Fix favicon links

The feed passed NULL to strtotime() when there were no stories.

.env.example

@@ -7,9 +7,35 @@ DB_USER=xxx
 DB_PASS=
 DB_NAME=xxx
 
-# Google reCAPTCHA v2 keys (https://www.google.com/recaptcha/admin)
-RECAPTCHA_SITE_KEY=
-RECAPTCHA_SECRET=
+# Address of the site. The RSS feed links, the notification email and the
+# cookie domain use it, and the pages send plain HTTP requests to this
+# host over HTTPS. The email addresses are editor@ and webmaster@ this
+# host. If it is empty, the pages refuse plain HTTP.
+SITE_URL=https://xxx.org.za
 
-# Google Analytics tracking ID. Leave it empty to turn analytics off.
-GOOGLE_ANALYTICS_ID=
+# Google reCAPTCHA Enterprise checkbox key and its Google Cloud project ID.
+# Enable the reCAPTCHA Enterprise API in that project. RECAPTCHA_API_KEY is
+# a server-side Google Cloud API key, not the old reCAPTCHA secret. Restrict
+# it to that API and, if possible, the server's outbound IP address.
+# SITE_URL must have the same hostname as the page that shows the checkbox.
+# Leave RECAPTCHA_SITE_KEY empty to turn the captcha off.
+RECAPTCHA_SITE_KEY=
+RECAPTCHA_PROJECT_ID=
+RECAPTCHA_API_KEY=
+
+# Directory for uploaded images waiting to be saved. Keep it outside the
+# web root. The default is xxx-uploads in the system temporary directory.
+UPLOAD_DIR=
+
+# The largest image a story can have, in megabytes (default 1). Set it
+# to none for no limit. PHP's upload_max_filesize still applies.
+UPLOAD_MAX_MB=
+
+# The most that the upload directory holds, in megabytes (default 100).
+# Past this, previews do not keep new images. Abandoned uploads are
+# removed after a day.
+UPLOAD_DIR_LIMIT_MB=
+
+# Show PHP errors in the page (1) or on stderr (stderr). Leave it empty in
+# production: errors always go to the PHP error log.
+DISPLAY_ERRORS=

.gitignore

@@ -1,2 +1,10 @@
 # Local configuration and secrets (see .env.example)
 .env
+
+# Old upload directory; uploads now go to UPLOAD_DIR outside the web root
+graphics/tmp/
+
+# Test tools (composer install, npm install)
+/vendor/
+/node_modules/
+/.phpunit.cache/

.htaccess

@@ -5,3 +5,13 @@
 <FilesMatch "^\.">
   Require all denied
 </FilesMatch>
+
+# Do not serve the development files: the tests, the packages that
+# Composer and npm install, and their configuration. These files are not
+# needed on the live site (see README.md).
+<If "%{REQUEST_URI} =~ m#^/(vendor|node_modules|tests)(/|$)#">
+  Require all denied
+</If>
+<FilesMatch "^(composer\.(json|lock|phar)|package(-lock)?\.json|phpunit\.xml(\.dist)?)$">
+  Require all denied
+</FilesMatch>

README.md

@@ -0,0 +1,87 @@
+# xxx.org.za
+
+A Content Management System for x.x.x, a collection of 100-word stories.
+
+This code was mostly written between 2004 and 2008, although the git history
+doesn't stretch that far. If you're wondering why some core ports don't use
+fancy new PHP features... that's probably why.
+
+The site reads its configuration from `.env`. Copy `.env.example` to
+`.env`, and set the values in it.
+
+## reCAPTCHA
+
+To enable reCAPTCHA, set up the Google Cloud credentials:
+
+1. Enable the reCAPTCHA Enterprise API in the project that owns your
+   checkbox key.
+2. Set `RECAPTCHA_SITE_KEY` to that checkbox key in `.env`.
+3. Set `RECAPTCHA_PROJECT_ID` to the Google Cloud project ID.
+4. Create a Google Cloud API key for server requests.
+5. Restrict the API key to the reCAPTCHA Enterprise API.
+6. If the server has a fixed outbound IP address, restrict the API key
+   to that address too.
+7. Set `RECAPTCHA_API_KEY` to the API key in `.env`.
+8. Set `SITE_URL` to the site's HTTPS address.
+
+## Tests
+
+The repository has three sets of tests:
+
+- The PHP unit tests (`tests/php/Unit`) run the functions of the site
+  against a fake database. They do not need MySQL or the network.
+- The PHP page tests (`tests/php/Pages`) run the pages on the PHP
+  built-in web server, and send HTTP requests to them.
+- The JavaScript tests (`tests/js`) run the story editor and the other
+  scripts in jsdom, a browser document for Node.js.
+
+No test uses the real database, the real `.env` file, Google, or a mail
+server. The tests use `tests/php/fixtures/test.env` for the
+configuration, and they write only to the system temporary directory.
+
+### Requirements
+
+- PHP 8.4.1 or later on the command line, with the dom, filter, json,
+  libxml, mbstring, simplexml and xmlwriter extensions. The mysqli
+  extension is not necessary.
+- Composer.
+- Node.js 20.19, 22.13, or 24 or later, with npm.
+
+### Run the PHP tests
+
+Install PHPUnit and the other development packages into `vendor/`:
+
+```sh
+composer install
+```
+
+Run all the PHP tests:
+
+```sh
+composer test
+```
+
+### Run the JavaScript tests
+
+Install jsdom into `node_modules/`, then run the tests:
+
+```sh
+npm install
+npm test
+```
+
+To run one file:
+
+```sh
+node --test tests/js/editor.test.js
+```
+
+### Development files on the live site
+
+Do not install the development packages on the live server. The site itself
+does not use them.
+
+If the tests or the packages are on the server, `.htaccess` stops Apache from
+serving `tests/`, `vendor/`, `node_modules/` and the Composer, npm and PHPUnit
+files. This needs `AllowOverride AuthConfig`, as the other rules in `.htaccess`
+do.

about.php

@@ -1,21 +1,21 @@
-<? require_once("./session.lib.php"); ?>
+<?php require_once("./session.lib.php"); ?>
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>x.x.x [about]</title>
-    <link rel="icon" href="favicon.png" />
-    <link rel="shortcut icon" href="favicon.png" />
+    <link rel="icon" href="/favicon.png" />
+    <link rel="shortcut icon" href="/favicon.png" />
     <link rel="stylesheet" type="text/css" href="style.css" />
-    <link rel="alternate" type="application/rss+xml" title="xxx.org.za RSS feed" href="/feed" />
     <script type="text/javascript" src="utilities.js"></script>
+    <link rel="alternate" type="application/rss+xml" title="xxx.org.za RSS feed" href="/feed" />
   </head>
-<? flush(); ?>
+<?php flush(); ?>
 <body>
 <div id="container">
-<? include_once("./sidebar.inc.php"); ?>
-<div id="main">
+<?php include_once("./sidebar.inc.php"); ?>
+<main id="main">
 <div id="maintext">
 
 <h1>about this site</h1>
@@ -75,7 +75,7 @@ the centre <span class="xxx">x</span> a multiplication sign. Simply put, ten by
 </p>
 <h2>Something is broken</h2>
 <p>
-If you find anything which seems to be broken, please <a href="&#109;&#97;&#105;&#108;&#116;&#111;&#58;&#119;&#101;&#98;&#109;&#97;&#115;&#116;&#101;&#114;&#64;&#120;&#120;&#120;&#46;&#111;&#114;&#103;&#46;&#122;&#97;">email us</a>
+If you find anything which seems to be broken, please <a href="<?= hidden_email('mailto:' . site_email('webmaster')) ?>">email us</a>
 and tell us. 
 </p>
 
@@ -96,12 +96,12 @@ Kawabata</a> has an excellent book of short stories, entitled
 stories "drabblets". 
 </p>
 
-</div> <!-- maintext  -->
-</div> <!-- main      -->
-<? include_once("./bottombar.inc.php"); ?>
-</div> <!-- container -->
+</div> <!-- .maintext  -->
+</main> <!-- .main      -->
+</div> <!-- .container -->
+<?php include_once("./bottombar.inc.php"); ?>
 
-<? open_db('close'); ?>
+<?php open_db('close'); ?>
 
 </body>
 </html>

article.php

@@ -1,17 +1,17 @@
-<? require_once("./session.lib.php"); ?>
+<?php require_once("./session.lib.php"); ?>
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>x.x.x [view]</title>
-    <link rel="icon" href="favicon.png" />
-    <link rel="shortcut icon" href="favicon.png" />
+    <link rel="icon" href="/favicon.png" />
+    <link rel="shortcut icon" href="/favicon.png" />
     <link rel="stylesheet" type="text/css" href="style.css" />
-    <link rel="alternate" type="application/rss+xml" title="xxx.org.za RSS feed" href="/feed" />
     <script type="text/javascript" src="utilities.js"></script>
+    <link rel="alternate" type="application/rss+xml" title="xxx.org.za RSS feed" href="/feed" />
   </head>
-<? 
+<?php 
   flush();
   $num_stories = 5;
   $editable    = FALSE;
@@ -21,24 +21,24 @@
 ?>
 <body>
 <div id="container">
-<? include_once("./sidebar.inc.php"); ?>
-<div id="main">
+<?php include_once("./sidebar.inc.php"); ?>
+<main id="main">
 <div id="maintext">
 
 <h1 class="logo">x&middot;x&middot;x</h1>
 
-<?
+<?php
 if (!get_id() && (get_count() > 1))
   echo sort_options("article");
 echo display_stories();
 ?>
 
-</div> <!-- maintext  -->
-</div> <!-- main      -->
-<? include_once("./bottombar.inc.php"); ?>
-</div> <!-- container -->
+</div> <!-- .maintext  -->
+</main> <!-- .main      -->
+</div> <!-- .container -->
+<?php include_once("./bottombar.inc.php"); ?>
 
-<? open_db('close'); ?>
+<?php open_db('close'); ?>
 
 </body>
 </html>

bottombar.inc.php

@@ -1,5 +1,4 @@
 <footer id="bottom"><p>
-All stories and submissions <a class="whitefont" href="about">&copy;</a> 2003&ndash;<? echo gmdate("Y"); ?> their respective authors. 
+All stories and submissions <a class="whitefont" href="about">&copy;</a> 2003&ndash;<?php echo gmdate("Y"); ?> their respective authors. 
 </p></footer>
-<? $_SESSION['referrer'] = $_SERVER['REQUEST_URI']; ?>
-<? include_once('google.inc.php'); ?>
+<?php $_SESSION['referrer'] = $_SERVER['REQUEST_URI']; ?>

captcha.lib.php

@@ -0,0 +1,114 @@
+<?php
+/*
+ * Google reCAPTCHA Enterprise, with a checkbox key. Configuration comes
+ * from RECAPTCHA_SITE_KEY, RECAPTCHA_PROJECT_ID and RECAPTCHA_API_KEY.
+ * SITE_URL supplies the hostname that a response must match.
+ *
+ * Without RECAPTCHA_SITE_KEY the captcha is off. With a site key, missing
+ * configuration or a failed assessment blocks the request.
+ */
+require_once(__DIR__ . '/config.lib.php');
+require_once(__DIR__ . '/html.lib.php');
+
+define('CAPTCHA_PASS_SECONDS', 30 * 60);
+
+function captcha_enabled() {
+  return (string)config('RECAPTCHA_SITE_KEY') !== '';
+}
+
+function captcha_script() {
+  if (!captcha_enabled())
+    return '';
+  return '<script src="https://www.google.com/recaptcha/enterprise.js" async defer></script>';
+}
+
+function captcha_widget($action = 'submit') {
+  if (!captcha_enabled())
+    return '';
+  return '<div class="g-recaptcha" data-sitekey="'.form_value(config('RECAPTCHA_SITE_KEY')).'" data-action="'.form_value($action).'"></div>';
+}
+
+// The expected action comes from the page, never from the request
+function captcha_verify_response($action = 'submit') {
+  if (!captcha_enabled())
+    return TRUE;
+  $response = $_POST['g-recaptcha-response'] ?? '';
+  if (!is_string($response) || $response === '')
+    return FALSE;
+  $project = trim((string)config('RECAPTCHA_PROJECT_ID'));
+  $api_key = trim((string)config('RECAPTCHA_API_KEY'));
+  $host = strtolower(site_host());
+  if ($project === '' || $api_key === '' || $host === '') {
+    error_log('xxx: reCAPTCHA needs RECAPTCHA_PROJECT_ID, RECAPTCHA_API_KEY and a SITE_URL with a host');
+    return FALSE;
+  }
+  if (preg_match('/[\r\n]/', $api_key)) {
+    error_log('xxx: RECAPTCHA_API_KEY contains a line break');
+    return FALSE;
+  }
+  $body = json_encode(array('event' => array(
+    'token'          => $response,
+    'siteKey'        => (string)config('RECAPTCHA_SITE_KEY'),
+    'expectedAction' => $action,
+    'userIpAddress'  => $_SERVER['REMOTE_ADDR'] ?? '',
+  )));
+  if ($body === FALSE)
+    return FALSE;
+  // Keep the API key out of URLs and logs, and do not forward it on redirects
+  $context = stream_context_create(array('http' => array(
+    'method'          => 'POST',
+    'header'          => "Content-Type: application/json\r\nX-Goog-Api-Key: $api_key\r\n",
+    'content'         => $body,
+    'timeout'         => 10,
+    'follow_location' => 0,
+    'ignore_errors'   => FALSE,
+  )));
+  $url = 'https://recaptchaenterprise.googleapis.com/v1/projects/'.rawurlencode($project).'/assessments';
+  $reply = @file_get_contents($url, FALSE, $context);
+  if ($reply === FALSE) {
+    error_log('xxx: reCAPTCHA assessment request failed');
+    return FALSE;
+  }
+  $result = json_decode($reply);
+  if (!is_object($result) || isset($result->error) || !is_object($result->tokenProperties ?? NULL)) {
+    error_log('xxx: reCAPTCHA returned an invalid assessment or an API error');
+    return FALSE;
+  }
+  $token = $result->tokenProperties;
+  if (($token->valid ?? FALSE) !== TRUE)
+    return FALSE;
+  if (!is_string($token->hostname ?? NULL) || strtolower($token->hostname) !== $host) {
+    error_log('xxx: reCAPTCHA hostname did not match SITE_URL');
+    return FALSE;
+  }
+  if (($token->action ?? NULL) !== $action) {
+    error_log('xxx: reCAPTCHA action did not match the page');
+    return FALSE;
+  }
+  // Keep checkbox behavior; do not reject visitors by a risk score
+  return TRUE;
+}
+
+/*
+ * For story submissions: a solved captcha counts for CAPTCHA_PASS_SECONDS
+ * in this session, so the preview and the submit need only one captcha.
+ * captcha_used() ends the pass once a story is saved.
+ */
+function captcha_passed() {
+  return !empty($_SESSION['captcha_ok']) && $_SESSION['captcha_ok'] > time() - CAPTCHA_PASS_SECONDS;
+}
+
+function captcha_check() {
+  if (captcha_passed())
+    return TRUE;
+  if (captcha_verify_response()) {
+    $_SESSION['captcha_ok'] = time();
+    return TRUE;
+  }
+  return FALSE;
+}
+
+function captcha_used() {
+  unset($_SESSION['captcha_ok']);
+}
+?>

composer.json

@@ -0,0 +1,20 @@
+{
+    "name": "xxx/xxx",
+    "description": "x.x.x, a site of hundred-word stories",
+    "type": "project",
+    "license": "proprietary",
+    "require-dev": {
+        "phpunit/phpunit": "^13.3"
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Xxx\\Tests\\": "tests/php/"
+        }
+    },
+    "config": {
+        "sort-packages": true
+    },
+    "scripts": {
+        "test": "phpunit"
+    }
+}

config.lib.php

@@ -39,4 +39,57 @@ function config($key, $default = NULL) {
 
   return array_key_exists($key, $values) ? $values[$key] : $default;
 }
+
+/*
+ * The address of the site comes from SITE_URL, never from the Host
+ * header, which the browser controls. site_url() gives the scheme, host
+ * and port (for example "https://xxx.org.za"), and site_host() gives the
+ * host. Both are empty if SITE_URL has no host.
+ */
+function site_url_parts() {
+  $site = parse_url(trim((string)config('SITE_URL', '')));
+  return is_array($site) && !empty($site['host']) ? $site : array();
+}
+
+function site_host() {
+  return site_url_parts()['host'] ?? '';
+}
+
+function site_url($scheme = NULL) {
+  $site = site_url_parts();
+  if (!$site)
+    return '';
+  $port = isset($site['port']) ? ':' . $site['port'] : '';
+  return ($scheme ?? $site['scheme'] ?? 'https') . '://' . $site['host'] . $port;
+}
+
+// An address at the site's host, such as "editor@xxx.org.za"
+function site_email($name) {
+  return $name . '@' . site_host();
+}
+
+// The cookie domain: the site's host and its subdomains
+function cookie_domain() {
+  return site_host() === '' ? '' : '.' . site_host();
+}
+
+/*
+ * Send a plain HTTP request to the same page over HTTPS, and stop.
+ * Without SITE_URL, the page refuses plain HTTP.
+ */
+function require_https() {
+  if (isset($_SERVER['HTTPS']))
+    return;
+  if (site_url() === '') {
+    http_response_code(403);
+    echo "This page needs HTTPS.\n";
+  } else {
+    header('Location: ' . site_url('https') . $_SERVER['REQUEST_URI']);
+  }
+  exit;
+}
+
+// Always log PHP errors; show them only if DISPLAY_ERRORS is set (for development)
+ini_set('log_errors', '1');
+ini_set('display_errors', (string)config('DISPLAY_ERRORS', '0'));
 ?>

display.php

@@ -1,25 +1,44 @@
-<?
+<?php
 require_once('./open_db.lib.php');
 open_db('open');
 require_once('./get_data.lib.php');
 $queue = get_queue();
 if ($queue) session_cache_limiter('nocache');
 else session_cache_limiter('none');
-session_set_cookie_params(strtotime('+1 year'), '/', '.xxx.org.za', TRUE, TRUE);
+// Refuse a session id that PHP did not make, so nobody can plant one
+ini_set('session.use_strict_mode', '1');
+session_set_cookie_params(array('lifetime' => 0, 'path' => '/', 'domain' => cookie_domain(), 'secure' => TRUE, 'httponly' => TRUE, 'samesite' => 'Lax'));
 session_start();
-if (isset($_SESSION['editor'])) {
+if (isset($_SESSION['editor']) && editor_exists($_SESSION['editor'])) {
   $is_admin = TRUE;
   $username = $_SESSION['editor'];
 } else {
   $is_admin = FALSE;
 }
 
-display_img(get_id());
+if (isset($_GET['pending']))
+  display_pending_img();
+else
+  display_img(get_id());
+
+// Show the image this session uploaded at the preview step
+function display_pending_img() {
+  $file = pending_upload();
+  $info = $file ? getimagesize($file) : FALSE;
+  if (!$info) {
+    header("HTTP/1.1 404 Not Found");
+    return;
+  }
+  header("Content-type: ".$info['mime']);
+  header("Content-length: ".filesize($file));
+  header("X-Content-Type-Options: nosniff");
+  header("Cache-Control: private, no-store");
+  readfile($file);
+}
 
 function display_img($id) {
   global $db, $is_admin, $queue;
   $queue = get_queue();
-  $table = which_table();
 
   if ((isset($_SESSION['allow_queue_image']) && 
        $_SESSION['allow_queue_image'] == $id) ||
@@ -29,29 +48,44 @@ function display_img($id) {
     $allow_queue = FALSE;
   }
 
+  // Visitors can only see the image they submitted themselves, and no hidden stories
   if ($queue) {
-    if (!$is_admin && !$allow_queue) {
+    if (!$allow_queue) {
       header("HTTP/1.1 401 Access Denied");
       return;
     }
+    $table = 'queue';
+    $hidden = "";
+  } else {
+    $table = 'xxx';
+    $hidden = $is_admin ? "" : " AND hidden IS NOT TRUE";
   }
 
-  $query = "SELECT img, mime FROM $table WHERE 1 AND ID = ".$db->real_escape_string($id)." LIMIT 0, 1";
-  $result = $db->query($query)or die("Query failed : ".mysql_error());
+  $columns = $queue ? "img, mime" : "img, mime, hidden";
+  $query = "SELECT $columns FROM $table WHERE 1 AND ID = ?".$hidden." LIMIT 0, 1";
+  $result = $db->execute_query($query, array((int)$id)) or db_fail();
 
   $row = $result->fetch_assoc();
   if ($row) {
-    $img_data = $row['img'];
-    $mimetype = $row['mime'];
+    $img_data = (string)$row['img'];
 
-    ob_start();
+    // Serve only real images, with the type found in the data itself (not
+    // the stored one), and stop browsers from guessing another type
+    $info = @getimagesizefromstring($img_data);
+    if (!$info) {
+      header("HTTP/1.1 404 Not Found");
+      $result->close();
+      return;
+    }
+
+    header("Content-type: ".$info['mime']);
+    header("Content-length: ".strlen($img_data));
+    header("X-Content-Type-Options: nosniff");
+    // Only this session can see a queued or hidden image: no cache may keep it
+    if ($queue || !empty($row['hidden'])) {
+      header("Cache-Control: private, no-store");
+    }
     print $img_data;
-    $size = ob_get_length();
-    $img  = ob_get_clean();
-
-    header("Content-type: $mimetype");
-    header("Content-length: $size");
-    print $img;
 
   } else {
     header("HTTP/1.1 404 Not Found");

feed.php

@@ -1,4 +1,4 @@
-<?
+<?php
 require_once('./open_db.lib.php');
 open_db('open');
 require_once('./get_data.lib.php');
@@ -10,45 +10,60 @@ $show   = get_show_num();
 $table = "xxx";
 
 header("Content-Type: application/rss+xml");
+$site = xml_text(site_url());
+
 
 // Set up a RSS "header"
 $query = "SELECT MAX(`date`) FROM $table;";
-$result = $db->query($query) or die("Query failed : ".$db->error());
+$result = $db->query($query) or db_fail();
 $most_recent = $result->fetch_row();
 $now = date("D, d M Y H:i:s O");
+// The date of the newest story, or now if there is none
+$last_date = $most_recent[0] ? date("D, d M Y H:i:s O", strtotime($most_recent[0])) : $now;
 
 echo '<?xml version="1.0"?>'."\n";
 echo '<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom">'."\n";
   echo '<channel>'."\n";
     echo '<title>x.x.x</title>'."\n";
-    echo '<link>http://xxx.org.za/</link>'."\n";
-    echo '<description>Most recent articles from xxx.org.za</description>'."\n";
+    echo '<link>'.$site.'/</link>'."\n";
+    echo '<description>Most recent articles from '.xml_text(site_host()).'</description>'."\n";
     echo '<language>en-za</language>'."\n";
     echo '<pubDate>'.$now.'</pubDate>'."\n";
-    echo '<lastBuildDate>'.date("D, d M Y H:i:s O", strtotime($most_recent[0])).'</lastBuildDate>'."\n";
-    echo '<managingEditor>&#101;&#100;&#105;&#116;&#111;&#114;&#64;&#120;&#120;&#120;&#46;&#111;&#114;&#103;&#46;&#122;&#97; (Editors)</managingEditor>'."\n";
-    echo '<webMaster>&#119;&#101;&#98;&#109;&#97;&#115;&#116;&#101;&#114;&#64;&#120;&#120;&#120;&#46;&#111;&#114;&#103;&#46;&#122;&#97; (Webmasters)</webMaster>'."\n";
-    echo '<atom:link href="http://xxx.org.za/feed" rel="self" type="application/rss+xml" />'."\n";
+    echo '<lastBuildDate>'.$last_date.'</lastBuildDate>'."\n";
+    echo '<managingEditor>'.hidden_email(site_email('editor')).' (Editors)</managingEditor>'."\n";
+    echo '<webMaster>'.hidden_email(site_email('webmaster')).' (Webmasters)</webMaster>'."\n";
+    echo '<atom:link href="'.$site.'/feed" rel="self" type="application/rss+xml" />'."\n";
       echo '<item>'."\n";
       echo '<title>Front Page</title>'."\n";
-      echo '<link>http://xxx.org.za/</link>'."\n";
-      echo '<pubDate>'.date("D, d M Y H:i:s O", strtotime($most_recent[0])).'</pubDate>'."\n";
-      echo '<guid>http://xxx.org.za/</guid>'."\n";
+      echo '<link>'.$site.'/</link>'."\n";
+      echo '<pubDate>'.$last_date.'</pubDate>'."\n";
+      echo '<guid>'.$site.'/</guid>'."\n";
       echo '</item>'."\n";
 
+/*
+ * Text for an XML element: decode any HTML entities (&hellip; is not an
+ * XML entity), drop characters XML does not allow, then escape.
+ */
+function xml_text($string) {
+  $string = mb_scrub(html_entity_decode_full((string)$string), 'UTF-8');
+  $string = preg_replace('/[^\x{9}\x{A}\x{D}\x{20}-\x{D7FF}\x{E000}-\x{FFFD}\x{10000}-\x{10FFFF}]/u', '', $string);
+  return htmlspecialchars((string)$string, ENT_XML1 | ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
+}
+
 $result = get_query();
 
 foreach ($result as $entry) {
+    $id = (int)$entry['id'];
     echo '<item>'."\n";
-    echo '<title>'.$entry['title'].'</title>'."\n";
-    echo '<link>http://xxx.org.za/article?id='.$entry['id'].'</link>'."\n";
+    echo '<title>'.xml_text($entry['title']).'</title>'."\n";
+    echo '<link>'.$site.'/article?id='.$id.'</link>'."\n";
     echo '<pubDate>'.date("D, d M Y H:i:s O", strtotime($entry['date'])).'</pubDate>'."\n";
     if ($entry['img']) 
-      echo '<description>Image: '.$entry['title'].'</description>'."\n";
+      echo '<description>Image: '.xml_text($entry['title']).'</description>'."\n";
     else
-      echo '<description>'.strip_tags(html_entity_decode_full($entry['story'])).'</description>'."\n";
-    echo '<dc:creator>'.$entry['author'].'</dc:creator>'."\n";
-    echo '<guid>http://xxx.org.za/article?id='.$entry['id'].'</guid>'."\n";
+      echo '<description>'.xml_text(strip_tags($entry['story'])).'</description>'."\n";
+    echo '<dc:creator>'.xml_text($entry['author']).'</dc:creator>'."\n";
+    echo '<guid>'.$site.'/article?id='.$id.'</guid>'."\n";
     echo '</item>'."\n";
 }
 

get_data.lib.php

@@ -1,5 +1,14 @@
-<?
+<?php
 require_once('open_db.lib.php');
+require_once(__DIR__ . '/lib/purify.inc.php');
+require_once(__DIR__ . '/html.lib.php');
+
+// The longest story HTML, in bytes. HTML Purifier needs seconds for a few megabytes.
+define('MAX_STORY_BYTES', 65536);
+
+function story_too_long($story) {
+  return strlen((string)$story) > MAX_STORY_BYTES;
+}
 
 function display_stories($id = NULL) {
   global $db, $is_admin, $editable, $action;
@@ -8,17 +17,21 @@ function display_stories($id = NULL) {
   $search = get_search_args();
   $page   = '';
   $nolink = NULL;
+  $posted = FALSE;
+  $date   = '';
 
   if ($action == 'preview') {
     global $file_src;
     $date = 'Awaiting posting';
     $result = get_post_data(TRUE);
     $nolink = TRUE;
+    $posted = TRUE;
   } else if ($action == 'submit') {
-    $date = 'Posted '.gmdate("Y-m-d H:i:s");
+    $date = 'Posted '.gmdate("Y-m-d H:i");
     if (!$is_admin) {
       $result = get_post_data(TRUE);
       $nolink = TRUE;
+      $posted = TRUE;
     } else {
       $result = get_query($id);
     }
@@ -27,7 +40,7 @@ function display_stories($id = NULL) {
   }
 
   if (count($result) == 0) {
-    $page .= '<div class="boxline"></div>'."\n";
+    $page .= ''."\n";
     if ($search) {
       $page .= '<div class="box">'."\n";
       $page .= '<p>No articles found.</p>
@@ -40,55 +53,63 @@ searches the title, author, date, and the text of each article.</p>'."\n";
       $page .= '<p>No articles found.</p>';
       $page .= '</div>'."\n";
     }
-    $page .= '<div class="boxline"></div>'."\n";
+    $page .= ''."\n";
     return $page;
   }
 
-  $page .= '<div class="boxline"></div>'."\n";
+  $page .= '<ul class="article-list">'."\n";
   foreach ($result as $entry) {
     if (empty($entry['id']) && isset($_SESSION['allow_queue_image'])) {
       $entry['id'] = $_SESSION['allow_queue_image'];
     }
+    // Escape everything that goes into the page
+    $entry_id  = (int)$entry['id'];
+    $queue_url = $entry['queue_url'] ? 1 : 0;
+    $title     = h($entry['title']);
+    $entry_date = $date;
     if ($entry['date'])
-      $date = '<time datetime="'.date("Y-m-d\TH:i:sP", strtotime($entry['date'])).'">' . $entry['date'] . '</time>';
-    $page .= '<div class="box">';
+      $entry_date = '<time datetime="'.date("Y-m-d\TH:i:sP", strtotime($entry['date'])).'">' .  
+date("Y-m-d H:i", strtotime($entry['date'])) . '</time>';
+    $page .= '<li class="box">';
     $page .= '<article>';
     if ($is_admin && !$editable) {
-      $page .= '<span class="right">[<a href="/publish/edit?id='.$entry['id'].'&amp;queue='.$entry['queue_url'].'">edit</a>]</span>';
+      $page .= '<span class="right">[<a href="/publish/edit?id='.$entry_id.'&amp;queue='.$queue_url.'">edit</a>]</span>';
     } 
     $page .= '<h3 class="articletitle">';
     if ($nolink) {
-      $page .= $entry['title'];
+      $page .= $title;
     } else if ($is_admin && $editable) {
-      $page .= '<a href="/publish/edit?id='.$entry['id'].'&amp;queue='.$entry['queue_url'].'">';
-      $page .= $entry['title'];
+      $page .= '<a href="/publish/edit?id='.$entry_id.'&amp;queue='.$queue_url.'">';
+      $page .= $title;
       $page .= '</a>';
     } else {
-      $page .= '<a href="/article?id='.$entry['id'].'">';
-      $page .= $entry['title'];
+      $page .= '<a href="/article?id='.$entry_id.'">';
+      $page .= $title;
       $page .= '</a>';
     }
     $page .= '</h3>';
     $page .= '<dl>';
     if ($entry['hidden'])
       $page .= '<span class="right red">[hidden]</span>';
-    $page .= '<dt class="author">By</dt> <dd class="author">' . $entry['author'] . '</dd>';
-    $page .= '<dt class="date">Posted</dt> <dd class="date">' . $date . '</dd>';
+    $page .= '<dt class="author">By</dt> <dd class="author">' . h($entry['author']) . '</dd>';
+    $page .= '<dt class="date">Posted</dt> <dd class="date">' . $entry_date . '</dd>';
     $page .= '</dl>';
     if (isset($file_src)) {
-      $page .= '<img src="'.$file_src.'" alt="'.$entry['title'].'" />';
+      $page .= '<img src="'.h($file_src).'" alt="'.$title.'" />';
     } else if (!empty($entry['img']) || !empty($entry['uploaded'])) {
       if ($editable) {
-        $page .= '<img src="/display?id='.$entry['id'].'&amp;queue='.$entry['queue_url'].'" alt="'.$entry['title'].'" />';
+        $page .= '<img src="/display?id='.$entry_id.'&amp;queue='.$queue_url.'" alt="'.$title.'" />';
       } else {
-        $page .= '<img src="/display?id='.$entry['id'].'" alt="'.$entry['title'].'" />';
+        $page .= '<img src="/display?id='.$entry_id.'" alt="'.$title.'" />';
       }
+    } else if ($posted && story_too_long($entry['story'])) {
+      $page .= '<p>The story is too long to show.</p>'."\n";
     } else {
-      $page .= $entry['story']."\n";
+      $page .= purify_story($entry['story'])."\n";
     }
-    $page .= "</article>\n</div>\n";
+    $page .= "</article>\n</li>\n";
   }
-  $page .= '<div class="boxline"></div>'."\n";
+  $page .= '</ul>'."\n";
 
   if (count($result) > 1)
     $page .= get_pager();
@@ -104,37 +125,40 @@ function get_count() {
   $search = get_search_args();
   $queue = get_queue(); 
   $table = which_table();
+  $params = array();
 
   // if search= is defined, search....
   if ($search) {
     $count_query = "SELECT COUNT(*) FROM $table WHERE".
-      " (  title  LIKE '%".$search."%'".
-      " OR author LIKE '%".$search."%'".
-      " OR date   LIKE '%".$search."%'".
-      " OR story  LIKE '%".$search."%'".
-      " )";
+      " (title LIKE ? OR author LIKE ? OR date LIKE ? OR story LIKE ?)";
+    $params = array_fill(0, 4, "%$search%");
   // Otherwise, fall back to default view
   } else {
     $count_query = "SELECT COUNT(*) FROM ".$table." WHERE 1";
   }
-  if (!$is_admin && !$queue)
+  if (!$is_admin)
     $count_query .= " AND hidden IS NOT TRUE";
-  $count_query .= " ;";
 
   //echo $count_query." <br />";
   $row_count = NULL;
-  echo $db->info;
   if ($count_query) {
-    if ($result = $db->query($count_query)) {
+    if ($result = $db->execute_query($count_query, $params)) {
       $row_count = $result->fetch_row();
       $result->close();
     } else {
-      die("Error in query: $db->error");
+      db_fail();
     }
   }
   return $row_count[0];
 } 
 
+/*
+ * The story columns that the pages read. The image data stays in the
+ * database (display.php reads it): img is 1 for a story with an image,
+ * and NULL for one without.
+ */
+define('STORY_COLUMNS', 'id, title, author, email, date, story, hidden, mime, comments, editor, IF(LENGTH(img) > 0, 1, NULL) AS img');
+
 /*
  * Return array of results, correctly keyed to column names.
  */
@@ -148,42 +172,41 @@ function get_query($id = NULL) {
   $queue   = get_queue();
   $table   = which_table();
   $results = array();
+  $params  = array();
+  $limit   = " LIMIT ".(int)$start." , ".(int)$show;
 
   // If id= is defined, show the corresponding application only
   if (is_numeric($id)) {
-    if (!$is_admin && !$queue)
-      $query = "SELECT * FROM $table WHERE 1 AND hidden IS NOT TRUE AND id = ".$id." LIMIT 0, 1";
+    if (!$is_admin)
+      $query = "SELECT ".STORY_COLUMNS." FROM $table WHERE 1 AND hidden IS NOT TRUE AND id = ".(int)$id." LIMIT 0, 1";
     else
-      $query = "SELECT * FROM $table WHERE 1 AND id = ".$id." LIMIT 0, 1";
+      $query = "SELECT ".STORY_COLUMNS." FROM $table WHERE 1 AND id = ".(int)$id." LIMIT 0, 1";
 
   // if search= is defined, search....
   } else if ($search) {
-    $query = "SELECT * FROM $table WHERE".
-      " (  title  LIKE '%".$search."%'".
-      " OR author LIKE '%".$search."%'".
-      " OR date   LIKE '%".$search."%'".
-      " OR story  LIKE '%".$search."%'".
-      " )";
-    if (!$is_admin && !$queue)
+    $query = "SELECT ".STORY_COLUMNS." FROM $table WHERE".
+      " (title LIKE ? OR author LIKE ? OR date LIKE ? OR story LIKE ?)";
+    $params = array_fill(0, 4, "%$search%");
+    if (!$is_admin)
       $query .= " AND hidden IS NOT TRUE";
-    $query .= " ORDER BY ".$sort." " .$order." LIMIT " .$start." , ".$show." ;";
+    $query .= " ORDER BY ".$sort." ".$order.$limit;
   // Otherwise, fall back to default view
   } else {
-    $query  = "SELECT * FROM ".$table." WHERE 1";
-    if (!$is_admin && !$queue)
+    $query  = "SELECT ".STORY_COLUMNS." FROM ".$table." WHERE 1";
+    if (!$is_admin)
       $query .= " AND hidden IS NOT TRUE";
-    $query .= " ORDER BY ".$sort." " .$order." LIMIT " .$start." , ".$show." ;";
+    $query .= " ORDER BY ".$sort." ".$order.$limit;
   }
 
   //echo $query;
-  if ($result = $db->query($query)) {
+  if ($result = $db->execute_query($query, $params)) {
     while ($row = $result->fetch_assoc()) {
       $row['queue_url'] = $queue ? 1 : 0;
       $results[] = $row;
     }
     $result->close();
   } else {
-    die("Error in query: $db->error");
+    db_fail();
   }
   return $results;
 }
@@ -192,9 +215,9 @@ function get_query($id = NULL) {
  * Return array of the POST variables we may care about 
  * (safer than extract($_POST))
  *
- * If $stripslashes is non-null, run stripslashes on the values
- * Note that stripslashes turns NULL into string("")
- * and int(0) into string("0")
+ * If $stripslashes is non-null, turn every value into a string:
+ * NULL (or an array) becomes string(""), int(0) becomes string("0").
+ * (It used to run stripslashes, but magic_quotes_gpc no longer exists.)
  *
  * If $html is non-null, run the output through htmlspecialchars,
  * to translate HTML-unsafe characters. This should only be needed
@@ -218,7 +241,7 @@ function get_post_data($stripslashes = NULL, $html = NULL) {
   $entry['queue_url']  = $queue ? 1 : 0;
 
   if ($stripslashes) {
-    $entry = array_map('stripslashes', $entry);
+    $entry = array_map('map_string', $entry);
   }
   if ($html) {
     $entry = array_map('map_html', $entry);
@@ -226,8 +249,11 @@ function get_post_data($stripslashes = NULL, $html = NULL) {
   $results[] = $entry;
   return $results;
 }
+function map_string($value) {
+  return is_scalar($value) ? (string)$value : '';
+}
 function map_html($string) {
-  return htmlspecialchars($string, ENT_QUOTES, 'UTF-8', FALSE);
+  return htmlspecialchars(map_string($string), ENT_QUOTES, 'UTF-8', FALSE);
 }
 function unmap_html($string) {
   return htmlspecialchars_decode($string, ENT_QUOTES);
@@ -242,7 +268,7 @@ function get_id() {
   if (is_numeric($id)) {
     return $id;
   } else if (isset($_REQUEST['id']) && is_numeric($_REQUEST['id'])) {
-    $id = $db->real_escape_string(stripslashes($_REQUEST['id']));
+    $id = $db->real_escape_string($_REQUEST['id']);
     return $id;
   } else {
     return NULL;
@@ -251,16 +277,15 @@ function get_id() {
 
 function get_search_args() {
   global $db;
-  if (isset($_GET['search'])) {
-    $search = $db->real_escape_string($_GET['search']);
-    return $search;
+  if (isset($_GET['search']) && is_string($_GET['search'])) {
+    return $_GET['search'];
   }
 }
 
 function get_order() {
   global $db;
   $order = NULL;
-  if (isset($_GET['order'])) {
+  if (isset($_GET['order']) && is_string($_GET['order'])) {
     $order = $db->real_escape_string($_GET['order']);
   }
   // Sort ascending by default
@@ -278,7 +303,7 @@ function get_order() {
 function get_sort_arg() {
   global $db;
   $sort = NULL;
-  if (isset($_GET['sort'])) {
+  if (isset($_GET['sort']) && is_string($_GET['sort'])) {
     $sort = $db->real_escape_string($_GET['sort']);
   }
   if ($sort != "author" &&
@@ -288,29 +313,34 @@ function get_sort_arg() {
   return $sort;
 }
   
+// The most stories that one page can show
+define('MAX_SHOW', 50);
+
+// Return a whole number from the query string, limited to $min..$max,
+// or NULL if the value is missing or is not a whole number
+function get_int_arg($name, $min, $max = PHP_INT_MAX) {
+  if (!isset($_GET[$name]) || !is_string($_GET[$name]))
+    return NULL;
+  $value = filter_var(trim($_GET[$name]), FILTER_VALIDATE_INT);
+  if ($value === FALSE)
+    return NULL;
+  return max($min, min($max, $value));
+}
+
 function get_show_num() {
-  global $db, $num_stories;
-  $show = NULL;
-  if (isset($_GET['show'])) {
-    $show = $db->real_escape_string($_GET['show']);
-  }
-  if (is_numeric($show))
+  global $num_stories;
+  $show = get_int_arg('show', 1, MAX_SHOW);
+  if ($show !== NULL)
     return $show;
   else if ($num_stories)
-    return $num_stories;
+    return (int)$num_stories;
   else // provide fallback
     return 1;
 }
   
 function get_start_num() {
-  global $db;
-  $start = NULL;
-  if (isset($_GET['start'])) {
-    $start = $db->real_escape_string($_GET['start']);
-  }
-  if (!is_numeric($start))
-    $start = 0;
-  return $start;
+  $start = get_int_arg('start', 0);
+  return $start === NULL ? 0 : $start;
 } 
 
 /*
@@ -334,8 +364,10 @@ function which_table($move = FALSE, $action = 'read') {
   global $is_admin;
   $queue = get_queue();
 
-  // Editing
-  if ($action == 'delete' && $move && $is_admin) {
+  // Editing: a visitor can never write to the live table
+  if (!$is_admin && in_array($action, array('post', 'save', 'submit', 'delete'))) {
+    return 'queue';
+  } else if ($action == 'delete' && $move && $is_admin) {
     return 'queue';
   } else if ($action == 'post' && $is_admin) {
     return 'xxx';
@@ -343,9 +375,127 @@ function which_table($move = FALSE, $action = 'read') {
     return 'queue';
 
   // Viewing
-  } else if ($queue && ($is_admin || array_key_exists('allow_queue_image', $_SESSION))) {
+  } else if ($queue && $is_admin) {
     return 'queue';
   } else {
     return 'xxx';
   }
 }
+
+/*
+ * Uploaded images wait in a directory outside the web root until the
+ * story is saved. The session holds the random file name, so the client
+ * never sends a file path.
+ */
+function upload_dir() {
+  $dir = rtrim(config('UPLOAD_DIR') ?: sys_get_temp_dir() . '/xxx-uploads', '/');
+  if (!is_dir($dir))
+    mkdir($dir, 0700, TRUE);
+  return $dir;
+}
+
+/*
+ * A size in megabytes from the configuration, in bytes. An empty, missing
+ * or bad value, or one that is not above zero, gives $default_mb.
+ */
+function config_megabytes($key, $default_mb) {
+  $value = trim((string)config($key, ''));
+  if (!is_numeric($value) || (float)$value <= 0)
+    $value = $default_mb;
+  return (int)((float)$value * 1024 * 1024);
+}
+
+/*
+ * The largest image a story can have, in bytes, from UPLOAD_MAX_MB (1 MB
+ * by default). NULL means no limit, which UPLOAD_MAX_MB=none gives.
+ */
+function upload_max_bytes() {
+  if (strtolower(trim((string)config('UPLOAD_MAX_MB', ''))) === 'none')
+    return NULL;
+  return config_megabytes('UPLOAD_MAX_MB', 1);
+}
+
+// The most that the upload directory holds, in bytes, from UPLOAD_DIR_LIMIT_MB (100 MB by default)
+function upload_dir_limit_bytes() {
+  return config_megabytes('UPLOAD_DIR_LIMIT_MB', 100);
+}
+
+// The same in megabytes for a message, such as "1" or "2.5"
+function upload_max_mb() {
+  return rtrim(rtrim(number_format(upload_max_bytes() / 1048576, 2, '.', ''), '0'), '.');
+}
+
+function is_upload_name($name) {
+  return is_string($name) && preg_match('/^[0-9a-f]{32}\z/', $name);
+}
+
+// Upload files older than this are abandoned previews
+define('UPLOAD_MAX_AGE', 86400);
+
+/*
+ * Move a file from $_FILES into the upload directory, and remember it
+ * in the session. Returns the new path, or FALSE. A session keeps one
+ * upload: a new one replaces the last. Abandoned uploads are removed
+ * first, and nothing is kept if the directory would grow past
+ * UPLOAD_DIR_LIMIT_MB (100 MB by default).
+ */
+function store_upload($tmp_file) {
+  prune_uploads();
+  remove_pending_upload();
+  if (upload_dir_size() + (int)@filesize($tmp_file) > upload_dir_limit_bytes())
+    return FALSE;
+  $name = bin2hex(random_bytes(16));
+  $file = upload_dir() . '/' . $name;
+  if (!move_uploaded_file($tmp_file, $file))
+    return FALSE;
+  $_SESSION['pending_upload'] = $name;
+  return $file;
+}
+
+// The upload files, name => path; nothing else in the directory counts
+function upload_files() {
+  $files = array();
+  foreach (glob(upload_dir() . '/*') ?: array() as $file) {
+    if (is_upload_name(basename($file)) && is_file($file))
+      $files[basename($file)] = $file;
+  }
+  return $files;
+}
+
+function upload_dir_size() {
+  return array_sum(array_map(function ($file) { return (int)@filesize($file); }, upload_files()));
+}
+
+// Remove the uploads that are older than UPLOAD_MAX_AGE
+function prune_uploads() {
+  foreach (upload_files() as $file) {
+    if (@filemtime($file) < time() - UPLOAD_MAX_AGE)
+      @unlink($file);
+  }
+}
+
+// Remove the file of this session's upload, and forget it
+function remove_pending_upload() {
+  if ($file = pending_upload())
+    @unlink($file);
+  unset($_SESSION['pending_upload']);
+}
+
+/*
+ * Return the path of the image this session uploaded earlier, or FALSE.
+ */
+function pending_upload() {
+  $name = $_SESSION['pending_upload'] ?? NULL;
+  if (!is_upload_name($name))
+    return FALSE;
+  $file = upload_dir() . '/' . $name;
+  return is_file($file) ? $file : FALSE;
+}
+
+/*
+ * URL that shows the pending image; the name part stops browsers from
+ * showing an older upload from their cache.
+ */
+function pending_upload_url() {
+  return '/display?pending=' . substr($_SESSION['pending_upload'] ?? '', 0, 8);
+}

google.inc.php

@@ -1,13 +0,0 @@
-<?
-$ga_id = config('GOOGLE_ANALYTICS_ID');
-if (! $is_admin && $ga_id) { ?>
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', <?= json_encode($ga_id, JSON_HEX_TAG) ?>, 'auto');
-  ga('send', 'pageview');
-</script>
-<? } ?>

graphics/Genericons.svg

@@ -1,543 +0,0 @@
-<?xml version="1.0" standalone="no"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
-<!--
-2014-10-3: Created.
--->
-<svg xmlns="http://www.w3.org/2000/svg">
-<metadata>
-Created by FontForge 20120731 at Fri Oct  3 09:39:07 2014
- By Joen
-Created by Joen with FontForge 2.0 (http://fontforge.sf.net)
-</metadata>
-<defs>
-<font id="Genericons" horiz-adv-x="2048" >
-  <font-face 
-    font-family="Genericons"
-    font-weight="500"
-    font-stretch="normal"
-    units-per-em="2048"
-    panose-1="2 0 6 9 0 0 0 0 0 0"
-    ascent="2048"
-    descent="0"
-    bbox="-0.0140489 0 2048.01 2048"
-    underline-thickness="102.4"
-    underline-position="-204.8"
-    unicode-range="U+F100-F517"
-  />
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graphics/menu.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="22" height="18" viewBox="0 0 22 18"><path d="m 1.5714287,3.6000003 h 18.8571433 c 0.867427,0 1.571428,-0.8064003 1.571428,-1.8000004 0,-0.99360001 -0.704001,-1.7999999 -1.571428,-1.7999999 h -18.8571433 c -0.86742866,0 -1.5714287,0.80639989 -1.5714287,1.7999999 0,0.9936001 0.70400004,1.8000004 1.5714287,1.8000004 z m 18.8571433,3.6000007 h -18.8571433 c -0.86742866,0 -1.5714287,0.8063993 -1.5714287,1.8000013 0,0.9935988 0.70400004,1.7999997 1.5714287,1.7999997 h 18.8571433 c 0.867427,0 1.571428,-0.8064009 1.571428,-1.7999997 0,-0.993602 -0.704001,-1.8000013 -1.571428,-1.8000013 z m 0,7.199999 h -18.8571433 c -0.86742866,0 -1.5714287,0.806402 -1.5714287,1.800003 0,0.993597 0.70400004,1.799997 1.5714287,1.799997 h 18.8571433 c 0.867427,0 1.571428,-0.8064 1.571428,-1.799997 0,-0.993601 -0.704001,-1.800003 -1.571428,-1.800003 Z"/></svg>

html.lib.php

@@ -0,0 +1,16 @@
+<?php
+// Escape plain text for HTML (existing entities such as &hellip; are kept)
+function h($string) {
+  return htmlspecialchars((string)$string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8', FALSE);
+}
+
+// Escape a raw value for an attribute or a textarea, so that it comes back unchanged
+function form_value($string) {
+  return htmlspecialchars((string)$string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
+}
+
+// Text as numeric character references, which hides an email address from simple harvesters
+function hidden_email($address) {
+  return preg_replace_callback('/./s', function ($char) { return '&#' . ord($char[0]) . ';'; }, (string)$address);
+}
+?>

index.php

@@ -1,17 +1,17 @@
-<? require_once("./session.lib.php"); ?>
+<?php require_once("./session.lib.php"); ?>
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
   <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>x.x.x</title>
-    <link rel="icon" href="favicon.png" />
-    <link rel="shortcut icon" href="favicon.png" />
+    <link rel="icon" href="/favicon.png" />
+    <link rel="shortcut icon" href="/favicon.png" />
     <link rel="stylesheet" type="text/css" href="style.css" />
-    <link rel="alternate" type="application/rss+xml" title="xxx.org.za RSS feed" href="/feed" />
     <script type="text/javascript" src="utilities.js"></script>
+    <link rel="alternate" type="application/rss+xml" title="xxx.org.za RSS feed" href="/feed" />
   </head>
-<? 
+<?php
   flush();
   $num_stories = 5;
   $editable    = FALSE;
@@ -21,11 +21,11 @@
 ?>
 <body>
 <div id="container">
-<? include_once("./sidebar.inc.php"); ?>
-<div id="main">
+<?php include_once("./sidebar.inc.php"); ?>
+<main id="main">
 <div id="maintext">
 
-<div class="logo"><img src="graphics/xxx.png" alt="x.x.x" /></div>
+<h1 class="logo">x&middot;x&middot;x</h1>
 
 <p>
 Welcome to <span class="xxx">x.x.x</span>. No, not hardcore pornography. Nor is it
@@ -36,17 +36,17 @@ encouraged!
 </p>
 <p>You can send in an entry <a href="/publish/">here</a>; take a shufty at the <a href="about">guidelines</a>.</p>
 
-<?
+<?php
 
 echo display_stories();
 
 ?>
-</div> <!-- maintext  -->
-</div> <!-- main      -->
-<? include_once("./bottombar.inc.php"); ?>
-</div> <!-- container -->
+</div> <!-- .maintext  -->
+</main> <!-- .main      -->
+</div> <!-- .container -->
+<?php include_once("./bottombar.inc.php"); ?>
 
-<? open_db('close'); ?>
+<?php open_db('close'); ?>
 
 </body>
 </html>

lib/convert_entities.inc.php

@@ -1,4 +1,4 @@
-<?
+<?php
 
 function html_entity_decode_full($string, $quotes = ENT_COMPAT, $charset = 'UTF-8') {
   /* Regular Expression:

lib/htmlpurifier-3.0.0/INSTALL

@@ -1,256 +0,0 @@
-
-Install
-    How to install HTML Purifier
-
-HTML Purifier is designed to run out of the box, so actually using the 
-library is extremely easy.  (Although... if you were looking for a 
-step-by-step installation GUI, you've downloaded the wrong software!)
-
-While the impatient can get going immediately with some of the sample
-code at the bottom of this library, it's well worth performing some
-basic sanity checks to get the most out of this library.
-
-
----------------------------------------------------------------------------
-1.  Compatibility
-
-HTML Purifier is PHP 5 only, and is actively tested from PHP 5.0.0 and 
-up (see tests/multitest.php for the specific versions that are being 
-actively tested). It has no core dependencies with other libraries. PHP 
-4 support was deprecated on December 31, 2007 with HTML Purifier 3.0.0. 
-Essential security fixes will be issued for the 2.1.x branch until 
-August 8, 2008. 
-
-These optional extensions can enhance the capabilities of HTML Purifier:
-
-    * iconv : Converts text to and from non-UTF-8 encodings
-    * tidy  : Used for pretty-printing HTML
-
-
----------------------------------------------------------------------------
-2.  Reconnaissance
-
-A big plus of HTML Purifier is its inerrant support of standards, so
-your web-pages should be standards-compliant.  (They should also use
-semantic markup, but that's another issue altogether, one HTML Purifier
-cannot fix without reading your mind.)
-
-HTML Purifier can process these doctypes:
-
-* XHTML 1.0 Transitional (default)
-* XHTML 1.0 Strict
-* HTML 4.01 Transitional
-* HTML 4.01 Strict
-* XHTML 1.1
-
-...and these character encodings:
-
-* UTF-8 (default)
-* Any encoding iconv supports (with crippled internationalization support)
-
-These defaults reflect what my choices where be if I were authoring an
-HTML document, however, what you choose depends on the nature of your
-codebase.  If you don't know what doctype you are using, you can determine
-the doctype from this identifier at the top of your source code:
-
-    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-
-...and the character encoding from this code:
-
-    <meta http-equiv="Content-type" content="text/html;charset=ENCODING">
-
-If the character encoding declaration is missing, STOP NOW, and
-read 'docs/enduser-utf8.html' (web accessible at
-http://htmlpurifier.org/docs/enduser-utf8.html).  In fact, even if it is
-present, read this document anyway, as most websites specify character
-encoding incorrectly.
-
-
----------------------------------------------------------------------------
-3.  Including the library
-
-The procedure is quite simple:
-
-    require_once '/path/to/library/HTMLPurifier.auto.php';
-
-I recommend only including HTML Purifier when you need it, because that
-call represents the inclusion of a lot of PHP files which constitute
-the bulk of HTML Purifier's memory usage.
-
-If you don't like your include_path to be fiddled around with, simply set
-HTML Purifier's library/ directory to the include path yourself and then:
-
-    require_once 'HTMLPurifier.php';
-
-Only the contents in the library/ folder are necessary, so you can remove
-everything else when using HTML Purifier in a production environment. 
-
-
----------------------------------------------------------------------------
-4. Configuration
-
-HTML Purifier is designed to run out-of-the-box, but occasionally HTML
-Purifier needs to be told what to do.  If you answered no to any of these
-questions, read on, otherwise, you can skip to the next section (or, if you're
-into configuring things just for the heck of it, skip to 4.3).
-
-* Am I using UTF-8?
-* Am I using XHTML 1.0 Transitional?
-
-If you answered no to any of these questions, instantiate a configuration
-object and read on:
-
-    $config = HTMLPurifier_Config::createDefault();
-
-
-4.1. Setting a different character encoding
-
-You really shouldn't use any other encoding except UTF-8, especially if you
-plan to support multilingual websites (read section three for more details).
-However, switching to UTF-8 is not always immediately feasible, so we can
-adapt.
-
-HTML Purifier uses iconv to support other character encodings, as such,
-any encoding that iconv supports <http://www.gnu.org/software/libiconv/>
-HTML Purifier supports with this code:
-
-    $config->set('Core', 'Encoding', /* put your encoding here */);
-
-An example usage for Latin-1 websites (the most common encoding for English
-websites):
-
-    $config->set('Core', 'Encoding', 'ISO-8859-1');
-
-Note that HTML Purifier's support for non-Unicode encodings is crippled by the
-fact that any character not supported by that encoding will be silently
-dropped, EVEN if it is ampersand escaped.  If you want to work around
-this, you are welcome to read docs/enduser-utf8.html for a fix,
-but please be cognizant of the issues the "solution" creates (for this
-reason, I do not include the solution in this document).
-
-
-4.2. Setting a different doctype
-
-For those of you using HTML 4.01 Transitional, you can disable
-XHTML output like this:
-
-    $config->set('HTML', 'Doctype', 'HTML 4.01 Transitional');
-
-Other supported doctypes include:
-
-    * HTML 4.01 Strict
-    * HTML 4.01 Transitional
-    * XHTML 1.0 Strict
-    * XHTML 1.0 Transitional
-    * XHTML 1.1
-
-
-4.3. Other settings
-
-There are more configuration directives which can be read about
-here: <http://htmlpurifier.org/live/configdoc/plain.html>  They're a bit boring,
-but they can help out for those of you who like to exert maximum control over
-your code.  Some of the more interesting ones are configurable at the
-demo <http://htmlpurifier.org/demo.php> and are well worth looking into
-for your own system.
-
-For example, you can fine tune allowed elements and attributes, convert
-relative URLs to absolute ones, and even autoparagraph input text! These
-are, respectively, %HTML.Allowed, %URI.MakeAbsolute and %URI.Base, and
-%AutoFormat.AutoParagraph. The %Namespace.Directive naming convention
-translates to:
-
-    $config->set('Namespace', 'Directive', $value);
-
-E.g.
-
-    $config->set('HTML', 'Allowed', 'p,b,a[href],i');
-    $config->set('URI', 'Base', 'http://www.example.com');
-    $config->set('URI', 'MakeAbsolute', true);
-    $config->set('AutoFormat', 'AutoParagraph', true);
-
-
----------------------------------------------------------------------------
-5. Caching
-
-HTML Purifier generates some cache files (generally one or two) to speed up
-its execution. For maximum performance, make sure that
-library/HTMLPurifier/DefinitionCache/Serializer is writeable by the webserver.
-
-If you are in the library/ folder of HTML Purifier, you can set the
-appropriate permissions using:
-
-    chmod -R 0755 HTMLPurifier/DefinitionCache/Serializer
-
-If the above command doesn't work, you may need to assign write permissions
-to all. This may be necessary if your webserver runs as nobody, but is
-not recommended since it means any other user can write files in the
-directory. Use:
-
-    chmod -R 0777 HTMLPurifier/DefinitionCache/Serializer
-
-You can also chmod files via your FTP client; this option
-is usually accessible by right clicking the corresponding directory and
-then selecting "chmod" or "file permissions".
-
-Starting with 2.0.1, HTML Purifier will generate friendly error messages
-that will tell you exactly what you have to chmod the directory to, if in doubt,
-follow its advice.
-
-If you are unable or unwilling to give write permissions to the cache
-directory, you can either disable the cache (and suffer a performance
-hit):
-
-    $config->set('Core', 'DefinitionCache', null);
-
-Or move the cache directory somewhere else (no trailing slash):
-
-    $config->set('Cache', 'SerializerPath', '/home/user/absolute/path');
-
-
----------------------------------------------------------------------------
-6.   Using the code
-
-The interface is mind-numbingly simple:
-
-    $purifier = new HTMLPurifier();
-    $clean_html = $purifier->purify( $dirty_html );
-
-...or, if you're using the configuration object:
-
-    $purifier = new HTMLPurifier($config);
-    $clean_html = $purifier->purify( $dirty_html );
-
-That's it!  For more examples, check out docs/examples/ (they aren't very
-different though).  Also, docs/enduser-slow.html gives advice on what to
-do if HTML Purifier is slowing down your application.
-
-
----------------------------------------------------------------------------
-7.   Quick install
-
-First, make sure library/HTMLPurifier/DefinitionCache/Serializer is
-writable by the webserver (see Section 5: Caching above for details).
-If your website is in UTF-8 and XHTML Transitional, use this code:
-
-<?php
-    require_once '/path/to/htmlpurifier/library/HTMLPurifier.auto.php';
-    
-    $purifier = new HTMLPurifier();
-    $clean_html = $purifier->purify($dirty_html);
-?>
-
-If your website is in a different encoding or doctype, use this code:
-
-<?php
-    require_once '/path/to/htmlpurifier/library/HTMLPurifier.auto.php';
-    
-    $config = HTMLPurifier_Config::createDefault();
-    $config->set('Core', 'Encoding', 'ISO-8859-1'); // replace with your encoding
-    $config->set('HTML', 'Doctype', 'HTML 4.01 Transitional'); // replace with your doctype
-    $purifier = new HTMLPurifier($config);
-    
-    $clean_html = $purifier->purify($dirty_html);
-?>
-

lib/htmlpurifier-3.0.0/INSTALL.fr.utf8

@@ -1,71 +0,0 @@
-
-Installation
-    Comment installer HTML Purifier
-
-Attention: Ce document a encode en UTF-8. Si les lettres avec les accents
-est essoreuse, prenez un mieux editeur de texte.
-
-À L'Aide: Je ne suis pas un diseur natif de français. Si vous trouvez une
-erreur dans ce document, racontez-moi! Merci.
-
-
-L'installation de HTML Purifier est trés simple, parce qu'il ne doit pas
-la configuration.  Dans le pied de de document, les utilisateurs
-impatient peuvent trouver le code, mais je recommande que vous lisez
-ce document pour quelques choses.
-
-
-1.  Compatibilité
-
-HTML Purifier fonctionne dans PHP 5. PHP 5.0.0 est le dernier
-version que je le testais.  Il ne dépend de les autre librairies.
-
-Les extensions optionnel est iconv (en général déjà installer) et 
-tidy (répandu aussi). Si vous utilisez UTF-8 et ne voulez pas
-l'indentation, vous pouvez utiliser HTML Purifier sans ces extensions.
-
-
-2.  Inclure la librarie
-
-Utilisez:
-
-    require_once '/path/to/library/HTMLPurifier.auto.php';
-
-...quand vous devez utiliser HTML Purifier (ne inclure pas quand vous
-ne devez pas, parce que HTML Purifier est trés grand.)
-
-Si vous n'aime pas que HTML Purifier change vos include_path, on peut
-change vos include_path, et:
-
-    require_once 'HTMLPurifier.php';
-
-Seuleument les contents dans library/ est essentiel; vous peut enlever
-les autre fichiers quand vous est dans une atmosphère professionnel.
-
-
-[En cours de construction]
-
-
-6.   Installation vite
-
-Si votre site web est en UTF-8 et XHTML Transitional, utilisez:
-
-<?php
-    require_once '/path/to/htmlpurifier/library/HTMLPurifier.auto.php';
-    
-    $purificateur = new HTMLPurifier();
-    $html_propre = $purificateur->purify($html_salle);
-?>
-
-Sinon, utilisez:
-
-<?php
-    require_once '/path/to/htmlpurifier/library/HTMLPurifier.auto.php';
-    
-    $config = HTMLPurifier_Config::createDefault();
-    $config->set('Core', 'Encoding', 'ISO-8859-1'); //remplacez avec votre encoding
-    $config->set('Core', 'XHTML', true); //remplacez avec false si HTML 4.01
-    $purificateur = new HTMLPurifier($config);
-    
-    $html_propre = $purificateur->purify($html_salle);
-?>

lib/htmlpurifier-3.0.0/NEWS

@@ -1,527 +0,0 @@
-NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier
-|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
-
-= KEY ====================
-    # Breaks back-compat
-    ! Feature
-    - Bugfix
-      + Sub-comment
-    . Internal change
-==========================
-
-3.0.0, released 2008-01-06
-# HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
-  until PHP 4 is completely deprecated, but no new features will be added
-  to it.
-  + Visibility declarations added
-  + Constructor methods renamed to __construct()
-  + PHP4 reference cruft removed (in progress)
-! CSS properties are now case-insensitive
-! DefinitionCacheFactory now can register new implementations
-! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
-  documents and cleaning their contents up. Requires the CSSTidy library
-  <http://csstidy.sourceforge.net/>. You can access the blocks with the
-  'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
-  The output CSS can also be "scoped" for a specific element, use:
-  %Filter.ExtractStyleBlocksScope
-! Experimental support for some proprietary CSS attributes allowed:
-  opacity (and all of the browser-specific equivalents) and scrollbar colors.
-  Enable by setting %CSS.Proprietary to true.
-- Colors missing # but in hex form will be corrected
-- CSS Number algorithm improved
-- Unit testing and multi-testing now on steroids: command lines,
-  XML output, and other goodies now added.
-. Unit tests for Injector improved
-. New classes:
-  + HTMLPurifier_AttrDef_CSS_AlphaValue
-  + HTMLPurifier_AttrDef_CSS_Filter
-. Multitest now has a file docblock
-
-2.1.3, released 2007-11-05
-! tests/multitest.php allows you to test multiple versions by running
-  tests/index.php through multiple interpreters using `phpv` shell
-  script (you must provide this script!)
-- Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
-  on some systems.
-- Injector algorithm further refined: off-by-one error regarding skip 
-  counts for dormant injectors fixed
-- Corrective blockquote definition now enabled for HTML 4.01 Strict
-- Fatal error when <img> tag (or any other element with required attributes)
-  has 'id' attribute fixed, thanks NykO18 for reporting
-- Fix warning emitted when a non-supported URI scheme is passed to the
-  MakeAbsolute URIFilter, thanks NykO18 (again)
-- Further refine AutoParagraph injector. Behavior inside of elements
-  allowing paragraph tags clarified: only inline content delimeted by
-  double newlines (not block elements) are paragraphed.
-- Buggy treatment of end tags of elements that have required attributes
-  fixed (does not manifest on default tag-set)
-- Spurious internal content reorganization error suppressed
-- HTMLDefinition->addElement now returns a reference to the created
-  element object, as implied by the documentation
-- Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
-- Fix a theoretical class of infinite loops from DirectLex reported
-  by Nate Abele
-- Work around unnecessary DOMElement type-cast in PH5P that caused errors
-  in PHP 5.1
-- Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
-  HTMLDefinition errors, this may indicate problems with error-collecting
-  facilities in PHP 5
-- Make ErrorCollectorEMock work in both PHP 4 and PHP 5
-- Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
-. %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment 
-  to better communicate its purpose
-. Error unit tests can now specify the expectation of no errors. Future
-  iterations of the harness will be extremely strict about what errors
-  are allowed
-. Extend Injector hooks to allow for more powerful injector routines
-. HTMLDefinition->addBlankElement created, as according to the HTMLModule
-  method
-. Doxygen configuration file updated, with minor improvements
-. Test runner now checks for similarly named files in conf/ directory too.
-. Minor cosmetic change to flush-definition-cache.php: trailing newline is
-  outputted
-. Maintenance script for generating PH5P patch added, original PH5P source
-  file also added under version control
-. Full unit test runner script title made more descriptive with PHP version
-. Updated INSTALL file to state that 4.3.7 is the earliest version we
-  are actively testing
-
-2.1.2, released 2007-09-03
-! Implemented Object module for trusted users
-! Implemented experimental HTML5 parsing mode using PH5P. To use, add
-  this to your code:
-        require_once 'HTMLPurifier/Lexer/PH5P.php';
-        $config->set('Core', 'LexerImpl', 'PH5P');
-  Note that this Lexer introduces some classes not in the HTMLPurifier
-  namespace.  Also, this is PHP5 only.
-! CSS property border-spacing implemented
-- Fix non-visible parsing error in DirectLex with empty tags that have
-  slashes inside attribute values.
-- Fix typo in CSS definition: border-collapse:seperate; was incorrectly
-  accepted as valid CSS. Usually non-visible, because this styling is the
-  default for tables in most browsers. Thanks Brett Zamir for pointing
-  this out.
-- Fix validation errors in configuration form
-- Hammer out a bunch of edge-case bugs in the standalone distribution
-- Inclusion reflection removed from URISchemeRegistry; you must manually
-  include any new schema files you wish to use
-- Numerous typo fixes in documentation thanks to Brett Zamir
-. Unit test refactoring for one logical test per test function
-. Config and context parameters in ComplexHarness deprecated: instead, edit
-  the $config and $context member variables
-. HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
-  really make a difference, but is good for completeness sake
-. merge-library.php script refactored for greater code reusability and
-  PHP4 compatibility
-
-2.1.1, released 2007-08-04
-- Fix show-stopper bug in %URI.MakeAbsolute functionality
-- Fix PHP4 syntax error in standalone version
-. Add prefix directory to include path for standalone, this prevents
-  other installations from clobbering the standalone's URI schemes
-. Single test methods can be invoked by prefixing with __only
-
-2.1.0, released 2007-08-02
-# flush-htmldefinition-cache.php superseded in favor of a generic
-  flush-definition-cache.php script, you can clear a specific cache
-  by passing its name as a parameter to the script
-! Phorum mod implemented for HTML Purifier
-! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
-  trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
-  for PHP4 (DirectLex).
-! Standalone file now available, which greatly reduces the amount of
-  includes (although there are still a few files that reside in the
-  standalone folder)
-! Relative URIs can now be transformed into their absolute equivalents
-  using %URI.Base and %URI.MakeAbsolute
-! Ruby implemented for XHTML 1.1
-! You can now define custom URI filtering behavior, see enduser-uri-filter.html
-  for more details
-! UTF-8 font names now supported in CSS
-- AutoFormatters emit friendly error messages if tags or attributes they
-  need are not allowed
-- ConfigForm's compactification of directive names is now configurable
-- AutoParagraph autoformatter algorithm refined after field-testing
-- XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
-  blockquote wrapping
-- Contents of <style> tags removed by default when tags are removed
-. HTMLPurifier_Config->getSerial() implemented, this is extremely useful
-  for output cache invalidation
-. ConfigForm printer now can retrieve CSS and JS files as strings, in
-  case HTML Purifier's directory is not publically accessible
-. Introduce new text/itext configuration directive values: these represent
-  longer strings that would be more appropriately edited with a textarea
-. Allow newlines to act as separators for lists, hashes, lookups and
-  %HTML.Allowed
-. ConfigForm generates textareas instead of text inputs for lists, hashes,
-  lookups, text and itext fields
-. Hidden element content removal genericized: %Core.HiddenElements can
-  be used to customize this behavior, by default <script> and <style> are
-  hidden
-. Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
-. Custom ChildDef added to default include list
-. URIScheme reflection improved: will not attempt to include file if class
-  already exists. May clobber autoload, so I need to keep an eye on it
-. ConfigSchema heavily optimized, will only collect information and validate
-  definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
-. AttrDef_URI unit tests and implementation refactored
-. benchmarks/ directory now protected from public view with .htaccess file;
-  run the tests via command line
-. URI scheme is munged off if there is no authority and the scheme is the
-  default one
-. All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
-. Interface for URIScheme changed
-. Generic URI object to hold components of URI added, most systems involved
-  in URI validation have been migrated to use it
-. Custom filtering for URIs factored out to URIDefinition interface for
-  maximum extensibility
-
-2.0.1, released 2007-06-27
-! Tag auto-closing now based on a ChildDef heuristic rather than a
-  manually set auto_close array; some behavior may change
-! Experimental AutoFormat functionality added: auto-paragraph and
-  linkify your HTML input by setting %AutoFormat.AutoParagraph and
-  %AutoFormat.Linkify to true
-! Newlines normalized internally, and then converted back to the
-  value of PHP_EOL. If this is not desired, set your newline format
-  using %Output.Newline.
-! Beta error collection, messages are implemented for the most generic
-  cases involving Lexing or Strategies
-- Clean up special case code for <script> tags
-- Reorder includes for DefinitionCache decorators, fixes a possible
-  missing class error
-- Fixed bug where manually modified definitions were not saved via cache
-  (mostly harmless, except for the fact that it would be a little slower)
-- Configuration objects with different serials do not clobber each
-  others when revision numbers are unequal
-- Improve Serializer DefinitionCache directory permissions checks
-- DefinitionCache no longer throws errors when it encounters old
-  serial files that do not conform to the current style
-- Stray xmlns attributes removed from configuration documentation
-- configForm.php smoketest no longer has XSS vulnerability due to
-  unescaped print_r output
-- Printer adheres to configuration's directives on output format
-- Fix improperly named form field in ConfigForm printer
-. Rewire some test-cases to swallow errors rather than expect them
-. HTMLDefinition printer updated with some of the new attributes
-. DefinitionCache keys reordered to reflect precedence: version number,
-  hash, then revision number
-. %Core.DefinitionCache renamed to %Cache.DefinitionImpl
-. Interlinking in configuration documentation added using
-  Injector_PurifierLinkify
-. Directives now keep track of aliases to themselves
-. Error collector now requires a severity to be passed, use PHP's internal
-  error constants for this
-. HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
-  much easier selective embedding of configuration values
-. Doctype objects now accept public and system DTD identifiers
-. %HTML.Doctype is now constrained by specific values, to specify a custom
-  doctype use new %HTML.CustomDoctype
-. ConfigForm truncates long directives to keep the form small, and does
-  not re-output namespaces
-
-2.0.0, released 2007-06-20
-# Completely refactored HTMLModuleManager, decentralizing safety
-  information
-# Transform modules changed to Tidy modules, which offer more flexibility
-  and better modularization
-# Configuration object now finalizes itself when a read operation is
-  performed on it, ensuring that its internal state stays consistent.
-  To revert this behavior, you can set the $autoFinalize member variable 
-  off, but it's not recommended.
-# New compact syntax for AttrDef objects that can be used to instantiate
-  new objects via make()
-# Definitions (esp. HTMLDefinition) are now cached for a significant
-  performance boost. You can disable caching by setting %Core.DefinitionCache
-  to null. You CANNOT edit raw definitions without setting the corresponding
-  DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
-# Contents between <script> tags are now completely removed if <script>
-  is not allowed
-# Prototype-declarations for Lexer removed in favor of configuration
-  determination of Lexer implementations.
-! HTML Purifier now works in PHP 4.3.2.
-! Configuration form-editing API makes tweaking HTMLPurifier_Config a
-  breeze!
-! Configuration directives that accept hashes now allow new string
-  format: key1:value1,key2:value2
-! ConfigDoc now factored into OOP design
-! All deprecated elements now natively supported
-! Implement TinyMCE styled whitelist specification format in
-  %HTML.Allowed
-! Config object gives more friendly error messages when things go wrong
-! Advanced API implemented: easy functions for creating elements (addElement)
-  and attributes (addAttribute) on HTMLDefinition
-! Add native support for required attributes
-- Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
-- DOMLex will not emit errors when a custom error handler that does not
-  honor error_reporting is used
-- StrictBlockquote child definition refrains from wrapping whitespace
-  in tags now.
-- Bug resulting from tag transforms to non-allowed elements fixed
-- ChildDef_Custom's regex generation has been improved, removing several
-  false positives
-. Unit test for ElementDef created, ElementDef behavior modified to
-  be more flexible
-. Added convenience functions for HTMLModule constructors
-. AttrTypes now has accessor functions that should be used instead
-  of directly manipulating info
-. TagTransform_Center deprecated in favor of generic TagTransform_Simple
-. Add extra protection in AttrDef_URI against phantom Schemes
-. Doctype object added to HTMLDefinition which describes certain aspects
-  of the operational document type
-. Lexer is now pre-emptively included, with a conditional include for the
-  PHP5 only version.
-. HTMLDefinition and CSSDefinition have a common parent class: Definition.
-. DirectLex can now track line-numbers
-. Preliminary error collector is in place, although no code actually reports
-  errors yet
-. Factor out most of ValidateAttributes to new AttrValidator class
-
-1.6.1, released 2007-05-05
-! Support for more deprecated attributes via transformations:
-  + hspace and vspace in img
-  + size and noshade in hr
-  + nowrap in td
-  + clear in br
-  + align in caption, table, img and hr
-  + type in ul, ol and li
-! DirectLex now preserves text in which a < bracket is followed by
-  a non-alphanumeric character. This means that certain emoticons
-  are now preserved.
-! %Core.RemoveInvalidImg is now operational, when set to false invalid
-  images will hang around with an empty src
-! target attribute in a tag supported, use %Attr.AllowedFrameTargets
-  to enable
-! CSS property white-space now allows nowrap (supported in all modern
-  browsers) but not others (which have spotty browser implementations)
-! XHTML 1.1 mode now sort-of works without any fatal errors, and
-  lang is now moved over to xml:lang.
-! Attribute transformation smoketest available at smoketests/attrTransform.php
-! Transformation of font's size attribute now handles super-large numbers
-- Possibly fatal bug with __autoload() fixed in module manager
-- Invert HTMLModuleManager->addModule() processing order to check
-  prefixes first and then the literal module
-- Empty strings get converted to empty arrays instead of arrays with
-  an empty string in them.
-- Merging in attribute lists now works.
-. Demo script removed: it has been added to the website's repository
-. Basic.php script modified to work out of the box
-. Refactor AttrTransform classes to reduce duplication
-. AttrTransform_TextAlign axed in favor of a more general
-  AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
-  see how the new equivalent is implemented
-. Unit tests now use exclusively assertIdentical
- 
-1.6.0, released 2007-04-01
-! Support for most common deprecated attributes via transformations:
-  + bgcolor in td, th, tr and table
-  + border in img
-  + name in a and img
-  + width in td, th and hr
-  + height in td, th
-! Support for CSS attribute 'height' added
-! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
-  and %Attr.AllowedRev to activate
-- You can define ID blacklists using regular expressions via
-  %Attr.IDBlacklistRegexp
-- Error messages are emitted when you attempt to "allow" elements or
-  attributes that HTML Purifier does not support
-- Fix segfault in unit test. The problem is not very reproduceable and
-  I don't know what causes it, but a six line patch fixed it.
-
-1.5.0, released 2007-03-23
-! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
-  doesn't actually do anything yet, but keep your eyes peeled.
-! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
-! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
-  I am loathe to release beta quality APIs, but this is exactly that;
-  don't use the internal interfaces if you're not willing to do migration
-  later on.
-- Allow 'x' subtag in language codes
-- Fixed buggy chameleon-support for ins and del
-. Added support for IDREF attributes (i.e. for)
-. Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
-. Removed context variable ParentType, replaced with IsInline, which
-  is false when you're not inline and an integer of the parent that
-  caused you to become inline when you are (so possibly zero)
-. Removed ElementDef->type in favor of ElementDef->descendants_are_inline
-  and HTMLDefinition->content_sets
-. StrictBlockquote now reports what elements its supposed to allow,
-  rather than what it does allow
-. Removed HTMLDefinition->info_flow_elements in favor of
-  HTMLDefinition->content_sets['Flow']
-. Removed redundant "exclusionary" definitions from DTD roster
-. StrictBlockquote now requires a construction parameter as if it
-  were an Required ChildDef, this is the "real" set of allowed elements
-. AttrDef partitioned into HTML, CSS and URI segments
-. Modify Youtube filter regexp to be multiline
-. Require both PHP5 and DOM extension in order to use DOMLex, fixes
-  some edge cases where a DOMDocument class exists in a PHP4 environment
-  due to DOM XML extension.
-
-1.4.1, released 2007-01-21
-! docs/enduser-youtube.html updated according to new functionality
-- YouTube IDs can have underscores and dashes
-
-1.4.0, released 2007-01-21
-! Implemented list-style-image, URIs now allowed in list-style
-! Implemented background-image, background-repeat, background-attachment
-  and background-position CSS properties. Shorthand property background
-  supports all of these properties.
-! Configuration documentation looks nicer
-! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
-  characters while %Core.Encoding is set to a non-UTF-8 encoding.
-! Support for configuration directive aliases added
-! Config object can now be instantiated from ini files
-! YouTube preservation code added to the core, with two lines of code
-  you can add it as a filter to your code. See smoketests/preserveYouTube.php
-  for sample code.
-! Moved SLOW to docs/enduser-slow.html and added code examples
-- Replaced version check with functionality check for DOM (thanks Stephen
-  Khoo)
-. Added smoketest 'all.php', which loads all other smoketests via frames
-. Implemented AttrDef_CSSURI for url(http://google.com) style declarations
-. Added convenient single test selector form on test runner
-
-1.3.2, released 2006-12-25
-! HTMLPurifier object now accepts configuration arrays, no need to manually
-  instantiate a configuration object
-! Context object now accessible to outside
-! Added enduser-youtube.html, explains how to embed YouTube videos. See
-  also corresponding smoketest preserveYouTube.php.
-! Added purifyArray(), which takes a list of HTML and purifies it all
-! Added static member variable $version to HTML Purifier with PHP-compatible
-  version number string.
-- Fixed fatal error thrown by upper-cased language attributes
-- printDefinition.php: added labels, added better clarification
-. HTMLPurifier_Config::create() added, takes mixed variable and converts into
-  a HTMLPurifier_Config object.
-
-1.3.1, released 2006-12-06
-! Added HTMLPurifier.func.php stub for a convenient function to call the library
-- Fixed bug in RemoveInvalidImg code that caused all images to be dropped
-  (thanks to .mario for reporting this)
-. Standardized all attribute handling variables to attr, made it plural
-
-1.3.0, released 2006-11-26
-# Invalid images are now removed, rather than replaced with a dud
-  <img src="" alt="Invalid image" />. Previous behavior can be restored
-  with new directive %Core.RemoveInvalidImg set to false.
-! (X)HTML Strict now supported
-  + Transparently handles inline elements in block context (blockquote)
-! Added GET method to demo for easier validation, added 50kb max input size
-! New directive %HTML.BlockWrapper, for block-ifying inline elements
-! New directive %HTML.Parent, allows you to only allow inline content
-! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
-  users narrow the set of allowed tags
-! <li value="4"> and <ul start="2"> now allowed in loose mode
-! New directives %URI.DisableExternalResources and %URI.DisableResources
-! New directive %Attr.DisableURI, which eliminates all hyperlinking
-! New directive %URI.Munge, munges URI so you can use some sort of redirector
-  service to avoid PageRank leaks or warn users that they are exiting your site.
-! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
-  the configuration settings and see how the internal rules are affected.
-! New directive %URI.HostBlacklist for blocking links to bad hosts.
-  xssAttacks.php smoketest updated accordingly.
-- Added missing type to ChildDef_Chameleon
-- Remove Tidy option from demo if there is not Tidy available
-. ChildDef_Required guards against empty tags
-. Lookup table HTMLDefinition->info_flow_elements added
-. Added peace-of-mind variable initialization to Strategy_FixNesting
-. Added HTMLPurifier->info_parent_def, parent child processing made special
-. Added internal documents briefly summarizing future progression of HTML
-. HTMLPurifier_Config->getBatch($namespace) added
-. More lenient casting to bool from string in HTMLPurifier_ConfigSchema
-. Refactored ChildDef classes into their own files
-
-1.2.0, released 2006-11-19
-# ID attributes now disabled by default. New directives:
-  + %HTML.EnableAttrID - restores old behavior by allowing IDs
-  + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
-    so that they don't collide with your IDs
-  + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
-    instances of user content on the page
-  + Profuse documentation on how to use these available in docs/enduser-id.txt
-! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
-! Added percent encoding normalization
-! XSS attacks smoketest given facelift
-! Configuration documentation now has table of contents
-! Added %URI.DisableExternal, which prevents links to external websites.  You
-  can also use %URI.Host to permit absolute linking to subdomains
-! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
-- Type variable in HTMLDefinition was not being set properly, fixed
-- Documentation updated
-  + TODO added request Phalanger
-  + TODO added request Native compression
-  + TODO added request Remove redundant tags
-  + TODO added possible plaintext formatter for HTML Purifier documentation
-  + Updated ConfigDoc TODO
-  + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
-    and AttrDef/Host.php
-  + Revamped documentation into HTML, along with misc updates
-- HTMLPurifier_Context doesn't throw a variable reference error if you attempt
-  to retrieve a non-existent variable
-. Switched to purify()-wide Context object registry
-. Refactored unit tests to minimize duplication
-. XSS attack sheet updated
-. configdoc.xml now has xml:space attached to default value nodes
-. Allow configuration directives to permit null values
-. Cleaned up test-cases to remove unnecessary swallowErrors()
-
-1.1.2, released 2006-09-30
-! Add HTMLPurifier.auto.php stub file that configures include_path
-- Documentation updated
-  + INSTALL document rewritten
-  + TODO added semi-lossy conversion
-  + API Doxygen docs' file exclusions updated
-  + Added notes on HTML versus XML attribute whitespace handling
-  + Noted that HTMLPurifier_ChildDef_Custom isn't being used
-  + Noted that config object's definitions are cached versions
-- Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
-- ftp:// URIs now have their typecodes checked
-- Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
-. Line endings standardized throughout project (svn:eol-style standardized)
-. Refactored parseData() to general Lexer class
-. Tester named "HTML Purifier" not "HTMLPurifier"
-
-1.1.1, released 2006-09-24
-! Configuration option to optionally Tidy up output for indentation to make up
-  for dropped whitespace by DOMLex (pretty-printing for the entire application
-  should be done by a page-wide Tidy)
-- Various documentation updates
-- Fixed parse error in configuration documentation script
-- Fixed fatal error in benchmark scripts, slightly augmented
-- As far as possible, whitespace is preserved in-between table children
-- Sample test-settings.php file included
-
-1.1.0, released 2006-09-16
-! Directive documentation generation using XSLT
-! XHTML can now be turned off, output becomes <br>
-- Made URI validator more forgiving: will ignore leading and trailing
-  quotes, apostrophes and less than or greater than signs.
-- Enforce alphanumeric namespace and directive names for configuration.
-- Table child definition made more flexible, will fix up poorly ordered elements
-. Renamed ConfigDef to ConfigSchema
-
-1.0.1, released 2006-09-04
-- Fixed slight bug in DOMLex attribute parsing
-- Fixed rejection of case-insensitive configuration values when there is a
-  set of allowed values.  This manifested in %Core.Encoding.
-- Fixed rejection of inline style declarations that had lots of extra
-  space in them.  This manifested in TinyMCE.
-
-1.0.0, released 2006-09-01
-! Shorthand CSS properties implemented: font, border, background, list-style
-! Basic color keywords translated into hexadecimal values
-! Table CSS properties implemented
-! Support for charsets other than UTF-8 (defined by iconv)
-! Malformed UTF-8 and non-SGML character detection and cleaning implemented
-- Fixed broken numeric entity conversion
-- API documentation completed
-. (HTML|CSS)Definition de-singleton-ized
-
-1.0.0beta, released 2006-08-16
-! First public release, most functionality implemented. Notable omissions are:
-  + Shorthand CSS properties
-  + Table CSS properties
-  + Deprecated attribute transformations

lib/htmlpurifier-3.0.0/README

@@ -1,22 +0,0 @@
-
-README
-    All about HTML Purifier
-
-HTML Purifier is an HTML filtering solution that uses a unique combination 
-of robust whitelists and agressive parsing to ensure that not only are 
-XSS attacks thwarted, but the resulting HTML is standards compliant. 
-
-HTML Purifier is oriented towards richly formatted documents from 
-untrusted sources that require CSS and a full tag-set.  This library can 
-be configured to accept a more restrictive set of tags, but it won't be 
-as efficient as more bare-bones parsers. It will, however, do the job 
-right, which may be more important. 
-
-Places to go:
-
-* See INSTALL for a quick installation guide
-* See docs/ for developer-oriented documentation, code examples and
-  an in-depth installation guide.
-* See WYSIWYG for information on editors like TinyMCE and FCKeditor
-
-HTML Purifier can be found on the web at: http://htmlpurifier.org/

lib/htmlpurifier-3.0.0/TODO

@@ -1,98 +0,0 @@
-
-TODO List
-
-= KEY ====================
-    # Flagship
-    - Regular
-    ? Maybe I'll Do It
-==========================
-
-If no interest is expressed for a feature that may required a considerable
-amount of effort to implement, it may get endlessly delayed. Do not be
-afraid to cast your vote for the next feature to be implemented!
-
-3.1 release [Error'ed]
- # Error logging for filtering/cleanup procedures
- - XSS-attempt detection
-
-3.2 release [Do What I Mean, Not What I Say]
- # Additional support for poorly written HTML
-    - Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!)
-    - Friendly strict handling of <address> (block -> <br>)
- - Remove redundant tags, ex. <u><u>Underlined</u></u>. Implementation notes:
-    1. Analyzing which tags to remove duplicants
-    2. Ensure attributes are merged into the parent tag
-    3. Extend the tag exclusion system to specify whether or not the
-    contents should be dropped or not (currently, there's code that could do
-    something like this if it didn't drop the inner text too.)
- - Remove <span> tags that don't do anything (no attributes)
- - Remove empty inline tags<i></i>
- - Append something to duplicate IDs so they're still usable (impl. note: the
-   dupe detector would also need to detect the suffix as well)
- - Externalize inline CSS to promote clean HTML
-
-3.3 release [It's All About Trust] (floating)
- # Implement untrusted, dangerous elements/attributes
- # Implement IDREF support (harder than it seems, since you cannot have
-   IDREFs to non-existent IDs)
- # Frameset XHTML 1.0 and HTML 4.01 doctypes
-
-4.0 release [Beyond HTML]
- # Legit token based CSS parsing (will require revamping almost every
-   AttrDef class). Probably will use CSSTidy class
- # More control over allowed CSS properties (maybe modularize it in the
-   same fashion!)
- - Standardize token armor for all areas of processing
- - Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand.
-   Also, enable disabling of directionality
- - Table of Contents generation (XHTML Compiler might be reusable)
-
-5.0 release [To XML and Beyond]
- - Extended HTML capabilities based on namespacing and tag transforms (COMPLEX)
-    - Hooks for adding custom processors to custom namespaced tags and
-      attributes, offer default implementation
-    - Lots of documentation and samples
-
-Ongoing
- - More refactoring to take advantage of PHP5's facilities 
- - Lots of profiling, make it faster!
- - Plugins for major CMSes (COMPLEX)
-    - phpBB
-    - more! (look for ones that use WYSIWYGs)
- - Complete basic smoketests
-
-AutoFormat
- - Smileys
- - Syntax highlighting with <pre> and possibly <?php
- - Look at http://drupal.org/project/Modules/category/63 for ideas
-
-Unknown release (on a scratch-an-itch basis)
- # CHMOD install script for PEAR installs
- ? Have 'lang' attribute be checked against official lists, achieved by
-   encoding all characters that have string entity equivalents
- - Abstract ChildDef_BlockQuote to work with all elements that only
-   allow blocks in them, required or optional
- - Reorganize Unit Tests
- - Advanced URI filtering schemes (see docs/proposal-new-directives.txt)
- - Implement lenient <ruby> child validation
- - Explain how to use HTML Purifier in non-PHP languages / create
-   a simple command line stub (or complicated?)
- - Fixes for Firefox's inability to handle COL alignment props (Bug 915)
- - Automatically add non-breaking spaces to empty table cells when
-   empty-cells:show is applied to have compatibility with Internet Explorer
- - Distinguish between default settings and explicitly set settings, so
-   configurations can be merged
- - Nested configuration namespaces
- - Allow scoped="scoped" attribute in <style> tags; may be troublesome
-   because regular CSS has no way of uniquely identifying nodes, so we'd
-   have to generate IDs
-
-Requested
-
-Wontfix
- - Non-lossy smart alternate character encoding transformations (unless
-   patch provided)
- - Pretty-printing HTML: users can use Tidy on the output on entire page
- - Native content compression, whitespace stripping (don't rely on Tidy, make
-   sure we don't remove from <pre> or related tags): use gzip if this is
-   really important

lib/htmlpurifier-3.0.0/VERSION

@@ -1 +0,0 @@
-3.0.0

lib/htmlpurifier-3.0.0/WHATSNEW

@@ -1,10 +0,0 @@
-Release 3.0.0 is the first release of 2008 and also HTML Purifier's first
-PHP 5 only release. The 2.1 series will still be supported for bug and
-security fixes, but will not get new features. This release a number of
-improvements in CSS handling, including the filter
-HTMLPurifier_Filter_ExtractStyleBlocks which integrates HTML Purifier with
-CSSTidy for cleaning style sheets, contains experimental support for
-proprietary CSS properties with %CSS.Proprietary, case-insensitive
-CSS properties, and more lenient hexadecimal color codes. Also, all code
-has been upgraded to full PHP 5 which is E_STRICT clean for all versions
-of PHP 5 (including the 5.0 series).

lib/htmlpurifier-3.0.0/WYSIWYG

@@ -1,18 +0,0 @@
-
-WYSIWYG - What You See Is What You Get
-    HTML Purifier: A Pretty Good Fit for TinyMCE and FCKeditor
-
-Javascript-based WYSIWYG editors, simply stated, are quite amazing.  But I've
-always been wary about using them due to security issues: they handle the
-client-side magic, but once you've been served a piping hot load of unfiltered
-HTML, what should be done then?  In some situations, you can serve it uncleaned,
-since you only offer these facilities to trusted(?) authors.
-
-Unfortunantely, for blog comments and anonymous input, BBCode, Textile and
-other markup languages still reign supreme.  Put simply: filtering HTML is
-hard work, and these WYSIWYG authors don't offer anything to alleviate that
-trouble.  Therein lies the solution:
-
-HTML Purifier is perfect for filtering pure-HTML input from WYSIWYG editors.
-
-Enough said.

lib/htmlpurifier-3.0.0/art/icon-16x16.svg

@@ -1,101 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
-<svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://web.resource.org/cc/"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://inkscape.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="16.000000px"
-   height="16.000000px"
-   id="svg2"
-   sodipodi:version="0.32"
-   inkscape:version="0.42.2"
-   sodipodi:docbase="C:\DOCUME~1\Edward\MYDOCU~1\MYWEBS~1\HTMLPU~1\art"
-   sodipodi:docname="ICON-1~1.SVG"
-   inkscape:export-filename="C:\Documents and Settings\Edward\My Documents\My Webs\htmlpurifier\art\icon.png"
-   inkscape:export-xdpi="90.000000"
-   inkscape:export-ydpi="90.000000">
-  <defs
-     id="defs4">
-    <linearGradient
-       id="linearGradient5003">
-      <stop
-         style="stop-color:#537ddd;stop-opacity:1.0000000;"
-         offset="0.00000000"
-         id="stop5005" />
-      <stop
-         style="stop-color:#000000;stop-opacity:1.0000000;"
-         offset="1.0000000"
-         id="stop5007" />
-    </linearGradient>
-    <linearGradient
-       id="linearGradient4993">
-      <stop
-         style="stop-color:#183577;stop-opacity:1.0000000;"
-         offset="0.00000000"
-         id="stop4995" />
-      <stop
-         id="stop5001"
-         offset="0.58142859"
-         style="stop-color:#8b9fbb;stop-opacity:1.0000000;" />
-      <stop
-         style="stop-color:#ffffff;stop-opacity:1.0000000;"
-         offset="1.0000000"
-         id="stop4997" />
-    </linearGradient>
-  </defs>
-  <sodipodi:namedview
-     id="base"
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1.0"
-     inkscape:pageopacity="0.0"
-     inkscape:pageshadow="2"
-     inkscape:zoom="23.255956"
-     inkscape:cx="3.2274095"
-     inkscape:cy="4.1487021"
-     inkscape:document-units="px"
-     inkscape:current-layer="layer1"
-     showgrid="false"
-     showguides="false"
-     gridspacingy="0.50000000cm"
-     gridspacingx="0.50000000cm"
-     gridoriginy="0.00000000cm"
-     gridoriginx="0.00000000cm"
-     gridtolerance="0.10000000cm"
-     gridempspacing="2"
-     inkscape:grid-points="true"
-     inkscape:grid-bbox="false"
-     inkscape:window-width="975"
-     inkscape:window-height="759"
-     inkscape:window-x="130"
-     inkscape:window-y="129" />
-  <metadata
-     id="metadata7">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <g
-     inkscape:label="Layer 1"
-     inkscape:groupmode="layer"
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lib/htmlpurifier-3.0.0/art/icon-32x32.svg

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lib/htmlpurifier-3.0.0/art/logo.svg

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lib/htmlpurifier-3.0.0/benchmarks/.htaccess

@@ -1 +0,0 @@
-Deny from all

lib/htmlpurifier-3.0.0/benchmarks/Lexer.php

@@ -1,155 +0,0 @@
-<?php
-
-require_once '../library/HTMLPurifier.auto.php';
-@include_once '../test-settings.php';
-
-// PEAR
-require_once 'Benchmark/Timer.php'; // to do the timing
-require_once 'Text/Password.php'; // for generating random input
-
-$LEXERS = array();
-$RUNS = isset($GLOBALS['HTMLPurifierTest']['Runs'])
-    ? $GLOBALS['HTMLPurifierTest']['Runs'] : 2; 
-
-require_once 'HTMLPurifier/Lexer/DirectLex.php';
-$LEXERS['DirectLex'] = new HTMLPurifier_Lexer_DirectLex();
-
-if (version_compare(PHP_VERSION, '5', '>=')) {
-    require_once 'HTMLPurifier/Lexer/DOMLex.php';
-    $LEXERS['DOMLex'] = new HTMLPurifier_Lexer_DOMLex();
-}
-
-// custom class to aid unit testing
-class RowTimer extends Benchmark_Timer
-{
-    
-    var $name;
-    
-    function RowTimer($name, $auto = false) {
-        $this->name = htmlentities($name);
-        $this->Benchmark_Timer($auto);
-    }
-    
-    function getOutput() {
-
-        $total  = $this->TimeElapsed();
-        $result = $this->getProfiling();
-        $dashes = '';
-        
-        $out = '<tr>';
-        
-        $out .= "<td>{$this->name}</td>";
-        
-        $standard = false;
-        
-        foreach ($result as $k => $v) {
-            if ($v['name'] == 'Start' || $v['name'] == 'Stop') continue;
-            
-            //$perc = (($v['diff'] * 100) / $total);
-            //$tperc = (($v['total'] * 100) / $total);
-            
-            //$out .= '<td align="right">' . $v['diff'] . '</td>';
-            
-            if ($standard == false) $standard = $v['diff'];
-            
-            $perc = $v['diff'] * 100 / $standard;
-            $bad_run = ($v['diff'] < 0);
-            
-            $out .= '<td align="right"'.
-                   ($bad_run ? ' style="color:#AAA;"' : '').
-                   '>' . number_format($perc, 2, '.', '') .
-                   '%</td><td>'.number_format($v['diff'],4,'.','').'</td>';
-            
-        }
-        
-        $out .= '</tr>';
-        
-        return $out;
-    }
-}
-
-function print_lexers() {
-    global $LEXERS;
-    $first = true;
-    foreach ($LEXERS as $key => $value) {
-        if (!$first) echo ' / ';
-        echo htmlspecialchars($key);
-        $first = false;
-    }
-}
-
-function do_benchmark($name, $document) {
-    global $LEXERS, $RUNS;
-    
-    $config = HTMLPurifier_Config::createDefault();
-    $context = new HTMLPurifier_Context();
-    
-    $timer = new RowTimer($name);
-    $timer->start();
-    
-    foreach($LEXERS as $key => $lexer) {
-        for ($i=0; $i<$RUNS; $i++) $tokens = $lexer->tokenizeHTML($document, $config, $context);
-        $timer->setMarker($key);
-    }
-    
-    $timer->stop();
-    $timer->display();
-}
-
-?>
-<html>
-<head>
-<title>Benchmark: <?php print_lexers(); ?></title>
-</head>
-<body>
-<h1>Benchmark: <?php print_lexers(); ?></h1>
-<table border="1">
-<tr><th>Case</th><?php
-foreach ($LEXERS as $key => $value) {
-    echo '<th colspan="2">' . htmlspecialchars($key) . '</th>';
-}
-?></tr>
-<?php
-
-// ************************************************************************** //
-
-// sample of html pages
-
-$dir = 'samples/Lexer';
-$dh  = opendir($dir);
-while (false !== ($filename = readdir($dh))) {
-    
-    if (strpos($filename, '.html') !== strlen($filename) - 5) continue;
-    $document = file_get_contents($dir . '/' . $filename);
-    do_benchmark("File: $filename", $document);
-    
-}
-
-// crashers, caused infinite loops before
-
-$snippets = array();
-$snippets[] = '<a href="foo>';
-$snippets[] = '<a "=>';
-
-foreach ($snippets as $snippet) {
-    do_benchmark($snippet, $snippet);
-}
-
-// random input
-
-$random = Text_Password::create(80, 'unpronounceable', 'qwerty <>="\'');
-
-do_benchmark('Random input', $random);
-
-?></table>
-
-<?php
-
-echo '<div>Random input was: ' .
-  '<span colspan="4" style="font-family:monospace;">' .
-  htmlspecialchars($random) . '</span></div>';
-
-?>
-
-
-</body></html>

lib/htmlpurifier-3.0.0/benchmarks/Trace.php

@@ -1,19 +0,0 @@
-<?php
-
-ini_set('xdebug.trace_format', 1);
-ini_set('xdebug.show_mem_delta', true);
-
-if (file_exists('Trace.xt')) {
-    echo "Previous trace Trace.xt must be removed before this script can be run.";
-    exit;
-}
-
-xdebug_start_trace(dirname(__FILE__) . '/Trace');
-require_once '../library/HTMLPurifier.auto.php';
-
-$purifier = new HTMLPurifier();
-
-$data = $purifier->purify(file_get_contents('samples/Lexer/4.html'));
-xdebug_stop_trace();
-
-echo "Trace finished.";

lib/htmlpurifier-3.0.0/benchmarks/samples/Lexer/1.html

@@ -1,53 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html>
-<head>
-    <title>Main Page - Huaxia Taiji Club</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <link rel="stylesheet" type="text/css" media="screen, projection" href="/screen.css" />
-    <link rel="stylesheet" type="text/css" media="print" href="/print.css" />
-</head>
-<body>
-
-<div id="translation"><a href="/ch/Main_Page">&#20013;&#25991;</a></div>
-
-<div id="heading"><a href="/en/Main_Page" title="English Main Page">Huaxia Taiji Club</a>
-  <a class="heading_ch" href="/ch/Main_Page" title="&#20013;&#25991;&#20027;&#39029;">&#21326;&#22799;&#22826;&#26497;&#20465;&#20048;&#37096;</a></div>
-<ul id="menu">
-    <li><a href="/en/Main_Page" class="active">Main Page</a></li><li><a href="/en/About">About</a></li><li><a href="/en/News">News</a></li><li><a href="/en/Events">Events</a></li><li><a href="/en/Digest">Digest</a></li><li><a href="/en/Taiji_and_I">Taiji and I</a></li><li><a href="/en/Downloads">Downloads</a></li><li><a href="/en/Registration">Registration</a></li><li><a href="/en/Contact">Contact</a></li>    <li><a href="http://www.taijiclub.org/gallery2/main.php">Gallery</a></li>
-
-    <li><a href="http://www.taijiclub.org/forums/index.php">Forums</a></li>
-
-</ul>
-<div id="content">
-<h1 id="title">Main Page</h1><h2>Taiji (Tai Chi) </h2>
-
-<div id="sidebar">
-<h3>Recent News</h3>
-<ul>
- <li>Zou Xiaojun was elected as the new club vice president </li>
-
- <li>HX Edison Taiji Club <a href="http://www.taijiclub.org/downloads/Taiji_club_regulation_.pdf">by-law</a>  effective 3/28/2006</li>
- <li>A new email account for our club: HXEdisontaijiclub@yahoo.com</li>
- 
- <li>Workshop conducted by <a href="http://www.taijiclub.org/ch/Digest/LiDeyin">?????</a> Li Deyin is set on June 4, 2006 at Clarion Hotel in Edison from 9:30am-12pm; <a href="http://www.taijiclub.org/en/Registration">Registration</a></li>
-
-</ul>
-</div>
-
-
-
-<p><i>Taiji</i> is an ancient Chinese tradition of movement systems that is associated with philosophy, physiology, psychology, geometry and dynamics. It is the slowest form of martial arts and is meant to improve the internal spirit.   It is soothing to the soul and extremely invigorating. </p> 
-
-<p>The founder of Taiji was Zhang Sanfeng (Chang San-feng), who was a monk of the Wu Dang (Wu Tang) Monastery and lived in the period from 1391 to 1459. His exercises stressed suppleness and elasticity as opposed to the hardness and force of other martial art styles. Several centuries old, Taiji was originally developed as a form of self-defense, emphasizing strength, balance, flexibility and speed. Tai Chi also differs from other martial arts in that it is based on the Taoist religion and aims to avoid aggressive forces. </p>
-
-<p>Modern Taiji includes many forms &mdash; Quan, Sword and Fan. Impacting the mind and body of the practitioners, Taiji is practiced as a meditative exercise made up of a series of forms, or choreographed motions, requiring slow, gentle movement of the arms, legs and torso. Taiji practitioners learn to center their attention on their breathing and body movements so that the exercise strengthens their overall mental and physical awareness. In a sense, Taiji is similar to yoga in that it is also a form of moving meditation, with the goal of achieving stillness through the motion and awareness of breath. To perform Taiji, practitioners have to empty their mind of thoughts and worries in order to achieve harmony. It is a great aid for reducing stress and improving the quality of life. </p>
-
-<p>In China and in communities all over the world, Taiji is practiced by young and old in the early morning hours. It's a great way to bring a new and fresh day!</p>
-
-<p>Check out our <a href="/gallery2/main.php">gallery</a>.</p>
-
-<div style="text-align:center;"><a href="http://www.taijiclub.org/gallery2/v/2006/group1b.jpg.html?g2_imageViewsIndex=1"><img src="/gallery2/d/1836-2/group1b.jpg" /></a></div>
-
-<div style="text-align:center;">Click on photo to see HR version</div></div>
-</body>
-</html>

lib/htmlpurifier-3.0.0/benchmarks/samples/Lexer/2.html

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lib/htmlpurifier-3.0.0/benchmarks/samples/Lexer/3.html

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-      <p>Welcome to the <b>Anime Digi-Lib</b>, a virtual index to anime on the 
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@@ -1,540 +0,0 @@
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-		<meta name="keywords" content="Tai Chi Chuan,Yang Pan-hou,Yang Chien-hou,Yang style Tai Chi Chuan,Yang Lu-ch'an,Wu/Hao style T'ai Chi Ch'uan,Wu Ch'uan-yü,Hao Wei-chen,Yang Shou-chung,Wu style T'ai Chi Ch'uan,Wu Chien-ch'üan" />
-<link rel="shortcut icon" href="/favicon.ico" />
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-</div>		<h1 class="firstHeading">Tai Chi Chuan</h1>
-		<div id="bodyContent">
-			<h3 id="siteSub">From Wikipedia, the free encyclopedia</h3>
-
-			<div id="contentSub"></div>
-									<div id="jump-to-nav">Jump to: <a href="#column-one">navigation</a>, <a href="#searchInput">search</a></div>			<!-- start content -->
-			<table border="1" cellpadding="2" cellspacing="0" align="right">
-<tr>
-<th colspan="2" bgcolor="#FFCCCC"><big>???</big></th>
-</tr>
-<tr>
-<td colspan="2">
-
-<div class="center">
-<div class="thumb tnone">
-<div style="width:182px;"><a href="/wiki/Image:Yang_Ch%27eng-fu_circa_1918.jpg" class="internal" title="Yang Chengfu in a posture from the Tai Chi solo form known as Single Whip, circa 1918"><img src="http://upload.wikimedia.org/wikipedia/en/thumb/d/d1/Yang_Ch%27eng-fu_circa_1918.jpg/180px-Yang_Ch%27eng-fu_circa_1918.jpg" alt="Yang Chengfu in a posture from the Tai Chi solo form known as Single Whip, circa 1918" width="180" height="255" longdesc="/wiki/Image:Yang_Ch%27eng-fu_circa_1918.jpg" /></a>
-<div class="thumbcaption">
-<div class="magnify" style="float:right"><a href="/wiki/Image:Yang_Ch%27eng-fu_circa_1918.jpg" class="internal" title="Enlarge"><img src="/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="Enlarge" /></a></div>
-<b><a href="/wiki/Yang_Chengfu" title="Yang Chengfu">Yang Chengfu</a> in a posture from the Tai Chi solo form known as <i>Single Whip</i>, circa <a href="/wiki/1918" title="1918">1918</a></b></div>
-</div>
-</div>
-</div>
-</td>
-</tr>
-
-<tr>
-<th colspan="2"><a href="/wiki/Chinese_language" title="Chinese language">Chinese</a> Name</th>
-</tr>
-<tr>
-<td><a href="/wiki/Hanyu_Pinyin" title="Hanyu Pinyin">Hanyu Pinyin</a></td>
-<td>Tàijíquán</td>
-</tr>
-<tr>
-<td><a href="/wiki/Wade-Giles" title="Wade-Giles">Wade-Giles</a></td>
-<td>T'ai<sup>4</sup> Chi<sup>2</sup> Ch'üan<sup>2</sup></td>
-
-</tr>
-<tr>
-<td><a href="/wiki/Simplified_Chinese" title="Simplified Chinese">Simplified Chinese</a></td>
-<td>???</td>
-</tr>
-<tr>
-<td><a href="/wiki/Traditional_Chinese" title="Traditional Chinese">Traditional Chinese</a></td>
-<td><a href="http://en.wiktionary.org/wiki/%E5%A4%AA" class="extiw" title="wiktionary:?">?</a><a href="http://en.wiktionary.org/wiki/%E6%A5%B5" class="extiw" title="wiktionary:?">?</a><a href="http://en.wiktionary.org/wiki/%E6%8B%B3" class="extiw" title="wiktionary:?">?</a></td>
-</tr>
-<tr>
-<td><a href="/wiki/Cantonese_%28linguistics%29" title="Cantonese (linguistics)">Cantonese</a></td>
-
-<td>taai3 gik6 kyun4</td>
-</tr>
-<tr>
-<td><a href="/wiki/Hiragana" title="Hiragana">Japanese Hiragana</a></td>
-<td>???????</td>
-</tr>
-<tr>
-<td><a href="/wiki/Korean_%28language%29" title="Korean (language)">Korean</a></td>
-<td>???</td>
-</tr>
-<tr>
-<td><a href="/wiki/Vietnamese_%28language%29" title="Vietnamese (language)">Vietnamese</a></td>
-
-<td>Thái C?c Quy?n</td>
-</tr>
-</table>
-<p><b>Tai Chi Chuan</b>, <b>T'ai Chi Ch'üan</b> or <b>Taijiquan</b> (<a href="/wiki/Traditional_Chinese_character" title="Traditional Chinese character">Traditional Chinese</a>: ???; <a href="/wiki/Simplified_Chinese_character" title="Simplified Chinese character">Simplified Chinese</a>: ???; <a href="/wiki/Pinyin" title="Pinyin">pinyin</a>: Tàijíquán; literally "supreme ultimate fist"), commonly known as <b>Tai Chi</b>, <b>T'ai Chi</b>, or <b><a href="/wiki/Taiji" title="Taiji">Taiji</a></b>, is an <a href="/wiki/Neijia" title="Neijia">internal</a> <a href="/wiki/Chinese_martial_arts" title="Chinese martial arts">Chinese martial art</a>. There are different styles of T'ai Chi Ch'üan, although most agree they are all based on the system originally taught by the <a href="/wiki/Chen" title="Chen">Chen</a> family to the <a href="/wiki/Yang" title="Yang">Yang</a> family starting in <a href="/wiki/1820" title="1820">1820</a>. It is often promoted and practiced as a <a href="/wiki/Martial_arts_therapy" title="Martial arts therapy">martial arts therapy</a> for the purposes of <a href="/wiki/Health" title="Health">health</a> and <a href="/wiki/Longevity" title="Longevity">longevity</a>, (some <a href="/wiki/Tai_Chi_Chuan#Citations_to_medical_research" title="Tai Chi Chuan">recent medical studies</a> support its effectiveness). T'ai Chi Ch'üan is considered a <i>soft</i> style martial art, an art applied with as complete a relaxation or "softness" in the musculature as possible, to distinguish its theory and application from that of the <i>hard</i> martial art styles which use a degree of tension in the muscles.</p>
-
-<p>Variations of T'ai Chi Ch'üan's basic training forms are well known as the slow motion routines that groups of people practice every morning in parks across China and other parts of the world. Traditional T'ai Chi training is intended to teach awareness of one's own balance and what affects it, awareness of the same in others, an appreciation of the practical value in one's ability to moderate extremes of behavior and attitude at both mental and physical levels, and how this applies to effective self-defense principles.</p>
-<table id="toc" class="toc" summary="Contents">
-<tr>
-<td>
-<div id="toctitle">
-<h2>Contents</h2>
-</div>
-<ul>
-<li class="toclevel-1"><a href="#Overview"><span class="tocnumber">1</span> <span class="toctext">Overview</span></a></li>
-<li class="toclevel-1"><a href="#Training_and_techniques"><span class="tocnumber">2</span> <span class="toctext">Training and techniques</span></a></li>
-
-<li class="toclevel-1"><a href="#Styles_and_history"><span class="tocnumber">3</span> <span class="toctext">Styles and history</span></a>
-<ul>
-<li class="toclevel-2"><a href="#Family_tree"><span class="tocnumber">3.1</span> <span class="toctext">Family tree</span></a></li>
-<li class="toclevel-2"><a href="#Notes_to_Family_tree_table"><span class="tocnumber">3.2</span> <span class="toctext">Notes to Family tree table</span></a></li>
-</ul>
-</li>
-<li class="toclevel-1"><a href="#Modern_T.27ai_Chi"><span class="tocnumber">4</span> <span class="toctext">Modern T'ai Chi</span></a>
-
-<ul>
-<li class="toclevel-2"><a href="#Modern_forms"><span class="tocnumber">4.1</span> <span class="toctext">Modern forms</span></a></li>
-</ul>
-</li>
-<li class="toclevel-1"><a href="#Health_benefits"><span class="tocnumber">5</span> <span class="toctext">Health benefits</span></a>
-<ul>
-<li class="toclevel-2"><a href="#Citations_to_medical_research"><span class="tocnumber">5.1</span> <span class="toctext">Citations to medical research</span></a></li>
-</ul>
-
-</li>
-<li class="toclevel-1"><a href="#See_also"><span class="tocnumber">6</span> <span class="toctext">See also</span></a></li>
-<li class="toclevel-1"><a href="#External_links"><span class="tocnumber">7</span> <span class="toctext">External links</span></a></li>
-</ul>
-</td>
-</tr>
-</table>
-<p><script type="text/javascript">
-//<![CDATA[
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-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=1" title="Edit section: Overview">edit</a>]</div>
-
-<p><a name="Overview" id="Overview"></a></p>
-<h2>Overview</h2>
-<p>Historically, T'ai Chi Ch'üan has been regarded as a martial art, and its traditional practitioners still teach it as one. Even so, it has developed a worldwide following among many thousands of people with little or no interest in martial training for its aforementioned benefits to health and <a href="/wiki/Preventive_medicine" title="Preventive medicine">health maintenance</a>. Some call it a form of moving <a href="/wiki/Meditation" title="Meditation">meditation</a>, and T'ai Chi theory and practice evolved in agreement with many of the principles of <a href="/wiki/Traditional_Chinese_medicine" title="Traditional Chinese medicine">traditional Chinese medicine</a>. Besides general health benefits and <a href="/wiki/Stress_management" title="Stress management">stress management</a> attributed to beginning and intermediate level T'ai Chi training, many therapeutic interventions along the lines of traditional Chinese medicine are taught to advanced T'ai Chi students.</p>
-<p>T'ai Chi Ch'üan as physical training is characterized by its requirement for the use of leverage through the joints based on coordination in relaxation rather than muscular tension in order to neutralize or initiate physical attacks. The slow, repetitive work involved in that process is said to gently increase and open the internal circulation (<a href="/wiki/Breath" title="Breath">breath</a>, body heat, <a href="/wiki/Blood" title="Blood">blood</a>, <a href="/wiki/Lymph" title="Lymph">lymph</a>, <a href="/wiki/Peristalsis" title="Peristalsis">peristalsis</a>, etc.). Over time, proponents say, this enhancement becomes a lasting effect, a direct reversal of the constricting physical effects of stress on the human body. This reversal allows much more of the students' native energy to be available to them, which they may then apply more effectively to the rest of their lives; families, careers, spiritual or creative pursuits, hobbies, etc.</p>
-
-<p>The study of T'ai Chi Ch'üan involves three primary subjects:</p>
-<ul>
-<li><b>Health</b> - an unhealthy or otherwise uncomfortable person will find it difficult to meditate to a state of calmness or to use T'ai Chi as a martial art. T'ai Chi's health training therefore concentrates on relieving the physical effects of stress on the body and mind.</li>
-<li><b>Meditation</b> - the focus meditation and subsequent calmness cultivated by the meditative aspect of T'ai Chi is seen as necessary to maintain optimum health (in the sense of effectively maintaining stress relief or <a href="/wiki/Homeostasis" title="Homeostasis">homeostasis</a>) and in order to use it as a soft style martial art.</li>
-<li><b>Martial art</b> - the ability to competently use T'ai Chi as a martial art is said to be proof that the health and meditation aspects are working according to the dictates of the theory of T'ai Chi Ch'üan.</li>
-
-</ul>
-<p>In its traditional form (many modern variations exist which ignore at least one of the above requirements) every aspect of its training has to conform with all three of the aforementioned categories.</p>
-<p>The <a href="/wiki/Mandarin_%28linguistics%29" title="Mandarin (linguistics)">Mandarin</a> term "T'ai Chi Ch'üan" translates as "Supreme Ultimate Boxing" or "Boundless Fist". T'ai Chi training involves learning solo routines, known as <i>forms</i>, and two person routines, known as <i><a href="/wiki/Pushing_hands" title="Pushing hands">pushing hands</a></i>, as well as <i><a href="/wiki/Acupressure" title="Acupressure">acupressure</a></i>-related manipulations taught by traditional schools. T'ai Chi Ch'üan is seen by many of its schools as a variety of <a href="/wiki/Taoism" title="Taoism">Taoism</a>, and it does seemingly incorporate many Taoist principles into its practice (see below). It is an art form said to date back many centuries (although not reliably documented under that name before 1850), with precursor disciplines dating back thousands of years. The explanation given by the traditional T'ai Chi family schools for why so many of their previous generations have dedicated their lives to the study and preservation of the art is that the discipline it seems to give its students to dramatically improve the effects of stress in their lives, with a few years of hard work, should hold a useful purpose for people living in a stressful world. They say that once the T'ai Chi principles have been understood and internalized into the bodily framework the practitioner will have an immediately accessible "toolkit" thereby to improve and then maintain their health, to provide a meditative focus, and that can work as an effective and subtle martial art for self-defense.</p>
-<p>Teachers say the study of T'ai Chi Ch'üan is, more than anything else, about challenging one's ability to change oneself appropriately in response to outside forces. These principles are taught using the examples of <a href="/wiki/Physics" title="Physics">physics</a> as experienced by two (or more) bodies in <a href="/wiki/Combat" title="Combat">combat</a>. In order to be able to protect oneself or someone else by using change, it is necessary to understand what the consequences are of changing appropriately, changing inappropriately and not changing at all in response to an attack. Students, by this theory, will appreciate the full benefits of the entire art in the fastest way through physical training of the martial art aspect.</p>
-
-<p><a href="/wiki/Wu_Chien-ch%27uan" title="Wu Chien-ch'uan">Wu Chien-ch'üan</a>, co-founder of the Wu family style, described the name <i>T'ai Chi Ch'üan</i> this way at the beginning of the <a href="/wiki/20th_century" title="20th century">20th century</a>:</p>
-<dl>
-<dd>"Various people have offered different explanations for the name <i>T'ai Chi Ch'uan</i>. Some have said: 'In terms of self-cultivation, one must train from a state of movement towards a state of stillness. <i>T'ai Chi</i> comes about through the balance of <i><a href="/wiki/Yin" title="Yin">yin</a></i> and <i><a href="/wiki/Yang" title="Yang">yang</a></i>. In terms of the art of attack and defense then, in the context of the <a href="/wiki/I_Ching" title="I Ching">changes</a> of full and empty, one is constantly internally latent, not outwardly expressive, as if the <i>yin</i> and <i>yang</i> of <i>T'ai Chi</i> have not yet divided apart.'</dd>
-
-<dd>Others say: 'Every movement of <i>T'ai Chi Ch'uan</i> is based on circles, just like the shape of a <a href="/wiki/Taijitu" title="Taijitu"><i>T'ai Chi</i> symbol</a>. Therefore, it is called <i>T'ai Chi Ch'uan</i>.' Both explanations are quite reasonable, especially the second, which is more complete."</dd>
-</dl>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=2" title="Edit section: Training and techniques">edit</a>]</div>
-<p><a name="Training_and_techniques" id="Training_and_techniques"></a></p>
-
-<h2>Training and techniques</h2>
-<div class="thumb tright">
-<div style="width:182px;"><a href="/wiki/Image:Yin_yang.svg" class="internal" title="The T'ai Chi Symbol or T'ai Chi T'u (Taijitu)"><img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Yin_yang.svg/180px-Yin_yang.svg.png" alt="The T'ai Chi Symbol or T'ai Chi T'u (Taijitu)" width="180" height="180" longdesc="/wiki/Image:Yin_yang.svg" /></a>
-<div class="thumbcaption">
-<div class="magnify" style="float:right"><a href="/wiki/Image:Yin_yang.svg" class="internal" title="Enlarge"><img src="/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="Enlarge" /></a></div>
-<b>The T'ai Chi Symbol or T'ai Chi T'u (Taijitu)</b></div>
-</div>
-</div>
-<p>As the name <i>T'ai Chi Ch'üan</i> is held to be derived from the T'ai Chi symbol, the <i>taijitu</i> or <i>t'ai chi t'u</i> (???, <a href="/wiki/Pinyin" title="Pinyin">pinyin</a> tàijítú), commonly known in the West as the "<a href="/wiki/Yin-yang" title="Yin-yang">yin-yang</a>" diagram, T'ai Chi Ch'üan techniques are said therefore to physically and energetically balance <i>yin</i> (receptive) and <i>yang</i> (active) principles: "From ultimate softness comes ultimate hardness."</p>
-
-<p>The core training involves two primary features: the first being the solo form or <i>ch'üan</i>, a slow sequence of movements which emphasize a straight spine, relaxed breathing and a natural range of motion; the second being different styles of <i>pushing hands</i> or <i>t'ui shou</i> (??) for training "stickiness" and sensitivity in the reflexes through various motions from the forms in concert with a training partner in order to learn leverage, timing, coordination and positioning when interacting with another. Pushing hands is seen as necessary not only for training the self-defense skills of a soft style such as T'ai Chi by demonstrating the forms' movement principles experientially, but also it is said to improve upon the level of conditioning provided by practice of the solo forms by increasing the workload on students while they practice those movement principles.</p>
-<p>The solo form should take the students through a complete, natural, range of motion over their centre of gravity. Accurate, repeated practice of the solo routine is said to retrain posture, encourage circulation throughout the students' bodies, maintain flexibility through their joints and further familiarize students with the martial application sequences implied by the forms. The major traditional styles of T'ai Chi have forms which differ somewhat cosmetically, but there are also many obvious similarities which point to their common origin. The solo forms, empty-hand and <a href="/wiki/Weapon" title="Weapon">weapon</a>, are catalogues of movements that are practised individually in pushing hands and martial application scenarios to prepare students for self-defence training. In most traditional schools different variations of the solo forms can be practiced; fast/slow, small circle/large circle, square/round (which are different expressions of leverage through the joints), low sitting/high sitting (the degree to which weight-bearing knees are kept bent throughout the form), for example.</p>
-<p>In a fight, if one uses hardness to resist violent force then both sides are certain to be injured, at least to some degree. Such injury, according to T'ai Chi theory, is a natural consequence of meeting brute force with brute force. The collision of two like forces, yang with yang, is known as "double-weighted" in T'ai Chi terminology. Instead, students are taught not to fight or resist an incoming force, but to meet it in softness and "stick" to it, following its motion while remaining in physical contact until the incoming force of attack exhausts itself or can be safely redirected, the result of meeting yang with yin. Done correctly, achieving this yin/yang or yang/yin balance in combat (and, by extension, other areas of one's life) is known as being "single-weighted" and is a primary goal of T'ai Chi Ch'üan training. <a href="/wiki/Lao_Tzu" title="Lao Tzu">Lao Tzu</a> provided the <a href="/wiki/Archetype" title="Archetype">archetype</a> for this in the <a href="/wiki/Tao_Te_Ching" title="Tao Te Ching">Tao Te Ching</a> when he wrote, "The soft and the pliable will defeat the hard and strong." This soft "neutralization" of an attack can be accomplished very quickly in an actual fight by an adept practitioner. A T'ai Chi student has to be well conditioned by many years of disciplined training; stable, sensitive and elastic mentally and physically in order to realize this ability, however.</p>
-
-<p>Other training exercises include:</p>
-<ul>
-<li>Weapons training and <a href="/wiki/Fencing" title="Fencing">fencing</a> applications employing the straight <i><a href="/wiki/Sword" title="Sword">sword</a></i> known as the <i>jian</i> or <i>chien</i> or <i>gim</i> (<a href="/wiki/Jian" title="Jian">jiàn</a> ?), a heavier curved <i>sabre</i>, sometimes called a <i>broadsword</i> or <i>tao</i> (<a href="/wiki/Dao_%28saber%29" title="Dao (saber)">dao</a> ?, which is actually considered a big <i><a href="/wiki/Knife" title="Knife">knife</a></i>), folding <i><a href="/wiki/Tessen" title="Tessen">fan</a></i>, <i>staff</i> (?), 7 foot (2 m) <i><a href="/wiki/Qiang_%28spear%29" title="Qiang (spear)">spear</a></i> and 13 foot (4 m) <i><a href="/wiki/Lance" title="Lance">lance</a></i> (both called qiang ?). More exotic weapons still used by some traditional styles are the large <i>Da Dao</i> or <i>Ta Tao</i> (??) sabre, <i><a href="/wiki/Ji_%28halberd%29" title="Ji (halberd)">halberd</a></i> (ji ?), <i>cane</i>, <i>rope-dart</i>, <i><a href="/wiki/Three_sectional_staff" title="Three sectional staff">three sectional staff</a></i>, <i><a href="/wiki/Lasso" title="Lasso">lasso</a></i>, <i><a href="/wiki/Whip" title="Whip">whip</a></i>, <i><a href="/wiki/Chain_whip" title="Chain whip">chain whip</a></i> and <i>steel whip</i>.</li>
-
-<li>Two-person tournament sparring (as part of push hands competitions and/or <i><a href="/wiki/San_shou" title="San shou">san shou</a></i> ??);</li>
-<li>Breathing exercises; <i><a href="/wiki/Nei_kung" title="Nei kung">nei kung</a></i> (?? nèigong) or, more commonly, <i><a href="/wiki/Ch%27i_kung" title="Ch'i kung">ch'i kung</a></i> (?? qìgong) to develop <b><a href="/wiki/Ch%27i" title="Ch'i">ch'i</a></b> (? qì) or "breath energy" in coordination with physical movement and <a href="/wiki/Zhan_zhuang" title="Zhan zhuang">post standing</a> or combinations of the two. These were formerly taught only to disciples as a separate, complementary training system. In the last 50 years they have become more well known to the general public.</li>
-
-</ul>
-<p>T'ai Chi's martial aspect relies on sensitivity to the opponent's movements and centre of gravity dictating appropriate responses. Effectively affecting or "capturing" the opponent's centre of gravity immediately upon contact is trained as the primary goal of the martial T'ai Chi student, and from there all other technique can follow with seeming effortlessness. The alert calmness required to achieve the necessary sensitivity is acquired over thousands of hours of first <i>yin</i> (slow, repetitive, meditative, low impact) and then later adding <i>yang</i> ("realistic," active, fast, high impact) martial training; forms, pushing hands and sparring. T'ai Chi Ch'üan trains in three basic ranges, close, medium and long, and then everything in between. Pushes and open hand strikes are more common than punches, and kicks are usually to the legs and lower torso, never higher than the hip in most styles. The fingers, fists, palms, sides of the hands, wrists, forearms, elbows, shoulders, back, hips, knees and feet are commonly used to strike, with strikes to the eyes, throat, heart, groin and other acupressure points trained by advanced students. There is an extensive repertoire of joint traps, locks and breaks (<a href="/wiki/Chin_na" title="Chin na">chin na</a>), particularly applied to lock up or break an opponent's elbows, wrists, fingers, ankles, back or neck. Most T'ai Chi teachers expect their students to thoroughly learn defensive or neutralizing skills first, and a student will have to demonstrate proficiency with them before offensive skills will be extensively trained. There is also an emphasis in the traditional schools on kind-heartedness. One is expected to show mercy to one's opponents, as instanced by a poem preserved in some of the T'ai Chi families said to be derived from the <a href="/wiki/Shaolin" title="Shaolin">Shaolin</a> temple:</p>
-<dl>
-<dd>"I would rather maim than kill</dd>
-
-<dd>Hurt than maim</dd>
-<dd>Intimidate than hurt</dd>
-<dd>Avoid than intimidate."</dd>
-</dl>
-<div class="thumb tright">
-<div style="width:352px;"><a href="/wiki/Image:Martial_arts_-_Fragrant_Hills.JPG" class="internal" title="An outdoor Chen style class in Beijing"><img src="http://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Martial_arts_-_Fragrant_Hills.JPG/350px-Martial_arts_-_Fragrant_Hills.JPG" alt="An outdoor Chen style class in Beijing" width="350" height="233" longdesc="/wiki/Image:Martial_arts_-_Fragrant_Hills.JPG" /></a>
-<div class="thumbcaption">
-<div class="magnify" style="float:right"><a href="/wiki/Image:Martial_arts_-_Fragrant_Hills.JPG" class="internal" title="Enlarge"><img src="/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="Enlarge" /></a></div>
-An outdoor Chen style class in Beijing</div>
-</div>
-</div>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=3" title="Edit section: Styles and history">edit</a>]</div>
-
-<p><a name="Styles_and_history" id="Styles_and_history"></a></p>
-<h2>Styles and history</h2>
-<p>There are five major styles of T'ai Chi Ch'üan, each named after the Chinese family that teaches (or taught) it:</p>
-<ul>
-<li><b><a href="/wiki/Chen_style_Tai_Chi_Chuan" title="Chen style Tai Chi Chuan">Chen style</a></b> (??) and its close cousin <b><a href="/w/index.php?title=Zhaobao_style_T%27ai_Chi_Ch%27uan&amp;action=edit" class="new" title="Zhaobao style T'ai Chi Ch'uan">Zhao Bao Style</a></b> (?????)</li>
-<li><b><a href="/wiki/Yang_style_T%27ai_Chi_Ch%27uan" title="Yang style T'ai Chi Ch'uan">Yang style</a></b> (??)</li>
-
-<li><b><a href="/wiki/Wu/Hao_style_T%27ai_Chi_Ch%27uan" title="Wu/Hao style T'ai Chi Ch'uan">Wu or Wu/Hao style of Wu Yu-hsiang</a></b> (??)</li>
-<li><b><a href="/wiki/Wu_style_T%27ai_Chi_Ch%27uan" title="Wu style T'ai Chi Ch'uan">Wu style of Wu Ch'uan-yü and Wu Chien-ch'uan</a></b> (??)</li>
-<li><b><a href="/wiki/Sun_style_T%27ai_Chi_Ch%27uan" title="Sun style T'ai Chi Ch'uan">Sun style</a></b> (??)</li>
-</ul>
-<p>The order of seniority is as listed above. The order of popularity is Yang, Wu, Chen, Sun, and Wu/Hao. The first five major family styles share much underlying theory, but differ in their approaches to training.</p>
-<p>In the modern world there are now dozens of new styles, hybrid styles and offshoots of the main styles, but the five family schools are the groups recognised by the international community as being orthodox. For example, there are <i>several</i> groups teaching what they call <a href="/wiki/Wudang_Tai_Chi_Chuan" title="Wudang Tai Chi Chuan">Wu Tang style T'ai Chi Ch'üan (??????)</a>. The best known modern style going by the name <i>Wu Tang</i> has gained some publicity internationally, especially in the <a href="/wiki/United_Kingdom" title="United Kingdom">UK</a> and <a href="/wiki/Europe" title="Europe">Europe</a>, but was originally taught by a senior student of the Wu (?) style.</p>
-
-<p>The designation <i><a href="/wiki/Wudangquan" title="Wudangquan">Wu Tang Ch'üan</a></i> is also used to broadly distinguish <i>internal</i> or <i>nei chia</i> martial arts (said to be a specialty of the <a href="/wiki/Monasteries" title="Monasteries">monasteries</a> at <a href="/wiki/Wudangshan" title="Wudangshan">Wu Tang Shan</a>) from what are known as the <i>external</i> or <i>wei chia</i> styles based on <i><a href="/w/index.php?title=Shaolinquan_kung_fu&amp;action=edit" class="new" title="Shaolinquan kung fu">Shaolinquan kung fu</a></i>, although that distinction is sometimes disputed by individual schools. In this broad sense, among many T'ai Chi schools <i>all</i> styles of T'ai Chi (as well as related arts such as <a href="/wiki/Bagua_zhang" title="Bagua zhang">Pa Kua Chang</a> and <a href="/wiki/Hsing_Yi" title="Hsing Yi">Hsing-i Ch'üan</a>) are therefore considered to be "Wu Tang style" martial arts. The schools that designate themselves "Wu Tang style" relative to the family styles mentioned above mostly claim to teach an "original style" they say was formulated by a Taoist monk called <a href="/wiki/Zhang_Sanfeng" title="Zhang Sanfeng">Zhang Sanfeng</a> and taught by him in the Taoist monasteries at Wu Tang Shan. Some consider that what is practised under that name today may be a modern back-formation based on stories and popular veneration of Zhang Sanfeng (see below) as well as the martial fame of the Wu Tang monastery (there are many other martial art styles historically associated with Wu Tang besides T'ai Chi).</p>
-
-<p>When tracing T'ai Chi Ch'üan's formative influences to <a href="/wiki/Taoist" title="Taoist">Taoist</a> and <a href="/wiki/Buddhist" title="Buddhist">Buddhist</a> monasteries, one has little more to go on than legendary tales from a modern historical perspective, but T'ai Chi Ch'üan's practical connection to and dependence upon the theories of <a href="/wiki/Song_dynasty" title="Song dynasty">Sung dynasty</a> <a href="/wiki/Neo-Confucianism" title="Neo-Confucianism">Neo-Confucianism</a> (a conscious synthesis of Taoist, Buddhist and <a href="/wiki/Confucian" title="Confucian">Confucian</a> traditions, esp. the teachings of <a href="/wiki/Mencius" title="Mencius">Mencius</a>) is readily apparent to its practitioners. The philosophical and political landscape of that time in Chinese history is fairly well documented, even if the origin of the art later to become known as T'ai Chi Ch'üan in it is not. T'ai Chi Ch'üan's theories and practice are therefore believed by some schools to have been formulated by the Taoist monk <a href="/wiki/Zhang_Sanfeng" title="Zhang Sanfeng">Zhang Sanfeng</a> in the 12th century, a time frame fitting well with when the principles of the Neo-Confucian school were making themselves felt in Chinese intellectual life. Therefore the didactic story is told that Zhang Sanfeng as a young man studied <a href="/wiki/Tao_Yin" title="Tao Yin">Tao Yin</a> (??, <a href="/wiki/Pinyin" title="Pinyin">Pinyin</a> daoyin) breathing exercises from his Taoist teachers and martial arts at the Buddhist Shaolin monastery, eventually combining the martial forms and breathing exercises to formulate the soft or internal principles we associate with T'ai Chi Ch'üan and related martial arts. Its subsequent fame attributed to his teaching, Wu Tang monastery was known thereafter as an important martial center for many centuries, its many styles of internal <a href="/wiki/Kung_fu" title="Kung fu">kung fu</a> preserved and refined at various Taoist temples.</p>
-
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=4" title="Edit section: Family tree">edit</a>]</div>
-<p><a name="Family_tree" id="Family_tree"></a></p>
-<h3>Family tree</h3>
-<p>This family tree is not comprehensive.</p>
-<pre>
-<b>LEGENDARY FIGURES</b>
-   |
-<a href="/wiki/Zhang_Sanfeng" title="Zhang Sanfeng">Zhang Sanfeng</a>*
-circa 12th century
-<a href="/wiki/Nei_chia" title="Nei chia">NEI CHIA</a>
-
-   |
-<a href="/w/index.php?title=Wang_Zongyue&amp;action=edit" class="new" title="Wang Zongyue">Wang Zongyue</a>*
-T'AI CHI CH'ÜAN
-   |
-<b>THE 5 MAJOR CLASSICAL FAMILY STYLES</b>
-   |
-Chen Wangting
-1600-1680 9th generation Chen
-<a href="/wiki/Chen_style_Tai_Chi_Chuan" title="Chen style Tai Chi Chuan">CHEN STYLE</a>
-   |
-   +-------------------------------------------------------------------+
-   |                                                                   |
-<a href="/w/index.php?title=Chen_Changxing&amp;action=edit" class="new" title="Chen Changxing">Chen Changxing</a>                                                     <a href="/w/index.php?title=Chen_Youben&amp;action=edit" class="new" title="Chen Youben">Chen Youben</a>
-1771-1853 14th generation Chen                                     circa 1800s 14th generation Chen
-Chen Old Frame                                                     Chen New Frame
-   |                                                                   |
-
-<a href="/wiki/Yang_Lu-ch%27an" title="Yang Lu-ch'an">Yang Lu-ch'an</a>                                                      <a href="/w/index.php?title=Chen_Qingping&amp;action=edit" class="new" title="Chen Qingping">Chen Qingping</a>
-1799-1872                                                          1795-1868
-<a href="/wiki/Yang_style_Tai_Chi_Chuan" title="Yang style Tai Chi Chuan">YANG STYLE</a>                                                         Chen Small Frame, Zhao Bao Frame
-   |                                                                   |
-   +---------------------------------+-----------------------------+   |
-   |                                 |                             |   |
-<a href="/wiki/Yang_Pan-hou" title="Yang Pan-hou">Yang Pan-hou</a>                      <a href="/wiki/Yang_Chien-hou" title="Yang Chien-hou">Yang Chien-hou</a>                   <a href="/w/index.php?title=Wu_Yu-hsiang&amp;action=edit" class="new" title="Wu Yu-hsiang">Wu Yu-hsiang</a>
-1837-1892                         1839-1917                        1812-1880
-Yang Small Frame                     |                             <a href="/wiki/Wu/Hao_style_T%27ai_Chi_Ch%27uan" title="Wu/Hao style T'ai Chi Ch'uan">WU/HAO STYLE</a>
-
-   |                                 +-----------------+                      |
-   |                                 |                 |                      |
-<a href="/wiki/Wu_Ch%27uan-y%C3%BC" title="Wu Ch'uan-yü">Wu Ch'uan-yü</a>                      <a href="/wiki/Yang_Shao-hou" title="Yang Shao-hou">Yang Shao-hou</a>     <a href="/wiki/Yang_Ch%27eng-fu" title="Yang Ch'eng-fu">Yang Ch'eng-fu</a>          <a href="/w/index.php?title=Li_I-y%C3%BC&amp;action=edit" class="new" title="Li I-yü">Li I-yü</a>
-1834-1902                         1862-1930         1883-1936               1832-1892
-   |                              Yang Small Frame  <a href="/wiki/103_form_Yang_family_T%27ai_Chi_Ch%27uan" title="103 form Yang family T'ai Chi Ch'uan">Yang Big Frame</a>            |
-<a href="/wiki/Wu_Chien-ch%27%C3%BCan" title="Wu Chien-ch'üan">Wu Chien-ch'üan</a>                                        |                    <a href="/wiki/Hao_Wei-chen" title="Hao Wei-chen">Hao Wei-chen</a>
-
-1870-1942                                           <a href="/wiki/Yang_Shou-chung" title="Yang Shou-chung">Yang Shou-chung</a>         1849-1920
-<a href="/wiki/Wu_style_T%27ai_Chi_Ch%27uan" title="Wu style T'ai Chi Ch'uan">WU STYLE</a>                                            1910-1985                 |
-<a href="/wiki/108_form_Wu_family_T%27ai_Chi_Ch%27uan" title="108 form Wu family T'ai Chi Ch'uan">108 Form</a>                                                                      |
-   |                                                                        <a href="/wiki/Sun_Lu-t%27ang" title="Sun Lu-t'ang">Sun Lu-t'ang</a>
-<a href="/wiki/Wu_Kung-i" title="Wu Kung-i">Wu Kung-i</a>                                                                   1861-1932
-1900-1970                                                                   <a href="/wiki/Sun_style_T%27ai_Chi_Ch%27uan" title="Sun style T'ai Chi Ch'uan">SUN STYLE</a>
-
-   |                                                                          |
-<a href="/w/index.php?title=Wu_Ta-kuei&amp;action=edit" class="new" title="Wu Ta-kuei">Wu Ta-kuei</a>                                                                  <a href="/w/index.php?title=Sun_Hsing-i&amp;action=edit" class="new" title="Sun Hsing-i">Sun Hsing-i</a>
-1923-1970                                                                   1891-1929                  
-                           
-<b>MODERN FORMS</b>        
-                                      
-from Yang Ch`eng-fu                     
-        |               
-        |              
-        |                         
-        +--------------+      
-        |              |       
-  <a href="/wiki/Cheng_Man-ch%27ing" title="Cheng Man-ch'ing">Cheng Man-ch'ing</a>     |   
-  1901-1975            |    
-  Short (37) Form      |     
-                       |
-              Chinese Sports Commission
-              1956
-              Beijing <a href="/wiki/24_Form" title="24 Form">24 Form</a>
-              .
-              .
-              1989
-              <a href="/wiki/42_Form_%28Competition_Form%29_T%27ai_Chi_Ch%27uan" title="42 Form (Competition Form) T'ai Chi Ch'uan">42 Competition Form</a>
-
-              (<a href="/wiki/Wushu" title="Wushu">Wushu</a> competition form combined from Sun, Wu, Chen, and Yang styles)
-</pre>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=5" title="Edit section: Notes to Family tree table">edit</a>]</div>
-<p><a name="Notes_to_Family_tree_table" id="Notes_to_Family_tree_table"></a></p>
-<h3>Notes to Family tree table</h3>
-<p>Names denoted by an asterisk are legendary or semilegendary figures in the lineage, which means their involvement in the lineage, while accepted by most of the major schools, isn't independently verifiable from known historical records.</p>
-<p>The Cheng Man-ch'ing and <a href="/w/index.php?title=Chinese_Sports_Commission&amp;action=edit" class="new" title="Chinese Sports Commission">Chinese Sports Commission</a> short forms are said to be derived from Yang family forms, but neither are recognized as Yang family T'ai Chi Ch'üan by current Yang family teachers. The Chen, Yang and Wu families are now promoting their own shortened demonstration forms for competitive purposes.</p>
-
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=6" title="Edit section: Modern T'ai Chi">edit</a>]</div>
-<p><a name="Modern_T.27ai_Chi" id="Modern_T.27ai_Chi"></a></p>
-<h2>Modern T'ai Chi</h2>
-<div class="thumb tright">
-<div style="width:352px;"><a href="/wiki/Image:Taichi_shanghai_bund_2005.jpg" class="internal" title="Yang style in Shanghai"><img src="http://upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Taichi_shanghai_bund_2005.jpg/350px-Taichi_shanghai_bund_2005.jpg" alt="Yang style in Shanghai" width="350" height="263" longdesc="/wiki/Image:Taichi_shanghai_bund_2005.jpg" /></a>
-<div class="thumbcaption">
-<div class="magnify" style="float:right"><a href="/wiki/Image:Taichi_shanghai_bund_2005.jpg" class="internal" title="Enlarge"><img src="/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="Enlarge" /></a></div>
-Yang style in Shanghai</div>
-</div>
-</div>
-<p>T'ai Chi has become very popular in the last twenty years or so, as the <a href="/wiki/Baby_boomers" title="Baby boomers">baby boomers</a> age and T'ai Chi's reputation for ameliorating the effects of aging becomes more well-known. Hospitals, clinics, community and senior centers are all hosting T'ai Chi classes in communities around the world. As a result of this popularity, there has been some divergence between those who say they practice T'ai Chi primarily for fighting, those who practice it for its <a href="/wiki/Aesthetic" title="Aesthetic">aesthetic</a> appeal (as in the shortened, modern, theatrical "Taijiquan" forms of <a href="/wiki/Wushu" title="Wushu">wushu</a>, see below), and those who are more interested in its benefits to physical and mental health. The wushu aspect is primarily for show; the forms taught for those purposes are designed to earn points in competition and are mostly unconcerned with either health maintenance or martial ability. More traditional stylists still see the two aspects of health and martial arts as equally necessary pieces of the puzzle, the <i>yin</i> and <i>yang</i> of T'ai Chi Ch'üan. The T'ai Chi "family" schools therefore still present their teachings in a martial art context even though the majority of their students nowadays profess that they are primarily interested in training for the claimed health benefits.</p>
-
-<p>Along with <a href="/wiki/Yoga" title="Yoga">Yoga</a>, it is one of the fastest growing fitness and health maintenance activities, in terms of numbers of students enrolling in classes. Since there is no universal certification process and most Westerners haven't seen very much T'ai Chi and don't know what to look for, practically anyone can learn or even make up a few moves and call themselves a teacher. This is especially prevalent in the <a href="/wiki/New_Age" title="New Age">New Age</a> community. Relatively few of these teachers even know that there are martial applications to the T'ai Chi forms. Those who do know that it is a martial art usually don't teach martially themselves. If they do teach self-defense, it is often a mixture of motions which the teachers think look like T'ai Chi Ch'üan with some other system. This is especially evident in schools located outside of China. While this phenomenon may have made some external aspects of T'ai Chi available for a wider audience, the traditional T'ai Chi family schools see the martial focus as a fundamental part of their training, both for health <i>and</i> self-defense purposes. They claim that while the students may not need to practice martial applications themselves to derive a benefit from T'ai Chi training, they assert that T'ai Chi teachers at least should know the martial applications to ensure that the movements they teach are done correctly and safely by their students. Also, working on the ability to protect oneself from physical attack (one of the most stressful things that can happen to a person) certainly falls under the category of complete "health maintenance." For these reasons they claim that a school not teaching those aspects somewhere in their syllabus cannot be said to be actually teaching the art itself, and will be much less likely to be able to reproduce the full health benefits that made T'ai Chi's reputation in the first place.</p>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=7" title="Edit section: Modern forms">edit</a>]</div>
-<p><a name="Modern_forms" id="Modern_forms"></a></p>
-<h3>Modern forms</h3>
-
-<div class="thumb tright">
-<div style="width:352px;"><a href="/wiki/Image:Tai_Chi_fans.jpg" class="internal" title="Women practicing non-martial T'ai Chi in Chinatown (New York City, New York, USA)."><img src="http://upload.wikimedia.org/wikipedia/en/thumb/a/ad/Tai_Chi_fans.jpg/350px-Tai_Chi_fans.jpg" alt="Women practicing non-martial T'ai Chi in Chinatown (New York City, New York, USA)." width="350" height="201" longdesc="/wiki/Image:Tai_Chi_fans.jpg" /></a>
-<div class="thumbcaption">
-<div class="magnify" style="float:right"><a href="/wiki/Image:Tai_Chi_fans.jpg" class="internal" title="Enlarge"><img src="/skins-1.5/common/images/magnify-clip.png" width="15" height="11" alt="Enlarge" /></a></div>
-Women practicing non-martial T'ai Chi in <a href="/wiki/Chinatown_%28Manhattan%29" title="Chinatown (Manhattan)">Chinatown</a> (<a href="/wiki/New_York_City" title="New York City">New York City</a>, <a href="/wiki/New_York" title="New York">New York</a>, <a href="/wiki/USA" title="USA">USA</a>).</div>
-</div>
-</div>
-
-<p>In order to standardize T'ai Chi Ch'üan for wushu tournament judging, and because many of the family T'ai Chi Ch'üan teachers had either moved out of China or had been forced to stop teaching after the <a href="/wiki/Chinese_Civil_War" title="Chinese Civil War">Communist regime was established</a> in <a href="/wiki/1949" title="1949">1949</a>, the government sponsored Chinese Sports Committee brought together four of their wushu teachers to truncate the Yang family hand form to <a href="/wiki/24_Form_%28Simplified_Form%29_T%27ai_Chi_Ch%27uan" title="24 Form (Simplified Form) T'ai Chi Ch'uan">24 postures</a> in <a href="/wiki/1956" title="1956">1956</a>. They wanted to somehow retain the look of T'ai Chi Ch'üan but make an easy to remember routine that was less difficult to teach and much less difficult to learn than longer (generally 88 to 108 posture) classical solo hand forms. In <a href="/wiki/1976" title="1976">1976</a>, they developed a slightly longer form also for the purposes of demonstration that still didn't involve the complete memory, balance and coordination requirements of the traditional forms. This was a combination form, the <i>Combined 48 Forms</i> that were created by three wushu coaches headed by Professor Men Hui Feng. The combined forms were created based on simplifying and combining some features of the classical forms from four of the original styles; Ch'en, Yang, Wu, and Sun. Even though shorter modern forms don't have the conditioning benefits of the classical forms, the idea was to take what they felt were distinctive cosmetic features of these styles and to express them in a shorter time for purposes of competition.</p>
-
-<p>As T'ai Chi again became popular on the Mainland, competitive forms were developed to be completed within a 6 minute time limit. In the late <a href="/wiki/1980s" title="1980s">1980s</a>, the Chinese Sports Committee standardized many different competition forms. It had developed sets said to represent the four major styles as well as combined forms. These five sets of forms were created by different teams, and later approved by a committee of wushu coaches in China. All sets of forms thus created were named after their style, e.g., the Ch'en Style National Competition Form is the <i>56 Forms</i>, and so on. The combined forms are <i>The 42 Form</i> or simply the <i>Competition Form</i>, as it is known in China. In the 11th <a href="/wiki/Asian_Games" title="Asian Games">Asian Games</a> of <a href="/wiki/1990" title="1990">1990</a>, wushu was included as an item for competition for the first time with the 42 Form being chosen to represent T'ai Chi. The International Wushu Federation (<a href="/w/index.php?title=IWUF&amp;action=edit" class="new" title="IWUF">IWUF</a>) has applied for wushu to be part of the <a href="/wiki/Olympic_games" title="Olympic games">Olympic games</a>. If accepted, it is likely that T'ai Chi and wushu will be represented as demonstration events in <a href="/wiki/2008" title="2008">2008</a>.</p>
-
-<p>Representatives of the original T'ai Chi families do not teach the forms developed by the Chinese Sports Committee. T'ai Chi Ch'üan has historically been seen by them as a martial art, not a sport, with competitions mostly entered as a hobby or to promote one's school publicly, but with little bearing on measuring actual accomplishment in the art. Their criticisms of modern forms include that the modern, "government" routines have no standardized, internally consistent training requirements. Also, that people studying competition forms rarely train pushing hands or other power generation trainings vital to learning the martial applications of T'ai Chi Ch'üan and thereby lack the <a href="/wiki/Quality_control" title="Quality control">quality control</a> traditional teachers maintain is essential for achieving the full benefits from both the health and the martial aspect of traditional T'ai Chi training.</p>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=8" title="Edit section: Health benefits">edit</a>]</div>
-<p><a name="Health_benefits" id="Health_benefits"></a></p>
-<h2>Health benefits</h2>
-<p>Researchers have found that long-term T'ai Chi practice had favorable effects on the promotion of balance control, flexibility and cardiovascular fitness and reduced the risk of falls in elders. The studies also reported reduced pain, stress and anxiety in healthy subjects. Other studies have indicated improved cardiovascular and respiratory function in healthy subjects as well as those who had undergone coronary artery bypass surgery. Patients also benefited from T'ai Chi who suffered from heart failure, high blood pressure, heart attacks, arthritis and multiple sclerosis.</p>
-<p>T'ai Chi has also been shown to reduce the symptoms of young Attention Deficit and Hyperactivity Disorder (<a href="/wiki/ADHD" title="ADHD">ADHD</a>) sufferers. T'ai Chi's gentle, low impact, movements surprisingly burn more calories than surfing and nearly as many as downhill skiing. T'ai Chi also boosts aspects of the immune system's function very significantly, and has been shown to reduce the incidence of anxiety, depression, and overall mood disturbance. (See research citations listed below.)</p>
-
-<p>A pilot study has found evidence that T'ai Chi and related qigong helps reduce the severity of <a href="/wiki/Diabetes" title="Diabetes">diabetes</a>.<a href="http://www.abc.net.au/pm/content/2005/s1535304.htm" class="external autonumber" title="http://www.abc.net.au/pm/content/2005/s1535304.htm">[1]</a></p>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=9" title="Edit section: Citations to medical research">edit</a>]</div>
-<p><a name="Citations_to_medical_research" id="Citations_to_medical_research"></a></p>
-<h3>Citations to medical research</h3>
-<ul>
-<li>Wolf SL, Sattin RW, Kutner M. Intense T'ai Chi exercise training and fall occurrences in older, transitionally frail adults: a randomized, controlled trial. J Am Geriatr Soc. 2003 Dec; 51(12): 1693-701. <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=pubmed&amp;dopt=Abstract&amp;list_uids=14687346" class="external" title="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=pubmed&amp;dopt=Abstract&amp;list_uids=14687346">PMID 14687346</a></li>
-<li>Wang C, Collet JP, Lau J. The effect of Tai Chi on health outcomes in patients with chronic conditions: a <a href="/wiki/Systematic_review" title="Systematic review">systematic review</a>. Arch Intern Med. 2004 Mar 8;164(5):493-501. <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=pubmed&amp;dopt=Abstract&amp;list_uids=15006825" class="external" title="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=pubmed&amp;dopt=Abstract&amp;list_uids=15006825">PMID 15006825</a></li>
-
-<li>Search a listing of articles relating to the FICSIT trials and T'ai Chi <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Select+from+History&amp;db=pubmed&amp;query_key=3" class="external autonumber" title="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Select+from+History&amp;db=pubmed&amp;query_key=3">[2]</a></li>
-<li>Hernandez-Reif, M., Field, T.M., &amp; Thimas, E. (2001). Attention deficit hyperactivity disorder: benefits from Tai Chi. Journal of Bodywork &amp; Movement Therapies, 5(2):120-3, 2001 Apr, 5(23 ref), 120-123</li>
-<li>Calorie Burning Chart <a href="http://www.nutristrategy.com/activitylist3.htm" class="external autonumber" title="http://www.nutristrategy.com/activitylist3.htm">[3]</a></li>
-<li>Tai Chi boosts T-Cell counts in immune system <a href="http://www.acupuncturetoday.com/archives2003/nov/11taichi.html" class="external autonumber" title="http://www.acupuncturetoday.com/archives2003/nov/11taichi.html">[4]</a></li>
-<li>Tai Chi, depression, anxiety, and mood disturbance (American Psychological Association) Journal of Psychosomatic Research, 1989 Vol 33 (2) 197-206</li>
-
-<li>A comprehensive listing of Tai Chi medical research links <a href="http://www.worldtaichiday.org/WTCQDHlthBenft.html" class="external autonumber" title="http://www.worldtaichiday.org/WTCQDHlthBenft.html">[5]</a></li>
-<li>References to medical publications <a href="http://www.worldtaichiday.org/HeadlineNews.html" class="external autonumber" title="http://www.worldtaichiday.org/HeadlineNews.html">[6]</a></li>
-<li><a href="http://www.abc.net.au/pm/content/2005/s1535304.htm" class="external text" title="http://www.abc.net.au/pm/content/2005/s1535304.htm">Tai Chi a promising remedy for diabetes</a>, <i>Australian Broadcasting Corporation</i>, 20 December, 2005 - Pilot study of Qigong and tai chi in diabetes sufferers.</li>
-<li>Health Research Articles on "Tai Chi as Health Therapy" for many issues, i.e. ADHD, Cardiac Health &amp; Rehabilitation, Diabetes, High Blood Pressure, Menopause, Bone Loss, Weight Loss, etc.<a href="http://www.worldtaichiday.org/LIBRARYArticles/LIBRARYTaiChiArticlesMenu.html" class="external autonumber" title="http://www.worldtaichiday.org/LIBRARYArticles/LIBRARYTaiChiArticlesMenu.html">[7]</a></li>
-</ul>
-
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=10" title="Edit section: See also">edit</a>]</div>
-<p><a name="See_also" id="See_also"></a></p>
-<h2>See also</h2>
-<ul>
-<li><a href="/wiki/Jing_%28TCM%29" title="Jing (TCM)">Jing</a></li>
-<li><a href="/wiki/List_of_Tai_Chi_Chuan_forms" title="List of Tai Chi Chuan forms">List of Tai Chi Chuan forms</a></li>
-<li><a href="/wiki/Nei_Jin" title="Nei Jin">nei chin</a></li>
-<li><a href="/wiki/Silk_reeling" title="Silk reeling">Silk reeling</a></li>
-<li><a href="/wiki/World_Tai_Chi_and_Qigong_Day" title="World Tai Chi and Qigong Day">World Tai Chi and Qigong Day</a></li>
-
-</ul>
-<div class="editsection" style="float:right;margin-left:5px;">[<a href="/w/index.php?title=Tai_Chi_Chuan&amp;action=edit&amp;section=11" title="Edit section: External links">edit</a>]</div>
-<p><a name="External_links" id="External_links"></a></p>
-<h2>External links</h2>
-<ul>
-<li><a href="http://www.chenxiaowang.com/" class="external text" title="http://www.chenxiaowang.com/">A Chen Family Website</a></li>
-<li><a href="http://www.yangfamilytaichi.com/" class="external text" title="http://www.yangfamilytaichi.com/">Yang Family Website</a></li>
-<li><a href="http://www.wustyle.com/" class="external text" title="http://www.wustyle.com/">Wu Chien-ch'üan Family Website</a></li>
-<li><a href="http://www.fushengyuan-taichi.com.au/" class="external text" title="http://www.fushengyuan-taichi.com.au/">Fu Family Website</a></li>
-
-<li><a href="http://www.itcca.org/" class="external text" title="http://www.itcca.org/">Yang family disciple's website (ITCCA)</a></li>
-<li><a href="http://www.dongtaichi.com/" class="external text" title="http://www.dongtaichi.com/">Dong T'ai Chi</a></li>
-<li><a href="http://www.leefamilystyle.com/" class="external text" title="http://www.leefamilystyle.com/">UK website for Li style, popular in Europe</a></li>
-<li><a href="http://www.chen-taiji.com/mambo/" class="external text" title="http://www.chen-taiji.com/mambo/">The World of Taijiquan</a></li>
-<li><a href="http://www.scheele.org/lee/tcclinks.html" class="external text" title="http://www.scheele.org/lee/tcclinks.html">Lee Scheele's Links to T'ai Chi Ch'uan Web Sites</a></li>
-<li><a href="http://news.bbc.co.uk/1/hi/health/3543907.stm" class="external text" title="http://news.bbc.co.uk/1/hi/health/3543907.stm">BBC article</a></li>
-<li><a href="http://www.acupuncturetoday.com/archives2004/jul/07taichi.html" class="external text" title="http://www.acupuncturetoday.com/archives2004/jul/07taichi.html">Tai Chi: Good for the Mind, Good for the Body</a></li>
-<li><a href="http://www.taichiunion.com/" class="external text" title="http://www.taichiunion.com/">Tai Chi Chuan Union for Great Britian: The largest collective of independent Tai Chi Chuan Instructors in the British Isles</a></li>
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-				<li id="n-Featured-articles"><a href="/wiki/Wikipedia:Featured_articles">Featured articles</a></li>
-
-				<li id="n-currentevents"><a href="/wiki/Portal:Current_events">Current events</a></li>
-				<li id="n-recentchanges"><a href="/wiki/Special:Recentchanges">Recent changes</a></li>
-				<li id="n-randompage"><a href="/wiki/Special:Random">Random article</a></li>
-				<li id="n-help"><a href="/wiki/Help:Contents">Help</a></li>
-				<li id="n-contact"><a href="/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li>
-				<li id="n-sitesupport"><a href="http://wikimediafoundation.org/wiki/Fundraising#Donation_methods">Donations</a></li>
-
-			</ul>
-		</div>
-	</div>
-		<div id="p-search" class="portlet">
-		<h5><label for="searchInput">Search</label></h5>
-		<div id="searchBody" class="pBody">
-			<form action="/wiki/Special:Search" id="searchform"><div>
-				<input id="searchInput" name="search" type="text" accesskey="f" value="" />
-
-				<input type='submit' name="go" class="searchButton" id="searchGoButton"	value="Go" />&nbsp;
-				<input type='submit' name="fulltext" class="searchButton" value="Search" />
-			</div></form>
-		</div>
-	</div>
-	<div class="portlet" id="p-tb">
-		<h5>Toolbox</h5>
-		<div class="pBody">
-
-			<ul>
-				<li id="t-whatlinkshere"><a href="/w/index.php?title=Special:Whatlinkshere&amp;target=Tai_Chi_Chuan">What links here</a></li>
-				<li id="t-recentchangeslinked"><a href="/w/index.php?title=Special:Recentchangeslinked&amp;target=Tai_Chi_Chuan">Related changes</a></li>
-<li id="t-upload"><a href="/wiki/Special:Upload">Upload file</a></li>
-<li id="t-specialpages"><a href="/wiki/Special:Specialpages">Special pages</a></li>
-				<li id="t-print"><a href="/w/index.php?title=Tai_Chi_Chuan&amp;printable=yes">Printable version</a></li>				<li id="t-permalink"><a href="/w/index.php?title=Tai_Chi_Chuan&amp;oldid=65197836">Permanent link</a></li><li id="t-cite"><a href="/w/index.php?title=Special:Cite&amp;page=Tai_Chi_Chuan&amp;id=65197836">Cite this article</a></li>			</ul>
-
-		</div>
-	</div>
-	<div id="p-lang" class="portlet">
-		<h5>In other languages</h5>
-		<div class="pBody">
-			<ul>
-				<li class="interwiki-br"><a href="http://br.wikipedia.org/wiki/Taichichuan">Brezhoneg</a></li>
-				<li class="interwiki-ca"><a href="http://ca.wikipedia.org/wiki/Tai_txi_txuan">Català</a></li>
-
-				<li class="interwiki-cs"><a href="http://cs.wikipedia.org/wiki/Tchaj-%C5%A5i">Cesky</a></li>
-				<li class="interwiki-da"><a href="http://da.wikipedia.org/wiki/Tai_Chi">Dansk</a></li>
-				<li class="interwiki-de"><a href="http://de.wikipedia.org/wiki/Taijiquan">Deutsch</a></li>
-				<li class="interwiki-et"><a href="http://et.wikipedia.org/wiki/Taijiquan">Eesti</a></li>
-				<li class="interwiki-el"><a href="http://el.wikipedia.org/wiki/%CE%A4%CE%AC%CE%B9_%CE%A4%CE%B6%CE%AF_%CE%A3%CE%BF%CF%85%CE%AC%CE%BD">????????</a></li>
-				<li class="interwiki-es"><a href="http://es.wikipedia.org/wiki/Tai_Chi_Chuan">Español</a></li>
-
-				<li class="interwiki-eo"><a href="http://eo.wikipedia.org/wiki/Taj%C4%9Di%C4%89uano">Esperanto</a></li>
-				<li class="interwiki-fr"><a href="http://fr.wikipedia.org/wiki/Tai-chi-chuan">Français</a></li>
-				<li class="interwiki-it"><a href="http://it.wikipedia.org/wiki/Taijiquan">Italiano</a></li>
-				<li class="interwiki-he"><a href="http://he.wikipedia.org/wiki/%D7%98%D7%90%D7%99_%D7%A6%27%D7%99">?????</a></li>
-				<li class="interwiki-hu"><a href="http://hu.wikipedia.org/wiki/Taijiquan">Magyar</a></li>
-				<li class="interwiki-nl"><a href="http://nl.wikipedia.org/wiki/Tai_Chi">Nederlands</a></li>
-
-				<li class="interwiki-ja"><a href="http://ja.wikipedia.org/wiki/%E5%A4%AA%E6%A5%B5%E6%8B%B3">???</a></li>
-				<li class="interwiki-pl"><a href="http://pl.wikipedia.org/wiki/Taijiquan">Polski</a></li>
-				<li class="interwiki-pt"><a href="http://pt.wikipedia.org/wiki/Tai_Chi_Chuan">Português</a></li>
-				<li class="interwiki-ro"><a href="http://ro.wikipedia.org/wiki/Taijiquan">Româna</a></li>
-				<li class="interwiki-ru"><a href="http://ru.wikipedia.org/wiki/%D0%A2%D0%B0%D0%B9%D1%86%D0%B7%D0%B8%D1%86%D1%8E%D0%B0%D0%BD%D1%8C">???????</a></li>
-				<li class="interwiki-fi"><a href="http://fi.wikipedia.org/wiki/Taijiquan">Suomi</a></li>
-
-				<li class="interwiki-sv"><a href="http://sv.wikipedia.org/wiki/Taijiquan">Svenska</a></li>
-				<li class="interwiki-th"><a href="http://th.wikipedia.org/wiki/%E0%B9%84%E0%B8%97%E0%B9%88%E0%B9%80%E0%B8%81%E0%B9%8A%E0%B8%81">???</a></li>
-				<li class="interwiki-tr"><a href="http://tr.wikipedia.org/wiki/Tai-Chi_Chuan">Türkçe</a></li>
-				<li class="interwiki-zh"><a href="http://zh.wikipedia.org/wiki/%E5%A4%AA%E6%9E%81%E6%8B%B3">??</a></li>
-			</ul>
-		</div>
-	</div>
-
-		</div><!-- end of the left (by default at least) column -->
-			<div class="visualClear"></div>
-			<div id="footer">
-				<div id="f-poweredbyico"><a href="http://www.mediawiki.org/"><img src="/skins-1.5/common/images/poweredby_mediawiki_88x31.png" alt="MediaWiki" /></a></div>
-				<div id="f-copyrightico"><a href="http://wikimediafoundation.org/"><img src="/images/wikimedia-button.png" border="0" alt="Wikimedia Foundation"/></a></div>
-			<ul id="f-list">
-				<li id="lastmod"> This page was last modified 03:15, July 22, 2006.</li>
-				<li id="copyright">All text is available under the terms of the <a class='internal' href="/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License" title="Wikipedia:Text of the GNU Free Documentation License">GNU Free Documentation License</a>. (See <b><a class='internal' href="/wiki/Wikipedia:Copyrights" title="Wikipedia:Copyrights">Copyrights</a></b> for details.) <br /> Wikipedia&reg; is a registered trademark of the Wikimedia Foundation, Inc.<br /></li>
-
-				<li id="privacy"><a href="http://wikimediafoundation.org/wiki/Privacy_policy" title="wikimedia:Privacy policy">Privacy policy</a></li>
-				<li id="about"><a href="/wiki/Wikipedia:About" title="Wikipedia:About">About Wikipedia</a></li>
-				<li id="disclaimer"><a href="/wiki/Wikipedia:General_disclaimer" title="Wikipedia:General disclaimer">Disclaimers</a></li>
-			</ul>
-		</div>
-	<script type="text/javascript"> if (window.runOnloadHook) runOnloadHook();</script>
-</div>
-
-<!-- Served by srv25 in 0.089 secs. -->
-</body></html>

lib/htmlpurifier-3.0.0/benchmarks/samples/Lexer/DISCLAIMER.txt

@@ -1,5 +0,0 @@
-Disclaimer:
-
-The HTML used in these samples are taken from random websites.  I claim
-no copyright over these and assert that I may use them like this under
-fair use.

lib/htmlpurifier-3.0.0/configdoc/generate.php

@@ -1,45 +0,0 @@
-<?php
-
-/**
- * Generates XML and HTML documents describing configuration.
- * @note PHP 5 only!
- */
-
-/*
-TODO:
-- make XML format richer (see XMLSerializer_ConfigSchema)
-- extend XSLT transformation (see the corresponding XSLT file)
-- allow generation of packaged docs that can be easily moved
-- multipage documentation
-- determine how to multilingualize
-- add blurbs to ToC
-*/
-
-if (version_compare('5', PHP_VERSION, '>')) exit('Requires PHP 5 or higher.');
-error_reporting(E_ALL); // probably not possible to use E_STRICT
-
-define('HTMLPURIFIER_SCHEMA_STRICT', true); // description data needs to be collected
-
-// load dual-libraries
-require_once '../library/HTMLPurifier.auto.php';
-require_once 'library/ConfigDoc.auto.php';
-
-$purifier = HTMLPurifier::getInstance(array(
-    'AutoFormat.PurifierLinkify' => true
-));
-
-$schema = HTMLPurifier_ConfigSchema::instance();
-$style = 'plain'; // use $_GET in the future
-$configdoc = new ConfigDoc();
-$output = $configdoc->generate($schema, $style);
-
-// write out
-file_put_contents("$style.html", $output);
-
-if (php_sapi_name() != 'cli') {
-    // output = instant feedback
-    echo $output;
-} else {
-    echo 'Files generated successfully.';
-}
-

lib/htmlpurifier-3.0.0/configdoc/library/ConfigDoc.auto.php

@@ -1,9 +0,0 @@
-<?php
-
-/**
- * This is a stub include that automatically configures the include path.
- */
-
-set_include_path(dirname(__FILE__) . PATH_SEPARATOR . get_include_path() );
-require_once 'ConfigDoc.php';
-

lib/htmlpurifier-3.0.0/configdoc/library/ConfigDoc.php

@@ -1,50 +0,0 @@
-<?php
-
-require_once 'ConfigDoc/HTMLXSLTProcessor.php';
-require_once 'ConfigDoc/XMLSerializer/Types.php';
-require_once 'ConfigDoc/XMLSerializer/ConfigSchema.php';
-
-/**
- * Facade class for configuration documentation system
- */
-class ConfigDoc
-{
-    
-    /**
-     * Generates configuration documentation based on a HTMLPurifier_ConfigSchema
-     * object and styleshet name
-     * @param $schema Instance of HTMLPurifier_ConfigSchema to document
-     * @param $xsl_stylesheet_name Name of XSL stylesheet in ../styles/ directory to use
-     * @param $parameters Extra parameters to pass to the stylesheet
-     * @return string HTML output
-     */
-    public function generate($schema, $xsl_stylesheet_name = 'plain', $parameters = array()) {
-        // generate types document, describing type constraints
-        $types_serializer = new ConfigDoc_XMLSerializer_Types();
-        $types_document = $types_serializer->serialize($schema);
-        $types_document->save(dirname(__FILE__) . '/../types.xml'); // only ONE
-        
-        // generate configdoc.xml, documents configuration directives
-        $schema_serializer = new ConfigDoc_XMLSerializer_ConfigSchema();
-        $schema_document = $schema_serializer->serialize($schema);
-        $schema_document->save('configdoc.xml');
-        
-        // setup transformation
-        $xsl_stylesheet = dirname(__FILE__) . "/../styles/$xsl_stylesheet_name.xsl";
-        $xslt_processor = new ConfigDoc_HTMLXSLTProcessor();
-        $xslt_processor->setParameters($parameters);
-        $xslt_processor->importStylesheet($xsl_stylesheet);
-        
-        return $xslt_processor->transformToHTML($schema_document);
-    }
-    
-    /**
-     * Remove any generated files
-     * @return boolean Success?
-     */
-    public function cleanup() {
-        return unlink('configdoc.xml');
-    }
-    
-}
-

lib/htmlpurifier-3.0.0/configdoc/library/ConfigDoc/HTMLXSLTProcessor.php

@@ -1,75 +0,0 @@
-<?php
-
-/**
- * Special XSLT processor specifically for HTML documents. Loosely
- * based off of XSLTProcessor, but does not inherit from that class
- */
-class ConfigDoc_HTMLXSLTProcessor
-{
-    
-    /**
-     * Instance of XSLTProcessor
-     */
-    protected $xsltProcessor;
-    
-    public function __construct() {
-        $this->xsltProcessor = new XSLTProcessor();
-    }
-    
-    /**
-     * Imports stylesheet for processor to use
-     * @param $xsl XSLT DOM tree, or filename of the XSL transformation
-     * @return bool Success?
-     */
-    public function importStylesheet($xsl) {
-        if (is_string($xsl)) {
-            $xsl_file = $xsl;
-            $xsl = new DOMDocument();
-            $xsl->load($xsl_file);
-        }
-        return $this->xsltProcessor->importStylesheet($xsl);
-    }
-    
-    /**
-     * Transforms an XML file into compatible XHTML based on the stylesheet
-     * @param $xml XML DOM tree
-     * @return string HTML output
-     * @todo Rename to transformToXHTML, as transformToHTML is misleading
-     */
-    public function transformToHTML($xml) {
-        $out = $this->xsltProcessor->transformToXML($xml);
-        
-        // fudges for HTML backwards compatibility
-        // assumes that document is XHTML
-        $out = str_replace('/>', ' />', $out); // <br /> not <br/>
-        $out = str_replace(' xmlns=""', '', $out); // rm unnecessary xmlns
-        $out = str_replace(' xmlns="http://www.w3.org/1999/xhtml"', '', $out); // rm unnecessary xmlns
-        
-        if (class_exists('Tidy')) {
-            // cleanup output
-            $config = array(
-                'indent'        => true,
-                'output-xhtml'  => true,
-                'wrap'          => 80
-            );
-            $tidy = new Tidy;
-            $tidy->parseString($out, $config, 'utf8');
-            $tidy->cleanRepair();
-            $out = (string) $tidy;
-        }
-        
-        return $out;
-    }
-    
-    /**
-     * Bulk sets parameters for the XSL stylesheet
-     * @param array $options Associative array of options to set
-     */
-    public function setParameters($options) {
-        foreach ($options as $name => $value) {
-            $this->xsltProcessor->setParameter('', $name, $value);
-        }
-    }
-    
-}
-

lib/htmlpurifier-3.0.0/configdoc/library/ConfigDoc/XMLSerializer.php

@@ -1,31 +0,0 @@
-<?php
-
-/**
- * The XMLSerializer hierarchy of classes consist of classes that take
- * objects and serialize them into XML, specifically DOM, form; this
- * super-class contains convenience functions for those classes.
- */
-class ConfigDoc_XMLSerializer
-{
-    
-    /**
-     * Appends a div containing HTML into a node
-     * @param $document Base document node belongs to
-     * @param $node Node to append to
-     * @param $html HTML to place inside div to append
-     * @todo Place this directly in DOMNode, using registerNodeClass to
-     *       override.
-     */
-    protected function appendHTMLDiv($document, $node, $html) {
-        $purifier = HTMLPurifier::getInstance();
-        $html = $purifier->purify($html);
-        $dom_html = $document->createDocumentFragment();
-        $dom_html->appendXML($html);
-        $dom_div = $document->createElement('div');
-        $dom_div->setAttribute('xmlns', 'http://www.w3.org/1999/xhtml');
-        $dom_div->appendChild($dom_html);
-        $node->appendChild($dom_div);
-    }
-    
-}
-

lib/htmlpurifier-3.0.0/configdoc/library/ConfigDoc/XMLSerializer/ConfigSchema.php

@@ -1,124 +0,0 @@
-<?php
-
-require_once 'ConfigDoc/XMLSerializer.php';
-
-class ConfigDoc_XMLSerializer_ConfigSchema extends ConfigDoc_XMLSerializer
-{
-    
-    /**
-     * Serializes a schema into DOM form
-     * @todo Split into sub-serializers
-     * @param $schema HTMLPurifier_ConfigSchema to serialize
-     * @return DOMDocument representation of schema
-     */
-    public function serialize($schema) {
-        $dom_document = new DOMDocument('1.0', 'UTF-8');
-        $dom_root = $dom_document->createElement('configdoc');
-        $dom_document->appendChild($dom_root);
-        $dom_document->formatOutput = true;
-        
-        // add the name of the application
-        $dom_root->appendChild($dom_document->createElement('title', 'HTML Purifier'));
-        
-        /*
-        TODO for XML format:
-        - create a definition (DTD or other) once interface stabilizes
-        */
-        
-        foreach($schema->info as $namespace_name => $namespace_info) {
-            
-            $dom_namespace = $dom_document->createElement('namespace');
-            $dom_root->appendChild($dom_namespace);
-            
-            $dom_namespace->setAttribute('id', $namespace_name);
-            $dom_namespace->appendChild(
-                $dom_document->createElement('name', $namespace_name)
-            );
-            $dom_namespace_description = $dom_document->createElement('description');
-            $dom_namespace->appendChild($dom_namespace_description);
-            $this->appendHTMLDiv($dom_document, $dom_namespace_description,
-                $schema->info_namespace[$namespace_name]->description);
-            
-            foreach ($namespace_info as $name => $info) {
-                
-                if ($info->class == 'alias') continue;
-                
-                $dom_directive = $dom_document->createElement('directive');
-                $dom_namespace->appendChild($dom_directive);
-                
-                $dom_directive->setAttribute('id', $namespace_name . '.' . $name);
-                $dom_directive->appendChild(
-                    $dom_document->createElement('name', $name)
-                );
-                
-                $dom_aliases = $dom_document->createElement('aliases');
-                $dom_directive->appendChild($dom_aliases);
-                foreach ($info->directiveAliases as $alias) {
-                    $dom_aliases->appendChild($dom_document->createElement('alias', $alias));
-                }
-                
-                $dom_constraints = $dom_document->createElement('constraints');
-                $dom_directive->appendChild($dom_constraints);
-                
-                $dom_type = $dom_document->createElement('type', $info->type);
-                if ($info->allow_null) {
-                    $dom_type->setAttribute('allow-null', 'yes');
-                }
-                $dom_constraints->appendChild($dom_type);
-                
-                if ($info->allowed !== true) {
-                    $dom_allowed = $dom_document->createElement('allowed');
-                    $dom_constraints->appendChild($dom_allowed);
-                    foreach ($info->allowed as $allowed => $bool) {
-                        $dom_allowed->appendChild(
-                            $dom_document->createElement('value', $allowed)
-                        );
-                    }
-                }
-                
-                $raw_default = $schema->defaults[$namespace_name][$name];
-                if (is_bool($raw_default)) {
-                    $default = $raw_default ? 'true' : 'false';
-                } elseif (is_string($raw_default)) {
-                    $default = "\"$raw_default\"";
-                } elseif (is_null($raw_default)) {
-                    $default = 'null';
-                } else {
-                    $default = print_r(
-                            $schema->defaults[$namespace_name][$name], true
-                        );
-                }
-                
-                $dom_default = $dom_document->createElement('default', $default);
-                
-                // remove this once we get a DTD
-                $dom_default->setAttribute('xml:space', 'preserve');
-                
-                $dom_constraints->appendChild($dom_default);
-                
-                $dom_descriptions = $dom_document->createElement('descriptions');
-                $dom_directive->appendChild($dom_descriptions);
-                
-                foreach ($info->descriptions as $file => $file_descriptions) {
-                    foreach ($file_descriptions as $line => $description) {
-                        $dom_description = $dom_document->createElement('description');
-                        // refuse to write $file if it's a full path
-                        if (str_replace('\\', '/', realpath($file)) != $file) {
-                            $dom_description->setAttribute('file', $file);
-                            $dom_description->setAttribute('line', $line);
-                        }
-                        $this->appendHTMLDiv($dom_document, $dom_description, $description);
-                        $dom_descriptions->appendChild($dom_description);
-                    }
-                }
-                
-            }
-            
-        }
-        
-        return $dom_document;
-        
-    }
-    
-}
-

lib/htmlpurifier-3.0.0/configdoc/library/ConfigDoc/XMLSerializer/Types.php

@@ -1,27 +0,0 @@
-<?php
-
-require_once 'ConfigDoc/XMLSerializer.php';
-
-class ConfigDoc_XMLSerializer_Types extends ConfigDoc_XMLSerializer
-{
-    
-    /**
-     * Serializes the types in a schema into DOM form
-     * @param $schema HTMLPurifier_ConfigSchema owner of types to serialize
-     * @return DOMDocument representing schema types
-     */
-    public function serialize($schema) {
-        $types_document = new DOMDocument('1.0', 'UTF-8');
-        $types_root = $types_document->createElement('types');
-        $types_document->appendChild($types_root);
-        $types_document->formatOutput = true;
-        foreach ($schema->types as $name => $expanded_name) {
-            $types_type = $types_document->createElement('type', $expanded_name);
-            $types_type->setAttribute('id', $name);
-            $types_root->appendChild($types_type);
-        }
-        return $types_document;
-    }
-    
-}
-

lib/htmlpurifier-3.0.0/configdoc/styles/plain.css

@@ -1,24 +0,0 @@
-
-body {margin:1em 4em;}
-
-table {border-collapse:collapse;}
-table td, table th {padding:0.2em;}
-
-table.constraints {margin:0 0 1em;}
-table.constraints th {text-align:left;padding-left:0.4em;}
-table.constraints td {padding-right:0.4em;}
-table.constraints td pre {margin:0;}
-
-#toc {list-style-type:none; font-weight:bold;}
-#toc ul {list-style-type:disc; font-weight:normal;}
-
-.description p {margin-top:0;margin-bottom:1em;}
-
-#library, h1 {text-align:center; font-family:Garamond, serif;
-  font-variant:small-caps;}
-#library {font-size:1em;}
-h1 {margin-top:0;}
-h2 {border-bottom:1px solid #CCC; font-family:sans-serif; font-weight:normal;
-    font-size:1.3em;}
-h3 {font-family:sans-serif; font-size:1.1em; font-weight:bold; }
-h4 {font-family:sans-serif; font-size:0.9em; font-weight:bold; }

lib/htmlpurifier-3.0.0/configdoc/styles/plain.xsl

@@ -1,151 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet
-    version     = "1.0"
-    xmlns       = "http://www.w3.org/1999/xhtml"
-    xmlns:xsl   = "http://www.w3.org/1999/XSL/Transform"
->
-    <xsl:output
-        method      = "xml"
-        encoding    = "UTF-8"
-        doctype-public = "-//W3C//DTD XHTML 1.0 Transitional//EN"
-        doctype-system = "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
-        indent = "no"
-        media-type = "text/html"
-    />
-    <xsl:param name="css" select="'styles/plain.css'"/>
-    <xsl:param name="title" select="'Configuration Documentation'"/>
-    
-    <xsl:variable name="typeLookup" select="document('../types.xml')" />
-    
-    <xsl:template match="/">
-        <html lang="en" xml:lang="en">
-            <head>
-                <title><xsl:value-of select="$title" /> - <xsl:value-of select="/configdoc/title" /></title>
-                <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
-                <link rel="stylesheet" type="text/css" href="{$css}" />
-            </head>
-            <body>
-                <div id="library"><xsl:value-of select="/configdoc/title" /></div>
-                <h1><xsl:value-of select="$title" /></h1>
-                <h2>Table of Contents</h2>
-                <ul id="toc">
-                    <xsl:apply-templates mode="toc" />
-                </ul>
-                <xsl:apply-templates />
-            </body>
-        </html>
-    </xsl:template>
-    
-    <xsl:template match="title" mode="toc" />
-    <xsl:template match="namespace" mode="toc">
-        <xsl:if test="count(directive)&gt;0">
-            <li>
-                <a href="#{@id}"><xsl:value-of select="name" /></a>
-                <ul>
-                    <xsl:apply-templates select="directive" mode="toc" />
-                </ul>
-            </li>
-        </xsl:if>
-    </xsl:template>
-    <xsl:template match="directive" mode="toc">
-        <li><a href="#{@id}"><xsl:value-of select="name" /></a></li>
-    </xsl:template>
-    
-    <xsl:template match="title" />
-    
-    <xsl:template match="namespace">
-        <xsl:apply-templates />
-        <xsl:if test="count(directive)=0">
-            <p>No configuration directives defined for this namespace.</p>
-        </xsl:if>
-    </xsl:template>
-    <xsl:template match="namespace/name">
-        <h2 id="{../@id}"><xsl:value-of select="." /></h2>
-    </xsl:template>
-    <xsl:template match="namespace/description">
-        <div class="description">
-            <xsl:copy-of select="div/node()" />
-        </div>
-    </xsl:template>
-    
-    <xsl:template match="directive">
-        <xsl:apply-templates />
-    </xsl:template>
-    <xsl:template match="directive/name">
-        <xsl:apply-templates select="../aliases/alias" mode="anchor" />
-        <h3 id="{../@id}"><xsl:value-of select="../@id" /></h3>
-    </xsl:template>
-    <xsl:template match="alias" mode="anchor">
-        <a id="{.}"></a>
-    </xsl:template>
-    
-    <!-- Do not pass through -->
-    <xsl:template match="alias"></xsl:template>
-    
-    <xsl:template match="directive/constraints">
-        <table class="constraints">
-            <xsl:apply-templates />
-            <!-- Calculated other values -->
-            <xsl:if test="../descriptions/description[@file]">
-                <tr>
-                    <th>Used by:</th>
-                    <td>
-                        <xsl:for-each select="../descriptions/description">
-                            <xsl:if test="position()&gt;1">, </xsl:if>
-                            <xsl:value-of select="@file" />
-                        </xsl:for-each>
-                    </td>
-                </tr>
-            </xsl:if>
-            <xsl:if test="../aliases/alias">
-                <xsl:apply-templates select="../aliases" mode="constraints" />
-            </xsl:if>
-        </table>
-    </xsl:template>
-    <xsl:template match="directive/aliases" mode="constraints">
-        <th>Aliases:</th>
-        <td>
-            <xsl:for-each select="alias">
-                <xsl:if test="position()&gt;1">, </xsl:if>
-                <xsl:value-of select="." />
-            </xsl:for-each>
-        </td>
-    </xsl:template>
-    <xsl:template match="directive//description">
-        <div class="description">
-            <xsl:copy-of select="div/node()" />
-        </div>
-    </xsl:template>
-    
-    <xsl:template match="constraints/type">
-        <tr>
-            <th>Type:</th>
-            <td>
-                <xsl:variable name="type" select="text()" />
-                <xsl:attribute name="class">type type-<xsl:value-of select="$type" /></xsl:attribute>
-                <xsl:value-of select="$typeLookup/types/type[@id=$type]/text()" />
-                <xsl:if test="@allow-null='yes'">
-                    (or null)
-                </xsl:if>
-            </td>
-        </tr>
-    </xsl:template>
-    <xsl:template match="constraints/allowed">
-        <tr>
-            <th>Allowed values:</th>
-            <td>
-                <xsl:for-each select="value"><!--
-                 --><xsl:if test="position()&gt;1">, </xsl:if>
-                    &quot;<xsl:value-of select="." />&quot;<!--
-             --></xsl:for-each>
-            </td>
-        </tr>
-    </xsl:template>
-    <xsl:template match="constraints/default">
-        <tr>
-            <th>Default:</th>
-            <td><pre><xsl:value-of select="." xml:space="preserve" /></pre></td>
-        </tr>
-    </xsl:template>
-    
-</xsl:stylesheet>

lib/htmlpurifier-3.0.0/docs/dev-advanced-api.html

@@ -1,213 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Functional specification for HTML Purifier's advanced API for defining custom filtering behavior." />
-<link rel="stylesheet" type="text/css" href="style.css" />
-
-<title>Advanced API - HTML Purifier</title>
-
-</head><body>
-
-<h1>Advanced API</h1>
-
-<div id="filing">Filed under Development</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>HTML Purifier currently natively supports only a subset of HTML's
-allowed elements, attributes, and behavior; specifically, this subset
-is the set of elements that are safe for untrusted users to use.
-However, HTML Purifier is often utilized to ensure standards-compliance
-from input that is trusted (making it a sort of Tidy substitute),
-and often users need to define new elements or attributes. The
-advanced API is oriented specifically for these use-cases.</p>
-
-<p>Our goals are to let the user:</p>
-
-<dl>
-    <dt>Select</dt>
-    <dd><ul>
-        <li>Doctype</li>
-        <!-- <li>Filterset</li> -->
-        <li>Elements / Attributes / Modules</li>
-        <li>Tidy</li>
-    </ul></dd>
-    <dt>Customize</dt>
-    <dd><ul>
-        <li>Attributes</li>
-        <li>Elements</li>
-        <!--<li>Doctypes</li>-->
-    </ul></dd>
-</dl>
-
-<h2>Select</h2>
-
-<p>For basic use, the user will have to specify some basic parameters. This
-is not strictly necessary, as HTML Purifier's default setting will always
-output safe code, but is required for standards-compliant output.</p>
-
-<h3>Selecting a Doctype</h3>
-
-<p>The first thing to select is the <strong>doctype</strong>. This
-is essential for standards-compliant output.</p>
-
-<p class="technical">This identifier is based
-on the name the W3C has given to the document type and <em>not</em>
-the DTD identifier.</p>
-
-<p>This parameter is set via the configuration object:</p>
-
-<pre>$config->set('HTML', 'Doctype', 'XHTML 1.0 Transitional');</pre>
-
-<p>Due to historical reasons, the default doctype is XHTML 1.0
-Transitional, however, we really shouldn't be guessing what the user's
-doctype is. Fortunantely, people who can't be bothered to set this won't
-be bothered when their pages stop validating.</p>
-
-<h3>Selecting Elements / Attributes / Modules</h3>
-
-<p>HTML Purifier will, by default, allow as many elements and attributes
-as possible. However, a user may decide to roll their own filterset by
-selecting modules, elements and attributes to allow for their own
-specific use-case. This can be done using %HTML.Allowed:</p>
-
-<pre>$config->set('HTML', 'Allowed', 'a[href|title],em,p,blockquote');</pre>
-
-<p class="technical">The directive %HTML.Allowed is a convenience feature
-that may be fully expressed with the legacy interface.</p>
-
-<p>We currently support another interface from older versions:</p>
-
-<pre>$config->set('HTML', 'AllowedElements', 'a,em,p,blockquote');
-$config->set('HTML', 'AllowedAttributes', 'a.href,a.title');</pre>
-
-<p>A user may also choose to allow modules using a specialized
-directive:</p>
-
-<pre>$config->set('HTML', 'AllowedModules', 'Hypertext,Text,Lists');</pre>
-
-<p>But it is not expected that this feature will be widely used.</p>
-
-<p class="technical">Module selection will work slightly differently
-from the other AllowedElements and AllowedAttributes directives by
-directly modifying the doctype you are operating in, in the spirit of
-XHTML 1.1's modularization. We stop users from shooting themselves in the
-foot by mandating the modules in %HTML.CoreModules be used.</p>
-
-<p class="technical">Modules are distinguished from regular elements by the
-case of their first letter. While XML distinguishes between and allows
-lower and uppercase letters in element names, XHTML uses only lower-case
-element names for sake of consistency.</p>
-
-<h3>Selecting Tidy</h3>
-
-<p>The name of this segment of functionality is inspired off of Dave
-Ragget's program HTML Tidy, which purported to help clean up HTML. In
-HTML Purifier, Tidy functionality involves turning unsupported and
-deprecated elements into standards-compliant ones, maintaining
-backwards compatibility, and enforcing best practices.</p>
-
-<p>This is a complicated feature, and is explained more in depth at
-<a href="enduser-tidy.html">the Tidy documentation page</a>.</p>
-
-<!--
-<h3>Unified selector</h3>
-
-<p>Because selecting each and every one of these configuration options
-is a chore, we may wish to offer a specialized configuration method
-for selecting a filterset. Possibility:</p>
-
-<pre>function selectFilter($doctype, $filterset, $tidy)</pre>
-
-<p>...which is simply a light wrapper over the individual configuration
-calls. A custom config file format or text format could also be adopted.</p>
--->
-
-<h2>Customize</h2>
-
-<p>By reviewing topic posts in the support forum, we determined that
-there were two primarily demanded customization features people wanted:
-to add an attribute to an existing element, and to add an element.
-Thus, we'll want to create convenience functions for these common
-use-cases.</p>
-
-<p>Note that the functions described here are only available if
-a raw copy of <code>HTMLPurifier_HTMLDefinition</code> was retrieved.
-Furthermore, caching may prevent your changes from immediately
-being seen: consult <a href="enduser-customize.html">enduser-customize.html</a> on how
-to work around this.</p>
-
-<h3>Attributes</h3>
-
-<p>An attribute is bound to an element by a name and has a specific
-<code>AttrDef</code> that validates it. The interface is therefore:</p>
-
-<pre>function addAttribute($element, $attribute, $attribute_def);</pre>
-
-<p>Example of the functionality in action:</p>
-
-<pre>$def->addAttribute('a', 'rel', 'Enum#nofollow');</pre>
-
-<p>The <code>$attribute_def</code> value is flexible,
-to make things simpler. It can be a literal object or:</p>
-
-<ul>
-    <!--<li>Class name: We'll instantiate it for you</li>
-    <li>Function name: We'll create an <code>HTMLPurifier_AttrDef_Anonymous</code>
-        class with that function registered as a callback.</li>-->
-    <li>String attribute type: We'll use <code>HTMLPurifier_AttrTypes</code>
-        to resolve it for you. Any data that follows a hash mark (#) will
-        be used to customize the attribute type: in the example above, 
-        we specify which values for Enum to allow.</li>
-</ul>
-
-<h3>Elements</h3>
-
-<p>An element requires certain information as specified by
-<code>HTMLPurifier_ElementDef</code>. However, not all of it is necessary,
-the usual things required are:</p>
-
-<ul>
-    <li>Attributes</li>
-    <li>Content model/type</li>
-    <li>Registration in a content set</li>
-</ul>
-
-<p>This suggests an API like this:</p>
-
-<pre>function addElement($element, $type, $contents,
-    $attr_collections = array(); $attributes = array());</pre>
-
-<p>Each parameter explained in depth:</p>
-
-<dl>
-    <dt><code>$element</code></dt>
-    <dd>Element name, ex. 'label'</dd>
-    <dt><code>$type</code></dt>
-    <dd>Content set to register in, ex. 'Inline' or 'Flow'</dd>
-    <dt><code>$contents</code></dt>
-    <dd>Description of allowed children. This is a merged form of
-        <code>HTMLPurifier_ElementDef</code>'s member variables
-        <code>$content_model</code> and <code>$content_model_type</code>,
-        where the form is <q>Type: Model</q>, ex. 'Optional: Inline'.
-        There are also a number of predefined templates one may use.</dd>
-    <dt><code>$attr_collections</code></dt>
-    <dd>Array (or string if only one) of attribute collection(s) to
-        merge into the attributes array.</dd>
-    <dt><code>$attributes</code></dt>
-    <dd>Array of attribute names to attribute definitions, much like
-        the above-described attribute customization.</dd>
-</dl>
-
-<p>A possible usage:</p>
-
-<pre>$def->addElement('font', 'Inline', 'Optional: Inline', 'Common',
-    array('color' => 'Color'));</pre>
-
-<p>See <code>HTMLPurifier/HTMLModule.php</code> for details.</p>
-
-<div id="version">$Id: dev-advanced-api.html 1253 2007-06-27 13:58:32Z Edward $</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/dev-code-quality.txt

@@ -1,28 +0,0 @@
-
-Code Quality Issues
-
-Okay, face it.  Programmers can get lazy, cut corners, or make mistakes. They
-also can do quick prototypes, and then forget to rewrite them later.  Well,
-while I can't list mistakes in here, I can list prototype-like segments
-of code that should be aggressively refactored.  This does not list
-optimization issues, that needs to be done after intense profiling.
-
-docs/examples/demo.php - ad hoc HTML/PHP soup to the extreme
-
-AttrDef - a lot of duplication, more generic classes need to be created;
-a lot of strtolower() calls, no legit casing
-    Class - doesn't support Unicode characters (fringe); uses regular expressions
-    Lang - code duplication; premature optimization
-    Length - easily mistaken for CSSLength
-    URI - multiple regular expressions; missing validation for parts (?)
-    CSS - parser doesn't accept advanced CSS (fringe)
-    Number - constructor interface inconsistent with Integer
-ConfigSchema - redefinition is a mess
-Strategy
-    FixNesting - cannot bubble nodes out of structures, duplicated checks
-        for special-case parent node
-    RemoveForeignElements - should be run in parallel with MakeWellFormed
-URIScheme - needs to have callable generic checks
-    mailto - doesn't validate emails, doesn't validate querystring
-    news - doesn't validate opaque path
-    nntp - doesn't constrain path

lib/htmlpurifier-3.0.0/docs/dev-naming.html

@@ -1,82 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Defines class naming conventions in HTML Purifier." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Naming Conventions - HTML Purifier</title>
-
-</head><body>
-
-<h1>Naming Conventions</h1>
-
-<div id="filing">Filed under Development</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>The classes in this library follow a few naming conventions, which may
-help you find the correct functionality more quickly.  Here they are:</p>
-
-<dl>
-
-<dt>All classes occupy the HTMLPurifier pseudo-namespace.</dt>
-    <dd>This means that all classes are prefixed with HTMLPurifier_.  As such, all
-    names under HTMLPurifier_ are reserved.  I recommend that you use the name
-    HTMLPurifierX_YourName_ClassName, especially if you want to take advantage
-    of HTMLPurifier_ConfigDef.</dd>
-
-<dt>All classes correspond to their path if library/ was in the include path</dt>
-    <dd>HTMLPurifier_AttrDef is located at HTMLPurifier/AttrDef.php; replace
-    underscores with slashes and append .php and you'll have the location of
-    the class.</dd>
-
-<dt>Harness and Test are reserved class names for unit tests</dt>
-    <dd>The suffix <code>Test</code> indicates that the class is a subclass of UnitTestCase
-    (of the Simpletest library) and is testable. "Harness" indicates a subclass
-    of UnitTestCase that is not meant to be run but to be extended into 
-    concrete test cases and contains custom test methods (i.e. assert*())</dd>
-
-<dt>Class names do not necessarily represent inheritance hierarchies</dt>
-    <dd>While we try to reflect inheritance in naming to some extent, it is not
-    guaranteed (for instance, none of the classes inherit from HTMLPurifier,
-    the base class).  However, all class files have the require_once
-    declarations to whichever classes they are tightly coupled to.</dd>
-
-<dt>Strategy has a meaning different from the Gang of Four pattern</dt>
-    <dd>In Design Patterns, the Gang of Four describes a Strategy object as
-    encapsulating an algorithm so that they can be switched at run-time.  While
-    our strategies are indeed algorithms, they are not meant to be substituted:
-    all must be present in order for proper functioning.</dd>
-
-<dt>Abbreviations are avoided</dt>
-    <dd>We try to avoid abbreviations as much as possible, but in some cases, 
-    abbreviated version is more readable than the full version. Here, we
-    list common abbreviations:
-    <ul>
-        <li>Attr to Attributes (note that it is plural, i.e. <code>$attr = array()</code>)</li>
-        <li>Def to Definition</li>
-        <li><code>$ret</code> is the value to be returned in a function</li>
-    </ul>
-    </dd>
-
-<dt>Ambiguity concerning the definition of Def/Definition</dt>
-    <dd>While a definition normally defines the structure/acceptable values of
-    an entity, most of the definitions in this application also attempt
-    to validate and fix the value.  I am unsure of a better name, as
-    "Validator" would exclude fixing the value, "Fixer" doesn't invoke
-    the proper image of "fixing" something, and "ValidatorFixer" is too long!
-    Some other suggestions were "Handler", "Reference", "Check", "Fix",
-    "Repair" and "Heal".</dd>
-
-<dt>Transform not Transformer</dt>
-    <dd>Transform is both a noun and a verb, and thus we define a "Transform" as
-    something that "transforms," leaving "Transformer" (which sounds like an
-    electrical device/robot toy).</dd>
-
-</dl>
-
-<div id="version">$Id: dev-naming.html 1253 2007-06-27 13:58:32Z Edward $</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/dev-optimization.html

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Discusses possible methods of optimizing HTML Purifier." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Optimization - HTML Purifier</title>
-
-</head><body>
-
-<h1>Optimization</h1>
-
-<div id="filing">Filed under Development</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>Here are some possible optimization techniques we can apply to code sections if
-they turn out to be slow.  Be sure not to prematurely optimize: if you get
-that itch, put it here!</p>
-
-<ul>
-    <li>Make Tokens Flyweights (may prove problematic, probably not worth it)</li>
-    <li>Rewrite regexps into PHP code</li>
-    <li>Serialize the Definition object</li>
-    <li>Batch regexp validation (do as many per function call as possible)</li>
-    <li>Parallelize strategies</li>
-</ul>
-
-<div id="version">$Id: dev-optimization.html 1253 2007-06-27 13:58:32Z Edward $</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/dev-progress.html

@@ -1,303 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Tables detailing HTML element and CSS property implementation coverage in HTML Purifier." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Implementation Progress - HTML Purifier</title>
-
-<style type="text/css">
-
-td {padding-right:1em;border-bottom:1px solid #000;padding-left:0.5em;}
-th {text-align:left;padding-top:1.4em;font-size:13pt;
-    border-bottom:2px solid #000;background:#FFF;}
-thead th {text-align:left;padding:0.1em;background-color:#EEE;}
-
-.impl-yes {background:#9D9;}
-.impl-partial {background:#FFA;}
-.impl-no {background:#CCC;}
-
-.danger {color:#600;}
-.css1 {color:#060;}
-.required {font-weight:bold;}
-.feature {color:#999;}
-
-</style>
-
-</head><body>
-
-<h1>Implementation Progress</h1>
-
-<div id="filing">Filed under Development</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<h2>Key</h2>
-
-<table cellspacing="0"><tbody>
-<tr><td class="impl-yes">Implemented</td></tr>
-<tr><td class="impl-partial">Partially implemented</td></tr>
-<tr><td class="impl-no">Not priority to implement</td></tr>
-<tr><td class="danger">Dangerous attribute/property</td></tr>
-<tr><td class="css1">Present in CSS1</td></tr>
-<tr><td class="feature">Feature, requires extra work</td></tr>
-</tbody></table>
-
-<h2>CSS</h2>
-
-<table cellspacing="0">
-
-<thead>
-<tr><th>Name</th><th>Notes</th></tr>
-</thead>
-
-<!--
-<tr><td>-</td><td>-</td></tr>
--->
-
-<tbody>
-<tr><th colspan="2">Standard</th></tr>
-<tr class="css1 impl-yes"><td>background-color</td><td>COMPOSITE(&lt;color&gt;, transparent)</td></tr>
-<tr class="css1 impl-yes"><td>background</td><td>SHORTHAND, currently alias for background-color</td></tr>
-<tr class="css1 impl-yes"><td>border</td><td>SHORTHAND, MULTIPLE</td></tr>
-<tr class="css1 impl-yes"><td>border-color</td><td>MULTIPLE</td></tr>
-<tr class="css1 impl-yes"><td>border-style</td><td>MULTIPLE</td></tr>
-<tr class="css1 impl-yes"><td>border-width</td><td>MULTIPLE</td></tr>
-<tr class="css1 impl-yes"><td>border-*</td><td>SHORTHAND</td></tr>
-<tr class="impl-yes"><td>border-*-color</td><td>COMPOSITE(&lt;color&gt;, transparent)</td></tr>
-<tr class="impl-yes"><td>border-*-style</td><td>ENUM(none, hidden, dotted, dashed,
-    solid, double, groove, ridge, inset, outset)</td></tr>
-<tr class="css1 impl-yes"><td>border-*-width</td><td>COMPOSITE(&lt;length&gt;, thin, medium, thick)</td></tr>
-<tr class="css1 impl-yes"><td>clear</td><td>ENUM(none, left, right, both)</td></tr>
-<tr class="css1 impl-yes"><td>color</td><td>&lt;color&gt;</td></tr>
-<tr class="css1 impl-yes"><td>float</td><td>ENUM(left, right, none), May require layout
-    precautions with clear</td></tr>
-<tr class="css1 impl-yes"><td>font</td><td>SHORTHAND</td></tr>
-<tr class="css1 impl-yes"><td>font-family</td><td>CSS validator may complain if fallback font
-    family not specified</td></tr>
-<tr class="css1 impl-yes"><td>font-size</td><td>COMPOSITE(&lt;absolute-size&gt;,
-    &lt;relative-size&gt;, &lt;length&gt;, &lt;percentage&gt;)</td></tr>
-<tr class="css1 impl-yes"><td>font-style</td><td>ENUM(normal, italic, oblique)</td></tr>
-<tr class="css1 impl-yes"><td>font-variant</td><td>ENUM(normal, small-caps)</td></tr>
-<tr class="css1 impl-yes"><td>font-weight</td><td>ENUM(normal, bold, bolder, lighter,
-    100, 200, 300, 400, 500, 600, 700, 800, 900), maybe special code for
-    in-between integers</td></tr>
-<tr class="css1 impl-yes"><td>letter-spacing</td><td>COMPOSITE(&lt;length&gt;, normal)</td></tr>
-<tr class="css1 impl-yes"><td>line-height</td><td>COMPOSITE(&lt;number&gt;,
-    &lt;length&gt;, &lt;percentage&gt;, normal)</td></tr>
-<tr class="css1 impl-yes"><td>list-style-position</td><td>ENUM(inside, outside),
-    Strange behavior in browsers</td></tr>
-<tr class="css1 impl-yes"><td>list-style-type</td><td>ENUM(...),
-    Well-supported values are: disc, circle, square,
-    decimal, lower-roman, upper-roman, lower-alpha and upper-alpha. See also
-    CSS 3. Mostly IE lack of support.</td></tr>
-<tr class="css1 impl-yes"><td>list-style</td><td>SHORTHAND</td></tr>
-<tr class="css1 impl-yes"><td>margin</td><td>MULTIPLE</td></tr>
-<tr class="css1 impl-yes"><td>margin-*</td><td>COMPOSITE(&lt;length&gt;,
-    &lt;percentage&gt;, auto)</td></tr>
-<tr class="css1 impl-yes"><td>padding</td><td>MULTIPLE</td></tr>
-<tr class="css1 impl-yes"><td>padding-*</td><td>COMPOSITE(&lt;length&gt;(positive),
-    &lt;percentage&gt;(positive))</td></tr>
-<tr class="css1 impl-yes"><td>text-align</td><td>ENUM(left, right,
-    center, justify)</td></tr>
-<tr class="css1 impl-yes"><td>text-decoration</td><td>No blink (argh my eyes), not
-    enum, can be combined (composite sorta): underline, overline,
-    line-through</td></tr>
-<tr class="css1 impl-yes"><td>text-indent</td><td>COMPOSITE(&lt;length&gt;,
-    &lt;percentage&gt;)</td></tr>
-<tr class="css1 impl-yes"><td>text-transform</td><td>ENUM(capitalize, uppercase,
-    lowercase, none)</td></tr>
-<tr class="css1 impl-yes"><td>width</td><td>COMPOSITE(&lt;length&gt;,
-    &lt;percentage&gt;, auto), Interesting</td></tr>
-<tr class="css1 impl-yes"><td>word-spacing</td><td>COMPOSITE(&lt;length&gt;, auto),
-    IE 5 no support</td></tr>
-</tbody>
-
-<tbody>
-<tr><th colspan="2">Table</th></tr>
-<tr class="impl-yes"><td>border-collapse</td><td>ENUM(collapse, seperate)</td></tr>
-<tr class="impl-yes"><td>border-space</td><td>MULTIPLE</td></tr>
-<tr class="impl-yes"><td>caption-side</td><td>ENUM(top, bottom)</td></tr>
-<tr class="feature"><td>empty-cells</td><td>ENUM(show, hide), No IE support makes this useless,
-    possible fix with &amp;nbsp;? Unknown release milestone.</td></tr>
-<tr class="impl-yes"><td>table-layout</td><td>ENUM(auto, fixed)</td></tr>
-<tr class="impl-yes css1"><td>vertical-align</td><td>COMPOSITE(ENUM(baseline, sub,
-    super, top, text-top, middle, bottom, text-bottom), &lt;percentage&gt;,
-    &lt;length&gt;) Also applies to others with explicit height</td></tr>
-</tbody>
-
-<tbody>
-<tr><th colspan="2">Absolute positioning, unknown release milestone</th></tr>
-<tr class="danger impl-no"><td>bottom</td><td rowspan="4">Dangerous, must be non-negative to even be considered,
-    but it's still possible to arbitrarily position by running over.</td></tr>
-<tr class="danger impl-no"><td>left</td></tr>
-<tr class="danger impl-no"><td>right</td></tr>
-<tr class="danger impl-no"><td>top</td></tr>
-<tr class="impl-no"><td>clip</td><td>-</td></tr>
-<tr class="danger impl-no"><td>position</td><td>ENUM(static, relative, absolute, fixed)
-    relative not absolute?</td></tr>
-<tr class="danger impl-no"><td>z-index</td><td>Dangerous</td></tr>
-</tbody>
-
-<tbody>
-<tr><th colspan="2">Unknown</th></tr>
-<tr class="danger css1 impl-yes"><td>background-image</td><td>Dangerous</td></tr>
-<tr class="css1 impl-yes"><td>background-attachment</td><td>ENUM(scroll, fixed),
-    Depends on background-image</td></tr>
-<tr class="css1 impl-yes"><td>background-position</td><td>Depends on background-image</td></tr>
-<tr class="danger impl-no"><td>cursor</td><td>Dangerous but fluffy</td></tr>
-<tr class="danger css1"><td>display</td><td>ENUM(...), Dangerous but interesting;
-    will not implement list-item, run-in (Opera only) or table (no IE);
-    inline-block has incomplete IE6 support and requires -moz-inline-box
-    for Mozilla. Unknown target milestone.</td></tr>
-<tr class="css1 impl-yes"><td>height</td><td>Interesting, why use it? Unknown target milestone.</td></tr>
-<tr class="danger css1 impl-yes"><td>list-style-image</td><td>Dangerous?</td></tr>
-<tr class="impl-no"><td>max-height</td><td rowspan="4">No IE 5/6</td></tr>
-<tr class="impl-no"><td>min-height</td></tr>
-<tr class="impl-no"><td>max-width</td></tr>
-<tr class="impl-no"><td>min-width</td></tr>
-<tr class="impl-no"><td>orphans</td><td>No IE support</td></tr>
-<tr class="impl-no"><td>widows</td><td>No IE support</td></tr>
-<tr><td>overflow</td><td>ENUM, IE 5/6 almost (remove visible if set). Unknown target milestone.</td></tr>
-<tr><td>page-break-after</td><td>ENUM(auto, always, avoid, left, right),
-    IE 5.5/6 and Opera. Unknown target milestone.</td></tr>
-<tr><td>page-break-before</td><td>ENUM(auto, always, avoid, left, right),
-    Mostly supported. Unknown target milestone.</td></tr>
-<tr><td>page-break-inside</td><td>ENUM(avoid, auto), Opera only. Unknown target milestone.</td></tr>
-<tr class="impl-no"><td>quotes</td><td>May be dropped from CSS2, fairly useless for inline context</td></tr>
-<tr class="impl-no"><td>visibility</td><td>ENUM(visible, hidden, collapse),
-    Dangerous</td></tr>
-<tr class="css1 feature impl-partial"><td>white-space</td><td>ENUM(normal, pre, nowrap, pre-wrap,
-    pre-line), Spotty implementation:
-    pre (no IE 5/6), <em>nowrap</em> (no IE 5, supported),
-    pre-wrap (only Opera), pre-line (no support). Fixable? Unknown target milestone.</td></tr>
-</tbody>
-
-<tbody class="impl-no">
-<tr><th colspan="2">Aural</th></tr>
-<tr><td>azimuth</td><td>-</td></tr>
-<tr><td>cue</td><td>-</td></tr>
-<tr><td>cue-after</td><td>-</td></tr>
-<tr><td>cue-before</td><td>-</td></tr>
-<tr><td>elevation</td><td>-</td></tr>
-<tr><td>pause-after</td><td>-</td></tr>
-<tr><td>pause-before</td><td>-</td></tr>
-<tr><td>pause</td><td>-</td></tr>
-<tr><td>pitch-range</td><td>-</td></tr>
-<tr><td>pitch</td><td>-</td></tr>
-<tr><td>play-during</td><td>-</td></tr>
-<tr><td>richness</td><td>-</td></tr>
-<tr><td>speak-header</td><td>Table related</td></tr>
-<tr><td>speak-numeral</td><td>-</td></tr>
-<tr><td>speak-punctuation</td><td>-</td></tr>
-<tr><td>speak</td><td>-</td></tr>
-<tr><td>speech-rate</td><td>-</td></tr>
-<tr><td>stress</td><td>-</td></tr>
-<tr><td>voice-family</td><td>-</td></tr>
-<tr><td>volume</td><td>-</td></tr>
-</tbody>
-
-<tbody class="impl-no">
-<tr><th colspan="2">Will not implement</th></tr>
-<tr><td>content</td><td>Not applicable for inline styles</td></tr>
-<tr><td>counter-increment</td><td>Needs content, Opera only</td></tr>
-<tr><td>counter-reset</td><td>Needs content, Opera only</td></tr>
-<tr><td>direction</td><td>No support</td></tr>
-<tr><td>outline-color</td><td rowspan="4">IE Mac and Opera on outside,
-Mozilla on inside and needs -moz-outline, no IE support.</td></tr>
-    <tr><td>outline-style</td></tr>
-    <tr><td>outline-width</td></tr>
-    <tr><td>outline</td></tr>
-<tr><td>unicode-bidi</td><td>No support</td></tr>
-</tbody>
-
-</table>
-
-<h2>Interesting Attributes</h2>
-
-<table cellspacing="0">
-
-<thead>
-<tr><th>Attribute</th><th>Tags</th><th>Notes</th></tr>
-</thead>
-
-<!--
-<tr><th></th></tr>
-<tbody>
-<tr><td>-</td><td>-</td><td>-</td></tr>
-</tbody>
--->
-
-<tbody>
-<tr><th colspan="3">CSS</th></tr>
-<tr class="impl-yes"><td>style</td><td>All</td><td>Parser is reasonably functional. Status here doesn't count individual properties.</td></tr>
-</tbody>
-
-<tbody>
-<tr><th colspan="3">Questionable</th></tr>
-<tr class="impl-no"><td>accesskey</td><td>A</td><td>May interfere with main interface</td></tr>
-<tr class="impl-no"><td>tabindex</td><td>A</td><td>May interfere with main interface</td></tr>
-<tr class="impl-yes"><td>target</td><td>A</td><td>Config enabled, only useful for frame layouts, disallowed in strict</td></tr>
-</tbody>
-
-<tbody>
-<tr><th colspan="3">Miscellaneous</th></tr>
-<tr><td>datetime</td><td>DEL, INS</td><td>No visible effect, ISO format</td></tr>
-<tr class="impl-yes"><td>rel</td><td>A</td><td>Largely user-defined: nofollow, tag (see microformats)</td></tr>
-<tr class="impl-yes"><td>rev</td><td>A</td><td>Largely user-defined: vote-*</td></tr>
-<tr class="feature"><td>axis</td><td>TD, TH</td><td>W3C only: No browser implementation</td></tr>
-<tr class="feature"><td>char</td><td>COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR</td><td>W3C only: No browser implementation</td></tr>
-<tr class="feature"><td>headers</td><td>TD, TH</td><td>W3C only: No browser implementation</td></tr>
-<tr class="feature"><td>scope</td><td>TD, TH</td><td>W3C only: No browser implementation</td></tr>
-</tbody>
-
-<tbody class="impl-yes">
-<tr><th colspan="3">URI</th></tr>
-<tr><td rowspan="2">cite</td><td>BLOCKQUOTE, Q</td><td>For attribution</td></tr>
-    <tr><td>DEL, INS</td><td>Link to explanation why it changed</td></tr>
-<tr><td>href</td><td>A</td><td>-</td></tr>
-<tr><td>longdesc</td><td>IMG</td><td>-</td></tr>
-<tr class="required"><td>src</td><td>IMG</td><td>Required</td></tr>
-</tbody>
-
-<tbody>
-<tr><th colspan="3">Transform</th></tr>
-<tr class="impl-yes"><td rowspan="5">align</td><td>CAPTION</td><td>'caption-side' for top/bottom, 'text-align' for left/right</td></tr>
-    <tr class="impl-yes"><td>IMG</td><td rowspan="3">See specimens/html-align-to-css.html</td></tr>
-    <tr class="impl-yes"><td>TABLE</td></tr>
-    <tr class="impl-yes"><td>HR</td></tr>
-    <tr class="impl-yes"><td>H1, H2, H3, H4, H5, H6, P</td><td>Equivalent style 'text-align'</td></tr>
-<tr class="required impl-yes"><td>alt</td><td>IMG</td><td>Required, insert image filename if src is present or default invalid image text</td></tr>
-<tr class="impl-yes"><td rowspan="3">bgcolor</td><td>TABLE</td><td>Superset style 'background-color'</td></tr>
-    <tr class="impl-yes"><td>TR</td><td>Superset style 'background-color'</td></tr>
-    <tr class="impl-yes"><td>TD, TH</td><td>Superset style 'background-color'</td></tr>
-<tr class="impl-yes"><td>border</td><td>IMG</td><td>Equivalent style <code>border:[number]px solid</code></td></tr>
-<tr class="impl-yes"><td>clear</td><td>BR</td><td>Near-equiv style 'clear', transform 'all' into 'both'</td></tr>
-<tr class="impl-no"><td>compact</td><td>DL, OL, UL</td><td>Boolean, needs custom CSS class; rarely used anyway</td></tr>
-<tr class="required impl-yes"><td>dir</td><td>BDO</td><td>Required, insert ltr (or configuration value) if none</td></tr>
-<tr class="impl-yes"><td>height</td><td>TD, TH</td><td>Near-equiv style 'height', needs px suffix if original was in pixels</td></tr>
-<tr class="impl-yes"><td>hspace</td><td>IMG</td><td>Near-equiv styles 'margin-top' and 'margin-bottom', needs px suffix</td></tr>
-<tr class="impl-yes"><td>lang</td><td>*</td><td>Copy value to xml:lang</td></tr>
-<tr class="impl-yes"><td rowspan="2">name</td><td>IMG</td><td>Turn into ID</td></tr>
-    <tr class="impl-yes"><td>A</td><td>Turn into ID</td></tr>
-<tr class="impl-yes"><td>noshade</td><td>HR</td><td>Boolean, style 'border-style:solid;'</td></tr>
-<tr class="impl-yes"><td>nowrap</td><td>TD, TH</td><td>Boolean, style 'white-space:nowrap;' (not compat with IE5)</td></tr>
-<tr class="impl-yes"><td>size</td><td>HR</td><td>Near-equiv 'height', needs px suffix if original was pixels</td></tr>
-<tr class="required impl-yes"><td>src</td><td>IMG</td><td>Required, insert blank or default img if not set</td></tr>
-<tr class="impl-yes"><td>start</td><td>OL</td><td>Poorly supported 'counter-reset', allowed in loose, dropped in strict</td></tr>
-<tr class="impl-yes"><td rowspan="3">type</td><td>LI</td><td rowspan="3">Equivalent style 'list-style-type', different allowed values though. (needs testing)</td></tr>
-    <tr class="impl-yes"><td>OL</td></tr>
-    <tr class="impl-yes"><td>UL</td></tr>
-<tr class="impl-yes"><td>value</td><td>LI</td><td>Poorly supported 'counter-reset', allowed in loose, dropped in strict</td></tr>
-<tr class="impl-yes"><td>vspace</td><td>IMG</td><td>Near-equiv styles 'margin-left' and 'margin-right', needs px suffix, see hspace</td></tr>
-<tr class="impl-yes"><td rowspan="2">width</td><td>HR</td><td rowspan="2">Near-equiv style 'width', needs px suffix if original was pixels</td></tr>
-    <tr class="impl-yes"><td>TD, TH</td></tr>
-</tbody>
-
-</table>
-
-<div id="version">$Id: dev-progress.html 1401 2007-09-03 15:16:33Z Edward $</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/enduser-customize.html

@@ -1,798 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Tutorial for customizing HTML Purifier's tag and attribute sets." />
-<link rel="stylesheet" type="text/css" href="style.css" />
-
-<title>Customize - HTML Purifier</title>
-
-</head><body>
-
-<h1 class="subtitled">Customize!</h1>
-<div class="subtitle">HTML Purifier is a Swiss-Army Knife</div>
-
-<div id="filing">Filed under End-User</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>
-  You may have heard of the <a href="dev-advanced-api.html">Advanced API</a>.
-  If you're interested in reading dry prose and boring functional
-  specifications, feel free to click that link to get a no-nonsense overview
-  on the Advanced API. For the rest of us, there's this tutorial. By the time
-  you're finished reading this, you should have a pretty good idea on
-  how to implement custom tags and attributes that HTML Purifier may not have.
-</p>
-
-<h2>Is it necessary?</h2>
-
-<p>
-  Before we even write any code, it is paramount to consider whether or
-  not the code we're writing is necessary or not. HTML Purifier, by default,
-  contains a large set of elements and attributes: large enough so that
-  <em>any</em> element or attribute in XHTML 1.0 or 1.1 (and its HTML variants)
-  that can be safely used by the general public is implemented.
-</p>
-
-<p>
-  So what needs to be implemented? (Feel free to skip this section if
-  you know what you want).
-</p>
-
-<h3>XHTML 1.0</h3>
-
-<p>
-  All of the modules listed below are based off of the
-  <a href="http://www.w3.org/TR/2001/REC-xhtml-modularization-20010410/abstract_modules.html#sec_5.2.">modularization of
-  XHTML</a>, which, while technically for XHTML 1.1, is quite a useful
-  resource.
-</p>
-
-<ul>
-  <li>Structure</li>
-  <li>Frames</li>
-  <li>Applets (deprecated)</li>
-  <li>Forms</li>
-  <li>Image maps</li>
-  <li>Objects</li>
-  <li>Frames</li>
-  <li>Events</li>
-  <li>Meta-information</li>
-  <li>Style sheets</li>
-  <li>Link (not hypertext)</li>
-  <li>Base</li>
-  <li>Name</li>
-</ul>
-
-<p>
-  If you don't recognize it, you probably don't need it. But the curious
-  can look all of these modules up in the above-mentioned document.  Note
-  that inline scripting comes packaged with HTML Purifier (more on this
-  later).
-</p>
-
-<h3>XHTML 1.1</h3>
-
-<p>
-  As of HTMLPurifier 2.1.0, we have implemented the
-  <a href="http://www.w3.org/TR/2001/REC-ruby-20010531/">Ruby module</a>,
-  which defines a set of tags
-  for publishing short annotations for text, used mostly in Japanese
-  and Chinese school texts, but applicable for positioning any text (not
-  limited to translations) above or below other corresponding text.
-</p>
-
-<h3>XHTML 2.0</h3>
-
-<p>
-  <a href="http://www.w3.org/TR/xhtml2/">XHTML 2.0</a> is still a
-  working draft, so any elements introduced in the
-  specification have not been implemented and will not be implemented
-  until we get a recommendation or proposal.  Because XHTML 2.0 is
-  an entirely new markup language, implementing rules for it will be
-  no easy task.
-</p>
-
-<h3>HTML 5</h3>
-
-<p>
-  <a href="http://www.whatwg.org/specs/web-apps/current-work/">HTML 5</a>
-  is a fork of HTML 4.01 by WHATWG, who believed that XHTML 2.0 was headed
-  in the wrong direction.  It too is a working draft, and may change
-  drastically before publication, but it should be noted that the
-  <code>canvas</code> tag has been implemented by many browser vendors.
-</p>
-
-<h3>Proprietary</h3>
-
-<p>
-  There are a number of proprietary tags still in the wild. Many of them
-  have been documented in <a href="ref-proprietary-tags.txt">ref-proprietary-tags.txt</a>,
-  but there is currently no implementation for any of them.
-</p>
-
-<h3>Extensions</h3>
-
-<p>
-  There are also a number of other XML languages out there that can
-  be embedded in HTML documents: two of the most popular are MathML and
-  SVG, and I frequently get requests to implement these.  But they are
-  expansive, comprehensive specifications, and it would take far too long
-  to implement them <em>correctly</em> (most systems I've seen go as far
-  as whitelisting tags and no further; come on, what about nesting!)
-</p>
-
-<p>
-  Word of warning: HTML Purifier is currently <em>not</em> namespace
-  aware.
-</p>
-
-<h2>Giving back</h2>
-
-<p>
-  As you may imagine from the details above (don't be abashed if you didn't
-  read it all: a glance over would have done), there's quite a bit that
-  HTML Purifier doesn't implement.  Recent architectural changes have
-  allowed HTML Purifier to implement elements and attributes that are not
-  safe!  Don't worry, they won't be activated unless you set %HTML.Trusted
-  to true, but they certainly help out users who need to put, say, forms
-  on their page and don't want to go through the trouble of reading this
-  and implementing it themself.
-</p>
-
-<p>
-  So any of the above that you implement for your own application could
-  help out some other poor sap on the other side of the globe.  Help us
-  out, and send back code so that it can be hammered into a module and
-  released with the core.  Any code would be greatly appreciated!
-</p>
-
-<h2>And now...</h2>
-
-<p>
-  Enough philosophical talk, time for some code:
-</p>
-
-<pre>$config = HTMLPurifier_Config::createDefault();
-$config->set('HTML', 'DefinitionID', 'enduser-customize.html tutorial');
-$config->set('HTML', 'DefinitionRev', 1);
-$def =& $config->getHTMLDefinition(true);</pre>
-
-<p>
-  Assuming that HTML Purifier has already been properly loaded (hint:
-  include <code>HTMLPurifier.auto.php</code>), this code will set up
-  the environment that you need to start customizing the HTML definition.
-  What's going on?
-</p>
-
-<ul>
-  <li>
-    The first three lines are regular configuration code:
-    <ul>
-      <li>
-        %HTML.DefinitionID is set to a unique identifier for your
-        custom HTML definition.  This prevents it from clobbering
-        other custom definitions on the same installation.
-      </li>
-      <li>
-        %HTML.DefinitionRev is a revision integer of your HTML
-        definition.  Because HTML definitions are cached, you'll need
-        to increment this whenever you make a change in order to flush
-        the cache.
-      </li>
-    </ul>
-  </li>
-  <li>
-    The fourth line retrieves a raw <code>HTMLPurifier_HTMLDefinition</code>
-    object that we will be tweaking. If the parameter was removed, we
-    would be retrieving a fully formed definition object, which is somewhat
-    useless for customization purposes.
-  </li>
-</ul>
-
-<h3>Broken backwards-compatibility</h3>
-
-<p>
-  Those of you who have already been twiddling around with the raw
-  HTML definition object, you'll be noticing that you're getting an error
-  when you attempt to retrieve the raw definition object without specifying
-  a DefinitionID.  It is vital to caching (see below) that you make a unique
-  name for your customized definition, so make up something right now and
-  things will operate again.
-</p>
-
-<h2>Turn off caching</h2>
-
-<p>
-  To make development easier, we're going to temporarily turn off 
-  definition caching:
-</p>
-
-<pre>$config = HTMLPurifier_Config::createDefault();
-$config->set('HTML', 'DefinitionID', 'enduser-customize.html tutorial');
-$config->set('HTML', 'DefinitionRev', 1);
-<strong>$config->set('Core', 'DefinitionCache', null); // remove this later!</strong>
-$def =& $config->getHTMLDefinition(true);</pre>
-
-<p>
-  A few things should be mentioned about the caching mechanism before
-  we move on.  For performance reasons, HTML Purifier caches generated
-  <code>HTMLPurifier_Definition</code> objects in serialized files
-  stored (by default) in <code>library/HTMLPurifier/DefinitionCache/Serializer</code>.
-  A lot of processing is done in order to create these objects, so it
-  makes little sense to repeat the same processing over and over again
-  whenever HTML Purifier is called.
-</p>
-
-<p>
-  In order to identify a cache entry, HTML Purifier uses three variables:
-  the library's version number, the value of %HTML.DefinitionRev and
-  a serial of relevant configuration.  Whenever any of these changes,
-  a new HTML definition is generated.  Notice that there is no way
-  for the definition object to track changes to customizations: here, it
-  is up to you to supply appropriate information to DefinitionID and
-  DefinitionRev.
-</p>
-
-<h2 id="addAttribute">Add an attribute</h2>
-
-<p>
-  For this example, we're going to implement the <code>target</code> attribute found
-  on <code>a</code> elements.  To implement an attribute, we have to
-  ask a few questions:
-</p>
-
-<ol>
-  <li>What element is it found on?</li>
-  <li>What is its name?</li>
-  <li>Is it required or optional?</li>
-  <li>What are valid values for it?</li>
-</ol>
-
-<p>
-  The first three are easy: the element is <code>a</code>, the attribute
-  is <code>target</code>, and it is not a required attribute. (If it
-  was required, we'd need to append an asterisk to the attribute name,
-  you'll see an example of this in the addElement() example).
-</p>
-
-<p>
-  The last question is a little trickier.
-  Lets allow the special values: _blank, _self, _target and _top.
-  The form of this is called an <strong>enumeration</strong>, a list of
-  valid values, although only one can be used at a time.  To translate
-  this into code form, we write:
-</p>
-
-<pre>$config = HTMLPurifier_Config::createDefault();
-$config->set('HTML', 'DefinitionID', 'enduser-customize.html tutorial');
-$config->set('HTML', 'DefinitionRev', 1);
-$config->set('Core', 'DefinitionCache', null); // remove this later!
-$def =& $config->getHTMLDefinition(true);
-<strong>$def->addAttribute('a', 'target', 'Enum#_blank,_self,_target,_top');</strong></pre>
-
-<p>
-  The <code>Enum#_blank,_self,_target,_top</code> does all the magic.
-  The string is split into two parts, separated by a hash mark (#):
-</p>
-
-<ol>
-  <li>The first part is the name of what we call an <code>AttrDef</code></li>
-  <li>The second part is the parameter of the above-mentioned <code>AttrDef</code></li>
-</ol>
-
-<p>
-  If that sounds vague and generic, it's because it is!  HTML Purifier defines
-  an assortment of different attribute types one can use, and each of these
-  has their own specialized parameter format.  Here are some of the more useful
-  ones:
-</p>
-
-<table class="table">
-  <thead>
-    <tr>
-      <th>Type</th>
-      <th>Format</th>
-      <th>Description</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Enum</th>
-      <td><em>[s:]</em>value1,value2,...</td>
-      <td>
-        Attribute with a number of valid values, one of which may be used. When
-        s: is present, the enumeration is case sensitive.
-      </td>
-    </tr>
-    <tr>
-      <th>Bool</th>
-      <td>attribute_name</td>
-      <td>
-        Boolean attribute, with only one valid value: the name
-        of the attribute.
-      </td>
-    </tr>
-    <tr>
-      <th>CDATA</th>
-      <td></td>
-      <td>
-        Attribute of arbitrary text. Can also be referred to as <strong>Text</strong>
-        (the specification makes a semantic distinction between the two).
-      </td>
-    </tr>
-    <tr>
-      <th>ID</th>
-      <td></td>
-      <td>
-        Attribute that specifies a unique ID
-      </td>
-    </tr>
-    <tr>
-      <th>Pixels</th>
-      <td></td>
-      <td>
-        Attribute that specifies an integer pixel length
-      </td>
-    </tr>
-    <tr>
-      <th>Length</th>
-      <td></td>
-      <td>
-        Attribute that specifies a pixel or percentage length
-      </td>
-    </tr>
-    <tr>
-      <th>NMTOKENS</th>
-      <td></td>
-      <td>
-        Attribute that specifies a number of name tokens, example: the
-        <code>class</code> attribute
-      </td>
-    </tr>
-    <tr>
-      <th>URI</th>
-      <td></td>
-      <td>
-        Attribute that specifies a URI, example: the <code>href</code>
-        attribute
-      </td>
-    </tr>
-    <tr>
-      <th>Number</th>
-      <td></td>
-      <td>
-        Attribute that specifies an positive integer number
-      </td>
-    </tr>
-  </tbody>
-</table>
-
-<p>
-  For a complete list, consult
-  <a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/AttrTypes.php"><code>library/HTMLPurifier/AttrTypes.php</code></a>;
-  more information on attributes that accept parameters can be found on their
-  respective includes in
-  <a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/AttrDef/"><code>library/HTMLPurifier/AttrDef</code></a>.
-</p>
-
-<p>
-  Sometimes, the restrictive list in AttrTypes just doesn't cut it. Don't
-  sweat: you can also use a fully instantiated object as the value. The
-  equivalent, verbose form of the above example is:
-</p>
-
-<pre>$config = HTMLPurifier_Config::createDefault();
-$config->set('HTML', 'DefinitionID', 'enduser-customize.html tutorial');
-$config->set('HTML', 'DefinitionRev', 1);
-$config->set('Core', 'DefinitionCache', null); // remove this later!
-$def =& $config->getHTMLDefinition(true);
-<strong>$def->addAttribute('a', 'target', new HTMLPurifier_AttrDef_Enum(
-  array('_blank','_self','_target','_top')
-));</strong></pre>
-
-<p>
-  Trust me, you'll learn to love the shorthand.
-</p>
-
-<h2>Add an element</h2>
-
-<p>
-  Adding attributes is really small-fry stuff, though, and it was possible
-  to add them (albeit a bit more wordy) prior to 2.0. The real gem of 
-  the Advanced API is adding elements. There are five questions to 
-  ask when adding a new element:
-</p>
-
-<ol>
-  <li>What is the element's name?</li>
-  <li>What content set does this element belong to?</li>
-  <li>What are the allowed children of this element?</li>
-  <li>What attributes does the element allow that are general?</li>
-  <li>What attributes does the element allow that are specific to this element?</li>
-</ol>
-
-<p>
-  It's a mouthful, and you'll be slightly lost if your not familiar with
-  the HTML specification, so let's explain them step by step.
-</p>
-
-<h3>Content set</h3>
-
-<p>
-  The HTML specification defines two major content sets: Inline
-  and Block.  Each of these
-  content sets contain a list of elements: Inline contains things like
-  <code>span</code> and <code>b</code> while Block contains things like
-  <code>div</code> and <code>blockquote</code>.
-</p>
-
-<p>
-  These content sets amount to a macro mechanism for HTML definition. Most
-  elements in HTML are organized into one of these two sets, and most
-  elements in HTML allow elements from one of these sets.  If we had
-  to write each element verbatim into each other element's allowed
-  children, we would have ridiculously large lists; instead we use
-  content sets to compactify the declaration.
-</p>
-
-<p>
-  Practically speaking, there are several useful values you can use here:
-</p>
-
-<table class="table">
-  <thead>
-    <tr>
-      <th>Content set</th>
-      <th>Description</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Inline</th>
-      <td>Character level elements, text</td>
-    </tr>
-    <tr>
-      <th>Block</th>
-      <td>Block-like elements, like paragraphs and lists</td>
-    </tr>
-    <tr>
-      <th><em>false</em></th>
-      <td>
-        Any element that doesn't fit into the mold, for example <code>li</code>
-        or <code>tr</code>
-      </td>
-    </tr>
-  </tbody>
-</table>
-
-<p>
-  By specifying a valid value here, all other elements that use that
-  content set will also allow your element, without you having to do
-  anything. If you specify <em>false</em>, you'll have to register
-  your element manually.
-</p>
-
-<h3>Allowed children</h3>
-
-<p>
-  Allowed children defines the elements that this element can contain.
-  The allowed values may range from none to a complex regexp depending on
-  your element.
-</p>
-
-<p>
-  If you've ever taken a look at the HTML DTD's before, you may have
-  noticed declarations like this:
-</p>
-
-<pre>&lt;!ELEMENT LI - O (%flow;)*             -- list item --&gt;</pre>
-
-<p>
-  The <code>(%flow;)*</code> indicates the allowed children of the
-  <code>li</code> tag: <code>li</code> allows any number of flow
-  elements as its children. (The <code>- O</code> allows the closing tag to be 
-  omitted, though in XML this is not allowed.) In HTML Purifier, 
-  we'd write it like <code>Flow</code> (here's where the content sets 
-  we were discussing earlier come into play). There are three shorthand
-  content models you can specify:
-</p>
-
-<table class="table">
-  <thead>
-    <tr>
-      <th>Content model</th>
-      <th>Description</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Empty</th>
-      <td>No children allowed, like <code>br</code> or <code>hr</code></td>
-    </tr>
-    <tr>
-      <th>Inline</th>
-      <td>Any number of inline elements and text, like <code>span</code></td>
-    </tr>
-    <tr>
-      <th>Flow</th>
-      <td>Any number of inline elements, block elements and text, like <code>div</code></td>
-    </tr>
-  </tbody>
-</table>
-
-<p>
-  This covers 90% of all the cases out there, but what about elements that
-  break the mold like <code>ul</code>? This guy requires at least one
-  child, and the only valid children for it are <code>li</code>. The
-  content model is: <code>Required: li</code>. There are two parts: the
-  first type determines what <code>ChildDef</code> will be used to validate
-  content models. The most common values are:
-</p>
-
-<table class="table">
-  <thead>
-    <tr>
-      <th>Type</th>
-      <th>Description</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Required</th>
-      <td>Children must be one or more of the valid elements</td>
-    </tr>
-    <tr>
-      <th>Optional</th>
-      <td>Children can be any number of the valid elements</td>
-    </tr>
-    <tr>
-      <th>Custom</th>
-      <td>Children must follow the DTD-style regex</td>
-    </tr>
-  </tbody>
-</table>
-
-<p>
-  You can also implement your own <code>ChildDef</code>: this was done
-  for a few special cases in HTML Purifier such as <code>Chameleon</code>
-  (for <code>ins</code> and <code>del</code>), <code>StrictBlockquote</code>
-  and <code>Table</code>.
-</p>
-
-<p>
-  The second part specifies either valid elements or a regular expression.
-  Valid elements are separated with horizontal bars (|), i.e.
-  "<code>a | b | c</code>".  Use #PCDATA to represent plain text.
-  Regular expressions are based off of DTD's style:
-</p>
-
-<ul>
-  <li>Parentheses () are used for grouping</li>
-  <li>Commas (,) separate elements that should come one after another</li>
-  <li>Horizontal bars (|) indicate one or the other elements should be used</li>
-  <li>Plus signs (+) are used for a one or more match</li>
-  <li>Asterisks (*) are used for a zero or more match</li>
-  <li>Question marks (?) are used for a zero or one match</li>
-</ul>
-
-<p>
-  For example, "<code>a, b?, (c | d), e+, f*</code>" means "In this order,
-  one <code>a</code> element, at most one <code>b</code> element,
-  one <code>c</code> or <code>d</code> element (but not both), one or more
-  <code>e</code> elements, and any number of <code>f</code> elements."
-  Regex veterans should be able to jump right in, and those not so savvy
-  can always copy-paste W3C's content model definitions into HTML Purifier
-  and hope for the best.
-</p>
-
-<p>
-  A word of warning: while the regex format is extremely flexible on
-  the developer's side, it is
-  quite unforgiving on the user's side.  If the user input does not <em>exactly</em>
-  match the specification, the entire contents of the element will
-  be nuked.  This is why there is are specific content model types like
-  Optional and Required: while they could be implemented as <code>Custom:
-  (valid | elements)*</code>, the custom classes contain special recovery
-  measures that make sure as much of the user's original content gets 
-  through. HTML Purifier's core, as a rule, does not use Custom.
-</p>
-
-<p>
-  One final note: you can also use Content Sets inside your valid elements
-  lists or regular expressions. In fact, the three shorthand content models
-  mentioned above are just that: abbreviations:
-</p>
-
-<table class="table">
-  <thead>
-    <tr>
-      <th>Content model</th>
-      <th>Implementation</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>Inline</th>
-      <td>Optional: Inline | #PCDATA</td>
-    </tr>
-    <tr>
-      <th>Flow</th>
-      <td>Optional: Flow | #PCDATA</td>
-    </tr>
-  </tbody>
-</table>
-
-<p>
-  When the definition is compiled, Inline will be replaced with a
-  horizontal-bar separated list of inline elements. Also, notice that
-  it does not contain text: you have to specify that yourself.
-</p>
-
-<h3>Common attributes</h3>
-
-<p>
-  Congratulations: you have just gotten over the proverbial hump (Allowed
-  children). Common attributes is much simpler, and boils down to
-  one question: does your element have the <code>id</code>, <code>style</code>,
-  <code>class</code>, <code>title</code> and <code>lang</code> attributes?
-  If so, you'll want to specify the <code>Common</code> attribute collection,
-  which contains these five attributes that are found on almost every
-  HTML element in the specification.
-</p>
-
-<p>
-  There are a few more collections, but they're really edge cases:
-</p>
-
-<table class="table">
-  <thead>
-    <tr>
-      <th>Collection</th>
-      <th>Attributes</th>
-    </tr>
-  </thead>
-  <tbody>
-    <tr>
-      <th>I18N</th>
-      <td><code>lang</code>, possibly <code>xml:lang</code></td>
-    </tr>
-    <tr>
-      <th>Core</th>
-      <td><code>style</code>, <code>class</code>, <code>id</code> and <code>title</code></td>
-    </tr>
-  </tbody>
-</table>
-
-<p>
-  Common is a combination of the above-mentioned collections.
-</p>
-
-<p class="aside">
-  Readers familiar with the modularization may have noticed that the Core
-  attribute collection differs from that specified by the <a
-  href="http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_commonatts">abstract
-  modules of the XHTML Modularization 1.1</a>. We believe this section
-  to be in error, as <code>br</code> permits the use of the <code>style</code>
-  attribute even though it uses the <code>Core</code> collection, and 
-  the DTD and XML Schemas supplied by W3C support our interpretation.
-</p>
-
-<h3>Attributes</h3>
-
-<p>
-  If you didn't read the <a href="#addAttribute">earlier section on
-  adding attributes</a>, read it now.  The last parameter is simply
-  an array of attribute names to attribute implementations, in the exact
-  same format as <code>addAttribute()</code>.
-</p>
-
-<h3>Putting it all together</h3>
-
-<p>
-  We're going to implement <code>form</code>. Before we embark, lets
-  grab a reference implementation from over at the
-  <a href="http://www.w3.org/TR/html4/sgml/loosedtd.html">transitional DTD</a>:
-</p>
-
-<pre>&lt;!ELEMENT FORM - - (%flow;)* -(FORM)   -- interactive form --&gt;
-&lt;!ATTLIST FORM
-  %attrs;                              -- %coreattrs, %i18n, %events --
-  action      %URI;          #REQUIRED -- server-side form handler --
-  method      (GET|POST)     GET       -- HTTP method used to submit the form--
-  enctype     %ContentType;  &quot;application/x-www-form-urlencoded&quot;
-  accept      %ContentTypes; #IMPLIED  -- list of MIME types for file upload --
-  name        CDATA          #IMPLIED  -- name of form for scripting --
-  onsubmit    %Script;       #IMPLIED  -- the form was submitted --
-  onreset     %Script;       #IMPLIED  -- the form was reset --
-  target      %FrameTarget;  #IMPLIED  -- render in this frame --
-  accept-charset %Charsets;  #IMPLIED  -- list of supported charsets --
-  &gt;</pre>
-
-<p>
-  Juicy! With just this, we can answer four of our five questions:
-</p>
-
-<ol>
-  <li>What is the element's name? <strong>form</strong></li>
-  <li>What content set does this element belong to? <strong>Block</strong>
-    (this needs a little sleuthing, I find the easiest way is to search
-    the DTD for <code>FORM</code> and determine which set it is in.)</li>
-  <li>What are the allowed children of this element? <strong>One
-    or more flow elements, but no nested <code>form</code>s</strong></li>
-  <li>What attributes does the element allow that are general? <strong>Common</strong></li>
-  <li>What attributes does the element allow that are specific to this element? <strong>A whole bunch, see ATTLIST;
-    we're going to the vital ones: <code>action</code>, <code>method</code> and <code>name</code></strong></li>
-</ol>
-
-<p>
-  Time for some code:
-</p>
-
-<pre>$config = HTMLPurifier_Config::createDefault();
-$config->set('HTML', 'DefinitionID', 'enduser-customize.html tutorial');
-$config->set('HTML', 'DefinitionRev', 1);
-$config->set('Core', 'DefinitionCache', null); // remove this later!
-$def =& $config->getHTMLDefinition(true);
-$def->addAttribute('a', 'target', new HTMLPurifier_AttrDef_Enum(
-  array('_blank','_self','_target','_top')
-));
-<strong>$form =& $def->addElement(
-  'form',   // name
-  'Block',  // content set
-  'Flow', // allowed children
-  'Common', // attribute collection
-  array( // attributes
-    'action*' => 'URI',
-    'method' => 'Enum#get|post',
-    'name' => 'ID'
-  )
-);
-$form->excludes = array('form' => true);</strong></pre>
-
-<p>
-  Each of the parameters corresponds to one of the questions we asked.
-  Notice that we added an asterisk to the end of the <code>action</code>
-  attribute to indicate that it is required. If someone specifies a
-  <code>form</code> without that attribute, the tag will be axed.
-  Also, the extra line at the end is a special extra declaration that
-  prevents forms from being nested within each other.
-</p>
-
-<p>
-  And that's all there is to it! Implementing the rest of the form
-  module is left as an exercise to the user; to see more examples
-  check the <a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/HTMLModule/"><code>library/HTMLPurifier/HTMLModule/</code></a> directory
-  in your local HTML Purifier installation.
-</p>
-
-<h2>And beyond...</h2>
-
-<p>
-  Perceptive users may have realized that, to a certain extent, we
-  have simply re-implemented the facilities of XML Schema or the
-  Document Type Definition.  What you are seeing here, however, is
-  not just an XML Schema or Document Type Definition: it is a fully
-  expressive method of specifying the definition of HTML that is
-  a portable superset of the capabilities of the two above-mentioned schema
-  languages.  What makes HTMLDefinition so powerful is the fact that
-  if we don't have an implementation for a content model or an attribute
-  definition, you can supply it yourself by writing a PHP class.
-</p>
-
-<p>
-  There are many facets of HTMLDefinition beyond the Advanced API I have
-  walked you through today.  To find out more about these, you can
-  check out these source files:
-</p>
-
-<ul>
-  <li><a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/HTMLModule.php"><code>library/HTMLPurifier/HTMLModule.php</code></a></li>
-  <li><a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/ElementDef.php"><code>library/HTMLPurifier/ElementDef.php</code></a></li>
-</ul>
-
-<div id="version">$Id: enduser-tidy.html 1158 2007-06-18 19:26:29Z Edward $</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/enduser-id.html

@@ -1,147 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Explains various methods for allowing IDs in documents safely in HTML Purifier." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>IDs - HTML Purifier</title>
-
-</head><body>
-
-<h1 class="subtitled">IDs</h1>
-<div class="subtitle">What they are, why you should(n't) wear them, and how to deal with it</div>
-
-<div id="filing">Filed under End-User</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>Prior to HTML Purifier 1.2.0, this library blithely accepted user input that
-looked like this:</p>
-
-<pre>&lt;a id=&quot;fragment&quot;&gt;Anchor&lt;/a&gt;</pre>
-
-<p>...presenting an attractive vector for those that would destroy standards
-compliance: simply set the ID to one that is already used elsewhere in the
-document and voila: validation breaks.  There was a half-hearted attempt to
-prevent this by allowing users to blacklist IDs, but I suspect that no one
-really bothered, and thus, with the release of 1.2.0, IDs are now <em>removed</em>
-by default.</p>
-
-<p>IDs, however, are quite useful functionality to have, so if users start
-complaining about broken anchors you'll probably want to turn them back on
-with %HTML.EnableAttrID. But before you go mucking around with the config
-object, it's probably worth to take some precautions to keep your page
-validating. Why?</p>
-
-<ol>
-   <li>Standards-compliant pages are good</li>
-   <li>Duplicated IDs interfere with anchors.  If there are two id="foobar"s in a
-   document, which spot does a browser presented with the fragment #foobar go
-   to? Most browsers opt for the first appearing ID, making it impossible
-   to references the second section. Similarly, duplicated IDs can hijack
-   client-side scripting that relies on the IDs of elements.</li>
-</ol>
-
-<p>You have (currently) four ways of dealing with the problem.</p>
-
-
-
-<h2 class="subtitled">Blacklisting IDs</h2>
-<div class="subsubtitle">Good for pages with single content source and stable templates</div>
-
-<p>Keeping in terms with the
-<acronym title="Keep It Simple, Stupid">KISS</acronym> principle, let us
-deal with the most obvious solution: preventing users from using any IDs that
-appear elsewhere on the document.  The method is simple:</p>
-
-<pre>$config->set('HTML', 'EnableAttrID', true);
-$config->set('Attr', 'IDBlacklist' array(
-    'list', 'of', 'attribute', 'values', 'that', 'are', 'forbidden'
-));</pre>
-
-<p>That being said, there are some notable drawbacks.  First of all, you have to
-know precisely which IDs are being used by the HTML surrounding the user code.
-This is easier said than done: quite often the page designer and the system
-coder work separately, so the designer has to constantly be talking with the
-coder whenever he decides to add a new anchor.  Miss one and you open yourself
-to possible standards-compliance issues.</p>
-
-<p>Furthermore, this position becomes untenable when a single web page must hold
-multiple portions of user-submitted content.  Since there's obviously no way
-to find out before-hand what IDs users will use, the blacklist is helpless.
-And since HTML Purifier validates each segment separately, perhaps doing
-so at different times, it would be extremely difficult to dynamically update
-the blacklist in between runs.</p>
-
-<p>Finally, simply destroying the ID is extremely un-userfriendly behavior: after
-all, they might have simply specified a duplicate ID by accident.</p>
-
-<p>Thus, we get to our second method.</p>
-
-
-
-<h2 class="subtitled">Namespacing IDs</h2>
-<div class="subsubtitle">Lazy developer's way, but needs user education</div>
-
-<p>This method, too, is quite simple: add a prefix to all user IDs. With this
-code:</p>
-
-<pre>$config->set('HTML', 'EnableAttrID', true);
-$config->set('Attr', 'IDPrefix', 'user_');</pre>
-
-<p>...this:</p>
-
-<pre>&lt;a id=&quot;foobar&quot;&gt;Anchor!&lt;/a&gt;</pre>
-
-<p>...turns into:</p>
-
-<pre>&lt;a id=&quot;user_foobar&quot;&gt;Anchor!&lt;/a&gt;</pre>
-
-<p>As long as you don't have any IDs that start with user_, collisions are
-guaranteed not to happen.  The drawback is obvious: if a user submits
-id=&quot;foobar&quot;, they probably expect to be able to reference their page with
-#foobar. You'll have to tell them, &quot;No, that doesn't work, you have to add
-user_ to the beginning.&quot;</p>
-
-<p>And yes, things get hairier.  Even with a nice prefix, we still have done
-nothing about multiple HTML Purifier outputs on one page.  Thus, we have
-a second configuration value to piggy-back off of: %Attr.IDPrefixLocal:</p>
-
-<pre>$config->set('Attr', 'IDPrefixLocal', 'comment' . $id . '_');</pre>
-
-<p>This new attributes does nothing but append on to regular IDPrefix, but is
-special in that it is volatile: it's value is determined at run-time and
-cannot possibly be cordoned into, say, a .ini config file.  As for what to
-put into the directive, is up to you, but I would recommend the ID number
-the text has been assigned in the database.  Whatever you pick, however, it
-has to be unique and stable for the text you are validating.  Note, however,
-that we require that %Attr.IDPrefix be set before you use this directive.</p>
-
-<p>And also remember: the user has to know what this prefix is too!</p>
-
-
-
-<h2>Abstinence</h2>
-
-<p>You may not want to bother. That's okay too, just don't enable IDs.</p>
-
-<p>Personally, I would take this road whenever user-submitted content would be
-possibly be shown together on one page.  Why a blog comment would need to use
-anchors is beyond me.</p>
-
-
-
-<h2>Denial</h2>
-
-<p>To revert back to pre-1.2.0 behavior, simply:</p>
-
-<pre>$config->set('HTML', 'EnableAttrID', true);</pre>
-
-<p>Don't come crying to me when your page mysteriously stops validating, though.</p>
-
-<div id="version">$Id: enduser-id.html 1397 2007-08-26 18:20:46Z Edward $</div>
-
-</body>
-</html>

lib/htmlpurifier-3.0.0/docs/enduser-overview.txt

@@ -1,57 +0,0 @@
-
-HTML Purifier
-  by Edward Z. Yang
-
-There are a number of ad hoc HTML filtering solutions out there on the web
-(some examples including HTML_Safe, kses and SafeHtmlChecker.class.php) that
-claim to filter HTML properly, preventing malicious JavaScript and layout
-breaking HTML from getting through the parser.  None of them, however,
-demonstrates a thorough knowledge of neither the DTD that defines the HTML
-nor the caveats of HTML that cannot be expressed by a DTD.  Configurable
-filters (such as kses or PHP's built-in striptags() function) have trouble
-validating the contents of attributes and can be subject to security attacks
-due to poor configuration.  Other filters take the naive approach of
-blacklisting known threats and tags, failing to account for the introduction
-of new technologies, new tags, new attributes or quirky browser behavior.
-
-However, HTML Purifier takes a different approach, one that doesn't use
-specification-ignorant regexes or narrow blacklists.  HTML Purifier will
-decompose the whole document into tokens, and rigorously process the tokens by:
-removing non-whitelisted elements, transforming bad practice tags like <font>
-into <span>, properly checking the nesting of tags and their children and
-validating all attributes according to their RFCs.
-
-To my knowledge, there is nothing like this on the web yet.  Not even MediaWiki,
-which allows an amazingly diverse mix of HTML and wikitext in its documents,
-gets all the nesting quirks right.  Existing solutions hope that no JavaScript
-will slip through, but either do not attempt to ensure that the resulting
-output is valid XHTML or send the HTML through a draconic XML parser (and yet
-still get the nesting wrong: SafeHtmlChecker.class.php does not prevent <a>
-tags from being nested within each other).
-
-This document no longer is a detailed description of how HTMLPurifier works,
-as those descriptions have been moved to the appropriate code.  The first
-draft was drawn up after two rough code sketches and the implementation of a
-forgiving lexer.  You may also be interested in the unit tests located in the
-tests/ folder, which provide a living document on how exactly the filter deals
-with malformed input.
-
-In summary (see corresponding classes for more details):
-
-1. Parse document into an array of tag and text tokens (Lexer)
-2. Remove all elements not on whitelist and transform certain other elements
-   into acceptable forms (i.e. <font>)
-3. Make document well formed while helpfully taking into account certain quirks,
-   such as the fact that <p> tags traditionally are closed by other block-level
-   elements.
-4. Run through all nodes and check children for proper order (especially
-   important for tables).
-5. Validate attributes according to more restrictive definitions based on the
-   RFCs.
-6. Translate back into a string. (Generator)
-
-HTML Purifier is best suited for documents that require a rich array of
-HTML tags.  Things like blog comments are, in all likelihood, most appropriately
-written in an extremely restrictive set of markup that doesn't require
-all this functionality (or not written in HTML at all), although this may
-be changing in the future with the addition of levels of filtering.

lib/htmlpurifier-3.0.0/docs/enduser-security.txt

@@ -1,16 +0,0 @@
-
-Security
-
-Like anything that claims to afford security, HTML_Purifier can be circumvented
-through negligence of people. This class will do its job: no more, no less,
-and it's up to you to provide it the proper information and proper context
-to be effective. Things to remember:
-
-1. Character Encoding: see enduser-utf8.html for more info.
-
-2. IDs: see enduser-id.html for more info
-
-3. URIs: see enduser-uri-filter.html
-
-4. CSS: document pending
-Explain which CSS styles we blocked and why.

lib/htmlpurifier-3.0.0/docs/enduser-slow.html

@@ -1,117 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Explains how to speed up HTML Purifier through caching or inbound filtering." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Speeding up HTML Purifier - HTML Purifier</title>
-
-</head><body>
-
-<h1 class="subtitled">Speeding up HTML Purifier</h1>
-<div class="subtitle">...also known as the HELP ME LIBRARY IS TOO SLOW MY PAGE TAKE TOO LONG page</div>
-
-<div id="filing">Filed under End-User</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>HTML Purifier is a very powerful library. But with power comes great 
-responsibility, in the form of longer execution times.  Remember, this 
-library isn't lightly grazing over submitted HTML: it's deconstructing 
-the whole thing, rigorously checking the parts, and then putting it back 
-together. </p>
-
-<p>So, if it so turns out that HTML Purifier is kinda too slow for outbound 
-filtering, you've got a few options: </p>
-
-<h2>Inbound filtering</h2>
-
-<p>Perform filtering of HTML when it's submitted by the user. Since the 
-user is already submitting something, an extra half a second tacked on 
-to the load time probably isn't going to be that huge of a problem.  
-Then, displaying the content is a simple a manner of outputting it 
-directly from your database/filesystem. The trouble with this method is 
-that your user loses the original text, and when doing edits, will be 
-handling the filtered text.  While this may be a good thing, especially 
-if you're using a WYSIWYG editor, it can also result in data-loss if a 
-user makes a typo. </p>
-
-<p>Example (non-functional):</p>
-
-<pre>&lt;?php
-    /**
-     * FORM SUBMISSION PAGE
-     * display_error($message) : displays nice error page with message
-     * display_success() : displays a nice success page
-     * display_form() : displays the HTML submission form
-     * database_insert($html) : inserts data into database as new row
-     */
-    if (!empty($_POST)) {
-        require_once '/path/to/library/HTMLPurifier.auto.php';
-        require_once 'HTMLPurifier.func.php';
-        $dirty_html = isset($_POST['html']) ? $_POST['html'] : false;
-        if (!$dirty_html) {
-            display_error('You must write some HTML!');
-        }
-        $html = HTMLPurifier($dirty_html);
-        database_insert($html);
-        display_success();
-        // notice that $dirty_html is *not* saved
-    } else {
-        display_form();
-    }
-?&gt;</pre>
-
-<h2>Caching the filtered output</h2>
-
-<p>Accept the submitted text and put it unaltered into the database, but 
-then also generate a filtered version and stash that in the database.  
-Serve the filtered version to readers, and the unaltered version to 
-editors.  If need be, you can invalidate the cache and have the cached 
-filtered version be regenerated on the first page view.  Pros? Full data 
-retention. Cons? It's more complicated, and opens other editors up to 
-XSS if they are using a WYSIWYG editor (to fix that, they'd have to be 
-able to get their hands on the *really* original text served in 
-plaintext mode). </p>
-
-<p>Example (non-functional):</p>
-
-<pre>&lt;?php
-    /**
-     * VIEW PAGE
-     * display_error($message) : displays nice error page with message
-     * cache_get($id) : retrieves HTML from fast cache (db or file)
-     * cache_insert($id, $html) : inserts good HTML into cache system
-     * database_get($id) : retrieves raw HTML from database
-     */
-    $id = isset($_GET['id']) ? (int) $_GET['id'] : false;
-    if (!$id) {
-        display_error('Must specify ID.');
-        exit;
-    }
-    $html = cache_get($id); // filesystem or database
-    if ($html === false) {
-        // cache didn't have the HTML, generate it
-        $raw_html = database_get($id);
-        require_once '/path/to/library/HTMLPurifier.auto.php';
-        require_once 'HTMLPurifier.func.php';
-        $html = HTMLPurifier($raw_html);
-        cache_insert($id, $html);
-    }
-    echo $html;
-?&gt;</pre>
-
-<h2>Summary</h2>
-
-<p>In short, inbound filtering is the simple option and caching is the
-robust option (albeit with bigger storage requirements). </p>
-
-<p>There is a third option, independent of the two we've discussed: profile 
-and optimize HTMLPurifier yourself. Be sure to report back your results 
-if you decide to do that! Especially if you port HTML Purifier to C++. 
-<tt>;-)</tt></p>
-
-</body>
-</html>

lib/htmlpurifier-3.0.0/docs/enduser-tidy.html

@@ -1,230 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Tutorial for tweaking HTML Purifier's Tidy-like behavior." />
-<link rel="stylesheet" type="text/css" href="style.css" />
-
-<title>Tidy - HTML Purifier</title>
-
-</head><body>
-
-<h1>Tidy</h1>
-
-<div id="filing">Filed under Development</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>You've probably heard of HTML Tidy, Dave Raggett's little piece
-of software that cleans up poorly written HTML.  Let me say it straight
-out:</p>
-
-<p class="emphasis">This ain't HTML Tidy!</p>
-
-<p>Rather, Tidy stands for a cool set of Tidy-inspired features in HTML Purifier
-that allows users to submit deprecated elements and attributes and get
-valid strict markup back. For example:</p>
-
-<pre>&lt;center&gt;Centered&lt;/center&gt;</pre>
-
-<p>...becomes:</p>
-
-<pre>&lt;div style=&quot;text-align:center;&quot;&gt;Centered&lt;/div&gt;</pre>
-
-<p>...when this particular fix is run on the HTML. This tutorial will give
-you the lowdown of what exactly HTML Purifier will do when Tidy
-is on, and how to fine-tune this behavior. Once again, <strong>you do
-not need Tidy installed on your PHP to use these features!</strong></p>
-
-<h2>What does it do?</h2>
-
-<p>Tidy will do several things to your HTML:</p>
-
-<ul>
-    <li>Convert deprecated elements and attributes to standards-compliant
-        alternatives</li>
-    <li>Enforce XHTML compatibility guidelines and other best practices</li>
-    <li>Preserve data that would normally be removed as per W3C</li>
-</ul>
-
-<h2>What are levels?</h2>
-
-<p>Levels describe how aggressive the Tidy module should be when 
-cleaning up HTML. There are four levels to pick: none, light, medium
-and heavy. Each of these levels has a well-defined set of behavior
-associated with it, although it may change depending on your doctype.</p>
-
-<dl>
-    <dt>light</dt>
-    <dd>This is the <strong>lenient</strong> level. If a tag or attribute
-        is about to be removed because it isn't supported by the
-        doctype, Tidy will step in and change into an alternative that
-        is supported.</dd>
-    <dt>medium</dt>
-    <dd>This is the <strong>correctional</strong> level. At this level,
-        all the functions of light are performed, as well as some extra,
-        non-essential best practices enforcement. Changes made on this
-        level are very benign and are unlikely to cause problems.</dd>
-    <dt>heavy</dt>
-    <dd>This is the <strong>aggressive</strong> level. If a tag or
-        attribute is deprecated, it will be converted into a non-deprecated
-        version, no ifs ands or buts.</dd>
-</dl>
-
-<p>By default, Tidy operates on the <strong>medium</strong> level. You can
-change the level of cleaning by setting the %HTML.TidyLevel configuration
-directive:</p>
-
-<pre>$config->set('HTML', 'TidyLevel', 'heavy'); // burn baby burn!</pre>
-
-<h2>Is the light level really light?</h2>
-
-<p>It depends on what doctype you're using. If your documents are HTML
-4.01 <em>Transitional</em>, HTML Purifier will be lazy
-and won't clean up your <code>center</code>
-or <code>font</code> tags. But if you're using HTML 4.01 <em>Strict</em>,
-HTML Purifier has no choice: it has to convert them, or they will
-be nuked out of existence. So while light on Transitional will result
-in little to no changes, light on Strict will still result in quite
-a lot of fixes.</p>
-
-<p>This is different behavior from 1.6 or before, where deprecated
-tags in transitional documents would
-always be cleaned up regardless. This is also better behavior.</p>
-
-<h2>My pages look different!</h2>
-
-<p>HTML Purifier is tasked with converting deprecated tags and
-attributes to standards-compliant alternatives, which usually
-need copious amounts of CSS. It's also not foolproof: sometimes
-things do get lost in the translation. This is why when HTML Purifier
-can get away with not doing cleaning, it won't; this is why
-the default value is <strong>medium</strong> and not heavy.</p>
-
-<p>Fortunately, only a few attributes have problems with the switch
-over. They are described below:</p>
-
-<table class="table">
-    <thead><tr>
-        <th>Element@Attr</th>
-        <th>Changes</th>
-    </tr></thead>
-    <tbody>
-        <tr>
-            <td>caption@align</td>
-            <td>Firefox supports stuffing the caption on the
-                left and right side of the table, a feature that
-                Internet Explorer, understandably, does not have.
-                When align equals right or left, the text will simply
-                be aligned on the left or right side.</td>
-        </tr>
-        <tr>
-            <td>img@align</td>
-            <td>The implementation for align bottom is good, but not
-            perfect. There are a few pixel differences.</td>
-        </tr>
-        <tr>
-            <td>br@clear</td>
-            <td>Clear both gets a little wonky in Internet Explorer. Haven't
-                really been able to figure out why.</td>
-        </tr>
-        <tr>
-            <td>hr@noshade</td>
-            <td>All browsers implement this slightly differently: we've
-                chosen to make noshade horizontal rules gray.</td>
-        </tr>
-    </tbody>
-</table>
-
-<p>There are a few more minor, although irritating, bugs.
-Some older browsers support deprecated attributes,
-but not CSS. Transformed elements and attributes will look unstyled
-to said browsers. Also, CSS precedence is slightly different for
-inline styles versus presentational markup. In increasing precedence:</p>
-
-<ol>
-    <li>Presentational attributes</li>
-    <li>External style sheets</li>
-    <li>Inline styling</li>
-</ol>
-
-<p>This means that styling that may have been masked by external CSS
-declarations will start showing up (a good thing, perhaps). Finally,
-if you've turned off the style attribute, almost all of
-these transformations will not work. Sorry mates.</p>
-
-<p>You can review the rendering before and after of these transformations
-by consulting the <a
-href="http://htmlpurifier.org/live/smoketests/attrTransform.php">attrTransform.php
-smoketest</a>.</p>
-
-<h2>I like the general idea, but the specifics bug me!</h2>
-
-<p>So you want HTML Purifier to clean up your HTML, but you're not
-so happy about the br@clear implementation. That's perfectly fine!
-HTML Purifier will make accomodations:</p>
-
-<pre>$config->set('HTML', 'Doctype', 'XHTML 1.0 Transitional');
-$config->set('HTML', 'TidyLevel', 'heavy'); // all changes, minus...
-<strong>$config->set('HTML', 'TidyRemove', 'br@clear');</strong></pre>
-
-<p>That third line does the magic, removing the br@clear fix
-from the module, ensuring that <code>&lt;br clear="both" /&gt;</code>
-will pass through unharmed. The reverse is possible too:</p>
-
-<pre>$config->set('HTML', 'Doctype', 'XHTML 1.0 Transitional');
-$config->set('HTML', 'TidyLevel', 'none'); // no changes, plus...
-<strong>$config->set('HTML', 'TidyAdd', 'p@align');</strong></pre>
-
-<p>In this case, all transformations are shut off, except for the p@align
-one, which you found handy.</p>
-
-<p>To find out what the names of fixes you want to turn on or off are,
-you'll have to consult the source code, specifically the files in
-<code>HTMLPurifier/HTMLModule/Tidy/</code>. There is, however, a
-general syntax:</p>
-
-<table class="table">
-    <thead>
-        <tr>
-            <th>Name</th>
-            <th>Example</th>
-            <th>Interpretation</th>
-        </tr>
-    </thead>
-    <tbody>
-        <tr>
-            <td>element</td>
-            <td>font</td>
-            <td>Tag transform for <em>element</em></td>
-        </tr>
-        <tr>
-            <td>element@attr</td>
-            <td>br@clear</td>
-            <td>Attribute transform for <em>attr</em> on <em>element</em></td>
-        </tr>
-        <tr>
-            <td>@attr</td>
-            <td>@lang</td>
-            <td>Global attribute transform for <em>attr</em></td>
-        </tr>
-        <tr>
-            <td>e#content_model_type</td>
-            <td>blockquote#content_model_type</td>
-            <td>Change of child processing implementation for <em>e</em></td>
-        </tr>
-    </tbody>
-</table>
-
-<h2>So... what's the lowdown?</h2>
-
-<p>The lowdown is, quite frankly, HTML Purifier's default settings are
-probably good enough. The next step is to bump the level up to heavy,
-and if that still doesn't satisfy your appetite, do some fine-tuning.
-Other than that, don't worry about it: this all works silently and
-effectively in the background.</p>
-
-<div id="version">$Id: enduser-tidy.html 1397 2007-08-26 18:20:46Z Edward $</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/enduser-uri-filter.html

@@ -1,201 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Tutorial for creating custom URI filters." />
-<link rel="stylesheet" type="text/css" href="style.css" />
-
-<title>URI Filters - HTML Purifier</title>
-
-</head><body>
-
-<h1>URI Filters</h1>
-
-<div id="filing">Filed under End-User</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>
-  This is a quick and dirty document to get you on your way to writing
-  custom URI filters for your own URL filtering needs.  Why would you
-  want to write a URI filter?  If you need URIs your users put into
-  HTML to magically change into a different URI, this is
-  exactly what you need!
-</p>
-
-<h2>Creating the class</h2>
-
-<p>
-  Any URI filter you make will be a subclass of <code>HTMLPurifier_URIFilter</code>.
-  The scaffolding is thus:
-</p>
-
-<pre>class HTMLPurifier_URIFilter_<strong>NameOfFilter</strong> extends HTMLPurifier_URIFilter
-{
-    var $name = '<strong>NameOfFilter</strong>';
-    function prepare($config) {}
-    function filter(&$uri, $config, &$context) {}
-}</pre>
-
-<p>
-  Fill in the variable <code>$name</code> with the name of your filter, and
-  take a look at the two methods. <code>prepare()</code> is an initialization
-  method that is called only once, before any filtering has been done of the
-  HTML. Use it to perform any costly setup work that only needs to be done
-  once. <code>filter()</code> is the guts and innards of our filter:
-  it takes the URI and does whatever needs to be done to it.
-</p>
-
-<p>
-  If you've worked with HTML Purifier, you'll recognize the <code>$config</code>
-  and <code>$context</code> parameters.  On the other hand, <code>$uri</code>
-  is something unique to this section of the application: it's a
-  <code>HTMLPurifier_URI</code> object. The interface is thus:
-</p>
-
-<pre>class HTMLPurifier_URI
-{
-    var $scheme, $userinfo, $host, $port, $path, $query, $fragment;
-    function HTMLPurifier_URI($scheme, $userinfo, $host, $port, $path, $query, $fragment);
-    function toString();
-    function copy();
-    function getSchemeObj($config, &$context);
-    function validate($config, &$context);
-}</pre>
-
-<p>
-  The first three methods are fairly self-explanatory: you have a constructor,
-  a serializer, and a cloner.  Generally, you won't be using them when
-  you are manipulating the URI objects themselves.
-  <code>getSchemeObj()</code> is a special purpose method that returns
-  a <code>HTMLPurifier_URIScheme</code> object corresponding to the specific
-  URI at hand. <code>validate()</code> performs general-purpose validation
-  on the internal components of a URI. Once again, you don't need to
-  worry about these: they've already been handled for you.
-</p>
-
-<h2>URI format</h2>
-
-<p>
-  As a URIFilter, we're interested in the member variables of the URI object.
-</p>
-
-<table class="quick"><tbody>
-  <tr><th>Scheme</th>   <td>The protocol for identifying (and possibly locating) a resource (http, ftp, https)</td></tr>
-  <tr><th>Userinfo</th> <td>User information such as a username (bob)</td></tr>
-  <tr><th>Host</th>     <td>Domain name or IP address of the server (example.com, 127.0.0.1)</td></tr>
-  <tr><th>Port</th>     <td>Network port number for the server (80, 12345)</td></tr>
-  <tr><th>Path</th>     <td>Data that identifies the resource, possibly hierarchical (/path/to, ed@example.com)</td></tr>
-  <tr><th>Query</th>    <td>String of information to be interpreted by the resource (?q=search-term)</td></tr>
-  <tr><th>Fragment</th> <td>Additional information for the resource after retrieval (#bookmark)</td></tr>
-</tbody></table>
-
-<p>
-  Because the URI is presented to us in this form, and not 
-  <code>http://bob@example.com:8080/foo.php?q=string#hash</code>, it saves us
-  a lot of trouble in having to parse the URI every time we want to filter
-  it. For the record, the above URI has the following components:
-</p>
-
-<table class="quick"><tbody>
-  <tr><th>Scheme</th>   <td>http</td></tr>
-  <tr><th>Userinfo</th> <td>bob</td></tr>
-  <tr><th>Host</th>     <td>example.com</td></tr>
-  <tr><th>Port</th>     <td>8080</td></tr>
-  <tr><th>Path</th>     <td>/foo.php</td></tr>
-  <tr><th>Query</th>    <td>q=string</td></tr>
-  <tr><th>Fragment</th> <td>hash</td></tr>
-</tbody></table>
-
-<p>
-  Note that there is no question mark or octothorpe in the query or
-  fragment: these get removed during parsing.
-</p>
-
-<p>
-  With this information, you can get straight to implementing your
-  <code>filter()</code> method. But one more thing...
-</p>
-
-<h2>Return value: Boolean, not URI</h2>
-
-<p>
-  You may have noticed that the URI is being passed in by reference.
-  This means that whatever changes you make to it, those changes will
-  be reflected in the URI object the callee had.  <strong>Do not
-  return the URI object: it is unnecessary and will cause bugs.</strong>
-  Instead, return a boolean value, true if the filtering was successful,
-  or false if the URI is beyond repair and needs to be axed.
-</p>
-
-<p>
-  Let's suppose I wanted to write a filter that de-internationalized domain
-  names by converting them to <a href="http://en.wikipedia.org/wiki/Punycode">Punycode</a>.
-  Assuming that <code>punycode_encode($input)</code> converts <code>$input</code> to
-  Punycode and returns <code>false</code> on failure:
-</p>
-
-<pre>class HTMLPurifier_URIFilter_ConvertIDNToPunycode extends HTMLPurifier_URIFilter
-{
-    var $name = 'ConvertIDNToPunycode';
-    function filter(&$uri, $config, &$context) {
-        if (is_null($uri->host)) return true;
-        if ($uri->host == utf8_decode($uri->host)) {
-            // is ASCII, abort
-            return true;
-        }
-        $host = punycode_encode($uri->host);
-        if ($host === false) return false;
-        $uri->host = $host;
-        return true;
-    }
-}</pre>
-
-<p>
-  Notice I did not <code>return $uri;</code>.
-</p>
-
-<h2>Activating your filter</h2>
-
-<p>
-  Having a filter is all well and good, but you need to tell HTML Purifier
-  to use it. Fortunately, this part's simple:
-</p>
-
-<pre>$uri =& $config->getDefinition('URI');
-$uri->addFilter(new HTMLPurifier_URIFilter_<strong>NameOfFilter</strong>());</pre>
-
-<p>
-  If you want to be really fancy, you can define a configuration directive
-  for your filter and have HTML Purifier automatically manage whether or
-  not your filter gets loaded or not (this is how internal filters manage
-  things):
-</p>
-
-<pre>HTMLPurifier_ConfigSchema::define(
-    'URI', '<strong>NameOfFilter</strong>', false, 'bool',
-    '<strong>What your filter does.</strong>'
-);
-$uri =& $config->getDefinition('URI', true);
-$uri->registerFilter(new HTMLPurifier_URIFilter_<strong>NameOfFilter</strong>());
-</pre>
-
-<p>
-  Now, your filter will only be called when %URI.<strong>NameOfFilter</strong>
-  is set to true.
-</p>
-
-<h2>Examples</h2>
-
-<p>
-  Check the
-  <a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/URIFilter/">URIFilter</a>
-  directory for more implementation examples, and see <a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/docs/proposal-new-directives.txt">the
-  new directives proposal document</a> for ideas on what could be implemented
-  as a filter.
-</p>
-
-<div id="version">$Id$</div>
-
-</body></html>

lib/htmlpurifier-3.0.0/docs/enduser-youtube.html

@@ -1,152 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Explains how to safely allow the embedding of flash from trusted sites in HTML Purifier." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Embedding YouTube Videos - HTML Purifier</title>
-
-</head><body>
-
-<h1 class="subtitled">Embedding YouTube Videos</h1>
-<div class="subtitle">...as well as other dangerous active content</div>
-
-<div id="filing">Filed under End-User</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>Clients like their YouTube videos. It gives them a warm fuzzy feeling when
-they see a neat little embedded video player on their websites that can play
-the latest clips from their documentary &quot;Fido and the Bones of Spring&quot;.
-All joking aside, the ability to embed YouTube videos or other active
-content in their pages is something that a lot of people like.</p>
-
-<p>This is a <em>bad</em> idea. The moment you embed anything untrusted,
-you will definitely be slammed by a manner of nasties that can be
-embedded in things from your run of the mill Flash movie to
-<a href="http://blog.spywareguide.com/2006/12/myspace_phish_attack_leads_use.html">Quicktime movies</a>.
-Even <code>img</code> tags, which HTML Purifier allows by default, can be
-dangerous. Be distrustful of anything that tells a browser to load content
-from another website automatically.</p>
-
-<p>Luckily for us, however, whitelisting saves the day. Sure, letting users
-include any old random flash file could be dangerous, but if it's
-from a specific website, it probably is okay. If no amount of pleading will
-convince the people upstairs that they should just settle with just linking
-to their movies, you may find this technique very useful.</p>
-
-<h2>Looking in</h2>
-
-<p>Below is custom code that allows users to embed
-YouTube videos. This is not favoritism: this trick can easily be adapted for
-other forms of embeddable content.</p>
-
-<p>Usually, websites like YouTube give us boilerplate code that you can insert
-into your documents. YouTube's code goes like this:</p>
-
-<pre>
-&lt;object width=&quot;425&quot; height=&quot;350&quot;&gt;
-  &lt;param name=&quot;movie&quot; value=&quot;http://www.youtube.com/v/AyPzM5WK8ys&quot; /&gt;
-  &lt;param name=&quot;wmode&quot; value=&quot;transparent&quot; /&gt;
-  &lt;embed src=&quot;http://www.youtube.com/v/AyPzM5WK8ys&quot;
-         type=&quot;application/x-shockwave-flash&quot;
-         wmode=&quot;transparent&quot; width=&quot;425&quot; height=&quot;350&quot; /&gt;
-&lt;/object&gt;
-</pre>
-
-<p>There are two things to note about this code:</p>
-
-<ol>
-    <li><code>&lt;embed&gt;</code> is not recognized by W3C, so if you want
-        standards-compliant code, you'll have to get rid of it.</li>
-    <li>The code is exactly the same for all instances, except for the
-        identifier <tt>AyPzM5WK8ys</tt> which tells us which movie file
-        to retrieve.</li>
-</ol>
-
-<p>What point 2 means is that if we have code like <code>&lt;span
-class=&quot;embed-youtube&quot;&gt;AyPzM5WK8ys&lt;/span&gt;</code> your
-application can reconstruct the full object from this small snippet that
-passes through HTML Purifier <em>unharmed</em>.
-<a href="http://htmlpurifier.org/svnroot/htmlpurifier/trunk/library/HTMLPurifier/Filter/YouTube.php">Show me the code!</a></p>
-
-<p>And the corresponding usage:</p>
-
-<pre>&lt;?php
-    // assuming $purifier is an instance of HTMLPurifier
-    require_once 'HTMLPurifier/Filter/YouTube.php';
-    $purifier-&gt;addFilter(new HTMLPurifier_Filter_YouTube());
-?&gt;</pre>
-
-<p>There is a bit going in the two code snippets, so let's explain.</p>
-
-<ol>
-    <li>This is a Filter object, which intercepts the HTML that is
-        coming into and out of the purifier. You can add as many
-        filter objects as you like. <code>preFilter()</code>
-        processes the code before it gets purified, and <code>postFilter()</code>
-        processes the code afterwards. So, we'll use <code>preFilter()</code> to
-        replace the object tag with a <code>span</code>, and <code>postFilter()</code>
-        to restore it.</li>
-    <li>The first preg_replace call replaces any YouTube code users may have
-        embedded into the benign span tag. Span is used because it is inline,
-        and objects are inline too. We are very careful to be extremely
-        restrictive on what goes inside the span tag, as if an errant code
-        gets in there it could get messy.</li>
-    <li>The HTML is then purified as usual.</li>
-    <li>Then, another preg_replace replaces the span tag with a fully fledged
-        object. Note that the embed is removed, and, in its place, a data
-        attribute was added to the object. This makes the tag standards
-        compliant! It also breaks Internet Explorer, so we add in a bit of
-        conditional comments with the old embed code to make it work again.
-        It's all quite convoluted but works.</li>
-</ol>
-
-<h2>Warning</h2>
-
-<p>There are a number of possible problems with the code above, depending
-on how you look at it.</p>
-
-<h3>Cannot change width and height</h3>
-
-<p>The width and height of the final YouTube movie cannot be adjusted. This
-is because I am lazy. If you really insist on letting users change the size
-of the movie, what you need to do is package up the attributes inside the
-span tag (along with the movie ID). It gets complicated though: a malicious
-user can specify an outrageously large height and width and attempt to crash
-the user's operating system/browser. You need to either cap it by limiting
-the amount of digits allowed in the regex or using a callback to check the
-number.</p>
-
-<h3>Trusts media's host's security</h3>
-
-<p>By allowing this code onto our website, we are trusting that YouTube has
-tech-savvy enough people not to allow their users to inject malicious
-code into the Flash files.  An exploit on YouTube means an exploit on your
-site.  Even though YouTube is run by the reputable Google, it
-<a href="http://ha.ckers.org/blog/20061213/google-xss-vuln/">doesn't</a>
-mean they are
-<a href="http://ha.ckers.org/blog/20061208/xss-in-googles-orkut/">invulnerable.</a>
-You're putting a certain measure of the job on an external provider (just as
-you have by entrusting your user input to HTML Purifier), and
-it is important that you are cognizant of the risk.</p>
-
-<h3>Poorly written adaptations compromise security</h3>
-
-<p>This should go without saying, but if you're going to adapt this code
-for Google Video or the like, make sure you do it <em>right</em>. It's
-extremely easy to allow a character too many in <code>postFilter()</code> and
-suddenly you're introducing XSS into HTML Purifier's XSS free output. HTML
-Purifier may be well written, but it cannot guard against vulnerabilities
-introduced after it has finished.</p>
-
-<h2>Help out!</h2>
-
-<p>If you write a filter for your favorite video destination (or anything
-like that, for that matter), send it over and it might get included
-with the core!</p>
-
-</body>
-</html>

lib/htmlpurifier-3.0.0/docs/entities/xhtml-lat1.ent

@@ -1,196 +0,0 @@
-<!-- Portions (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-    <!ENTITY % HTMLlat1 PUBLIC
-       "-//W3C//ENTITIES Latin 1 for XHTML//EN"
-       "http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent">
-    %HTMLlat1;
--->
-
-<!ENTITY nbsp   "&#160;"> <!-- no-break space = non-breaking space,
-                                  U+00A0 ISOnum -->
-<!ENTITY iexcl  "&#161;"> <!-- inverted exclamation mark, U+00A1 ISOnum -->
-<!ENTITY cent   "&#162;"> <!-- cent sign, U+00A2 ISOnum -->
-<!ENTITY pound  "&#163;"> <!-- pound sign, U+00A3 ISOnum -->
-<!ENTITY curren "&#164;"> <!-- currency sign, U+00A4 ISOnum -->
-<!ENTITY yen    "&#165;"> <!-- yen sign = yuan sign, U+00A5 ISOnum -->
-<!ENTITY brvbar "&#166;"> <!-- broken bar = broken vertical bar,
-                                  U+00A6 ISOnum -->
-<!ENTITY sect   "&#167;"> <!-- section sign, U+00A7 ISOnum -->
-<!ENTITY uml    "&#168;"> <!-- diaeresis = spacing diaeresis,
-                                  U+00A8 ISOdia -->
-<!ENTITY copy   "&#169;"> <!-- copyright sign, U+00A9 ISOnum -->
-<!ENTITY ordf   "&#170;"> <!-- feminine ordinal indicator, U+00AA ISOnum -->
-<!ENTITY laquo  "&#171;"> <!-- left-pointing double angle quotation mark
-                                  = left pointing guillemet, U+00AB ISOnum -->
-<!ENTITY not    "&#172;"> <!-- not sign = angled dash,
-                                  U+00AC ISOnum -->
-<!ENTITY shy    "&#173;"> <!-- soft hyphen = discretionary hyphen,
-                                  U+00AD ISOnum -->
-<!ENTITY reg    "&#174;"> <!-- registered sign = registered trade mark sign,
-                                  U+00AE ISOnum -->
-<!ENTITY macr   "&#175;"> <!-- macron = spacing macron = overline
-                                  = APL overbar, U+00AF ISOdia -->
-<!ENTITY deg    "&#176;"> <!-- degree sign, U+00B0 ISOnum -->
-<!ENTITY plusmn "&#177;"> <!-- plus-minus sign = plus-or-minus sign,
-                                  U+00B1 ISOnum -->
-<!ENTITY sup2   "&#178;"> <!-- superscript two = superscript digit two
-                                  = squared, U+00B2 ISOnum -->
-<!ENTITY sup3   "&#179;"> <!-- superscript three = superscript digit three
-                                  = cubed, U+00B3 ISOnum -->
-<!ENTITY acute  "&#180;"> <!-- acute accent = spacing acute,
-                                  U+00B4 ISOdia -->
-<!ENTITY micro  "&#181;"> <!-- micro sign, U+00B5 ISOnum -->
-<!ENTITY para   "&#182;"> <!-- pilcrow sign = paragraph sign,
-                                  U+00B6 ISOnum -->
-<!ENTITY middot "&#183;"> <!-- middle dot = Georgian comma
-                                  = Greek middle dot, U+00B7 ISOnum -->
-<!ENTITY cedil  "&#184;"> <!-- cedilla = spacing cedilla, U+00B8 ISOdia -->
-<!ENTITY sup1   "&#185;"> <!-- superscript one = superscript digit one,
-                                  U+00B9 ISOnum -->
-<!ENTITY ordm   "&#186;"> <!-- masculine ordinal indicator,
-                                  U+00BA ISOnum -->
-<!ENTITY raquo  "&#187;"> <!-- right-pointing double angle quotation mark
-                                  = right pointing guillemet, U+00BB ISOnum -->
-<!ENTITY frac14 "&#188;"> <!-- vulgar fraction one quarter
-                                  = fraction one quarter, U+00BC ISOnum -->
-<!ENTITY frac12 "&#189;"> <!-- vulgar fraction one half
-                                  = fraction one half, U+00BD ISOnum -->
-<!ENTITY frac34 "&#190;"> <!-- vulgar fraction three quarters
-                                  = fraction three quarters, U+00BE ISOnum -->
-<!ENTITY iquest "&#191;"> <!-- inverted question mark
-                                  = turned question mark, U+00BF ISOnum -->
-<!ENTITY Agrave "&#192;"> <!-- latin capital letter A with grave
-                                  = latin capital letter A grave,
-                                  U+00C0 ISOlat1 -->
-<!ENTITY Aacute "&#193;"> <!-- latin capital letter A with acute,
-                                  U+00C1 ISOlat1 -->
-<!ENTITY Acirc  "&#194;"> <!-- latin capital letter A with circumflex,
-                                  U+00C2 ISOlat1 -->
-<!ENTITY Atilde "&#195;"> <!-- latin capital letter A with tilde,
-                                  U+00C3 ISOlat1 -->
-<!ENTITY Auml   "&#196;"> <!-- latin capital letter A with diaeresis,
-                                  U+00C4 ISOlat1 -->
-<!ENTITY Aring  "&#197;"> <!-- latin capital letter A with ring above
-                                  = latin capital letter A ring,
-                                  U+00C5 ISOlat1 -->
-<!ENTITY AElig  "&#198;"> <!-- latin capital letter AE
-                                  = latin capital ligature AE,
-                                  U+00C6 ISOlat1 -->
-<!ENTITY Ccedil "&#199;"> <!-- latin capital letter C with cedilla,
-                                  U+00C7 ISOlat1 -->
-<!ENTITY Egrave "&#200;"> <!-- latin capital letter E with grave,
-                                  U+00C8 ISOlat1 -->
-<!ENTITY Eacute "&#201;"> <!-- latin capital letter E with acute,
-                                  U+00C9 ISOlat1 -->
-<!ENTITY Ecirc  "&#202;"> <!-- latin capital letter E with circumflex,
-                                  U+00CA ISOlat1 -->
-<!ENTITY Euml   "&#203;"> <!-- latin capital letter E with diaeresis,
-                                  U+00CB ISOlat1 -->
-<!ENTITY Igrave "&#204;"> <!-- latin capital letter I with grave,
-                                  U+00CC ISOlat1 -->
-<!ENTITY Iacute "&#205;"> <!-- latin capital letter I with acute,
-                                  U+00CD ISOlat1 -->
-<!ENTITY Icirc  "&#206;"> <!-- latin capital letter I with circumflex,
-                                  U+00CE ISOlat1 -->
-<!ENTITY Iuml   "&#207;"> <!-- latin capital letter I with diaeresis,
-                                  U+00CF ISOlat1 -->
-<!ENTITY ETH    "&#208;"> <!-- latin capital letter ETH, U+00D0 ISOlat1 -->
-<!ENTITY Ntilde "&#209;"> <!-- latin capital letter N with tilde,
-                                  U+00D1 ISOlat1 -->
-<!ENTITY Ograve "&#210;"> <!-- latin capital letter O with grave,
-                                  U+00D2 ISOlat1 -->
-<!ENTITY Oacute "&#211;"> <!-- latin capital letter O with acute,
-                                  U+00D3 ISOlat1 -->
-<!ENTITY Ocirc  "&#212;"> <!-- latin capital letter O with circumflex,
-                                  U+00D4 ISOlat1 -->
-<!ENTITY Otilde "&#213;"> <!-- latin capital letter O with tilde,
-                                  U+00D5 ISOlat1 -->
-<!ENTITY Ouml   "&#214;"> <!-- latin capital letter O with diaeresis,
-                                  U+00D6 ISOlat1 -->
-<!ENTITY times  "&#215;"> <!-- multiplication sign, U+00D7 ISOnum -->
-<!ENTITY Oslash "&#216;"> <!-- latin capital letter O with stroke
-                                  = latin capital letter O slash,
-                                  U+00D8 ISOlat1 -->
-<!ENTITY Ugrave "&#217;"> <!-- latin capital letter U with grave,
-                                  U+00D9 ISOlat1 -->
-<!ENTITY Uacute "&#218;"> <!-- latin capital letter U with acute,
-                                  U+00DA ISOlat1 -->
-<!ENTITY Ucirc  "&#219;"> <!-- latin capital letter U with circumflex,
-                                  U+00DB ISOlat1 -->
-<!ENTITY Uuml   "&#220;"> <!-- latin capital letter U with diaeresis,
-                                  U+00DC ISOlat1 -->
-<!ENTITY Yacute "&#221;"> <!-- latin capital letter Y with acute,
-                                  U+00DD ISOlat1 -->
-<!ENTITY THORN  "&#222;"> <!-- latin capital letter THORN,
-                                  U+00DE ISOlat1 -->
-<!ENTITY szlig  "&#223;"> <!-- latin small letter sharp s = ess-zed,
-                                  U+00DF ISOlat1 -->
-<!ENTITY agrave "&#224;"> <!-- latin small letter a with grave
-                                  = latin small letter a grave,
-                                  U+00E0 ISOlat1 -->
-<!ENTITY aacute "&#225;"> <!-- latin small letter a with acute,
-                                  U+00E1 ISOlat1 -->
-<!ENTITY acirc  "&#226;"> <!-- latin small letter a with circumflex,
-                                  U+00E2 ISOlat1 -->
-<!ENTITY atilde "&#227;"> <!-- latin small letter a with tilde,
-                                  U+00E3 ISOlat1 -->
-<!ENTITY auml   "&#228;"> <!-- latin small letter a with diaeresis,
-                                  U+00E4 ISOlat1 -->
-<!ENTITY aring  "&#229;"> <!-- latin small letter a with ring above
-                                  = latin small letter a ring,
-                                  U+00E5 ISOlat1 -->
-<!ENTITY aelig  "&#230;"> <!-- latin small letter ae
-                                  = latin small ligature ae, U+00E6 ISOlat1 -->
-<!ENTITY ccedil "&#231;"> <!-- latin small letter c with cedilla,
-                                  U+00E7 ISOlat1 -->
-<!ENTITY egrave "&#232;"> <!-- latin small letter e with grave,
-                                  U+00E8 ISOlat1 -->
-<!ENTITY eacute "&#233;"> <!-- latin small letter e with acute,
-                                  U+00E9 ISOlat1 -->
-<!ENTITY ecirc  "&#234;"> <!-- latin small letter e with circumflex,
-                                  U+00EA ISOlat1 -->
-<!ENTITY euml   "&#235;"> <!-- latin small letter e with diaeresis,
-                                  U+00EB ISOlat1 -->
-<!ENTITY igrave "&#236;"> <!-- latin small letter i with grave,
-                                  U+00EC ISOlat1 -->
-<!ENTITY iacute "&#237;"> <!-- latin small letter i with acute,
-                                  U+00ED ISOlat1 -->
-<!ENTITY icirc  "&#238;"> <!-- latin small letter i with circumflex,
-                                  U+00EE ISOlat1 -->
-<!ENTITY iuml   "&#239;"> <!-- latin small letter i with diaeresis,
-                                  U+00EF ISOlat1 -->
-<!ENTITY eth    "&#240;"> <!-- latin small letter eth, U+00F0 ISOlat1 -->
-<!ENTITY ntilde "&#241;"> <!-- latin small letter n with tilde,
-                                  U+00F1 ISOlat1 -->
-<!ENTITY ograve "&#242;"> <!-- latin small letter o with grave,
-                                  U+00F2 ISOlat1 -->
-<!ENTITY oacute "&#243;"> <!-- latin small letter o with acute,
-                                  U+00F3 ISOlat1 -->
-<!ENTITY ocirc  "&#244;"> <!-- latin small letter o with circumflex,
-                                  U+00F4 ISOlat1 -->
-<!ENTITY otilde "&#245;"> <!-- latin small letter o with tilde,
-                                  U+00F5 ISOlat1 -->
-<!ENTITY ouml   "&#246;"> <!-- latin small letter o with diaeresis,
-                                  U+00F6 ISOlat1 -->
-<!ENTITY divide "&#247;"> <!-- division sign, U+00F7 ISOnum -->
-<!ENTITY oslash "&#248;"> <!-- latin small letter o with stroke,
-                                  = latin small letter o slash,
-                                  U+00F8 ISOlat1 -->
-<!ENTITY ugrave "&#249;"> <!-- latin small letter u with grave,
-                                  U+00F9 ISOlat1 -->
-<!ENTITY uacute "&#250;"> <!-- latin small letter u with acute,
-                                  U+00FA ISOlat1 -->
-<!ENTITY ucirc  "&#251;"> <!-- latin small letter u with circumflex,
-                                  U+00FB ISOlat1 -->
-<!ENTITY uuml   "&#252;"> <!-- latin small letter u with diaeresis,
-                                  U+00FC ISOlat1 -->
-<!ENTITY yacute "&#253;"> <!-- latin small letter y with acute,
-                                  U+00FD ISOlat1 -->
-<!ENTITY thorn  "&#254;"> <!-- latin small letter thorn,
-                                  U+00FE ISOlat1 -->
-<!ENTITY yuml   "&#255;"> <!-- latin small letter y with diaeresis,
-                                  U+00FF ISOlat1 -->

lib/htmlpurifier-3.0.0/docs/entities/xhtml-special.ent

@@ -1,80 +0,0 @@
-<!-- Special characters for XHTML -->
-
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % HTMLspecial PUBLIC
-        "-//W3C//ENTITIES Special for XHTML//EN"
-        "http://www.w3.org/TR/xhtml1/DTD/xhtml-special.ent">
-     %HTMLspecial;
--->
-
-<!-- Portions (C) International Organization for Standardization 1986:
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-
-<!-- Relevant ISO entity set is given unless names are newly introduced.
-     New names (i.e., not in ISO 8879 list) do not clash with any
-     existing ISO 8879 entity names. ISO 10646 character numbers
-     are given for each character, in hex. values are decimal
-     conversions of the ISO 10646 values and refer to the document
-     character set. Names are Unicode names. 
--->
-
-<!-- C0 Controls and Basic Latin -->
-<!ENTITY quot    "&#34;"> <!--  quotation mark, U+0022 ISOnum -->
-<!ENTITY amp     "&#38;#38;"> <!--  ampersand, U+0026 ISOnum -->
-<!ENTITY lt      "&#38;#60;"> <!--  less-than sign, U+003C ISOnum -->
-<!ENTITY gt      "&#62;"> <!--  greater-than sign, U+003E ISOnum -->
-<!ENTITY apos	 "&#39;"> <!--  apostrophe = APL quote, U+0027 ISOnum -->
-
-<!-- Latin Extended-A -->
-<!ENTITY OElig   "&#338;"> <!--  latin capital ligature OE,
-                                    U+0152 ISOlat2 -->
-<!ENTITY oelig   "&#339;"> <!--  latin small ligature oe, U+0153 ISOlat2 -->
-<!-- ligature is a misnomer, this is a separate character in some languages -->
-<!ENTITY Scaron  "&#352;"> <!--  latin capital letter S with caron,
-                                    U+0160 ISOlat2 -->
-<!ENTITY scaron  "&#353;"> <!--  latin small letter s with caron,
-                                    U+0161 ISOlat2 -->
-<!ENTITY Yuml    "&#376;"> <!--  latin capital letter Y with diaeresis,
-                                    U+0178 ISOlat2 -->
-
-<!-- Spacing Modifier Letters -->
-<!ENTITY circ    "&#710;"> <!--  modifier letter circumflex accent,
-                                    U+02C6 ISOpub -->
-<!ENTITY tilde   "&#732;"> <!--  small tilde, U+02DC ISOdia -->
-
-<!-- General Punctuation -->
-<!ENTITY ensp    "&#8194;"> <!-- en space, U+2002 ISOpub -->
-<!ENTITY emsp    "&#8195;"> <!-- em space, U+2003 ISOpub -->
-<!ENTITY thinsp  "&#8201;"> <!-- thin space, U+2009 ISOpub -->
-<!ENTITY zwnj    "&#8204;"> <!-- zero width non-joiner,
-                                    U+200C NEW RFC 2070 -->
-<!ENTITY zwj     "&#8205;"> <!-- zero width joiner, U+200D NEW RFC 2070 -->
-<!ENTITY lrm     "&#8206;"> <!-- left-to-right mark, U+200E NEW RFC 2070 -->
-<!ENTITY rlm     "&#8207;"> <!-- right-to-left mark, U+200F NEW RFC 2070 -->
-<!ENTITY ndash   "&#8211;"> <!-- en dash, U+2013 ISOpub -->
-<!ENTITY mdash   "&#8212;"> <!-- em dash, U+2014 ISOpub -->
-<!ENTITY lsquo   "&#8216;"> <!-- left single quotation mark,
-                                    U+2018 ISOnum -->
-<!ENTITY rsquo   "&#8217;"> <!-- right single quotation mark,
-                                    U+2019 ISOnum -->
-<!ENTITY sbquo   "&#8218;"> <!-- single low-9 quotation mark, U+201A NEW -->
-<!ENTITY ldquo   "&#8220;"> <!-- left double quotation mark,
-                                    U+201C ISOnum -->
-<!ENTITY rdquo   "&#8221;"> <!-- right double quotation mark,
-                                    U+201D ISOnum -->
-<!ENTITY bdquo   "&#8222;"> <!-- double low-9 quotation mark, U+201E NEW -->
-<!ENTITY dagger  "&#8224;"> <!-- dagger, U+2020 ISOpub -->
-<!ENTITY Dagger  "&#8225;"> <!-- double dagger, U+2021 ISOpub -->
-<!ENTITY permil  "&#8240;"> <!-- per mille sign, U+2030 ISOtech -->
-<!ENTITY lsaquo  "&#8249;"> <!-- single left-pointing angle quotation mark,
-                                    U+2039 ISO proposed -->
-<!-- lsaquo is proposed but not yet ISO standardized -->
-<!ENTITY rsaquo  "&#8250;"> <!-- single right-pointing angle quotation mark,
-                                    U+203A ISO proposed -->
-<!-- rsaquo is proposed but not yet ISO standardized -->
-
-<!-- Currency Symbols -->
-<!ENTITY euro   "&#8364;"> <!--  euro sign, U+20AC NEW -->

lib/htmlpurifier-3.0.0/docs/entities/xhtml-symbol.ent

@@ -1,237 +0,0 @@
-<!-- Mathematical, Greek and Symbolic characters for XHTML -->
-
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % HTMLsymbol PUBLIC
-        "-//W3C//ENTITIES Symbols for XHTML//EN"
-        "http://www.w3.org/TR/xhtml1/DTD/xhtml-symbol.ent">
-     %HTMLsymbol;
--->
-
-<!-- Portions (C) International Organization for Standardization 1986:
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-
-<!-- Relevant ISO entity set is given unless names are newly introduced.
-     New names (i.e., not in ISO 8879 list) do not clash with any
-     existing ISO 8879 entity names. ISO 10646 character numbers
-     are given for each character, in hex. values are decimal
-     conversions of the ISO 10646 values and refer to the document
-     character set. Names are Unicode names. 
--->
-
-<!-- Latin Extended-B -->
-<!ENTITY fnof     "&#402;"> <!-- latin small letter f with hook = function
-                                    = florin, U+0192 ISOtech -->
-
-<!-- Greek -->
-<!ENTITY Alpha    "&#913;"> <!-- greek capital letter alpha, U+0391 -->
-<!ENTITY Beta     "&#914;"> <!-- greek capital letter beta, U+0392 -->
-<!ENTITY Gamma    "&#915;"> <!-- greek capital letter gamma,
-                                    U+0393 ISOgrk3 -->
-<!ENTITY Delta    "&#916;"> <!-- greek capital letter delta,
-                                    U+0394 ISOgrk3 -->
-<!ENTITY Epsilon  "&#917;"> <!-- greek capital letter epsilon, U+0395 -->
-<!ENTITY Zeta     "&#918;"> <!-- greek capital letter zeta, U+0396 -->
-<!ENTITY Eta      "&#919;"> <!-- greek capital letter eta, U+0397 -->
-<!ENTITY Theta    "&#920;"> <!-- greek capital letter theta,
-                                    U+0398 ISOgrk3 -->
-<!ENTITY Iota     "&#921;"> <!-- greek capital letter iota, U+0399 -->
-<!ENTITY Kappa    "&#922;"> <!-- greek capital letter kappa, U+039A -->
-<!ENTITY Lambda   "&#923;"> <!-- greek capital letter lamda,
-                                    U+039B ISOgrk3 -->
-<!ENTITY Mu       "&#924;"> <!-- greek capital letter mu, U+039C -->
-<!ENTITY Nu       "&#925;"> <!-- greek capital letter nu, U+039D -->
-<!ENTITY Xi       "&#926;"> <!-- greek capital letter xi, U+039E ISOgrk3 -->
-<!ENTITY Omicron  "&#927;"> <!-- greek capital letter omicron, U+039F -->
-<!ENTITY Pi       "&#928;"> <!-- greek capital letter pi, U+03A0 ISOgrk3 -->
-<!ENTITY Rho      "&#929;"> <!-- greek capital letter rho, U+03A1 -->
-<!-- there is no Sigmaf, and no U+03A2 character either -->
-<!ENTITY Sigma    "&#931;"> <!-- greek capital letter sigma,
-                                    U+03A3 ISOgrk3 -->
-<!ENTITY Tau      "&#932;"> <!-- greek capital letter tau, U+03A4 -->
-<!ENTITY Upsilon  "&#933;"> <!-- greek capital letter upsilon,
-                                    U+03A5 ISOgrk3 -->
-<!ENTITY Phi      "&#934;"> <!-- greek capital letter phi,
-                                    U+03A6 ISOgrk3 -->
-<!ENTITY Chi      "&#935;"> <!-- greek capital letter chi, U+03A7 -->
-<!ENTITY Psi      "&#936;"> <!-- greek capital letter psi,
-                                    U+03A8 ISOgrk3 -->
-<!ENTITY Omega    "&#937;"> <!-- greek capital letter omega,
-                                    U+03A9 ISOgrk3 -->
-
-<!ENTITY alpha    "&#945;"> <!-- greek small letter alpha,
-                                    U+03B1 ISOgrk3 -->
-<!ENTITY beta     "&#946;"> <!-- greek small letter beta, U+03B2 ISOgrk3 -->
-<!ENTITY gamma    "&#947;"> <!-- greek small letter gamma,
-                                    U+03B3 ISOgrk3 -->
-<!ENTITY delta    "&#948;"> <!-- greek small letter delta,
-                                    U+03B4 ISOgrk3 -->
-<!ENTITY epsilon  "&#949;"> <!-- greek small letter epsilon,
-                                    U+03B5 ISOgrk3 -->
-<!ENTITY zeta     "&#950;"> <!-- greek small letter zeta, U+03B6 ISOgrk3 -->
-<!ENTITY eta      "&#951;"> <!-- greek small letter eta, U+03B7 ISOgrk3 -->
-<!ENTITY theta    "&#952;"> <!-- greek small letter theta,
-                                    U+03B8 ISOgrk3 -->
-<!ENTITY iota     "&#953;"> <!-- greek small letter iota, U+03B9 ISOgrk3 -->
-<!ENTITY kappa    "&#954;"> <!-- greek small letter kappa,
-                                    U+03BA ISOgrk3 -->
-<!ENTITY lambda   "&#955;"> <!-- greek small letter lamda,
-                                    U+03BB ISOgrk3 -->
-<!ENTITY mu       "&#956;"> <!-- greek small letter mu, U+03BC ISOgrk3 -->
-<!ENTITY nu       "&#957;"> <!-- greek small letter nu, U+03BD ISOgrk3 -->
-<!ENTITY xi       "&#958;"> <!-- greek small letter xi, U+03BE ISOgrk3 -->
-<!ENTITY omicron  "&#959;"> <!-- greek small letter omicron, U+03BF NEW -->
-<!ENTITY pi       "&#960;"> <!-- greek small letter pi, U+03C0 ISOgrk3 -->
-<!ENTITY rho      "&#961;"> <!-- greek small letter rho, U+03C1 ISOgrk3 -->
-<!ENTITY sigmaf   "&#962;"> <!-- greek small letter final sigma,
-                                    U+03C2 ISOgrk3 -->
-<!ENTITY sigma    "&#963;"> <!-- greek small letter sigma,
-                                    U+03C3 ISOgrk3 -->
-<!ENTITY tau      "&#964;"> <!-- greek small letter tau, U+03C4 ISOgrk3 -->
-<!ENTITY upsilon  "&#965;"> <!-- greek small letter upsilon,
-                                    U+03C5 ISOgrk3 -->
-<!ENTITY phi      "&#966;"> <!-- greek small letter phi, U+03C6 ISOgrk3 -->
-<!ENTITY chi      "&#967;"> <!-- greek small letter chi, U+03C7 ISOgrk3 -->
-<!ENTITY psi      "&#968;"> <!-- greek small letter psi, U+03C8 ISOgrk3 -->
-<!ENTITY omega    "&#969;"> <!-- greek small letter omega,
-                                    U+03C9 ISOgrk3 -->
-<!ENTITY thetasym "&#977;"> <!-- greek theta symbol,
-                                    U+03D1 NEW -->
-<!ENTITY upsih    "&#978;"> <!-- greek upsilon with hook symbol,
-                                    U+03D2 NEW -->
-<!ENTITY piv      "&#982;"> <!-- greek pi symbol, U+03D6 ISOgrk3 -->
-
-<!-- General Punctuation -->
-<!ENTITY bull     "&#8226;"> <!-- bullet = black small circle,
-                                     U+2022 ISOpub  -->
-<!-- bullet is NOT the same as bullet operator, U+2219 -->
-<!ENTITY hellip   "&#8230;"> <!-- horizontal ellipsis = three dot leader,
-                                     U+2026 ISOpub  -->
-<!ENTITY prime    "&#8242;"> <!-- prime = minutes = feet, U+2032 ISOtech -->
-<!ENTITY Prime    "&#8243;"> <!-- double prime = seconds = inches,
-                                     U+2033 ISOtech -->
-<!ENTITY oline    "&#8254;"> <!-- overline = spacing overscore,
-                                     U+203E NEW -->
-<!ENTITY frasl    "&#8260;"> <!-- fraction slash, U+2044 NEW -->
-
-<!-- Letterlike Symbols -->
-<!ENTITY weierp   "&#8472;"> <!-- script capital P = power set
-                                     = Weierstrass p, U+2118 ISOamso -->
-<!ENTITY image    "&#8465;"> <!-- black-letter capital I = imaginary part,
-                                     U+2111 ISOamso -->
-<!ENTITY real     "&#8476;"> <!-- black-letter capital R = real part symbol,
-                                     U+211C ISOamso -->
-<!ENTITY trade    "&#8482;"> <!-- trade mark sign, U+2122 ISOnum -->
-<!ENTITY alefsym  "&#8501;"> <!-- alef symbol = first transfinite cardinal,
-                                     U+2135 NEW -->
-<!-- alef symbol is NOT the same as hebrew letter alef,
-     U+05D0 although the same glyph could be used to depict both characters -->
-
-<!-- Arrows -->
-<!ENTITY larr     "&#8592;"> <!-- leftwards arrow, U+2190 ISOnum -->
-<!ENTITY uarr     "&#8593;"> <!-- upwards arrow, U+2191 ISOnum-->
-<!ENTITY rarr     "&#8594;"> <!-- rightwards arrow, U+2192 ISOnum -->
-<!ENTITY darr     "&#8595;"> <!-- downwards arrow, U+2193 ISOnum -->
-<!ENTITY harr     "&#8596;"> <!-- left right arrow, U+2194 ISOamsa -->
-<!ENTITY crarr    "&#8629;"> <!-- downwards arrow with corner leftwards
-                                     = carriage return, U+21B5 NEW -->
-<!ENTITY lArr     "&#8656;"> <!-- leftwards double arrow, U+21D0 ISOtech -->
-<!-- Unicode does not say that lArr is the same as the 'is implied by' arrow
-    but also does not have any other character for that function. So lArr can
-    be used for 'is implied by' as ISOtech suggests -->
-<!ENTITY uArr     "&#8657;"> <!-- upwards double arrow, U+21D1 ISOamsa -->
-<!ENTITY rArr     "&#8658;"> <!-- rightwards double arrow,
-                                     U+21D2 ISOtech -->
-<!-- Unicode does not say this is the 'implies' character but does not have 
-     another character with this function so rArr can be used for 'implies'
-     as ISOtech suggests -->
-<!ENTITY dArr     "&#8659;"> <!-- downwards double arrow, U+21D3 ISOamsa -->
-<!ENTITY hArr     "&#8660;"> <!-- left right double arrow,
-                                     U+21D4 ISOamsa -->
-
-<!-- Mathematical Operators -->
-<!ENTITY forall   "&#8704;"> <!-- for all, U+2200 ISOtech -->
-<!ENTITY part     "&#8706;"> <!-- partial differential, U+2202 ISOtech  -->
-<!ENTITY exist    "&#8707;"> <!-- there exists, U+2203 ISOtech -->
-<!ENTITY empty    "&#8709;"> <!-- empty set = null set, U+2205 ISOamso -->
-<!ENTITY nabla    "&#8711;"> <!-- nabla = backward difference,
-                                     U+2207 ISOtech -->
-<!ENTITY isin     "&#8712;"> <!-- element of, U+2208 ISOtech -->
-<!ENTITY notin    "&#8713;"> <!-- not an element of, U+2209 ISOtech -->
-<!ENTITY ni       "&#8715;"> <!-- contains as member, U+220B ISOtech -->
-<!ENTITY prod     "&#8719;"> <!-- n-ary product = product sign,
-                                     U+220F ISOamsb -->
-<!-- prod is NOT the same character as U+03A0 'greek capital letter pi' though
-     the same glyph might be used for both -->
-<!ENTITY sum      "&#8721;"> <!-- n-ary summation, U+2211 ISOamsb -->
-<!-- sum is NOT the same character as U+03A3 'greek capital letter sigma'
-     though the same glyph might be used for both -->
-<!ENTITY minus    "&#8722;"> <!-- minus sign, U+2212 ISOtech -->
-<!ENTITY lowast   "&#8727;"> <!-- asterisk operator, U+2217 ISOtech -->
-<!ENTITY radic    "&#8730;"> <!-- square root = radical sign,
-                                     U+221A ISOtech -->
-<!ENTITY prop     "&#8733;"> <!-- proportional to, U+221D ISOtech -->
-<!ENTITY infin    "&#8734;"> <!-- infinity, U+221E ISOtech -->
-<!ENTITY ang      "&#8736;"> <!-- angle, U+2220 ISOamso -->
-<!ENTITY and      "&#8743;"> <!-- logical and = wedge, U+2227 ISOtech -->
-<!ENTITY or       "&#8744;"> <!-- logical or = vee, U+2228 ISOtech -->
-<!ENTITY cap      "&#8745;"> <!-- intersection = cap, U+2229 ISOtech -->
-<!ENTITY cup      "&#8746;"> <!-- union = cup, U+222A ISOtech -->
-<!ENTITY int      "&#8747;"> <!-- integral, U+222B ISOtech -->
-<!ENTITY there4   "&#8756;"> <!-- therefore, U+2234 ISOtech -->
-<!ENTITY sim      "&#8764;"> <!-- tilde operator = varies with = similar to,
-                                     U+223C ISOtech -->
-<!-- tilde operator is NOT the same character as the tilde, U+007E,
-     although the same glyph might be used to represent both  -->
-<!ENTITY cong     "&#8773;"> <!-- approximately equal to, U+2245 ISOtech -->
-<!ENTITY asymp    "&#8776;"> <!-- almost equal to = asymptotic to,
-                                     U+2248 ISOamsr -->
-<!ENTITY ne       "&#8800;"> <!-- not equal to, U+2260 ISOtech -->
-<!ENTITY equiv    "&#8801;"> <!-- identical to, U+2261 ISOtech -->
-<!ENTITY le       "&#8804;"> <!-- less-than or equal to, U+2264 ISOtech -->
-<!ENTITY ge       "&#8805;"> <!-- greater-than or equal to,
-                                     U+2265 ISOtech -->
-<!ENTITY sub      "&#8834;"> <!-- subset of, U+2282 ISOtech -->
-<!ENTITY sup      "&#8835;"> <!-- superset of, U+2283 ISOtech -->
-<!ENTITY nsub     "&#8836;"> <!-- not a subset of, U+2284 ISOamsn -->
-<!ENTITY sube     "&#8838;"> <!-- subset of or equal to, U+2286 ISOtech -->
-<!ENTITY supe     "&#8839;"> <!-- superset of or equal to,
-                                     U+2287 ISOtech -->
-<!ENTITY oplus    "&#8853;"> <!-- circled plus = direct sum,
-                                     U+2295 ISOamsb -->
-<!ENTITY otimes   "&#8855;"> <!-- circled times = vector product,
-                                     U+2297 ISOamsb -->
-<!ENTITY perp     "&#8869;"> <!-- up tack = orthogonal to = perpendicular,
-                                     U+22A5 ISOtech -->
-<!ENTITY sdot     "&#8901;"> <!-- dot operator, U+22C5 ISOamsb -->
-<!-- dot operator is NOT the same character as U+00B7 middle dot -->
-
-<!-- Miscellaneous Technical -->
-<!ENTITY lceil    "&#8968;"> <!-- left ceiling = APL upstile,
-                                     U+2308 ISOamsc  -->
-<!ENTITY rceil    "&#8969;"> <!-- right ceiling, U+2309 ISOamsc  -->
-<!ENTITY lfloor   "&#8970;"> <!-- left floor = APL downstile,
-                                     U+230A ISOamsc  -->
-<!ENTITY rfloor   "&#8971;"> <!-- right floor, U+230B ISOamsc  -->
-<!ENTITY lang     "&#9001;"> <!-- left-pointing angle bracket = bra,
-                                     U+2329 ISOtech -->
-<!-- lang is NOT the same character as U+003C 'less than sign' 
-     or U+2039 'single left-pointing angle quotation mark' -->
-<!ENTITY rang     "&#9002;"> <!-- right-pointing angle bracket = ket,
-                                     U+232A ISOtech -->
-<!-- rang is NOT the same character as U+003E 'greater than sign' 
-     or U+203A 'single right-pointing angle quotation mark' -->
-
-<!-- Geometric Shapes -->
-<!ENTITY loz      "&#9674;"> <!-- lozenge, U+25CA ISOpub -->
-
-<!-- Miscellaneous Symbols -->
-<!ENTITY spades   "&#9824;"> <!-- black spade suit, U+2660 ISOpub -->
-<!-- black here seems to mean filled as opposed to hollow -->
-<!ENTITY clubs    "&#9827;"> <!-- black club suit = shamrock,
-                                     U+2663 ISOpub -->
-<!ENTITY hearts   "&#9829;"> <!-- black heart suit = valentine,
-                                     U+2665 ISOpub -->
-<!ENTITY diams    "&#9830;"> <!-- black diamond suit, U+2666 ISOpub -->

lib/htmlpurifier-3.0.0/docs/examples/basic.php

@@ -1,22 +0,0 @@
-<?php
-
-// This file demonstrates basic usage of HTMLPurifier.
-
-// replace this with the path to the HTML Purifier library
-require_once '../../library/HTMLPurifier.auto.php';
-
-$config = HTMLPurifier_Config::createDefault();
-
-// configuration goes here:
-$config->set('Core', 'Encoding', 'UTF-8'); // replace with your encoding
-$config->set('HTML', 'Doctype', 'XHTML 1.0 Transitional'); // replace with your doctype
-
-$purifier = new HTMLPurifier($config);
-
-// untrusted input HTML
-$html = '<b>Simple and short';
-
-$pure_html = $purifier->purify($html);
-
-echo '<pre>' . htmlspecialchars($pure_html) . '</pre>';
-

lib/htmlpurifier-3.0.0/docs/fixquotes.htc

@@ -1,6 +0,0 @@
-<public:attach event="oncontentready" onevent="init();" />
-<script>
-function init() {
-  element.innerHTML = '&#8220;'+element.innerHTML+'&#8221;';
-}
-</script>

lib/htmlpurifier-3.0.0/docs/index.html

@@ -1,168 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Index to all HTML Purifier documentation." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Documentation - HTML Purifier</title>
-
-</head>
-<body>
-
-<h1>Documentation</h1>
-
-<p><strong><a href="http://htmlpurifier.org/">HTML Purifier</a></strong> has documentation for all types of people.
-Here is an index of all of them.</p>
-
-<h2>End-user</h2>
-<p>End-user documentation that contains articles, tutorials and useful
-information for casual developers using HTML Purifier.</p>
-
-<dl>
-
-<dt><a href="enduser-id.html">IDs</a></dt>
-<dd>Explains various methods for allowing IDs in documents safely.</dd>
-
-<dt><a href="enduser-youtube.html">Embedding YouTube videos</a></dt>
-<dd>Explains how to safely allow the embedding of flash from trusted sites.</dd>
-
-<dt><a href="enduser-slow.html">Speeding up HTML Purifier</a></dt>
-<dd>Explains how to speed up HTML Purifier through caching or inbound filtering.</dd>
-
-<dt><a href="enduser-utf8.html">UTF-8: The Secret of Character Encoding</a></dt>
-<dd>Describes the rationale for using UTF-8, the ramifications otherwise, and how to make the switch.</dd>
-
-<dt><a href="enduser-tidy.html">Tidy</a></dt>
-<dd>Tutorial for tweaking HTML Purifier's Tidy-like behavior.</dd>
-
-<dt><a href="enduser-customize.html">Customize</a></dt>
-<dd>Tutorial for customizing HTML Purifier's tag and attribute sets.</dd>
-
-<dt><a href="enduser-uri-filter.html">URI Filters</a></dt>
-<dd>Tutorial for creating custom URI filters.</dd>
-
-</dl>
-
-<h2>Development</h2>
-<p>Developer documentation detailing code issues, roadmaps and project
-conventions.</p>
-
-<dl>
-
-<dt><a href="dev-progress.html">Implementation Progress</a></dt>
-<dd>Tables detailing HTML element and CSS property implementation coverage.</dd>
-
-<dt><a href="dev-naming.html">Naming Conventions</a></dt>
-<dd>Defines class naming conventions.</dd>
-
-<dt><a href="dev-optimization.html">Optimization</a></dt>
-<dd>Discusses possible methods of optimizing HTML Purifier.</dd>
-
-<dt><a href="dev-advanced-api.html">Advanced API</a></dt>
-<dd>Functional specification for HTML Purifier's advanced API for defining
-custom filtering behavior.</dd>
-
-</dl>
-
-<h2>Proposals</h2>
-<p>Proposed features, as well as the associated rambling to get a clear
-objective in place before attempted implementation.</p>
-
-<dl>
-<dt><a href="proposal-colors.html">Colors</a></dt>
-<dd>Proposal to allow for color constraints.</dd>
-</dl>
-
-<h2>Reference</h2>
-<p>Miscellaneous essays, research pieces and other reference type material
-that may not directly discuss HTML Purifier.</p>
-
-<dl>
-<dt><a href="ref-devnetwork.html">DevNetwork Credits</a></dt>
-<dd>Credits and links to DevNetwork forum topics.</dd>
-</dl>
-
-<h2>Internal memos</h2>
-
-<p>Plaintext documents that are more for use by active developers of
-the code. They may be upgraded to HTML files or stay as TXT scratchpads.</p>
-
-<table class="table">
-
-<thead><tr>
-    <th width="10%">Type</th>
-    <th width="20%">Name</th>
-    <th>Description</th>
-</tr></thead>
-
-<tbody>
-
-<tr>
-    <td>End-user</td>
-    <td><a href="enduser-overview.txt">Overview</a></td>
-    <td>High level overview of the general control flow (mostly obsolete).</td>
-</tr>
-
-<tr>
-    <td>End-user</td>
-    <td><a href="enduser-security.txt">Security</a></td>
-    <td>Common security issues that may still arise (half-baked).</td>
-</tr>
-
-<tr>
-    <td>Development</td>
-    <td><a href="enduser-code-quality.txt">Code Quality Issues</a></td>
-    <td>Enumerates code quality issues and places that need to be refactored.</td>
-</tr>
-
-<tr>
-    <td>Proposal</td>
-    <td><a href="proposal-filter-levels.txt">Filter levels</a></td>
-    <td>Outlines details of projected configurable level of filtering.</td>
-</tr>
-
-<tr>
-    <td>Proposal</td>
-    <td><a href="proposal-language.txt">Language</a></td>
-    <td>Specification of I18N for error messages derived from MediaWiki (half-baked).</td>
-</tr>
-
-<tr>
-    <td>Proposal</td>
-    <td><a href="proposal-new-directives.txt">New directives</a></td>
-    <td>Assorted configuration options that could be implemented.</td>
-</tr>
-
-<tr>
-    <td>Reference</td>
-    <td><a href="ref-content-models.txt">Handling Content Model Changes</a></td>
-    <td>Discusses how to tidy up content model changes using custom ChildDef classes.</td>
-</tr>
-
-<tr>
-    <td>Reference</td>
-    <td><a href="ref-proprietary-tags.txt">Proprietary tags</a></td>
-    <td>List of vendor-specific tags we may want to transform to W3C compliant markup.</td>
-</tr>
-
-<tr>
-    <td>Reference</td>
-    <td><a href="ref-html-modularization.txt">Modularization of HTMLDefinition</a></td>
-    <td>Provides a high-level overview of the concepts behind HTMLModules.</td>
-</tr>
-
-<tr>
-    <td>Reference</td>
-    <td><a href="ref-whatwg.txt">WHATWG</a></td>
-    <td>How WHATWG plays into what we need to do.</td>
-</tr>
-
-</tbody>
-
-</table>
-
-<div id="version">$Id: index.html 1348 2007-08-02 23:34:30Z Edward $</div>
-</body>
-</html>

lib/htmlpurifier-3.0.0/docs/proposal-colors.html

@@ -1,48 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-<meta name="description" content="Proposal to allow for color constraints in HTML Purifier." />
-<link rel="stylesheet" type="text/css" href="./style.css" />
-
-<title>Proposal: Colors - HTML Purifier</title>
-
-</head><body>
-
-<h1 class="subtitled">Colors</h1>
-<div class="subtitle">Hammering some sense into those color-blind newbies</div>
-
-<div id="filing">Filed under Proposals</div>
-<div id="index">Return to the <a href="index.html">index</a>.</div>
-<div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>
-
-<p>Your website probably has a color-scheme.
-<span style="color:#090; background:#FFF;">Green on white</span>,
-<span style="color:#A0F; background:#FF0;">purple on yellow</span>,
-whatever. When you give users the ability to style their content, you may
-want them to keep in line with your styling. If you're website is all
-about light colors, you don't want a user to come in and vandalize your
-page with a deep maroon.</p>
-
-<p>This is an extremely silly feature proposal, but I'm writing it down anyway.</p>
-
-<p>What if the user could constrain the colors specified in inline styles? You
-are only allowed to use these shades of dark green for text and these shades
-of light yellow for the background. At the very least, you could ensure
-that we did not have pale yellow on white text.</p>
-
-<h2>Implementation issues</h2>
-
-<ol>
-<li>Requires the color attribute definition to know, currently, what the text
-and background colors are. This becomes difficult when classes are thrown
-into the mix.</li>
-<li>The user still has to define the permissible colors, how does one do
-something like that?</li>
-</ol>
-
-<div id="version">$Id: proposal-colors.html 992 2007-04-22 22:22:48Z Edward $</div>
-
-</body>
-</html>

lib/htmlpurifier-3.0.0/docs/proposal-config.txt

@@ -1,21 +0,0 @@
-
-Configuration
-
-Configuration is documented on a per-use case: if a class uses a certain
-value from the configuration object, it has to define its name and what the
-value is used for.  This means decentralized configuration declarations that
-are nevertheless error checking and a centralized configuration object.
-
-Directives are divided into namespaces, indicating the major portion of
-functionality they cover (although there may be overlaps).  Please consult
-the documentation in ConfigDef for more information on these namespaces.
-
-Since configuration is dependant on context, internal classes require a
-configuration object to be passed as a parameter.  (They also require a
-Context object). A majority of classes do not need the config object,
-but for those who do, it is a lifesaver.
-
-Definition objects are complex datatypes influenced by their respective
-directive namespaces (HTMLDefinition with HTML and CSSDefinition with CSS).
-If any of these directives is updated, HTML Purifier forces the definition
-to be regenerated.

lib/htmlpurifier-3.0.0/docs/proposal-filter-levels.txt

@@ -1,135 +0,0 @@
-
-Filter Levels
-    When one size *does not* fit all
-
-It makes little sense to constrain users to one set of HTML elements and
-attributes and tell them that they are not allowed to mold this in
-any fashion.  Many users demand to be able to custom-select which elements
-and attributes they want.  This is fine: because HTML Purifier keeps close
-track of what elements are safe to use, there is no way for them to
-accidently allow an XSS-able tag.
-
-However, combing through the HTML spec to make your own whitelist can
-be a daunting task.  HTML Purifier ought to offer pre-canned filter levels
-that amateur users can select based on what they think is their use-case.
-
-Here are some fuzzy levels you could set:
-
-1. Comments - Wordpress recommends a, abbr, acronym, b, blockquote, cite,
-    code, em, i, strike, strong; however, you could get away with only a, em and
-    p; also having blockquote and pre tags would be helpful.
-2. BBCode - Emulate the usual tagset for forums: b, i, img, a, blockquote,
-    pre, div, span and h[2-6] (the last three are for specially formatted
-    posts, div and span require associated classes or inline styling enabled
-    to be useful)
-3. Pages - As permissive as possible without allowing XSS.  No protection
-    against bad design sense, unfortunantely.  Suitable for wiki and page
-    environments. (probably what we have now)
-4. Lint - Accept everything in the spec, a Tidy wannabe. (This probably won't
-    get implemented as it would require routines for things like <object>
-    and friends to be implemented, which is a lot of work for not a lot of
-    benefit)
-
-One final note: when you start axing tags that are more commonly used, you
-run the risk of accidentally destroying user data, especially if the data
-is incoming from a WYSIWYG editor that hasn't been synced accordingly. This may
-make forbidden element to text transformations desirable (for example, images).
-
-
-
-== Element Risk Analysis ==
-
-Although none of the currently supported elements presents a security
-threat per-say, some can cause problems for page layouts or be
-extremely complicated.
-
-Legend:
-    [danger level] - regular tags / uncommon tags ~ deprecated tags
-    [danger level]* - rare tags
-
-1 - blockquote, code, em, i, p, tt / strong, sub, sup
-1* - abbr, acronym, bdo, cite, dfn, kbd, q, samp
-2 - b, br, del, div, pre, span / ins, s, strike ~ u
-3 - h2, h3, h4, h5, h6 ~ center
-4 - h1, big ~ font
-5 - a
-7 - area, map
-
-These are special use tags, they should be enabled on a blanket basis.
-
-Lists - dd, dl, dt, li, ol, ul ~ menu, dir
-Tables - caption, table, td, th, tr / col, colgroup, tbody, tfoot, thead
-
-Forms - fieldset, form, input, lable, legend, optgroup, option, select, textarea
-XSS - noscript, object, script ~ applet
-Meta - base, basefont, body, head, html, link, meta, style, title
-Frames - frame, frameset, iframe
-
-And tag specific notes:
-
-a   - general problems involving linkspam
-b   - too much bold is bad, typographically speaking bold is discouraged
-br  - often misused
-center - CSS, usually no legit use
-del - only useful in editing context
-div - little meaning in certain contexts i.e. blog comment
-h1  - usually no legit use, as header is already set by application
-h*  - not needed in blog comments
-hr  - usually not necessary in blog comments
-img - could be extremely undesirable if linking to external pics (CSRF, goatse)
-pre - could use formatting, only useful in code contexts
-q   - very little support
-s   - transform into span with styling or del?
-small - technically presentational
-span - depends on attribute allowances
-sub, sup - specialized
-u   - little legit use, prefer class with text-decoration
-
-Based on the riskiness of the items, we may want to offer %HTML.DisableImages
-attribute and put URI filtering higher up on the priority list.
-
-
-== Attribute Risk Analysis ==
-
-We actually have a suprisingly small assortment of allowed attributes (the
-rest are deprecated in strict, and thus we opted not to allow them, even
-though our output is XHTML Transitional by default.)
-
-Required URI - img.alt, img.src, a.href
-Medium risk - *.class, *.dir
-High risk - img.height, img.width, *.id, *.style
-
-Table - colgroup/col.span, td/th.rowspan, td/th.colspan
-Uncommon - *.title, *.lang, *.xml:lang
-Rare - td/th.abbr, table.summary, {table}.charoff
-Rare URI - del.cite, ins.cite, blockquote.cite, q.cite, img.longdesc
-Presentational - {table}.align, {table}.valign, table.frame, table.rules,
-    table.border
-Partially presentational - table.cellpadding, table.cellspacing,
-    table.width, col.width, colgroup.width
-
-
-== CSS Risk Analysis ==
-
-Currently, there is no support for fine-grained "allowed CSS" specification,
-mainly because I'm lazy, partially because no one has asked for it. However,
-this will be added eventually.
-
-There are certain CSS elements that are extremely useful inline, but then
-as you get to more presentation oriented styling it may not always be
-appropriate to inline them.
-
-Useful - clear, float, border-collapse, caption-side
-
-These CSS properties can break layouts if used improperly. We have excluded
-any CSS properties that are not currently implemented (such as position).
-
-Dangerous, can go outside container - float
-Easy to abuse - font-size, font-family (font), width
-Colored - background-color (background), border-color (border), color
-    (see proposal-colors.html)
-Dramatic - border, list-style-position (list-style), margin, padding,
-    text-align, text-indent, text-transform, vertical-align, line-height
-
-Dramatic elements substantially change the look of text in ways that should
-probably have been reserved to other areas.

lib/htmlpurifier-3.0.0/docs/proposal-language.txt

@@ -1,62 +0,0 @@
-We are going to model our I18N/L10N off of MediaWiki's system.  Their's is
-obviously quite complicated, so we're going to simplify it a bit for our needs.
-
-== Caching ==
-
-MediaWiki has lots of caching mechanisms built in, which make the code somewhat
-more difficult to understand.  Before doing any loading, MediaWiki will check
-the following places to see if we can be lazy:
-
-1. $mLocalisationCache[$code] -  just a variable where it may have been stashed
-2. serialized/$code.ser -  compiled serialized language file
-3. Memcached version of file (with expiration checking)
-
-Expiration checking consists of by ensuring all dependencies have filemtime
-that match the ones bundled with the cached copy. Similar checking could be
-implemented for serialized versions, as it seems that they are not updated
-until manually recompiled.
-
-== Behavior ==
-
-Things that are localizable:
-
--  Weekdays (and abbrev)
--  Months (and abbrev)
--  Bookstores
--  Skin names
--  Date preferences / Custom date format
--  Default date format
--  Default user option overrides
--+ Language names
--  Timezones
--+ Character encoding conversion via iconv
--  UpperLowerCase first (needs casemaps for some)
--  UpperLowerCase
--  Uppercase words
--  Uppercase word breaks
--  Case folding
--  Strip punctuation for MySQL search
--  Get first character
--+ Alternate encoding
--+ Recoding for edit (and then recode input)
--+ RTL
--+ Direction mark character depending on RTL
--? Arrow depending on RTL
--  Languages where italics cannot be used
--+ Number formatting (commafy, transform digits, transform separators)
--  Truncate (multibyte)
--  Grammar conversions for inflected languages
--  Plural transformations
--  Formatting expiry times
--  Segmenting for diffs (Chinese)
--  Convert to variants of language
--  Language specific user preference options
--  Link trails [[foo]]bar
--+ Language code (RFC 3066)
-
-Neat functionality:
-
--  I18N sprintfDate
--  Roman numeral formatting
-
-Items marked with a + likely need to be addressed by HTML Purifier