summaryrefslogtreecommitdiff
path: root/lib/htmlpurifier/library/HTMLPurifier/ChildDef/Table.php
diff options
context:
space:
mode:
Diffstat (limited to 'lib/htmlpurifier/library/HTMLPurifier/ChildDef/Table.php')
-rw-r--r--lib/htmlpurifier/library/HTMLPurifier/ChildDef/Table.php227
1 files changed, 0 insertions, 227 deletions
diff --git a/lib/htmlpurifier/library/HTMLPurifier/ChildDef/Table.php b/lib/htmlpurifier/library/HTMLPurifier/ChildDef/Table.php
deleted file mode 100644
index 9a93421a1..000000000
--- a/lib/htmlpurifier/library/HTMLPurifier/ChildDef/Table.php
+++ /dev/null
@@ -1,227 +0,0 @@
-<?php
-
-/**
- * Definition for tables. The general idea is to extract out all of the
- * essential bits, and then reconstruct it later.
- *
- * This is a bit confusing, because the DTDs and the W3C
- * validators seem to disagree on the appropriate definition. The
- * DTD claims:
- *
- * (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)
- *
- * But actually, the HTML4 spec then has this to say:
- *
- * The TBODY start tag is always required except when the table
- * contains only one table body and no table head or foot sections.
- * The TBODY end tag may always be safely omitted.
- *
- * So the DTD is kind of wrong. The validator is, unfortunately, kind
- * of on crack.
- *
- * The definition changed again in XHTML1.1; and in my opinion, this
- * formulation makes the most sense.
- *
- * caption?, ( col* | colgroup* ), (( thead?, tfoot?, tbody+ ) | ( tr+ ))
- *
- * Essentially, we have two modes: thead/tfoot/tbody mode, and tr mode.
- * If we encounter a thead, tfoot or tbody, we are placed in the former
- * mode, and we *must* wrap any stray tr segments with a tbody. But if
- * we don't run into any of them, just have tr tags is OK.
- */
-class HTMLPurifier_ChildDef_Table extends HTMLPurifier_ChildDef
-{
- public $allow_empty = false;
- public $type = 'table';
- public $elements = array('tr' => true, 'tbody' => true, 'thead' => true,
- 'tfoot' => true, 'caption' => true, 'colgroup' => true, 'col' => true);
- public function __construct() {}
- public function validateChildren($tokens_of_children, $config, $context) {
- if (empty($tokens_of_children)) return false;
-
- // this ensures that the loop gets run one last time before closing
- // up. It's a little bit of a hack, but it works! Just make sure you
- // get rid of the token later.
- $tokens_of_children[] = false;
-
- // only one of these elements is allowed in a table
- $caption = false;
- $thead = false;
- $tfoot = false;
-
- // as many of these as you want
- $cols = array();
- $content = array();
-
- $nesting = 0; // current depth so we can determine nodes
- $is_collecting = false; // are we globbing together tokens to package
- // into one of the collectors?
- $collection = array(); // collected nodes
- $tag_index = 0; // the first node might be whitespace,
- // so this tells us where the start tag is
- $tbody_mode = false; // if true, then we need to wrap any stray
- // <tr>s with a <tbody>.
-
- foreach ($tokens_of_children as $token) {
- $is_child = ($nesting == 0);
-
- if ($token === false) {
- // terminating sequence started
- } elseif ($token instanceof HTMLPurifier_Token_Start) {
- $nesting++;
- } elseif ($token instanceof HTMLPurifier_Token_End) {
- $nesting--;
- }
-
- // handle node collection
- if ($is_collecting) {
- if ($is_child) {
- // okay, let's stash the tokens away
- // first token tells us the type of the collection
- switch ($collection[$tag_index]->name) {
- case 'tbody':
- $tbody_mode = true;
- case 'tr':
- $content[] = $collection;
- break;
- case 'caption':
- if ($caption !== false) break;
- $caption = $collection;
- break;
- case 'thead':
- case 'tfoot':
- $tbody_mode = true;
- // XXX This breaks rendering properties with
- // Firefox, which never floats a <thead> to
- // the top. Ever. (Our scheme will float the
- // first <thead> to the top.) So maybe
- // <thead>s that are not first should be
- // turned into <tbody>? Very tricky, indeed.
-
- // access the appropriate variable, $thead or $tfoot
- $var = $collection[$tag_index]->name;
- if ($$var === false) {
- $$var = $collection;
- } else {
- // Oops, there's a second one! What
- // should we do? Current behavior is to
- // transmutate the first and last entries into
- // tbody tags, and then put into content.
- // Maybe a better idea is to *attach
- // it* to the existing thead or tfoot?
- // We don't do this, because Firefox
- // doesn't float an extra tfoot to the
- // bottom like it does for the first one.
- $collection[$tag_index]->name = 'tbody';
- $collection[count($collection)-1]->name = 'tbody';
- $content[] = $collection;
- }
- break;
- case 'colgroup':
- $cols[] = $collection;
- break;
- }
- $collection = array();
- $is_collecting = false;
- $tag_index = 0;
- } else {
- // add the node to the collection
- $collection[] = $token;
- }
- }
-
- // terminate
- if ($token === false) break;
-
- if ($is_child) {
- // determine what we're dealing with
- if ($token->name == 'col') {
- // the only empty tag in the possie, we can handle it
- // immediately
- $cols[] = array_merge($collection, array($token));
- $collection = array();
- $tag_index = 0;
- continue;
- }
- switch($token->name) {
- case 'caption':
- case 'colgroup':
- case 'thead':
- case 'tfoot':
- case 'tbody':
- case 'tr':
- $is_collecting = true;
- $collection[] = $token;
- continue;
- default:
- if (!empty($token->is_whitespace)) {
- $collection[] = $token;
- $tag_index++;
- }
- continue;
- }
- }
- }
-
- if (empty($content)) return false;
-
- $ret = array();
- if ($caption !== false) $ret = array_merge($ret, $caption);
- if ($cols !== false) foreach ($cols as $token_array) $ret = array_merge($ret, $token_array);
- if ($thead !== false) $ret = array_merge($ret, $thead);
- if ($tfoot !== false) $ret = array_merge($ret, $tfoot);
-
- if ($tbody_mode) {
- // a little tricky, since the start of the collection may be
- // whitespace
- $inside_tbody = false;
- foreach ($content as $token_array) {
- // find the starting token
- foreach ($token_array as $t) {
- if ($t->name === 'tr' || $t->name === 'tbody') {
- break;
- }
- } // iterator variable carries over
- if ($t->name === 'tr') {
- if ($inside_tbody) {
- $ret = array_merge($ret, $token_array);
- } else {
- $ret[] = new HTMLPurifier_Token_Start('tbody');
- $ret = array_merge($ret, $token_array);
- $inside_tbody = true;
- }
- } elseif ($t->name === 'tbody') {
- if ($inside_tbody) {
- $ret[] = new HTMLPurifier_Token_End('tbody');
- $inside_tbody = false;
- $ret = array_merge($ret, $token_array);
- } else {
- $ret = array_merge($ret, $token_array);
- }
- } else {
- trigger_error("tr/tbody in content invariant failed in Table ChildDef", E_USER_ERROR);
- }
- }
- if ($inside_tbody) {
- $ret[] = new HTMLPurifier_Token_End('tbody');
- }
- } else {
- foreach ($content as $token_array) {
- // invariant: everything in here is <tr>s
- $ret = array_merge($ret, $token_array);
- }
- }
-
- if (!empty($collection) && $is_collecting == false){
- // grab the trailing space
- $ret = array_merge($ret, $collection);
- }
-
- array_pop($tokens_of_children); // remove phantom token
-
- return ($ret === $tokens_of_children) ? true : $ret;
-
- }
-}
-
-// vim: et sw=4 sts=4
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 17:59:58 +0000