2 /***************************************************************************
5 * begin : Saturday, Feb 13, 2001
6 * copyright : (C) 2001 The phpBB Group
7 * email : support@phpbb.com
9 * $Id: bbcode.php,v 1.36.2.32 2004/07/11 16:46:19 acydburn Exp $
11 ***************************************************************************/
13 /***************************************************************************
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 ***************************************************************************/
22 if ( !defined('IN_PHPBB') )
24 die("Hacking attempt");
27 define("BBCODE_UID_LEN", 10);
29 // global that holds loaded-and-prepared bbcode templates, so we only have to do
35 * Loads bbcode templates from the bbcode.tpl file of the current template set.
36 * Creates an array, keys are bbcode names like "b_open" or "url", values
37 * are the associated template.
38 * Probably pukes all over the place if there's something really screwed
39 * with the bbcode.tpl file.
41 * Nathan Codding, Sept 26 2001.
43 function load_bbcode_template()
46 $tpl_filename = $template->make_filename('bbcode.tpl');
47 $tpl = fread(fopen($tpl_filename, 'r'), filesize($tpl_filename));
49 // replace \ with \\ and then ' with \'.
50 $tpl = str_replace('\\', '\\\\', $tpl);
51 $tpl = str_replace('\'', '\\\'', $tpl);
54 $tpl = str_replace("\n", '', $tpl);
56 // Turn template blocks into PHP assignment statements for the values of $bbcode_tpls..
57 $tpl = preg_replace('#<!-- BEGIN (.*?) -->(.*?)<!-- END (.*?) -->#', "\n" . '$bbcode_tpls[\'\\1\'] = \'\\2\';', $tpl);
59 $bbcode_tpls = array();
68 * Prepares the loaded bbcode templates for insertion into preg_replace()
69 * or str_replace() calls in the bbencode_second_pass functions. This
70 * means replacing template placeholders with the appropriate preg backrefs
71 * or with language vars. NOTE: If you change how the regexps work in
72 * bbencode_second_pass(), you MUST change this function.
74 * Nathan Codding, Sept 26 2001
77 function prepare_bbcode_template($bbcode_tpl)
81 $bbcode_tpl['olist_open'] = str_replace('{LIST_TYPE}', '\\1', $bbcode_tpl['olist_open']);
83 $bbcode_tpl['color_open'] = str_replace('{COLOR}', '\\1', $bbcode_tpl['color_open']);
85 $bbcode_tpl['size_open'] = str_replace('{SIZE}', '\\1', $bbcode_tpl['size_open']);
87 $bbcode_tpl['quote_open'] = str_replace('{L_QUOTE}', $lang['Quote'], $bbcode_tpl['quote_open']);
89 $bbcode_tpl['quote_username_open'] = str_replace('{L_QUOTE}', $lang['Quote'], $bbcode_tpl['quote_username_open']);
90 $bbcode_tpl['quote_username_open'] = str_replace('{L_WROTE}', $lang['wrote'], $bbcode_tpl['quote_username_open']);
91 $bbcode_tpl['quote_username_open'] = str_replace('{USERNAME}', '\\1', $bbcode_tpl['quote_username_open']);
93 $bbcode_tpl['code_open'] = str_replace('{L_CODE}', $lang['Code'], $bbcode_tpl['code_open']);
95 $bbcode_tpl['img'] = str_replace('{URL}', '\\1', $bbcode_tpl['img']);
97 // We do URLs in several different ways..
98 $bbcode_tpl['url1'] = str_replace('{URL}', '\\1', $bbcode_tpl['url']);
99 $bbcode_tpl['url1'] = str_replace('{DESCRIPTION}', '\\1', $bbcode_tpl['url1']);
101 $bbcode_tpl['url2'] = str_replace('{URL}', 'http://\\1', $bbcode_tpl['url']);
102 $bbcode_tpl['url2'] = str_replace('{DESCRIPTION}', '\\1', $bbcode_tpl['url2']);
104 $bbcode_tpl['url3'] = str_replace('{URL}', '\\1', $bbcode_tpl['url']);
105 $bbcode_tpl['url3'] = str_replace('{DESCRIPTION}', '\\2', $bbcode_tpl['url3']);
107 $bbcode_tpl['url4'] = str_replace('{URL}', 'http://\\1', $bbcode_tpl['url']);
108 $bbcode_tpl['url4'] = str_replace('{DESCRIPTION}', '\\3', $bbcode_tpl['url4']);
110 $bbcode_tpl['email'] = str_replace('{EMAIL}', '\\1', $bbcode_tpl['email']);
112 define("BBCODE_TPL_READY", true);
119 * Does second-pass bbencoding. This should be used before displaying the message in
120 * a thread. Assumes the message is already first-pass encoded, and we are given the
121 * correct UID as used in first-pass encoding.
123 function bbencode_second_pass($text, $uid)
125 global $lang, $bbcode_tpl;
127 // pad it with a space so we can distinguish between FALSE and matching the 1st char (index 0).
128 // This is important; bbencode_quote(), bbencode_list(), and bbencode_code() all depend on it.
131 // First: If there isn't a "[" and a "]" in the message, don't bother.
132 if (! (strpos($text, "[") && strpos($text, "]")) )
134 // Remove padding, return.
135 $text = substr($text, 1);
139 // Only load the templates ONCE..
140 if (!defined("BBCODE_TPL_READY"))
142 // load templates from file into array.
143 $bbcode_tpl = load_bbcode_template();
145 // prepare array for use in regexps.
146 $bbcode_tpl = prepare_bbcode_template($bbcode_tpl);
149 // [CODE] and [/CODE] for posting code (HTML, PHP, C etc etc) in your posts.
150 $text = bbencode_second_pass_code($text, $uid, $bbcode_tpl);
152 // [QUOTE] and [/QUOTE] for posting replies with quote, or just for quoting stuff.
153 $text = str_replace("[quote:$uid]", $bbcode_tpl['quote_open'], $text);
154 $text = str_replace("[/quote:$uid]", $bbcode_tpl['quote_close'], $text);
156 // New one liner to deal with opening quotes with usernames...
157 // replaces the two line version that I had here before..
158 $text = preg_replace("/\[quote:$uid=\"(.*?)\"\]/si", $bbcode_tpl['quote_username_open'], $text);
160 // [list] and [list=x] for (un)ordered lists.
162 $text = str_replace("[list:$uid]", $bbcode_tpl['ulist_open'], $text);
164 $text = str_replace("[*:$uid]", $bbcode_tpl['listitem'], $text);
166 $text = str_replace("[/list:u:$uid]", $bbcode_tpl['ulist_close'], $text);
167 $text = str_replace("[/list:o:$uid]", $bbcode_tpl['olist_close'], $text);
169 $text = preg_replace("/\[list=([a1]):$uid\]/si", $bbcode_tpl['olist_open'], $text);
172 $text = preg_replace("/\[color=(\#[0-9A-F]{6}|[a-z]+):$uid\]/si", $bbcode_tpl['color_open'], $text);
173 $text = str_replace("[/color:$uid]", $bbcode_tpl['color_close'], $text);
176 $text = preg_replace("/\[size=([1-2]?[0-9]):$uid\]/si", $bbcode_tpl['size_open'], $text);
177 $text = str_replace("[/size:$uid]", $bbcode_tpl['size_close'], $text);
179 // [b] and [/b] for bolding text.
180 $text = str_replace("[b:$uid]", $bbcode_tpl['b_open'], $text);
181 $text = str_replace("[/b:$uid]", $bbcode_tpl['b_close'], $text);
183 // [u] and [/u] for underlining text.
184 $text = str_replace("[u:$uid]", $bbcode_tpl['u_open'], $text);
185 $text = str_replace("[/u:$uid]", $bbcode_tpl['u_close'], $text);
187 // [i] and [/i] for italicizing text.
188 $text = str_replace("[i:$uid]", $bbcode_tpl['i_open'], $text);
189 $text = str_replace("[/i:$uid]", $bbcode_tpl['i_close'], $text);
191 // Patterns and replacements for URL and email tags..
193 $replacements = array();
195 // [img]image_url_here[/img] code..
196 // This one gets first-passed..
197 $patterns[] = "#\[img:$uid\](.*?)\[/img:$uid\]#si";
198 $replacements[] = $bbcode_tpl['img'];
200 // matches a [url]xxxx://www.phpbb.com[/url] code..
201 $patterns[] = "#\[url\]([\w]+?://[^ \"\n\r\t<]*?)\[/url\]#is";
202 $replacements[] = $bbcode_tpl['url1'];
204 // [url]www.phpbb.com[/url] code.. (no xxxx:// prefix).
205 $patterns[] = "#\[url\]((www|ftp)\.[^ \"\n\r\t<]*?)\[/url\]#is";
206 $replacements[] = $bbcode_tpl['url2'];
208 // [url=xxxx://www.phpbb.com]phpBB[/url] code..
209 $patterns[] = "#\[url=([\w]+?://[^ \"\n\r\t<]*?)\](.*?)\[/url\]#is";
210 $replacements[] = $bbcode_tpl['url3'];
212 // [url=www.phpbb.com]phpBB[/url] code.. (no xxxx:// prefix).
213 $patterns[] = "#\[url=((www|ftp)\.[^ \"\n\r\t<]*?)\](.*?)\[/url\]#is";
214 $replacements[] = $bbcode_tpl['url4'];
216 // [email]user@domain.tld[/email] code..
217 $patterns[] = "#\[email\]([a-z0-9&\-_.]+?@[\w\-]+\.([\w\-\.]+\.)?[\w]+)\[/email\]#si";
218 $replacements[] = $bbcode_tpl['email'];
220 $text = preg_replace($patterns, $replacements, $text);
222 // Remove our padding from the string..
223 $text = substr($text, 1);
227 } // bbencode_second_pass()
229 // Need to initialize the random numbers only ONCE
230 mt_srand( (double) microtime() * 1000000);
232 function make_bbcode_uid()
234 // Unique ID for this message..
236 $uid = md5(mt_rand());
237 $uid = substr($uid, 0, BBCODE_UID_LEN);
242 function bbencode_first_pass($text, $uid)
244 // pad it with a space so we can distinguish between FALSE and matching the 1st char (index 0).
245 // This is important; bbencode_quote(), bbencode_list(), and bbencode_code() all depend on it.
248 // [CODE] and [/CODE] for posting code (HTML, PHP, C etc etc) in your posts.
249 $text = bbencode_first_pass_pda($text, $uid, '[code]', '[/code]', '', true, '');
251 // [QUOTE] and [/QUOTE] for posting replies with quote, or just for quoting stuff.
252 $text = bbencode_first_pass_pda($text, $uid, '[quote]', '[/quote]', '', false, '');
253 $text = bbencode_first_pass_pda($text, $uid, '/\[quote=(\\\".*?\\\")\]/is', '[/quote]', '', false, '', "[quote:$uid=\\1]");
255 // [list] and [list=x] for (un)ordered lists.
257 $open_tag[0] = "[list]";
260 $text = bbencode_first_pass_pda($text, $uid, $open_tag, "[/list]", "[/list:u]", false, 'replace_listitems');
262 $open_tag[0] = "[list=1]";
263 $open_tag[1] = "[list=a]";
266 $text = bbencode_first_pass_pda($text, $uid, $open_tag, "[/list]", "[/list:o]", false, 'replace_listitems');
268 // [color] and [/color] for setting text color
269 $text = preg_replace("#\[color=(\#[0-9A-F]{6}|[a-z\-]+)\](.*?)\[/color\]#si", "[color=\\1:$uid]\\2[/color:$uid]", $text);
271 // [size] and [/size] for setting text size
272 $text = preg_replace("#\[size=([1-2]?[0-9])\](.*?)\[/size\]#si", "[size=\\1:$uid]\\2[/size:$uid]", $text);
274 // [b] and [/b] for bolding text.
275 $text = preg_replace("#\[b\](.*?)\[/b\]#si", "[b:$uid]\\1[/b:$uid]", $text);
277 // [u] and [/u] for underlining text.
278 $text = preg_replace("#\[u\](.*?)\[/u\]#si", "[u:$uid]\\1[/u:$uid]", $text);
280 // [i] and [/i] for italicizing text.
281 $text = preg_replace("#\[i\](.*?)\[/i\]#si", "[i:$uid]\\1[/i:$uid]", $text);
283 // [img]image_url_here[/img] code..
284 $text = preg_replace("#\[img\]((http|ftp|https|ftps)://)([^ \?&=\#\"\n\r\t<]*?(\.(jpg|jpeg|gif|png)))\[/img\]#sie", "'[img:$uid]\\1' . str_replace(' ', '%20', '\\3') . '[/img:$uid]'", $text);
286 // Remove our padding from the string..
287 return substr($text, 1);;
289 } // bbencode_first_pass()
292 * $text - The text to operate on.
293 * $uid - The UID to add to matching tags.
294 * $open_tag - The opening tag to match. Can be an array of opening tags.
295 * $close_tag - The closing tag to match.
296 * $close_tag_new - The closing tag to replace with.
297 * $mark_lowest_level - boolean - should we specially mark the tags that occur
298 * at the lowest level of nesting? (useful for [code], because
299 * we need to match these tags first and transform HTML tags
300 * in their contents..
301 * $func - This variable should contain a string that is the name of a function.
302 * That function will be called when a match is found, and passed 2
303 * parameters: ($text, $uid). The function should return a string.
304 * This is used when some transformation needs to be applied to the
305 * text INSIDE a pair of matching tags. If this variable is FALSE or the
306 * empty string, it will not be executed.
307 * If open_tag is an array, then the pda will try to match pairs consisting of
308 * any element of open_tag followed by close_tag. This allows us to match things
309 * like [list=A]...[/list] and [list=1]...[/list] in one pass of the PDA.
311 * NOTES: - this function assumes the first character of $text is a space.
312 * - every opening tag and closing tag must be of the [...] format.
314 function bbencode_first_pass_pda($text, $uid, $open_tag, $close_tag, $close_tag_new, $mark_lowest_level, $func, $open_regexp_replace = false)
318 if (!$close_tag_new || ($close_tag_new == ''))
320 $close_tag_new = $close_tag;
323 $close_tag_length = strlen($close_tag);
324 $close_tag_new_length = strlen($close_tag_new);
325 $uid_length = strlen($uid);
327 $use_function_pointer = ($func && ($func != ''));
331 if (is_array($open_tag))
333 if (0 == count($open_tag))
335 // No opening tags to match, so return.
338 $open_tag_count = count($open_tag);
342 // only one opening tag. make it into a 1-element array.
343 $open_tag_temp = $open_tag;
345 $open_tag[0] = $open_tag_temp;
349 $open_is_regexp = false;
351 if ($open_regexp_replace)
353 $open_is_regexp = true;
354 if (!is_array($open_regexp_replace))
356 $open_regexp_temp = $open_regexp_replace;
357 $open_regexp_replace = array();
358 $open_regexp_replace[0] = $open_regexp_temp;
362 if ($mark_lowest_level && $open_is_regexp)
364 message_die(GENERAL_ERROR, "Unsupported operation for bbcode_first_pass_pda().");
367 // Start at the 2nd char of the string, looking for opening tags.
369 while ($curr_pos && ($curr_pos < strlen($text)))
371 $curr_pos = strpos($text, "[", $curr_pos);
373 // If not found, $curr_pos will be 0, and the loop will end.
376 // We found a [. It starts at $curr_pos.
377 // check if it's a starting or ending tag.
378 $found_start = false;
379 $which_start_tag = "";
380 $start_tag_index = -1;
382 for ($i = 0; $i < $open_tag_count; $i++)
384 // Grab everything until the first "]"...
385 $possible_start = substr($text, $curr_pos, strpos($text, ']', $curr_pos + 1) - $curr_pos + 1);
388 // We're going to try and catch usernames with "[' characters.
390 if( preg_match('#\[quote=\\\"#si', $possible_start, $match) && !preg_match('#\[quote=\\\"(.*?)\\\"\]#si', $possible_start) )
392 // OK we are in a quote tag that probably contains a ] bracket.
393 // Grab a bit more of the string to hopefully get all of it..
394 if ($close_pos = strpos($text, '"]', $curr_pos + 9))
396 if (strpos(substr($text, $curr_pos + 9, $close_pos - ($curr_pos + 9)), '[quote') === false)
398 $possible_start = substr($text, $curr_pos, $close_pos - $curr_pos + 2);
403 // Now compare, either using regexp or not.
406 $match_result = array();
407 if (preg_match($open_tag[$i], $possible_start, $match_result))
410 $which_start_tag = $match_result[0];
411 $start_tag_index = $i;
417 // straightforward string comparison.
418 if (0 == strcasecmp($open_tag[$i], $possible_start))
421 $which_start_tag = $open_tag[$i];
422 $start_tag_index = $i;
430 // We have an opening tag.
431 // Push its position, the text we matched, and its index in the open_tag array on to the stack, and then keep going to the right.
432 $match = array("pos" => $curr_pos, "tag" => $which_start_tag, "index" => $start_tag_index);
433 bbcode_array_push($stack, $match);
435 // Rather than just increment $curr_pos
436 // Set it to the ending of the tag we just found
437 // Keeps error in nested tag from breaking out
438 // of table structure..
440 $curr_pos += strlen($possible_start);
444 // check for a closing tag..
445 $possible_end = substr($text, $curr_pos, $close_tag_length);
446 if (0 == strcasecmp($close_tag, $possible_end))
448 // We have an ending tag.
449 // Check if we've already found a matching starting tag.
450 if (sizeof($stack) > 0)
452 // There exists a starting tag.
453 $curr_nesting_depth = sizeof($stack);
454 // We need to do 2 replacements now.
455 $match = bbcode_array_pop($stack);
456 $start_index = $match['pos'];
457 $start_tag = $match['tag'];
458 $start_length = strlen($start_tag);
459 $start_tag_index = $match['index'];
463 $start_tag = preg_replace($open_tag[$start_tag_index], $open_regexp_replace[$start_tag_index], $start_tag);
466 // everything before the opening tag.
467 $before_start_tag = substr($text, 0, $start_index);
469 // everything after the opening tag, but before the closing tag.
470 $between_tags = substr($text, $start_index + $start_length, $curr_pos - $start_index - $start_length);
472 // Run the given function on the text between the tags..
473 if ($use_function_pointer)
475 $between_tags = $func($between_tags, $uid);
478 // everything after the closing tag.
479 $after_end_tag = substr($text, $curr_pos + $close_tag_length);
481 // Mark the lowest nesting level if needed.
482 if ($mark_lowest_level && ($curr_nesting_depth == 1))
484 if ($open_tag[0] == '[code]')
486 $code_entities_match = array('#<#', '#>#', '#"#', '#:#', '#\[#', '#\]#', '#\(#', '#\)#', '#\{#', '#\}#');
487 $code_entities_replace = array('<', '>', '"', ':', '[', ']', '(', ')', '{', '}');
488 $between_tags = preg_replace($code_entities_match, $code_entities_replace, $between_tags);
490 $text = $before_start_tag . substr($start_tag, 0, $start_length - 1) . ":$curr_nesting_depth:$uid]";
491 $text .= $between_tags . substr($close_tag_new, 0, $close_tag_new_length - 1) . ":$curr_nesting_depth:$uid]";
495 if ($open_tag[0] == '[code]')
497 $text = $before_start_tag . '[code]';
498 $text .= $between_tags . '[/code]';
504 $text = $before_start_tag . $start_tag;
508 $text = $before_start_tag . substr($start_tag, 0, $start_length - 1) . ":$uid]";
510 $text .= $between_tags . substr($close_tag_new, 0, $close_tag_new_length - 1) . ":$uid]";
514 $text .= $after_end_tag;
516 // Now.. we've screwed up the indices by changing the length of the string.
517 // So, if there's anything in the stack, we want to resume searching just after it.
518 // otherwise, we go back to the start.
519 if (sizeof($stack) > 0)
521 $match = bbcode_array_pop($stack);
522 $curr_pos = $match['pos'];
523 // bbcode_array_push($stack, $match);
533 // No matching start tag found. Increment pos, keep going.
539 // No starting tag or ending tag.. Increment pos, keep looping.,
548 } // bbencode_first_pass_pda()
551 * Does second-pass bbencoding of the [code] tags. This includes
552 * running htmlspecialchars() over the text contained between
553 * any pair of [code] tags that are at the first level of
554 * nesting. Tags at the first level of nesting are indicated
555 * by this format: [code:1:$uid] ... [/code:1:$uid]
556 * Other tags are in this format: [code:$uid] ... [/code:$uid]
558 function bbencode_second_pass_code($text, $uid, $bbcode_tpl)
562 $code_start_html = $bbcode_tpl['code_open'];
563 $code_end_html = $bbcode_tpl['code_close'];
565 // First, do all the 1st-level matches. These need an htmlspecialchars() run,
566 // so they have to be handled differently.
567 $match_count = preg_match_all("#\[code:1:$uid\](.*?)\[/code:1:$uid\]#si", $text, $matches);
569 for ($i = 0; $i < $match_count; $i++)
571 $before_replace = $matches[1][$i];
572 $after_replace = $matches[1][$i];
574 // Replace 2 spaces with " " so non-tabbed code indents without making huge long lines.
575 $after_replace = str_replace(" ", " ", $after_replace);
576 // now Replace 2 spaces with " " to catch odd #s of spaces.
577 $after_replace = str_replace(" ", " ", $after_replace);
579 // Replace tabs with " " so tabbed code indents sorta right without making huge long lines.
580 $after_replace = str_replace("\t", " ", $after_replace);
582 // now Replace space occurring at the beginning of a line
583 $after_replace = preg_replace("/^ {1}/m", ' ', $after_replace);
585 $str_to_match = "[code:1:$uid]" . $before_replace . "[/code:1:$uid]";
587 $replacement = $code_start_html;
588 $replacement .= $after_replace;
589 $replacement .= $code_end_html;
591 $text = str_replace($str_to_match, $replacement, $text);
594 // Now, do all the non-first-level matches. These are simple.
595 $text = str_replace("[code:$uid]", $code_start_html, $text);
596 $text = str_replace("[/code:$uid]", $code_end_html, $text);
600 } // bbencode_second_pass_code()
603 * Rewritten by Nathan Codding - Feb 6, 2001.
604 * - Goes through the given string, and replaces xxxx://yyyy with an HTML <a> tag linking
606 * - Goes through the given string, and replaces www.xxxx.yyyy[zzzz] with an HTML <a> tag linking
607 * to http://www.xxxx.yyyy[/zzzz]
608 * - Goes through the given string, and replaces xxxx@yyyy with an HTML mailto: tag linking
609 * to that email address
610 * - Only matches these 2 patterns either after a space, or at the beginning of a line
612 * Notes: the email one might get annoying - it's easy to make it more restrictive, though.. maybe
613 * have it require something like xxxx@yyyy.zzzz or such. We'll see.
615 function make_clickable($text)
618 // pad it with a space so we can match things at the start of the 1st line.
621 // matches an "xxxx://yyyy" URL at the start of a line, or after a space.
622 // xxxx can only be alpha characters.
623 // yyyy is anything up to the first space, newline, comma, double quote or <
624 $ret = preg_replace("#(^|[\n ])([\w]+?://[^ \"\n\r\t<]*)#is", "\\1<a href=\"\\2\" target=\"_blank\">\\2</a>", $ret);
626 // matches a "www|ftp.xxxx.yyyy[/zzzz]" kinda lazy URL thing
627 // Must contain at least 2 dots. xxxx contains either alphanum, or "-"
628 // zzzz is optional.. will contain everything up to the first space, newline,
629 // comma, double quote or <.
630 $ret = preg_replace("#(^|[\n ])((www|ftp)\.[^ \"\t\n\r<]*)#is", "\\1<a href=\"http://\\2\" target=\"_blank\">\\2</a>", $ret);
632 // matches an email@domain type address at the start of a line, or after a space.
633 // Note: Only the followed chars are valid; alphanums, "-", "_" and or ".".
634 $ret = preg_replace("#(^|[\n ])([a-z0-9&\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)#i", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>", $ret);
636 // Remove our padding..
637 $ret = substr($ret, 1);
643 * Nathan Codding - Feb 6, 2001
644 * Reverses the effects of make_clickable(), for use in editpost.
645 * - Does not distinguish between "www.xxxx.yyyy" and "http://aaaa.bbbb" type URLs.
648 function undo_make_clickable($text)
650 $text = preg_replace("#<!-- BBCode auto-link start --><a href=\"(.*?)\" target=\"_blank\">.*?</a><!-- BBCode auto-link end -->#i", "\\1", $text);
651 $text = preg_replace("#<!-- BBcode auto-mailto start --><a href=\"mailto:(.*?)\">.*?</a><!-- BBCode auto-mailto end -->#i", "\\1", $text);
658 * Nathan Codding - August 24, 2000.
659 * Takes a string, and does the reverse of the PHP standard function
660 * htmlspecialchars().
662 function undo_htmlspecialchars($input)
664 $input = preg_replace("/>/i", ">", $input);
665 $input = preg_replace("/</i", "<", $input);
666 $input = preg_replace("/"/i", "\"", $input);
667 $input = preg_replace("/&/i", "&", $input);
673 * This is used to change a [*] tag into a [*:$uid] tag as part
674 * of the first-pass bbencoding of [list] tags. It fits the
675 * standard required in order to be passed as a variable
676 * function into bbencode_first_pass_pda().
678 function replace_listitems($text, $uid)
680 $text = str_replace("[*]", "[*:$uid]", $text);
686 * Escapes the "/" character with "\/". This is useful when you need
687 * to stick a runtime string into a PREG regexp that is being delimited
690 function escape_slashes($input)
692 $output = str_replace('/', '\/', $input);
697 * This function does exactly what the PHP4 function array_push() does
698 * however, to keep phpBB compatable with PHP 3 we had to come up with our own
699 * method of doing it.
701 function bbcode_array_push(&$stack, $value)
704 return(sizeof($stack));
708 * This function does exactly what the PHP4 function array_pop() does
709 * however, to keep phpBB compatable with PHP 3 we had to come up with our own
710 * method of doing it.
712 function bbcode_array_pop(&$stack)
714 $arrSize = count($stack);
717 while(list($key, $val) = each($stack))
719 if($x < count($stack))
735 // Smilies code ... would this be better tagged on to the end of bbcode.php?
736 // Probably so and I'll move it before B2
738 function smilies_pass($message)
744 global $db, $board_config;
745 $orig = $repl = array();
747 $sql = 'SELECT * FROM ' . SMILIES_TABLE;
748 if( !$result = $db->sql_query($sql) )
750 message_die(GENERAL_ERROR, "Couldn't obtain smilies data", "", __LINE__, __FILE__, $sql);
752 $smilies = $db->sql_fetchrowset($result);
756 usort($smilies, 'smiley_sort');
759 for ($i = 0; $i < count($smilies); $i++)
761 $orig[] = "/(?<=.\W|\W.|^\W)" . phpbb_preg_quote($smilies[$i]['code'], "/") . "(?=.\W|\W.|\W$)/";
762 $repl[] = '<img src="'. $board_config['smilies_path'] . '/' . $smilies[$i]['smile_url'] . '" alt="' . $smilies[$i]['emoticon'] . '" border="0" />';
768 $message = preg_replace($orig, $repl, ' ' . $message . ' ');
769 $message = substr($message, 1, -1);
775 function smiley_sort($a, $b)
777 if ( strlen($a['code']) == strlen($b['code']) )
782 return ( strlen($a['code']) > strlen($b['code']) ) ? -1 : 1;