| [3] | 1 | <?php |
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| 2 | |
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| 3 | /** |
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| 4 | * Copyright (C) 2008-2011 FluxBB |
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| 5 | * based on code by Rickard Andersson copyright (C) 2002-2008 PunBB |
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| 6 | * License: http://www.gnu.org/licenses/gpl.html GPL version 2 or higher |
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| 7 | */ |
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| 8 | |
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| 9 | // Make sure no one attempts to run this script "directly" |
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| 10 | if (!defined('PUN')) |
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| 11 | exit; |
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| 12 | |
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| 13 | // Global variables |
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| 14 | /* regular expression to match nested BBCode LIST tags |
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| 15 | '% |
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| 16 | \[list # match opening bracket and tag name of outermost LIST tag |
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| 17 | (?:=([1a*]))?+ # optional attribute capture in group 1 |
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| 18 | \] # closing bracket of outermost opening LIST tag |
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| 19 | ( # capture contents of LIST tag in group 2 |
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| 20 | (?: # non capture group for either contents or whole nested LIST |
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| 21 | [^\[]*+ # unroll the loop! consume everything up to next [ (normal *) |
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| 22 | (?: # (See "Mastering Regular Expressions" chapter 6 for details) |
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| 23 | (?! # negative lookahead ensures we are NOT on [LIST*] or [/LIST] |
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| 24 | \[list # opening LIST tag |
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| 25 | (?:=[1a*])?+ # with optional attribute |
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| 26 | \] # closing bracket of opening LIST tag |
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| 27 | | # or... |
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| 28 | \[/list\] # a closing LIST tag |
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| 29 | ) # end negative lookahead assertion (we are not on a LIST tag) |
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| 30 | \[ # match the [ which is NOT the start of LIST tag (special) |
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| 31 | [^\[]*+ # consume everything up to next [ (normal *) |
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| 32 | )*+ # finish up "unrolling the loop" technique (special (normal*))* |
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| 33 | | # or... |
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| 34 | (?R) # recursively match a whole nested LIST element |
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| 35 | )* # as many times as necessary until deepest nested LIST tag grabbed |
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| 36 | ) # end capturing contents of LIST tag into group 2 |
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| 37 | \[/list\] # match outermost closing LIST tag |
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| 38 | %iex' */ |
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| 39 | $re_list = '%\[list(?:=([1a*]))?+\]((?:[^\[]*+(?:(?!\[list(?:=[1a*])?+\]|\[/list\])\[[^\[]*+)*+|(?R))*)\[/list\]%ie'; |
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| 40 | |
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| 41 | // Here you can add additional smilies if you like (please note that you must escape single quote and backslash) |
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| 42 | $smilies = array( |
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| 43 | ':)' => 'smile.png', |
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| 44 | '=)' => 'smile.png', |
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| 45 | ':|' => 'neutral.png', |
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| 46 | '=|' => 'neutral.png', |
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| 47 | ':(' => 'sad.png', |
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| 48 | '=(' => 'sad.png', |
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| 49 | ':D' => 'big_smile.png', |
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| 50 | '=D' => 'big_smile.png', |
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| 51 | ':o' => 'yikes.png', |
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| 52 | ':O' => 'yikes.png', |
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| 53 | ';)' => 'wink.png', |
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| 54 | ':/' => 'hmm.png', |
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| 55 | ':P' => 'tongue.png', |
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| 56 | ':p' => 'tongue.png', |
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| 57 | ':lol:' => 'lol.png', |
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| 58 | ':mad:' => 'mad.png', |
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| 59 | ':rolleyes:' => 'roll.png', |
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| 60 | ':cool:' => 'cool.png'); |
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| 61 | |
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| 62 | // |
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| 63 | // Make sure all BBCodes are lower case and do a little cleanup |
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| 64 | // |
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| 65 | function preparse_bbcode($text, &$errors, $is_signature = false) |
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| 66 | { |
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| 67 | global $pun_config, $lang_common, $lang_post, $re_list; |
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| 68 | |
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| 69 | if ($is_signature) |
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| 70 | { |
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| 71 | global $lang_profile; |
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| 72 | |
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| 73 | if (preg_match('%\[/?(?:quote|code|list|h)\b[^\]]*\]%i', $text)) |
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| 74 | $errors[] = $lang_profile['Signature quote/code/list/h']; |
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| 75 | } |
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| 76 | |
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| 77 | // If the message contains a code tag we have to split it up (text within [code][/code] shouldn't be touched) |
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| 78 | if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false) |
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| 79 | list($inside, $text) = extract_blocks($text, '[code]', '[/code]', $errors); |
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| 80 | |
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| 81 | // Tidy up lists |
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| 82 | $temp = preg_replace($re_list, 'preparse_list_tag(\'$2\', \'$1\', $errors)', $text); |
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| 83 | |
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| 84 | // If the regex failed |
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| 85 | if ($temp === null) |
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| 86 | $errors[] = $lang_common['BBCode list size error']; |
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| 87 | else |
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| 88 | $text = str_replace('*'."\0".']', '*]', $temp); |
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| 89 | |
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| 90 | if ($pun_config['o_make_links'] == '1') |
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| 91 | $text = do_clickable($text); |
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| 92 | |
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| 93 | // If we split up the message before we have to concatenate it together again (code tags) |
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| 94 | if (isset($inside)) |
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| 95 | { |
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| 96 | $outside = explode("\1", $text); |
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| 97 | $text = ''; |
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| 98 | |
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| 99 | $num_tokens = count($outside); |
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| 100 | for ($i = 0; $i < $num_tokens; ++$i) |
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| 101 | { |
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| 102 | $text .= $outside[$i]; |
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| 103 | if (isset($inside[$i])) |
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| 104 | $text .= '[code]'.$inside[$i].'[/code]'; |
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| 105 | } |
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| 106 | |
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| 107 | unset($inside); |
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| 108 | } |
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| 109 | |
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| 110 | $temp_text = false; |
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| 111 | if (empty($errors)) |
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| 112 | $temp_text = preparse_tags($text, $errors, $is_signature); |
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| 113 | |
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| 114 | if ($temp_text !== false) |
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| 115 | $text = $temp_text; |
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| 116 | |
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| 117 | // Remove empty tags |
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| 118 | while (($new_text = strip_empty_bbcode($text, $errors)) !== false) |
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| 119 | { |
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| 120 | if ($new_text != $text) |
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| 121 | { |
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| 122 | $text = $new_text; |
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| 123 | if ($new_text == '') |
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| 124 | { |
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| 125 | $errors[] = $lang_post['Empty after strip']; |
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| 126 | break; |
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| 127 | } |
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| 128 | } |
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| 129 | else |
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| 130 | break; |
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| 131 | } |
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| 132 | |
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| 133 | return pun_trim($text); |
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| 134 | } |
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| 135 | |
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| 136 | |
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| 137 | // |
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| 138 | // Strip empty bbcode tags from some text |
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| 139 | // |
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| 140 | function strip_empty_bbcode($text, &$errors) |
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| 141 | { |
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| 142 | // If the message contains a code tag we have to split it up (empty tags within [code][/code] are fine) |
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| 143 | if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false) |
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| 144 | list($inside, $text) = extract_blocks($text, '[code]', '[/code]', $errors); |
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| 145 | |
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| 146 | // Remove empty tags |
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| 147 | while (($new_text = preg_replace('%\[(b|u|s|ins|del|em|i|h|colou?r|quote|img|url|email|list|topic|post|forum|user)(?:\=[^\]]*)?\]\s*\[/\1\]%', '', $text)) !== NULL) |
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| 148 | { |
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| 149 | if ($new_text != $text) |
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| 150 | $text = $new_text; |
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| 151 | else |
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| 152 | break; |
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| 153 | } |
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| 154 | |
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| 155 | // If we split up the message before we have to concatenate it together again (code tags) |
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| 156 | if (isset($inside)) { |
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| 157 | $parts = explode("\1", $text); |
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| 158 | $text = ''; |
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| 159 | foreach ($parts as $i => $part) |
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| 160 | { |
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| 161 | $text .= $part; |
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| 162 | if (isset($inside[$i])) |
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| 163 | $text .= '[code]'.$inside[$i].'[/code]'; |
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| 164 | } |
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| 165 | } |
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| 166 | |
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| 167 | // Remove empty code tags |
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| 168 | while (($new_text = preg_replace('%\[(code)\]\s*\[/\1\]%', '', $text)) !== NULL) |
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| 169 | { |
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| 170 | if ($new_text != $text) |
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| 171 | $text = $new_text; |
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| 172 | else |
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| 173 | break; |
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| 174 | } |
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| 175 | |
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| 176 | return $text; |
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| 177 | } |
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| 178 | |
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| 179 | |
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| 180 | // |
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| 181 | // Check the structure of bbcode tags and fix simple mistakes where possible |
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| 182 | // |
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| 183 | function preparse_tags($text, &$errors, $is_signature = false) |
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| 184 | { |
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| 185 | global $lang_common, $pun_config; |
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| 186 | |
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| 187 | // Start off by making some arrays of bbcode tags and what we need to do with each one |
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| 188 | |
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| 189 | // List of all the tags |
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| 190 | $tags = array('quote', 'code', 'b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'img', 'list', '*', 'h', 'topic', 'post', 'forum', 'user'); |
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| 191 | // List of tags that we need to check are open (You could not put b,i,u in here then illegal nesting like [b][i][/b][/i] would be allowed) |
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| 192 | $tags_opened = $tags; |
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| 193 | // and tags we need to check are closed (the same as above, added it just in case) |
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| 194 | $tags_closed = $tags; |
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| 195 | // Tags we can nest and the depth they can be nested to |
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| 196 | $tags_nested = array('quote' => $pun_config['o_quote_depth'], 'list' => 5, '*' => 5); |
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| 197 | // Tags to ignore the contents of completely (just code) |
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| 198 | $tags_ignore = array('code'); |
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| 199 | // Block tags, block tags can only go within another block tag, they cannot be in a normal tag |
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| 200 | $tags_block = array('quote', 'code', 'list', 'h', '*'); |
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| 201 | // Inline tags, we do not allow new lines in these |
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| 202 | $tags_inline = array('b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'h', 'topic', 'post', 'forum', 'user'); |
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| 203 | // Tags we trim interior space |
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| 204 | $tags_trim = array('img'); |
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| 205 | // Tags we remove quotes from the argument |
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| 206 | $tags_quotes = array('url', 'email', 'img', 'topic', 'post', 'forum', 'user'); |
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| 207 | // Tags we limit bbcode in |
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| 208 | $tags_limit_bbcode = array( |
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| 209 | '*' => array('b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'list', 'img', 'code', 'topic', 'post', 'forum', 'user'), |
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| 210 | 'list' => array('*'), |
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| 211 | 'url' => array('img'), |
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| 212 | 'email' => array('img'), |
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| 213 | 'topic' => array('img'), |
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| 214 | 'post' => array('img'), |
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| 215 | 'forum' => array('img'), |
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| 216 | 'user' => array('img'), |
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| 217 | 'img' => array(), |
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| 218 | 'h' => array('b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'topic', 'post', 'forum', 'user'), |
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| 219 | ); |
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| 220 | // Tags we can automatically fix bad nesting |
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| 221 | $tags_fix = array('quote', 'b', 'i', 'u', 's', 'ins', 'del', 'em', 'color', 'colour', 'url', 'email', 'h', 'topic', 'post', 'forum', 'user'); |
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| 222 | |
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| 223 | $split_text = preg_split('%(\[[\*a-zA-Z0-9-/]*?(?:=.*?)?\])%', $text, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY); |
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| 224 | |
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| 225 | $open_tags = array('fluxbb-bbcode'); |
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| 226 | $open_args = array(''); |
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| 227 | $opened_tag = 0; |
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| 228 | $new_text = ''; |
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| 229 | $current_ignore = ''; |
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| 230 | $current_nest = ''; |
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| 231 | $current_depth = array(); |
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| 232 | $limit_bbcode = $tags; |
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| 233 | $count_ignored = array(); |
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| 234 | |
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| 235 | foreach ($split_text as $current) |
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| 236 | { |
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| 237 | if ($current == '') |
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| 238 | continue; |
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| 239 | |
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| 240 | // Are we dealing with a tag? |
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| 241 | if (substr($current, 0, 1) != '[' || substr($current, -1, 1) != ']') |
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| 242 | { |
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| 243 | // It's not a bbcode tag so we put it on the end and continue |
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| 244 | // If we are nested too deeply don't add to the end |
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| 245 | if ($current_nest) |
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| 246 | continue; |
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| 247 | |
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| 248 | $current = str_replace("\r\n", "\n", $current); |
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| 249 | $current = str_replace("\r", "\n", $current); |
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| 250 | if (in_array($open_tags[$opened_tag], $tags_inline) && strpos($current, "\n") !== false) |
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| 251 | { |
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| 252 | // Deal with new lines |
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| 253 | $split_current = preg_split('%(\n\n+)%', $current, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY); |
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| 254 | $current = ''; |
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| 255 | |
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| 256 | if (!pun_trim($split_current[0], "\n")) // The first part is a linebreak so we need to handle any open tags first |
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| 257 | array_unshift($split_current, ''); |
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| 258 | |
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| 259 | for ($i = 1; $i < count($split_current); $i += 2) |
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| 260 | { |
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| 261 | $temp_opened = array(); |
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| 262 | $temp_opened_arg = array(); |
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| 263 | $temp = $split_current[$i - 1]; |
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| 264 | while (!empty($open_tags)) |
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| 265 | { |
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| 266 | $temp_tag = array_pop($open_tags); |
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| 267 | $temp_arg = array_pop($open_args); |
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| 268 | |
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| 269 | if (in_array($temp_tag , $tags_inline)) |
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| 270 | { |
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| 271 | array_push($temp_opened, $temp_tag); |
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| 272 | array_push($temp_opened_arg, $temp_arg); |
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| 273 | $temp .= '[/'.$temp_tag.']'; |
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| 274 | } |
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| 275 | else |
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| 276 | { |
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| 277 | array_push($open_tags, $temp_tag); |
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| 278 | array_push($open_args, $temp_arg); |
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| 279 | break; |
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| 280 | } |
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| 281 | } |
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| 282 | $current .= $temp.$split_current[$i]; |
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| 283 | $temp = ''; |
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| 284 | while (!empty($temp_opened)) |
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| 285 | { |
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| 286 | $temp_tag = array_pop($temp_opened); |
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| 287 | $temp_arg = array_pop($temp_opened_arg); |
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| 288 | if (empty($temp_arg)) |
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| 289 | $temp .= '['.$temp_tag.']'; |
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| 290 | else |
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| 291 | $temp .= '['.$temp_tag.'='.$temp_arg.']'; |
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| 292 | array_push($open_tags, $temp_tag); |
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| 293 | array_push($open_args, $temp_arg); |
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| 294 | } |
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| 295 | $current .= $temp; |
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| 296 | } |
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| 297 | |
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| 298 | if (array_key_exists($i - 1, $split_current)) |
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| 299 | $current .= $split_current[$i - 1]; |
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| 300 | } |
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| 301 | |
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| 302 | if (in_array($open_tags[$opened_tag], $tags_trim)) |
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| 303 | $new_text .= pun_trim($current); |
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| 304 | else |
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| 305 | $new_text .= $current; |
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| 306 | |
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| 307 | continue; |
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| 308 | } |
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| 309 | |
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| 310 | // Get the name of the tag |
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| 311 | $current_arg = ''; |
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| 312 | if (strpos($current, '/') === 1) |
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| 313 | { |
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| 314 | $current_tag = substr($current, 2, -1); |
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| 315 | } |
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| 316 | else if (strpos($current, '=') === false) |
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| 317 | { |
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| 318 | $current_tag = substr($current, 1, -1); |
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| 319 | } |
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| 320 | else |
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| 321 | { |
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| 322 | $current_tag = substr($current, 1, strpos($current, '=')-1); |
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| 323 | $current_arg = substr($current, strpos($current, '=')+1, -1); |
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| 324 | } |
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| 325 | $current_tag = strtolower($current_tag); |
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| 326 | |
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| 327 | // Is the tag defined? |
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| 328 | if (!in_array($current_tag, $tags)) |
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| 329 | { |
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| 330 | // It's not a bbcode tag so we put it on the end and continue |
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| 331 | if (!$current_nest) |
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| 332 | $new_text .= $current; |
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| 333 | |
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| 334 | continue; |
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| 335 | } |
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| 336 | |
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| 337 | // We definitely have a bbcode tag |
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| 338 | |
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| 339 | // Make the tag string lower case |
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| 340 | if ($equalpos = strpos($current,'=')) |
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| 341 | { |
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| 342 | // We have an argument for the tag which we don't want to make lowercase |
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| 343 | if (strlen(substr($current, $equalpos)) == 2) |
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| 344 | { |
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| 345 | // Empty tag argument |
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| 346 | $errors[] = sprintf($lang_common['BBCode error empty attribute'], $current_tag); |
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| 347 | return false; |
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| 348 | } |
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| 349 | $current = strtolower(substr($current, 0, $equalpos)).substr($current, $equalpos); |
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| 350 | } |
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| 351 | else |
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| 352 | $current = strtolower($current); |
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| 353 | |
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| 354 | // This is if we are currently in a tag which escapes other bbcode such as code |
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| 355 | // We keep a cound of ignored bbcodes (code tags) so we can nest them, but |
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| 356 | // only balanced sets of tags can be nested |
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| 357 | if ($current_ignore) |
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| 358 | { |
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| 359 | // Increase the current ignored tags counter |
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| 360 | if ('['.$current_ignore.']' == $current) |
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| 361 | { |
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| 362 | if (!isset($count_ignored[$current_tag])) |
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| 363 | $count_ignored[$current_tag] = 2; |
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| 364 | else |
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| 365 | $count_ignored[$current_tag]++; |
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| 366 | } |
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| 367 | |
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| 368 | // Decrease the current ignored tags counter |
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| 369 | if ('[/'.$current_ignore.']' == $current) |
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| 370 | $count_ignored[$current_tag]--; |
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| 371 | |
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| 372 | if ('[/'.$current_ignore.']' == $current && $count_ignored[$current_tag] == 0) |
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| 373 | { |
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| 374 | // We've finished the ignored section |
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| 375 | $current = '[/'.$current_tag.']'; |
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| 376 | $current_ignore = ''; |
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| 377 | $count_ignored = array(); |
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| 378 | } |
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| 379 | |
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| 380 | $new_text .= $current; |
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| 381 | |
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| 382 | continue; |
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| 383 | } |
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| 384 | |
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| 385 | if ($current_nest) |
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| 386 | { |
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| 387 | // We are currently too deeply nested so lets see if we are closing the tag or not |
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| 388 | if ($current_tag != $current_nest) |
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| 389 | continue; |
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| 390 | |
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| 391 | if (substr($current, 1, 1) == '/') |
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| 392 | $current_depth[$current_nest]--; |
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| 393 | else |
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| 394 | $current_depth[$current_nest]++; |
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| 395 | |
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| 396 | if ($current_depth[$current_nest] <= $tags_nested[$current_nest]) |
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| 397 | $current_nest = ''; |
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| 398 | |
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| 399 | continue; |
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| 400 | } |
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| 401 | |
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| 402 | // Check the current tag is allowed here |
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| 403 | if (!in_array($current_tag, $limit_bbcode) && $current_tag != $open_tags[$opened_tag]) |
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| 404 | { |
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| 405 | $errors[] = sprintf($lang_common['BBCode error invalid nesting'], $current_tag, $open_tags[$opened_tag]); |
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| 406 | return false; |
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| 407 | } |
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| 408 | |
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| 409 | if (substr($current, 1, 1) == '/') |
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| 410 | { |
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| 411 | // This is if we are closing a tag |
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| 412 | if ($opened_tag == 0 || !in_array($current_tag, $open_tags)) |
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| 413 | { |
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| 414 | // We tried to close a tag which is not open |
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| 415 | if (in_array($current_tag, $tags_opened)) |
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| 416 | { |
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| 417 | $errors[] = sprintf($lang_common['BBCode error no opening tag'], $current_tag); |
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| 418 | return false; |
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| 419 | } |
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| 420 | } |
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| 421 | else |
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| 422 | { |
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| 423 | // Check nesting |
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| 424 | while (true) |
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| 425 | { |
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| 426 | // Nesting is ok |
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| 427 | if ($open_tags[$opened_tag] == $current_tag) |
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| 428 | { |
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| 429 | array_pop($open_tags); |
|---|
| 430 | array_pop($open_args); |
|---|
| 431 | $opened_tag--; |
|---|
| 432 | break; |
|---|
| 433 | } |
|---|
| 434 | |
|---|
| 435 | // Nesting isn't ok, try to fix it |
|---|
| 436 | if (in_array($open_tags[$opened_tag], $tags_closed) && in_array($current_tag, $tags_closed)) |
|---|
| 437 | { |
|---|
| 438 | if (in_array($current_tag, $open_tags)) |
|---|
| 439 | { |
|---|
| 440 | $temp_opened = array(); |
|---|
| 441 | $temp_opened_arg = array(); |
|---|
| 442 | $temp = ''; |
|---|
| 443 | while (!empty($open_tags)) |
|---|
| 444 | { |
|---|
| 445 | $temp_tag = array_pop($open_tags); |
|---|
| 446 | $temp_arg = array_pop($open_args); |
|---|
| 447 | |
|---|
| 448 | if (!in_array($temp_tag, $tags_fix)) |
|---|
| 449 | { |
|---|
| 450 | // We couldn't fix nesting |
|---|
| 451 | $errors[] = sprintf($lang_common['BBCode error no closing tag'], array_pop($temp_opened)); |
|---|
| 452 | return false; |
|---|
| 453 | } |
|---|
| 454 | array_push($temp_opened, $temp_tag); |
|---|
| 455 | array_push($temp_opened_arg, $temp_arg); |
|---|
| 456 | |
|---|
| 457 | if ($temp_tag == $current_tag) |
|---|
| 458 | break; |
|---|
| 459 | else |
|---|
| 460 | $temp .= '[/'.$temp_tag.']'; |
|---|
| 461 | } |
|---|
| 462 | $current = $temp.$current; |
|---|
| 463 | $temp = ''; |
|---|
| 464 | array_pop($temp_opened); |
|---|
| 465 | array_pop($temp_opened_arg); |
|---|
| 466 | |
|---|
| 467 | while (!empty($temp_opened)) |
|---|
| 468 | { |
|---|
| 469 | $temp_tag = array_pop($temp_opened); |
|---|
| 470 | $temp_arg = array_pop($temp_opened_arg); |
|---|
| 471 | if (empty($temp_arg)) |
|---|
| 472 | $temp .= '['.$temp_tag.']'; |
|---|
| 473 | else |
|---|
| 474 | $temp .= '['.$temp_tag.'='.$temp_arg.']'; |
|---|
| 475 | array_push($open_tags, $temp_tag); |
|---|
| 476 | array_push($open_args, $temp_arg); |
|---|
| 477 | } |
|---|
| 478 | $current .= $temp; |
|---|
| 479 | $opened_tag--; |
|---|
| 480 | break; |
|---|
| 481 | } |
|---|
| 482 | else |
|---|
| 483 | { |
|---|
| 484 | // We couldn't fix nesting |
|---|
| 485 | $errors[] = sprintf($lang_common['BBCode error no opening tag'], $current_tag); |
|---|
| 486 | return false; |
|---|
| 487 | } |
|---|
| 488 | } |
|---|
| 489 | else if (in_array($open_tags[$opened_tag], $tags_closed)) |
|---|
| 490 | break; |
|---|
| 491 | else |
|---|
| 492 | { |
|---|
| 493 | array_pop($open_tags); |
|---|
| 494 | array_pop($open_args); |
|---|
| 495 | $opened_tag--; |
|---|
| 496 | } |
|---|
| 497 | } |
|---|
| 498 | } |
|---|
| 499 | |
|---|
| 500 | if (in_array($current_tag, array_keys($tags_nested))) |
|---|
| 501 | { |
|---|
| 502 | if (isset($current_depth[$current_tag])) |
|---|
| 503 | $current_depth[$current_tag]--; |
|---|
| 504 | } |
|---|
| 505 | |
|---|
| 506 | if (in_array($open_tags[$opened_tag], array_keys($tags_limit_bbcode))) |
|---|
| 507 | $limit_bbcode = $tags_limit_bbcode[$open_tags[$opened_tag]]; |
|---|
| 508 | else |
|---|
| 509 | $limit_bbcode = $tags; |
|---|
| 510 | |
|---|
| 511 | $new_text .= $current; |
|---|
| 512 | |
|---|
| 513 | continue; |
|---|
| 514 | } |
|---|
| 515 | else |
|---|
| 516 | { |
|---|
| 517 | // We are opening a tag |
|---|
| 518 | if (in_array($current_tag, array_keys($tags_limit_bbcode))) |
|---|
| 519 | $limit_bbcode = $tags_limit_bbcode[$current_tag]; |
|---|
| 520 | else |
|---|
| 521 | $limit_bbcode = $tags; |
|---|
| 522 | |
|---|
| 523 | if (in_array($current_tag, $tags_block) && !in_array($open_tags[$opened_tag], $tags_block) && $opened_tag != 0) |
|---|
| 524 | { |
|---|
| 525 | // We tried to open a block tag within a non-block tag |
|---|
| 526 | $errors[] = sprintf($lang_common['BBCode error invalid nesting'], $current_tag, $open_tags[$opened_tag]); |
|---|
| 527 | return false; |
|---|
| 528 | } |
|---|
| 529 | |
|---|
| 530 | if (in_array($current_tag, $tags_ignore)) |
|---|
| 531 | { |
|---|
| 532 | // It's an ignore tag so we don't need to worry about what's inside it |
|---|
| 533 | $current_ignore = $current_tag; |
|---|
| 534 | $new_text .= $current; |
|---|
| 535 | continue; |
|---|
| 536 | } |
|---|
| 537 | |
|---|
| 538 | // Deal with nested tags |
|---|
| 539 | if (in_array($current_tag, $open_tags) && !in_array($current_tag, array_keys($tags_nested))) |
|---|
| 540 | { |
|---|
| 541 | // We nested a tag we shouldn't |
|---|
| 542 | $errors[] = sprintf($lang_common['BBCode error invalid self-nesting'], $current_tag); |
|---|
| 543 | return false; |
|---|
| 544 | } |
|---|
| 545 | else if (in_array($current_tag, array_keys($tags_nested))) |
|---|
| 546 | { |
|---|
| 547 | // We are allowed to nest this tag |
|---|
| 548 | |
|---|
| 549 | if (isset($current_depth[$current_tag])) |
|---|
| 550 | $current_depth[$current_tag]++; |
|---|
| 551 | else |
|---|
| 552 | $current_depth[$current_tag] = 1; |
|---|
| 553 | |
|---|
| 554 | // See if we are nested too deep |
|---|
| 555 | if ($current_depth[$current_tag] > $tags_nested[$current_tag]) |
|---|
| 556 | { |
|---|
| 557 | $current_nest = $current_tag; |
|---|
| 558 | continue; |
|---|
| 559 | } |
|---|
| 560 | } |
|---|
| 561 | |
|---|
| 562 | // Remove quotes from arguments for certain tags |
|---|
| 563 | if (strpos($current, '=') !== false && in_array($current_tag, $tags_quotes)) |
|---|
| 564 | { |
|---|
| 565 | $current = preg_replace('%\['.$current_tag.'=("|\'|)(.*?)\\1\]\s*%i', '['.$current_tag.'=$2]', $current); |
|---|
| 566 | } |
|---|
| 567 | |
|---|
| 568 | if (in_array($current_tag, array_keys($tags_limit_bbcode))) |
|---|
| 569 | $limit_bbcode = $tags_limit_bbcode[$current_tag]; |
|---|
| 570 | |
|---|
| 571 | $open_tags[] = $current_tag; |
|---|
| 572 | $open_args[] = $current_arg; |
|---|
| 573 | $opened_tag++; |
|---|
| 574 | $new_text .= $current; |
|---|
| 575 | continue; |
|---|
| 576 | } |
|---|
| 577 | } |
|---|
| 578 | |
|---|
| 579 | // Check we closed all the tags we needed to |
|---|
| 580 | foreach ($tags_closed as $check) |
|---|
| 581 | { |
|---|
| 582 | if (in_array($check, $open_tags)) |
|---|
| 583 | { |
|---|
| 584 | // We left an important tag open |
|---|
| 585 | $errors[] = sprintf($lang_common['BBCode error no closing tag'], $check); |
|---|
| 586 | return false; |
|---|
| 587 | } |
|---|
| 588 | } |
|---|
| 589 | |
|---|
| 590 | if ($current_ignore) |
|---|
| 591 | { |
|---|
| 592 | // We left an ignore tag open |
|---|
| 593 | $errors[] = sprintf($lang_common['BBCode error no closing tag'], $current_ignore); |
|---|
| 594 | return false; |
|---|
| 595 | } |
|---|
| 596 | |
|---|
| 597 | return $new_text; |
|---|
| 598 | } |
|---|
| 599 | |
|---|
| 600 | |
|---|
| 601 | // |
|---|
| 602 | // Preparse the contents of [list] bbcode |
|---|
| 603 | // |
|---|
| 604 | function preparse_list_tag($content, $type = '*', &$errors) |
|---|
| 605 | { |
|---|
| 606 | global $lang_common, $re_list; |
|---|
| 607 | |
|---|
| 608 | if (strlen($type) != 1) |
|---|
| 609 | $type = '*'; |
|---|
| 610 | |
|---|
| 611 | if (strpos($content,'[list') !== false) |
|---|
| 612 | { |
|---|
| 613 | $content = preg_replace($re_list, 'preparse_list_tag(\'$2\', \'$1\', $errors)', $content); |
|---|
| 614 | } |
|---|
| 615 | |
|---|
| 616 | $items = explode('[*]', str_replace('\"', '"', $content)); |
|---|
| 617 | |
|---|
| 618 | $content = ''; |
|---|
| 619 | foreach ($items as $item) |
|---|
| 620 | { |
|---|
| 621 | if (pun_trim($item) != '') |
|---|
| 622 | $content .= '[*'."\0".']'.str_replace('[/*]', '', pun_trim($item)).'[/*'."\0".']'."\n"; |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | return '[list='.$type.']'."\n".$content.'[/list]'; |
|---|
| 626 | } |
|---|
| 627 | |
|---|
| 628 | |
|---|
| 629 | // |
|---|
| 630 | // Truncate URL if longer than 55 characters (add http:// or ftp:// if missing) |
|---|
| 631 | // |
|---|
| 632 | function handle_url_tag($url, $link = '', $bbcode = false) |
|---|
| 633 | { |
|---|
| 634 | $url = pun_trim($url); |
|---|
| 635 | $full_url = str_replace(array(' ', '\'', '`', '"'), array('%20', '', '', ''), $url); |
|---|
| 636 | if (strpos($url, 'www.') === 0) // If it starts with www, we add http:// |
|---|
| 637 | $full_url = 'http://'.$full_url; |
|---|
| 638 | else if (strpos($url, 'ftp.') === 0) // Else if it starts with ftp, we add ftp:// |
|---|
| 639 | $full_url = 'ftp://'.$full_url; |
|---|
| 640 | else if (strpos($url, '/') === 0) // Allow for relative URLs that start with a slash |
|---|
| 641 | $full_url = get_base_url(true).$full_url; |
|---|
| 642 | else if (!preg_match('#^([a-z0-9]{3,6})://#', $url)) // Else if it doesn't start with abcdef://, we add http:// |
|---|
| 643 | $full_url = 'http://'.$full_url; |
|---|
| 644 | |
|---|
| 645 | // Ok, not very pretty :-) |
|---|
| 646 | if ($bbcode) |
|---|
| 647 | { |
|---|
| 648 | if ($full_url == $link) |
|---|
| 649 | return '[url]'.$link.'[/url]'; |
|---|
| 650 | else |
|---|
| 651 | return '[url='.$full_url.']'.$link.'[/url]'; |
|---|
| 652 | } |
|---|
| 653 | else |
|---|
| 654 | { |
|---|
| 655 | if ($link == '' || $link == $url) |
|---|
| 656 | { |
|---|
| 657 | $url = pun_htmlspecialchars_decode($url); |
|---|
| 658 | $link = utf8_strlen($url) > 55 ? utf8_substr($url, 0 , 39).' ⊠'.utf8_substr($url, -10) : $url; |
|---|
| 659 | $link = pun_htmlspecialchars($link); |
|---|
| 660 | } |
|---|
| 661 | else |
|---|
| 662 | $link = stripslashes($link); |
|---|
| 663 | |
|---|
| 664 | return '<a href="'.$full_url.'">'.$link.'</a>'; |
|---|
| 665 | } |
|---|
| 666 | } |
|---|
| 667 | |
|---|
| 668 | |
|---|
| 669 | // |
|---|
| 670 | // Turns an URL from the [img] tag into an <img> tag or a <a href...> tag |
|---|
| 671 | // |
|---|
| 672 | function handle_img_tag($url, $is_signature = false, $alt = null) |
|---|
| 673 | { |
|---|
| 674 | global $lang_common, $pun_user; |
|---|
| 675 | |
|---|
| 676 | if ($alt == null) |
|---|
| 677 | $alt = basename($url); |
|---|
| 678 | |
|---|
| 679 | $img_tag = '<a href="'.$url.'"><'.$lang_common['Image link'].' - '.$alt.'></a>'; |
|---|
| 680 | |
|---|
| 681 | if ($is_signature && $pun_user['show_img_sig'] != '0') |
|---|
| 682 | $img_tag = '<img class="sigimage" src="'.$url.'" alt="'.$alt.'" />'; |
|---|
| 683 | else if (!$is_signature && $pun_user['show_img'] != '0') |
|---|
| 684 | $img_tag = '<span class="postimg"><img src="'.$url.'" alt="'.$alt.'" /></span>'; |
|---|
| 685 | |
|---|
| 686 | return $img_tag; |
|---|
| 687 | } |
|---|
| 688 | |
|---|
| 689 | |
|---|
| 690 | // |
|---|
| 691 | // Parse the contents of [list] bbcode |
|---|
| 692 | // |
|---|
| 693 | function handle_list_tag($content, $type = '*') |
|---|
| 694 | { |
|---|
| 695 | global $re_list; |
|---|
| 696 | |
|---|
| 697 | if (strlen($type) != 1) |
|---|
| 698 | $type = '*'; |
|---|
| 699 | |
|---|
| 700 | if (strpos($content,'[list') !== false) |
|---|
| 701 | { |
|---|
| 702 | $content = preg_replace($re_list, 'handle_list_tag(\'$2\', \'$1\')', $content); |
|---|
| 703 | } |
|---|
| 704 | |
|---|
| 705 | $content = preg_replace('#\s*\[\*\](.*?)\[/\*\]\s*#s', '<li><p>$1</p></li>', pun_trim($content)); |
|---|
| 706 | |
|---|
| 707 | if ($type == '*') |
|---|
| 708 | $content = '<ul>'.$content.'</ul>'; |
|---|
| 709 | else |
|---|
| 710 | if ($type == 'a') |
|---|
| 711 | $content = '<ol class="alpha">'.$content.'</ol>'; |
|---|
| 712 | else |
|---|
| 713 | $content = '<ol class="decimal">'.$content.'</ol>'; |
|---|
| 714 | |
|---|
| 715 | return '</p>'.$content.'<p>'; |
|---|
| 716 | } |
|---|
| 717 | |
|---|
| 718 | |
|---|
| 719 | // |
|---|
| 720 | // Convert BBCodes to their HTML equivalent |
|---|
| 721 | // |
|---|
| 722 | function do_bbcode($text, $is_signature = false) |
|---|
| 723 | { |
|---|
| 724 | global $lang_common, $pun_user, $pun_config, $re_list; |
|---|
| 725 | |
|---|
| 726 | if (strpos($text, '[quote') !== false) |
|---|
| 727 | { |
|---|
| 728 | $text = preg_replace('%\[quote\]\s*%', '</p><div class="quotebox"><blockquote><div><p>', $text); |
|---|
| 729 | $text = preg_replace('%\[quote=("|&\#039;|"|\'|)(.*?)\\1\]%se', '"</p><div class=\"quotebox\"><cite>".str_replace(array(\'[\', \'\\"\'), array(\'[\', \'"\'), \'$2\')." ".$lang_common[\'wrote\']."</cite><blockquote><div><p>"', $text); |
|---|
| 730 | $text = preg_replace('%\s*\[\/quote\]%S', '</p></div></blockquote></div><p>', $text); |
|---|
| 731 | } |
|---|
| 732 | |
|---|
| 733 | if (!$is_signature) |
|---|
| 734 | { |
|---|
| 735 | $pattern[] = $re_list; |
|---|
| 736 | $replace[] = 'handle_list_tag(\'$2\', \'$1\')'; |
|---|
| 737 | } |
|---|
| 738 | |
|---|
| 739 | $pattern[] = '%\[b\](.*?)\[/b\]%ms'; |
|---|
| 740 | $pattern[] = '%\[i\](.*?)\[/i\]%ms'; |
|---|
| 741 | $pattern[] = '%\[u\](.*?)\[/u\]%ms'; |
|---|
| 742 | $pattern[] = '%\[s\](.*?)\[/s\]%ms'; |
|---|
| 743 | $pattern[] = '%\[del\](.*?)\[/del\]%ms'; |
|---|
| 744 | $pattern[] = '%\[ins\](.*?)\[/ins\]%ms'; |
|---|
| 745 | $pattern[] = '%\[em\](.*?)\[/em\]%ms'; |
|---|
| 746 | $pattern[] = '%\[colou?r=([a-zA-Z]{3,20}|\#[0-9a-fA-F]{6}|\#[0-9a-fA-F]{3})](.*?)\[/colou?r\]%ms'; |
|---|
| 747 | $pattern[] = '%\[h\](.*?)\[/h\]%ms'; |
|---|
| 748 | |
|---|
| 749 | $replace[] = '<strong>$1</strong>'; |
|---|
| 750 | $replace[] = '<em>$1</em>'; |
|---|
| 751 | $replace[] = '<span class="bbu">$1</span>'; |
|---|
| 752 | $replace[] = '<span class="bbs">$1</span>'; |
|---|
| 753 | $replace[] = '<del>$1</del>'; |
|---|
| 754 | $replace[] = '<ins>$1</ins>'; |
|---|
| 755 | $replace[] = '<em>$1</em>'; |
|---|
| 756 | $replace[] = '<span style="color: $1">$2</span>'; |
|---|
| 757 | $replace[] = '</p><h5>$1</h5><p>'; |
|---|
| 758 | |
|---|
| 759 | if (($is_signature && $pun_config['p_sig_img_tag'] == '1') || (!$is_signature && $pun_config['p_message_img_tag'] == '1')) |
|---|
| 760 | { |
|---|
| 761 | $pattern[] = '%\[img\]((ht|f)tps?://)([^\s<"]*?)\[/img\]%e'; |
|---|
| 762 | $pattern[] = '%\[img=([^\[]*?)\]((ht|f)tps?://)([^\s<"]*?)\[/img\]%e'; |
|---|
| 763 | if ($is_signature) |
|---|
| 764 | { |
|---|
| 765 | $replace[] = 'handle_img_tag(\'$1$3\', true)'; |
|---|
| 766 | $replace[] = 'handle_img_tag(\'$2$4\', true, \'$1\')'; |
|---|
| 767 | } |
|---|
| 768 | else |
|---|
| 769 | { |
|---|
| 770 | $replace[] = 'handle_img_tag(\'$1$3\', false)'; |
|---|
| 771 | $replace[] = 'handle_img_tag(\'$2$4\', false, \'$1\')'; |
|---|
| 772 | } |
|---|
| 773 | } |
|---|
| 774 | |
|---|
| 775 | $pattern[] = '%\[url\]([^\[]*?)\[/url\]%e'; |
|---|
| 776 | $pattern[] = '%\[url=([^\[]+?)\](.*?)\[/url\]%e'; |
|---|
| 777 | $pattern[] = '%\[email\]([^\[]*?)\[/email\]%'; |
|---|
| 778 | $pattern[] = '%\[email=([^\[]+?)\](.*?)\[/email\]%'; |
|---|
| 779 | $pattern[] = '%\[topic\]([^\[]*?)\[/topic\]%e'; |
|---|
| 780 | $pattern[] = '%\[topic=([^\[]+?)\](.*?)\[/topic\]%e'; |
|---|
| 781 | $pattern[] = '%\[post\]([^\[]*?)\[/post\]%e'; |
|---|
| 782 | $pattern[] = '%\[post=([^\[]+?)\](.*?)\[/post\]%e'; |
|---|
| 783 | $pattern[] = '%\[forum\]([^\[]*?)\[/forum\]%e'; |
|---|
| 784 | $pattern[] = '%\[forum=([^\[]+?)\](.*?)\[/forum\]%e'; |
|---|
| 785 | $pattern[] = '%\[user\]([^\[]*?)\[/user\]%e'; |
|---|
| 786 | $pattern[] = '%\[user=([^\[]+?)\](.*?)\[/user\]%e'; |
|---|
| 787 | |
|---|
| 788 | $replace[] = 'handle_url_tag(\'$1\')'; |
|---|
| 789 | $replace[] = 'handle_url_tag(\'$1\', \'$2\')'; |
|---|
| 790 | $replace[] = '<a href="mailto:$1">$1</a>'; |
|---|
| 791 | $replace[] = '<a href="mailto:$1">$2</a>'; |
|---|
| 792 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?id=$1\')'; |
|---|
| 793 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?id=$1\', \'$2\')'; |
|---|
| 794 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?pid=$1#p$1\')'; |
|---|
| 795 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/viewtopic.php?pid=$1#p$1\', \'$2\')'; |
|---|
| 796 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/viewforum.php?id=$1\')'; |
|---|
| 797 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/viewforum.php?id=$1\', \'$2\')'; |
|---|
| 798 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/profile.php?id=$1\')'; |
|---|
| 799 | $replace[] = 'handle_url_tag(\''.get_base_url(true).'/profile.php?id=$1\', \'$2\')'; |
|---|
| 800 | |
|---|
| 801 | // This thing takes a while! :) |
|---|
| 802 | $text = preg_replace($pattern, $replace, $text); |
|---|
| 803 | |
|---|
| 804 | return $text; |
|---|
| 805 | } |
|---|
| 806 | |
|---|
| 807 | |
|---|
| 808 | // |
|---|
| 809 | // Make hyperlinks clickable |
|---|
| 810 | // |
|---|
| 811 | function do_clickable($text) |
|---|
| 812 | { |
|---|
| 813 | $text = ' '.$text; |
|---|
| 814 | |
|---|
| 815 | $text = ucp_preg_replace('%(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(https?|ftp|news){1}://([\p{L}\p{N}\-]+\.([\p{L}\p{N}\-]+\.)*[\p{L}\p{N}]+(:[0-9]+)?(/[^\s\[]*[^\s.,?!\[;:-])?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])%uie', 'stripslashes(\'$1$2$3$4\').handle_url_tag(\'$5://$6\', \'$5://$6\', true).stripslashes(\'$4$10$11$12\')', $text); |
|---|
| 816 | $text = ucp_preg_replace('%(?<=[\s\]\)])(<)?(\[)?(\()?([\'"]?)(www|ftp)\.(([\p{L}\p{N}\-]+\.)*[\p{L}\p{N}]+(:[0-9]+)?(/[^\s\[]*[^\s.,?!\[;:-])?)\4(?(3)(\)))(?(2)(\]))(?(1)(>))(?![^\s]*\[/(?:url|img)\])%uie', 'stripslashes(\'$1$2$3$4\').handle_url_tag(\'$5.$6\', \'$5.$6\', true).stripslashes(\'$4$10$11$12\')', $text); |
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| 817 | |
|---|
| 818 | return substr($text, 1); |
|---|
| 819 | } |
|---|
| 820 | |
|---|
| 821 | |
|---|
| 822 | // |
|---|
| 823 | // Convert a series of smilies to images |
|---|
| 824 | // |
|---|
| 825 | function do_smilies($text) |
|---|
| 826 | { |
|---|
| 827 | global $pun_config, $smilies; |
|---|
| 828 | |
|---|
| 829 | $text = ' '.$text.' '; |
|---|
| 830 | |
|---|
| 831 | foreach ($smilies as $smiley_text => $smiley_img) |
|---|
| 832 | { |
|---|
| 833 | if (strpos($text, $smiley_text) !== false) |
|---|
| 834 | $text = ucp_preg_replace('%(?<=[>\s])'.preg_quote($smiley_text, '%').'(?=[^\p{L}\p{N}])%um', '<img src="'.pun_htmlspecialchars(get_base_url(true).'/img/smilies/'.$smiley_img).'" width="15" height="15" alt="'.substr($smiley_img, 0, strrpos($smiley_img, '.')).'" />', $text); |
|---|
| 835 | } |
|---|
| 836 | |
|---|
| 837 | return substr($text, 1, -1); |
|---|
| 838 | } |
|---|
| 839 | |
|---|
| 840 | |
|---|
| 841 | // |
|---|
| 842 | // Parse message text |
|---|
| 843 | // |
|---|
| 844 | function parse_message($text, $hide_smilies) |
|---|
| 845 | { |
|---|
| 846 | global $pun_config, $lang_common, $pun_user; |
|---|
| 847 | |
|---|
| 848 | if ($pun_config['o_censoring'] == '1') |
|---|
| 849 | $text = censor_words($text); |
|---|
| 850 | |
|---|
| 851 | // Convert applicable characters to HTML entities |
|---|
| 852 | $text = pun_htmlspecialchars($text); |
|---|
| 853 | |
|---|
| 854 | // If the message contains a code tag we have to split it up (text within [code][/code] shouldn't be touched) |
|---|
| 855 | if (strpos($text, '[code]') !== false && strpos($text, '[/code]') !== false) |
|---|
| 856 | list($inside, $text) = extract_blocks($text, '[code]', '[/code]', $errors); |
|---|
| 857 | |
|---|
| 858 | if ($pun_config['p_message_bbcode'] == '1' && strpos($text, '[') !== false && strpos($text, ']') !== false) |
|---|
| 859 | $text = do_bbcode($text); |
|---|
| 860 | |
|---|
| 861 | if ($pun_config['o_smilies'] == '1' && $pun_user['show_smilies'] == '1' && $hide_smilies == '0') |
|---|
| 862 | $text = do_smilies($text); |
|---|
| 863 | |
|---|
| 864 | // Deal with newlines, tabs and multiple spaces |
|---|
| 865 | $pattern = array("\n", "\t", ' ', ' '); |
|---|
| 866 | $replace = array('<br />', '    ', '  ', '  '); |
|---|
| 867 | $text = str_replace($pattern, $replace, $text); |
|---|
| 868 | |
|---|
| 869 | // If we split up the message before we have to concatenate it together again (code tags) |
|---|
| 870 | if (isset($inside)) { |
|---|
| 871 | $parts = explode("\1", $text); |
|---|
| 872 | $text = ''; |
|---|
| 873 | foreach ($parts as $i => $part) |
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| 874 | { |
|---|
| 875 | $text .= $part; |
|---|
| 876 | if (isset($inside[$i])) |
|---|
| 877 | { |
|---|
| 878 | $num_lines = (substr_count($inside[$i], "\n")); |
|---|
| 879 | $text .= '</p><div class="codebox"><pre'.(($num_lines > 28) ? ' class="vscroll"' : '').'><code>'.pun_trim($inside[$i], "\n\r").'</code></pre></div><p>'; |
|---|
| 880 | } |
|---|
| 881 | } |
|---|
| 882 | } |
|---|
| 883 | |
|---|
| 884 | // Add paragraph tag around post, but make sure there are no empty paragraphs |
|---|
| 885 | $text = preg_replace('%<br />\s*?<br />((\s*<br />)*)%i', "</p>$1<p>", $text); |
|---|
| 886 | $text = str_replace('<p><br />', '<p>', $text); |
|---|
| 887 | $text = str_replace('<p></p>', '', '<p>'.$text.'</p>'); |
|---|
| 888 | |
|---|
| 889 | return $text; |
|---|
| 890 | } |
|---|
| 891 | |
|---|
| 892 | |
|---|
| 893 | // |
|---|
| 894 | // Parse signature text |
|---|
| 895 | // |
|---|
| 896 | function parse_signature($text) |
|---|
| 897 | { |
|---|
| 898 | global $pun_config, $lang_common, $pun_user; |
|---|
| 899 | |
|---|
| 900 | if ($pun_config['o_censoring'] == '1') |
|---|
| 901 | $text = censor_words($text); |
|---|
| 902 | |
|---|
| 903 | // Convert applicable characters to HTML entities |
|---|
| 904 | $text = pun_htmlspecialchars($text); |
|---|
| 905 | |
|---|
| 906 | if ($pun_config['p_sig_bbcode'] == '1' && strpos($text, '[') !== false && strpos($text, ']') !== false) |
|---|
| 907 | $text = do_bbcode($text, true); |
|---|
| 908 | |
|---|
| 909 | if ($pun_config['o_smilies_sig'] == '1' && $pun_user['show_smilies'] == '1') |
|---|
| 910 | $text = do_smilies($text); |
|---|
| 911 | |
|---|
| 912 | |
|---|
| 913 | // Deal with newlines, tabs and multiple spaces |
|---|
| 914 | $pattern = array("\n", "\t", ' ', ' '); |
|---|
| 915 | $replace = array('<br />', '    ', '  ', '  '); |
|---|
| 916 | $text = str_replace($pattern, $replace, $text); |
|---|
| 917 | |
|---|
| 918 | // Add paragraph tag around post, but make sure there are no empty paragraphs |
|---|
| 919 | $text = preg_replace('%<br />\s*?<br />((\s*<br />)*)%i', "</p>$1<p>", $text); |
|---|
| 920 | $text = str_replace('<p><br />', '<p>', $text); |
|---|
| 921 | $text = str_replace('<p></p>', '', '<p>'.$text.'</p>'); |
|---|
| 922 | |
|---|
| 923 | return $text; |
|---|
| 924 | } |
|---|
