Completed
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created

htmLawed.php ➔ hl_spec()   C

Complexity

Conditions 24
Paths 36

Size

Total Lines 57
Code Lines 39

Duplication

Lines 6
Ratio 10.53 %

Code Coverage

Tests 7
CRAP Score 374.9964

Importance

Changes 0
Metric Value
cc 24
eloc 39
nc 36
nop 1
dl 6
loc 57
ccs 7
cts 46
cp 0.1522
crap 374.9964
rs 6.3602
c 0
b 0
f 0

How to fix   Long Method    Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

1
<?php
2
3
/*
4
htmLawed 1.2.1.1, 17 May 2017
5
Copyright Santosh Patnaik
6
Dual licensed with LGPL 3 and GPL 2+
7
A PHP Labware internal utility - www.bioinformatics.org/phplabware/internal_utilities/htmLawed
8
9
See htmLawed_README.txt/htm
10
*/
11
12
/**
13
 * @param string $t
14
 * @param int|array $C
15
 * @param array|string $S
16
 * @return string
17
 */
18
function htmLawed($t, $C = 1, $S = array()) {
19 1731
    $C = is_array($C) ? $C : array();
20 1731
    if (!empty($C['valid_xhtml'])) {
21
        $C['elements'] = empty($C['elements']) ? '*-acronym-big-center-dir-font-isindex-s-strike-tt' : $C['elements'];
22
        $C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 2;
23
        $C['xml:lang'] = isset($C['xml:lang']) ? $C['xml:lang'] : 2;
24
    }
25
// config eles
26 1731
    $e = array('a' => 1, 'abbr' => 1, 'acronym' => 1, 'address' => 1, 'applet' => 1, 'area' => 1, 'article' => 1, 'aside' => 1, 'audio' => 1, 'b' => 1, 'bdi' => 1, 'bdo' => 1, 'big' => 1, 'blockquote' => 1, 'br' => 1, 'button' => 1, 'canvas' => 1, 'caption' => 1, 'center' => 1, 'cite' => 1, 'code' => 1, 'col' => 1, 'colgroup' => 1, 'command' => 1, 'data' => 1, 'datalist' => 1, 'dd' => 1, 'del' => 1, 'details' => 1, 'dfn' => 1, 'dir' => 1, 'div' => 1, 'dl' => 1, 'dt' => 1, 'em' => 1, 'embed' => 1, 'fieldset' => 1, 'figcaption' => 1, 'figure' => 1, 'font' => 1, 'footer' => 1, 'form' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'header' => 1, 'hgroup' => 1, 'hr' => 1, 'i' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'ins' => 1, 'isindex' => 1, 'kbd' => 1, 'keygen' => 1, 'label' => 1, 'legend' => 1, 'li' => 1, 'link' => 1, 'main' => 1, 'map' => 1, 'mark' => 1, 'menu' => 1, 'meta' => 1, 'meter' => 1, 'nav' => 1, 'noscript' => 1, 'object' => 1, 'ol' => 1, 'optgroup' => 1, 'option' => 1, 'output' => 1, 'p' => 1, 'param' => 1, 'pre' => 1, 'progress' => 1, 'q' => 1, 'rb' => 1, 'rbc' => 1, 'rp' => 1, 'rt' => 1, 'rtc' => 1, 'ruby' => 1, 's' => 1, 'samp' => 1, 'script' => 1, 'section' => 1, 'select' => 1, 'small' => 1, 'source' => 1, 'span' => 1, 'strike' => 1, 'strong' => 1, 'style' => 1, 'sub' => 1, 'summary' => 1, 'sup' => 1, 'table' => 1, 'tbody' => 1, 'td' => 1, 'textarea' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'time' => 1, 'tr' => 1, 'track' => 1, 'tt' => 1, 'u' => 1, 'ul' => 1, 'var' => 1, 'video' => 1, 'wbr' => 1); // 118 incl. deprecated & some Ruby
27
28 1731
    if (!empty($C['safe'])) {
29 559
        unset($e['applet'], $e['audio'], $e['canvas'], $e['embed'], $e['iframe'], $e['object'], $e['script'], $e['video']);
30 559
    }
31 1731
    $x = !empty($C['elements']) ? str_replace(array("\n", "\r", "\t", ' '), '', $C['elements']) : '*';
32 1731
    if ($x == '-*') {
33
        $e = array();
34 1731
    } elseif (strpos($x, '*') === false) {
35
        $e = array_flip(explode(',', $x));
36
    } else {
37 1731
        if (isset($x[1])) {
38 1163
            preg_match_all('`(?:^|-|\+)[^\-+]+?(?=-|\+|$)`', $x, $m, PREG_SET_ORDER);
39 1163
            for ($i = count($m); --$i >= 0;) {
40 1163
                $m[$i] = $m[$i][0];
41 1163
            }
42 1163
            foreach ($m as $v) {
0 ignored issues
show
Bug introduced by
The expression $m of type null|array<integer,array<integer,string>> is not guaranteed to be traversable. How about adding an additional type check?

There are different options of fixing this problem.

  1. If you want to be on the safe side, you can add an additional type-check:

    $collection = json_decode($data, true);
    if ( ! is_array($collection)) {
        throw new \RuntimeException('$collection must be an array.');
    }
    
    foreach ($collection as $item) { /** ... */ }
    
  2. If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:

    /** @var array $collection */
    $collection = json_decode($data, true);
    
    foreach ($collection as $item) { /** .. */ }
    
  3. Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.

Loading history...
43 1163
                if ($v[0] == '+') {
44
                    $e[substr($v, 1)] = 1;
45
                }
46 1163
                if ($v[0] == '-' && isset($e[($v = substr($v, 1))]) && !in_array('+'.$v, $m)) {
47 1163
                    unset($e[$v]);
48 1163
                }
49 1163
            }
50 1163
        }
51
    }
52 1731
    $C['elements'] =& $e;
53
// config attrs
54 1731
    $x = !empty($C['deny_attribute']) ? strtolower(str_replace(array("\n", "\r", "\t", ' '), '', $C['deny_attribute'])) : '';
55 1731
    $x = array_flip((isset($x[0]) && $x[0] == '*') ? str_replace('/', 'data-', explode('-', str_replace('data-', '/', $x))) : explode(',', $x.(!empty($C['safe']) ? ',on*' : '')));
56 1731
    $C['deny_attribute'] = $x;
57
// config URLs
58 1731
    $x = (isset($C['schemes'][2]) && strpos($C['schemes'], ':')) ? strtolower($C['schemes']) : 'href: aim, feed, file, ftp, gopher, http, https, irc, mailto, news, nntp, sftp, ssh, tel, telnet'.(empty($C['safe']) ? ', app, javascript; *: data, javascript, ' : '; *:').'file, http, https';
59 1731
    $C['schemes'] = array();
60 1731
    foreach (explode(';', str_replace(array(' ', "\t", "\r", "\n"), '', $x)) as $v) {
61 1731
        $x = $x2 = null;
62 1731
        list($x, $x2) = explode(':', $v, 2);
63 1731
        if ($x2) {
64 1731
            $C['schemes'][$x] = array_flip(explode(',', $x2));
65 1731
        }
66 1731
    }
67 1731
    if (!isset($C['schemes']['*'])) {
68
        $C['schemes']['*'] = array('file' => 1, 'http' => 1, 'https' => 1);
69
        if (empty($C['safe'])) {
70
            $C['schemes']['*'] += array('data' => 1, 'javascript' => 1);
71
        }
72
    }
73 1731
    if (!empty($C['safe']) && empty($C['schemes']['style'])) {
74 559
        $C['schemes']['style'] = array('!' => 1);
75 559
    }
76 1731
    $C['abs_url'] = isset($C['abs_url']) ? $C['abs_url'] : 0;
77 1731
    if (!isset($C['base_url']) or !preg_match('`^[a-zA-Z\d.+\-]+://[^/]+/(.+?/)?$`', $C['base_url'])) {
78 1731
        $C['base_url'] = $C['abs_url'] = 0;
79 1731
    }
80
// config rest
81 1731
    $C['and_mark'] = empty($C['and_mark']) ? 0 : 1;
82 1731
    $C['anti_link_spam'] = (isset($C['anti_link_spam']) && is_array($C['anti_link_spam']) && count($C['anti_link_spam']) == 2 && (empty($C['anti_link_spam'][0]) or hl_regex($C['anti_link_spam'][0])) && (empty($C['anti_link_spam'][1]) or hl_regex($C['anti_link_spam'][1]))) ? $C['anti_link_spam'] : 0;
83 1731
    $C['anti_mail_spam'] = isset($C['anti_mail_spam']) ? $C['anti_mail_spam'] : 0;
84 1731
    $C['balance'] = isset($C['balance']) ? (bool)$C['balance'] : 1;
85 1731
    $C['cdata'] = isset($C['cdata']) ? $C['cdata'] : (empty($C['safe']) ? 3 : 0);
86 1731
    $C['clean_ms_char'] = empty($C['clean_ms_char']) ? 0 : $C['clean_ms_char'];
87 1731
    $C['comment'] = isset($C['comment']) ? $C['comment'] : (empty($C['safe']) ? 3 : 0);
88 1731
    $C['css_expression'] = empty($C['css_expression']) ? 0 : 1;
89 1731
    $C['direct_list_nest'] = empty($C['direct_list_nest']) ? 0 : 1;
90 1731
    $C['hexdec_entity'] = isset($C['hexdec_entity']) ? $C['hexdec_entity'] : 1;
91 1731
    $C['hook'] = (!empty($C['hook']) && function_exists($C['hook'])) ? $C['hook'] : 0;
92 1731
    $C['hook_tag'] = (!empty($C['hook_tag']) && function_exists($C['hook_tag'])) ? $C['hook_tag'] : 0;
93 1731
    $C['keep_bad'] = isset($C['keep_bad']) ? $C['keep_bad'] : 6;
94 1731
    $C['lc_std_val'] = isset($C['lc_std_val']) ? (bool)$C['lc_std_val'] : 1;
95 1731
    $C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 1;
96 1731
    $C['named_entity'] = isset($C['named_entity']) ? (bool)$C['named_entity'] : 1;
97 1731
    $C['no_deprecated_attr'] = isset($C['no_deprecated_attr']) ? $C['no_deprecated_attr'] : 1;
98 1731
    $C['parent'] = isset($C['parent'][0]) ? strtolower($C['parent']) : 'body';
99 1731
    $C['show_setting'] = !empty($C['show_setting']) ? $C['show_setting'] : 0;
100 1731
    $C['style_pass'] = empty($C['style_pass']) ? 0 : 1;
101 1731
    $C['tidy'] = empty($C['tidy']) ? 0 : $C['tidy'];
102 1731
    $C['unique_ids'] = isset($C['unique_ids']) && (!preg_match('`\W`', $C['unique_ids'])) ? $C['unique_ids'] : 1;
103 1731
    $C['xml:lang'] = isset($C['xml:lang']) ? $C['xml:lang'] : 0;
104
105 1731
    if (isset($GLOBALS['C'])) {
106 1730
        $reC = $GLOBALS['C'];
107 1730
    }
108 1731
    $GLOBALS['C'] = $C;
109 1731
    $S = is_array($S) ? $S : hl_spec($S);
110 1731
    if (isset($GLOBALS['S'])) {
111 1730
        $reS = $GLOBALS['S'];
112 1730
    }
113 1731
    $GLOBALS['S'] = $S;
114
115 1731
    $t = preg_replace('`[\x00-\x08\x0b-\x0c\x0e-\x1f]`', '', $t);
116 1731
    if ($C['clean_ms_char']) {
117
        $x = array("\x7f" => '', "\x80" => '&#8364;', "\x81" => '', "\x83" => '&#402;', "\x85" => '&#8230;', "\x86" => '&#8224;', "\x87" => '&#8225;', "\x88" => '&#710;', "\x89" => '&#8240;', "\x8a" => '&#352;', "\x8b" => '&#8249;', "\x8c" => '&#338;', "\x8d" => '', "\x8e" => '&#381;', "\x8f" => '', "\x90" => '', "\x95" => '&#8226;', "\x96" => '&#8211;', "\x97" => '&#8212;', "\x98" => '&#732;', "\x99" => '&#8482;', "\x9a" => '&#353;', "\x9b" => '&#8250;', "\x9c" => '&#339;', "\x9d" => '', "\x9e" => '&#382;', "\x9f" => '&#376;');
118
        $x = $x + ($C['clean_ms_char'] == 1 ? array("\x82" => '&#8218;', "\x84" => '&#8222;', "\x91" => '&#8216;', "\x92" => '&#8217;', "\x93" => '&#8220;', "\x94" => '&#8221;') : array("\x82" => '\'', "\x84" => '"', "\x91" => '\'', "\x92" => '\'', "\x93" => '"', "\x94" => '"'));
119
        $t = strtr($t, $x);
120
    }
121 1731
    if ($C['cdata'] or $C['comment']) {
122 1172
        $t = preg_replace_callback('`<!(?:(?:--.*?--)|(?:\[CDATA\[.*?\]\]))>`sm', 'hl_cmtcd', $t);
123 1172
    }
124 1731
    $t = preg_replace_callback('`&amp;([a-zA-Z][a-zA-Z0-9]{1,30}|#(?:[0-9]{1,8}|[Xx][0-9A-Fa-f]{1,7}));`', 'hl_ent', str_replace('&', '&amp;', $t));
125 1731
    if ($C['unique_ids'] && !isset($GLOBALS['hl_Ids'])) {
126 1
        $GLOBALS['hl_Ids'] = array();
127 1
    }
128 1731
    if ($C['hook']) {
129
        $t = $C['hook']($t, $C, $S);
130
    }
131 1731
    if ($C['show_setting'] && preg_match('`^[a-z][a-z0-9_]*$`i', $C['show_setting'])) {
132
        $GLOBALS[$C['show_setting']] = array('config' => $C, 'spec' => $S, 'time' => microtime());
133
    }
134
// main
135 1731
    $t = preg_replace_callback('`<(?:(?:\s|$)|(?:[^>]*(?:>|$)))|>`m', 'hl_tag', $t);
136 1731
    $t = $C['balance'] ? hl_bal($t, $C['keep_bad'], $C['parent']) : $t;
137 1731
    $t = (($C['cdata'] or $C['comment']) && strpos($t, "\x01") !== false) ? str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05"), array('', '', '&', '<', '>'), $t) : $t;
138 1731
    $t = $C['tidy'] ? hl_tidy($t, $C['tidy'], $C['parent']) : $t;
139 1731
    unset($C, $e);
140 1731
    if (isset($reC)) {
141 1730
        $GLOBALS['C'] = $reC;
142 1730
    }
143 1731
    if (isset($reS)) {
144 1730
        $GLOBALS['S'] = $reS;
145 1730
    }
146 1731
    return $t;
147
}
148
149
function hl_attrval($a, $t, $p) {
150
// check attr val against $S
151
    static $ma = array('accesskey', 'class', 'itemtype', 'rel');
152
    $s = in_array($a, $ma) ? ' ' : ($a == 'srcset' ? ',' : '');
153
    $r = array();
154
    $t = !empty($s) ? explode($s, $t) : array($t);
155
    foreach ($t as $tk => $tv) {
156
    $o = 1;
157
        $tv = trim($tv);
158
        $l = strlen($tv);
159
    foreach ($p as $k => $v) {
160
            if (!$l) {
161
                continue;
162
            }
163
        switch ($k) {
164
            case 'maxlen':
165
                if ($l > $v) {
166
                    $o = 0;
167
                }
168
                break;
169
            case 'minlen':
170
                if ($l < $v) {
171
                    $o = 0;
172
                }
173
                break;
174
            case 'maxval':
175
                    if ((float)($tv) > $v) {
176
                    $o = 0;
177
                }
178
                break;
179
            case 'minval':
180
                    if ((float)($tv) < $v) {
181
                    $o = 0;
182
                }
183
                break;
184
            case 'match':
185
                    if (!preg_match($v, $tv)) {
186
                    $o = 0;
187
                }
188
                break;
189
            case 'nomatch':
190
                    if (preg_match($v, $tv)) {
191
                    $o = 0;
192
                }
193
                break;
194 View Code Duplication
            case 'oneof':
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
195
                $m = 0;
196
                foreach (explode('|', $v) as $n) {
197
                        if ($tv == $n) {
198
                        $m = 1;
199
                        break;
200
                    }
201
                }
202
                $o = $m;
203
                break;
204 View Code Duplication
            case 'noneof':
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
205
                $m = 1;
206
                foreach (explode('|', $v) as $n) {
207
                        if ($tv == $n) {
208
                        $m = 0;
209
                        break;
210
                    }
211
                }
212
                $o = $m;
213
                break;
214
            default:
215
                break;
216
        }
217
        if (!$o) {
218
            break;
219
        }
220
    }
221
        if ($o) {
222
            $r[] = $tv;
223
        }
224
    }
225
    if ($s == ',') {
226
        $s = ', ';
227
    }
228
    $r = implode($s, $r);
229
    return (isset($r[0]) ? $r : (isset($p['default']) ? $p['default'] : 0));
230
}
231
232
function hl_bal($t, $do = 1, $in = 'div') {
233
// balance tags
234
// by content
235 1731
    $cB = array('form' => 1, 'map' => 1, 'noscript' => 1); // Block
236 1731
    $cE = array('area' => 1, 'br' => 1, 'col' => 1, 'command' => 1, 'embed' => 1, 'hr' => 1, 'img' => 1, 'input' => 1, 'isindex' => 1, 'keygen' => 1, 'link' => 1, 'meta' => 1, 'param' => 1, 'source' => 1, 'track' => 1, 'wbr' => 1); // Empty
237 1731
    $cF = array('a' => 1, 'article' => 1, 'aside' => 1, 'audio' => 1, 'button' => 1, 'blockquote' => 1, 'canvas' => 1, 'del' => 1, 'details' => 1, 'div' => 1, 'dd' => 1, 'fieldset' => 1, 'figure' => 1, 'footer' => 1, 'header' => 1, 'iframe' => 1, 'ins' => 1, 'li' => 1, 'main' => 1, 'menu' => 1, 'nav' => 1, 'noscript' => 1, 'object' => 1, 'section' => 1, 'style' => 1, 'td' => 1, 'th' => 1, 'video' => 1); // Flow; later context-wise dynamic move of ins & del to $cI
238 1731
    $cI = array('abbr' => 1, 'acronym' => 1, 'address' => 1, 'b' => 1, 'bdi' => 1, 'bdo' => 1, 'big' => 1, 'caption' => 1, 'cite' => 1, 'code' => 1, 'data' => 1, 'datalist' => 1, 'dfn' => 1, 'dt' => 1, 'em' => 1, 'figcaption' => 1, 'font' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hgroup' => 1, 'i' => 1, 'kbd' => 1, 'label' => 1, 'legend' => 1, 'mark' => 1, 'meter' => 1, 'output' => 1, 'p' => 1, 'pre' => 1, 'progress' => 1, 'q' => 1, 'rb' => 1, 'rt' => 1, 's' => 1, 'samp' => 1, 'small' => 1, 'span' => 1, 'strike' => 1, 'strong' => 1, 'sub' => 1, 'summary' => 1, 'sup' => 1, 'time' => 1, 'tt' => 1, 'u' => 1, 'var' => 1); // Inline
239 1731
    $cN = array('a' => array('a' => 1, 'address' => 1, 'button' => 1, 'details' => 1, 'embed' => 1, 'keygen' => 1, 'label' => 1, 'select' => 1, 'textarea' => 1), 'address' => array('address' => 1, 'article' => 1, 'aside' => 1, 'header' => 1, 'keygen' => 1, 'footer' => 1, 'nav' => 1, 'section' => 1), 'button' => array('a' => 1, 'address' => 1, 'button' => 1, 'details' => 1, 'embed' => 1, 'fieldset' => 1, 'form' => 1, 'iframe' => 1, 'input' => 1, 'keygen' => 1, 'label' => 1, 'select' => 1, 'textarea' => 1), 'fieldset' => array('fieldset' => 1), 'footer' => array('header' => 1, 'footer' => 1), 'form' => array('form' => 1), 'header' => array('header' => 1, 'footer' => 1), 'label' => array('label' => 1), 'main' => array('main' => 1), 'meter' => array('meter' => 1), 'noscript' => array('script' => 1), 'pre' => array('big' => 1, 'font' => 1, 'img' => 1, 'object' => 1, 'script' => 1, 'small' => 1, 'sub' => 1, 'sup' => 1), 'progress' => array('progress' => 1), 'rb' => array('ruby' => 1), 'rt' => array('ruby' => 1), 'time' => array('time' => 1),); // Illegal
240 1731
    $cN2 = array_keys($cN);
241 1731
    $cS = array('colgroup' => array('col' => 1), 'datalist' => array('option' => 1), 'dir' => array('li' => 1), 'dl' => array('dd' => 1, 'dt' => 1), 'hgroup' => array('h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1), 'menu' => array('li' => 1), 'ol' => array('li' => 1), 'optgroup' => array('option' => 1), 'option' => array('#pcdata' => 1), 'rbc' => array('rb' => 1), 'rp' => array('#pcdata' => 1), 'rtc' => array('rt' => 1), 'ruby' => array('rb' => 1, 'rbc' => 1, 'rp' => 1, 'rt' => 1, 'rtc' => 1), 'select' => array('optgroup' => 1, 'option' => 1), 'script' => array('#pcdata' => 1), 'table' => array('caption' => 1, 'col' => 1, 'colgroup' => 1, 'tfoot' => 1, 'tbody' => 1, 'tr' => 1, 'thead' => 1), 'tbody' => array('tr' => 1), 'tfoot' => array('tr' => 1), 'textarea' => array('#pcdata' => 1), 'thead' => array('tr' => 1), 'tr' => array('td' => 1, 'th' => 1), 'ul' => array('li' => 1)); // Specific - immediate parent-child
242 1731
    if ($GLOBALS['C']['direct_list_nest']) {
243 613
        $cS['ol'] = $cS['ul'] = $cS['menu'] += array('menu' => 1, 'ol' => 1, 'ul' => 1);
244 613
    }
245 1731
    $cO = array('address' => array('p' => 1), 'applet' => array('param' => 1), 'audio' => array('source' => 1, 'track' => 1), 'blockquote' => array('script' => 1), 'details' => array('summary' => 1), 'fieldset' => array('legend' => 1, '#pcdata' => 1), 'figure' => array('figcaption' => 1), 'form' => array('script' => 1), 'map' => array('area' => 1), 'object' => array('param' => 1, 'embed' => 1), 'video' => array('source' => 1, 'track' => 1)); // Other
246 1731
    $cT = array('colgroup' => 1, 'dd' => 1, 'dt' => 1, 'li' => 1, 'option' => 1, 'p' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1); // Omitable closing
247
// block/inline type; a/ins/del both type; #pcdata: text
248 1731
    $eB = array('a' => 1, 'address' => 1, 'article' => 1, 'aside' => 1, 'blockquote' => 1, 'center' => 1, 'del' => 1, 'details' => 1, 'dir' => 1, 'dl' => 1, 'div' => 1, 'fieldset' => 1, 'figure' => 1, 'footer' => 1, 'form' => 1, 'ins' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'header' => 1, 'hr' => 1, 'isindex' => 1, 'main' => 1, 'menu' => 1, 'nav' => 1, 'noscript' => 1, 'ol' => 1, 'p' => 1, 'pre' => 1, 'section' => 1, 'style' => 1, 'table' => 1, 'ul' => 1);
249 1731
    $eI = array('#pcdata' => 1, 'a' => 1, 'abbr' => 1, 'acronym' => 1, 'applet' => 1, 'audio' => 1, 'b' => 1, 'bdi' => 1, 'bdo' => 1, 'big' => 1, 'br' => 1, 'button' => 1, 'canvas' => 1, 'cite' => 1, 'code' => 1, 'command' => 1, 'data' => 1, 'datalist' => 1, 'del' => 1, 'dfn' => 1, 'em' => 1, 'embed' => 1, 'figcaption' => 1, 'font' => 1, 'i' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'ins' => 1, 'kbd' => 1, 'label' => 1, 'link' => 1, 'map' => 1, 'mark' => 1, 'meta' => 1, 'meter' => 1, 'object' => 1, 'output' => 1, 'progress' => 1, 'q' => 1, 'ruby' => 1, 's' => 1, 'samp' => 1, 'select' => 1, 'script' => 1, 'small' => 1, 'span' => 1, 'strike' => 1, 'strong' => 1, 'sub' => 1, 'summary' => 1, 'sup' => 1, 'textarea' => 1, 'time' => 1, 'tt' => 1, 'u' => 1, 'var' => 1, 'video' => 1, 'wbr' => 1);
250 1731
    $eN = array('a' => 1, 'address' => 1, 'article' => 1, 'aside' => 1, 'big' => 1, 'button' => 1, 'details' => 1, 'embed' => 1, 'fieldset' => 1, 'font' => 1, 'footer' => 1, 'form' => 1, 'header' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'keygen' => 1, 'label' => 1, 'meter' => 1, 'nav' => 1, 'object' => 1, 'progress' => 1, 'ruby' => 1, 'script' => 1, 'select' => 1, 'small' => 1, 'sub' => 1, 'sup' => 1, 'textarea' => 1, 'time' => 1); // Exclude from specific ele; $cN values
251 1731
    $eO = array('area' => 1, 'caption' => 1, 'col' => 1, 'colgroup' => 1, 'command' => 1, 'dd' => 1, 'dt' => 1, 'hgroup' => 1, 'keygen' => 1, 'legend' => 1, 'li' => 1, 'optgroup' => 1, 'option' => 1, 'param' => 1, 'rb' => 1, 'rbc' => 1, 'rp' => 1, 'rt' => 1, 'rtc' => 1, 'script' => 1, 'source' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'thead' => 1, 'th' => 1, 'tr' => 1, 'track' => 1); // Missing in $eB & $eI
252 1731
    $eF = $eB + $eI;
253
254
// $in sets allowed child
255 1731
    $in = ((isset($eF[$in]) && $in != '#pcdata') or isset($eO[$in])) ? $in : 'div';
256 1731
    if (isset($cE[$in])) {
257
        return (!$do ? '' : str_replace(array('<', '>'), array('&lt;', '&gt;'), $t));
258
    }
259 1731
    if (isset($cS[$in])) {
260
        $inOk = $cS[$in];
261 1731
    } elseif (isset($cI[$in])) {
262
        $inOk = $eI;
263
        $cI['del'] = 1;
264
        $cI['ins'] = 1;
265 1731
    } elseif (isset($cF[$in])) {
266 1731
        $inOk = $eF;
267 1731
        unset($cI['del'], $cI['ins']);
268 1731
    } elseif (isset($cB[$in])) {
269
        $inOk = $eB;
270
        unset($cI['del'], $cI['ins']);
271
    }
272 1731
    if (isset($cO[$in])) {
273
        $inOk = $inOk + $cO[$in];
0 ignored issues
show
Bug introduced by
The variable $inOk does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
274
    }
275 1731
    if (isset($cN[$in])) {
276
        $inOk = array_diff_assoc($inOk, $cN[$in]);
277
    }
278
279 1731
    $t = explode('<', $t);
280 1731
    $ok = $q = array(); // $q seq list of open non-empty ele
281 1731
    ob_start();
282
283 1731
    for ($i = -1, $ci = count($t); ++$i < $ci;) {
284
        // allowed $ok in parent $p
285 1731 View Code Duplication
        if ($ql = count($q)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
286 298
            $p = array_pop($q);
287 298
            $q[] = $p;
288 298
            if (isset($cS[$p])) {
289 27
                $ok = $cS[$p];
290 298
            } elseif (isset($cI[$p])) {
291 18
                $ok = $eI;
292 18
                $cI['del'] = 1;
293 18
                $cI['ins'] = 1;
294 279
            } elseif (isset($cF[$p])) {
295 265
                $ok = $eF;
296 265
                unset($cI['del'], $cI['ins']);
297 265
            } elseif (isset($cB[$p])) {
298
                $ok = $eB;
299
                unset($cI['del'], $cI['ins']);
300
            }
301 298
            if (isset($cO[$p])) {
302 2
                $ok = $ok + $cO[$p];
303 2
            }
304 298
            if (isset($cN[$p])) {
305 191
                $ok = array_diff_assoc($ok, $cN[$p]);
306 191
            }
307 298
        } else {
308 1731
            $ok = $inOk;
309 1731
            unset($cI['del'], $cI['ins']);
310
        }
311
        // bad tags, & ele content
312 1731 View Code Duplication
        if (isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
313
            echo '&lt;', $s, $e, $a, '&gt;';
0 ignored issues
show
Bug introduced by
The variable $s does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
Bug introduced by
The variable $a does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
314
        }
315 1731 View Code Duplication
        if (isset($x[0])) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
316 284
            if (strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))) {
317
                echo '<div>', $x, '</div>';
318 284
            } elseif ($do < 3 or isset($ok['#pcdata'])) {
319 284
                echo $x;
320 284
            } elseif (strpos($x, "\x02\x04")) {
321
                foreach (preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v) {
322
                    echo(substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
323
                }
324
            } elseif ($do > 4) {
325
                echo preg_replace('`\S`', '', $x);
326
            }
327 284
        }
328
        // get markup
329 1731
        if (!preg_match('`^(/?)([a-z1-6]+)([^>]*)>(.*)`sm', $t[$i], $r)) {
330 1731
            $x = $t[$i];
331 1731
            continue;
332
        }
333 946
        $s = null;
334 946
        $e = null;
335 946
        $a = null;
336 946
        $x = null;
337 946
        list($all, $s, $e, $a, $x) = $r;
0 ignored issues
show
Unused Code introduced by
The assignment to $all is unused. Consider omitting it like so list($first,,$third).

This checks looks for assignemnts to variables using the list(...) function, where not all assigned variables are subsequently used.

Consider the following code example.

<?php

function returnThreeValues() {
    return array('a', 'b', 'c');
}

list($a, $b, $c) = returnThreeValues();

print $a . " - " . $c;

Only the variables $a and $c are used. There was no need to assign $b.

Instead, the list call could have been.

list($a,, $c) = returnThreeValues();
Loading history...
338
        // close tag
339 946
        if ($s) {
340 298
            if (isset($cE[$e]) or !in_array($e, $q)) {
341 23
                continue;
342
            } // Empty/unopen
343 287
            if ($p == $e) {
0 ignored issues
show
Bug introduced by
The variable $p does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
344 286
                array_pop($q);
345 286
                echo '</', $e, '>';
346 286
                unset($e);
347 286
                continue;
348
            } // Last open
349 1
            $add = ''; // Nesting - close open tags that need to be
350 1
            for ($j = -1, $cj = count($q); ++$j < $cj;) {
351 1
                if (($d = array_pop($q)) == $e) {
352 1
                    break;
353
                } else {
354 1
                    $add .= "</{$d}>";
355
                }
356 1
            }
357 1
            echo $add, '</', $e, '>';
358 1
            unset($e);
359 1
            continue;
360
        }
361
        // open tag
362
        // $cB ele needs $eB ele as child
363 946
        if (isset($cB[$e]) && strlen(trim($x))) {
364
            $t[$i] = "{$e}{$a}>";
365
            array_splice($t, $i + 1, 0, 'div>'.$x);
366
            unset($e, $x);
367
            ++$ci;
368
            --$i;
369
            continue;
370
        }
371 946
        if ((($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql)) && !isset($eB[$e]) && !isset($ok[$e])) {
372
            array_splice($t, $i, 0, 'div>');
373
            unset($e, $x);
374
            ++$ci;
375
            --$i;
376
            continue;
377
        }
378
        // if no open ele, $in = parent; mostly immediate parent-child relation should hold
379 946
        if (!$ql or !isset($eN[$e]) or !array_intersect($q, $cN2)) {
380 946
            if (!isset($ok[$e])) {
381 20
                if ($ql && isset($cT[$p])) {
382
                    echo '</', array_pop($q), '>';
383
                    unset($e, $x);
384
                    --$i;
385
                }
386 20
                continue;
387
            }
388 937
            if ($e !== 'span' || !empty($a)) {
389 927
                if (!isset($cE[$e])) {
390 359
                    $q[] = $e;
391 359
                }
392 927
                echo '<', $e, $a, '>';
393 927
            }
394 937
            unset($e);
395 937
            continue;
396
        }
397
        // specific parent-child
398
        if (isset($cS[$p][$e])) {
399
            if (!isset($cE[$e])) {
400
                $q[] = $e;
401
            }
402
            echo '<', $e, $a, '>';
403
            unset($e);
404
            continue;
405
        }
406
        // nesting
407
        $add = '';
408
        $q2 = array();
409
        for ($k = -1, $kc = count($q); ++$k < $kc;) {
410
            $d = $q[$k];
411
            $ok2 = array();
0 ignored issues
show
Unused Code introduced by
$ok2 is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
412
            if (isset($cS[$d])) {
413
                $q2[] = $d;
414
                continue;
415
            }
416
            $ok2 = isset($cI[$d]) ? $eI : $eF;
417
            if (isset($cO[$d])) {
418
                $ok2 = $ok2 + $cO[$d];
419
            }
420
            if (isset($cN[$d])) {
421
                $ok2 = array_diff_assoc($ok2, $cN[$d]);
422
            }
423
            if (!isset($ok2[$e])) {
424
                if (!$k && !isset($inOk[$e])) {
425
                    continue 2;
426
                }
427
                $add = "</{$d}>";
428
                for (; ++$k < $kc;) {
429
                    $add = "</{$q[$k]}>{$add}";
430
                }
431
                break;
432
            } else {
433
                $q2[] = $d;
434
            }
435
        }
436
        $q = $q2;
437
        if (!isset($cE[$e])) {
438
            $q[] = $e;
439
        }
440
        echo $add, '<', $e, $a, '>';
441
        unset($e);
442
        continue;
443
    }
444
445
// end
446 1731 View Code Duplication
    if ($ql = count($q)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
447 111
        $p = array_pop($q);
448 111
        $q[] = $p;
449 111
        if (isset($cS[$p])) {
450 28
            $ok = $cS[$p];
451 111
        } elseif (isset($cI[$p])) {
452 2
            $ok = $eI;
453 2
            $cI['del'] = 1;
454 2
            $cI['ins'] = 1;
455 84
        } elseif (isset($cF[$p])) {
456 82
            $ok = $eF;
457 82
            unset($cI['del'], $cI['ins']);
458 82
        } elseif (isset($cB[$p])) {
459
            $ok = $eB;
460
            unset($cI['del'], $cI['ins']);
461
        }
462 111
        if (isset($cO[$p])) {
463
            $ok = $ok + $cO[$p];
464
        }
465 111
        if (isset($cN[$p])) {
466 10
            $ok = array_diff_assoc($ok, $cN[$p]);
467 10
        }
468 111
    } else {
469 1657
        $ok = $inOk;
470 1657
        unset($cI['del'], $cI['ins']);
471
    }
472 1731 View Code Duplication
    if (isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
473
        echo '&lt;', $s, $e, $a, '&gt;';
474
    }
475 1731 View Code Duplication
    if (isset($x[0])) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
476 499
        if (strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))) {
477
            echo '<div>', $x, '</div>';
478 499
        } elseif ($do < 3 or isset($ok['#pcdata'])) {
479 499
            echo $x;
480 499
        } elseif (strpos($x, "\x02\x04")) {
481
            foreach (preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v) {
482
                echo(substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
483
            }
484
        } elseif ($do > 4) {
485
            echo preg_replace('`\S`', '', $x);
486
        }
487 499
    }
488 1731
    while (!empty($q) && ($e = array_pop($q))) {
489 111
        echo '</', $e, '>';
490 111
    }
491 1731
    $o = ob_get_contents();
492 1731
    ob_end_clean();
493 1731
    return $o;
494
}
495
496
function hl_cmtcd($t) {
497
// comment/CDATA sec handler
498 29
    $t = $t[0];
499 29
    global $C;
500 29
    if (!($v = $C[$n = $t[3] == '-' ? 'comment' : 'cdata'])) {
501
        return $t;
502
    }
503 29
    if ($v == 1) {
504 29
        return '';
505
    }
506
    if ($n == 'comment') {
507
        if (substr(($t = preg_replace('`--+`', '-', substr($t, 4, -3))), -1) != ' ') {
508
            $t .= ' ';
509
        }
510
    } else {
511
        $t = substr($t, 1, -1);
512
    }
513
    $t = $v == 2 ? str_replace(array('&', '<', '>'), array('&amp;', '&lt;', '&gt;'), $t) : $t;
514
    return str_replace(array('&', '<', '>'), array("\x03", "\x04", "\x05"), ($n == 'comment' ? "\x01\x02\x04!--$t--\x05\x02\x01" : "\x01\x01\x04$t\x05\x01\x01"));
515
}
516
517
function hl_ent($t) {
518
// entitity handler
519 249
    global $C;
520 249
    $t = $t[1];
521 249
    static $U = array('quot' => 1, 'amp' => 1, 'lt' => 1, 'gt' => 1);
522 249
    static $N = array('fnof' => '402', 'Alpha' => '913', 'Beta' => '914', 'Gamma' => '915', 'Delta' => '916', 'Epsilon' => '917', 'Zeta' => '918', 'Eta' => '919', 'Theta' => '920', 'Iota' => '921', 'Kappa' => '922', 'Lambda' => '923', 'Mu' => '924', 'Nu' => '925', 'Xi' => '926', 'Omicron' => '927', 'Pi' => '928', 'Rho' => '929', 'Sigma' => '931', 'Tau' => '932', 'Upsilon' => '933', 'Phi' => '934', 'Chi' => '935', 'Psi' => '936', 'Omega' => '937', 'alpha' => '945', 'beta' => '946', 'gamma' => '947', 'delta' => '948', 'epsilon' => '949', 'zeta' => '950', 'eta' => '951', 'theta' => '952', 'iota' => '953', 'kappa' => '954', 'lambda' => '955', 'mu' => '956', 'nu' => '957', 'xi' => '958', 'omicron' => '959', 'pi' => '960', 'rho' => '961', 'sigmaf' => '962', 'sigma' => '963', 'tau' => '964', 'upsilon' => '965', 'phi' => '966', 'chi' => '967', 'psi' => '968', 'omega' => '969', 'thetasym' => '977', 'upsih' => '978', 'piv' => '982', 'bull' => '8226', 'hellip' => '8230', 'prime' => '8242', 'Prime' => '8243', 'oline' => '8254', 'frasl' => '8260', 'weierp' => '8472', 'image' => '8465', 'real' => '8476', 'trade' => '8482', 'alefsym' => '8501', 'larr' => '8592', 'uarr' => '8593', 'rarr' => '8594', 'darr' => '8595', 'harr' => '8596', 'crarr' => '8629', 'lArr' => '8656', 'uArr' => '8657', 'rArr' => '8658', 'dArr' => '8659', 'hArr' => '8660', 'forall' => '8704', 'part' => '8706', 'exist' => '8707', 'empty' => '8709', 'nabla' => '8711', 'isin' => '8712', 'notin' => '8713', 'ni' => '8715', 'prod' => '8719', 'sum' => '8721', 'minus' => '8722', 'lowast' => '8727', 'radic' => '8730', 'prop' => '8733', 'infin' => '8734', 'ang' => '8736', 'and' => '8743', 'or' => '8744', 'cap' => '8745', 'cup' => '8746', 'int' => '8747', 'there4' => '8756', 'sim' => '8764', 'cong' => '8773', 'asymp' => '8776', 'ne' => '8800', 'equiv' => '8801', 'le' => '8804', 'ge' => '8805', 'sub' => '8834', 'sup' => '8835', 'nsub' => '8836', 'sube' => '8838', 'supe' => '8839', 'oplus' => '8853', 'otimes' => '8855', 'perp' => '8869', 'sdot' => '8901', 'lceil' => '8968', 'rceil' => '8969', 'lfloor' => '8970', 'rfloor' => '8971', 'lang' => '9001', 'rang' => '9002', 'loz' => '9674', 'spades' => '9824', 'clubs' => '9827', 'hearts' => '9829', 'diams' => '9830', 'apos' => '39', 'OElig' => '338', 'oelig' => '339', 'Scaron' => '352', 'scaron' => '353', 'Yuml' => '376', 'circ' => '710', 'tilde' => '732', 'ensp' => '8194', 'emsp' => '8195', 'thinsp' => '8201', 'zwnj' => '8204', 'zwj' => '8205', 'lrm' => '8206', 'rlm' => '8207', 'ndash' => '8211', 'mdash' => '8212', 'lsquo' => '8216', 'rsquo' => '8217', 'sbquo' => '8218', 'ldquo' => '8220', 'rdquo' => '8221', 'bdquo' => '8222', 'dagger' => '8224', 'Dagger' => '8225', 'permil' => '8240', 'lsaquo' => '8249', 'rsaquo' => '8250', 'euro' => '8364', 'nbsp' => '160', 'iexcl' => '161', 'cent' => '162', 'pound' => '163', 'curren' => '164', 'yen' => '165', 'brvbar' => '166', 'sect' => '167', 'uml' => '168', 'copy' => '169', 'ordf' => '170', 'laquo' => '171', 'not' => '172', 'shy' => '173', 'reg' => '174', 'macr' => '175', 'deg' => '176', 'plusmn' => '177', 'sup2' => '178', 'sup3' => '179', 'acute' => '180', 'micro' => '181', 'para' => '182', 'middot' => '183', 'cedil' => '184', 'sup1' => '185', 'ordm' => '186', 'raquo' => '187', 'frac14' => '188', 'frac12' => '189', 'frac34' => '190', 'iquest' => '191', 'Agrave' => '192', 'Aacute' => '193', 'Acirc' => '194', 'Atilde' => '195', 'Auml' => '196', 'Aring' => '197', 'AElig' => '198', 'Ccedil' => '199', 'Egrave' => '200', 'Eacute' => '201', 'Ecirc' => '202', 'Euml' => '203', 'Igrave' => '204', 'Iacute' => '205', 'Icirc' => '206', 'Iuml' => '207', 'ETH' => '208', 'Ntilde' => '209', 'Ograve' => '210', 'Oacute' => '211', 'Ocirc' => '212', 'Otilde' => '213', 'Ouml' => '214', 'times' => '215', 'Oslash' => '216', 'Ugrave' => '217', 'Uacute' => '218', 'Ucirc' => '219', 'Uuml' => '220', 'Yacute' => '221', 'THORN' => '222', 'szlig' => '223', 'agrave' => '224', 'aacute' => '225', 'acirc' => '226', 'atilde' => '227', 'auml' => '228', 'aring' => '229', 'aelig' => '230', 'ccedil' => '231', 'egrave' => '232', 'eacute' => '233', 'ecirc' => '234', 'euml' => '235', 'igrave' => '236', 'iacute' => '237', 'icirc' => '238', 'iuml' => '239', 'eth' => '240', 'ntilde' => '241', 'ograve' => '242', 'oacute' => '243', 'ocirc' => '244', 'otilde' => '245', 'ouml' => '246', 'divide' => '247', 'oslash' => '248', 'ugrave' => '249', 'uacute' => '250', 'ucirc' => '251', 'uuml' => '252', 'yacute' => '253', 'thorn' => '254', 'yuml' => '255');
523 249
    if ($t[0] != '#') {
524 147
        return ($C['and_mark'] ? "\x06" : '&').(isset($U[$t]) ? $t : (isset($N[$t]) ? (!$C['named_entity'] ? '#'.($C['hexdec_entity'] > 1 ? 'x'.dechex($N[$t]) : $N[$t]) : $t) : 'amp;'.$t)).';';
525
    }
526 114
    if (($n = ctype_digit($t = substr($t, 1)) ? intval($t) : hexdec(substr($t, 1))) < 9 or ($n > 13 && $n < 32) or $n == 11 or $n == 12 or ($n > 126 && $n < 160 && $n != 133) or ($n > 55295 && ($n < 57344 or ($n > 64975 && $n < 64992) or $n == 65534 or $n == 65535 or $n > 1114111))) {
527 37
        return ($C['and_mark'] ? "\x06" : '&')."amp;#{$t};";
528
    }
529 78
    return ($C['and_mark'] ? "\x06" : '&').'#'.(((ctype_digit($t) && $C['hexdec_entity'] < 2) or !$C['hexdec_entity']) ? $n : 'x'.dechex($n)).';';
530
}
531
532
function hl_prot($p, $c = null) {
533
// check URL scheme
534 566
    global $C;
535 566
    $b = $a = '';
536 566
    if ($c == null) {
537 17
        $c = 'style';
538 17
        $b = $p[1];
539 17
        $a = $p[3];
540 17
        $p = trim($p[2]);
541 17
    }
542 566
    $c = isset($C['schemes'][$c]) ? $C['schemes'][$c] : $C['schemes']['*'];
543 566
    static $d = 'denied:';
544 566
    if (isset($c['!']) && substr($p, 0, 7) != $d) {
545 12
        $p = "$d$p";
546 12
    }
547 566
    if (isset($c['*']) or !strcspn($p, '#?;') or (substr($p, 0, 7) == $d)) {
548 127
        return "{$b}{$p}{$a}";
549
    } // All ok, frag, query, param
550 545
    if (preg_match('`^([^:?[@!$()*,=/\'\]]+?)(:|&#(58|x3a);|%3a|\\\\0{0,4}3a).`i', $p, $m) && !isset($c[strtolower($m[1])])) { // Denied prot
551 324
        return "{$b}{$d}{$p}{$a}";
552
    }
553 223
    if ($C['abs_url']) {
554
        if ($C['abs_url'] == -1 && strpos($p, $C['base_url']) === 0) { // Make url rel
555
            $p = substr($p, strlen($C['base_url']));
556
        } elseif (empty($m[1])) { // Make URL abs
557
            if (substr($p, 0, 2) == '//') {
558
                $p = substr($C['base_url'], 0, strpos($C['base_url'], ':') + 1).$p;
559
            } elseif ($p[0] == '/') {
560
                $p = preg_replace('`(^.+?://[^/]+)(.*)`', '$1', $C['base_url']).$p;
561
            } elseif (strcspn($p, './')) {
562
                $p = $C['base_url'].$p;
563
            } else {
564
                preg_match('`^([a-zA-Z\d\-+.]+://[^/]+)(.*)`', $C['base_url'], $m);
565
                $p = preg_replace('`(?<=/)\./`', '', $m[2].$p);
566
                while (preg_match('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', $p)) {
567
                    $p = preg_replace('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', '', $p);
568
                }
569
                $p = $m[1].$p;
570
            }
571
        }
572
    }
573 223
    return "{$b}{$p}{$a}";
574
}
575
576
function hl_regex($p) {
577
// check regex
578 1154
    if (empty($p)) {
579
        return 0;
580
    }
581 1154
    if ($t = ini_get('track_errors')) {
582 1154
        $o = isset($php_errormsg) ? $php_errormsg : null;
583 1154
    } else {
584
        ini_set('track_errors', 1);
585
    }
586 1154
    unset($php_errormsg);
587 1154
    if (($d = ini_get('display_errors'))) {
588 1154
        ini_set('display_errors', 0);
589 1154
    }
590 1154
    preg_match($p, '');
591 1154
    if ($d) {
592 1154
        ini_set('display_errors', 1);
593 1154
    }
594 1154
    $r = isset($php_errormsg) ? 0 : 1;
595 1154
    if ($t) {
596 1154
        $php_errormsg = isset($o) ? $o : null;
0 ignored issues
show
Unused Code introduced by
$php_errormsg is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
597 1154
    } else {
598
        ini_set('track_errors', 0);
599
    }
600 1154
    return $r;
601
}
602
603
function hl_spec($t) {
604
// final $spec
605 559
    $s = array();
606 559
    $t = str_replace(array("\t", "\r", "\n", ' '), '', preg_replace_callback('/"(?>(`.|[^"])*)"/sm', create_function('$m', 'return substr(str_replace(array(";", "|", "~", " ", ",", "/", "(", ")", \'`"\'), array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08", "\""), $m[0]), 1, -1);'), trim($t)));
607 559
    for ($i = count(($t = explode(';', $t))); --$i >= 0;) {
608 559
        $w = $t[$i];
609 559
        if (empty($w) or ($e = strpos($w, '=')) === false or !strlen(($a = substr($w, $e + 1)))) {
610 559
            continue;
611
        }
612
        $y = $n = array();
613
        foreach (explode(',', $a) as $v) {
614
            if (!preg_match('`^([a-z][^=/()]+)(?:\((.*?)\))?`i', $v, $m)) {
615
                continue;
616
            }
617
            if (($x = strtolower($m[1])) == '-*') {
618
                $n['*'] = 1;
619
                continue;
620
            }
621
            if ($x[0] == '-') {
622
                $n[substr($x, 1)] = 1;
623
                continue;
624
            }
625
            if (!isset($m[2])) {
626
                $y[$x] = 1;
627
                continue;
628
            }
629
            foreach (explode('/', $m[2]) as $m) {
630
                if (empty($m) or ($p = strpos($m, '=')) == 0 or $p < 5) {
631
                    $y[$x] = 1;
632
                    continue;
633
                }
634
                $y[$x][strtolower(substr($m, 0, $p))] = str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08"), array(";", "|", "~", " ", ",", "/", "(", ")"), substr($m, $p + 1));
635
            }
636 View Code Duplication
            if (isset($y[$x]['match']) && !hl_regex($y[$x]['match'])) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
637
                unset($y[$x]['match']);
638
            }
639 View Code Duplication
            if (isset($y[$x]['nomatch']) && !hl_regex($y[$x]['nomatch'])) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
640
                unset($y[$x]['nomatch']);
641
            }
642
        }
643
        if (!count($y) && !count($n)) {
644
            continue;
645
        }
646
        foreach (explode(',', substr($w, 0, $e)) as $v) {
647
            if (!strlen(($v = strtolower($v)))) {
648
                continue;
649
            }
650
            if (count($y)) {
651
                $s[$v] = $y;
652
            }
653
            if (count($n)) {
654
                $s[$v]['n'] = $n;
655
            }
656
        }
657
    }
658 559
    return $s;
659
}
660
661
function hl_tag($t) {
662
// tag/attribute handler
663 1637
    global $C;
664 1637
    $t = $t[0];
665
// invalid < >
666 1637
    if ($t == '< ') {
667
        return '&lt; ';
668
    }
669 1637
    if ($t == '>') {
670 200
        return '&gt;';
671
    }
672 1637
    if (!preg_match('`^<(/?)([a-zA-Z][a-zA-Z1-6]*)([^>]*?)\s?>$`m', $t, $m)) {
673 91
        return str_replace(array('<', '>'), array('&lt;', '&gt;'), $t);
674 1583
    } elseif (!isset($C['elements'][($e = strtolower($m[2]))])) {
675 721
        return (($C['keep_bad'] % 2) ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : '');
676
    }
677
// attr string
678 946
    $a = str_replace(array("\n", "\r", "\t"), ' ', trim($m[3]));
679
// tag transform
680 946
    static $eD = array('acronym' => 1, 'applet' => 1, 'big' => 1, 'center' => 1, 'dir' => 1, 'font' => 1, 'isindex' => 1, 's' => 1, 'strike' => 1, 'tt' => 1); // Deprecated
681 946
    if ($C['make_tag_strict'] && isset($eD[$e])) {
682 1
        $trt = hl_tag2($e, $a, $C['make_tag_strict']);
683 1
        if (!$e) {
684
            return (($C['keep_bad'] % 2) ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : '');
685
        }
686 1
    }
687
// close tag
688 946
    static $eE = array('area' => 1, 'br' => 1, 'col' => 1, 'command' => 1, 'embed' => 1, 'hr' => 1, 'img' => 1, 'input' => 1, 'isindex' => 1, 'keygen' => 1, 'link' => 1, 'meta' => 1, 'param' => 1, 'source' => 1, 'track' => 1, 'wbr' => 1); // Empty ele
689 946
    if (!empty($m[1])) {
690 311
        return (!isset($eE[$e]) ? (empty($C['hook_tag']) ? "</$e>" : $C['hook_tag']($e)) : (($C['keep_bad']) % 2 ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : ''));
691
    }
692
693
// open tag & attr
694 946
    static $aN = array('abbr' => array('td' => 1, 'th' => 1), 'accept' => array('form' => 1, 'input' => 1), 'accept-charset' => array('form' => 1), 'action' => array('form' => 1), 'align' => array('applet' => 1, 'caption' => 1, 'col' => 1, 'colgroup' => 1, 'div' => 1, 'embed' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hr' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'legend' => 1, 'object' => 1, 'p' => 1, 'table' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'allowfullscreen' => array('iframe' => 1), 'alt' => array('applet' => 1, 'area' => 1, 'img' => 1, 'input' => 1), 'archive' => array('applet' => 1, 'object' => 1), 'async' => array('script' => 1), 'autocomplete' => array('form' => 1, 'input' => 1), 'autofocus' => array('button' => 1, 'input' => 1, 'keygen' => 1, 'select' => 1, 'textarea' => 1), 'autoplay' => array('audio' => 1, 'video' => 1), 'axis' => array('td' => 1, 'th' => 1), 'bgcolor' => array('embed' => 1, 'table' => 1, 'td' => 1, 'th' => 1, 'tr' => 1), 'border' => array('img' => 1, 'object' => 1, 'table' => 1), 'bordercolor' => array('table' => 1, 'td' => 1, 'tr' => 1), 'cellpadding' => array('table' => 1), 'cellspacing' => array('table' => 1), 'challenge' => array('keygen' => 1), 'char' => array('col' => 1, 'colgroup' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'charoff' => array('col' => 1, 'colgroup' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'charset' => array('a' => 1, 'script' => 1), 'checked' => array('command' => 1, 'input' => 1), 'cite' => array('blockquote' => 1, 'del' => 1, 'ins' => 1, 'q' => 1), 'classid' => array('object' => 1), 'clear' => array('br' => 1), 'code' => array('applet' => 1), 'codebase' => array('applet' => 1, 'object' => 1), 'codetype' => array('object' => 1), 'color' => array('font' => 1), 'cols' => array('textarea' => 1), 'colspan' => array('td' => 1, 'th' => 1), 'compact' => array('dir' => 1, 'dl' => 1, 'menu' => 1, 'ol' => 1, 'ul' => 1), 'content' => array('meta' => 1), 'controls' => array('audio' => 1, 'video' => 1), 'coords' => array('a' => 1, 'area' => 1), 'crossorigin' => array('img' => 1), 'data' => array('object' => 1), 'datetime' => array('del' => 1, 'ins' => 1, 'time' => 1), 'declare' => array('object' => 1), 'default' => array('track' => 1), 'defer' => array('script' => 1), 'dirname' => array('input' => 1, 'textarea' => 1), 'disabled' => array('button' => 1, 'command' => 1, 'fieldset' => 1, 'input' => 1, 'keygen' => 1, 'optgroup' => 1, 'option' => 1, 'select' => 1, 'textarea' => 1), 'download' => array('a' => 1), 'enctype' => array('form' => 1), 'face' => array('font' => 1), 'flashvars' => array('embed' => 1), 'for' => array('label' => 1, 'output' => 1), 'form' => array('button' => 1, 'fieldset' => 1, 'input' => 1, 'keygen' => 1, 'label' => 1, 'object' => 1, 'output' => 1, 'select' => 1, 'textarea' => 1), 'formaction' => array('button' => 1, 'input' => 1), 'formenctype' => array('button' => 1, 'input' => 1), 'formmethod' => array('button' => 1, 'input' => 1), 'formnovalidate' => array('button' => 1, 'input' => 1), 'formtarget' => array('button' => 1, 'input' => 1), 'frame' => array('table' => 1), 'frameborder' => array('iframe' => 1), 'headers' => array('td' => 1, 'th' => 1), 'height' => array('applet' => 1, 'canvas' => 1, 'embed' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'object' => 1, 'td' => 1, 'th' => 1, 'video' => 1), 'high' => array('meter' => 1), 'href' => array('a' => 1, 'area' => 1, 'link' => 1), 'hreflang' => array('a' => 1, 'area' => 1, 'link' => 1), 'hspace' => array('applet' => 1, 'embed' => 1, 'img' => 1, 'object' => 1), 'icon' => array('command' => 1), 'ismap' => array('img' => 1, 'input' => 1), 'keyparams' => array('keygen' => 1), 'keytype' => array('keygen' => 1), 'kind' => array('track' => 1), 'label' => array('command' => 1, 'menu' => 1, 'option' => 1, 'optgroup' => 1, 'track' => 1), 'language' => array('script' => 1), 'list' => array('input' => 1), 'longdesc' => array('img' => 1, 'iframe' => 1), 'loop' => array('audio' => 1, 'video' => 1), 'low' => array('meter' => 1), 'marginheight' => array('iframe' => 1), 'marginwidth' => array('iframe' => 1), 'max' => array('input' => 1, 'meter' => 1, 'progress' => 1), 'maxlength' => array('input' => 1, 'textarea' => 1), 'media' => array('a' => 1, 'area' => 1, 'link' => 1, 'source' => 1, 'style' => 1), 'mediagroup' => array('audio' => 1, 'video' => 1), 'method' => array('form' => 1), 'min' => array('input' => 1, 'meter' => 1), 'model' => array('embed' => 1), 'multiple' => array('input' => 1, 'select' => 1), 'muted' => array('audio' => 1, 'video' => 1), 'name' => array('a' => 1, 'applet' => 1, 'button' => 1, 'embed' => 1, 'fieldset' => 1, 'form' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'keygen' => 1, 'map' => 1, 'object' => 1, 'output' => 1, 'param' => 1, 'select' => 1, 'textarea' => 1), 'nohref' => array('area' => 1), 'noshade' => array('hr' => 1), 'novalidate' => array('form' => 1), 'nowrap' => array('td' => 1, 'th' => 1), 'object' => array('applet' => 1), 'open' => array('details' => 1), 'optimum' => array('meter' => 1), 'pattern' => array('input' => 1), 'ping' => array('a' => 1, 'area' => 1), 'placeholder' => array('input' => 1, 'textarea' => 1), 'pluginspage' => array('embed' => 1), 'pluginurl' => array('embed' => 1), 'poster' => array('video' => 1), 'pqg' => array('keygen' => 1), 'preload' => array('audio' => 1, 'video' => 1), 'prompt' => array('isindex' => 1), 'pubdate' => array('time' => 1), 'radiogroup' => array('command' => 1), 'readonly' => array('input' => 1, 'textarea' => 1), 'rel' => array('a' => 1, 'area' => 1, 'link' => 1), 'required' => array('input' => 1, 'select' => 1, 'textarea' => 1), 'rev' => array('a' => 1), 'reversed' => array('ol' => 1), 'rows' => array('textarea' => 1), 'rowspan' => array('td' => 1, 'th' => 1), 'rules' => array('table' => 1), 'sandbox' => array('iframe' => 1), 'scope' => array('td' => 1, 'th' => 1), 'scoped' => array('style' => 1), 'scrolling' => array('iframe' => 1), 'seamless' => array('iframe' => 1), 'selected' => array('option' => 1), 'shape' => array('a' => 1, 'area' => 1), 'size' => array('font' => 1, 'hr' => 1, 'input' => 1, 'select' => 1), 'sizes' => array('link' => 1), 'span' => array('col' => 1, 'colgroup' => 1), 'src' => array('audio' => 1, 'embed' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'script' => 1, 'source' => 1, 'track' => 1, 'video' => 1), 'srcdoc' => array('iframe' => 1), 'srclang' => array('track' => 1), 'srcset' => array('img' => 1), 'standby' => array('object' => 1), 'start' => array('ol' => 1), 'step' => array('input' => 1), 'summary' => array('table' => 1), 'target' => array('a' => 1, 'area' => 1, 'form' => 1), 'type' => array('a' => 1, 'area' => 1, 'button' => 1, 'command' => 1, 'embed' => 1, 'input' => 1, 'li' => 1, 'link' => 1, 'menu' => 1, 'object' => 1, 'ol' => 1, 'param' => 1, 'script' => 1, 'source' => 1, 'style' => 1, 'ul' => 1), 'typemustmatch' => array('object' => 1), 'usemap' => array('img' => 1, 'input' => 1, 'object' => 1), 'valign' => array('col' => 1, 'colgroup' => 1, 'tbody' => 1, 'td' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1), 'value' => array('button' => 1, 'data' => 1, 'input' => 1, 'li' => 1, 'meter' => 1, 'option' => 1, 'param' => 1, 'progress' => 1), 'valuetype' => array('param' => 1), 'vspace' => array('applet' => 1, 'embed' => 1, 'img' => 1, 'object' => 1), 'width' => array('applet' => 1, 'canvas' => 1, 'col' => 1, 'colgroup' => 1, 'embed' => 1, 'hr' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'object' => 1, 'pre' => 1, 'table' => 1, 'td' => 1, 'th' => 1, 'video' => 1), 'wmode' => array('embed' => 1), 'wrap' => array('textarea' => 1)); // Ele-specific
695 946
    static $aNA = array('aria-activedescendant' => 1, 'aria-atomic' => 1, 'aria-autocomplete' => 1, 'aria-busy' => 1, 'aria-checked' => 1, 'aria-controls' => 1, 'aria-describedby' => 1, 'aria-disabled' => 1, 'aria-dropeffect' => 1, 'aria-expanded' => 1, 'aria-flowto' => 1, 'aria-grabbed' => 1, 'aria-haspopup' => 1, 'aria-hidden' => 1, 'aria-invalid' => 1, 'aria-label' => 1, 'aria-labelledby' => 1, 'aria-level' => 1, 'aria-live' => 1, 'aria-multiline' => 1, 'aria-multiselectable' => 1, 'aria-orientation' => 1, 'aria-owns' => 1, 'aria-posinset' => 1, 'aria-pressed' => 1, 'aria-readonly' => 1, 'aria-relevant' => 1, 'aria-required' => 1, 'aria-selected' => 1, 'aria-setsize' => 1, 'aria-sort' => 1, 'aria-valuemax' => 1, 'aria-valuemin' => 1, 'aria-valuenow' => 1, 'aria-valuetext' => 1); // ARIA
696 946
    static $aNE = array('allowfullscreen' => 1, 'checkbox' => 1, 'checked' => 1, 'command' => 1, 'compact' => 1, 'declare' => 1, 'defer' => 1, 'default' => 1, 'disabled' => 1, 'hidden' => 1, 'inert' => 1, 'ismap' => 1, 'itemscope' => 1, 'multiple' => 1, 'nohref' => 1, 'noresize' => 1, 'noshade' => 1, 'nowrap' => 1, 'open' => 1, 'radio' => 1, 'readonly' => 1, 'required' => 1, 'reversed' => 1, 'selected' => 1); // Empty
697 946
    static $aNO = array('onabort' => 1, 'onblur' => 1, 'oncanplay' => 1, 'oncanplaythrough' => 1, 'onchange' => 1, 'onclick' => 1, 'oncontextmenu' => 1, 'oncopy' => 1, 'oncuechange' => 1, 'oncut' => 1, 'ondblclick' => 1, 'ondrag' => 1, 'ondragend' => 1, 'ondragenter' => 1, 'ondragleave' => 1, 'ondragover' => 1, 'ondragstart' => 1, 'ondrop' => 1, 'ondurationchange' => 1, 'onemptied' => 1, 'onended' => 1, 'onerror' => 1, 'onfocus' => 1, 'onformchange' => 1, 'onforminput' => 1, 'oninput' => 1, 'oninvalid' => 1, 'onkeydown' => 1, 'onkeypress' => 1, 'onkeyup' => 1, 'onload' => 1, 'onloadeddata' => 1, 'onloadedmetadata' => 1, 'onloadstart' => 1, 'onlostpointercapture' => 1, 'onmousedown' => 1, 'onmousemove' => 1, 'onmouseout' => 1, 'onmouseover' => 1, 'onmouseup' => 1, 'onmousewheel' => 1, 'onpaste' => 1, 'onpause' => 1, 'onplay' => 1, 'onplaying' => 1, 'onpointercancel' => 1, 'ongotpointercapture' => 1, 'onpointerdown' => 1, 'onpointerenter' => 1, 'onpointerleave' => 1, 'onpointermove' => 1, 'onpointerout' => 1, 'onpointerover' => 1, 'onpointerup' => 1, 'onprogress' => 1, 'onratechange' => 1, 'onreadystatechange' => 1, 'onreset' => 1, 'onsearch' => 1, 'onscroll' => 1, 'onseeked' => 1, 'onseeking' => 1, 'onselect' => 1, 'onshow' => 1, 'onstalled' => 1, 'onsubmit' => 1, 'onsuspend' => 1, 'ontimeupdate' => 1, 'ontoggle' => 1, 'ontouchcancel' => 1, 'ontouchend' => 1, 'ontouchmove' => 1, 'ontouchstart' => 1, 'onvolumechange' => 1, 'onwaiting' => 1, 'onwheel' => 1); // Event
698 946
    static $aNP = array('action' => 1, 'cite' => 1, 'classid' => 1, 'codebase' => 1, 'data' => 1, 'href' => 1, 'itemtype' => 1, 'longdesc' => 1, 'model' => 1, 'pluginspage' => 1, 'pluginurl' => 1, 'src' => 1, 'srcset' => 1, 'usemap' => 1); // Need scheme check; excludes style, on*
699 946
    static $aNU = array('accesskey' => 1, 'class' => 1, 'contenteditable' => 1, 'contextmenu' => 1, 'dir' => 1, 'draggable' => 1, 'dropzone' => 1, 'hidden' => 1, 'id' => 1, 'inert' => 1, 'itemid' => 1, 'itemprop' => 1, 'itemref' => 1, 'itemscope' => 1, 'itemtype' => 1, 'lang' => 1, 'role' => 1, 'spellcheck' => 1, 'style' => 1, 'tabindex' => 1, 'title' => 1, 'translate' => 1, 'xmlns' => 1, 'xml:base' => 1, 'xml:lang' => 1, 'xml:space' => 1); // Univ; excludes on*, aria*
700
701 946
    if ($C['lc_std_val']) {
702
        // predef attr vals for $eAL & $aNE ele
703 946
        static $aNL = array('all' => 1, 'auto' => 1, 'baseline' => 1, 'bottom' => 1, 'button' => 1, 'captions' => 1, 'center' => 1, 'chapters' => 1, 'char' => 1, 'checkbox' => 1, 'circle' => 1, 'col' => 1, 'colgroup' => 1, 'color' => 1, 'cols' => 1, 'data' => 1, 'date' => 1, 'datetime' => 1, 'datetime-local' => 1, 'default' => 1, 'descriptions' => 1, 'email' => 1, 'file' => 1, 'get' => 1, 'groups' => 1, 'hidden' => 1, 'image' => 1, 'justify' => 1, 'left' => 1, 'ltr' => 1, 'metadata' => 1, 'middle' => 1, 'month' => 1, 'none' => 1, 'number' => 1, 'object' => 1, 'password' => 1, 'poly' => 1, 'post' => 1, 'preserve' => 1, 'radio' => 1, 'range' => 1, 'rect' => 1, 'ref' => 1, 'reset' => 1, 'right' => 1, 'row' => 1, 'rowgroup' => 1, 'rows' => 1, 'rtl' => 1, 'search' => 1, 'submit' => 1, 'subtitles' => 1, 'tel' => 1, 'text' => 1, 'time' => 1, 'top' => 1, 'url' => 1, 'week' => 1);
704 946
        static $eAL = array('a' => 1, 'area' => 1, 'bdo' => 1, 'button' => 1, 'col' => 1, 'fieldset' => 1, 'form' => 1, 'img' => 1, 'input' => 1, 'object' => 1, 'ol' => 1, 'optgroup' => 1, 'option' => 1, 'param' => 1, 'script' => 1, 'select' => 1, 'table' => 1, 'td' => 1, 'textarea' => 1, 'tfoot' => 1, 'th' => 1, 'thead' => 1, 'tr' => 1, 'track' => 1, 'xml:space' => 1);
705 946
        $lcase = isset($eAL[$e]) ? 1 : 0;
706 946
    }
707
708 946
    $depTr = 0;
709 946
    if ($C['no_deprecated_attr']) {
710
        // depr attr:applicable ele
711 946
        static $aND = array('align' => array('caption' => 1, 'div' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hr' => 1, 'img' => 1, 'input' => 1, 'legend' => 1, 'object' => 1, 'p' => 1, 'table' => 1), 'bgcolor' => array('table' => 1, 'td' => 1, 'th' => 1, 'tr' => 1), 'border' => array('object' => 1), 'bordercolor' => array('table' => 1, 'td' => 1, 'tr' => 1), 'cellspacing' => array('table' => 1), 'clear' => array('br' => 1), 'compact' => array('dl' => 1, 'ol' => 1, 'ul' => 1), 'height' => array('td' => 1, 'th' => 1), 'hspace' => array('img' => 1, 'object' => 1), 'language' => array('script' => 1), 'name' => array('a' => 1, 'form' => 1, 'iframe' => 1, 'img' => 1, 'map' => 1), 'noshade' => array('hr' => 1), 'nowrap' => array('td' => 1, 'th' => 1), 'size' => array('hr' => 1), 'vspace' => array('img' => 1, 'object' => 1), 'width' => array('hr' => 1, 'pre' => 1, 'table' => 1, 'td' => 1, 'th' => 1));
712 946
        static $eAD = array('a' => 1, 'br' => 1, 'caption' => 1, 'div' => 1, 'dl' => 1, 'form' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'hr' => 1, 'iframe' => 1, 'img' => 1, 'input' => 1, 'legend' => 1, 'map' => 1, 'object' => 1, 'ol' => 1, 'p' => 1, 'pre' => 1, 'script' => 1, 'table' => 1, 'td' => 1, 'th' => 1, 'tr' => 1, 'ul' => 1);
713 946
        $depTr = isset($eAD[$e]) ? 1 : 0;
714 946
    }
715
716
// attr name-vals
717 946
    if (strpos($a, "\x01") !== false) {
718
        $a = preg_replace('`\x01[^\x01]*\x01`', '', $a);
719
    } // No comment/CDATA sec
720 946
    $mode = 0;
721 946
    $a = trim($a, ' /');
722 946
    $aA = array();
723 946
    while (strlen($a)) {
724 909
        $w = 0;
725
        switch ($mode) {
726 909
            case 0: // Name
727 909
                if (preg_match('`^[a-zA-Z][^\s=/]+`', $a, $m)) {
728 891
                    $nm = strtolower($m[0]);
729 891
                    $w = $mode = 1;
730 891
                    $a = ltrim(substr_replace($a, '', 0, strlen($m[0])));
731 891
                }
732 909
                break;
733 891
            case 1:
734 891
                if ($a[0] == '=') { // =
735 891
                    $w = 1;
736 891
                    $mode = 2;
737 891
                    $a = ltrim($a, '= ');
738 891
                } else { // No val
739
                    $w = 1;
740
                    $mode = 0;
741
                    $a = ltrim($a);
742
                    $aA[$nm] = '';
0 ignored issues
show
Bug introduced by
The variable $nm does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
743
                }
744 891
                break;
745 891
            case 2: // Val
746 891
                if (preg_match('`^((?:"[^"]*")|(?:\'[^\']*\')|(?:\s*[^\s"\']+))(.*)`', $a, $m)) {
747 891
                    $a = ltrim($m[2]);
748 891
                    $m = $m[1];
749 891
                    $w = 1;
750 891
                    $mode = 0;
751 891
                    $aA[$nm] = trim(str_replace('<', '&lt;', ($m[0] == '"' or $m[0] == '\'') ? substr($m, 1, -1) : $m));
752 891
                }
753 891
                break;
754
        }
755 909
        if ($w == 0) { // Parse errs, deal with space, " & '
756 173
            $a = preg_replace('`^(?:"[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*`', '', $a);
757 173
            $mode = 0;
758 173
        }
759 909
    }
760 946
    if ($mode == 1) {
761 1
        $aA[$nm] = '';
762 1
    }
763
764
// clean attrs
765 946
    global $S;
766 946
    $rl = isset($S[$e]) ? $S[$e] : array();
767 946
    $a = array();
768 946
    $nfr = 0;
769 946
    $d = $C['deny_attribute'];
770 946
    foreach ($aA as $k => $v) {
771 891
        if (((isset($d['*']) ? isset($d[$k]) : !isset($d[$k])) && (isset($aN[$k][$e]) or isset($aNU[$k]) or (isset($aNO[$k]) && !isset($d['on*'])) or (isset($aNA[$k]) && !isset($d['aria*'])) or (!isset($d['data*']) && preg_match('`data-((?!xml)[^:]+$)`', $k))) && !isset($rl['n'][$k]) && !isset($rl['n']['*'])) or isset($rl[$k])) {
772 699
            if (isset($aNE[$k])) {
773 3
                $v = $k;
774 699
            } elseif (!empty($lcase) && (($e != 'button' or $e != 'input') or $k == 'type')) { // Rather loose but ?not cause issues
775 574
                $v = (isset($aNL[($v2 = strtolower($v))])) ? $v2 : $v;
776 574
            }
777 699
            if ($k == 'style' && !$C['style_pass']) {
778 40
                if (false !== strpos($v, '&#')) {
779 3
                    static $sC = array('&#x20;' => ' ', '&#32;' => ' ', '&#x45;' => 'e', '&#69;' => 'e', '&#x65;' => 'e', '&#101;' => 'e', '&#x58;' => 'x', '&#88;' => 'x', '&#x78;' => 'x', '&#120;' => 'x', '&#x50;' => 'p', '&#80;' => 'p', '&#x70;' => 'p', '&#112;' => 'p', '&#x53;' => 's', '&#83;' => 's', '&#x73;' => 's', '&#115;' => 's', '&#x49;' => 'i', '&#73;' => 'i', '&#x69;' => 'i', '&#105;' => 'i', '&#x4f;' => 'o', '&#79;' => 'o', '&#x6f;' => 'o', '&#111;' => 'o', '&#x4e;' => 'n', '&#78;' => 'n', '&#x6e;' => 'n', '&#110;' => 'n', '&#x55;' => 'u', '&#85;' => 'u', '&#x75;' => 'u', '&#117;' => 'u', '&#x52;' => 'r', '&#82;' => 'r', '&#x72;' => 'r', '&#114;' => 'r', '&#x4c;' => 'l', '&#76;' => 'l', '&#x6c;' => 'l', '&#108;' => 'l', '&#x28;' => '(', '&#40;' => '(', '&#x29;' => ')', '&#41;' => ')', '&#x20;' => ':', '&#32;' => ':', '&#x22;' => '"', '&#34;' => '"', '&#x27;' => "'", '&#39;' => "'", '&#x2f;' => '/', '&#47;' => '/', '&#x2a;' => '*', '&#42;' => '*', '&#x5c;' => '\\', '&#92;' => '\\');
780 3
                    $v = strtr($v, $sC);
781 3
                }
782 40
                $v = preg_replace_callback('`(url(?:\()(?: )*(?:\'|"|&(?:quot|apos);)?)(.+?)((?:\'|"|&(?:quot|apos);)?(?: )*(?:\)))`iS', 'hl_prot', $v);
783 40
                $v = !$C['css_expression'] ? preg_replace('`expression`i', ' ', preg_replace('`\\\\\S|(/|(%2f))(\*|(%2a))`i', ' ', $v)) : $v;
784 699
            } elseif (isset($aNP[$k]) or isset($aNO[$k])) {
785 550
                $v = str_replace("­", ' ', (strpos($v, '&') !== false ? str_replace(array('&#xad;', '&#173;', '&shy;'), ' ', $v) : $v)); # double-quoted char: soft-hyphen; appears here as "­" or hyphen or something else depending on viewing software
786 550
                if ($k == 'srcset') {
787
                    $v2 = '';
788
                    foreach (explode(',', $v) as $k1 => $v1) {
789
                        $v1 = explode(' ', ltrim($v1), 2);
790
                        $k1 = isset($v1[1]) ? trim($v1[1]) : '';
791
                        $v1 = trim($v1[0]);
792
                        if (isset($v1[0])) {
793
                            $v2 .= hl_prot($v1, $k).(empty($k1) ? '' : ' '.$k1).', ';
794
                        }
795
                    }
796
                    $v = trim($v2, ', ');
797
                }
798 550
                if ($k == 'itemtype') {
799
                    $v2 = '';
800
                    foreach (explode(' ', $v) as $v1) {
801
                        if (isset($v1[0])) {
802
                            $v2 .= hl_prot($v1, $k).' ';
803
                        }
804
                    }
805
                    $v = trim($v2, ' ');
806
                } else {
807 550
                $v = hl_prot($v, $k);
808
                }
809 550
                if ($k == 'href') { // X-spam
810 161
                    if ($C['anti_mail_spam'] && strpos($v, 'mailto:') === 0) {
811
                        $v = str_replace('@', htmlspecialchars($C['anti_mail_spam']), $v);
812 161
                    } elseif ($C['anti_link_spam']) {
813 101
                        $r1 = $C['anti_link_spam'][1];
814 101
                        if (!empty($r1) && preg_match($r1, $v)) {
815
                            continue;
816
                        }
817 101
                        $r0 = $C['anti_link_spam'][0];
818 101
                        if (!empty($r0) && preg_match($r0, $v)) {
819 101
                            if (isset($a['rel'])) {
820 42
                                if (!preg_match('`\bnofollow\b`i', $a['rel'])) {
821 13
                                    $a['rel'] .= ' nofollow';
822 13
                                }
823 101
                            } elseif (isset($aA['rel'])) {
824 1
                                if (!preg_match('`\bnofollow\b`i', $aA['rel'])) {
825
                                    $nfr = 1;
826
                                }
827 1
                            } else {
828 88
                                $a['rel'] = 'nofollow';
829
                            }
830 101
                        }
831 101
                    }
832 161
                }
833 550
            }
834 699
            if (isset($rl[$k]) && is_array($rl[$k]) && ($v = hl_attrval($k, $v, $rl[$k])) === 0) {
835
                continue;
836
            }
837 699
            $a[$k] = str_replace('"', '&quot;', $v);
838 699
        }
839 946
    }
840 946
    if ($nfr) {
841
        $a['rel'] = isset($a['rel']) ? $a['rel'].' nofollow' : 'nofollow';
842
    }
843
844
// rqd attr
845 946
    static $eAR = array('area' => array('alt' => 'area'), 'bdo' => array('dir' => 'ltr'), 'command' => array('label' => ''), 'form' => array('action' => ''), 'img' => array('src' => '', 'alt' => 'image'), 'map' => array('name' => ''), 'optgroup' => array('label' => ''), 'param' => array('name' => ''), 'style' => array('scoped' => ''), 'textarea' => array('rows' => '10', 'cols' => '50'));
846 946
    if (isset($eAR[$e])) {
847 497
        foreach ($eAR[$e] as $k => $v) {
848 497
            if (!isset($a[$k])) {
849 488
                $a[$k] = isset($v[0]) ? $v : $k;
850 488
            }
851 497
        }
852 497
    }
853
854
// depr attr
855 946
    if ($depTr) {
856 790
        $c = array();
857 790
        foreach ($a as $k => $v) {
858 650
            if ($k == 'style' or !isset($aND[$k][$e])) {
859 649
                continue;
860
            }
861 4
            $v = str_replace(array('\\', ':', ';', '&#'), '', $v);
862 4
            if ($k == 'align') {
863 1
                unset($a['align']);
864 1
                if ($e == 'img' && ($v == 'left' or $v == 'right')) {
865
                    $c[] = 'float: '.$v;
866 1
                } elseif (($e == 'div' or $e == 'table') && $v == 'center') {
867
                    $c[] = 'margin: auto';
868
                } else {
869 1
                    $c[] = 'text-align: '.$v;
870
                }
871 4
            } elseif ($k == 'bgcolor') {
872
                unset($a['bgcolor']);
873
                $c[] = 'background-color: '.$v;
874 3
            } elseif ($k == 'border') {
875
                unset($a['border']);
876
                $c[] = "border: {$v}px";
877 3
            } elseif ($k == 'bordercolor') {
878
                unset($a['bordercolor']);
879
                $c[] = 'border-color: '.$v;
880 3
            } elseif ($k == 'cellspacing') {
881
                unset($a['cellspacing']);
882
                $c[] = "border-spacing: {$v}px";
883 3 View Code Duplication
            } elseif ($k == 'clear') {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
884
                unset($a['clear']);
885
                $c[] = 'clear: '.($v != 'all' ? $v : 'both');
886 3
            } elseif ($k == 'compact') {
887
                unset($a['compact']);
888
                $c[] = 'font-size: 85%';
889 3
            } elseif ($k == 'height' or $k == 'width') {
890
                unset($a[$k]);
891
                $c[] = $k.': '.($v[0] != '*' ? $v.(ctype_digit($v) ? 'px' : '') : 'auto');
892 3
            } elseif ($k == 'hspace') {
893
                unset($a['hspace']);
894
                $c[] = "margin-left: {$v}px; margin-right: {$v}px";
895 3
            } elseif ($k == 'language' && !isset($a['type'])) {
896
                unset($a['language']);
897
                $a['type'] = 'text/'.strtolower($v);
898 3
            } elseif ($k == 'name') {
899 3
                if ($C['no_deprecated_attr'] == 2 or ($e != 'a' && $e != 'map')) {
900
                    unset($a['name']);
901
                }
902 3
                if (!isset($a['id']) && !preg_match('`\W`', $v)) {
903
                    $a['id'] = $v;
904
                }
905 3
            } elseif ($k == 'noshade') {
906
                unset($a['noshade']);
907
                $c[] = 'border-style: none; border: 0; background-color: gray; color: gray';
908
            } elseif ($k == 'nowrap') {
909
                unset($a['nowrap']);
910
                $c[] = 'white-space: nowrap';
911 View Code Duplication
            } elseif ($k == 'size') {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
912
                unset($a['size']);
913
                $c[] = 'size: '.$v.'px';
914
            } elseif ($k == 'vspace') {
915
                unset($a['vspace']);
916
                $c[] = "margin-top: {$v}px; margin-bottom: {$v}px";
917
            }
918 790
        }
919 790
        if (count($c)) {
920 1
            $c = implode('; ', $c);
921 1
            $a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;').'; '.$c.';' : $c.';';
922 1
        }
923 790
    }
924
// unique ID
925 946
    if ($C['unique_ids'] && isset($a['id'])) {
926
        if (preg_match('`\s`', ($id = $a['id'])) or (isset($GLOBALS['hl_Ids'][$id]) && $C['unique_ids'] == 1)) {
927
            unset($a['id']);
928
        } else {
929
            while (isset($GLOBALS['hl_Ids'][$id])) {
930
                $id = $C['unique_ids'].$id;
931
            }
932
            $GLOBALS['hl_Ids'][($a['id'] = $id)] = 1;
933
        }
934
    }
935
// xml:lang
936 946
    if ($C['xml:lang'] && isset($a['lang'])) {
937
        $a['xml:lang'] = isset($a['xml:lang']) ? $a['xml:lang'] : $a['lang'];
938
        if ($C['xml:lang'] == 2) {
939
            unset($a['lang']);
940
        }
941
    }
942
// for transformed tag
943 946
    if (!empty($trt)) {
944 1
        $a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;').'; '.$trt : $trt;
945 1
    }
946
// return with empty ele /
947 946
    if (empty($C['hook_tag'])) {
948 946
        $aA = '';
949 946
        foreach ($a as $k => $v) {
950 772
            $aA .= " {$k}=\"{$v}\"";
951 946
        }
952 946
        return "<{$e}{$aA}".(isset($eE[$e]) ? ' /' : '').'>';
953
    } else {
954
        return $C['hook_tag']($e, $a);
955
    }
956
}
957
958
function hl_tag2(&$e, &$a, $t = 1) {
959
// transform tag
960 1
    if ($e == 'big') {
961
        $e = 'span';
962
        return 'font-size: larger;';
963
    }
964 1
    if ($e == 's' or $e == 'strike') {
965
        $e = 'span';
966
        return 'text-decoration: line-through;';
967
    }
968 1
    if ($e == 'tt') {
969
        $e = 'code';
970
        return '';
971
    }
972 1
    if ($e == 'center') {
973
        $e = 'div';
974
        return 'text-align: center;';
975
    }
976 1
    static $fs = array('0' => 'xx-small', '1' => 'xx-small', '2' => 'small', '3' => 'medium', '4' => 'large', '5' => 'x-large', '6' => 'xx-large', '7' => '300%', '-1' => 'smaller', '-2' => '60%', '+1' => 'larger', '+2' => '150%', '+3' => '200%', '+4' => '300%');
977 1
    if ($e == 'font') {
978 1
        $a2 = '';
979 1
        while (preg_match('`(^|\s)(color|size)\s*=\s*(\'|")?(.+?)(\\3|\s|$)`i', $a, $m)) {
980 1
            $a = str_replace($m[0], ' ', $a);
981 1
            $a2 .= strtolower($m[2]) == 'color' ? (' color: '.str_replace('"', '\'', trim($m[4])).';') : (isset($fs[($m = trim($m[4]))]) ? ($a2 .= ' font-size: '.str_replace('"', '\'', $fs[$m]).';') : '');
982 1
        }
983 1
        while (preg_match('`(^|\s)face\s*=\s*(\'|")?([^=]+?)\\2`i', $a, $m) or preg_match('`(^|\s)face\s*=(\s*)(\S+)`i', $a, $m)) {
984
            $a = str_replace($m[0], ' ', $a);
985
            $a2 .= ' font-family: '.str_replace('"', '\'', trim($m[3])).';';
986
        }
987 1
        $e = 'span';
988 1
        return ltrim(str_replace('<', '', $a2));
989
    }
990
    if ($e == 'acronym') {
991
        $e = 'abbr';
992
        return '';
993
    }
994
    if ($e == 'dir') {
995
        $e = 'ul';
996
        return '';
997
    }
998
    if ($t == 2) {
999
        $e = 0;
1000
        return 0;
1001
    }
1002
    return '';
1003
}
1004
1005
function hl_tidy($t, $w, $p) {
1006
// tidy/compact HTM
1007
    if (strpos(' pre,script,textarea', "$p,")) {
1008
        return $t;
1009
    }
1010
    $t = preg_replace(array('`(<\w[^>]*(?<!/)>)\s+`', '`\s+`', '`(<\w[^>]*(?<!/)>) `'), array(' $1', ' ', '$1'), preg_replace_callback(array('`(<(!\[CDATA\[))(.+?)(\]\]>)`sm', '`(<(!--))(.+?)(-->)`sm', '`(<(pre|script|textarea)[^>]*?>)(.+?)(</\2>)`sm'), create_function('$m', 'return $m[1]. str_replace(array("<", ">", "\n", "\r", "\t", " "), array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), $m[3]). $m[4];'), $t));
1011
    if (($w = strtolower($w)) == -1) {
1012
        return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t);
1013
    }
1014
    $s = strpos(" $w", 't') ? "\t" : ' ';
1015
    $s = preg_match('`\d`', $w, $m) ? str_repeat($s, $m[0]) : str_repeat($s, ($s == "\t" ? 1 : 2));
1016
    $N = preg_match('`[ts]([1-9])`', $w, $m) ? $m[1] : 0;
1017
    $a = array('br' => 1);
1018
    $b = array('button' => 1, 'command' => 1, 'input' => 1, 'option' => 1, 'param' => 1, 'track' => 1);
1019
    $c = array('audio' => 1, 'canvas' => 1, 'caption' => 1, 'dd' => 1, 'dt' => 1, 'figcaption' => 1, 'h1' => 1, 'h2' => 1, 'h3' => 1, 'h4' => 1, 'h5' => 1, 'h6' => 1, 'isindex' => 1, 'label' => 1, 'legend' => 1, 'li' => 1, 'object' => 1, 'p' => 1, 'pre' => 1, 'style' => 1, 'summary' => 1, 'td' => 1, 'textarea' => 1, 'th' => 1, 'video' => 1);
1020
    $d = array('address' => 1, 'article' => 1, 'aside' => 1, 'blockquote' => 1, 'center' => 1, 'colgroup' => 1, 'datalist' => 1, 'details' => 1, 'dir' => 1, 'div' => 1, 'dl' => 1, 'fieldset' => 1, 'figure' => 1, 'footer' => 1, 'form' => 1, 'header' => 1, 'hgroup' => 1, 'hr' => 1, 'iframe' => 1, 'main' => 1, 'map' => 1, 'menu' => 1, 'nav' => 1, 'noscript' => 1, 'ol' => 1, 'optgroup' => 1, 'rbc' => 1, 'rtc' => 1, 'ruby' => 1, 'script' => 1, 'section' => 1, 'select' => 1, 'table' => 1, 'tbody' => 1, 'tfoot' => 1, 'thead' => 1, 'tr' => 1, 'ul' => 1);
1021
    $T = explode('<', $t);
1022
    $X = 1;
1023
    while ($X) {
1024
        $n = $N;
1025
        $t = $T;
1026
        ob_start();
1027
        if (isset($d[$p])) {
1028
            echo str_repeat($s, ++$n);
1029
        }
1030
        echo ltrim(array_shift($t));
1031
        for ($i = -1, $j = count($t); ++$i < $j;) {
1032
            $r = '';
1033
            list($e, $r) = explode('>', $t[$i]);
1034
            $x = $e[0] == '/' ? 0 : (substr($e, -1) == '/' ? 1 : ($e[0] != '!' ? 2 : -1));
1035
            $y = !$x ? ltrim($e, '/') : ($x > 0 ? substr($e, 0, strcspn($e, ' ')) : 0);
1036
            $e = "<$e>";
1037
            if (isset($d[$y])) {
1038
                if (!$x) {
1039
                    if ($n) {
1040
                        echo "\n", str_repeat($s, --$n), "$e\n", str_repeat($s, $n);
1041
                    } else {
1042
                        ++$N;
1043
                        ob_end_clean();
1044
                        continue 2;
1045
                    }
1046
                } else {
1047
                    echo "\n", str_repeat($s, $n), "$e\n", str_repeat($s, ($x != 1 ? ++$n : $n));
1048
                }
1049
                echo $r;
1050
                continue;
1051
            }
1052
            $f = "\n".str_repeat($s, $n);
1053
            if (isset($c[$y])) {
1054
                if (!$x) {
1055
                    echo $e, $f, $r;
1056
                } else {
1057
                    echo $f, $e, $r;
1058
                }
1059
            } elseif (isset($b[$y])) {
1060
                echo $f, $e, $r;
1061
            } elseif (isset($a[$y])) {
1062
                echo $e, $f, $r;
1063
            } elseif (!$y) {
1064
                echo $f, $e, $f, $r;
1065
            } else {
1066
                echo $e, $r;
1067
            }
1068
        }
1069
        $X = 0;
1070
    }
1071
    $t = str_replace(array("\n ", " \n"), "\n", preg_replace('`[\n]\s*?[\n]+`', "\n", ob_get_contents()));
1072
    ob_end_clean();
1073
    if (($l = strpos(" $w", 'r') ? (strpos(" $w", 'n') ? "\r\n" : "\r") : 0)) {
1074
        $t = str_replace("\n", $l, $t);
1075
    }
1076
    return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t);
1077
}
1078
1079
function hl_version() {
1080
// version
1081
    return '1.2.1.1';
1082
}
1083