ILIAS  release_5-4 Revision v5.4.26-12-gabc799a52e6
AttrDef.php
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1<?php
2
14{
15
21 public $minimized = false;
22
28 public $required = false;
29
37 abstract public function validate($string, $config, $context);
38
60 public function parseCDATA($string)
61 {
62 $string = trim($string);
63 $string = str_replace(array("\n", "\t", "\r"), ' ', $string);
64 return $string;
65 }
66
72 public function make($string)
73 {
74 // default implementation, return a flyweight of this object.
75 // If $string has an effect on the returned object (i.e. you
76 // need to overload this method), it is best
77 // to clone or instantiate new copies. (Instantiation is safer.)
78 return $this;
79 }
80
87 protected function mungeRgb($string)
88 {
89 $p = '\s*(\d+(\.\d+)?([%]?))\s*';
90
91 if (preg_match('/(rgba|hsla)\‍(/', $string)) {
92 return preg_replace('/(rgba|hsla)\‍('.$p.','.$p.','.$p.','.$p.'\‍)/', '\1(\2,\5,\8,\11)', $string);
93 }
94
95 return preg_replace('/(rgb|hsl)\‍('.$p.','.$p.','.$p.'\‍)/', '\1(\2,\5,\8)', $string);
96 }
97
102 protected function expandCSSEscape($string)
103 {
104 // flexibly parse it
105 $ret = '';
106 for ($i = 0, $c = strlen($string); $i < $c; $i++) {
107 if ($string[$i] === '\\') {
108 $i++;
109 if ($i >= $c) {
110 $ret .= '\\';
111 break;
112 }
113 if (ctype_xdigit($string[$i])) {
114 $code = $string[$i];
115 for ($a = 1, $i++; $i < $c && $a < 6; $i++, $a++) {
116 if (!ctype_xdigit($string[$i])) {
117 break;
118 }
119 $code .= $string[$i];
120 }
121 // We have to be extremely careful when adding
122 // new characters, to make sure we're not breaking
123 // the encoding.
124 $char = HTMLPurifier_Encoder::unichr(hexdec($code));
125 if (HTMLPurifier_Encoder::cleanUTF8($char) === '') {
126 continue;
127 }
128 $ret .= $char;
129 if ($i < $c && trim($string[$i]) !== '') {
130 $i--;
131 }
132 continue;
133 }
134 if ($string[$i] === "\n") {
135 continue;
136 }
137 }
138 $ret .= $string[$i];
139 }
140 return $ret;
141 }
142}
143
144// vim: et sw=4 sts=4
An exception for terminatinating execution or to throw for unit testing.
Base class for all validating attribute definitions.
Definition: AttrDef.php:14
parseCDATA($string)
Convenience method that parses a string as if it were CDATA.
Definition: AttrDef.php:60
$required
Tells us whether or not an HTML attribute is required.
Definition: AttrDef.php:28
$minimized
Tells us whether or not an HTML attribute is minimized.
Definition: AttrDef.php:21
mungeRgb($string)
Removes spaces from rgb(0, 0, 0) so that shorthand CSS properties work properly.
Definition: AttrDef.php:87
expandCSSEscape($string)
Parses a possibly escaped CSS string and returns the "pure" version of it.
Definition: AttrDef.php:102
make($string)
Factory method for creating this class from a string.
Definition: AttrDef.php:72
validate($string, $config, $context)
Validates and cleans passed string according to a definition.
static unichr($code)
Translates a Unicode codepoint into its corresponding UTF-8 character.
Definition: Encoder.php:315
static cleanUTF8($str, $force_php=false)
Cleans a UTF-8 string for well-formedness and SGML validity.
Definition: Encoder.php:134
$i
Definition: disco.tpl.php:19
$code
Definition: example_050.php:99
$config
Definition: bootstrap.php:15
$ret
Definition: parser.php:6
$context
Definition: webdav.php:25