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- 27.04.2026
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SingleByteStringFunctions.php
001 <?php
002
003 /**
004 * @package s9e\TextFormatter
005 * @copyright Copyright (c) 2010-2022 The s9e authors
006 * @license http://www.opensource.org/licenses/mit-license.php The MIT License
007 */
008 namespace s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors;
009
010 class SingleByteStringFunctions extends AbstractConvertor
011 {
012 /**
013 * {@inheritdoc}
014 */
015 public function getMatchers(): array
016 {
017 $groups = 'Boolean:BooleanFunction:';
018
019 return [
020 $groups . 'Contains' => 'contains \\( ((?&String)) , ((?&String)) \\)',
021 $groups . 'EndsWith' => 'ends-with \\( ((?&String)) , ((?&String)) \\)',
022 $groups . 'NotContains' => 'not \\( contains \\( ((?&String)) , ((?&String)) \\) \\)',
023 $groups . 'NotEndsWith' => 'not \\( ends-with \\( ((?&String)) , ((?&String)) \\) \\)',
024 $groups . 'NotStartsWith' => 'not \\( starts-with \\( ((?&String)) , ((?&String)) \\) \\)',
025 $groups . 'StartsWith' => 'starts-with \\( ((?&String)) , ((?&String)) \\)',
026 'Number:StringLength' => 'string-length \\( ((?&String))? \\)'
027 ];
028 }
029
030 /**
031 * Convert a call to contains()
032 *
033 * @param string $haystack Expression for the haystack part of the call
034 * @param string $needle Expression for the needle part of the call
035 * @return string
036 */
037 public function parseContains($haystack, $needle)
038 {
039 return $this->generateContains($haystack, $needle, true);
040 }
041
042 /**
043 * Convert a call to ends-with()
044 *
045 * @param string $string Expression for the string part of the call
046 * @param string $substring Expression for the substring part of the call
047 * @return string
048 */
049 public function parseEndsWith($string, $substring)
050 {
051 return $this->generateEndsWith($string, $substring, true);
052 }
053
054 /**
055 * Convert a call to not(contains())
056 *
057 * @param string $haystack Expression for the haystack part of the call
058 * @param string $needle Expression for the needle part of the call
059 * @return string
060 */
061 public function parseNotContains($haystack, $needle)
062 {
063 return $this->generateContains($haystack, $needle, false);
064 }
065
066 /**
067 * Convert a call to not(ends-with())
068 *
069 * @param string $string Expression for the string part of the call
070 * @param string $substring Expression for the substring part of the call
071 * @return string
072 */
073 public function parseNotEndsWith($string, $substring)
074 {
075 return $this->generateEndsWith($string, $substring, false);
076 }
077
078 /**
079 * Convert a call to not(starts-with())
080 *
081 * @param string $string Expression for the string part of the call
082 * @param string $substring Expression for the substring part of the call
083 * @return string
084 */
085 public function parseNotStartsWith($string, $substring)
086 {
087 return $this->generateStartsWith($string, $substring, false);
088 }
089
090 /**
091 * Convert a call to starts-with()
092 *
093 * @param string $string Expression for the string part of the call
094 * @param string $substring Expression for the substring part of the call
095 * @return string
096 */
097 public function parseStartsWith($string, $substring)
098 {
099 return $this->generateStartsWith($string, $substring, true);
100 }
101
102 /**
103 * Convert a call to string-length()
104 *
105 * @param string $expr
106 * @return string
107 */
108 public function parseStringLength($expr = '.')
109 {
110 return "preg_match_all('(.)su'," . $this->recurse($expr) . ')';
111 }
112
113 /**
114 * Generate the code for a call to contains()
115 *
116 * @param string $haystack Expression for the haystack part of the call
117 * @param string $needle Expression for the needle part of the call
118 * @param bool $bool Return value for a positive match
119 * @return string
120 */
121 protected function generateContains($haystack, $needle, $bool)
122 {
123 $operator = ($bool) ? '!==' : '===';
124
125 return '(strpos(' . $this->recurse($haystack) . ',' . $this->recurse($needle) . ')' . $operator . 'false)';
126 }
127
128 /**
129 * Generate the code for a call to ends-with()
130 *
131 * @param string $string Expression for the string part of the call
132 * @param string $substring Expression for the substring part of the call
133 * @param bool $bool Return value for a positive match
134 * @return string
135 */
136 protected function generateEndsWith($string, $substring, $bool)
137 {
138 return (preg_match('(^(?:\'[^\']+\'|"[^"]+")$)D', $substring))
139 ? $this->generateEndsWithLiteral($string, $substring, $bool)
140 : $this->generateEndsWithExpression($string, $substring, $bool);
141 }
142
143 /**
144 * Generate the code for a call to ends-with() where the second argument is a literal string
145 *
146 * @param string $string Expression for the string part of the call
147 * @param string $substring Expression for a literal substring
148 * @param bool $bool Return value for a positive match
149 * @return string
150 */
151 protected function generateEndsWithLiteral($string, $substring, $bool)
152 {
153 $operator = ($bool) ? '===' : '!==';
154
155 return '(substr(' . $this->recurse($string) . ',-' . (strlen($substring) - 2) . ')' . $operator . $this->recurse($substring) . ')';
156 }
157
158 /**
159 * Generate the code for a call to ends-with()
160 *
161 * @param string $string Expression for the string part of the call
162 * @param string $substring Expression for the substring part of the call
163 * @param bool $bool Return value for a positive match
164 * @return string
165 */
166 protected function generateEndsWithExpression($string, $substring, $bool)
167 {
168 $operator = ($bool) ? '' : '!';
169
170 return $operator . "preg_match('('.preg_quote(" . $this->recurse($substring) . ").'$)D'," . $this->recurse($string) . ')';
171 }
172
173 /**
174 * Generate the code for a call to starts-with()
175 *
176 * @param string $string Expression for the string part of the call
177 * @param string $substring Expression for the substring part of the call
178 * @param bool $bool Return value for a positive match
179 * @return string
180 */
181 protected function generateStartsWith($string, $substring, $bool)
182 {
183 $operator = ($bool) ? '===' : '!==';
184
185 return '(strpos(' . $this->recurse($string) . ',' . $this->recurse($substring) . ')' . $operator . '0)';
186 }
187 }