Total Complexity | 64 |
Total Lines | 684 |
Duplicated Lines | 0 % |
Coverage | 99.47% |
Changes | 0 |
Complex classes like Str often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Str, and based on these observations, apply Extract Interface, too.
1 | <?php |
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9 | class Str implements PrimitiveInterface, StringableInterface |
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10 | { |
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11 | const PAD_RIGHT = STR_PAD_RIGHT; |
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12 | const PAD_LEFT = STR_PAD_LEFT; |
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13 | const PAD_BOTH = STR_PAD_BOTH; |
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14 | const PREG_NO_FLAGS = 0; |
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15 | const PREG_SPLIT_NO_EMPTY = PREG_SPLIT_NO_EMPTY; |
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16 | const PREG_SPLIT_DELIM_CAPTURE = PREG_SPLIT_DELIM_CAPTURE; |
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17 | const PREG_SPLIT_OFFSET_CAPTURE = PREG_SPLIT_OFFSET_CAPTURE; |
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18 | const PREG_OFFSET_CAPTURE = PREG_OFFSET_CAPTURE; |
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19 | |||
20 | private $value; |
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21 | private $encoding; |
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22 | |||
23 | 483 | public function __construct(string $value, string $encoding = null) |
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24 | { |
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25 | 483 | $this->value = $value; |
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26 | 483 | $this->encoding = $encoding ?? \mb_internal_encoding(); |
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27 | 483 | } |
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28 | |||
29 | 6 | public static function of(string $value, string $encoding = null): self |
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30 | { |
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31 | 6 | return new self($value, $encoding); |
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32 | } |
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33 | |||
34 | /** |
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35 | * {@inheritdoc} |
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36 | */ |
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37 | 3 | public function toPrimitive() |
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38 | { |
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39 | 3 | return $this->value; |
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40 | } |
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41 | |||
42 | /** |
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43 | * {@inheritdoc} |
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44 | */ |
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45 | 318 | public function __toString(): string |
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46 | { |
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47 | 318 | return $this->value; |
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48 | } |
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49 | |||
50 | 9 | public function encoding(): self |
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51 | { |
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52 | 9 | return new self($this->encoding); |
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53 | } |
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54 | |||
55 | 45 | public function toEncoding(string $encoding): self |
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56 | { |
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57 | 45 | return new self($this->value, $encoding); |
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58 | } |
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59 | |||
60 | /** |
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61 | * Split the string into a collection of ones |
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62 | * |
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63 | * @param string $delimiter |
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64 | * |
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65 | * @return StreamInterface<self> |
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66 | */ |
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67 | 21 | public function split(string $delimiter = null): StreamInterface |
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68 | { |
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69 | 21 | if (\is_null($delimiter) || $delimiter === '') { |
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70 | 9 | return $this->chunk(); |
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71 | } |
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72 | |||
73 | 15 | $parts = \explode($delimiter, $this->value); |
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74 | 15 | $stream = new Stream(self::class); |
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75 | |||
76 | 15 | foreach ($parts as $part) { |
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77 | 15 | $stream = $stream->add(new self($part, $this->encoding)); |
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78 | } |
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79 | |||
80 | 15 | return $stream; |
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81 | } |
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82 | |||
83 | /** |
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84 | * Returns a collection of the string splitted by the given chunk size |
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85 | * |
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86 | * @param int $size |
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87 | * |
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88 | * @return StreamInterface<self> |
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89 | */ |
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90 | 21 | public function chunk(int $size = 1): StreamInterface |
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91 | { |
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92 | 21 | $stream = new Stream(self::class); |
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93 | 21 | $string = $this; |
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94 | |||
95 | 21 | while ($string->length() > 0) { |
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96 | 21 | $stream = $stream->add($string->substring(0, $size)); |
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97 | 21 | $string = $string->substring($size); |
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98 | } |
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99 | |||
100 | 21 | return $stream; |
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101 | } |
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102 | |||
103 | /** |
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104 | * Returns the position of the first occurence of the string |
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105 | * |
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106 | * @param string $needle |
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107 | * @param int $offset |
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108 | * |
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109 | * @throws SubstringException If the string is not found |
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110 | * |
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111 | * @return int |
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112 | */ |
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113 | 18 | public function position(string $needle, int $offset = 0): int |
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114 | { |
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115 | 18 | $position = \mb_strpos($this->value, $needle, $offset, $this->encoding); |
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116 | |||
117 | 18 | if ($position === false) { |
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118 | 9 | throw new SubstringException(\sprintf( |
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119 | 9 | 'Substring "%s" not found', |
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120 | 9 | $needle |
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121 | )); |
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122 | } |
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123 | |||
124 | 15 | return (int) $position; |
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125 | } |
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126 | |||
127 | /** |
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128 | * Replace all occurences of the search string with the replacement one |
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129 | * |
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130 | * @param string $search |
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131 | * @param string $replacement |
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132 | * |
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133 | * @return self |
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134 | */ |
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135 | 6 | public function replace(string $search, string $replacement): self |
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136 | { |
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137 | 6 | if (!$this->contains($search)) { |
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138 | 3 | return $this; |
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139 | } |
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140 | |||
141 | return $this |
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142 | 6 | ->split($search) |
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143 | 6 | ->join($replacement); |
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144 | } |
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145 | |||
146 | /** |
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147 | * Returns the string following the given delimiter |
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148 | * |
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149 | * @param string $delimiter |
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150 | * |
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151 | * @throws SubstringException If the string is not found |
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152 | * |
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153 | * @return self |
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154 | */ |
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155 | 9 | public function str(string $delimiter): self |
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156 | { |
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157 | 9 | $sub = \mb_strstr($this->value, $delimiter, false, $this->encoding); |
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158 | |||
159 | 9 | if ($sub === false) { |
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160 | 3 | throw new SubstringException(\sprintf( |
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161 | 3 | 'Substring "%s" not found', |
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162 | 3 | $delimiter |
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163 | )); |
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164 | } |
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165 | |||
166 | 6 | return new self($sub, $this->encoding); |
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167 | } |
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168 | |||
169 | /** |
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170 | * Return the string in upper case |
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171 | * |
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172 | * @return self |
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173 | */ |
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174 | 9 | public function toUpper(): self |
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175 | { |
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176 | 9 | return new self(\mb_strtoupper($this->value), $this->encoding); |
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177 | } |
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178 | |||
179 | /** |
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180 | * Return the string in lower case |
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181 | * |
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182 | * @return self |
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183 | */ |
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184 | 6 | public function toLower(): self |
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185 | { |
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186 | 6 | return new self(\mb_strtolower($this->value), $this->encoding); |
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187 | } |
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188 | |||
189 | /** |
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190 | * Return the string length |
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191 | * |
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192 | * @return int |
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193 | */ |
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194 | 45 | public function length(): int |
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195 | { |
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196 | 45 | return \mb_strlen($this->value, $this->encoding); |
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197 | } |
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198 | |||
199 | 3 | public function empty(): bool |
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200 | { |
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201 | 3 | return $this->value === ''; |
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202 | } |
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203 | |||
204 | /** |
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205 | * Reverse the string |
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206 | * |
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207 | * @return self |
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208 | */ |
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209 | 3 | public function reverse(): self |
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210 | { |
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211 | return $this |
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212 | 3 | ->chunk() |
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213 | 3 | ->reverse() |
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214 | 3 | ->join(''); |
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215 | } |
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216 | |||
217 | /** |
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218 | * Pad to the right |
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219 | * |
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220 | * @param int $length |
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221 | * @param string $character |
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222 | * |
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223 | * @return self |
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224 | */ |
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225 | 3 | public function rightPad(int $length, string $character = ' '): self |
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226 | { |
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227 | 3 | return $this->pad($length, $character, self::PAD_RIGHT); |
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228 | } |
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229 | |||
230 | /** |
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231 | * Pad to the left |
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232 | * |
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233 | * @param int $length |
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234 | * @param string $character |
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235 | * |
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236 | * @return self |
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237 | */ |
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238 | 3 | public function leftPad(int $length, string $character = ' '): self |
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239 | { |
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240 | 3 | return $this->pad($length, $character, self::PAD_LEFT); |
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241 | } |
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242 | |||
243 | /** |
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244 | * Pad both sides |
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245 | * |
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246 | * @param int $length |
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247 | * @param string $character |
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248 | * |
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249 | * @return self |
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250 | */ |
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251 | 3 | public function uniPad(int $length, string $character = ' '): self |
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252 | { |
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253 | 3 | return $this->pad($length, $character, self::PAD_BOTH); |
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254 | } |
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255 | |||
256 | /** |
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257 | * Find length of initial segment not matching mask |
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258 | * |
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259 | * @param string $mask |
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260 | * @param int $start |
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261 | * @param int $length |
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262 | * |
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263 | * @return int |
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264 | */ |
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265 | 3 | public function cspn(string $mask, int $start = 0, int $length = null): int |
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266 | { |
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267 | 3 | if ($length === null) { |
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268 | 3 | $value = \strcspn($this->value, $mask, $start); |
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269 | } else { |
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270 | 3 | $value = \strcspn( |
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271 | 3 | $this->value, |
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272 | 3 | $mask, |
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273 | 3 | $start, |
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274 | 3 | $length |
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275 | ); |
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276 | } |
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277 | |||
278 | 3 | return (int) $value; |
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279 | } |
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280 | |||
281 | /** |
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282 | * Repeat the string n times |
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283 | * |
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284 | * @param int $repeat |
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285 | * |
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286 | * @return self |
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287 | */ |
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288 | 3 | public function repeat(int $repeat): self |
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289 | { |
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290 | 3 | return new self(\str_repeat($this->value, $repeat), $this->encoding); |
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291 | } |
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292 | |||
293 | /** |
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294 | * Shuffle the string |
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295 | * |
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296 | * @return self |
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297 | */ |
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298 | 6 | public function shuffle(): self |
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299 | { |
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300 | 6 | $parts = $this->chunk()->toPrimitive(); |
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301 | 6 | \shuffle($parts); |
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302 | |||
303 | 6 | return new self(\implode('', $parts), $this->encoding); |
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304 | } |
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305 | |||
306 | /** |
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307 | * Strip slashes |
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308 | * |
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309 | * @return self |
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310 | */ |
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311 | 3 | public function stripSlashes(): self |
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312 | { |
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313 | 3 | return new self(\stripslashes($this->value), $this->encoding); |
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314 | } |
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315 | |||
316 | /** |
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317 | * Strip C-like slashes |
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318 | * |
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319 | * @return self |
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320 | */ |
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321 | 3 | public function stripCSlashes(): self |
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322 | { |
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323 | 3 | return new self(\stripcslashes($this->value), $this->encoding); |
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324 | } |
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325 | |||
326 | /** |
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327 | * Return the word count |
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328 | * |
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329 | * @param string $charlist |
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330 | * |
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331 | * @return int |
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332 | */ |
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333 | 3 | public function wordCount(string $charlist = ''): int |
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334 | { |
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335 | 3 | return (int) \str_word_count( |
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336 | 3 | $this->value, |
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337 | 3 | 0, |
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338 | 3 | $charlist |
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339 | ); |
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340 | } |
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341 | |||
342 | /** |
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343 | * Return the collection of words |
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344 | * |
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345 | * @param string $charlist |
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346 | * |
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347 | * @return MapInterface<int, self> |
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348 | */ |
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349 | 3 | public function words(string $charlist = ''): MapInterface |
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350 | { |
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351 | 3 | $words = \str_word_count($this->value, 2, $charlist); |
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352 | 3 | $map = new Map('int', self::class); |
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353 | |||
354 | 3 | foreach ($words as $position => $word) { |
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355 | 3 | $map = $map->put($position, new self($word, $this->encoding)); |
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356 | } |
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357 | |||
358 | 3 | return $map; |
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359 | } |
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360 | |||
361 | /** |
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362 | * Split the string using a regular expression |
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363 | * |
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364 | * @param string $regex |
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365 | * @param int $limit |
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366 | * |
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367 | * @return StreamInterface<self> |
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368 | */ |
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369 | 6 | public function pregSplit(string $regex, int $limit = -1): StreamInterface |
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370 | { |
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371 | 6 | $strings = \preg_split($regex, $this->value, $limit); |
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372 | 6 | $stream = new Stream(self::class); |
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373 | |||
374 | 6 | foreach ($strings as $string) { |
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375 | 6 | $stream = $stream->add(new self($string, $this->encoding)); |
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376 | } |
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377 | |||
378 | 6 | return $stream; |
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379 | } |
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380 | |||
381 | /** |
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382 | * Check if the string match the given regular expression |
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383 | * |
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384 | * @param string $regex |
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385 | * @param int $offset |
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386 | * |
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387 | * @throws Exception If the regex failed |
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388 | * |
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389 | * @return bool |
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390 | */ |
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391 | 6 | public function matches(string $regex, int $offset = 0): bool |
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392 | { |
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393 | 6 | $matches = []; |
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394 | 6 | $value = \preg_match($regex, $this->value, $matches, 0, $offset); |
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395 | |||
396 | 6 | if ($value === false) { |
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397 | 3 | throw new RegexException('', \preg_last_error()); |
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398 | } |
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399 | |||
400 | 3 | return (bool) $value; |
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401 | } |
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402 | |||
403 | /** |
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404 | * Return a collection of the elements matching the regex |
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405 | * |
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406 | * @deprecated replaced by self::capture, to be removed in 3.0 |
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407 | * |
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408 | * @param string $regex |
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409 | * @param int $offset |
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410 | * @param int $flags |
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411 | * |
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412 | * @throws Exception If the regex failed |
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413 | * |
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414 | * @return MapInterface<scalar, self> |
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415 | */ |
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416 | 3 | public function getMatches( |
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417 | string $regex, |
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418 | int $offset = 0, |
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419 | int $flags = self::PREG_NO_FLAGS |
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420 | ): MapInterface { |
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421 | 3 | return $this->capture($regex, $offset, $flags); |
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422 | } |
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423 | |||
424 | /** |
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425 | * Return a collection of the elements matching the regex |
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426 | * |
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427 | * @param string $regex |
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428 | * @param int $offset |
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429 | * @param int $flags |
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430 | * |
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431 | * @throws Exception If the regex failed |
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432 | * |
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433 | * @return MapInterface<scalar, self> |
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434 | */ |
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435 | 9 | public function capture( |
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436 | string $regex, |
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437 | int $offset = 0, |
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438 | int $flags = self::PREG_NO_FLAGS |
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439 | ): MapInterface { |
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440 | 9 | $matches = []; |
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441 | 9 | $value = \preg_match( |
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442 | 9 | $regex, |
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443 | 9 | $this->value, |
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444 | 3 | $matches, |
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445 | 9 | $flags, |
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446 | 9 | $offset |
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447 | ); |
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448 | 9 | $map = new Map('scalar', self::class); |
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449 | |||
450 | 9 | foreach ($matches as $key => $match) { |
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451 | 6 | $map = $map->put($key, new self((string) $match, $this->encoding)); |
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452 | } |
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453 | |||
454 | 9 | if ($value === false) { |
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455 | 3 | throw new RegexException('', \preg_last_error()); |
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456 | } |
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457 | |||
458 | 6 | return $map; |
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459 | } |
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460 | |||
461 | /** |
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462 | * Replace part of the string by using a regular expression |
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463 | * |
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464 | * @param string $regex |
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465 | * @param string $replacement |
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466 | * @param int $limit |
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467 | * |
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468 | * @throws Exception If the regex failed |
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469 | * |
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470 | * @return self |
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471 | */ |
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472 | 3 | public function pregReplace( |
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473 | string $regex, |
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474 | string $replacement, |
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475 | int $limit = -1 |
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476 | ): self { |
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477 | 3 | $value = \preg_replace( |
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478 | 3 | $regex, |
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479 | 3 | $replacement, |
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480 | 3 | $this->value, |
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481 | 3 | $limit |
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482 | ); |
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483 | |||
484 | 3 | if ($value === null) { |
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485 | throw new RegexException('', \preg_last_error()); |
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486 | } |
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487 | |||
488 | 3 | return new self($value, $this->encoding); |
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489 | } |
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490 | |||
491 | /** |
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492 | * Return part of the string |
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493 | * |
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494 | * @param int $start |
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495 | * @param int $length |
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496 | * |
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497 | * @return self |
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498 | */ |
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499 | 39 | public function substring(int $start, int $length = null): self |
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500 | { |
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501 | 39 | if ($this->length() === 0) { |
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502 | 3 | return $this; |
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503 | } |
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504 | |||
505 | 39 | $sub = \mb_substr($this->value, $start, $length, $this->encoding); |
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506 | |||
507 | 39 | return new self($sub, $this->encoding); |
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508 | } |
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509 | |||
510 | /** |
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511 | * Return a formatted string |
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512 | * |
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513 | * @return self |
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514 | */ |
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515 | 3 | public function sprintf(...$values): self |
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516 | { |
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517 | 3 | return new self(\sprintf($this->value, ...$values), $this->encoding); |
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518 | } |
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519 | |||
520 | /** |
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521 | * Return the string with the first letter as uppercase |
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522 | * |
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523 | * @return self |
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524 | */ |
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525 | 6 | public function ucfirst(): self |
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526 | { |
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527 | return $this |
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528 | 6 | ->substring(0, 1) |
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529 | 6 | ->toUpper() |
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530 | 6 | ->append((string) $this->substring(1)); |
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531 | } |
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532 | |||
533 | /** |
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534 | * Return the string with the first letter as lowercase |
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535 | * |
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536 | * @return self |
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537 | */ |
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538 | 3 | public function lcfirst(): self |
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539 | { |
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540 | return $this |
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541 | 3 | ->substring(0, 1) |
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542 | 3 | ->toLower() |
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543 | 3 | ->append((string) $this->substring(1)); |
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544 | } |
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545 | |||
546 | /** |
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547 | * Return a CamelCase representation of the string |
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548 | * |
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549 | * @return self |
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550 | */ |
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551 | 3 | public function camelize(): self |
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560 | } |
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561 | |||
562 | /** |
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563 | * Append a string at the end of the current one |
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564 | * |
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565 | * @param string $string |
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566 | * |
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567 | * @return self |
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568 | */ |
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569 | 12 | public function append(string $string): self |
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570 | { |
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571 | 12 | return new self((string) $this.$string, $this->encoding); |
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572 | } |
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573 | |||
574 | /** |
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575 | * Prepend a string at the beginning of the current one |
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576 | * |
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577 | * @param string $string |
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578 | * |
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579 | * @return self |
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580 | */ |
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581 | 3 | public function prepend(string $string): self |
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584 | } |
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585 | |||
586 | /** |
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587 | * Check if the 2 strings are equal |
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588 | * |
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589 | * @param self $string |
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590 | * |
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591 | * @return bool |
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592 | */ |
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593 | 93 | public function equals(self $string): bool |
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594 | { |
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595 | 93 | return (string) $this === (string) $string; |
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596 | } |
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597 | |||
598 | /** |
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599 | * Trim the string |
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600 | * |
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601 | * @param string $mask |
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602 | * |
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603 | * @return self |
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604 | */ |
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605 | 3 | public function trim(string $mask = null): self |
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606 | { |
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607 | 3 | return new self( |
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608 | 3 | $mask === null ? \trim((string) $this) : \trim((string) $this, $mask), |
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609 | 3 | $this->encoding |
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610 | ); |
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611 | } |
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612 | |||
613 | /** |
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614 | * Trim the right side of the string |
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615 | * |
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616 | * @param string $mask |
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617 | * |
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618 | * @return self |
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619 | */ |
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620 | 3 | public function rightTrim(string $mask = null): self |
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621 | { |
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622 | 3 | return new self( |
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623 | 3 | $mask === null ? \rtrim((string) $this) : \rtrim((string) $this, $mask), |
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624 | 3 | $this->encoding |
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625 | ); |
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626 | } |
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627 | |||
628 | /** |
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629 | * Trim the left side of the string |
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630 | * |
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631 | * @param string $mask |
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632 | * |
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633 | * @return self |
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634 | */ |
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635 | 3 | public function leftTrim(string $mask = null): self |
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636 | { |
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637 | 3 | return new self( |
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638 | 3 | $mask === null ? \ltrim((string) $this) : \ltrim((string) $this, $mask), |
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639 | 3 | $this->encoding |
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640 | ); |
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641 | } |
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642 | |||
643 | /** |
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644 | * Check if the given string is present in the current one |
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645 | * |
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646 | * @param string $value |
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647 | * |
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648 | * @return bool |
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649 | */ |
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650 | 9 | public function contains(string $value): bool |
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651 | { |
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652 | try { |
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653 | 9 | $this->position($value); |
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654 | |||
655 | 9 | return true; |
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656 | 6 | } catch (SubstringException $e) { |
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657 | 6 | return false; |
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658 | } |
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659 | } |
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660 | |||
661 | /** |
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662 | * Quote regular expression characters |
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663 | * |
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664 | * @param string $delimiter |
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665 | * |
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666 | * @return self |
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667 | */ |
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668 | 3 | public function pregQuote(string $delimiter = ''): self |
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671 | } |
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672 | |||
673 | /** |
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674 | * Pad the string |
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675 | * |
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676 | * @param int $length |
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677 | * @param string $character |
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678 | * @param int $direction |
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679 | * |
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680 | * @return self |
||
681 | */ |
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682 | 3 | private function pad( |
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683 | int $length, |
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684 | string $character = ' ', |
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685 | int $direction = self::PAD_RIGHT |
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686 | ): self { |
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687 | 3 | return new self(\str_pad( |
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688 | 3 | $this->value, |
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689 | 3 | $length, |
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690 | 3 | $character, |
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691 | 3 | $direction |
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693 | } |
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694 | } |
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695 |