1 | <?php |
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2 | /** |
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3 | * Main WordPress Formatting API. |
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4 | * |
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5 | * Handles many functions for formatting output. |
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6 | * |
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7 | * @package WordPress |
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8 | */ |
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9 | |
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10 | /** |
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11 | * Replaces common plain text characters into formatted entities |
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12 | * |
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13 | * As an example, |
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14 | * |
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15 | * 'cause today's effort makes it worth tomorrow's "holiday" ... |
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16 | * |
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17 | * Becomes: |
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18 | * |
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19 | * ’cause today’s effort makes it worth tomorrow’s “holiday” … |
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20 | * |
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21 | * Code within certain html blocks are skipped. |
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22 | * |
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23 | * Do not use this function before the 'init' action hook; everything will break. |
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24 | * |
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25 | * @since 0.71 |
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26 | * |
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27 | * @global array $wp_cockneyreplace Array of formatted entities for certain common phrases |
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28 | * @global array $shortcode_tags |
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29 | * @staticvar array $static_characters |
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30 | * @staticvar array $static_replacements |
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31 | * @staticvar array $dynamic_characters |
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32 | * @staticvar array $dynamic_replacements |
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33 | * @staticvar array $default_no_texturize_tags |
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34 | * @staticvar array $default_no_texturize_shortcodes |
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35 | * @staticvar bool $run_texturize |
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36 | * |
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37 | * @param string $text The text to be formatted |
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38 | * @param bool $reset Set to true for unit testing. Translated patterns will reset. |
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39 | * @return string The string replaced with html entities |
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40 | */ |
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41 | function wptexturize( $text, $reset = false ) { |
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42 | global $wp_cockneyreplace, $shortcode_tags; |
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43 | static $static_characters = null, |
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44 | $static_replacements = null, |
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45 | $dynamic_characters = null, |
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46 | $dynamic_replacements = null, |
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47 | $default_no_texturize_tags = null, |
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48 | $default_no_texturize_shortcodes = null, |
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49 | $run_texturize = true, |
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50 | $apos = null, |
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51 | $prime = null, |
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52 | $double_prime = null, |
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53 | $opening_quote = null, |
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54 | $closing_quote = null, |
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55 | $opening_single_quote = null, |
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56 | $closing_single_quote = null, |
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57 | $open_q_flag = '<!--oq-->', |
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58 | $open_sq_flag = '<!--osq-->', |
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59 | $apos_flag = '<!--apos-->'; |
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60 | |
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61 | // If there's nothing to do, just stop. |
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62 | if ( empty( $text ) || false === $run_texturize ) { |
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63 | return $text; |
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64 | } |
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65 | |
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66 | // Set up static variables. Run once only. |
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67 | if ( $reset || ! isset( $static_characters ) ) { |
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68 | /** |
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69 | * Filter whether to skip running wptexturize(). |
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70 | * |
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71 | * Passing false to the filter will effectively short-circuit wptexturize(). |
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72 | * returning the original text passed to the function instead. |
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73 | * |
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74 | * The filter runs only once, the first time wptexturize() is called. |
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75 | * |
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76 | * @since 4.0.0 |
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77 | * |
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78 | * @see wptexturize() |
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79 | * |
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80 | * @param bool $run_texturize Whether to short-circuit wptexturize(). |
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81 | */ |
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82 | $run_texturize = apply_filters( 'run_wptexturize', $run_texturize ); |
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83 | if ( false === $run_texturize ) { |
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84 | return $text; |
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85 | } |
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86 | |
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87 | /* translators: opening curly double quote */ |
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88 | $opening_quote = _x( '“', 'opening curly double quote' ); |
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89 | /* translators: closing curly double quote */ |
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90 | $closing_quote = _x( '”', 'closing curly double quote' ); |
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91 | |
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92 | /* translators: apostrophe, for example in 'cause or can't */ |
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93 | $apos = _x( '’', 'apostrophe' ); |
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94 | |
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95 | /* translators: prime, for example in 9' (nine feet) */ |
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96 | $prime = _x( '′', 'prime' ); |
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97 | /* translators: double prime, for example in 9" (nine inches) */ |
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98 | $double_prime = _x( '″', 'double prime' ); |
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99 | |
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100 | /* translators: opening curly single quote */ |
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101 | $opening_single_quote = _x( '‘', 'opening curly single quote' ); |
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102 | /* translators: closing curly single quote */ |
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103 | $closing_single_quote = _x( '’', 'closing curly single quote' ); |
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104 | |
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105 | /* translators: en dash */ |
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106 | $en_dash = _x( '–', 'en dash' ); |
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107 | /* translators: em dash */ |
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108 | $em_dash = _x( '—', 'em dash' ); |
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109 | |
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110 | $default_no_texturize_tags = array('pre', 'code', 'kbd', 'style', 'script', 'tt'); |
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111 | $default_no_texturize_shortcodes = array('code'); |
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112 | |
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113 | // if a plugin has provided an autocorrect array, use it |
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114 | if ( isset($wp_cockneyreplace) ) { |
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115 | $cockney = array_keys( $wp_cockneyreplace ); |
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116 | $cockneyreplace = array_values( $wp_cockneyreplace ); |
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117 | } else { |
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118 | /* translators: This is a comma-separated list of words that defy the syntax of quotations in normal use, |
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119 | * for example... 'We do not have enough words yet' ... is a typical quoted phrase. But when we write |
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120 | * lines of code 'til we have enough of 'em, then we need to insert apostrophes instead of quotes. |
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121 | */ |
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122 | $cockney = explode( ',', _x( "'tain't,'twere,'twas,'tis,'twill,'til,'bout,'nuff,'round,'cause,'em", |
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123 | 'Comma-separated list of words to texturize in your language' ) ); |
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124 | |
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125 | $cockneyreplace = explode( ',', _x( '’tain’t,’twere,’twas,’tis,’twill,’til,’bout,’nuff,’round,’cause,’em', |
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126 | 'Comma-separated list of replacement words in your language' ) ); |
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127 | } |
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128 | |
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129 | $static_characters = array_merge( array( '...', '``', '\'\'', ' (tm)' ), $cockney ); |
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130 | $static_replacements = array_merge( array( '…', $opening_quote, $closing_quote, ' ™' ), $cockneyreplace ); |
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131 | |
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132 | |
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133 | // Pattern-based replacements of characters. |
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134 | // Sort the remaining patterns into several arrays for performance tuning. |
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135 | $dynamic_characters = array( 'apos' => array(), 'quote' => array(), 'dash' => array() ); |
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136 | $dynamic_replacements = array( 'apos' => array(), 'quote' => array(), 'dash' => array() ); |
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137 | $dynamic = array(); |
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138 | $spaces = wp_spaces_regexp(); |
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139 | |
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140 | // '99' and '99" are ambiguous among other patterns; assume it's an abbreviated year at the end of a quotation. |
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141 | if ( "'" !== $apos || "'" !== $closing_single_quote ) { |
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142 | $dynamic[ '/\'(\d\d)\'(?=\Z|[.,:;!?)}\-\]]|>|' . $spaces . ')/' ] = $apos_flag . '$1' . $closing_single_quote; |
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143 | } |
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144 | if ( "'" !== $apos || '"' !== $closing_quote ) { |
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145 | $dynamic[ '/\'(\d\d)"(?=\Z|[.,:;!?)}\-\]]|>|' . $spaces . ')/' ] = $apos_flag . '$1' . $closing_quote; |
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146 | } |
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147 | |
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148 | // '99 '99s '99's (apostrophe) But never '9 or '99% or '999 or '99.0. |
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149 | if ( "'" !== $apos ) { |
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150 | $dynamic[ '/\'(?=\d\d(?:\Z|(?![%\d]|[.,]\d)))/' ] = $apos_flag; |
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151 | } |
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152 | |
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153 | // Quoted Numbers like '0.42' |
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154 | if ( "'" !== $opening_single_quote && "'" !== $closing_single_quote ) { |
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155 | $dynamic[ '/(?<=\A|' . $spaces . ')\'(\d[.,\d]*)\'/' ] = $open_sq_flag . '$1' . $closing_single_quote; |
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156 | } |
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157 | |
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158 | // Single quote at start, or preceded by (, {, <, [, ", -, or spaces. |
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159 | if ( "'" !== $opening_single_quote ) { |
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160 | $dynamic[ '/(?<=\A|[([{"\-]|<|' . $spaces . ')\'/' ] = $open_sq_flag; |
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161 | } |
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162 | |
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163 | // Apostrophe in a word. No spaces, double apostrophes, or other punctuation. |
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164 | if ( "'" !== $apos ) { |
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165 | $dynamic[ '/(?<!' . $spaces . ')\'(?!\Z|[.,:;!?"\'(){}[\]\-]|&[lg]t;|' . $spaces . ')/' ] = $apos_flag; |
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166 | } |
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167 | |
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168 | $dynamic_characters['apos'] = array_keys( $dynamic ); |
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169 | $dynamic_replacements['apos'] = array_values( $dynamic ); |
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170 | $dynamic = array(); |
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171 | |
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172 | // Quoted Numbers like "42" |
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173 | if ( '"' !== $opening_quote && '"' !== $closing_quote ) { |
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174 | $dynamic[ '/(?<=\A|' . $spaces . ')"(\d[.,\d]*)"/' ] = $open_q_flag . '$1' . $closing_quote; |
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175 | } |
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176 | |
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177 | // Double quote at start, or preceded by (, {, <, [, -, or spaces, and not followed by spaces. |
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178 | if ( '"' !== $opening_quote ) { |
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179 | $dynamic[ '/(?<=\A|[([{\-]|<|' . $spaces . ')"(?!' . $spaces . ')/' ] = $open_q_flag; |
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180 | } |
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181 | |
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182 | $dynamic_characters['quote'] = array_keys( $dynamic ); |
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183 | $dynamic_replacements['quote'] = array_values( $dynamic ); |
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184 | $dynamic = array(); |
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185 | |
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186 | // Dashes and spaces |
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187 | $dynamic[ '/---/' ] = $em_dash; |
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188 | $dynamic[ '/(?<=^|' . $spaces . ')--(?=$|' . $spaces . ')/' ] = $em_dash; |
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189 | $dynamic[ '/(?<!xn)--/' ] = $en_dash; |
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190 | $dynamic[ '/(?<=^|' . $spaces . ')-(?=$|' . $spaces . ')/' ] = $en_dash; |
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191 | |
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192 | $dynamic_characters['dash'] = array_keys( $dynamic ); |
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193 | $dynamic_replacements['dash'] = array_values( $dynamic ); |
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194 | } |
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195 | |
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196 | // Must do this every time in case plugins use these filters in a context sensitive manner |
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197 | /** |
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198 | * Filter the list of HTML elements not to texturize. |
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199 | * |
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200 | * @since 2.8.0 |
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201 | * |
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202 | * @param array $default_no_texturize_tags An array of HTML element names. |
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203 | */ |
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204 | $no_texturize_tags = apply_filters( 'no_texturize_tags', $default_no_texturize_tags ); |
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205 | /** |
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206 | * Filter the list of shortcodes not to texturize. |
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207 | * |
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208 | * @since 2.8.0 |
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209 | * |
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210 | * @param array $default_no_texturize_shortcodes An array of shortcode names. |
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211 | */ |
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212 | $no_texturize_shortcodes = apply_filters( 'no_texturize_shortcodes', $default_no_texturize_shortcodes ); |
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213 | |
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214 | $no_texturize_tags_stack = array(); |
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215 | $no_texturize_shortcodes_stack = array(); |
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216 | |
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217 | // Look for shortcodes and HTML elements. |
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218 | |
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219 | preg_match_all( '@\[/?([^<>&/\[\]\x00-\x20]++)@', $text, $matches ); |
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220 | $tagnames = array_intersect( array_keys( $shortcode_tags ), $matches[1] ); |
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221 | $found_shortcodes = ! empty( $tagnames ); |
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222 | $shortcode_regex = $found_shortcodes ? _get_wptexturize_shortcode_regex( $tagnames ) : ''; |
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223 | $regex = _get_wptexturize_split_regex( $shortcode_regex ); |
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224 | |
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225 | $textarr = preg_split( $regex, $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY ); |
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226 | |
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227 | foreach ( $textarr as &$curl ) { |
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228 | // Only call _wptexturize_pushpop_element if $curl is a delimiter. |
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229 | $first = $curl[0]; |
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230 | if ( '<' === $first ) { |
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231 | if ( '<!--' === substr( $curl, 0, 4 ) ) { |
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232 | // This is an HTML comment delimiter. |
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233 | continue; |
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234 | } else { |
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235 | // This is an HTML element delimiter. |
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236 | _wptexturize_pushpop_element( $curl, $no_texturize_tags_stack, $no_texturize_tags ); |
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237 | } |
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238 | |
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239 | } elseif ( '' === trim( $curl ) ) { |
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240 | // This is a newline between delimiters. Performance improves when we check this. |
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241 | continue; |
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242 | |
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243 | } elseif ( '[' === $first && $found_shortcodes && 1 === preg_match( '/^' . $shortcode_regex . '$/', $curl ) ) { |
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244 | // This is a shortcode delimiter. |
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245 | |
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246 | if ( '[[' !== substr( $curl, 0, 2 ) && ']]' !== substr( $curl, -2 ) ) { |
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247 | // Looks like a normal shortcode. |
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248 | _wptexturize_pushpop_element( $curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes ); |
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249 | } else { |
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250 | // Looks like an escaped shortcode. |
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251 | continue; |
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252 | } |
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253 | |
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254 | } elseif ( empty( $no_texturize_shortcodes_stack ) && empty( $no_texturize_tags_stack ) ) { |
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255 | // This is neither a delimiter, nor is this content inside of no_texturize pairs. Do texturize. |
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256 | |
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257 | $curl = str_replace( $static_characters, $static_replacements, $curl ); |
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258 | |
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259 | if ( false !== strpos( $curl, "'" ) ) { |
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260 | $curl = preg_replace( $dynamic_characters['apos'], $dynamic_replacements['apos'], $curl ); |
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261 | $curl = wptexturize_primes( $curl, "'", $prime, $open_sq_flag, $closing_single_quote ); |
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262 | $curl = str_replace( $apos_flag, $apos, $curl ); |
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263 | $curl = str_replace( $open_sq_flag, $opening_single_quote, $curl ); |
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264 | } |
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265 | if ( false !== strpos( $curl, '"' ) ) { |
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266 | $curl = preg_replace( $dynamic_characters['quote'], $dynamic_replacements['quote'], $curl ); |
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267 | $curl = wptexturize_primes( $curl, '"', $double_prime, $open_q_flag, $closing_quote ); |
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268 | $curl = str_replace( $open_q_flag, $opening_quote, $curl ); |
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269 | } |
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270 | if ( false !== strpos( $curl, '-' ) ) { |
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271 | $curl = preg_replace( $dynamic_characters['dash'], $dynamic_replacements['dash'], $curl ); |
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272 | } |
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273 | |
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274 | // 9x9 (times), but never 0x9999 |
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275 | if ( 1 === preg_match( '/(?<=\d)x\d/', $curl ) ) { |
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276 | // Searching for a digit is 10 times more expensive than for the x, so we avoid doing this one! |
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277 | $curl = preg_replace( '/\b(\d(?(?<=0)[\d\.,]+|[\d\.,]*))x(\d[\d\.,]*)\b/', '$1×$2', $curl ); |
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278 | } |
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279 | |
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280 | // Replace each & with & unless it already looks like an entity. |
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281 | $curl = preg_replace( '/&(?!#(?:\d+|x[a-f0-9]+);|[a-z1-4]{1,8};)/i', '&', $curl ); |
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282 | } |
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283 | } |
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284 | |
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285 | return implode( '', $textarr ); |
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286 | } |
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287 | |
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288 | /** |
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289 | * Implements a logic tree to determine whether or not "7'." represents seven feet, |
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290 | * then converts the special char into either a prime char or a closing quote char. |
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291 | * |
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292 | * @since 4.3.0 |
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293 | * |
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294 | * @param string $haystack The plain text to be searched. |
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295 | * @param string $needle The character to search for such as ' or ". |
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296 | * @param string $prime The prime char to use for replacement. |
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297 | * @param string $open_quote The opening quote char. Opening quote replacement must be |
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298 | * accomplished already. |
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299 | * @param string $close_quote The closing quote char to use for replacement. |
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300 | * @return string The $haystack value after primes and quotes replacements. |
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301 | */ |
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302 | function wptexturize_primes( $haystack, $needle, $prime, $open_quote, $close_quote ) { |
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303 | $spaces = wp_spaces_regexp(); |
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304 | $flag = '<!--wp-prime-or-quote-->'; |
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305 | $quote_pattern = "/$needle(?=\\Z|[.,:;!?)}\\-\\]]|>|" . $spaces . ")/"; |
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306 | $prime_pattern = "/(?<=\\d)$needle/"; |
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307 | $flag_after_digit = "/(?<=\\d)$flag/"; |
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308 | $flag_no_digit = "/(?<!\\d)$flag/"; |
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309 | |
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310 | $sentences = explode( $open_quote, $haystack ); |
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311 | |
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312 | foreach ( $sentences as $key => &$sentence ) { |
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313 | if ( false === strpos( $sentence, $needle ) ) { |
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314 | continue; |
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315 | } elseif ( 0 !== $key && 0 === substr_count( $sentence, $close_quote ) ) { |
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316 | $sentence = preg_replace( $quote_pattern, $flag, $sentence, -1, $count ); |
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317 | if ( $count > 1 ) { |
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318 | // This sentence appears to have multiple closing quotes. Attempt Vulcan logic. |
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319 | $sentence = preg_replace( $flag_no_digit, $close_quote, $sentence, -1, $count2 ); |
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320 | if ( 0 === $count2 ) { |
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321 | // Try looking for a quote followed by a period. |
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322 | $count2 = substr_count( $sentence, "$flag." ); |
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323 | if ( $count2 > 0 ) { |
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324 | // Assume the rightmost quote-period match is the end of quotation. |
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325 | $pos = strrpos( $sentence, "$flag." ); |
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326 | } else { |
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327 | // When all else fails, make the rightmost candidate a closing quote. |
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328 | // This is most likely to be problematic in the context of bug #18549. |
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329 | $pos = strrpos( $sentence, $flag ); |
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330 | } |
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331 | $sentence = substr_replace( $sentence, $close_quote, $pos, strlen( $flag ) ); |
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332 | } |
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333 | // Use conventional replacement on any remaining primes and quotes. |
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334 | $sentence = preg_replace( $prime_pattern, $prime, $sentence ); |
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335 | $sentence = preg_replace( $flag_after_digit, $prime, $sentence ); |
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336 | $sentence = str_replace( $flag, $close_quote, $sentence ); |
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337 | } elseif ( 1 == $count ) { |
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338 | // Found only one closing quote candidate, so give it priority over primes. |
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339 | $sentence = str_replace( $flag, $close_quote, $sentence ); |
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340 | $sentence = preg_replace( $prime_pattern, $prime, $sentence ); |
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341 | } else { |
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342 | // No closing quotes found. Just run primes pattern. |
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343 | $sentence = preg_replace( $prime_pattern, $prime, $sentence ); |
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344 | } |
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345 | } else { |
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346 | $sentence = preg_replace( $prime_pattern, $prime, $sentence ); |
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347 | $sentence = preg_replace( $quote_pattern, $close_quote, $sentence ); |
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348 | } |
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349 | if ( '"' == $needle && false !== strpos( $sentence, '"' ) ) { |
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350 | $sentence = str_replace( '"', $close_quote, $sentence ); |
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351 | } |
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352 | } |
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353 | |
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354 | return implode( $open_quote, $sentences ); |
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355 | } |
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356 | |
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357 | /** |
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358 | * Search for disabled element tags. Push element to stack on tag open and pop |
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359 | * on tag close. |
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360 | * |
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361 | * Assumes first char of $text is tag opening and last char is tag closing. |
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362 | * Assumes second char of $text is optionally '/' to indicate closing as in </html>. |
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363 | * |
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364 | * @since 2.9.0 |
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365 | * @access private |
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366 | * |
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367 | * @param string $text Text to check. Must be a tag like `<html>` or `[shortcode]`. |
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368 | * @param array $stack List of open tag elements. |
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369 | * @param array $disabled_elements The tag names to match against. Spaces are not allowed in tag names. |
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370 | */ |
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371 | function _wptexturize_pushpop_element( $text, &$stack, $disabled_elements ) { |
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372 | // Is it an opening tag or closing tag? |
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373 | if ( '/' !== $text[1] ) { |
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374 | $opening_tag = true; |
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375 | $name_offset = 1; |
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376 | } elseif ( 0 == count( $stack ) ) { |
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377 | // Stack is empty. Just stop. |
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378 | return; |
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379 | } else { |
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380 | $opening_tag = false; |
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381 | $name_offset = 2; |
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382 | } |
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383 | |
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384 | // Parse out the tag name. |
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385 | $space = strpos( $text, ' ' ); |
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386 | if ( false === $space ) { |
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387 | $space = -1; |
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388 | } else { |
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389 | $space -= $name_offset; |
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390 | } |
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391 | $tag = substr( $text, $name_offset, $space ); |
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392 | |
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393 | // Handle disabled tags. |
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394 | if ( in_array( $tag, $disabled_elements ) ) { |
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395 | if ( $opening_tag ) { |
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396 | /* |
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397 | * This disables texturize until we find a closing tag of our type |
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398 | * (e.g. <pre>) even if there was invalid nesting before that |
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399 | * |
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400 | * Example: in the case <pre>sadsadasd</code>"baba"</pre> |
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401 | * "baba" won't be texturize |
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402 | */ |
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403 | |
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404 | array_push( $stack, $tag ); |
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405 | } elseif ( end( $stack ) == $tag ) { |
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406 | array_pop( $stack ); |
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407 | } |
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408 | } |
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409 | } |
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410 | |
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411 | /** |
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412 | * Replaces double line-breaks with paragraph elements. |
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413 | * |
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414 | * A group of regex replaces used to identify text formatted with newlines and |
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415 | * replace double line-breaks with HTML paragraph tags. The remaining line-breaks |
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416 | * after conversion become <<br />> tags, unless $br is set to '0' or 'false'. |
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417 | * |
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418 | * @since 0.71 |
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419 | * |
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420 | * @param string $pee The text which has to be formatted. |
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421 | * @param bool $br Optional. If set, this will convert all remaining line-breaks |
---|
422 | * after paragraphing. Default true. |
---|
423 | * @return string Text which has been converted into correct paragraph tags. |
---|
424 | */ |
---|
425 | function wpautop( $pee, $br = true ) { |
---|
426 | $pre_tags = array(); |
---|
427 | |
---|
428 | if ( trim($pee) === '' ) |
---|
429 | return ''; |
---|
430 | |
---|
431 | // Just to make things a little easier, pad the end. |
---|
432 | $pee = $pee . "\n"; |
---|
433 | |
---|
434 | /* |
---|
435 | * Pre tags shouldn't be touched by autop. |
---|
436 | * Replace pre tags with placeholders and bring them back after autop. |
---|
437 | */ |
---|
438 | if ( strpos($pee, '<pre') !== false ) { |
---|
439 | $pee_parts = explode( '</pre>', $pee ); |
---|
440 | $last_pee = array_pop($pee_parts); |
---|
441 | $pee = ''; |
---|
442 | $i = 0; |
---|
443 | |
---|
444 | foreach ( $pee_parts as $pee_part ) { |
---|
445 | $start = strpos($pee_part, '<pre'); |
---|
446 | |
---|
447 | // Malformed html? |
---|
448 | if ( $start === false ) { |
---|
449 | $pee .= $pee_part; |
---|
450 | continue; |
---|
451 | } |
---|
452 | |
---|
453 | $name = "<pre wp-pre-tag-$i></pre>"; |
---|
454 | $pre_tags[$name] = substr( $pee_part, $start ) . '</pre>'; |
---|
455 | |
---|
456 | $pee .= substr( $pee_part, 0, $start ) . $name; |
---|
457 | $i++; |
---|
458 | } |
---|
459 | |
---|
460 | $pee .= $last_pee; |
---|
461 | } |
---|
462 | // Change multiple <br>s into two line breaks, which will turn into paragraphs. |
---|
463 | $pee = preg_replace('|<br\s*/?>\s*<br\s*/?>|', "\n\n", $pee); |
---|
464 | |
---|
465 | $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)'; |
---|
466 | |
---|
467 | // Add a single line break above block-level opening tags. |
---|
468 | $pee = preg_replace('!(<' . $allblocks . '[\s/>])!', "\n$1", $pee); |
---|
469 | |
---|
470 | // Add a double line break below block-level closing tags. |
---|
471 | $pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee); |
---|
472 | |
---|
473 | // Standardize newline characters to "\n". |
---|
474 | $pee = str_replace(array("\r\n", "\r"), "\n", $pee); |
---|
475 | |
---|
476 | // Find newlines in all elements and add placeholders. |
---|
477 | $pee = wp_replace_in_html_tags( $pee, array( "\n" => " <!-- wpnl --> " ) ); |
---|
478 | |
---|
479 | // Collapse line breaks before and after <option> elements so they don't get autop'd. |
---|
480 | if ( strpos( $pee, '<option' ) !== false ) { |
---|
481 | $pee = preg_replace( '|\s*<option|', '<option', $pee ); |
---|
482 | $pee = preg_replace( '|</option>\s*|', '</option>', $pee ); |
---|
483 | } |
---|
484 | |
---|
485 | /* |
---|
486 | * Collapse line breaks inside <object> elements, before <param> and <embed> elements |
---|
487 | * so they don't get autop'd. |
---|
488 | */ |
---|
489 | if ( strpos( $pee, '</object>' ) !== false ) { |
---|
490 | $pee = preg_replace( '|(<object[^>]*>)\s*|', '$1', $pee ); |
---|
491 | $pee = preg_replace( '|\s*</object>|', '</object>', $pee ); |
---|
492 | $pee = preg_replace( '%\s*(</?(?:param|embed)[^>]*>)\s*%', '$1', $pee ); |
---|
493 | } |
---|
494 | |
---|
495 | /* |
---|
496 | * Collapse line breaks inside <audio> and <video> elements, |
---|
497 | * before and after <source> and <track> elements. |
---|
498 | */ |
---|
499 | if ( strpos( $pee, '<source' ) !== false || strpos( $pee, '<track' ) !== false ) { |
---|
500 | $pee = preg_replace( '%([<\[](?:audio|video)[^>\]]*[>\]])\s*%', '$1', $pee ); |
---|
501 | $pee = preg_replace( '%\s*([<\[]/(?:audio|video)[>\]])%', '$1', $pee ); |
---|
502 | $pee = preg_replace( '%\s*(<(?:source|track)[^>]*>)\s*%', '$1', $pee ); |
---|
503 | } |
---|
504 | |
---|
505 | // Remove more than two contiguous line breaks. |
---|
506 | $pee = preg_replace("/\n\n+/", "\n\n", $pee); |
---|
507 | |
---|
508 | // Split up the contents into an array of strings, separated by double line breaks. |
---|
509 | $pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY); |
---|
510 | |
---|
511 | // Reset $pee prior to rebuilding. |
---|
512 | $pee = ''; |
---|
513 | |
---|
514 | // Rebuild the content as a string, wrapping every bit with a <p>. |
---|
515 | foreach ( $pees as $tinkle ) { |
---|
516 | $pee .= '<p>' . trim($tinkle, "\n") . "</p>\n"; |
---|
517 | } |
---|
518 | |
---|
519 | // Under certain strange conditions it could create a P of entirely whitespace. |
---|
520 | $pee = preg_replace('|<p>\s*</p>|', '', $pee); |
---|
521 | |
---|
522 | // Add a closing <p> inside <div>, <address>, or <form> tag if missing. |
---|
523 | $pee = preg_replace('!<p>([^<]+)</(div|address|form)>!', "<p>$1</p></$2>", $pee); |
---|
524 | |
---|
525 | // If an opening or closing block element tag is wrapped in a <p>, unwrap it. |
---|
526 | $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); |
---|
527 | |
---|
528 | // In some cases <li> may get wrapped in <p>, fix them. |
---|
529 | $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); |
---|
530 | |
---|
531 | // If a <blockquote> is wrapped with a <p>, move it inside the <blockquote>. |
---|
532 | $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee); |
---|
533 | $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee); |
---|
534 | |
---|
535 | // If an opening or closing block element tag is preceded by an opening <p> tag, remove it. |
---|
536 | $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee); |
---|
537 | |
---|
538 | // If an opening or closing block element tag is followed by a closing <p> tag, remove it. |
---|
539 | $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); |
---|
540 | |
---|
541 | // Optionally insert line breaks. |
---|
542 | if ( $br ) { |
---|
543 | // Replace newlines that shouldn't be touched with a placeholder. |
---|
544 | $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', '_autop_newline_preservation_helper', $pee); |
---|
545 | |
---|
546 | // Normalize <br> |
---|
547 | $pee = str_replace( array( '<br>', '<br/>' ), '<br />', $pee ); |
---|
548 | |
---|
549 | // Replace any new line characters that aren't preceded by a <br /> with a <br />. |
---|
550 | $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); |
---|
551 | |
---|
552 | // Replace newline placeholders with newlines. |
---|
553 | $pee = str_replace('<WPPreserveNewline />', "\n", $pee); |
---|
554 | } |
---|
555 | |
---|
556 | // If a <br /> tag is after an opening or closing block tag, remove it. |
---|
557 | $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee); |
---|
558 | |
---|
559 | // If a <br /> tag is before a subset of opening or closing block tags, remove it. |
---|
560 | $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee); |
---|
561 | $pee = preg_replace( "|\n</p>$|", '</p>', $pee ); |
---|
562 | |
---|
563 | // Replace placeholder <pre> tags with their original content. |
---|
564 | if ( !empty($pre_tags) ) |
---|
565 | $pee = str_replace(array_keys($pre_tags), array_values($pre_tags), $pee); |
---|
566 | |
---|
567 | // Restore newlines in all elements. |
---|
568 | if ( false !== strpos( $pee, '<!-- wpnl -->' ) ) { |
---|
569 | $pee = str_replace( array( ' <!-- wpnl --> ', '<!-- wpnl -->' ), "\n", $pee ); |
---|
570 | } |
---|
571 | |
---|
572 | return $pee; |
---|
573 | } |
---|
574 | |
---|
575 | /** |
---|
576 | * Separate HTML elements and comments from the text. |
---|
577 | * |
---|
578 | * @since 4.2.4 |
---|
579 | * |
---|
580 | * @param string $input The text which has to be formatted. |
---|
581 | * @return array The formatted text. |
---|
582 | */ |
---|
583 | function wp_html_split( $input ) { |
---|
584 | return preg_split( get_html_split_regex(), $input, -1, PREG_SPLIT_DELIM_CAPTURE ); |
---|
585 | } |
---|
586 | |
---|
587 | /** |
---|
588 | * Retrieve the regular expression for an HTML element. |
---|
589 | * |
---|
590 | * @since 4.4.0 |
---|
591 | * |
---|
592 | * @return string The regular expression |
---|
593 | */ |
---|
594 | function get_html_split_regex() { |
---|
595 | static $regex; |
---|
596 | |
---|
597 | if ( ! isset( $regex ) ) { |
---|
598 | $comments = |
---|
599 | '!' // Start of comment, after the <. |
---|
600 | . '(?:' // Unroll the loop: Consume everything until --> is found. |
---|
601 | . '-(?!->)' // Dash not followed by end of comment. |
---|
602 | . '[^\-]*+' // Consume non-dashes. |
---|
603 | . ')*+' // Loop possessively. |
---|
604 | . '(?:-->)?'; // End of comment. If not found, match all input. |
---|
605 | |
---|
606 | $cdata = |
---|
607 | '!\[CDATA\[' // Start of comment, after the <. |
---|
608 | . '[^\]]*+' // Consume non-]. |
---|
609 | . '(?:' // Unroll the loop: Consume everything until ]]> is found. |
---|
610 | . '](?!]>)' // One ] not followed by end of comment. |
---|
611 | . '[^\]]*+' // Consume non-]. |
---|
612 | . ')*+' // Loop possessively. |
---|
613 | . '(?:]]>)?'; // End of comment. If not found, match all input. |
---|
614 | |
---|
615 | $escaped = |
---|
616 | '(?=' // Is the element escaped? |
---|
617 | . '!--' |
---|
618 | . '|' |
---|
619 | . '!\[CDATA\[' |
---|
620 | . ')' |
---|
621 | . '(?(?=!-)' // If yes, which type? |
---|
622 | . $comments |
---|
623 | . '|' |
---|
624 | . $cdata |
---|
625 | . ')'; |
---|
626 | |
---|
627 | $regex = |
---|
628 | '/(' // Capture the entire match. |
---|
629 | . '<' // Find start of element. |
---|
630 | . '(?' // Conditional expression follows. |
---|
631 | . $escaped // Find end of escaped element. |
---|
632 | . '|' // ... else ... |
---|
633 | . '[^>]*>?' // Find end of normal element. |
---|
634 | . ')' |
---|
635 | . ')/'; |
---|
636 | } |
---|
637 | |
---|
638 | return $regex; |
---|
639 | } |
---|
640 | |
---|
641 | /** |
---|
642 | * Retrieve the combined regular expression for HTML and shortcodes. |
---|
643 | * |
---|
644 | * @access private |
---|
645 | * @ignore |
---|
646 | * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap. |
---|
647 | * @since 4.4.0 |
---|
648 | * |
---|
649 | * @param string $shortcode_regex The result from _get_wptexturize_shortcode_regex(). Optional. |
---|
650 | * @return string The regular expression |
---|
651 | */ |
---|
652 | function _get_wptexturize_split_regex( $shortcode_regex = '' ) { |
---|
653 | static $html_regex; |
---|
654 | |
---|
655 | if ( ! isset( $html_regex ) ) { |
---|
656 | $comment_regex = |
---|
657 | '!' // Start of comment, after the <. |
---|
658 | . '(?:' // Unroll the loop: Consume everything until --> is found. |
---|
659 | . '-(?!->)' // Dash not followed by end of comment. |
---|
660 | . '[^\-]*+' // Consume non-dashes. |
---|
661 | . ')*+' // Loop possessively. |
---|
662 | . '(?:-->)?'; // End of comment. If not found, match all input. |
---|
663 | |
---|
664 | $html_regex = // Needs replaced with wp_html_split() per Shortcode API Roadmap. |
---|
665 | '<' // Find start of element. |
---|
666 | . '(?(?=!--)' // Is this a comment? |
---|
667 | . $comment_regex // Find end of comment. |
---|
668 | . '|' |
---|
669 | . '[^>]*>?' // Find end of element. If not found, match all input. |
---|
670 | . ')'; |
---|
671 | } |
---|
672 | |
---|
673 | if ( empty( $shortcode_regex ) ) { |
---|
674 | $regex = '/(' . $html_regex . ')/'; |
---|
675 | } else { |
---|
676 | $regex = '/(' . $html_regex . '|' . $shortcode_regex . ')/'; |
---|
677 | } |
---|
678 | |
---|
679 | return $regex; |
---|
680 | } |
---|
681 | |
---|
682 | /** |
---|
683 | * Retrieve the regular expression for shortcodes. |
---|
684 | * |
---|
685 | * @access private |
---|
686 | * @ignore |
---|
687 | * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap. |
---|
688 | * @since 4.4.0 |
---|
689 | * |
---|
690 | * @param array $tagnames List of shortcodes to find. |
---|
691 | * @return string The regular expression |
---|
692 | */ |
---|
693 | function _get_wptexturize_shortcode_regex( $tagnames ) { |
---|
694 | $tagregexp = join( '|', array_map( 'preg_quote', $tagnames ) ); |
---|
695 | $tagregexp = "(?:$tagregexp)(?=[\\s\\]\\/])"; // Excerpt of get_shortcode_regex(). |
---|
696 | $regex = |
---|
697 | '\[' // Find start of shortcode. |
---|
698 | . '[\/\[]?' // Shortcodes may begin with [/ or [[ |
---|
699 | . $tagregexp // Only match registered shortcodes, because performance. |
---|
700 | . '(?:' |
---|
701 | . '[^\[\]<>]+' // Shortcodes do not contain other shortcodes. Quantifier critical. |
---|
702 | . '|' |
---|
703 | . '<[^\[\]>]*>' // HTML elements permitted. Prevents matching ] before >. |
---|
704 | . ')*+' // Possessive critical. |
---|
705 | . '\]' // Find end of shortcode. |
---|
706 | . '\]?'; // Shortcodes may end with ]] |
---|
707 | |
---|
708 | return $regex; |
---|
709 | } |
---|
710 | |
---|
711 | /** |
---|
712 | * Replace characters or phrases within HTML elements only. |
---|
713 | * |
---|
714 | * @since 4.2.3 |
---|
715 | * |
---|
716 | * @param string $haystack The text which has to be formatted. |
---|
717 | * @param array $replace_pairs In the form array('from' => 'to', ...). |
---|
718 | * @return string The formatted text. |
---|
719 | */ |
---|
720 | function wp_replace_in_html_tags( $haystack, $replace_pairs ) { |
---|
721 | // Find all elements. |
---|
722 | $textarr = wp_html_split( $haystack ); |
---|
723 | $changed = false; |
---|
724 | |
---|
725 | // Optimize when searching for one item. |
---|
726 | if ( 1 === count( $replace_pairs ) ) { |
---|
727 | // Extract $needle and $replace. |
---|
728 | foreach ( $replace_pairs as $needle => $replace ); |
---|
729 | |
---|
730 | // Loop through delimiters (elements) only. |
---|
731 | for ( $i = 1, $c = count( $textarr ); $i < $c; $i += 2 ) { |
---|
732 | if ( false !== strpos( $textarr[$i], $needle ) ) { |
---|
733 | $textarr[$i] = str_replace( $needle, $replace, $textarr[$i] ); |
---|
734 | $changed = true; |
---|
735 | } |
---|
736 | } |
---|
737 | } else { |
---|
738 | // Extract all $needles. |
---|
739 | $needles = array_keys( $replace_pairs ); |
---|
740 | |
---|
741 | // Loop through delimiters (elements) only. |
---|
742 | for ( $i = 1, $c = count( $textarr ); $i < $c; $i += 2 ) { |
---|
743 | foreach ( $needles as $needle ) { |
---|
744 | if ( false !== strpos( $textarr[$i], $needle ) ) { |
---|
745 | $textarr[$i] = strtr( $textarr[$i], $replace_pairs ); |
---|
746 | $changed = true; |
---|
747 | // After one strtr() break out of the foreach loop and look at next element. |
---|
748 | break; |
---|
749 | } |
---|
750 | } |
---|
751 | } |
---|
752 | } |
---|
753 | |
---|
754 | if ( $changed ) { |
---|
755 | $haystack = implode( $textarr ); |
---|
756 | } |
---|
757 | |
---|
758 | return $haystack; |
---|
759 | } |
---|
760 | |
---|
761 | /** |
---|
762 | * Newline preservation help function for wpautop |
---|
763 | * |
---|
764 | * @since 3.1.0 |
---|
765 | * @access private |
---|
766 | * |
---|
767 | * @param array $matches preg_replace_callback matches array |
---|
768 | * @return string |
---|
769 | */ |
---|
770 | function _autop_newline_preservation_helper( $matches ) { |
---|
771 | return str_replace( "\n", "<WPPreserveNewline />", $matches[0] ); |
---|
772 | } |
---|
773 | |
---|
774 | /** |
---|
775 | * Don't auto-p wrap shortcodes that stand alone |
---|
776 | * |
---|
777 | * Ensures that shortcodes are not wrapped in `<p>...</p>`. |
---|
778 | * |
---|
779 | * @since 2.9.0 |
---|
780 | * |
---|
781 | * @global array $shortcode_tags |
---|
782 | * |
---|
783 | * @param string $pee The content. |
---|
784 | * @return string The filtered content. |
---|
785 | */ |
---|
786 | function shortcode_unautop( $pee ) { |
---|
787 | global $shortcode_tags; |
---|
788 | |
---|
789 | if ( empty( $shortcode_tags ) || !is_array( $shortcode_tags ) ) { |
---|
790 | return $pee; |
---|
791 | } |
---|
792 | |
---|
793 | $tagregexp = join( '|', array_map( 'preg_quote', array_keys( $shortcode_tags ) ) ); |
---|
794 | $spaces = wp_spaces_regexp(); |
---|
795 | |
---|
796 | $pattern = |
---|
797 | '/' |
---|
798 | . '<p>' // Opening paragraph |
---|
799 | . '(?:' . $spaces . ')*+' // Optional leading whitespace |
---|
800 | . '(' // 1: The shortcode |
---|
801 | . '\\[' // Opening bracket |
---|
802 | . "($tagregexp)" // 2: Shortcode name |
---|
803 | . '(?![\\w-])' // Not followed by word character or hyphen |
---|
804 | // Unroll the loop: Inside the opening shortcode tag |
---|
805 | . '[^\\]\\/]*' // Not a closing bracket or forward slash |
---|
806 | . '(?:' |
---|
807 | . '\\/(?!\\])' // A forward slash not followed by a closing bracket |
---|
808 | . '[^\\]\\/]*' // Not a closing bracket or forward slash |
---|
809 | . ')*?' |
---|
810 | . '(?:' |
---|
811 | . '\\/\\]' // Self closing tag and closing bracket |
---|
812 | . '|' |
---|
813 | . '\\]' // Closing bracket |
---|
814 | . '(?:' // Unroll the loop: Optionally, anything between the opening and closing shortcode tags |
---|
815 | . '[^\\[]*+' // Not an opening bracket |
---|
816 | . '(?:' |
---|
817 | . '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag |
---|
818 | . '[^\\[]*+' // Not an opening bracket |
---|
819 | . ')*+' |
---|
820 | . '\\[\\/\\2\\]' // Closing shortcode tag |
---|
821 | . ')?' |
---|
822 | . ')' |
---|
823 | . ')' |
---|
824 | . '(?:' . $spaces . ')*+' // optional trailing whitespace |
---|
825 | . '<\\/p>' // closing paragraph |
---|
826 | . '/'; |
---|
827 | |
---|
828 | return preg_replace( $pattern, '$1', $pee ); |
---|
829 | } |
---|
830 | |
---|
831 | /** |
---|
832 | * Checks to see if a string is utf8 encoded. |
---|
833 | * |
---|
834 | * NOTE: This function checks for 5-Byte sequences, UTF8 |
---|
835 | * has Bytes Sequences with a maximum length of 4. |
---|
836 | * |
---|
837 | * @author bmorel at ssi dot fr (modified) |
---|
838 | * @since 1.2.1 |
---|
839 | * |
---|
840 | * @param string $str The string to be checked |
---|
841 | * @return bool True if $str fits a UTF-8 model, false otherwise. |
---|
842 | */ |
---|
843 | function seems_utf8( $str ) { |
---|
844 | mbstring_binary_safe_encoding(); |
---|
845 | $length = strlen($str); |
---|
846 | reset_mbstring_encoding(); |
---|
847 | for ($i=0; $i < $length; $i++) { |
---|
848 | $c = ord($str[$i]); |
---|
849 | if ($c < 0x80) $n = 0; // 0bbbbbbb |
---|
850 | elseif (($c & 0xE0) == 0xC0) $n=1; // 110bbbbb |
---|
851 | elseif (($c & 0xF0) == 0xE0) $n=2; // 1110bbbb |
---|
852 | elseif (($c & 0xF8) == 0xF0) $n=3; // 11110bbb |
---|
853 | elseif (($c & 0xFC) == 0xF8) $n=4; // 111110bb |
---|
854 | elseif (($c & 0xFE) == 0xFC) $n=5; // 1111110b |
---|
855 | else return false; // Does not match any model |
---|
856 | for ($j=0; $j<$n; $j++) { // n bytes matching 10bbbbbb follow ? |
---|
857 | if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80)) |
---|
858 | return false; |
---|
859 | } |
---|
860 | } |
---|
861 | return true; |
---|
862 | } |
---|
863 | |
---|
864 | /** |
---|
865 | * Converts a number of special characters into their HTML entities. |
---|
866 | * |
---|
867 | * Specifically deals with: &, <, >, ", and '. |
---|
868 | * |
---|
869 | * $quote_style can be set to ENT_COMPAT to encode " to |
---|
870 | * ", or ENT_QUOTES to do both. Default is ENT_NOQUOTES where no quotes are encoded. |
---|
871 | * |
---|
872 | * @since 1.2.2 |
---|
873 | * @access private |
---|
874 | * |
---|
875 | * @staticvar string $_charset |
---|
876 | * |
---|
877 | * @param string $string The text which is to be encoded. |
---|
878 | * @param int|string $quote_style Optional. Converts double quotes if set to ENT_COMPAT, |
---|
879 | * both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. |
---|
880 | * Also compatible with old values; converting single quotes if set to 'single', |
---|
881 | * double if set to 'double' or both if otherwise set. |
---|
882 | * Default is ENT_NOQUOTES. |
---|
883 | * @param string $charset Optional. The character encoding of the string. Default is false. |
---|
884 | * @param bool $double_encode Optional. Whether to encode existing html entities. Default is false. |
---|
885 | * @return string The encoded text with HTML entities. |
---|
886 | */ |
---|
887 | function _wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) { |
---|
888 | $string = (string) $string; |
---|
889 | |
---|
890 | if ( 0 === strlen( $string ) ) |
---|
891 | return ''; |
---|
892 | |
---|
893 | // Don't bother if there are no specialchars - saves some processing |
---|
894 | if ( ! preg_match( '/[&<>"\']/', $string ) ) |
---|
895 | return $string; |
---|
896 | |
---|
897 | // Account for the previous behaviour of the function when the $quote_style is not an accepted value |
---|
898 | if ( empty( $quote_style ) ) |
---|
899 | $quote_style = ENT_NOQUOTES; |
---|
900 | elseif ( ! in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) |
---|
901 | $quote_style = ENT_QUOTES; |
---|
902 | |
---|
903 | // Store the site charset as a static to avoid multiple calls to wp_load_alloptions() |
---|
904 | if ( ! $charset ) { |
---|
905 | static $_charset = null; |
---|
906 | if ( ! isset( $_charset ) ) { |
---|
907 | $alloptions = wp_load_alloptions(); |
---|
908 | $_charset = isset( $alloptions['blog_charset'] ) ? $alloptions['blog_charset'] : ''; |
---|
909 | } |
---|
910 | $charset = $_charset; |
---|
911 | } |
---|
912 | |
---|
913 | if ( in_array( $charset, array( 'utf8', 'utf-8', 'UTF8' ) ) ) |
---|
914 | $charset = 'UTF-8'; |
---|
915 | |
---|
916 | $_quote_style = $quote_style; |
---|
917 | |
---|
918 | if ( $quote_style === 'double' ) { |
---|
919 | $quote_style = ENT_COMPAT; |
---|
920 | $_quote_style = ENT_COMPAT; |
---|
921 | } elseif ( $quote_style === 'single' ) { |
---|
922 | $quote_style = ENT_NOQUOTES; |
---|
923 | } |
---|
924 | |
---|
925 | if ( ! $double_encode ) { |
---|
926 | // Guarantee every &entity; is valid, convert &garbage; into &garbage; |
---|
927 | // This is required for PHP < 5.4.0 because ENT_HTML401 flag is unavailable. |
---|
928 | $string = wp_kses_normalize_entities( $string ); |
---|
929 | } |
---|
930 | |
---|
931 | $string = @htmlspecialchars( $string, $quote_style, $charset, $double_encode ); |
---|
932 | |
---|
933 | // Backwards compatibility |
---|
934 | if ( 'single' === $_quote_style ) |
---|
935 | $string = str_replace( "'", ''', $string ); |
---|
936 | |
---|
937 | return $string; |
---|
938 | } |
---|
939 | |
---|
940 | /** |
---|
941 | * Converts a number of HTML entities into their special characters. |
---|
942 | * |
---|
943 | * Specifically deals with: &, <, >, ", and '. |
---|
944 | * |
---|
945 | * $quote_style can be set to ENT_COMPAT to decode " entities, |
---|
946 | * or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded. |
---|
947 | * |
---|
948 | * @since 2.8.0 |
---|
949 | * |
---|
950 | * @param string $string The text which is to be decoded. |
---|
951 | * @param string|int $quote_style Optional. Converts double quotes if set to ENT_COMPAT, |
---|
952 | * both single and double if set to ENT_QUOTES or |
---|
953 | * none if set to ENT_NOQUOTES. |
---|
954 | * Also compatible with old _wp_specialchars() values; |
---|
955 | * converting single quotes if set to 'single', |
---|
956 | * double if set to 'double' or both if otherwise set. |
---|
957 | * Default is ENT_NOQUOTES. |
---|
958 | * @return string The decoded text without HTML entities. |
---|
959 | */ |
---|
960 | function wp_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) { |
---|
961 | $string = (string) $string; |
---|
962 | |
---|
963 | if ( 0 === strlen( $string ) ) { |
---|
964 | return ''; |
---|
965 | } |
---|
966 | |
---|
967 | // Don't bother if there are no entities - saves a lot of processing |
---|
968 | if ( strpos( $string, '&' ) === false ) { |
---|
969 | return $string; |
---|
970 | } |
---|
971 | |
---|
972 | // Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value |
---|
973 | if ( empty( $quote_style ) ) { |
---|
974 | $quote_style = ENT_NOQUOTES; |
---|
975 | } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) { |
---|
976 | $quote_style = ENT_QUOTES; |
---|
977 | } |
---|
978 | |
---|
979 | // More complete than get_html_translation_table( HTML_SPECIALCHARS ) |
---|
980 | $single = array( ''' => '\'', ''' => '\'' ); |
---|
981 | $single_preg = array( '/�*39;/' => ''', '/�*27;/i' => ''' ); |
---|
982 | $double = array( '"' => '"', '"' => '"', '"' => '"' ); |
---|
983 | $double_preg = array( '/�*34;/' => '"', '/�*22;/i' => '"' ); |
---|
984 | $others = array( '<' => '<', '<' => '<', '>' => '>', '>' => '>', '&' => '&', '&' => '&', '&' => '&' ); |
---|
985 | $others_preg = array( '/�*60;/' => '<', '/�*62;/' => '>', '/�*38;/' => '&', '/�*26;/i' => '&' ); |
---|
986 | |
---|
987 | if ( $quote_style === ENT_QUOTES ) { |
---|
988 | $translation = array_merge( $single, $double, $others ); |
---|
989 | $translation_preg = array_merge( $single_preg, $double_preg, $others_preg ); |
---|
990 | } elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) { |
---|
991 | $translation = array_merge( $double, $others ); |
---|
992 | $translation_preg = array_merge( $double_preg, $others_preg ); |
---|
993 | } elseif ( $quote_style === 'single' ) { |
---|
994 | $translation = array_merge( $single, $others ); |
---|
995 | $translation_preg = array_merge( $single_preg, $others_preg ); |
---|
996 | } elseif ( $quote_style === ENT_NOQUOTES ) { |
---|
997 | $translation = $others; |
---|
998 | $translation_preg = $others_preg; |
---|
999 | } |
---|
1000 | |
---|
1001 | // Remove zero padding on numeric entities |
---|
1002 | $string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string ); |
---|
1003 | |
---|
1004 | // Replace characters according to translation table |
---|
1005 | return strtr( $string, $translation ); |
---|
1006 | } |
---|
1007 | |
---|
1008 | /** |
---|
1009 | * Checks for invalid UTF8 in a string. |
---|
1010 | * |
---|
1011 | * @since 2.8.0 |
---|
1012 | * |
---|
1013 | * @staticvar bool $is_utf8 |
---|
1014 | * @staticvar bool $utf8_pcre |
---|
1015 | * |
---|
1016 | * @param string $string The text which is to be checked. |
---|
1017 | * @param bool $strip Optional. Whether to attempt to strip out invalid UTF8. Default is false. |
---|
1018 | * @return string The checked text. |
---|
1019 | */ |
---|
1020 | function wp_check_invalid_utf8( $string, $strip = false ) { |
---|
1021 | $string = (string) $string; |
---|
1022 | |
---|
1023 | if ( 0 === strlen( $string ) ) { |
---|
1024 | return ''; |
---|
1025 | } |
---|
1026 | |
---|
1027 | // Store the site charset as a static to avoid multiple calls to get_option() |
---|
1028 | static $is_utf8 = null; |
---|
1029 | if ( ! isset( $is_utf8 ) ) { |
---|
1030 | $is_utf8 = in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) ); |
---|
1031 | } |
---|
1032 | if ( ! $is_utf8 ) { |
---|
1033 | return $string; |
---|
1034 | } |
---|
1035 | |
---|
1036 | // Check for support for utf8 in the installed PCRE library once and store the result in a static |
---|
1037 | static $utf8_pcre = null; |
---|
1038 | if ( ! isset( $utf8_pcre ) ) { |
---|
1039 | $utf8_pcre = @preg_match( '/^./u', 'a' ); |
---|
1040 | } |
---|
1041 | // We can't demand utf8 in the PCRE installation, so just return the string in those cases |
---|
1042 | if ( !$utf8_pcre ) { |
---|
1043 | return $string; |
---|
1044 | } |
---|
1045 | |
---|
1046 | // preg_match fails when it encounters invalid UTF8 in $string |
---|
1047 | if ( 1 === @preg_match( '/^./us', $string ) ) { |
---|
1048 | return $string; |
---|
1049 | } |
---|
1050 | |
---|
1051 | // Attempt to strip the bad chars if requested (not recommended) |
---|
1052 | if ( $strip && function_exists( 'iconv' ) ) { |
---|
1053 | return iconv( 'utf-8', 'utf-8', $string ); |
---|
1054 | } |
---|
1055 | |
---|
1056 | return ''; |
---|
1057 | } |
---|
1058 | |
---|
1059 | /** |
---|
1060 | * Encode the Unicode values to be used in the URI. |
---|
1061 | * |
---|
1062 | * @since 1.5.0 |
---|
1063 | * |
---|
1064 | * @param string $utf8_string |
---|
1065 | * @param int $length Max length of the string |
---|
1066 | * @return string String with Unicode encoded for URI. |
---|
1067 | */ |
---|
1068 | function utf8_uri_encode( $utf8_string, $length = 0 ) { |
---|
1069 | $unicode = ''; |
---|
1070 | $values = array(); |
---|
1071 | $num_octets = 1; |
---|
1072 | $unicode_length = 0; |
---|
1073 | |
---|
1074 | mbstring_binary_safe_encoding(); |
---|
1075 | $string_length = strlen( $utf8_string ); |
---|
1076 | reset_mbstring_encoding(); |
---|
1077 | |
---|
1078 | for ($i = 0; $i < $string_length; $i++ ) { |
---|
1079 | |
---|
1080 | $value = ord( $utf8_string[ $i ] ); |
---|
1081 | |
---|
1082 | if ( $value < 128 ) { |
---|
1083 | if ( $length && ( $unicode_length >= $length ) ) |
---|
1084 | break; |
---|
1085 | $unicode .= chr($value); |
---|
1086 | $unicode_length++; |
---|
1087 | } else { |
---|
1088 | if ( count( $values ) == 0 ) { |
---|
1089 | if ( $value < 224 ) { |
---|
1090 | $num_octets = 2; |
---|
1091 | } elseif ( $value < 240 ) { |
---|
1092 | $num_octets = 3; |
---|
1093 | } else { |
---|
1094 | $num_octets = 4; |
---|
1095 | } |
---|
1096 | } |
---|
1097 | |
---|
1098 | $values[] = $value; |
---|
1099 | |
---|
1100 | if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length ) |
---|
1101 | break; |
---|
1102 | if ( count( $values ) == $num_octets ) { |
---|
1103 | for ( $j = 0; $j < $num_octets; $j++ ) { |
---|
1104 | $unicode .= '%' . dechex( $values[ $j ] ); |
---|
1105 | } |
---|
1106 | |
---|
1107 | $unicode_length += $num_octets * 3; |
---|
1108 | |
---|
1109 | $values = array(); |
---|
1110 | $num_octets = 1; |
---|
1111 | } |
---|
1112 | } |
---|
1113 | } |
---|
1114 | |
---|
1115 | return $unicode; |
---|
1116 | } |
---|
1117 | |
---|
1118 | /** |
---|
1119 | * Converts all accent characters to ASCII characters. |
---|
1120 | * |
---|
1121 | * If there are no accent characters, then the string given is just returned. |
---|
1122 | * |
---|
1123 | * @since 1.2.1 |
---|
1124 | * |
---|
1125 | * @param string $string Text that might have accent characters |
---|
1126 | * @return string Filtered string with replaced "nice" characters. |
---|
1127 | */ |
---|
1128 | function remove_accents( $string ) { |
---|
1129 | if ( !preg_match('/[\x80-\xff]/', $string) ) |
---|
1130 | return $string; |
---|
1131 | |
---|
1132 | if (seems_utf8($string)) { |
---|
1133 | $chars = array( |
---|
1134 | // Decompositions for Latin-1 Supplement |
---|
1135 | chr(194).chr(170) => 'a', chr(194).chr(186) => 'o', |
---|
1136 | chr(195).chr(128) => 'A', chr(195).chr(129) => 'A', |
---|
1137 | chr(195).chr(130) => 'A', chr(195).chr(131) => 'A', |
---|
1138 | chr(195).chr(132) => 'A', chr(195).chr(133) => 'A', |
---|
1139 | chr(195).chr(134) => 'AE',chr(195).chr(135) => 'C', |
---|
1140 | chr(195).chr(136) => 'E', chr(195).chr(137) => 'E', |
---|
1141 | chr(195).chr(138) => 'E', chr(195).chr(139) => 'E', |
---|
1142 | chr(195).chr(140) => 'I', chr(195).chr(141) => 'I', |
---|
1143 | chr(195).chr(142) => 'I', chr(195).chr(143) => 'I', |
---|
1144 | chr(195).chr(144) => 'D', chr(195).chr(145) => 'N', |
---|
1145 | chr(195).chr(146) => 'O', chr(195).chr(147) => 'O', |
---|
1146 | chr(195).chr(148) => 'O', chr(195).chr(149) => 'O', |
---|
1147 | chr(195).chr(150) => 'O', chr(195).chr(153) => 'U', |
---|
1148 | chr(195).chr(154) => 'U', chr(195).chr(155) => 'U', |
---|
1149 | chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y', |
---|
1150 | chr(195).chr(158) => 'TH',chr(195).chr(159) => 's', |
---|
1151 | chr(195).chr(160) => 'a', chr(195).chr(161) => 'a', |
---|
1152 | chr(195).chr(162) => 'a', chr(195).chr(163) => 'a', |
---|
1153 | chr(195).chr(164) => 'a', chr(195).chr(165) => 'a', |
---|
1154 | chr(195).chr(166) => 'ae',chr(195).chr(167) => 'c', |
---|
1155 | chr(195).chr(168) => 'e', chr(195).chr(169) => 'e', |
---|
1156 | chr(195).chr(170) => 'e', chr(195).chr(171) => 'e', |
---|
1157 | chr(195).chr(172) => 'i', chr(195).chr(173) => 'i', |
---|
1158 | chr(195).chr(174) => 'i', chr(195).chr(175) => 'i', |
---|
1159 | chr(195).chr(176) => 'd', chr(195).chr(177) => 'n', |
---|
1160 | chr(195).chr(178) => 'o', chr(195).chr(179) => 'o', |
---|
1161 | chr(195).chr(180) => 'o', chr(195).chr(181) => 'o', |
---|
1162 | chr(195).chr(182) => 'o', chr(195).chr(184) => 'o', |
---|
1163 | chr(195).chr(185) => 'u', chr(195).chr(186) => 'u', |
---|
1164 | chr(195).chr(187) => 'u', chr(195).chr(188) => 'u', |
---|
1165 | chr(195).chr(189) => 'y', chr(195).chr(190) => 'th', |
---|
1166 | chr(195).chr(191) => 'y', chr(195).chr(152) => 'O', |
---|
1167 | // Decompositions for Latin Extended-A |
---|
1168 | chr(196).chr(128) => 'A', chr(196).chr(129) => 'a', |
---|
1169 | chr(196).chr(130) => 'A', chr(196).chr(131) => 'a', |
---|
1170 | chr(196).chr(132) => 'A', chr(196).chr(133) => 'a', |
---|
1171 | chr(196).chr(134) => 'C', chr(196).chr(135) => 'c', |
---|
1172 | chr(196).chr(136) => 'C', chr(196).chr(137) => 'c', |
---|
1173 | chr(196).chr(138) => 'C', chr(196).chr(139) => 'c', |
---|
1174 | chr(196).chr(140) => 'C', chr(196).chr(141) => 'c', |
---|
1175 | chr(196).chr(142) => 'D', chr(196).chr(143) => 'd', |
---|
1176 | chr(196).chr(144) => 'D', chr(196).chr(145) => 'd', |
---|
1177 | chr(196).chr(146) => 'E', chr(196).chr(147) => 'e', |
---|
1178 | chr(196).chr(148) => 'E', chr(196).chr(149) => 'e', |
---|
1179 | chr(196).chr(150) => 'E', chr(196).chr(151) => 'e', |
---|
1180 | chr(196).chr(152) => 'E', chr(196).chr(153) => 'e', |
---|
1181 | chr(196).chr(154) => 'E', chr(196).chr(155) => 'e', |
---|
1182 | chr(196).chr(156) => 'G', chr(196).chr(157) => 'g', |
---|
1183 | chr(196).chr(158) => 'G', chr(196).chr(159) => 'g', |
---|
1184 | chr(196).chr(160) => 'G', chr(196).chr(161) => 'g', |
---|
1185 | chr(196).chr(162) => 'G', chr(196).chr(163) => 'g', |
---|
1186 | chr(196).chr(164) => 'H', chr(196).chr(165) => 'h', |
---|
1187 | chr(196).chr(166) => 'H', chr(196).chr(167) => 'h', |
---|
1188 | chr(196).chr(168) => 'I', chr(196).chr(169) => 'i', |
---|
1189 | chr(196).chr(170) => 'I', chr(196).chr(171) => 'i', |
---|
1190 | chr(196).chr(172) => 'I', chr(196).chr(173) => 'i', |
---|
1191 | chr(196).chr(174) => 'I', chr(196).chr(175) => 'i', |
---|
1192 | chr(196).chr(176) => 'I', chr(196).chr(177) => 'i', |
---|
1193 | chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij', |
---|
1194 | chr(196).chr(180) => 'J', chr(196).chr(181) => 'j', |
---|
1195 | chr(196).chr(182) => 'K', chr(196).chr(183) => 'k', |
---|
1196 | chr(196).chr(184) => 'k', chr(196).chr(185) => 'L', |
---|
1197 | chr(196).chr(186) => 'l', chr(196).chr(187) => 'L', |
---|
1198 | chr(196).chr(188) => 'l', chr(196).chr(189) => 'L', |
---|
1199 | chr(196).chr(190) => 'l', chr(196).chr(191) => 'L', |
---|
1200 | chr(197).chr(128) => 'l', chr(197).chr(129) => 'L', |
---|
1201 | chr(197).chr(130) => 'l', chr(197).chr(131) => 'N', |
---|
1202 | chr(197).chr(132) => 'n', chr(197).chr(133) => 'N', |
---|
1203 | chr(197).chr(134) => 'n', chr(197).chr(135) => 'N', |
---|
1204 | chr(197).chr(136) => 'n', chr(197).chr(137) => 'N', |
---|
1205 | chr(197).chr(138) => 'n', chr(197).chr(139) => 'N', |
---|
1206 | chr(197).chr(140) => 'O', chr(197).chr(141) => 'o', |
---|
1207 | chr(197).chr(142) => 'O', chr(197).chr(143) => 'o', |
---|
1208 | chr(197).chr(144) => 'O', chr(197).chr(145) => 'o', |
---|
1209 | chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe', |
---|
1210 | chr(197).chr(148) => 'R',chr(197).chr(149) => 'r', |
---|
1211 | chr(197).chr(150) => 'R',chr(197).chr(151) => 'r', |
---|
1212 | chr(197).chr(152) => 'R',chr(197).chr(153) => 'r', |
---|
1213 | chr(197).chr(154) => 'S',chr(197).chr(155) => 's', |
---|
1214 | chr(197).chr(156) => 'S',chr(197).chr(157) => 's', |
---|
1215 | chr(197).chr(158) => 'S',chr(197).chr(159) => 's', |
---|
1216 | chr(197).chr(160) => 'S', chr(197).chr(161) => 's', |
---|
1217 | chr(197).chr(162) => 'T', chr(197).chr(163) => 't', |
---|
1218 | chr(197).chr(164) => 'T', chr(197).chr(165) => 't', |
---|
1219 | chr(197).chr(166) => 'T', chr(197).chr(167) => 't', |
---|
1220 | chr(197).chr(168) => 'U', chr(197).chr(169) => 'u', |
---|
1221 | chr(197).chr(170) => 'U', chr(197).chr(171) => 'u', |
---|
1222 | chr(197).chr(172) => 'U', chr(197).chr(173) => 'u', |
---|
1223 | chr(197).chr(174) => 'U', chr(197).chr(175) => 'u', |
---|
1224 | chr(197).chr(176) => 'U', chr(197).chr(177) => 'u', |
---|
1225 | chr(197).chr(178) => 'U', chr(197).chr(179) => 'u', |
---|
1226 | chr(197).chr(180) => 'W', chr(197).chr(181) => 'w', |
---|
1227 | chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y', |
---|
1228 | chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z', |
---|
1229 | chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z', |
---|
1230 | chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z', |
---|
1231 | chr(197).chr(190) => 'z', chr(197).chr(191) => 's', |
---|
1232 | // Decompositions for Latin Extended-B |
---|
1233 | chr(200).chr(152) => 'S', chr(200).chr(153) => 's', |
---|
1234 | chr(200).chr(154) => 'T', chr(200).chr(155) => 't', |
---|
1235 | // Euro Sign |
---|
1236 | chr(226).chr(130).chr(172) => 'E', |
---|
1237 | // GBP (Pound) Sign |
---|
1238 | chr(194).chr(163) => '', |
---|
1239 | // Vowels with diacritic (Vietnamese) |
---|
1240 | // unmarked |
---|
1241 | chr(198).chr(160) => 'O', chr(198).chr(161) => 'o', |
---|
1242 | chr(198).chr(175) => 'U', chr(198).chr(176) => 'u', |
---|
1243 | // grave accent |
---|
1244 | chr(225).chr(186).chr(166) => 'A', chr(225).chr(186).chr(167) => 'a', |
---|
1245 | chr(225).chr(186).chr(176) => 'A', chr(225).chr(186).chr(177) => 'a', |
---|
1246 | chr(225).chr(187).chr(128) => 'E', chr(225).chr(187).chr(129) => 'e', |
---|
1247 | chr(225).chr(187).chr(146) => 'O', chr(225).chr(187).chr(147) => 'o', |
---|
1248 | chr(225).chr(187).chr(156) => 'O', chr(225).chr(187).chr(157) => 'o', |
---|
1249 | chr(225).chr(187).chr(170) => 'U', chr(225).chr(187).chr(171) => 'u', |
---|
1250 | chr(225).chr(187).chr(178) => 'Y', chr(225).chr(187).chr(179) => 'y', |
---|
1251 | // hook |
---|
1252 | chr(225).chr(186).chr(162) => 'A', chr(225).chr(186).chr(163) => 'a', |
---|
1253 | chr(225).chr(186).chr(168) => 'A', chr(225).chr(186).chr(169) => 'a', |
---|
1254 | chr(225).chr(186).chr(178) => 'A', chr(225).chr(186).chr(179) => 'a', |
---|
1255 | chr(225).chr(186).chr(186) => 'E', chr(225).chr(186).chr(187) => 'e', |
---|
1256 | chr(225).chr(187).chr(130) => 'E', chr(225).chr(187).chr(131) => 'e', |
---|
1257 | chr(225).chr(187).chr(136) => 'I', chr(225).chr(187).chr(137) => 'i', |
---|
1258 | chr(225).chr(187).chr(142) => 'O', chr(225).chr(187).chr(143) => 'o', |
---|
1259 | chr(225).chr(187).chr(148) => 'O', chr(225).chr(187).chr(149) => 'o', |
---|
1260 | chr(225).chr(187).chr(158) => 'O', chr(225).chr(187).chr(159) => 'o', |
---|
1261 | chr(225).chr(187).chr(166) => 'U', chr(225).chr(187).chr(167) => 'u', |
---|
1262 | chr(225).chr(187).chr(172) => 'U', chr(225).chr(187).chr(173) => 'u', |
---|
1263 | chr(225).chr(187).chr(182) => 'Y', chr(225).chr(187).chr(183) => 'y', |
---|
1264 | // tilde |
---|
1265 | chr(225).chr(186).chr(170) => 'A', chr(225).chr(186).chr(171) => 'a', |
---|
1266 | chr(225).chr(186).chr(180) => 'A', chr(225).chr(186).chr(181) => 'a', |
---|
1267 | chr(225).chr(186).chr(188) => 'E', chr(225).chr(186).chr(189) => 'e', |
---|
1268 | chr(225).chr(187).chr(132) => 'E', chr(225).chr(187).chr(133) => 'e', |
---|
1269 | chr(225).chr(187).chr(150) => 'O', chr(225).chr(187).chr(151) => 'o', |
---|
1270 | chr(225).chr(187).chr(160) => 'O', chr(225).chr(187).chr(161) => 'o', |
---|
1271 | chr(225).chr(187).chr(174) => 'U', chr(225).chr(187).chr(175) => 'u', |
---|
1272 | chr(225).chr(187).chr(184) => 'Y', chr(225).chr(187).chr(185) => 'y', |
---|
1273 | // acute accent |
---|
1274 | chr(225).chr(186).chr(164) => 'A', chr(225).chr(186).chr(165) => 'a', |
---|
1275 | chr(225).chr(186).chr(174) => 'A', chr(225).chr(186).chr(175) => 'a', |
---|
1276 | chr(225).chr(186).chr(190) => 'E', chr(225).chr(186).chr(191) => 'e', |
---|
1277 | chr(225).chr(187).chr(144) => 'O', chr(225).chr(187).chr(145) => 'o', |
---|
1278 | chr(225).chr(187).chr(154) => 'O', chr(225).chr(187).chr(155) => 'o', |
---|
1279 | chr(225).chr(187).chr(168) => 'U', chr(225).chr(187).chr(169) => 'u', |
---|
1280 | // dot below |
---|
1281 | chr(225).chr(186).chr(160) => 'A', chr(225).chr(186).chr(161) => 'a', |
---|
1282 | chr(225).chr(186).chr(172) => 'A', chr(225).chr(186).chr(173) => 'a', |
---|
1283 | chr(225).chr(186).chr(182) => 'A', chr(225).chr(186).chr(183) => 'a', |
---|
1284 | chr(225).chr(186).chr(184) => 'E', chr(225).chr(186).chr(185) => 'e', |
---|
1285 | chr(225).chr(187).chr(134) => 'E', chr(225).chr(187).chr(135) => 'e', |
---|
1286 | chr(225).chr(187).chr(138) => 'I', chr(225).chr(187).chr(139) => 'i', |
---|
1287 | chr(225).chr(187).chr(140) => 'O', chr(225).chr(187).chr(141) => 'o', |
---|
1288 | chr(225).chr(187).chr(152) => 'O', chr(225).chr(187).chr(153) => 'o', |
---|
1289 | chr(225).chr(187).chr(162) => 'O', chr(225).chr(187).chr(163) => 'o', |
---|
1290 | chr(225).chr(187).chr(164) => 'U', chr(225).chr(187).chr(165) => 'u', |
---|
1291 | chr(225).chr(187).chr(176) => 'U', chr(225).chr(187).chr(177) => 'u', |
---|
1292 | chr(225).chr(187).chr(180) => 'Y', chr(225).chr(187).chr(181) => 'y', |
---|
1293 | // Vowels with diacritic (Chinese, Hanyu Pinyin) |
---|
1294 | chr(201).chr(145) => 'a', |
---|
1295 | // macron |
---|
1296 | chr(199).chr(149) => 'U', chr(199).chr(150) => 'u', |
---|
1297 | // acute accent |
---|
1298 | chr(199).chr(151) => 'U', chr(199).chr(152) => 'u', |
---|
1299 | // caron |
---|
1300 | chr(199).chr(141) => 'A', chr(199).chr(142) => 'a', |
---|
1301 | chr(199).chr(143) => 'I', chr(199).chr(144) => 'i', |
---|
1302 | chr(199).chr(145) => 'O', chr(199).chr(146) => 'o', |
---|
1303 | chr(199).chr(147) => 'U', chr(199).chr(148) => 'u', |
---|
1304 | chr(199).chr(153) => 'U', chr(199).chr(154) => 'u', |
---|
1305 | // grave accent |
---|
1306 | chr(199).chr(155) => 'U', chr(199).chr(156) => 'u', |
---|
1307 | ); |
---|
1308 | |
---|
1309 | // Used for locale-specific rules |
---|
1310 | $locale = get_locale(); |
---|
1311 | |
---|
1312 | if ( 'de_DE' == $locale || 'de_DE_formal' == $locale ) { |
---|
1313 | $chars[ chr(195).chr(132) ] = 'Ae'; |
---|
1314 | $chars[ chr(195).chr(164) ] = 'ae'; |
---|
1315 | $chars[ chr(195).chr(150) ] = 'Oe'; |
---|
1316 | $chars[ chr(195).chr(182) ] = 'oe'; |
---|
1317 | $chars[ chr(195).chr(156) ] = 'Ue'; |
---|
1318 | $chars[ chr(195).chr(188) ] = 'ue'; |
---|
1319 | $chars[ chr(195).chr(159) ] = 'ss'; |
---|
1320 | } elseif ( 'da_DK' === $locale ) { |
---|
1321 | $chars[ chr(195).chr(134) ] = 'Ae'; |
---|
1322 | $chars[ chr(195).chr(166) ] = 'ae'; |
---|
1323 | $chars[ chr(195).chr(152) ] = 'Oe'; |
---|
1324 | $chars[ chr(195).chr(184) ] = 'oe'; |
---|
1325 | $chars[ chr(195).chr(133) ] = 'Aa'; |
---|
1326 | $chars[ chr(195).chr(165) ] = 'aa'; |
---|
1327 | } |
---|
1328 | |
---|
1329 | $string = strtr($string, $chars); |
---|
1330 | } else { |
---|
1331 | $chars = array(); |
---|
1332 | // Assume ISO-8859-1 if not UTF-8 |
---|
1333 | $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158) |
---|
1334 | .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194) |
---|
1335 | .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202) |
---|
1336 | .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210) |
---|
1337 | .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218) |
---|
1338 | .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227) |
---|
1339 | .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235) |
---|
1340 | .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243) |
---|
1341 | .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251) |
---|
1342 | .chr(252).chr(253).chr(255); |
---|
1343 | |
---|
1344 | $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy"; |
---|
1345 | |
---|
1346 | $string = strtr($string, $chars['in'], $chars['out']); |
---|
1347 | $double_chars = array(); |
---|
1348 | $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254)); |
---|
1349 | $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); |
---|
1350 | $string = str_replace($double_chars['in'], $double_chars['out'], $string); |
---|
1351 | } |
---|
1352 | |
---|
1353 | return $string; |
---|
1354 | } |
---|
1355 | |
---|
1356 | /** |
---|
1357 | * Sanitizes a filename, replacing whitespace with dashes. |
---|
1358 | * |
---|
1359 | * Removes special characters that are illegal in filenames on certain |
---|
1360 | * operating systems and special characters requiring special escaping |
---|
1361 | * to manipulate at the command line. Replaces spaces and consecutive |
---|
1362 | * dashes with a single dash. Trims period, dash and underscore from beginning |
---|
1363 | * and end of filename. |
---|
1364 | * |
---|
1365 | * @since 2.1.0 |
---|
1366 | * |
---|
1367 | * @param string $filename The filename to be sanitized |
---|
1368 | * @return string The sanitized filename |
---|
1369 | */ |
---|
1370 | function sanitize_file_name( $filename ) { |
---|
1371 | $filename_raw = $filename; |
---|
1372 | $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", "%", "+", chr(0)); |
---|
1373 | /** |
---|
1374 | * Filter the list of characters to remove from a filename. |
---|
1375 | * |
---|
1376 | * @since 2.8.0 |
---|
1377 | * |
---|
1378 | * @param array $special_chars Characters to remove. |
---|
1379 | * @param string $filename_raw Filename as it was passed into sanitize_file_name(). |
---|
1380 | */ |
---|
1381 | $special_chars = apply_filters( 'sanitize_file_name_chars', $special_chars, $filename_raw ); |
---|
1382 | $filename = preg_replace( "#\x{00a0}#siu", ' ', $filename ); |
---|
1383 | $filename = str_replace( $special_chars, '', $filename ); |
---|
1384 | $filename = str_replace( array( '%20', '+' ), '-', $filename ); |
---|
1385 | $filename = preg_replace( '/[\r\n\t -]+/', '-', $filename ); |
---|
1386 | $filename = trim( $filename, '.-_' ); |
---|
1387 | |
---|
1388 | // Split the filename into a base and extension[s] |
---|
1389 | $parts = explode('.', $filename); |
---|
1390 | |
---|
1391 | // Return if only one extension |
---|
1392 | if ( count( $parts ) <= 2 ) { |
---|
1393 | /** |
---|
1394 | * Filter a sanitized filename string. |
---|
1395 | * |
---|
1396 | * @since 2.8.0 |
---|
1397 | * |
---|
1398 | * @param string $filename Sanitized filename. |
---|
1399 | * @param string $filename_raw The filename prior to sanitization. |
---|
1400 | */ |
---|
1401 | return apply_filters( 'sanitize_file_name', $filename, $filename_raw ); |
---|
1402 | } |
---|
1403 | |
---|
1404 | // Process multiple extensions |
---|
1405 | $filename = array_shift($parts); |
---|
1406 | $extension = array_pop($parts); |
---|
1407 | $mimes = get_allowed_mime_types(); |
---|
1408 | |
---|
1409 | /* |
---|
1410 | * Loop over any intermediate extensions. Postfix them with a trailing underscore |
---|
1411 | * if they are a 2 - 5 character long alpha string not in the extension whitelist. |
---|
1412 | */ |
---|
1413 | foreach ( (array) $parts as $part) { |
---|
1414 | $filename .= '.' . $part; |
---|
1415 | |
---|
1416 | if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) { |
---|
1417 | $allowed = false; |
---|
1418 | foreach ( $mimes as $ext_preg => $mime_match ) { |
---|
1419 | $ext_preg = '!^(' . $ext_preg . ')$!i'; |
---|
1420 | if ( preg_match( $ext_preg, $part ) ) { |
---|
1421 | $allowed = true; |
---|
1422 | break; |
---|
1423 | } |
---|
1424 | } |
---|
1425 | if ( !$allowed ) |
---|
1426 | $filename .= '_'; |
---|
1427 | } |
---|
1428 | } |
---|
1429 | $filename .= '.' . $extension; |
---|
1430 | /** This filter is documented in wp-includes/formatting.php */ |
---|
1431 | return apply_filters('sanitize_file_name', $filename, $filename_raw); |
---|
1432 | } |
---|
1433 | |
---|
1434 | /** |
---|
1435 | * Sanitizes a username, stripping out unsafe characters. |
---|
1436 | * |
---|
1437 | * Removes tags, octets, entities, and if strict is enabled, will only keep |
---|
1438 | * alphanumeric, _, space, ., -, @. After sanitizing, it passes the username, |
---|
1439 | * raw username (the username in the parameter), and the value of $strict as |
---|
1440 | * parameters for the 'sanitize_user' filter. |
---|
1441 | * |
---|
1442 | * @since 2.0.0 |
---|
1443 | * |
---|
1444 | * @param string $username The username to be sanitized. |
---|
1445 | * @param bool $strict If set limits $username to specific characters. Default false. |
---|
1446 | * @return string The sanitized username, after passing through filters. |
---|
1447 | */ |
---|
1448 | function sanitize_user( $username, $strict = false ) { |
---|
1449 | $raw_username = $username; |
---|
1450 | $username = wp_strip_all_tags( $username ); |
---|
1451 | $username = remove_accents( $username ); |
---|
1452 | // Kill octets |
---|
1453 | $username = preg_replace( '|%([a-fA-F0-9][a-fA-F0-9])|', '', $username ); |
---|
1454 | $username = preg_replace( '/&.+?;/', '', $username ); // Kill entities |
---|
1455 | |
---|
1456 | // If strict, reduce to ASCII for max portability. |
---|
1457 | if ( $strict ) |
---|
1458 | $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username ); |
---|
1459 | |
---|
1460 | $username = trim( $username ); |
---|
1461 | // Consolidate contiguous whitespace |
---|
1462 | $username = preg_replace( '|\s+|', ' ', $username ); |
---|
1463 | |
---|
1464 | /** |
---|
1465 | * Filter a sanitized username string. |
---|
1466 | * |
---|
1467 | * @since 2.0.1 |
---|
1468 | * |
---|
1469 | * @param string $username Sanitized username. |
---|
1470 | * @param string $raw_username The username prior to sanitization. |
---|
1471 | * @param bool $strict Whether to limit the sanitization to specific characters. Default false. |
---|
1472 | */ |
---|
1473 | return apply_filters( 'sanitize_user', $username, $raw_username, $strict ); |
---|
1474 | } |
---|
1475 | |
---|
1476 | /** |
---|
1477 | * Sanitizes a string key. |
---|
1478 | * |
---|
1479 | * Keys are used as internal identifiers. Lowercase alphanumeric characters, dashes and underscores are allowed. |
---|
1480 | * |
---|
1481 | * @since 3.0.0 |
---|
1482 | * |
---|
1483 | * @param string $key String key |
---|
1484 | * @return string Sanitized key |
---|
1485 | */ |
---|
1486 | function sanitize_key( $key ) { |
---|
1487 | $raw_key = $key; |
---|
1488 | $key = strtolower( $key ); |
---|
1489 | $key = preg_replace( '/[^a-z0-9_\-]/', '', $key ); |
---|
1490 | |
---|
1491 | /** |
---|
1492 | * Filter a sanitized key string. |
---|
1493 | * |
---|
1494 | * @since 3.0.0 |
---|
1495 | * |
---|
1496 | * @param string $key Sanitized key. |
---|
1497 | * @param string $raw_key The key prior to sanitization. |
---|
1498 | */ |
---|
1499 | return apply_filters( 'sanitize_key', $key, $raw_key ); |
---|
1500 | } |
---|
1501 | |
---|
1502 | /** |
---|
1503 | * Sanitizes a title, or returns a fallback title. |
---|
1504 | * |
---|
1505 | * Specifically, HTML and PHP tags are stripped. Further actions can be added |
---|
1506 | * via the plugin API. If $title is empty and $fallback_title is set, the latter |
---|
1507 | * will be used. |
---|
1508 | * |
---|
1509 | * @since 1.0.0 |
---|
1510 | * |
---|
1511 | * @param string $title The string to be sanitized. |
---|
1512 | * @param string $fallback_title Optional. A title to use if $title is empty. |
---|
1513 | * @param string $context Optional. The operation for which the string is sanitized |
---|
1514 | * @return string The sanitized string. |
---|
1515 | */ |
---|
1516 | function sanitize_title( $title, $fallback_title = '', $context = 'save' ) { |
---|
1517 | $raw_title = $title; |
---|
1518 | |
---|
1519 | if ( 'save' == $context ) |
---|
1520 | $title = remove_accents($title); |
---|
1521 | |
---|
1522 | /** |
---|
1523 | * Filter a sanitized title string. |
---|
1524 | * |
---|
1525 | * @since 1.2.0 |
---|
1526 | * |
---|
1527 | * @param string $title Sanitized title. |
---|
1528 | * @param string $raw_title The title prior to sanitization. |
---|
1529 | * @param string $context The context for which the title is being sanitized. |
---|
1530 | */ |
---|
1531 | $title = apply_filters( 'sanitize_title', $title, $raw_title, $context ); |
---|
1532 | |
---|
1533 | if ( '' === $title || false === $title ) |
---|
1534 | $title = $fallback_title; |
---|
1535 | |
---|
1536 | return $title; |
---|
1537 | } |
---|
1538 | |
---|
1539 | /** |
---|
1540 | * Sanitizes a title with the 'query' context. |
---|
1541 | * |
---|
1542 | * Used for querying the database for a value from URL. |
---|
1543 | * |
---|
1544 | * @since 3.1.0 |
---|
1545 | * |
---|
1546 | * @param string $title The string to be sanitized. |
---|
1547 | * @return string The sanitized string. |
---|
1548 | */ |
---|
1549 | function sanitize_title_for_query( $title ) { |
---|
1550 | return sanitize_title( $title, '', 'query' ); |
---|
1551 | } |
---|
1552 | |
---|
1553 | /** |
---|
1554 | * Sanitizes a title, replacing whitespace and a few other characters with dashes. |
---|
1555 | * |
---|
1556 | * Limits the output to alphanumeric characters, underscore (_) and dash (-). |
---|
1557 | * Whitespace becomes a dash. |
---|
1558 | * |
---|
1559 | * @since 1.2.0 |
---|
1560 | * |
---|
1561 | * @param string $title The title to be sanitized. |
---|
1562 | * @param string $raw_title Optional. Not used. |
---|
1563 | * @param string $context Optional. The operation for which the string is sanitized. |
---|
1564 | * @return string The sanitized title. |
---|
1565 | */ |
---|
1566 | function sanitize_title_with_dashes( $title, $raw_title = '', $context = 'display' ) { |
---|
1567 | $title = strip_tags($title); |
---|
1568 | // Preserve escaped octets. |
---|
1569 | $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title); |
---|
1570 | // Remove percent signs that are not part of an octet. |
---|
1571 | $title = str_replace('%', '', $title); |
---|
1572 | // Restore octets. |
---|
1573 | $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title); |
---|
1574 | |
---|
1575 | if (seems_utf8($title)) { |
---|
1576 | if (function_exists('mb_strtolower')) { |
---|
1577 | $title = mb_strtolower($title, 'UTF-8'); |
---|
1578 | } |
---|
1579 | $title = utf8_uri_encode($title, 200); |
---|
1580 | } |
---|
1581 | |
---|
1582 | $title = strtolower($title); |
---|
1583 | $title = preg_replace('/&.+?;/', '', $title); // kill entities |
---|
1584 | $title = str_replace('.', '-', $title); |
---|
1585 | |
---|
1586 | if ( 'save' == $context ) { |
---|
1587 | // Convert nbsp, ndash and mdash to hyphens |
---|
1588 | $title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title ); |
---|
1589 | |
---|
1590 | // Strip these characters entirely |
---|
1591 | $title = str_replace( array( |
---|
1592 | // iexcl and iquest |
---|
1593 | '%c2%a1', '%c2%bf', |
---|
1594 | // angle quotes |
---|
1595 | '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba', |
---|
1596 | // curly quotes |
---|
1597 | '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d', |
---|
1598 | '%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f', |
---|
1599 | // copy, reg, deg, hellip and trade |
---|
1600 | '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2', |
---|
1601 | // acute accents |
---|
1602 | '%c2%b4', '%cb%8a', '%cc%81', '%cd%81', |
---|
1603 | // grave accent, macron, caron |
---|
1604 | '%cc%80', '%cc%84', '%cc%8c', |
---|
1605 | ), '', $title ); |
---|
1606 | |
---|
1607 | // Convert times to x |
---|
1608 | $title = str_replace( '%c3%97', 'x', $title ); |
---|
1609 | } |
---|
1610 | |
---|
1611 | $title = preg_replace('/[^%a-z0-9 _-]/', '', $title); |
---|
1612 | $title = preg_replace('/\s+/', '-', $title); |
---|
1613 | $title = preg_replace('|-+|', '-', $title); |
---|
1614 | $title = trim($title, '-'); |
---|
1615 | |
---|
1616 | return $title; |
---|
1617 | } |
---|
1618 | |
---|
1619 | /** |
---|
1620 | * Ensures a string is a valid SQL 'order by' clause. |
---|
1621 | * |
---|
1622 | * Accepts one or more columns, with or without a sort order (ASC / DESC). |
---|
1623 | * e.g. 'column_1', 'column_1, column_2', 'column_1 ASC, column_2 DESC' etc. |
---|
1624 | * |
---|
1625 | * Also accepts 'RAND()'. |
---|
1626 | * |
---|
1627 | * @since 2.5.1 |
---|
1628 | * |
---|
1629 | * @param string $orderby Order by clause to be validated. |
---|
1630 | * @return string|false Returns $orderby if valid, false otherwise. |
---|
1631 | */ |
---|
1632 | function sanitize_sql_orderby( $orderby ) { |
---|
1633 | if ( preg_match( '/^\s*(([a-z0-9_]+|`[a-z0-9_]+`)(\s+(ASC|DESC))?\s*(,\s*(?=[a-z0-9_`])|$))+$/i', $orderby ) || preg_match( '/^\s*RAND\(\s*\)\s*$/i', $orderby ) ) { |
---|
1634 | return $orderby; |
---|
1635 | } |
---|
1636 | return false; |
---|
1637 | } |
---|
1638 | |
---|
1639 | /** |
---|
1640 | * Sanitizes an HTML classname to ensure it only contains valid characters. |
---|
1641 | * |
---|
1642 | * Strips the string down to A-Z,a-z,0-9,_,-. If this results in an empty |
---|
1643 | * string then it will return the alternative value supplied. |
---|
1644 | * |
---|
1645 | * @todo Expand to support the full range of CDATA that a class attribute can contain. |
---|
1646 | * |
---|
1647 | * @since 2.8.0 |
---|
1648 | * |
---|
1649 | * @param string $class The classname to be sanitized |
---|
1650 | * @param string $fallback Optional. The value to return if the sanitization ends up as an empty string. |
---|
1651 | * Defaults to an empty string. |
---|
1652 | * @return string The sanitized value |
---|
1653 | */ |
---|
1654 | function sanitize_html_class( $class, $fallback = '' ) { |
---|
1655 | //Strip out any % encoded octets |
---|
1656 | $sanitized = preg_replace( '|%[a-fA-F0-9][a-fA-F0-9]|', '', $class ); |
---|
1657 | |
---|
1658 | //Limit to A-Z,a-z,0-9,_,- |
---|
1659 | $sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $sanitized ); |
---|
1660 | |
---|
1661 | if ( '' == $sanitized && $fallback ) { |
---|
1662 | return sanitize_html_class( $fallback ); |
---|
1663 | } |
---|
1664 | /** |
---|
1665 | * Filter a sanitized HTML class string. |
---|
1666 | * |
---|
1667 | * @since 2.8.0 |
---|
1668 | * |
---|
1669 | * @param string $sanitized The sanitized HTML class. |
---|
1670 | * @param string $class HTML class before sanitization. |
---|
1671 | * @param string $fallback The fallback string. |
---|
1672 | */ |
---|
1673 | return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback ); |
---|
1674 | } |
---|
1675 | |
---|
1676 | /** |
---|
1677 | * Converts lone & characters into `&` (a.k.a. `&`) |
---|
1678 | * |
---|
1679 | * @since 0.71 |
---|
1680 | * |
---|
1681 | * @param string $content String of characters to be converted. |
---|
1682 | * @param string $deprecated Not used. |
---|
1683 | * @return string Converted string. |
---|
1684 | */ |
---|
1685 | function convert_chars( $content, $deprecated = '' ) { |
---|
1686 | if ( ! empty( $deprecated ) ) { |
---|
1687 | _deprecated_argument( __FUNCTION__, '0.71' ); |
---|
1688 | } |
---|
1689 | |
---|
1690 | if ( strpos( $content, '&' ) !== false ) { |
---|
1691 | $content = preg_replace( '/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content ); |
---|
1692 | } |
---|
1693 | |
---|
1694 | return $content; |
---|
1695 | } |
---|
1696 | |
---|
1697 | /** |
---|
1698 | * Converts invalid Unicode references range to valid range. |
---|
1699 | * |
---|
1700 | * @since 4.3.0 |
---|
1701 | * |
---|
1702 | * @param string $content String with entities that need converting. |
---|
1703 | * @return string Converted string. |
---|
1704 | */ |
---|
1705 | function convert_invalid_entities( $content ) { |
---|
1706 | $wp_htmltranswinuni = array( |
---|
1707 | '€' => '€', // the Euro sign |
---|
1708 | '' => '', |
---|
1709 | '‚' => '‚', // these are Windows CP1252 specific characters |
---|
1710 | 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers |
---|
1711 | '„' => '„', |
---|
1712 | '…' => '…', |
---|
1713 | '†' => '†', |
---|
1714 | '‡' => '‡', |
---|
1715 | 'ˆ' => 'ˆ', |
---|
1716 | '‰' => '‰', |
---|
1717 | 'Š' => 'Š', |
---|
1718 | '‹' => '‹', |
---|
1719 | 'Œ' => 'Œ', |
---|
1720 | '' => '', |
---|
1721 | 'Ž' => 'Ž', |
---|
1722 | '' => '', |
---|
1723 | '' => '', |
---|
1724 | '‘' => '‘', |
---|
1725 | '’' => '’', |
---|
1726 | '“' => '“', |
---|
1727 | '”' => '”', |
---|
1728 | '•' => '•', |
---|
1729 | '–' => '–', |
---|
1730 | '—' => '—', |
---|
1731 | '˜' => '˜', |
---|
1732 | '™' => '™', |
---|
1733 | 'š' => 'š', |
---|
1734 | '›' => '›', |
---|
1735 | 'œ' => 'œ', |
---|
1736 | '' => '', |
---|
1737 | 'ž' => 'ž', |
---|
1738 | 'Ÿ' => 'Ÿ' |
---|
1739 | ); |
---|
1740 | |
---|
1741 | if ( strpos( $content, '' ) !== false ) { |
---|
1742 | $content = strtr( $content, $wp_htmltranswinuni ); |
---|
1743 | } |
---|
1744 | |
---|
1745 | return $content; |
---|
1746 | } |
---|
1747 | |
---|
1748 | /** |
---|
1749 | * Balances tags if forced to, or if the 'use_balanceTags' option is set to true. |
---|
1750 | * |
---|
1751 | * @since 0.71 |
---|
1752 | * |
---|
1753 | * @param string $text Text to be balanced |
---|
1754 | * @param bool $force If true, forces balancing, ignoring the value of the option. Default false. |
---|
1755 | * @return string Balanced text |
---|
1756 | */ |
---|
1757 | function balanceTags( $text, $force = false ) { |
---|
1758 | if ( $force || get_option('use_balanceTags') == 1 ) { |
---|
1759 | return force_balance_tags( $text ); |
---|
1760 | } else { |
---|
1761 | return $text; |
---|
1762 | } |
---|
1763 | } |
---|
1764 | |
---|
1765 | /** |
---|
1766 | * Balances tags of string using a modified stack. |
---|
1767 | * |
---|
1768 | * @since 2.0.4 |
---|
1769 | * |
---|
1770 | * @author Leonard Lin <leonard@acm.org> |
---|
1771 | * @license GPL |
---|
1772 | * @copyright November 4, 2001 |
---|
1773 | * @version 1.1 |
---|
1774 | * @todo Make better - change loop condition to $text in 1.2 |
---|
1775 | * @internal Modified by Scott Reilly (coffee2code) 02 Aug 2004 |
---|
1776 | * 1.1 Fixed handling of append/stack pop order of end text |
---|
1777 | * Added Cleaning Hooks |
---|
1778 | * 1.0 First Version |
---|
1779 | * |
---|
1780 | * @param string $text Text to be balanced. |
---|
1781 | * @return string Balanced text. |
---|
1782 | */ |
---|
1783 | function force_balance_tags( $text ) { |
---|
1784 | $tagstack = array(); |
---|
1785 | $stacksize = 0; |
---|
1786 | $tagqueue = ''; |
---|
1787 | $newtext = ''; |
---|
1788 | // Known single-entity/self-closing tags |
---|
1789 | $single_tags = array( 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param', 'source' ); |
---|
1790 | // Tags that can be immediately nested within themselves |
---|
1791 | $nestable_tags = array( 'blockquote', 'div', 'object', 'q', 'span' ); |
---|
1792 | |
---|
1793 | // WP bug fix for comments - in case you REALLY meant to type '< !--' |
---|
1794 | $text = str_replace('< !--', '< !--', $text); |
---|
1795 | // WP bug fix for LOVE <3 (and other situations with '<' before a number) |
---|
1796 | $text = preg_replace('#<([0-9]{1})#', '<$1', $text); |
---|
1797 | |
---|
1798 | while ( preg_match("/<(\/?[\w:]*)\s*([^>]*)>/", $text, $regex) ) { |
---|
1799 | $newtext .= $tagqueue; |
---|
1800 | |
---|
1801 | $i = strpos($text, $regex[0]); |
---|
1802 | $l = strlen($regex[0]); |
---|
1803 | |
---|
1804 | // clear the shifter |
---|
1805 | $tagqueue = ''; |
---|
1806 | // Pop or Push |
---|
1807 | if ( isset($regex[1][0]) && '/' == $regex[1][0] ) { // End Tag |
---|
1808 | $tag = strtolower(substr($regex[1],1)); |
---|
1809 | // if too many closing tags |
---|
1810 | if ( $stacksize <= 0 ) { |
---|
1811 | $tag = ''; |
---|
1812 | // or close to be safe $tag = '/' . $tag; |
---|
1813 | } |
---|
1814 | // if stacktop value = tag close value then pop |
---|
1815 | elseif ( $tagstack[$stacksize - 1] == $tag ) { // found closing tag |
---|
1816 | $tag = '</' . $tag . '>'; // Close Tag |
---|
1817 | // Pop |
---|
1818 | array_pop( $tagstack ); |
---|
1819 | $stacksize--; |
---|
1820 | } else { // closing tag not at top, search for it |
---|
1821 | for ( $j = $stacksize-1; $j >= 0; $j-- ) { |
---|
1822 | if ( $tagstack[$j] == $tag ) { |
---|
1823 | // add tag to tagqueue |
---|
1824 | for ( $k = $stacksize-1; $k >= $j; $k--) { |
---|
1825 | $tagqueue .= '</' . array_pop( $tagstack ) . '>'; |
---|
1826 | $stacksize--; |
---|
1827 | } |
---|
1828 | break; |
---|
1829 | } |
---|
1830 | } |
---|
1831 | $tag = ''; |
---|
1832 | } |
---|
1833 | } else { // Begin Tag |
---|
1834 | $tag = strtolower($regex[1]); |
---|
1835 | |
---|
1836 | // Tag Cleaning |
---|
1837 | |
---|
1838 | // If it's an empty tag "< >", do nothing |
---|
1839 | if ( '' == $tag ) { |
---|
1840 | // do nothing |
---|
1841 | } |
---|
1842 | // ElseIf it presents itself as a self-closing tag... |
---|
1843 | elseif ( substr( $regex[2], -1 ) == '/' ) { |
---|
1844 | // ...but it isn't a known single-entity self-closing tag, then don't let it be treated as such and |
---|
1845 | // immediately close it with a closing tag (the tag will encapsulate no text as a result) |
---|
1846 | if ( ! in_array( $tag, $single_tags ) ) |
---|
1847 | $regex[2] = trim( substr( $regex[2], 0, -1 ) ) . "></$tag"; |
---|
1848 | } |
---|
1849 | // ElseIf it's a known single-entity tag but it doesn't close itself, do so |
---|
1850 | elseif ( in_array($tag, $single_tags) ) { |
---|
1851 | $regex[2] .= '/'; |
---|
1852 | } |
---|
1853 | // Else it's not a single-entity tag |
---|
1854 | else { |
---|
1855 | // If the top of the stack is the same as the tag we want to push, close previous tag |
---|
1856 | if ( $stacksize > 0 && !in_array($tag, $nestable_tags) && $tagstack[$stacksize - 1] == $tag ) { |
---|
1857 | $tagqueue = '</' . array_pop( $tagstack ) . '>'; |
---|
1858 | $stacksize--; |
---|
1859 | } |
---|
1860 | $stacksize = array_push( $tagstack, $tag ); |
---|
1861 | } |
---|
1862 | |
---|
1863 | // Attributes |
---|
1864 | $attributes = $regex[2]; |
---|
1865 | if ( ! empty( $attributes ) && $attributes[0] != '>' ) |
---|
1866 | $attributes = ' ' . $attributes; |
---|
1867 | |
---|
1868 | $tag = '<' . $tag . $attributes . '>'; |
---|
1869 | //If already queuing a close tag, then put this tag on, too |
---|
1870 | if ( !empty($tagqueue) ) { |
---|
1871 | $tagqueue .= $tag; |
---|
1872 | $tag = ''; |
---|
1873 | } |
---|
1874 | } |
---|
1875 | $newtext .= substr($text, 0, $i) . $tag; |
---|
1876 | $text = substr($text, $i + $l); |
---|
1877 | } |
---|
1878 | |
---|
1879 | // Clear Tag Queue |
---|
1880 | $newtext .= $tagqueue; |
---|
1881 | |
---|
1882 | // Add Remaining text |
---|
1883 | $newtext .= $text; |
---|
1884 | |
---|
1885 | // Empty Stack |
---|
1886 | while( $x = array_pop($tagstack) ) |
---|
1887 | $newtext .= '</' . $x . '>'; // Add remaining tags to close |
---|
1888 | |
---|
1889 | // WP fix for the bug with HTML comments |
---|
1890 | $newtext = str_replace("< !--","<!--",$newtext); |
---|
1891 | $newtext = str_replace("< !--","< !--",$newtext); |
---|
1892 | |
---|
1893 | return $newtext; |
---|
1894 | } |
---|
1895 | |
---|
1896 | /** |
---|
1897 | * Acts on text which is about to be edited. |
---|
1898 | * |
---|
1899 | * The $content is run through esc_textarea(), which uses htmlspecialchars() |
---|
1900 | * to convert special characters to HTML entities. If $richedit is set to true, |
---|
1901 | * it is simply a holder for the 'format_to_edit' filter. |
---|
1902 | * |
---|
1903 | * @since 0.71 |
---|
1904 | * @since 4.4.0 The `$richedit` parameter was renamed to `$rich_text` for clarity. |
---|
1905 | * |
---|
1906 | * @param string $content The text about to be edited. |
---|
1907 | * @param bool $rich_text Optional. Whether `$content` should be considered rich text, |
---|
1908 | * in which case it would not be passed through esc_textarea(). |
---|
1909 | * Default false. |
---|
1910 | * @return string The text after the filter (and possibly htmlspecialchars()) has been run. |
---|
1911 | */ |
---|
1912 | function format_to_edit( $content, $rich_text = false ) { |
---|
1913 | /** |
---|
1914 | * Filter the text to be formatted for editing. |
---|
1915 | * |
---|
1916 | * @since 1.2.0 |
---|
1917 | * |
---|
1918 | * @param string $content The text, prior to formatting for editing. |
---|
1919 | */ |
---|
1920 | $content = apply_filters( 'format_to_edit', $content ); |
---|
1921 | if ( ! $rich_text ) |
---|
1922 | $content = esc_textarea( $content ); |
---|
1923 | return $content; |
---|
1924 | } |
---|
1925 | |
---|
1926 | /** |
---|
1927 | * Add leading zeros when necessary. |
---|
1928 | * |
---|
1929 | * If you set the threshold to '4' and the number is '10', then you will get |
---|
1930 | * back '0010'. If you set the threshold to '4' and the number is '5000', then you |
---|
1931 | * will get back '5000'. |
---|
1932 | * |
---|
1933 | * Uses sprintf to append the amount of zeros based on the $threshold parameter |
---|
1934 | * and the size of the number. If the number is large enough, then no zeros will |
---|
1935 | * be appended. |
---|
1936 | * |
---|
1937 | * @since 0.71 |
---|
1938 | * |
---|
1939 | * @param int $number Number to append zeros to if not greater than threshold. |
---|
1940 | * @param int $threshold Digit places number needs to be to not have zeros added. |
---|
1941 | * @return string Adds leading zeros to number if needed. |
---|
1942 | */ |
---|
1943 | function zeroise( $number, $threshold ) { |
---|
1944 | return sprintf( '%0' . $threshold . 's', $number ); |
---|
1945 | } |
---|
1946 | |
---|
1947 | /** |
---|
1948 | * Adds backslashes before letters and before a number at the start of a string. |
---|
1949 | * |
---|
1950 | * @since 0.71 |
---|
1951 | * |
---|
1952 | * @param string $string Value to which backslashes will be added. |
---|
1953 | * @return string String with backslashes inserted. |
---|
1954 | */ |
---|
1955 | function backslashit( $string ) { |
---|
1956 | if ( isset( $string[0] ) && $string[0] >= '0' && $string[0] <= '9' ) |
---|
1957 | $string = '\\\\' . $string; |
---|
1958 | return addcslashes( $string, 'A..Za..z' ); |
---|
1959 | } |
---|
1960 | |
---|
1961 | /** |
---|
1962 | * Appends a trailing slash. |
---|
1963 | * |
---|
1964 | * Will remove trailing forward and backslashes if it exists already before adding |
---|
1965 | * a trailing forward slash. This prevents double slashing a string or path. |
---|
1966 | * |
---|
1967 | * The primary use of this is for paths and thus should be used for paths. It is |
---|
1968 | * not restricted to paths and offers no specific path support. |
---|
1969 | * |
---|
1970 | * @since 1.2.0 |
---|
1971 | * |
---|
1972 | * @param string $string What to add the trailing slash to. |
---|
1973 | * @return string String with trailing slash added. |
---|
1974 | */ |
---|
1975 | function trailingslashit( $string ) { |
---|
1976 | return untrailingslashit( $string ) . '/'; |
---|
1977 | } |
---|
1978 | |
---|
1979 | /** |
---|
1980 | * Removes trailing forward slashes and backslashes if they exist. |
---|
1981 | * |
---|
1982 | * The primary use of this is for paths and thus should be used for paths. It is |
---|
1983 | * not restricted to paths and offers no specific path support. |
---|
1984 | * |
---|
1985 | * @since 2.2.0 |
---|
1986 | * |
---|
1987 | * @param string $string What to remove the trailing slashes from. |
---|
1988 | * @return string String without the trailing slashes. |
---|
1989 | */ |
---|
1990 | function untrailingslashit( $string ) { |
---|
1991 | return rtrim( $string, '/\\' ); |
---|
1992 | } |
---|
1993 | |
---|
1994 | /** |
---|
1995 | * Adds slashes to escape strings. |
---|
1996 | * |
---|
1997 | * Slashes will first be removed if magic_quotes_gpc is set, see {@link |
---|
1998 | * http://www.php.net/magic_quotes} for more details. |
---|
1999 | * |
---|
2000 | * @since 0.71 |
---|
2001 | * |
---|
2002 | * @param string $gpc The string returned from HTTP request data. |
---|
2003 | * @return string Returns a string escaped with slashes. |
---|
2004 | */ |
---|
2005 | function addslashes_gpc($gpc) { |
---|
2006 | if ( get_magic_quotes_gpc() ) |
---|
2007 | $gpc = stripslashes($gpc); |
---|
2008 | |
---|
2009 | return wp_slash($gpc); |
---|
2010 | } |
---|
2011 | |
---|
2012 | /** |
---|
2013 | * Navigates through an array, object, or scalar, and removes slashes from the values. |
---|
2014 | * |
---|
2015 | * @since 2.0.0 |
---|
2016 | * |
---|
2017 | * @param mixed $value The value to be stripped. |
---|
2018 | * @return mixed Stripped value. |
---|
2019 | */ |
---|
2020 | function stripslashes_deep( $value ) { |
---|
2021 | return map_deep( $value, 'stripslashes_from_strings_only' ); |
---|
2022 | } |
---|
2023 | |
---|
2024 | /** |
---|
2025 | * Callback function for `stripslashes_deep()` which strips slashes from strings. |
---|
2026 | * |
---|
2027 | * @since 4.4.0 |
---|
2028 | * |
---|
2029 | * @param mixed $value The array or string to be stripped. |
---|
2030 | * @return mixed $value The stripped value. |
---|
2031 | */ |
---|
2032 | function stripslashes_from_strings_only( $value ) { |
---|
2033 | return is_string( $value ) ? stripslashes( $value ) : $value; |
---|
2034 | } |
---|
2035 | |
---|
2036 | /** |
---|
2037 | * Navigates through an array, object, or scalar, and encodes the values to be used in a URL. |
---|
2038 | * |
---|
2039 | * @since 2.2.0 |
---|
2040 | * |
---|
2041 | * @param mixed $value The array or string to be encoded. |
---|
2042 | * @return mixed $value The encoded value. |
---|
2043 | */ |
---|
2044 | function urlencode_deep( $value ) { |
---|
2045 | return map_deep( $value, 'urlencode' ); |
---|
2046 | } |
---|
2047 | |
---|
2048 | /** |
---|
2049 | * Navigates through an array, object, or scalar, and raw-encodes the values to be used in a URL. |
---|
2050 | * |
---|
2051 | * @since 3.4.0 |
---|
2052 | * |
---|
2053 | * @param mixed $value The array or string to be encoded. |
---|
2054 | * @return mixed $value The encoded value. |
---|
2055 | */ |
---|
2056 | function rawurlencode_deep( $value ) { |
---|
2057 | return map_deep( $value, 'rawurlencode' ); |
---|
2058 | } |
---|
2059 | |
---|
2060 | /** |
---|
2061 | * Navigates through an array, object, or scalar, and decodes URL-encoded values |
---|
2062 | * |
---|
2063 | * @since 4.4.0 |
---|
2064 | * |
---|
2065 | * @param mixed $value The array or string to be decoded. |
---|
2066 | * @return mixed $value The decoded value. |
---|
2067 | */ |
---|
2068 | function urldecode_deep( $value ) { |
---|
2069 | return map_deep( $value, 'urldecode' ); |
---|
2070 | } |
---|
2071 | |
---|
2072 | /** |
---|
2073 | * Converts email addresses characters to HTML entities to block spam bots. |
---|
2074 | * |
---|
2075 | * @since 0.71 |
---|
2076 | * |
---|
2077 | * @param string $email_address Email address. |
---|
2078 | * @param int $hex_encoding Optional. Set to 1 to enable hex encoding. |
---|
2079 | * @return string Converted email address. |
---|
2080 | */ |
---|
2081 | function antispambot( $email_address, $hex_encoding = 0 ) { |
---|
2082 | $email_no_spam_address = ''; |
---|
2083 | for ( $i = 0, $len = strlen( $email_address ); $i < $len; $i++ ) { |
---|
2084 | $j = rand( 0, 1 + $hex_encoding ); |
---|
2085 | if ( $j == 0 ) { |
---|
2086 | $email_no_spam_address .= '&#' . ord( $email_address[$i] ) . ';'; |
---|
2087 | } elseif ( $j == 1 ) { |
---|
2088 | $email_no_spam_address .= $email_address[$i]; |
---|
2089 | } elseif ( $j == 2 ) { |
---|
2090 | $email_no_spam_address .= '%' . zeroise( dechex( ord( $email_address[$i] ) ), 2 ); |
---|
2091 | } |
---|
2092 | } |
---|
2093 | |
---|
2094 | return str_replace( '@', '@', $email_no_spam_address ); |
---|
2095 | } |
---|
2096 | |
---|
2097 | /** |
---|
2098 | * Callback to convert URI match to HTML A element. |
---|
2099 | * |
---|
2100 | * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link |
---|
2101 | * make_clickable()}. |
---|
2102 | * |
---|
2103 | * @since 2.3.2 |
---|
2104 | * @access private |
---|
2105 | * |
---|
2106 | * @param array $matches Single Regex Match. |
---|
2107 | * @return string HTML A element with URI address. |
---|
2108 | */ |
---|
2109 | function _make_url_clickable_cb( $matches ) { |
---|
2110 | $url = $matches[2]; |
---|
2111 | |
---|
2112 | if ( ')' == $matches[3] && strpos( $url, '(' ) ) { |
---|
2113 | // If the trailing character is a closing parethesis, and the URL has an opening parenthesis in it, add the closing parenthesis to the URL. |
---|
2114 | // Then we can let the parenthesis balancer do its thing below. |
---|
2115 | $url .= $matches[3]; |
---|
2116 | $suffix = ''; |
---|
2117 | } else { |
---|
2118 | $suffix = $matches[3]; |
---|
2119 | } |
---|
2120 | |
---|
2121 | // Include parentheses in the URL only if paired |
---|
2122 | while ( substr_count( $url, '(' ) < substr_count( $url, ')' ) ) { |
---|
2123 | $suffix = strrchr( $url, ')' ) . $suffix; |
---|
2124 | $url = substr( $url, 0, strrpos( $url, ')' ) ); |
---|
2125 | } |
---|
2126 | |
---|
2127 | $url = esc_url($url); |
---|
2128 | if ( empty($url) ) |
---|
2129 | return $matches[0]; |
---|
2130 | |
---|
2131 | return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $suffix; |
---|
2132 | } |
---|
2133 | |
---|
2134 | /** |
---|
2135 | * Callback to convert URL match to HTML A element. |
---|
2136 | * |
---|
2137 | * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link |
---|
2138 | * make_clickable()}. |
---|
2139 | * |
---|
2140 | * @since 2.3.2 |
---|
2141 | * @access private |
---|
2142 | * |
---|
2143 | * @param array $matches Single Regex Match. |
---|
2144 | * @return string HTML A element with URL address. |
---|
2145 | */ |
---|
2146 | function _make_web_ftp_clickable_cb( $matches ) { |
---|
2147 | $ret = ''; |
---|
2148 | $dest = $matches[2]; |
---|
2149 | $dest = 'http://' . $dest; |
---|
2150 | |
---|
2151 | // removed trailing [.,;:)] from URL |
---|
2152 | if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) { |
---|
2153 | $ret = substr($dest, -1); |
---|
2154 | $dest = substr($dest, 0, strlen($dest)-1); |
---|
2155 | } |
---|
2156 | |
---|
2157 | $dest = esc_url($dest); |
---|
2158 | if ( empty($dest) ) |
---|
2159 | return $matches[0]; |
---|
2160 | |
---|
2161 | return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret"; |
---|
2162 | } |
---|
2163 | |
---|
2164 | /** |
---|
2165 | * Callback to convert email address match to HTML A element. |
---|
2166 | * |
---|
2167 | * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link |
---|
2168 | * make_clickable()}. |
---|
2169 | * |
---|
2170 | * @since 2.3.2 |
---|
2171 | * @access private |
---|
2172 | * |
---|
2173 | * @param array $matches Single Regex Match. |
---|
2174 | * @return string HTML A element with email address. |
---|
2175 | */ |
---|
2176 | function _make_email_clickable_cb( $matches ) { |
---|
2177 | $email = $matches[2] . '@' . $matches[3]; |
---|
2178 | return $matches[1] . "<a href=\"mailto:$email\">$email</a>"; |
---|
2179 | } |
---|
2180 | |
---|
2181 | /** |
---|
2182 | * Convert plaintext URI to HTML links. |
---|
2183 | * |
---|
2184 | * Converts URI, www and ftp, and email addresses. Finishes by fixing links |
---|
2185 | * within links. |
---|
2186 | * |
---|
2187 | * @since 0.71 |
---|
2188 | * |
---|
2189 | * @param string $text Content to convert URIs. |
---|
2190 | * @return string Content with converted URIs. |
---|
2191 | */ |
---|
2192 | function make_clickable( $text ) { |
---|
2193 | $r = ''; |
---|
2194 | $textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags |
---|
2195 | $nested_code_pre = 0; // Keep track of how many levels link is nested inside <pre> or <code> |
---|
2196 | foreach ( $textarr as $piece ) { |
---|
2197 | |
---|
2198 | if ( preg_match( '|^<code[\s>]|i', $piece ) || preg_match( '|^<pre[\s>]|i', $piece ) ) |
---|
2199 | $nested_code_pre++; |
---|
2200 | elseif ( ( '</code>' === strtolower( $piece ) || '</pre>' === strtolower( $piece ) ) && $nested_code_pre ) |
---|
2201 | $nested_code_pre--; |
---|
2202 | |
---|
2203 | if ( $nested_code_pre || empty( $piece ) || ( $piece[0] === '<' && ! preg_match( '|^<\s*[\w]{1,20}+://|', $piece ) ) ) { |
---|
2204 | $r .= $piece; |
---|
2205 | continue; |
---|
2206 | } |
---|
2207 | |
---|
2208 | // Long strings might contain expensive edge cases ... |
---|
2209 | if ( 10000 < strlen( $piece ) ) { |
---|
2210 | // ... break it up |
---|
2211 | foreach ( _split_str_by_whitespace( $piece, 2100 ) as $chunk ) { // 2100: Extra room for scheme and leading and trailing paretheses |
---|
2212 | if ( 2101 < strlen( $chunk ) ) { |
---|
2213 | $r .= $chunk; // Too big, no whitespace: bail. |
---|
2214 | } else { |
---|
2215 | $r .= make_clickable( $chunk ); |
---|
2216 | } |
---|
2217 | } |
---|
2218 | } else { |
---|
2219 | $ret = " $piece "; // Pad with whitespace to simplify the regexes |
---|
2220 | |
---|
2221 | $url_clickable = '~ |
---|
2222 | ([\\s(<.,;:!?]) # 1: Leading whitespace, or punctuation |
---|
2223 | ( # 2: URL |
---|
2224 | [\\w]{1,20}+:// # Scheme and hier-part prefix |
---|
2225 | (?=\S{1,2000}\s) # Limit to URLs less than about 2000 characters long |
---|
2226 | [\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]*+ # Non-punctuation URL character |
---|
2227 | (?: # Unroll the Loop: Only allow puctuation URL character if followed by a non-punctuation URL character |
---|
2228 | [\'.,;:!?)] # Punctuation URL character |
---|
2229 | [\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]++ # Non-punctuation URL character |
---|
2230 | )* |
---|
2231 | ) |
---|
2232 | (\)?) # 3: Trailing closing parenthesis (for parethesis balancing post processing) |
---|
2233 | ~xS'; // The regex is a non-anchored pattern and does not have a single fixed starting character. |
---|
2234 | // Tell PCRE to spend more time optimizing since, when used on a page load, it will probably be used several times. |
---|
2235 | |
---|
2236 | $ret = preg_replace_callback( $url_clickable, '_make_url_clickable_cb', $ret ); |
---|
2237 | |
---|
2238 | $ret = preg_replace_callback( '#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret ); |
---|
2239 | $ret = preg_replace_callback( '#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret ); |
---|
2240 | |
---|
2241 | $ret = substr( $ret, 1, -1 ); // Remove our whitespace padding. |
---|
2242 | $r .= $ret; |
---|
2243 | } |
---|
2244 | } |
---|
2245 | |
---|
2246 | // Cleanup of accidental links within links |
---|
2247 | return preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r ); |
---|
2248 | } |
---|
2249 | |
---|
2250 | /** |
---|
2251 | * Breaks a string into chunks by splitting at whitespace characters. |
---|
2252 | * The length of each returned chunk is as close to the specified length goal as possible, |
---|
2253 | * with the caveat that each chunk includes its trailing delimiter. |
---|
2254 | * Chunks longer than the goal are guaranteed to not have any inner whitespace. |
---|
2255 | * |
---|
2256 | * Joining the returned chunks with empty delimiters reconstructs the input string losslessly. |
---|
2257 | * |
---|
2258 | * Input string must have no null characters (or eventual transformations on output chunks must not care about null characters) |
---|
2259 | * |
---|
2260 | * _split_str_by_whitespace( "1234 67890 1234 67890a cd 1234 890 123456789 1234567890a 45678 1 3 5 7 90 ", 10 ) == |
---|
2261 | * array ( |
---|
2262 | * 0 => '1234 67890 ', // 11 characters: Perfect split |
---|
2263 | * 1 => '1234 ', // 5 characters: '1234 67890a' was too long |
---|
2264 | * 2 => '67890a cd ', // 10 characters: '67890a cd 1234' was too long |
---|
2265 | * 3 => '1234 890 ', // 11 characters: Perfect split |
---|
2266 | * 4 => '123456789 ', // 10 characters: '123456789 1234567890a' was too long |
---|
2267 | * 5 => '1234567890a ', // 12 characters: Too long, but no inner whitespace on which to split |
---|
2268 | * 6 => ' 45678 ', // 11 characters: Perfect split |
---|
2269 | * 7 => '1 3 5 7 90 ', // 11 characters: End of $string |
---|
2270 | * ); |
---|
2271 | * |
---|
2272 | * @since 3.4.0 |
---|
2273 | * @access private |
---|
2274 | * |
---|
2275 | * @param string $string The string to split. |
---|
2276 | * @param int $goal The desired chunk length. |
---|
2277 | * @return array Numeric array of chunks. |
---|
2278 | */ |
---|
2279 | function _split_str_by_whitespace( $string, $goal ) { |
---|
2280 | $chunks = array(); |
---|
2281 | |
---|
2282 | $string_nullspace = strtr( $string, "\r\n\t\v\f ", "\000\000\000\000\000\000" ); |
---|
2283 | |
---|
2284 | while ( $goal < strlen( $string_nullspace ) ) { |
---|
2285 | $pos = strrpos( substr( $string_nullspace, 0, $goal + 1 ), "\000" ); |
---|
2286 | |
---|
2287 | if ( false === $pos ) { |
---|
2288 | $pos = strpos( $string_nullspace, "\000", $goal + 1 ); |
---|
2289 | if ( false === $pos ) { |
---|
2290 | break; |
---|
2291 | } |
---|
2292 | } |
---|
2293 | |
---|
2294 | $chunks[] = substr( $string, 0, $pos + 1 ); |
---|
2295 | $string = substr( $string, $pos + 1 ); |
---|
2296 | $string_nullspace = substr( $string_nullspace, $pos + 1 ); |
---|
2297 | } |
---|
2298 | |
---|
2299 | if ( $string ) { |
---|
2300 | $chunks[] = $string; |
---|
2301 | } |
---|
2302 | |
---|
2303 | return $chunks; |
---|
2304 | } |
---|
2305 | |
---|
2306 | /** |
---|
2307 | * Adds rel nofollow string to all HTML A elements in content. |
---|
2308 | * |
---|
2309 | * @since 1.5.0 |
---|
2310 | * |
---|
2311 | * @param string $text Content that may contain HTML A elements. |
---|
2312 | * @return string Converted content. |
---|
2313 | */ |
---|
2314 | function wp_rel_nofollow( $text ) { |
---|
2315 | // This is a pre save filter, so text is already escaped. |
---|
2316 | $text = stripslashes($text); |
---|
2317 | $text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text); |
---|
2318 | return wp_slash( $text ); |
---|
2319 | } |
---|
2320 | |
---|
2321 | /** |
---|
2322 | * Callback to add rel=nofollow string to HTML A element. |
---|
2323 | * |
---|
2324 | * Will remove already existing rel="nofollow" and rel='nofollow' from the |
---|
2325 | * string to prevent from invalidating (X)HTML. |
---|
2326 | * |
---|
2327 | * @since 2.3.0 |
---|
2328 | * |
---|
2329 | * @param array $matches Single Match |
---|
2330 | * @return string HTML A Element with rel nofollow. |
---|
2331 | */ |
---|
2332 | function wp_rel_nofollow_callback( $matches ) { |
---|
2333 | $text = $matches[1]; |
---|
2334 | $atts = shortcode_parse_atts( $matches[1] ); |
---|
2335 | $rel = 'nofollow'; |
---|
2336 | if ( ! empty( $atts['rel'] ) ) { |
---|
2337 | $parts = array_map( 'trim', explode( ' ', $atts['rel'] ) ); |
---|
2338 | if ( false === array_search( 'nofollow', $parts ) ) { |
---|
2339 | $parts[] = 'nofollow'; |
---|
2340 | } |
---|
2341 | $rel = implode( ' ', $parts ); |
---|
2342 | unset( $atts['rel'] ); |
---|
2343 | |
---|
2344 | $html = ''; |
---|
2345 | foreach ( $atts as $name => $value ) { |
---|
2346 | $html .= "{$name}=\"$value\" "; |
---|
2347 | } |
---|
2348 | $text = trim( $html ); |
---|
2349 | } |
---|
2350 | return "<a $text rel=\"$rel\">"; |
---|
2351 | } |
---|
2352 | |
---|
2353 | /** |
---|
2354 | * Convert one smiley code to the icon graphic file equivalent. |
---|
2355 | * |
---|
2356 | * Callback handler for {@link convert_smilies()}. |
---|
2357 | * Looks up one smiley code in the $wpsmiliestrans global array and returns an |
---|
2358 | * `<img>` string for that smiley. |
---|
2359 | * |
---|
2360 | * @since 2.8.0 |
---|
2361 | * |
---|
2362 | * @global array $wpsmiliestrans |
---|
2363 | * |
---|
2364 | * @param array $matches Single match. Smiley code to convert to image. |
---|
2365 | * @return string Image string for smiley. |
---|
2366 | */ |
---|
2367 | function translate_smiley( $matches ) { |
---|
2368 | global $wpsmiliestrans; |
---|
2369 | |
---|
2370 | if ( count( $matches ) == 0 ) |
---|
2371 | return ''; |
---|
2372 | |
---|
2373 | $smiley = trim( reset( $matches ) ); |
---|
2374 | $img = $wpsmiliestrans[ $smiley ]; |
---|
2375 | |
---|
2376 | $matches = array(); |
---|
2377 | $ext = preg_match( '/\.([^.]+)$/', $img, $matches ) ? strtolower( $matches[1] ) : false; |
---|
2378 | $image_exts = array( 'jpg', 'jpeg', 'jpe', 'gif', 'png' ); |
---|
2379 | |
---|
2380 | // Don't convert smilies that aren't images - they're probably emoji. |
---|
2381 | if ( ! in_array( $ext, $image_exts ) ) { |
---|
2382 | return $img; |
---|
2383 | } |
---|
2384 | |
---|
2385 | /** |
---|
2386 | * Filter the Smiley image URL before it's used in the image element. |
---|
2387 | * |
---|
2388 | * @since 2.9.0 |
---|
2389 | * |
---|
2390 | * @param string $smiley_url URL for the smiley image. |
---|
2391 | * @param string $img Filename for the smiley image. |
---|
2392 | * @param string $site_url Site URL, as returned by site_url(). |
---|
2393 | */ |
---|
2394 | $src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() ); |
---|
2395 | |
---|
2396 | return sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', esc_url( $src_url ), esc_attr( $smiley ) ); |
---|
2397 | } |
---|
2398 | |
---|
2399 | /** |
---|
2400 | * Convert text equivalent of smilies to images. |
---|
2401 | * |
---|
2402 | * Will only convert smilies if the option 'use_smilies' is true and the global |
---|
2403 | * used in the function isn't empty. |
---|
2404 | * |
---|
2405 | * @since 0.71 |
---|
2406 | * |
---|
2407 | * @global string|array $wp_smiliessearch |
---|
2408 | * |
---|
2409 | * @param string $text Content to convert smilies from text. |
---|
2410 | * @return string Converted content with text smilies replaced with images. |
---|
2411 | */ |
---|
2412 | function convert_smilies( $text ) { |
---|
2413 | global $wp_smiliessearch; |
---|
2414 | $output = ''; |
---|
2415 | if ( get_option( 'use_smilies' ) && ! empty( $wp_smiliessearch ) ) { |
---|
2416 | // HTML loop taken from texturize function, could possible be consolidated |
---|
2417 | $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // capture the tags as well as in between |
---|
2418 | $stop = count( $textarr );// loop stuff |
---|
2419 | |
---|
2420 | // Ignore proessing of specific tags |
---|
2421 | $tags_to_ignore = 'code|pre|style|script|textarea'; |
---|
2422 | $ignore_block_element = ''; |
---|
2423 | |
---|
2424 | for ( $i = 0; $i < $stop; $i++ ) { |
---|
2425 | $content = $textarr[$i]; |
---|
2426 | |
---|
2427 | // If we're in an ignore block, wait until we find its closing tag |
---|
2428 | if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) { |
---|
2429 | $ignore_block_element = $matches[1]; |
---|
2430 | } |
---|
2431 | |
---|
2432 | // If it's not a tag and not in ignore block |
---|
2433 | if ( '' == $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) { |
---|
2434 | $content = preg_replace_callback( $wp_smiliessearch, 'translate_smiley', $content ); |
---|
2435 | } |
---|
2436 | |
---|
2437 | // did we exit ignore block |
---|
2438 | if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) { |
---|
2439 | $ignore_block_element = ''; |
---|
2440 | } |
---|
2441 | |
---|
2442 | $output .= $content; |
---|
2443 | } |
---|
2444 | } else { |
---|
2445 | // return default text. |
---|
2446 | $output = $text; |
---|
2447 | } |
---|
2448 | return $output; |
---|
2449 | } |
---|
2450 | |
---|
2451 | /** |
---|
2452 | * Verifies that an email is valid. |
---|
2453 | * |
---|
2454 | * Does not grok i18n domains. Not RFC compliant. |
---|
2455 | * |
---|
2456 | * @since 0.71 |
---|
2457 | * |
---|
2458 | * @param string $email Email address to verify. |
---|
2459 | * @param bool $deprecated Deprecated. |
---|
2460 | * @return string|bool Either false or the valid email address. |
---|
2461 | */ |
---|
2462 | function is_email( $email, $deprecated = false ) { |
---|
2463 | $email=trim($email); |
---|
2464 | if ( ! empty( $deprecated ) ) |
---|
2465 | _deprecated_argument( __FUNCTION__, '3.0' ); |
---|
2466 | |
---|
2467 | // Test for the minimum length the email can be |
---|
2468 | if ( strlen( $email ) < 3 ) { |
---|
2469 | /** |
---|
2470 | * Filter whether an email address is valid. |
---|
2471 | * |
---|
2472 | * This filter is evaluated under several different contexts, such as 'email_too_short', |
---|
2473 | * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits', |
---|
2474 | * 'domain_no_periods', 'sub_hyphen_limits', 'sub_invalid_chars', or no specific context. |
---|
2475 | * |
---|
2476 | * @since 2.8.0 |
---|
2477 | * |
---|
2478 | * @param bool $is_email Whether the email address has passed the is_email() checks. Default false. |
---|
2479 | * @param string $email The email address being checked. |
---|
2480 | * @param string $context Context under which the email was tested. |
---|
2481 | */ |
---|
2482 | return apply_filters( 'is_email', false, $email, 'email_too_short' ); |
---|
2483 | } |
---|
2484 | |
---|
2485 | // Test for an @ character after the first position |
---|
2486 | if ( strpos( $email, '@', 1 ) === false ) { |
---|
2487 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2488 | return apply_filters( 'is_email', false, $email, 'email_no_at' ); |
---|
2489 | } |
---|
2490 | |
---|
2491 | // Split out the local and domain parts |
---|
2492 | list( $local, $domain ) = explode( '@', $email, 2 ); |
---|
2493 | |
---|
2494 | // LOCAL PART |
---|
2495 | // Test for invalid characters |
---|
2496 | if ( !preg_match( '/^[a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]+$/', $local ) ) { |
---|
2497 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2498 | return apply_filters( 'is_email', false, $email, 'local_invalid_chars' ); |
---|
2499 | } |
---|
2500 | |
---|
2501 | // DOMAIN PART |
---|
2502 | // Test for sequences of periods |
---|
2503 | if ( preg_match( '/\.{2,}/', $domain ) ) { |
---|
2504 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2505 | return apply_filters( 'is_email', false, $email, 'domain_period_sequence' ); |
---|
2506 | } |
---|
2507 | |
---|
2508 | // Test for leading and trailing periods and whitespace |
---|
2509 | if ( trim( $domain, " \t\n\r\0\x0B." ) !== $domain ) { |
---|
2510 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2511 | return apply_filters( 'is_email', false, $email, 'domain_period_limits' ); |
---|
2512 | } |
---|
2513 | |
---|
2514 | // Split the domain into subs |
---|
2515 | $subs = explode( '.', $domain ); |
---|
2516 | |
---|
2517 | // Assume the domain will have at least two subs |
---|
2518 | if ( 2 > count( $subs ) ) { |
---|
2519 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2520 | return apply_filters( 'is_email', false, $email, 'domain_no_periods' ); |
---|
2521 | } |
---|
2522 | |
---|
2523 | // Loop through each sub |
---|
2524 | foreach ( $subs as $sub ) { |
---|
2525 | // Test for leading and trailing hyphens and whitespace |
---|
2526 | if ( trim( $sub, " \t\n\r\0\x0B-" ) !== $sub ) { |
---|
2527 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2528 | return apply_filters( 'is_email', false, $email, 'sub_hyphen_limits' ); |
---|
2529 | } |
---|
2530 | |
---|
2531 | // Test for invalid characters |
---|
2532 | if ( !preg_match('/^[a-z0-9-]+$/i', $sub ) ) { |
---|
2533 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2534 | return apply_filters( 'is_email', false, $email, 'sub_invalid_chars' ); |
---|
2535 | } |
---|
2536 | } |
---|
2537 | |
---|
2538 | // Congratulations your email made it! |
---|
2539 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2540 | return apply_filters( 'is_email', $email, $email, null ); |
---|
2541 | } |
---|
2542 | |
---|
2543 | /** |
---|
2544 | * Convert to ASCII from email subjects. |
---|
2545 | * |
---|
2546 | * @since 1.2.0 |
---|
2547 | * |
---|
2548 | * @param string $string Subject line |
---|
2549 | * @return string Converted string to ASCII |
---|
2550 | */ |
---|
2551 | function wp_iso_descrambler( $string ) { |
---|
2552 | /* this may only work with iso-8859-1, I'm afraid */ |
---|
2553 | if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) { |
---|
2554 | return $string; |
---|
2555 | } else { |
---|
2556 | $subject = str_replace('_', ' ', $matches[2]); |
---|
2557 | return preg_replace_callback( '#\=([0-9a-f]{2})#i', '_wp_iso_convert', $subject ); |
---|
2558 | } |
---|
2559 | } |
---|
2560 | |
---|
2561 | /** |
---|
2562 | * Helper function to convert hex encoded chars to ASCII |
---|
2563 | * |
---|
2564 | * @since 3.1.0 |
---|
2565 | * @access private |
---|
2566 | * |
---|
2567 | * @param array $match The preg_replace_callback matches array |
---|
2568 | * @return string Converted chars |
---|
2569 | */ |
---|
2570 | function _wp_iso_convert( $match ) { |
---|
2571 | return chr( hexdec( strtolower( $match[1] ) ) ); |
---|
2572 | } |
---|
2573 | |
---|
2574 | /** |
---|
2575 | * Returns a date in the GMT equivalent. |
---|
2576 | * |
---|
2577 | * Requires and returns a date in the Y-m-d H:i:s format. If there is a |
---|
2578 | * timezone_string available, the date is assumed to be in that timezone, |
---|
2579 | * otherwise it simply subtracts the value of the 'gmt_offset' option. Return |
---|
2580 | * format can be overridden using the $format parameter. |
---|
2581 | * |
---|
2582 | * @since 1.2.0 |
---|
2583 | * |
---|
2584 | * @param string $string The date to be converted. |
---|
2585 | * @param string $format The format string for the returned date (default is Y-m-d H:i:s) |
---|
2586 | * @return string GMT version of the date provided. |
---|
2587 | */ |
---|
2588 | function get_gmt_from_date( $string, $format = 'Y-m-d H:i:s' ) { |
---|
2589 | $tz = get_option( 'timezone_string' ); |
---|
2590 | if ( $tz ) { |
---|
2591 | $datetime = date_create( $string, new DateTimeZone( $tz ) ); |
---|
2592 | if ( ! $datetime ) { |
---|
2593 | return gmdate( $format, 0 ); |
---|
2594 | } |
---|
2595 | $datetime->setTimezone( new DateTimeZone( 'UTC' ) ); |
---|
2596 | $string_gmt = $datetime->format( $format ); |
---|
2597 | } else { |
---|
2598 | if ( ! preg_match( '#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches ) ) { |
---|
2599 | $datetime = strtotime( $string ); |
---|
2600 | if ( false === $datetime ) { |
---|
2601 | return gmdate( $format, 0 ); |
---|
2602 | } |
---|
2603 | return gmdate( $format, $datetime ); |
---|
2604 | } |
---|
2605 | $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] ); |
---|
2606 | $string_gmt = gmdate( $format, $string_time - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); |
---|
2607 | } |
---|
2608 | return $string_gmt; |
---|
2609 | } |
---|
2610 | |
---|
2611 | /** |
---|
2612 | * Converts a GMT date into the correct format for the blog. |
---|
2613 | * |
---|
2614 | * Requires and returns a date in the Y-m-d H:i:s format. If there is a |
---|
2615 | * timezone_string available, the returned date is in that timezone, otherwise |
---|
2616 | * it simply adds the value of gmt_offset. Return format can be overridden |
---|
2617 | * using the $format parameter |
---|
2618 | * |
---|
2619 | * @since 1.2.0 |
---|
2620 | * |
---|
2621 | * @param string $string The date to be converted. |
---|
2622 | * @param string $format The format string for the returned date (default is Y-m-d H:i:s) |
---|
2623 | * @return string Formatted date relative to the timezone / GMT offset. |
---|
2624 | */ |
---|
2625 | function get_date_from_gmt( $string, $format = 'Y-m-d H:i:s' ) { |
---|
2626 | $tz = get_option( 'timezone_string' ); |
---|
2627 | if ( $tz ) { |
---|
2628 | $datetime = date_create( $string, new DateTimeZone( 'UTC' ) ); |
---|
2629 | if ( ! $datetime ) |
---|
2630 | return date( $format, 0 ); |
---|
2631 | $datetime->setTimezone( new DateTimeZone( $tz ) ); |
---|
2632 | $string_localtime = $datetime->format( $format ); |
---|
2633 | } else { |
---|
2634 | if ( ! preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches) ) |
---|
2635 | return date( $format, 0 ); |
---|
2636 | $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] ); |
---|
2637 | $string_localtime = gmdate( $format, $string_time + get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); |
---|
2638 | } |
---|
2639 | return $string_localtime; |
---|
2640 | } |
---|
2641 | |
---|
2642 | /** |
---|
2643 | * Computes an offset in seconds from an iso8601 timezone. |
---|
2644 | * |
---|
2645 | * @since 1.5.0 |
---|
2646 | * |
---|
2647 | * @param string $timezone Either 'Z' for 0 offset or '±hhmm'. |
---|
2648 | * @return int|float The offset in seconds. |
---|
2649 | */ |
---|
2650 | function iso8601_timezone_to_offset( $timezone ) { |
---|
2651 | // $timezone is either 'Z' or '[+|-]hhmm' |
---|
2652 | if ($timezone == 'Z') { |
---|
2653 | $offset = 0; |
---|
2654 | } else { |
---|
2655 | $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1; |
---|
2656 | $hours = intval(substr($timezone, 1, 2)); |
---|
2657 | $minutes = intval(substr($timezone, 3, 4)) / 60; |
---|
2658 | $offset = $sign * HOUR_IN_SECONDS * ($hours + $minutes); |
---|
2659 | } |
---|
2660 | return $offset; |
---|
2661 | } |
---|
2662 | |
---|
2663 | /** |
---|
2664 | * Converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]. |
---|
2665 | * |
---|
2666 | * @since 1.5.0 |
---|
2667 | * |
---|
2668 | * @param string $date_string Date and time in ISO 8601 format {@link http://en.wikipedia.org/wiki/ISO_8601}. |
---|
2669 | * @param string $timezone Optional. If set to GMT returns the time minus gmt_offset. Default is 'user'. |
---|
2670 | * @return string The date and time in MySQL DateTime format - Y-m-d H:i:s. |
---|
2671 | */ |
---|
2672 | function iso8601_to_datetime( $date_string, $timezone = 'user' ) { |
---|
2673 | $timezone = strtolower($timezone); |
---|
2674 | |
---|
2675 | if ($timezone == 'gmt') { |
---|
2676 | |
---|
2677 | preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits); |
---|
2678 | |
---|
2679 | if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset |
---|
2680 | $offset = iso8601_timezone_to_offset($date_bits[7]); |
---|
2681 | } else { // we don't have a timezone, so we assume user local timezone (not server's!) |
---|
2682 | $offset = HOUR_IN_SECONDS * get_option('gmt_offset'); |
---|
2683 | } |
---|
2684 | |
---|
2685 | $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]); |
---|
2686 | $timestamp -= $offset; |
---|
2687 | |
---|
2688 | return gmdate('Y-m-d H:i:s', $timestamp); |
---|
2689 | |
---|
2690 | } elseif ($timezone == 'user') { |
---|
2691 | return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string); |
---|
2692 | } |
---|
2693 | } |
---|
2694 | |
---|
2695 | /** |
---|
2696 | * Adds a element attributes to open links in new windows. |
---|
2697 | * |
---|
2698 | * Comment text in popup windows should be filtered through this. Right now it's |
---|
2699 | * a moderately dumb function, ideally it would detect whether a target or rel |
---|
2700 | * attribute was already there and adjust its actions accordingly. |
---|
2701 | * |
---|
2702 | * @since 0.71 |
---|
2703 | * |
---|
2704 | * @param string $text Content to replace links to open in a new window. |
---|
2705 | * @return string Content that has filtered links. |
---|
2706 | */ |
---|
2707 | function popuplinks( $text ) { |
---|
2708 | $text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text); |
---|
2709 | return $text; |
---|
2710 | } |
---|
2711 | |
---|
2712 | /** |
---|
2713 | * Strips out all characters that are not allowable in an email. |
---|
2714 | * |
---|
2715 | * @since 1.5.0 |
---|
2716 | * |
---|
2717 | * @param string $email Email address to filter. |
---|
2718 | * @return string Filtered email address. |
---|
2719 | */ |
---|
2720 | function sanitize_email( $email ) { |
---|
2721 | // Test for the minimum length the email can be |
---|
2722 | if ( strlen( $email ) < 3 ) { |
---|
2723 | /** |
---|
2724 | * Filter a sanitized email address. |
---|
2725 | * |
---|
2726 | * This filter is evaluated under several contexts, including 'email_too_short', |
---|
2727 | * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits', |
---|
2728 | * 'domain_no_periods', 'domain_no_valid_subs', or no context. |
---|
2729 | * |
---|
2730 | * @since 2.8.0 |
---|
2731 | * |
---|
2732 | * @param string $email The sanitized email address. |
---|
2733 | * @param string $email The email address, as provided to sanitize_email(). |
---|
2734 | * @param string $message A message to pass to the user. |
---|
2735 | */ |
---|
2736 | return apply_filters( 'sanitize_email', '', $email, 'email_too_short' ); |
---|
2737 | } |
---|
2738 | |
---|
2739 | // Test for an @ character after the first position |
---|
2740 | if ( strpos( $email, '@', 1 ) === false ) { |
---|
2741 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2742 | return apply_filters( 'sanitize_email', '', $email, 'email_no_at' ); |
---|
2743 | } |
---|
2744 | |
---|
2745 | // Split out the local and domain parts |
---|
2746 | list( $local, $domain ) = explode( '@', $email, 2 ); |
---|
2747 | |
---|
2748 | // LOCAL PART |
---|
2749 | // Test for invalid characters |
---|
2750 | $local = preg_replace( '/[^a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]/', '', $local ); |
---|
2751 | if ( '' === $local ) { |
---|
2752 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2753 | return apply_filters( 'sanitize_email', '', $email, 'local_invalid_chars' ); |
---|
2754 | } |
---|
2755 | |
---|
2756 | // DOMAIN PART |
---|
2757 | // Test for sequences of periods |
---|
2758 | $domain = preg_replace( '/\.{2,}/', '', $domain ); |
---|
2759 | if ( '' === $domain ) { |
---|
2760 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2761 | return apply_filters( 'sanitize_email', '', $email, 'domain_period_sequence' ); |
---|
2762 | } |
---|
2763 | |
---|
2764 | // Test for leading and trailing periods and whitespace |
---|
2765 | $domain = trim( $domain, " \t\n\r\0\x0B." ); |
---|
2766 | if ( '' === $domain ) { |
---|
2767 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2768 | return apply_filters( 'sanitize_email', '', $email, 'domain_period_limits' ); |
---|
2769 | } |
---|
2770 | |
---|
2771 | // Split the domain into subs |
---|
2772 | $subs = explode( '.', $domain ); |
---|
2773 | |
---|
2774 | // Assume the domain will have at least two subs |
---|
2775 | if ( 2 > count( $subs ) ) { |
---|
2776 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2777 | return apply_filters( 'sanitize_email', '', $email, 'domain_no_periods' ); |
---|
2778 | } |
---|
2779 | |
---|
2780 | // Create an array that will contain valid subs |
---|
2781 | $new_subs = array(); |
---|
2782 | |
---|
2783 | // Loop through each sub |
---|
2784 | foreach ( $subs as $sub ) { |
---|
2785 | // Test for leading and trailing hyphens |
---|
2786 | $sub = trim( $sub, " \t\n\r\0\x0B-" ); |
---|
2787 | |
---|
2788 | // Test for invalid characters |
---|
2789 | $sub = preg_replace( '/[^a-z0-9-]+/i', '', $sub ); |
---|
2790 | |
---|
2791 | // If there's anything left, add it to the valid subs |
---|
2792 | if ( '' !== $sub ) { |
---|
2793 | $new_subs[] = $sub; |
---|
2794 | } |
---|
2795 | } |
---|
2796 | |
---|
2797 | // If there aren't 2 or more valid subs |
---|
2798 | if ( 2 > count( $new_subs ) ) { |
---|
2799 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2800 | return apply_filters( 'sanitize_email', '', $email, 'domain_no_valid_subs' ); |
---|
2801 | } |
---|
2802 | |
---|
2803 | // Join valid subs into the new domain |
---|
2804 | $domain = join( '.', $new_subs ); |
---|
2805 | |
---|
2806 | // Put the email back together |
---|
2807 | $email = $local . '@' . $domain; |
---|
2808 | |
---|
2809 | // Congratulations your email made it! |
---|
2810 | /** This filter is documented in wp-includes/formatting.php */ |
---|
2811 | return apply_filters( 'sanitize_email', $email, $email, null ); |
---|
2812 | } |
---|
2813 | |
---|
2814 | /** |
---|
2815 | * Determines the difference between two timestamps. |
---|
2816 | * |
---|
2817 | * The difference is returned in a human readable format such as "1 hour", |
---|
2818 | * "5 mins", "2 days". |
---|
2819 | * |
---|
2820 | * @since 1.5.0 |
---|
2821 | * |
---|
2822 | * @param int $from Unix timestamp from which the difference begins. |
---|
2823 | * @param int $to Optional. Unix timestamp to end the time difference. Default becomes time() if not set. |
---|
2824 | * @return string Human readable time difference. |
---|
2825 | */ |
---|
2826 | function human_time_diff( $from, $to = '' ) { |
---|
2827 | if ( empty( $to ) ) { |
---|
2828 | $to = time(); |
---|
2829 | } |
---|
2830 | |
---|
2831 | $diff = (int) abs( $to - $from ); |
---|
2832 | |
---|
2833 | if ( $diff < HOUR_IN_SECONDS ) { |
---|
2834 | $mins = round( $diff / MINUTE_IN_SECONDS ); |
---|
2835 | if ( $mins <= 1 ) |
---|
2836 | $mins = 1; |
---|
2837 | /* translators: min=minute */ |
---|
2838 | $since = sprintf( _n( '%s min', '%s mins', $mins ), $mins ); |
---|
2839 | } elseif ( $diff < DAY_IN_SECONDS && $diff >= HOUR_IN_SECONDS ) { |
---|
2840 | $hours = round( $diff / HOUR_IN_SECONDS ); |
---|
2841 | if ( $hours <= 1 ) |
---|
2842 | $hours = 1; |
---|
2843 | $since = sprintf( _n( '%s hour', '%s hours', $hours ), $hours ); |
---|
2844 | } elseif ( $diff < WEEK_IN_SECONDS && $diff >= DAY_IN_SECONDS ) { |
---|
2845 | $days = round( $diff / DAY_IN_SECONDS ); |
---|
2846 | if ( $days <= 1 ) |
---|
2847 | $days = 1; |
---|
2848 | $since = sprintf( _n( '%s day', '%s days', $days ), $days ); |
---|
2849 | } elseif ( $diff < MONTH_IN_SECONDS && $diff >= WEEK_IN_SECONDS ) { |
---|
2850 | $weeks = round( $diff / WEEK_IN_SECONDS ); |
---|
2851 | if ( $weeks <= 1 ) |
---|
2852 | $weeks = 1; |
---|
2853 | $since = sprintf( _n( '%s week', '%s weeks', $weeks ), $weeks ); |
---|
2854 | } elseif ( $diff < YEAR_IN_SECONDS && $diff >= MONTH_IN_SECONDS ) { |
---|
2855 | $months = round( $diff / MONTH_IN_SECONDS ); |
---|
2856 | if ( $months <= 1 ) |
---|
2857 | $months = 1; |
---|
2858 | $since = sprintf( _n( '%s month', '%s months', $months ), $months ); |
---|
2859 | } elseif ( $diff >= YEAR_IN_SECONDS ) { |
---|
2860 | $years = round( $diff / YEAR_IN_SECONDS ); |
---|
2861 | if ( $years <= 1 ) |
---|
2862 | $years = 1; |
---|
2863 | $since = sprintf( _n( '%s year', '%s years', $years ), $years ); |
---|
2864 | } |
---|
2865 | |
---|
2866 | /** |
---|
2867 | * Filter the human readable difference between two timestamps. |
---|
2868 | * |
---|
2869 | * @since 4.0.0 |
---|
2870 | * |
---|
2871 | * @param string $since The difference in human readable text. |
---|
2872 | * @param int $diff The difference in seconds. |
---|
2873 | * @param int $from Unix timestamp from which the difference begins. |
---|
2874 | * @param int $to Unix timestamp to end the time difference. |
---|
2875 | */ |
---|
2876 | return apply_filters( 'human_time_diff', $since, $diff, $from, $to ); |
---|
2877 | } |
---|
2878 | |
---|
2879 | /** |
---|
2880 | * Generates an excerpt from the content, if needed. |
---|
2881 | * |
---|
2882 | * The excerpt word amount will be 55 words and if the amount is greater than |
---|
2883 | * that, then the string ' […]' will be appended to the excerpt. If the string |
---|
2884 | * is less than 55 words, then the content will be returned as is. |
---|
2885 | * |
---|
2886 | * The 55 word limit can be modified by plugins/themes using the excerpt_length filter |
---|
2887 | * The ' […]' string can be modified by plugins/themes using the excerpt_more filter |
---|
2888 | * |
---|
2889 | * @since 1.5.0 |
---|
2890 | * |
---|
2891 | * @param string $text Optional. The excerpt. If set to empty, an excerpt is generated. |
---|
2892 | * @return string The excerpt. |
---|
2893 | */ |
---|
2894 | function wp_trim_excerpt( $text = '' ) { |
---|
2895 | $raw_excerpt = $text; |
---|
2896 | if ( '' == $text ) { |
---|
2897 | $text = get_the_content(''); |
---|
2898 | |
---|
2899 | $text = strip_shortcodes( $text ); |
---|
2900 | |
---|
2901 | /** This filter is documented in wp-includes/post-template.php */ |
---|
2902 | $text = apply_filters( 'the_content', $text ); |
---|
2903 | $text = str_replace(']]>', ']]>', $text); |
---|
2904 | |
---|
2905 | /** |
---|
2906 | * Filter the number of words in an excerpt. |
---|
2907 | * |
---|
2908 | * @since 2.7.0 |
---|
2909 | * |
---|
2910 | * @param int $number The number of words. Default 55. |
---|
2911 | */ |
---|
2912 | $excerpt_length = apply_filters( 'excerpt_length', 55 ); |
---|
2913 | /** |
---|
2914 | * Filter the string in the "more" link displayed after a trimmed excerpt. |
---|
2915 | * |
---|
2916 | * @since 2.9.0 |
---|
2917 | * |
---|
2918 | * @param string $more_string The string shown within the more link. |
---|
2919 | */ |
---|
2920 | $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); |
---|
2921 | $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); |
---|
2922 | } |
---|
2923 | /** |
---|
2924 | * Filter the trimmed excerpt string. |
---|
2925 | * |
---|
2926 | * @since 2.8.0 |
---|
2927 | * |
---|
2928 | * @param string $text The trimmed text. |
---|
2929 | * @param string $raw_excerpt The text prior to trimming. |
---|
2930 | */ |
---|
2931 | return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt ); |
---|
2932 | } |
---|
2933 | |
---|
2934 | /** |
---|
2935 | * Trims text to a certain number of words. |
---|
2936 | * |
---|
2937 | * This function is localized. For languages that count 'words' by the individual |
---|
2938 | * character (such as East Asian languages), the $num_words argument will apply |
---|
2939 | * to the number of individual characters. |
---|
2940 | * |
---|
2941 | * @since 3.3.0 |
---|
2942 | * |
---|
2943 | * @param string $text Text to trim. |
---|
2944 | * @param int $num_words Number of words. Default 55. |
---|
2945 | * @param string $more Optional. What to append if $text needs to be trimmed. Default '…'. |
---|
2946 | * @return string Trimmed text. |
---|
2947 | */ |
---|
2948 | function wp_trim_words( $text, $num_words = 55, $more = null ) { |
---|
2949 | if ( null === $more ) { |
---|
2950 | $more = __( '…' ); |
---|
2951 | } |
---|
2952 | |
---|
2953 | $original_text = $text; |
---|
2954 | $text = wp_strip_all_tags( $text ); |
---|
2955 | |
---|
2956 | /* |
---|
2957 | * translators: If your word count is based on single characters (e.g. East Asian characters), |
---|
2958 | * enter 'characters_excluding_spaces' or 'characters_including_spaces'. Otherwise, enter 'words'. |
---|
2959 | * Do not translate into your own language. |
---|
2960 | */ |
---|
2961 | if ( strpos( _x( 'words', 'Word count type. Do not translate!' ), 'characters' ) === 0 && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) { |
---|
2962 | $text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' ); |
---|
2963 | preg_match_all( '/./u', $text, $words_array ); |
---|
2964 | $words_array = array_slice( $words_array[0], 0, $num_words + 1 ); |
---|
2965 | $sep = ''; |
---|
2966 | } else { |
---|
2967 | $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY ); |
---|
2968 | $sep = ' '; |
---|
2969 | } |
---|
2970 | |
---|
2971 | if ( count( $words_array ) > $num_words ) { |
---|
2972 | array_pop( $words_array ); |
---|
2973 | $text = implode( $sep, $words_array ); |
---|
2974 | $text = $text . $more; |
---|
2975 | } else { |
---|
2976 | $text = implode( $sep, $words_array ); |
---|
2977 | } |
---|
2978 | |
---|
2979 | /** |
---|
2980 | * Filter the text content after words have been trimmed. |
---|
2981 | * |
---|
2982 | * @since 3.3.0 |
---|
2983 | * |
---|
2984 | * @param string $text The trimmed text. |
---|
2985 | * @param int $num_words The number of words to trim the text to. Default 5. |
---|
2986 | * @param string $more An optional string to append to the end of the trimmed text, e.g. …. |
---|
2987 | * @param string $original_text The text before it was trimmed. |
---|
2988 | */ |
---|
2989 | return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text ); |
---|
2990 | } |
---|
2991 | |
---|
2992 | /** |
---|
2993 | * Converts named entities into numbered entities. |
---|
2994 | * |
---|
2995 | * @since 1.5.1 |
---|
2996 | * |
---|
2997 | * @param string $text The text within which entities will be converted. |
---|
2998 | * @return string Text with converted entities. |
---|
2999 | */ |
---|
3000 | function ent2ncr( $text ) { |
---|
3001 | |
---|
3002 | /** |
---|
3003 | * Filter text before named entities are converted into numbered entities. |
---|
3004 | * |
---|
3005 | * A non-null string must be returned for the filter to be evaluated. |
---|
3006 | * |
---|
3007 | * @since 3.3.0 |
---|
3008 | * |
---|
3009 | * @param null $converted_text The text to be converted. Default null. |
---|
3010 | * @param string $text The text prior to entity conversion. |
---|
3011 | */ |
---|
3012 | $filtered = apply_filters( 'pre_ent2ncr', null, $text ); |
---|
3013 | if ( null !== $filtered ) |
---|
3014 | return $filtered; |
---|
3015 | |
---|
3016 | $to_ncr = array( |
---|
3017 | '"' => '"', |
---|
3018 | '&' => '&', |
---|
3019 | '<' => '<', |
---|
3020 | '>' => '>', |
---|
3021 | '|' => '|', |
---|
3022 | ' ' => ' ', |
---|
3023 | '¡' => '¡', |
---|
3024 | '¢' => '¢', |
---|
3025 | '£' => '£', |
---|
3026 | '¤' => '¤', |
---|
3027 | '¥' => '¥', |
---|
3028 | '¦' => '¦', |
---|
3029 | '&brkbar;' => '¦', |
---|
3030 | '§' => '§', |
---|
3031 | '¨' => '¨', |
---|
3032 | '¨' => '¨', |
---|
3033 | '©' => '©', |
---|
3034 | 'ª' => 'ª', |
---|
3035 | '«' => '«', |
---|
3036 | '¬' => '¬', |
---|
3037 | '­' => '­', |
---|
3038 | '®' => '®', |
---|
3039 | '¯' => '¯', |
---|
3040 | '&hibar;' => '¯', |
---|
3041 | '°' => '°', |
---|
3042 | '±' => '±', |
---|
3043 | '²' => '²', |
---|
3044 | '³' => '³', |
---|
3045 | '´' => '´', |
---|
3046 | 'µ' => 'µ', |
---|
3047 | '¶' => '¶', |
---|
3048 | '·' => '·', |
---|
3049 | '¸' => '¸', |
---|
3050 | '¹' => '¹', |
---|
3051 | 'º' => 'º', |
---|
3052 | '»' => '»', |
---|
3053 | '¼' => '¼', |
---|
3054 | '½' => '½', |
---|
3055 | '¾' => '¾', |
---|
3056 | '¿' => '¿', |
---|
3057 | 'À' => 'À', |
---|
3058 | 'Á' => 'Á', |
---|
3059 | 'Â' => 'Â', |
---|
3060 | 'Ã' => 'Ã', |
---|
3061 | 'Ä' => 'Ä', |
---|
3062 | 'Å' => 'Å', |
---|
3063 | 'Æ' => 'Æ', |
---|
3064 | 'Ç' => 'Ç', |
---|
3065 | 'È' => 'È', |
---|
3066 | 'É' => 'É', |
---|
3067 | 'Ê' => 'Ê', |
---|
3068 | 'Ë' => 'Ë', |
---|
3069 | 'Ì' => 'Ì', |
---|
3070 | 'Í' => 'Í', |
---|
3071 | 'Î' => 'Î', |
---|
3072 | 'Ï' => 'Ï', |
---|
3073 | 'Ð' => 'Ð', |
---|
3074 | 'Ñ' => 'Ñ', |
---|
3075 | 'Ò' => 'Ò', |
---|
3076 | 'Ó' => 'Ó', |
---|
3077 | 'Ô' => 'Ô', |
---|
3078 | 'Õ' => 'Õ', |
---|
3079 | 'Ö' => 'Ö', |
---|
3080 | '×' => '×', |
---|
3081 | 'Ø' => 'Ø', |
---|
3082 | 'Ù' => 'Ù', |
---|
3083 | 'Ú' => 'Ú', |
---|
3084 | 'Û' => 'Û', |
---|
3085 | 'Ü' => 'Ü', |
---|
3086 | 'Ý' => 'Ý', |
---|
3087 | 'Þ' => 'Þ', |
---|
3088 | 'ß' => 'ß', |
---|
3089 | 'à' => 'à', |
---|
3090 | 'á' => 'á', |
---|
3091 | 'â' => 'â', |
---|
3092 | 'ã' => 'ã', |
---|
3093 | 'ä' => 'ä', |
---|
3094 | 'å' => 'å', |
---|
3095 | 'æ' => 'æ', |
---|
3096 | 'ç' => 'ç', |
---|
3097 | 'è' => 'è', |
---|
3098 | 'é' => 'é', |
---|
3099 | 'ê' => 'ê', |
---|
3100 | 'ë' => 'ë', |
---|
3101 | 'ì' => 'ì', |
---|
3102 | 'í' => 'í', |
---|
3103 | 'î' => 'î', |
---|
3104 | 'ï' => 'ï', |
---|
3105 | 'ð' => 'ð', |
---|
3106 | 'ñ' => 'ñ', |
---|
3107 | 'ò' => 'ò', |
---|
3108 | 'ó' => 'ó', |
---|
3109 | 'ô' => 'ô', |
---|
3110 | 'õ' => 'õ', |
---|
3111 | 'ö' => 'ö', |
---|
3112 | '÷' => '÷', |
---|
3113 | 'ø' => 'ø', |
---|
3114 | 'ù' => 'ù', |
---|
3115 | 'ú' => 'ú', |
---|
3116 | 'û' => 'û', |
---|
3117 | 'ü' => 'ü', |
---|
3118 | 'ý' => 'ý', |
---|
3119 | 'þ' => 'þ', |
---|
3120 | 'ÿ' => 'ÿ', |
---|
3121 | 'Œ' => 'Œ', |
---|
3122 | 'œ' => 'œ', |
---|
3123 | 'Š' => 'Š', |
---|
3124 | 'š' => 'š', |
---|
3125 | 'Ÿ' => 'Ÿ', |
---|
3126 | 'ƒ' => 'ƒ', |
---|
3127 | 'ˆ' => 'ˆ', |
---|
3128 | '˜' => '˜', |
---|
3129 | 'Α' => 'Α', |
---|
3130 | 'Β' => 'Β', |
---|
3131 | 'Γ' => 'Γ', |
---|
3132 | 'Δ' => 'Δ', |
---|
3133 | 'Ε' => 'Ε', |
---|
3134 | 'Ζ' => 'Ζ', |
---|
3135 | 'Η' => 'Η', |
---|
3136 | 'Θ' => 'Θ', |
---|
3137 | 'Ι' => 'Ι', |
---|
3138 | 'Κ' => 'Κ', |
---|
3139 | 'Λ' => 'Λ', |
---|
3140 | 'Μ' => 'Μ', |
---|
3141 | 'Ν' => 'Ν', |
---|
3142 | 'Ξ' => 'Ξ', |
---|
3143 | 'Ο' => 'Ο', |
---|
3144 | 'Π' => 'Π', |
---|
3145 | 'Ρ' => 'Ρ', |
---|
3146 | 'Σ' => 'Σ', |
---|
3147 | 'Τ' => 'Τ', |
---|
3148 | 'Υ' => 'Υ', |
---|
3149 | 'Φ' => 'Φ', |
---|
3150 | 'Χ' => 'Χ', |
---|
3151 | 'Ψ' => 'Ψ', |
---|
3152 | 'Ω' => 'Ω', |
---|
3153 | 'α' => 'α', |
---|
3154 | 'β' => 'β', |
---|
3155 | 'γ' => 'γ', |
---|
3156 | 'δ' => 'δ', |
---|
3157 | 'ε' => 'ε', |
---|
3158 | 'ζ' => 'ζ', |
---|
3159 | 'η' => 'η', |
---|
3160 | 'θ' => 'θ', |
---|
3161 | 'ι' => 'ι', |
---|
3162 | 'κ' => 'κ', |
---|
3163 | 'λ' => 'λ', |
---|
3164 | 'μ' => 'μ', |
---|
3165 | 'ν' => 'ν', |
---|
3166 | 'ξ' => 'ξ', |
---|
3167 | 'ο' => 'ο', |
---|
3168 | 'π' => 'π', |
---|
3169 | 'ρ' => 'ρ', |
---|
3170 | 'ς' => 'ς', |
---|
3171 | 'σ' => 'σ', |
---|
3172 | 'τ' => 'τ', |
---|
3173 | 'υ' => 'υ', |
---|
3174 | 'φ' => 'φ', |
---|
3175 | 'χ' => 'χ', |
---|
3176 | 'ψ' => 'ψ', |
---|
3177 | 'ω' => 'ω', |
---|
3178 | 'ϑ' => 'ϑ', |
---|
3179 | 'ϒ' => 'ϒ', |
---|
3180 | 'ϖ' => 'ϖ', |
---|
3181 | ' ' => ' ', |
---|
3182 | ' ' => ' ', |
---|
3183 | ' ' => ' ', |
---|
3184 | '‌' => '‌', |
---|
3185 | '‍' => '‍', |
---|
3186 | '‎' => '‎', |
---|
3187 | '‏' => '‏', |
---|
3188 | '–' => '–', |
---|
3189 | '—' => '—', |
---|
3190 | '‘' => '‘', |
---|
3191 | '’' => '’', |
---|
3192 | '‚' => '‚', |
---|
3193 | '“' => '“', |
---|
3194 | '”' => '”', |
---|
3195 | '„' => '„', |
---|
3196 | '†' => '†', |
---|
3197 | '‡' => '‡', |
---|
3198 | '•' => '•', |
---|
3199 | '…' => '…', |
---|
3200 | '‰' => '‰', |
---|
3201 | '′' => '′', |
---|
3202 | '″' => '″', |
---|
3203 | '‹' => '‹', |
---|
3204 | '›' => '›', |
---|
3205 | '‾' => '‾', |
---|
3206 | '⁄' => '⁄', |
---|
3207 | '€' => '€', |
---|
3208 | 'ℑ' => 'ℑ', |
---|
3209 | '℘' => '℘', |
---|
3210 | 'ℜ' => 'ℜ', |
---|
3211 | '™' => '™', |
---|
3212 | 'ℵ' => 'ℵ', |
---|
3213 | '↵' => '↵', |
---|
3214 | '⇐' => '⇐', |
---|
3215 | '⇑' => '⇑', |
---|
3216 | '⇒' => '⇒', |
---|
3217 | '⇓' => '⇓', |
---|
3218 | '⇔' => '⇔', |
---|
3219 | '∀' => '∀', |
---|
3220 | '∂' => '∂', |
---|
3221 | '∃' => '∃', |
---|
3222 | '∅' => '∅', |
---|
3223 | '∇' => '∇', |
---|
3224 | '∈' => '∈', |
---|
3225 | '∉' => '∉', |
---|
3226 | '∋' => '∋', |
---|
3227 | '∏' => '∏', |
---|
3228 | '∑' => '∑', |
---|
3229 | '−' => '−', |
---|
3230 | '∗' => '∗', |
---|
3231 | '√' => '√', |
---|
3232 | '∝' => '∝', |
---|
3233 | '∞' => '∞', |
---|
3234 | '∠' => '∠', |
---|
3235 | '∧' => '∧', |
---|
3236 | '∨' => '∨', |
---|
3237 | '∩' => '∩', |
---|
3238 | '∪' => '∪', |
---|
3239 | '∫' => '∫', |
---|
3240 | '∴' => '∴', |
---|
3241 | '∼' => '∼', |
---|
3242 | '≅' => '≅', |
---|
3243 | '≈' => '≈', |
---|
3244 | '≠' => '≠', |
---|
3245 | '≡' => '≡', |
---|
3246 | '≤' => '≤', |
---|
3247 | '≥' => '≥', |
---|
3248 | '⊂' => '⊂', |
---|
3249 | '⊃' => '⊃', |
---|
3250 | '⊄' => '⊄', |
---|
3251 | '⊆' => '⊆', |
---|
3252 | '⊇' => '⊇', |
---|
3253 | '⊕' => '⊕', |
---|
3254 | '⊗' => '⊗', |
---|
3255 | '⊥' => '⊥', |
---|
3256 | '⋅' => '⋅', |
---|
3257 | '⌈' => '⌈', |
---|
3258 | '⌉' => '⌉', |
---|
3259 | '⌊' => '⌊', |
---|
3260 | '⌋' => '⌋', |
---|
3261 | '⟨' => '〈', |
---|
3262 | '⟩' => '〉', |
---|
3263 | '←' => '←', |
---|
3264 | '↑' => '↑', |
---|
3265 | '→' => '→', |
---|
3266 | '↓' => '↓', |
---|
3267 | '↔' => '↔', |
---|
3268 | '◊' => '◊', |
---|
3269 | '♠' => '♠', |
---|
3270 | '♣' => '♣', |
---|
3271 | '♥' => '♥', |
---|
3272 | '♦' => '♦' |
---|
3273 | ); |
---|
3274 | |
---|
3275 | return str_replace( array_keys($to_ncr), array_values($to_ncr), $text ); |
---|
3276 | } |
---|
3277 | |
---|
3278 | /** |
---|
3279 | * Formats text for the editor. |
---|
3280 | * |
---|
3281 | * Generally the browsers treat everything inside a textarea as text, but |
---|
3282 | * it is still a good idea to HTML entity encode `<`, `>` and `&` in the content. |
---|
3283 | * |
---|
3284 | * The filter {@see 'format_for_editor'} is applied here. If `$text` is empty the |
---|
3285 | * filter will be applied to an empty string. |
---|
3286 | * |
---|
3287 | * @since 4.3.0 |
---|
3288 | * |
---|
3289 | * @param string $text The text to be formatted. |
---|
3290 | * @return string The formatted text after filter is applied. |
---|
3291 | */ |
---|
3292 | function format_for_editor( $text, $default_editor = null ) { |
---|
3293 | if ( $text ) { |
---|
3294 | $text = htmlspecialchars( $text, ENT_NOQUOTES, get_option( 'blog_charset' ) ); |
---|
3295 | } |
---|
3296 | |
---|
3297 | /** |
---|
3298 | * Filter the text after it is formatted for the editor. |
---|
3299 | * |
---|
3300 | * @since 4.3.0 |
---|
3301 | * |
---|
3302 | * @param string $text The formatted text. |
---|
3303 | */ |
---|
3304 | return apply_filters( 'format_for_editor', $text, $default_editor ); |
---|
3305 | } |
---|
3306 | |
---|
3307 | /** |
---|
3308 | * Perform a deep string replace operation to ensure the values in $search are no longer present |
---|
3309 | * |
---|
3310 | * Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values |
---|
3311 | * e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that |
---|
3312 | * str_replace would return |
---|
3313 | * |
---|
3314 | * @since 2.8.1 |
---|
3315 | * @access private |
---|
3316 | * |
---|
3317 | * @param string|array $search The value being searched for, otherwise known as the needle. |
---|
3318 | * An array may be used to designate multiple needles. |
---|
3319 | * @param string $subject The string being searched and replaced on, otherwise known as the haystack. |
---|
3320 | * @return string The string with the replaced svalues. |
---|
3321 | */ |
---|
3322 | function _deep_replace( $search, $subject ) { |
---|
3323 | $subject = (string) $subject; |
---|
3324 | |
---|
3325 | $count = 1; |
---|
3326 | while ( $count ) { |
---|
3327 | $subject = str_replace( $search, '', $subject, $count ); |
---|
3328 | } |
---|
3329 | |
---|
3330 | return $subject; |
---|
3331 | } |
---|
3332 | |
---|
3333 | /** |
---|
3334 | * Escapes data for use in a MySQL query. |
---|
3335 | * |
---|
3336 | * Usually you should prepare queries using wpdb::prepare(). |
---|
3337 | * Sometimes, spot-escaping is required or useful. One example |
---|
3338 | * is preparing an array for use in an IN clause. |
---|
3339 | * |
---|
3340 | * @since 2.8.0 |
---|
3341 | * |
---|
3342 | * @global wpdb $wpdb WordPress database abstraction object. |
---|
3343 | * |
---|
3344 | * @param string|array $data Unescaped data |
---|
3345 | * @return string|array Escaped data |
---|
3346 | */ |
---|
3347 | function esc_sql( $data ) { |
---|
3348 | global $wpdb; |
---|
3349 | return $wpdb->_escape( $data ); |
---|
3350 | } |
---|
3351 | |
---|
3352 | /** |
---|
3353 | * Checks and cleans a URL. |
---|
3354 | * |
---|
3355 | * A number of characters are removed from the URL. If the URL is for displaying |
---|
3356 | * (the default behaviour) ampersands are also replaced. The 'clean_url' filter |
---|
3357 | * is applied to the returned cleaned URL. |
---|
3358 | * |
---|
3359 | * @since 2.8.0 |
---|
3360 | * |
---|
3361 | * @param string $url The URL to be cleaned. |
---|
3362 | * @param array $protocols Optional. An array of acceptable protocols. |
---|
3363 | * Defaults to return value of wp_allowed_protocols() |
---|
3364 | * @param string $_context Private. Use esc_url_raw() for database usage. |
---|
3365 | * @return string The cleaned $url after the 'clean_url' filter is applied. |
---|
3366 | */ |
---|
3367 | function esc_url( $url, $protocols = null, $_context = 'display' ) { |
---|
3368 | $original_url = $url; |
---|
3369 | |
---|
3370 | if ( '' == $url ) |
---|
3371 | return $url; |
---|
3372 | |
---|
3373 | $url = str_replace( ' ', '%20', $url ); |
---|
3374 | $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\[\]\\x80-\\xff]|i', '', $url); |
---|
3375 | |
---|
3376 | if ( '' === $url ) { |
---|
3377 | return $url; |
---|
3378 | } |
---|
3379 | |
---|
3380 | if ( 0 !== stripos( $url, 'mailto:' ) ) { |
---|
3381 | $strip = array('%0d', '%0a', '%0D', '%0A'); |
---|
3382 | $url = _deep_replace($strip, $url); |
---|
3383 | } |
---|
3384 | |
---|
3385 | $url = str_replace(';//', '://', $url); |
---|
3386 | /* If the URL doesn't appear to contain a scheme, we |
---|
3387 | * presume it needs http:// prepended (unless a relative |
---|
3388 | * link starting with /, # or ? or a php file). |
---|
3389 | */ |
---|
3390 | if ( strpos($url, ':') === false && ! in_array( $url[0], array( '/', '#', '?' ) ) && |
---|
3391 | ! preg_match('/^[a-z0-9-]+?\.php/i', $url) ) |
---|
3392 | $url = 'http://' . $url; |
---|
3393 | |
---|
3394 | // Replace ampersands and single quotes only when displaying. |
---|
3395 | if ( 'display' == $_context ) { |
---|
3396 | $url = wp_kses_normalize_entities( $url ); |
---|
3397 | $url = str_replace( '&', '&', $url ); |
---|
3398 | $url = str_replace( "'", ''', $url ); |
---|
3399 | } |
---|
3400 | |
---|
3401 | if ( ( false !== strpos( $url, '[' ) ) || ( false !== strpos( $url, ']' ) ) ) { |
---|
3402 | |
---|
3403 | $parsed = wp_parse_url( $url ); |
---|
3404 | $front = ''; |
---|
3405 | |
---|
3406 | if ( isset( $parsed['scheme'] ) ) { |
---|
3407 | $front .= $parsed['scheme'] . '://'; |
---|
3408 | } elseif ( '/' === $url[0] ) { |
---|
3409 | $front .= '//'; |
---|
3410 | } |
---|
3411 | |
---|
3412 | if ( isset( $parsed['user'] ) ) { |
---|
3413 | $front .= $parsed['user']; |
---|
3414 | } |
---|
3415 | |
---|
3416 | if ( isset( $parsed['pass'] ) ) { |
---|
3417 | $front .= ':' . $parsed['pass']; |
---|
3418 | } |
---|
3419 | |
---|
3420 | if ( isset( $parsed['user'] ) || isset( $parsed['pass'] ) ) { |
---|
3421 | $front .= '@'; |
---|
3422 | } |
---|
3423 | |
---|
3424 | if ( isset( $parsed['host'] ) ) { |
---|
3425 | $front .= $parsed['host']; |
---|
3426 | } |
---|
3427 | |
---|
3428 | if ( isset( $parsed['port'] ) ) { |
---|
3429 | $front .= ':' . $parsed['port']; |
---|
3430 | } |
---|
3431 | |
---|
3432 | $end_dirty = str_replace( $front, '', $url ); |
---|
3433 | $end_clean = str_replace( array( '[', ']' ), array( '%5B', '%5D' ), $end_dirty ); |
---|
3434 | $url = str_replace( $end_dirty, $end_clean, $url ); |
---|
3435 | |
---|
3436 | } |
---|
3437 | |
---|
3438 | if ( '/' === $url[0] ) { |
---|
3439 | $good_protocol_url = $url; |
---|
3440 | } else { |
---|
3441 | if ( ! is_array( $protocols ) ) |
---|
3442 | $protocols = wp_allowed_protocols(); |
---|
3443 | $good_protocol_url = wp_kses_bad_protocol( $url, $protocols ); |
---|
3444 | if ( strtolower( $good_protocol_url ) != strtolower( $url ) ) |
---|
3445 | return ''; |
---|
3446 | } |
---|
3447 | |
---|
3448 | /** |
---|
3449 | * Filter a string cleaned and escaped for output as a URL. |
---|
3450 | * |
---|
3451 | * @since 2.3.0 |
---|
3452 | * |
---|
3453 | * @param string $good_protocol_url The cleaned URL to be returned. |
---|
3454 | * @param string $original_url The URL prior to cleaning. |
---|
3455 | * @param string $_context If 'display', replace ampersands and single quotes only. |
---|
3456 | */ |
---|
3457 | return apply_filters( 'clean_url', $good_protocol_url, $original_url, $_context ); |
---|
3458 | } |
---|
3459 | |
---|
3460 | /** |
---|
3461 | * Performs esc_url() for database usage. |
---|
3462 | * |
---|
3463 | * @since 2.8.0 |
---|
3464 | * |
---|
3465 | * @param string $url The URL to be cleaned. |
---|
3466 | * @param array $protocols An array of acceptable protocols. |
---|
3467 | * @return string The cleaned URL. |
---|
3468 | */ |
---|
3469 | function esc_url_raw( $url, $protocols = null ) { |
---|
3470 | return esc_url( $url, $protocols, 'db' ); |
---|
3471 | } |
---|
3472 | |
---|
3473 | /** |
---|
3474 | * Convert entities, while preserving already-encoded entities. |
---|
3475 | * |
---|
3476 | * @link http://www.php.net/htmlentities Borrowed from the PHP Manual user notes. |
---|
3477 | * |
---|
3478 | * @since 1.2.2 |
---|
3479 | * |
---|
3480 | * @param string $myHTML The text to be converted. |
---|
3481 | * @return string Converted text. |
---|
3482 | */ |
---|
3483 | function htmlentities2( $myHTML ) { |
---|
3484 | $translation_table = get_html_translation_table( HTML_ENTITIES, ENT_QUOTES ); |
---|
3485 | $translation_table[chr(38)] = '&'; |
---|
3486 | return preg_replace( "/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/", "&", strtr($myHTML, $translation_table) ); |
---|
3487 | } |
---|
3488 | |
---|
3489 | /** |
---|
3490 | * Escape single quotes, htmlspecialchar " < > &, and fix line endings. |
---|
3491 | * |
---|
3492 | * Escapes text strings for echoing in JS. It is intended to be used for inline JS |
---|
3493 | * (in a tag attribute, for example onclick="..."). Note that the strings have to |
---|
3494 | * be in single quotes. The filter 'js_escape' is also applied here. |
---|
3495 | * |
---|
3496 | * @since 2.8.0 |
---|
3497 | * |
---|
3498 | * @param string $text The text to be escaped. |
---|
3499 | * @return string Escaped text. |
---|
3500 | */ |
---|
3501 | function esc_js( $text ) { |
---|
3502 | $safe_text = wp_check_invalid_utf8( $text ); |
---|
3503 | $safe_text = _wp_specialchars( $safe_text, ENT_COMPAT ); |
---|
3504 | $safe_text = preg_replace( '/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes( $safe_text ) ); |
---|
3505 | $safe_text = str_replace( "\r", '', $safe_text ); |
---|
3506 | $safe_text = str_replace( "\n", '\\n', addslashes( $safe_text ) ); |
---|
3507 | /** |
---|
3508 | * Filter a string cleaned and escaped for output in JavaScript. |
---|
3509 | * |
---|
3510 | * Text passed to esc_js() is stripped of invalid or special characters, |
---|
3511 | * and properly slashed for output. |
---|
3512 | * |
---|
3513 | * @since 2.0.6 |
---|
3514 | * |
---|
3515 | * @param string $safe_text The text after it has been escaped. |
---|
3516 | * @param string $text The text prior to being escaped. |
---|
3517 | */ |
---|
3518 | return apply_filters( 'js_escape', $safe_text, $text ); |
---|
3519 | } |
---|
3520 | |
---|
3521 | /** |
---|
3522 | * Escaping for HTML blocks. |
---|
3523 | * |
---|
3524 | * @since 2.8.0 |
---|
3525 | * |
---|
3526 | * @param string $text |
---|
3527 | * @return string |
---|
3528 | */ |
---|
3529 | function esc_html( $text ) { |
---|
3530 | $safe_text = wp_check_invalid_utf8( $text ); |
---|
3531 | $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); |
---|
3532 | /** |
---|
3533 | * Filter a string cleaned and escaped for output in HTML. |
---|
3534 | * |
---|
3535 | * Text passed to esc_html() is stripped of invalid or special characters |
---|
3536 | * before output. |
---|
3537 | * |
---|
3538 | * @since 2.8.0 |
---|
3539 | * |
---|
3540 | * @param string $safe_text The text after it has been escaped. |
---|
3541 | * @param string $text The text prior to being escaped. |
---|
3542 | */ |
---|
3543 | return apply_filters( 'esc_html', $safe_text, $text ); |
---|
3544 | } |
---|
3545 | |
---|
3546 | /** |
---|
3547 | * Escaping for HTML attributes. |
---|
3548 | * |
---|
3549 | * @since 2.8.0 |
---|
3550 | * |
---|
3551 | * @param string $text |
---|
3552 | * @return string |
---|
3553 | */ |
---|
3554 | function esc_attr( $text ) { |
---|
3555 | $safe_text = wp_check_invalid_utf8( $text ); |
---|
3556 | $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); |
---|
3557 | /** |
---|
3558 | * Filter a string cleaned and escaped for output in an HTML attribute. |
---|
3559 | * |
---|
3560 | * Text passed to esc_attr() is stripped of invalid or special characters |
---|
3561 | * before output. |
---|
3562 | * |
---|
3563 | * @since 2.0.6 |
---|
3564 | * |
---|
3565 | * @param string $safe_text The text after it has been escaped. |
---|
3566 | * @param string $text The text prior to being escaped. |
---|
3567 | */ |
---|
3568 | return apply_filters( 'attribute_escape', $safe_text, $text ); |
---|
3569 | } |
---|
3570 | |
---|
3571 | /** |
---|
3572 | * Escaping for textarea values. |
---|
3573 | * |
---|
3574 | * @since 3.1.0 |
---|
3575 | * |
---|
3576 | * @param string $text |
---|
3577 | * @return string |
---|
3578 | */ |
---|
3579 | function esc_textarea( $text ) { |
---|
3580 | $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); |
---|
3581 | /** |
---|
3582 | * Filter a string cleaned and escaped for output in a textarea element. |
---|
3583 | * |
---|
3584 | * @since 3.1.0 |
---|
3585 | * |
---|
3586 | * @param string $safe_text The text after it has been escaped. |
---|
3587 | * @param string $text The text prior to being escaped. |
---|
3588 | */ |
---|
3589 | return apply_filters( 'esc_textarea', $safe_text, $text ); |
---|
3590 | } |
---|
3591 | |
---|
3592 | /** |
---|
3593 | * Escape an HTML tag name. |
---|
3594 | * |
---|
3595 | * @since 2.5.0 |
---|
3596 | * |
---|
3597 | * @param string $tag_name |
---|
3598 | * @return string |
---|
3599 | */ |
---|
3600 | function tag_escape( $tag_name ) { |
---|
3601 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) ); |
---|
3602 | /** |
---|
3603 | * Filter a string cleaned and escaped for output as an HTML tag. |
---|
3604 | * |
---|
3605 | * @since 2.8.0 |
---|
3606 | * |
---|
3607 | * @param string $safe_tag The tag name after it has been escaped. |
---|
3608 | * @param string $tag_name The text before it was escaped. |
---|
3609 | */ |
---|
3610 | return apply_filters( 'tag_escape', $safe_tag, $tag_name ); |
---|
3611 | } |
---|
3612 | |
---|
3613 | /** |
---|
3614 | * Convert full URL paths to absolute paths. |
---|
3615 | * |
---|
3616 | * Removes the http or https protocols and the domain. Keeps the path '/' at the |
---|
3617 | * beginning, so it isn't a true relative link, but from the web root base. |
---|
3618 | * |
---|
3619 | * @since 2.1.0 |
---|
3620 | * @since 4.1.0 Support was added for relative URLs. |
---|
3621 | * |
---|
3622 | * @param string $link Full URL path. |
---|
3623 | * @return string Absolute path. |
---|
3624 | */ |
---|
3625 | function wp_make_link_relative( $link ) { |
---|
3626 | return preg_replace( '|^(https?:)?//[^/]+(/?.*)|i', '$2', $link ); |
---|
3627 | } |
---|
3628 | |
---|
3629 | /** |
---|
3630 | * Sanitises various option values based on the nature of the option. |
---|
3631 | * |
---|
3632 | * This is basically a switch statement which will pass $value through a number |
---|
3633 | * of functions depending on the $option. |
---|
3634 | * |
---|
3635 | * @since 2.0.5 |
---|
3636 | * |
---|
3637 | * @global wpdb $wpdb WordPress database abstraction object. |
---|
3638 | * |
---|
3639 | * @param string $option The name of the option. |
---|
3640 | * @param string $value The unsanitised value. |
---|
3641 | * @return string Sanitized value. |
---|
3642 | */ |
---|
3643 | function sanitize_option( $option, $value ) { |
---|
3644 | global $wpdb; |
---|
3645 | |
---|
3646 | $original_value = $value; |
---|
3647 | $error = ''; |
---|
3648 | |
---|
3649 | switch ( $option ) { |
---|
3650 | case 'admin_email' : |
---|
3651 | case 'new_admin_email' : |
---|
3652 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3653 | if ( is_wp_error( $value ) ) { |
---|
3654 | $error = $value->get_error_message(); |
---|
3655 | } else { |
---|
3656 | $value = sanitize_email( $value ); |
---|
3657 | if ( ! is_email( $value ) ) { |
---|
3658 | $error = __( 'The email address entered did not appear to be a valid email address. Please enter a valid email address.' ); |
---|
3659 | } |
---|
3660 | } |
---|
3661 | break; |
---|
3662 | |
---|
3663 | case 'thumbnail_size_w': |
---|
3664 | case 'thumbnail_size_h': |
---|
3665 | case 'medium_size_w': |
---|
3666 | case 'medium_size_h': |
---|
3667 | case 'medium_large_size_w': |
---|
3668 | case 'medium_large_size_h': |
---|
3669 | case 'large_size_w': |
---|
3670 | case 'large_size_h': |
---|
3671 | case 'mailserver_port': |
---|
3672 | case 'comment_max_links': |
---|
3673 | case 'page_on_front': |
---|
3674 | case 'page_for_posts': |
---|
3675 | case 'rss_excerpt_length': |
---|
3676 | case 'default_category': |
---|
3677 | case 'default_email_category': |
---|
3678 | case 'default_link_category': |
---|
3679 | case 'close_comments_days_old': |
---|
3680 | case 'comments_per_page': |
---|
3681 | case 'thread_comments_depth': |
---|
3682 | case 'users_can_register': |
---|
3683 | case 'start_of_week': |
---|
3684 | case 'site_icon': |
---|
3685 | $value = absint( $value ); |
---|
3686 | break; |
---|
3687 | |
---|
3688 | case 'posts_per_page': |
---|
3689 | case 'posts_per_rss': |
---|
3690 | $value = (int) $value; |
---|
3691 | if ( empty($value) ) |
---|
3692 | $value = 1; |
---|
3693 | if ( $value < -1 ) |
---|
3694 | $value = abs($value); |
---|
3695 | break; |
---|
3696 | |
---|
3697 | case 'default_ping_status': |
---|
3698 | case 'default_comment_status': |
---|
3699 | // Options that if not there have 0 value but need to be something like "closed" |
---|
3700 | if ( $value == '0' || $value == '') |
---|
3701 | $value = 'closed'; |
---|
3702 | break; |
---|
3703 | |
---|
3704 | case 'blogdescription': |
---|
3705 | case 'blogname': |
---|
3706 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3707 | if ( is_wp_error( $value ) ) { |
---|
3708 | $error = $value->get_error_message(); |
---|
3709 | } else { |
---|
3710 | $value = wp_kses_post( $value ); |
---|
3711 | $value = esc_html( $value ); |
---|
3712 | } |
---|
3713 | break; |
---|
3714 | |
---|
3715 | case 'blog_charset': |
---|
3716 | $value = preg_replace('/[^a-zA-Z0-9_-]/', '', $value); // strips slashes |
---|
3717 | break; |
---|
3718 | |
---|
3719 | case 'blog_public': |
---|
3720 | // This is the value if the settings checkbox is not checked on POST. Don't rely on this. |
---|
3721 | if ( null === $value ) |
---|
3722 | $value = 1; |
---|
3723 | else |
---|
3724 | $value = intval( $value ); |
---|
3725 | break; |
---|
3726 | |
---|
3727 | case 'date_format': |
---|
3728 | case 'time_format': |
---|
3729 | case 'mailserver_url': |
---|
3730 | case 'mailserver_login': |
---|
3731 | case 'mailserver_pass': |
---|
3732 | case 'upload_path': |
---|
3733 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3734 | if ( is_wp_error( $value ) ) { |
---|
3735 | $error = $value->get_error_message(); |
---|
3736 | } else { |
---|
3737 | $value = strip_tags( $value ); |
---|
3738 | $value = wp_kses_data( $value ); |
---|
3739 | } |
---|
3740 | break; |
---|
3741 | |
---|
3742 | case 'ping_sites': |
---|
3743 | $value = explode( "\n", $value ); |
---|
3744 | $value = array_filter( array_map( 'trim', $value ) ); |
---|
3745 | $value = array_filter( array_map( 'esc_url_raw', $value ) ); |
---|
3746 | $value = implode( "\n", $value ); |
---|
3747 | break; |
---|
3748 | |
---|
3749 | case 'gmt_offset': |
---|
3750 | $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes |
---|
3751 | break; |
---|
3752 | |
---|
3753 | case 'siteurl': |
---|
3754 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3755 | if ( is_wp_error( $value ) ) { |
---|
3756 | $error = $value->get_error_message(); |
---|
3757 | } else { |
---|
3758 | if ( preg_match( '#http(s?)://(.+)#i', $value ) ) { |
---|
3759 | $value = esc_url_raw( $value ); |
---|
3760 | } else { |
---|
3761 | $error = __( 'The WordPress address you entered did not appear to be a valid URL. Please enter a valid URL.' ); |
---|
3762 | } |
---|
3763 | } |
---|
3764 | break; |
---|
3765 | |
---|
3766 | case 'home': |
---|
3767 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3768 | if ( is_wp_error( $value ) ) { |
---|
3769 | $error = $value->get_error_message(); |
---|
3770 | } else { |
---|
3771 | if ( preg_match( '#http(s?)://(.+)#i', $value ) ) { |
---|
3772 | $value = esc_url_raw( $value ); |
---|
3773 | } else { |
---|
3774 | $error = __( 'The Site address you entered did not appear to be a valid URL. Please enter a valid URL.' ); |
---|
3775 | } |
---|
3776 | } |
---|
3777 | break; |
---|
3778 | |
---|
3779 | case 'WPLANG': |
---|
3780 | $allowed = get_available_languages(); |
---|
3781 | if ( ! is_multisite() && defined( 'WPLANG' ) && '' !== WPLANG && 'en_US' !== WPLANG ) { |
---|
3782 | $allowed[] = WPLANG; |
---|
3783 | } |
---|
3784 | if ( ! in_array( $value, $allowed ) && ! empty( $value ) ) { |
---|
3785 | $value = get_option( $option ); |
---|
3786 | } |
---|
3787 | break; |
---|
3788 | |
---|
3789 | case 'illegal_names': |
---|
3790 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3791 | if ( is_wp_error( $value ) ) { |
---|
3792 | $error = $value->get_error_message(); |
---|
3793 | } else { |
---|
3794 | if ( ! is_array( $value ) ) |
---|
3795 | $value = explode( ' ', $value ); |
---|
3796 | |
---|
3797 | $value = array_values( array_filter( array_map( 'trim', $value ) ) ); |
---|
3798 | |
---|
3799 | if ( ! $value ) |
---|
3800 | $value = ''; |
---|
3801 | } |
---|
3802 | break; |
---|
3803 | |
---|
3804 | case 'limited_email_domains': |
---|
3805 | case 'banned_email_domains': |
---|
3806 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3807 | if ( is_wp_error( $value ) ) { |
---|
3808 | $error = $value->get_error_message(); |
---|
3809 | } else { |
---|
3810 | if ( ! is_array( $value ) ) |
---|
3811 | $value = explode( "\n", $value ); |
---|
3812 | |
---|
3813 | $domains = array_values( array_filter( array_map( 'trim', $value ) ) ); |
---|
3814 | $value = array(); |
---|
3815 | |
---|
3816 | foreach ( $domains as $domain ) { |
---|
3817 | if ( ! preg_match( '/(--|\.\.)/', $domain ) && preg_match( '|^([a-zA-Z0-9-\.])+$|', $domain ) ) { |
---|
3818 | $value[] = $domain; |
---|
3819 | } |
---|
3820 | } |
---|
3821 | if ( ! $value ) |
---|
3822 | $value = ''; |
---|
3823 | } |
---|
3824 | break; |
---|
3825 | |
---|
3826 | case 'timezone_string': |
---|
3827 | $allowed_zones = timezone_identifiers_list(); |
---|
3828 | if ( ! in_array( $value, $allowed_zones ) && ! empty( $value ) ) { |
---|
3829 | $error = __( 'The timezone you have entered is not valid. Please select a valid timezone.' ); |
---|
3830 | } |
---|
3831 | break; |
---|
3832 | |
---|
3833 | case 'permalink_structure': |
---|
3834 | case 'category_base': |
---|
3835 | case 'tag_base': |
---|
3836 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3837 | if ( is_wp_error( $value ) ) { |
---|
3838 | $error = $value->get_error_message(); |
---|
3839 | } else { |
---|
3840 | $value = esc_url_raw( $value ); |
---|
3841 | $value = str_replace( 'http://', '', $value ); |
---|
3842 | } |
---|
3843 | break; |
---|
3844 | |
---|
3845 | case 'default_role' : |
---|
3846 | if ( ! get_role( $value ) && get_role( 'subscriber' ) ) |
---|
3847 | $value = 'subscriber'; |
---|
3848 | break; |
---|
3849 | |
---|
3850 | case 'moderation_keys': |
---|
3851 | case 'blacklist_keys': |
---|
3852 | $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value ); |
---|
3853 | if ( is_wp_error( $value ) ) { |
---|
3854 | $error = $value->get_error_message(); |
---|
3855 | } else { |
---|
3856 | $value = explode( "\n", $value ); |
---|
3857 | $value = array_filter( array_map( 'trim', $value ) ); |
---|
3858 | $value = array_unique( $value ); |
---|
3859 | $value = implode( "\n", $value ); |
---|
3860 | } |
---|
3861 | break; |
---|
3862 | } |
---|
3863 | |
---|
3864 | if ( ! empty( $error ) ) { |
---|
3865 | $value = get_option( $option ); |
---|
3866 | if ( function_exists( 'add_settings_error' ) ) { |
---|
3867 | add_settings_error( $option, "invalid_{$option}", $error ); |
---|
3868 | } |
---|
3869 | } |
---|
3870 | |
---|
3871 | /** |
---|
3872 | * Filter an option value following sanitization. |
---|
3873 | * |
---|
3874 | * @since 2.3.0 |
---|
3875 | * @since 4.3.0 Added the `$original_value` parameter. |
---|
3876 | * |
---|
3877 | * @param string $value The sanitized option value. |
---|
3878 | * @param string $option The option name. |
---|
3879 | * @param string $original_value The original value passed to the function. |
---|
3880 | */ |
---|
3881 | return apply_filters( "sanitize_option_{$option}", $value, $option, $original_value ); |
---|
3882 | } |
---|
3883 | |
---|
3884 | /** |
---|
3885 | * Maps a function to all non-iterable elements of an array or an object. |
---|
3886 | * |
---|
3887 | * This is similar to `array_walk_recursive()` but acts upon objects too. |
---|
3888 | * |
---|
3889 | * @since 4.4.0 |
---|
3890 | * |
---|
3891 | * @param mixed $value The array, object, or scalar. |
---|
3892 | * @param callable $callback The function to map onto $value. |
---|
3893 | * @return The value with the callback applied to all non-arrays and non-objects inside it. |
---|
3894 | */ |
---|
3895 | function map_deep( $value, $callback ) { |
---|
3896 | if ( is_array( $value ) || is_object( $value ) ) { |
---|
3897 | foreach ( $value as &$item ) { |
---|
3898 | $item = map_deep( $item, $callback ); |
---|
3899 | } |
---|
3900 | return $value; |
---|
3901 | } else { |
---|
3902 | return call_user_func( $callback, $value ); |
---|
3903 | } |
---|
3904 | } |
---|
3905 | |
---|
3906 | /** |
---|
3907 | * Parses a string into variables to be stored in an array. |
---|
3908 | * |
---|
3909 | * Uses {@link http://www.php.net/parse_str parse_str()} and stripslashes if |
---|
3910 | * {@link http://www.php.net/magic_quotes magic_quotes_gpc} is on. |
---|
3911 | * |
---|
3912 | * @since 2.2.1 |
---|
3913 | * |
---|
3914 | * @param string $string The string to be parsed. |
---|
3915 | * @param array $array Variables will be stored in this array. |
---|
3916 | */ |
---|
3917 | function wp_parse_str( $string, &$array ) { |
---|
3918 | parse_str( $string, $array ); |
---|
3919 | if ( get_magic_quotes_gpc() ) |
---|
3920 | $array = stripslashes_deep( $array ); |
---|
3921 | /** |
---|
3922 | * Filter the array of variables derived from a parsed string. |
---|
3923 | * |
---|
3924 | * @since 2.3.0 |
---|
3925 | * |
---|
3926 | * @param array $array The array populated with variables. |
---|
3927 | */ |
---|
3928 | $array = apply_filters( 'wp_parse_str', $array ); |
---|
3929 | } |
---|
3930 | |
---|
3931 | /** |
---|
3932 | * Convert lone less than signs. |
---|
3933 | * |
---|
3934 | * KSES already converts lone greater than signs. |
---|
3935 | * |
---|
3936 | * @since 2.3.0 |
---|
3937 | * |
---|
3938 | * @param string $text Text to be converted. |
---|
3939 | * @return string Converted text. |
---|
3940 | */ |
---|
3941 | function wp_pre_kses_less_than( $text ) { |
---|
3942 | return preg_replace_callback('%<[^>]*?((?=<)|>|$)%', 'wp_pre_kses_less_than_callback', $text); |
---|
3943 | } |
---|
3944 | |
---|
3945 | /** |
---|
3946 | * Callback function used by preg_replace. |
---|
3947 | * |
---|
3948 | * @since 2.3.0 |
---|
3949 | * |
---|
3950 | * @param array $matches Populated by matches to preg_replace. |
---|
3951 | * @return string The text returned after esc_html if needed. |
---|
3952 | */ |
---|
3953 | function wp_pre_kses_less_than_callback( $matches ) { |
---|
3954 | if ( false === strpos($matches[0], '>') ) |
---|
3955 | return esc_html($matches[0]); |
---|
3956 | return $matches[0]; |
---|
3957 | } |
---|
3958 | |
---|
3959 | /** |
---|
3960 | * WordPress implementation of PHP sprintf() with filters. |
---|
3961 | * |
---|
3962 | * @since 2.5.0 |
---|
3963 | * @link http://www.php.net/sprintf |
---|
3964 | * |
---|
3965 | * @param string $pattern The string which formatted args are inserted. |
---|
3966 | * @param mixed $args ,... Arguments to be formatted into the $pattern string. |
---|
3967 | * @return string The formatted string. |
---|
3968 | */ |
---|
3969 | function wp_sprintf( $pattern ) { |
---|
3970 | $args = func_get_args(); |
---|
3971 | $len = strlen($pattern); |
---|
3972 | $start = 0; |
---|
3973 | $result = ''; |
---|
3974 | $arg_index = 0; |
---|
3975 | while ( $len > $start ) { |
---|
3976 | // Last character: append and break |
---|
3977 | if ( strlen($pattern) - 1 == $start ) { |
---|
3978 | $result .= substr($pattern, -1); |
---|
3979 | break; |
---|
3980 | } |
---|
3981 | |
---|
3982 | // Literal %: append and continue |
---|
3983 | if ( substr($pattern, $start, 2) == '%%' ) { |
---|
3984 | $start += 2; |
---|
3985 | $result .= '%'; |
---|
3986 | continue; |
---|
3987 | } |
---|
3988 | |
---|
3989 | // Get fragment before next % |
---|
3990 | $end = strpos($pattern, '%', $start + 1); |
---|
3991 | if ( false === $end ) |
---|
3992 | $end = $len; |
---|
3993 | $fragment = substr($pattern, $start, $end - $start); |
---|
3994 | |
---|
3995 | // Fragment has a specifier |
---|
3996 | if ( $pattern[$start] == '%' ) { |
---|
3997 | // Find numbered arguments or take the next one in order |
---|
3998 | if ( preg_match('/^%(\d+)\$/', $fragment, $matches) ) { |
---|
3999 | $arg = isset($args[$matches[1]]) ? $args[$matches[1]] : ''; |
---|
4000 | $fragment = str_replace("%{$matches[1]}$", '%', $fragment); |
---|
4001 | } else { |
---|
4002 | ++$arg_index; |
---|
4003 | $arg = isset($args[$arg_index]) ? $args[$arg_index] : ''; |
---|
4004 | } |
---|
4005 | |
---|
4006 | /** |
---|
4007 | * Filter a fragment from the pattern passed to wp_sprintf(). |
---|
4008 | * |
---|
4009 | * If the fragment is unchanged, then sprintf() will be run on the fragment. |
---|
4010 | * |
---|
4011 | * @since 2.5.0 |
---|
4012 | * |
---|
4013 | * @param string $fragment A fragment from the pattern. |
---|
4014 | * @param string $arg The argument. |
---|
4015 | */ |
---|
4016 | $_fragment = apply_filters( 'wp_sprintf', $fragment, $arg ); |
---|
4017 | if ( $_fragment != $fragment ) |
---|
4018 | $fragment = $_fragment; |
---|
4019 | else |
---|
4020 | $fragment = sprintf($fragment, strval($arg) ); |
---|
4021 | } |
---|
4022 | |
---|
4023 | // Append to result and move to next fragment |
---|
4024 | $result .= $fragment; |
---|
4025 | $start = $end; |
---|
4026 | } |
---|
4027 | return $result; |
---|
4028 | } |
---|
4029 | |
---|
4030 | /** |
---|
4031 | * Localize list items before the rest of the content. |
---|
4032 | * |
---|
4033 | * The '%l' must be at the first characters can then contain the rest of the |
---|
4034 | * content. The list items will have ', ', ', and', and ' and ' added depending |
---|
4035 | * on the amount of list items in the $args parameter. |
---|
4036 | * |
---|
4037 | * @since 2.5.0 |
---|
4038 | * |
---|
4039 | * @param string $pattern Content containing '%l' at the beginning. |
---|
4040 | * @param array $args List items to prepend to the content and replace '%l'. |
---|
4041 | * @return string Localized list items and rest of the content. |
---|
4042 | */ |
---|
4043 | function wp_sprintf_l( $pattern, $args ) { |
---|
4044 | // Not a match |
---|
4045 | if ( substr($pattern, 0, 2) != '%l' ) |
---|
4046 | return $pattern; |
---|
4047 | |
---|
4048 | // Nothing to work with |
---|
4049 | if ( empty($args) ) |
---|
4050 | return ''; |
---|
4051 | |
---|
4052 | /** |
---|
4053 | * Filter the translated delimiters used by wp_sprintf_l(). |
---|
4054 | * Placeholders (%s) are included to assist translators and then |
---|
4055 | * removed before the array of strings reaches the filter. |
---|
4056 | * |
---|
4057 | * Please note: Ampersands and entities should be avoided here. |
---|
4058 | * |
---|
4059 | * @since 2.5.0 |
---|
4060 | * |
---|
4061 | * @param array $delimiters An array of translated delimiters. |
---|
4062 | */ |
---|
4063 | $l = apply_filters( 'wp_sprintf_l', array( |
---|
4064 | /* translators: used to join items in a list with more than 2 items */ |
---|
4065 | 'between' => sprintf( __('%s, %s'), '', '' ), |
---|
4066 | /* translators: used to join last two items in a list with more than 2 times */ |
---|
4067 | 'between_last_two' => sprintf( __('%s, and %s'), '', '' ), |
---|
4068 | /* translators: used to join items in a list with only 2 items */ |
---|
4069 | 'between_only_two' => sprintf( __('%s and %s'), '', '' ), |
---|
4070 | ) ); |
---|
4071 | |
---|
4072 | $args = (array) $args; |
---|
4073 | $result = array_shift($args); |
---|
4074 | if ( count($args) == 1 ) |
---|
4075 | $result .= $l['between_only_two'] . array_shift($args); |
---|
4076 | // Loop when more than two args |
---|
4077 | $i = count($args); |
---|
4078 | while ( $i ) { |
---|
4079 | $arg = array_shift($args); |
---|
4080 | $i--; |
---|
4081 | if ( 0 == $i ) |
---|
4082 | $result .= $l['between_last_two'] . $arg; |
---|
4083 | else |
---|
4084 | $result .= $l['between'] . $arg; |
---|
4085 | } |
---|
4086 | return $result . substr($pattern, 2); |
---|
4087 | } |
---|
4088 | |
---|
4089 | /** |
---|
4090 | * Safely extracts not more than the first $count characters from html string. |
---|
4091 | * |
---|
4092 | * UTF-8, tags and entities safe prefix extraction. Entities inside will *NOT* |
---|
4093 | * be counted as one character. For example & will be counted as 4, < as |
---|
4094 | * 3, etc. |
---|
4095 | * |
---|
4096 | * @since 2.5.0 |
---|
4097 | * |
---|
4098 | * @param string $str String to get the excerpt from. |
---|
4099 | * @param int $count Maximum number of characters to take. |
---|
4100 | * @param string $more Optional. What to append if $str needs to be trimmed. Defaults to empty string. |
---|
4101 | * @return string The excerpt. |
---|
4102 | */ |
---|
4103 | function wp_html_excerpt( $str, $count, $more = null ) { |
---|
4104 | if ( null === $more ) |
---|
4105 | $more = ''; |
---|
4106 | $str = wp_strip_all_tags( $str, true ); |
---|
4107 | $excerpt = mb_substr( $str, 0, $count ); |
---|
4108 | // remove part of an entity at the end |
---|
4109 | $excerpt = preg_replace( '/&[^;\s]{0,6}$/', '', $excerpt ); |
---|
4110 | if ( $str != $excerpt ) |
---|
4111 | $excerpt = trim( $excerpt ) . $more; |
---|
4112 | return $excerpt; |
---|
4113 | } |
---|
4114 | |
---|
4115 | /** |
---|
4116 | * Add a Base url to relative links in passed content. |
---|
4117 | * |
---|
4118 | * By default it supports the 'src' and 'href' attributes. However this can be |
---|
4119 | * changed via the 3rd param. |
---|
4120 | * |
---|
4121 | * @since 2.7.0 |
---|
4122 | * |
---|
4123 | * @global string $_links_add_base |
---|
4124 | * |
---|
4125 | * @param string $content String to search for links in. |
---|
4126 | * @param string $base The base URL to prefix to links. |
---|
4127 | * @param array $attrs The attributes which should be processed. |
---|
4128 | * @return string The processed content. |
---|
4129 | */ |
---|
4130 | function links_add_base_url( $content, $base, $attrs = array('src', 'href') ) { |
---|
4131 | global $_links_add_base; |
---|
4132 | $_links_add_base = $base; |
---|
4133 | $attrs = implode('|', (array)$attrs); |
---|
4134 | return preg_replace_callback( "!($attrs)=(['\"])(.+?)\\2!i", '_links_add_base', $content ); |
---|
4135 | } |
---|
4136 | |
---|
4137 | /** |
---|
4138 | * Callback to add a base url to relative links in passed content. |
---|
4139 | * |
---|
4140 | * @since 2.7.0 |
---|
4141 | * @access private |
---|
4142 | * |
---|
4143 | * @global string $_links_add_base |
---|
4144 | * |
---|
4145 | * @param string $m The matched link. |
---|
4146 | * @return string The processed link. |
---|
4147 | */ |
---|
4148 | function _links_add_base( $m ) { |
---|
4149 | global $_links_add_base; |
---|
4150 | //1 = attribute name 2 = quotation mark 3 = URL |
---|
4151 | return $m[1] . '=' . $m[2] . |
---|
4152 | ( preg_match( '#^(\w{1,20}):#', $m[3], $protocol ) && in_array( $protocol[1], wp_allowed_protocols() ) ? |
---|
4153 | $m[3] : |
---|
4154 | WP_Http::make_absolute_url( $m[3], $_links_add_base ) |
---|
4155 | ) |
---|
4156 | . $m[2]; |
---|
4157 | } |
---|
4158 | |
---|
4159 | /** |
---|
4160 | * Adds a Target attribute to all links in passed content. |
---|
4161 | * |
---|
4162 | * This function by default only applies to `<a>` tags, however this can be |
---|
4163 | * modified by the 3rd param. |
---|
4164 | * |
---|
4165 | * *NOTE:* Any current target attributed will be stripped and replaced. |
---|
4166 | * |
---|
4167 | * @since 2.7.0 |
---|
4168 | * |
---|
4169 | * @global string $_links_add_target |
---|
4170 | * |
---|
4171 | * @param string $content String to search for links in. |
---|
4172 | * @param string $target The Target to add to the links. |
---|
4173 | * @param array $tags An array of tags to apply to. |
---|
4174 | * @return string The processed content. |
---|
4175 | */ |
---|
4176 | function links_add_target( $content, $target = '_blank', $tags = array('a') ) { |
---|
4177 | global $_links_add_target; |
---|
4178 | $_links_add_target = $target; |
---|
4179 | $tags = implode('|', (array)$tags); |
---|
4180 | return preg_replace_callback( "!<($tags)([^>]*)>!i", '_links_add_target', $content ); |
---|
4181 | } |
---|
4182 | |
---|
4183 | /** |
---|
4184 | * Callback to add a target attribute to all links in passed content. |
---|
4185 | * |
---|
4186 | * @since 2.7.0 |
---|
4187 | * @access private |
---|
4188 | * |
---|
4189 | * @global string $_links_add_target |
---|
4190 | * |
---|
4191 | * @param string $m The matched link. |
---|
4192 | * @return string The processed link. |
---|
4193 | */ |
---|
4194 | function _links_add_target( $m ) { |
---|
4195 | global $_links_add_target; |
---|
4196 | $tag = $m[1]; |
---|
4197 | $link = preg_replace('|( target=([\'"])(.*?)\2)|i', '', $m[2]); |
---|
4198 | return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">'; |
---|
4199 | } |
---|
4200 | |
---|
4201 | /** |
---|
4202 | * Normalize EOL characters and strip duplicate whitespace. |
---|
4203 | * |
---|
4204 | * @since 2.7.0 |
---|
4205 | * |
---|
4206 | * @param string $str The string to normalize. |
---|
4207 | * @return string The normalized string. |
---|
4208 | */ |
---|
4209 | function normalize_whitespace( $str ) { |
---|
4210 | $str = trim( $str ); |
---|
4211 | $str = str_replace( "\r", "\n", $str ); |
---|
4212 | $str = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str ); |
---|
4213 | return $str; |
---|
4214 | } |
---|
4215 | |
---|
4216 | /** |
---|
4217 | * Properly strip all HTML tags including script and style |
---|
4218 | * |
---|
4219 | * This differs from strip_tags() because it removes the contents of |
---|
4220 | * the `<script>` and `<style>` tags. E.g. `strip_tags( '<script>something</script>' )` |
---|
4221 | * will return 'something'. wp_strip_all_tags will return '' |
---|
4222 | * |
---|
4223 | * @since 2.9.0 |
---|
4224 | * |
---|
4225 | * @param string $string String containing HTML tags |
---|
4226 | * @param bool $remove_breaks Optional. Whether to remove left over line breaks and white space chars |
---|
4227 | * @return string The processed string. |
---|
4228 | */ |
---|
4229 | function wp_strip_all_tags($string, $remove_breaks = false) { |
---|
4230 | $string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string ); |
---|
4231 | $string = strip_tags($string); |
---|
4232 | |
---|
4233 | if ( $remove_breaks ) |
---|
4234 | $string = preg_replace('/[\r\n\t ]+/', ' ', $string); |
---|
4235 | |
---|
4236 | return trim( $string ); |
---|
4237 | } |
---|
4238 | |
---|
4239 | /** |
---|
4240 | * Sanitize a string from user input or from the db |
---|
4241 | * |
---|
4242 | * check for invalid UTF-8, |
---|
4243 | * Convert single < characters to entity, |
---|
4244 | * strip all tags, |
---|
4245 | * remove line breaks, tabs and extra white space, |
---|
4246 | * strip octets. |
---|
4247 | * |
---|
4248 | * @since 2.9.0 |
---|
4249 | * |
---|
4250 | * @param string $str |
---|
4251 | * @return string |
---|
4252 | */ |
---|
4253 | function sanitize_text_field( $str ) { |
---|
4254 | $filtered = wp_check_invalid_utf8( $str ); |
---|
4255 | |
---|
4256 | if ( strpos($filtered, '<') !== false ) { |
---|
4257 | $filtered = wp_pre_kses_less_than( $filtered ); |
---|
4258 | // This will strip extra whitespace for us. |
---|
4259 | $filtered = wp_strip_all_tags( $filtered, true ); |
---|
4260 | } else { |
---|
4261 | $filtered = trim( preg_replace('/[\r\n\t ]+/', ' ', $filtered) ); |
---|
4262 | } |
---|
4263 | |
---|
4264 | $found = false; |
---|
4265 | while ( preg_match('/%[a-f0-9]{2}/i', $filtered, $match) ) { |
---|
4266 | $filtered = str_replace($match[0], '', $filtered); |
---|
4267 | $found = true; |
---|
4268 | } |
---|
4269 | |
---|
4270 | if ( $found ) { |
---|
4271 | // Strip out the whitespace that may now exist after removing the octets. |
---|
4272 | $filtered = trim( preg_replace('/ +/', ' ', $filtered) ); |
---|
4273 | } |
---|
4274 | |
---|
4275 | /** |
---|
4276 | * Filter a sanitized text field string. |
---|
4277 | * |
---|
4278 | * @since 2.9.0 |
---|
4279 | * |
---|
4280 | * @param string $filtered The sanitized string. |
---|
4281 | * @param string $str The string prior to being sanitized. |
---|
4282 | */ |
---|
4283 | return apply_filters( 'sanitize_text_field', $filtered, $str ); |
---|
4284 | } |
---|
4285 | |
---|
4286 | /** |
---|
4287 | * i18n friendly version of basename() |
---|
4288 | * |
---|
4289 | * @since 3.1.0 |
---|
4290 | * |
---|
4291 | * @param string $path A path. |
---|
4292 | * @param string $suffix If the filename ends in suffix this will also be cut off. |
---|
4293 | * @return string |
---|
4294 | */ |
---|
4295 | function wp_basename( $path, $suffix = '' ) { |
---|
4296 | return urldecode( basename( str_replace( array( '%2F', '%5C' ), '/', urlencode( $path ) ), $suffix ) ); |
---|
4297 | } |
---|
4298 | |
---|
4299 | /** |
---|
4300 | * Forever eliminate "Wordpress" from the planet (or at least the little bit we can influence). |
---|
4301 | * |
---|
4302 | * Violating our coding standards for a good function name. |
---|
4303 | * |
---|
4304 | * @since 3.0.0 |
---|
4305 | * |
---|
4306 | * @staticvar string|false $dblq |
---|
4307 | */ |
---|
4308 | function capital_P_dangit( $text ) { |
---|
4309 | // Simple replacement for titles |
---|
4310 | $current_filter = current_filter(); |
---|
4311 | if ( 'the_title' === $current_filter || 'wp_title' === $current_filter ) |
---|
4312 | return str_replace( 'Wordpress', 'WordPress', $text ); |
---|
4313 | // Still here? Use the more judicious replacement |
---|
4314 | static $dblq = false; |
---|
4315 | if ( false === $dblq ) { |
---|
4316 | $dblq = _x( '“', 'opening curly double quote' ); |
---|
4317 | } |
---|
4318 | return str_replace( |
---|
4319 | array( ' Wordpress', '‘Wordpress', $dblq . 'Wordpress', '>Wordpress', '(Wordpress' ), |
---|
4320 | array( ' WordPress', '‘WordPress', $dblq . 'WordPress', '>WordPress', '(WordPress' ), |
---|
4321 | $text ); |
---|
4322 | } |
---|
4323 | |
---|
4324 | /** |
---|
4325 | * Sanitize a mime type |
---|
4326 | * |
---|
4327 | * @since 3.1.3 |
---|
4328 | * |
---|
4329 | * @param string $mime_type Mime type |
---|
4330 | * @return string Sanitized mime type |
---|
4331 | */ |
---|
4332 | function sanitize_mime_type( $mime_type ) { |
---|
4333 | $sani_mime_type = preg_replace( '/[^-+*.a-zA-Z0-9\/]/', '', $mime_type ); |
---|
4334 | /** |
---|
4335 | * Filter a mime type following sanitization. |
---|
4336 | * |
---|
4337 | * @since 3.1.3 |
---|
4338 | * |
---|
4339 | * @param string $sani_mime_type The sanitized mime type. |
---|
4340 | * @param string $mime_type The mime type prior to sanitization. |
---|
4341 | */ |
---|
4342 | return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type ); |
---|
4343 | } |
---|
4344 | |
---|
4345 | /** |
---|
4346 | * Sanitize space or carriage return separated URLs that are used to send trackbacks. |
---|
4347 | * |
---|
4348 | * @since 3.4.0 |
---|
4349 | * |
---|
4350 | * @param string $to_ping Space or carriage return separated URLs |
---|
4351 | * @return string URLs starting with the http or https protocol, separated by a carriage return. |
---|
4352 | */ |
---|
4353 | function sanitize_trackback_urls( $to_ping ) { |
---|
4354 | $urls_to_ping = preg_split( '/[\r\n\t ]/', trim( $to_ping ), -1, PREG_SPLIT_NO_EMPTY ); |
---|
4355 | foreach ( $urls_to_ping as $k => $url ) { |
---|
4356 | if ( !preg_match( '#^https?://.#i', $url ) ) |
---|
4357 | unset( $urls_to_ping[$k] ); |
---|
4358 | } |
---|
4359 | $urls_to_ping = array_map( 'esc_url_raw', $urls_to_ping ); |
---|
4360 | $urls_to_ping = implode( "\n", $urls_to_ping ); |
---|
4361 | /** |
---|
4362 | * Filter a list of trackback URLs following sanitization. |
---|
4363 | * |
---|
4364 | * The string returned here consists of a space or carriage return-delimited list |
---|
4365 | * of trackback URLs. |
---|
4366 | * |
---|
4367 | * @since 3.4.0 |
---|
4368 | * |
---|
4369 | * @param string $urls_to_ping Sanitized space or carriage return separated URLs. |
---|
4370 | * @param string $to_ping Space or carriage return separated URLs before sanitization. |
---|
4371 | */ |
---|
4372 | return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping ); |
---|
4373 | } |
---|
4374 | |
---|
4375 | /** |
---|
4376 | * Add slashes to a string or array of strings. |
---|
4377 | * |
---|
4378 | * This should be used when preparing data for core API that expects slashed data. |
---|
4379 | * This should not be used to escape data going directly into an SQL query. |
---|
4380 | * |
---|
4381 | * @since 3.6.0 |
---|
4382 | * |
---|
4383 | * @param string|array $value String or array of strings to slash. |
---|
4384 | * @return string|array Slashed $value |
---|
4385 | */ |
---|
4386 | function wp_slash( $value ) { |
---|
4387 | if ( is_array( $value ) ) { |
---|
4388 | foreach ( $value as $k => $v ) { |
---|
4389 | if ( is_array( $v ) ) { |
---|
4390 | $value[$k] = wp_slash( $v ); |
---|
4391 | } else { |
---|
4392 | $value[$k] = addslashes( $v ); |
---|
4393 | } |
---|
4394 | } |
---|
4395 | } else { |
---|
4396 | $value = addslashes( $value ); |
---|
4397 | } |
---|
4398 | |
---|
4399 | return $value; |
---|
4400 | } |
---|
4401 | |
---|
4402 | /** |
---|
4403 | * Remove slashes from a string or array of strings. |
---|
4404 | * |
---|
4405 | * This should be used to remove slashes from data passed to core API that |
---|
4406 | * expects data to be unslashed. |
---|
4407 | * |
---|
4408 | * @since 3.6.0 |
---|
4409 | * |
---|
4410 | * @param string|array $value String or array of strings to unslash. |
---|
4411 | * @return string|array Unslashed $value |
---|
4412 | */ |
---|
4413 | function wp_unslash( $value ) { |
---|
4414 | return stripslashes_deep( $value ); |
---|
4415 | } |
---|
4416 | |
---|
4417 | /** |
---|
4418 | * Extract and return the first URL from passed content. |
---|
4419 | * |
---|
4420 | * @since 3.6.0 |
---|
4421 | * |
---|
4422 | * @param string $content A string which might contain a URL. |
---|
4423 | * @return string|false The found URL. |
---|
4424 | */ |
---|
4425 | function get_url_in_content( $content ) { |
---|
4426 | if ( empty( $content ) ) { |
---|
4427 | return false; |
---|
4428 | } |
---|
4429 | |
---|
4430 | if ( preg_match( '/<a\s[^>]*?href=([\'"])(.+?)\1/is', $content, $matches ) ) { |
---|
4431 | return esc_url_raw( $matches[2] ); |
---|
4432 | } |
---|
4433 | |
---|
4434 | return false; |
---|
4435 | } |
---|
4436 | |
---|
4437 | /** |
---|
4438 | * Returns the regexp for common whitespace characters. |
---|
4439 | * |
---|
4440 | * By default, spaces include new lines, tabs, nbsp entities, and the UTF-8 nbsp. |
---|
4441 | * This is designed to replace the PCRE \s sequence. In ticket #22692, that |
---|
4442 | * sequence was found to be unreliable due to random inclusion of the A0 byte. |
---|
4443 | * |
---|
4444 | * @since 4.0.0 |
---|
4445 | * |
---|
4446 | * @staticvar string $spaces |
---|
4447 | * |
---|
4448 | * @return string The spaces regexp. |
---|
4449 | */ |
---|
4450 | function wp_spaces_regexp() { |
---|
4451 | static $spaces = ''; |
---|
4452 | |
---|
4453 | if ( empty( $spaces ) ) { |
---|
4454 | /** |
---|
4455 | * Filter the regexp for common whitespace characters. |
---|
4456 | * |
---|
4457 | * This string is substituted for the \s sequence as needed in regular |
---|
4458 | * expressions. For websites not written in English, different characters |
---|
4459 | * may represent whitespace. For websites not encoded in UTF-8, the 0xC2 0xA0 |
---|
4460 | * sequence may not be in use. |
---|
4461 | * |
---|
4462 | * @since 4.0.0 |
---|
4463 | * |
---|
4464 | * @param string $spaces Regexp pattern for matching common whitespace characters. |
---|
4465 | */ |
---|
4466 | $spaces = apply_filters( 'wp_spaces_regexp', '[\r\n\t ]|\xC2\xA0| ' ); |
---|
4467 | } |
---|
4468 | |
---|
4469 | return $spaces; |
---|
4470 | } |
---|
4471 | |
---|
4472 | /** |
---|
4473 | * Print the important emoji-related styles. |
---|
4474 | * |
---|
4475 | * @since 4.2.0 |
---|
4476 | * |
---|
4477 | * @staticvar bool $printed |
---|
4478 | */ |
---|
4479 | function print_emoji_styles() { |
---|
4480 | static $printed = false; |
---|
4481 | |
---|
4482 | if ( $printed ) { |
---|
4483 | return; |
---|
4484 | } |
---|
4485 | |
---|
4486 | $printed = true; |
---|
4487 | ?> |
---|
4488 | <style type="text/css"> |
---|
4489 | img.wp-smiley, |
---|
4490 | img.emoji { |
---|
4491 | display: inline !important; |
---|
4492 | border: none !important; |
---|
4493 | box-shadow: none !important; |
---|
4494 | height: 1em !important; |
---|
4495 | width: 1em !important; |
---|
4496 | margin: 0 .07em !important; |
---|
4497 | vertical-align: -0.1em !important; |
---|
4498 | background: none !important; |
---|
4499 | padding: 0 !important; |
---|
4500 | } |
---|
4501 | </style> |
---|
4502 | <?php |
---|
4503 | } |
---|
4504 | |
---|
4505 | /** |
---|
4506 | * |
---|
4507 | * @global string $wp_version |
---|
4508 | * @staticvar bool $printed |
---|
4509 | */ |
---|
4510 | function print_emoji_detection_script() { |
---|
4511 | global $wp_version; |
---|
4512 | static $printed = false; |
---|
4513 | |
---|
4514 | if ( $printed ) { |
---|
4515 | return; |
---|
4516 | } |
---|
4517 | |
---|
4518 | $printed = true; |
---|
4519 | |
---|
4520 | $settings = array( |
---|
4521 | /** |
---|
4522 | * Filter the URL where emoji images are hosted. |
---|
4523 | * |
---|
4524 | * @since 4.2.0 |
---|
4525 | * |
---|
4526 | * @param string The emoji base URL. |
---|
4527 | */ |
---|
4528 | 'baseUrl' => apply_filters( 'emoji_url', set_url_scheme( '//s.w.org/images/core/emoji/72x72/' ) ), |
---|
4529 | |
---|
4530 | /** |
---|
4531 | * Filter the extension of the emoji files. |
---|
4532 | * |
---|
4533 | * @since 4.2.0 |
---|
4534 | * |
---|
4535 | * @param string The emoji extension. Default .png. |
---|
4536 | */ |
---|
4537 | 'ext' => apply_filters( 'emoji_ext', '.png' ), |
---|
4538 | ); |
---|
4539 | |
---|
4540 | $version = 'ver=' . $wp_version; |
---|
4541 | |
---|
4542 | if ( SCRIPT_DEBUG ) { |
---|
4543 | $settings['source'] = array( |
---|
4544 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
---|
4545 | 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ), |
---|
4546 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
---|
4547 | 'twemoji' => apply_filters( 'script_loader_src', includes_url( "js/twemoji.js?$version" ), 'twemoji' ), |
---|
4548 | ); |
---|
4549 | |
---|
4550 | ?> |
---|
4551 | <script type="text/javascript"> |
---|
4552 | window._wpemojiSettings = <?php echo wp_json_encode( $settings ); ?>; |
---|
4553 | <?php readfile( ABSPATH . WPINC . "/js/wp-emoji-loader.js" ); ?> |
---|
4554 | </script> |
---|
4555 | <?php |
---|
4556 | } else { |
---|
4557 | $settings['source'] = array( |
---|
4558 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
---|
4559 | 'concatemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji-release.min.js?$version" ), 'concatemoji' ), |
---|
4560 | ); |
---|
4561 | |
---|
4562 | /* |
---|
4563 | * If you're looking at a src version of this file, you'll see an "include" |
---|
4564 | * statement below. This is used by the `grunt build` process to directly |
---|
4565 | * include a minified version of wp-emoji-loader.js, instead of using the |
---|
4566 | * readfile() method from above. |
---|
4567 | * |
---|
4568 | * If you're looking at a build version of this file, you'll see a string of |
---|
4569 | * minified JavaScript. If you need to debug it, please turn on SCRIPT_DEBUG |
---|
4570 | * and edit wp-emoji-loader.js directly. |
---|
4571 | */ |
---|
4572 | ?> |
---|
4573 | <script type="text/javascript"> |
---|
4574 | window._wpemojiSettings = <?php echo wp_json_encode( $settings ); ?>; |
---|
4575 | !function(a,b,c){function d(a){var c=b.createElement("canvas"),d=c.getContext&&c.getContext("2d");return d&&d.fillText?(d.textBaseline="top",d.font="600 32px Arial","flag"===a?(d.fillText(String.fromCharCode(55356,56806,55356,56826),0,0),c.toDataURL().length>3e3):("simple"===a?d.fillText(String.fromCharCode(55357,56835),0,0):d.fillText(String.fromCharCode(55356,57135),0,0),0!==d.getImageData(16,16,1,1).data[0])):!1}function e(a){var c=b.createElement("script");c.src=a,c.type="text/javascript",b.getElementsByTagName("head")[0].appendChild(c)}var f,g;c.supports={simple:d("simple"),flag:d("flag"),unicode8:d("unicode8")},c.DOMReady=!1,c.readyCallback=function(){c.DOMReady=!0},c.supports.simple&&c.supports.flag&&c.supports.unicode8||(g=function(){c.readyCallback()},b.addEventListener?(b.addEventListener("DOMContentLoaded",g,!1),a.addEventListener("load",g,!1)):(a.attachEvent("onload",g),b.attachEvent("onreadystatechange",function(){"complete"===b.readyState&&c.readyCallback()})),f=c.source||{},f.concatemoji?e(f.concatemoji):f.wpemoji&&f.twemoji&&(e(f.twemoji),e(f.wpemoji)))}(window,document,window._wpemojiSettings); |
---|
4576 | </script> |
---|
4577 | <?php |
---|
4578 | } |
---|
4579 | } |
---|
4580 | |
---|
4581 | /** |
---|
4582 | * Convert any 4 byte emoji in a string to their equivalent HTML entity. |
---|
4583 | * |
---|
4584 | * Currently, only Unicode 7 emoji are supported. Skin tone modifiers are allowed, |
---|
4585 | * all other Unicode 8 emoji will be added when the spec is finalised. |
---|
4586 | * |
---|
4587 | * This allows us to store emoji in a DB using the utf8 character set. |
---|
4588 | * |
---|
4589 | * @since 4.2.0 |
---|
4590 | * |
---|
4591 | * @param string $content The content to encode. |
---|
4592 | * @return string The encoded content. |
---|
4593 | */ |
---|
4594 | function wp_encode_emoji( $content ) { |
---|
4595 | if ( function_exists( 'mb_convert_encoding' ) ) { |
---|
4596 | $regex = '/( |
---|
4597 | \x23\xE2\x83\xA3 # Digits |
---|
4598 | [\x30-\x39]\xE2\x83\xA3 |
---|
4599 | | \xF0\x9F[\x85-\x88][\xA6-\xBF] # Enclosed characters |
---|
4600 | | \xF0\x9F[\x8C-\x97][\x80-\xBF] # Misc |
---|
4601 | | \xF0\x9F\x98[\x80-\xBF] # Smilies |
---|
4602 | | \xF0\x9F\x99[\x80-\x8F] |
---|
4603 | | \xF0\x9F\x9A[\x80-\xBF] # Transport and map symbols |
---|
4604 | )/x'; |
---|
4605 | |
---|
4606 | $matches = array(); |
---|
4607 | if ( preg_match_all( $regex, $content, $matches ) ) { |
---|
4608 | if ( ! empty( $matches[1] ) ) { |
---|
4609 | foreach ( $matches[1] as $emoji ) { |
---|
4610 | /* |
---|
4611 | * UTF-32's hex encoding is the same as HTML's hex encoding. |
---|
4612 | * So, by converting the emoji from UTF-8 to UTF-32, we magically |
---|
4613 | * get the correct hex encoding. |
---|
4614 | */ |
---|
4615 | $unpacked = unpack( 'H*', mb_convert_encoding( $emoji, 'UTF-32', 'UTF-8' ) ); |
---|
4616 | if ( isset( $unpacked[1] ) ) { |
---|
4617 | $entity = '&#x' . ltrim( $unpacked[1], '0' ) . ';'; |
---|
4618 | $content = str_replace( $emoji, $entity, $content ); |
---|
4619 | } |
---|
4620 | } |
---|
4621 | } |
---|
4622 | } |
---|
4623 | } |
---|
4624 | |
---|
4625 | return $content; |
---|
4626 | } |
---|
4627 | |
---|
4628 | /** |
---|
4629 | * Convert emoji to a static img element. |
---|
4630 | * |
---|
4631 | * @since 4.2.0 |
---|
4632 | * |
---|
4633 | * @param string $text The content to encode. |
---|
4634 | * @return string The encoded content. |
---|
4635 | */ |
---|
4636 | function wp_staticize_emoji( $text ) { |
---|
4637 | $text = wp_encode_emoji( $text ); |
---|
4638 | |
---|
4639 | /** This filter is documented in wp-includes/formatting.php */ |
---|
4640 | $cdn_url = apply_filters( 'emoji_url', set_url_scheme( '//s.w.org/images/core/emoji/72x72/' ) ); |
---|
4641 | |
---|
4642 | /** This filter is documented in wp-includes/formatting.php */ |
---|
4643 | $ext = apply_filters( 'emoji_ext', '.png' ); |
---|
4644 | |
---|
4645 | $output = ''; |
---|
4646 | /* |
---|
4647 | * HTML loop taken from smiley function, which was taken from texturize function. |
---|
4648 | * It'll never be consolidated. |
---|
4649 | * |
---|
4650 | * First, capture the tags as well as in between. |
---|
4651 | */ |
---|
4652 | $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); |
---|
4653 | $stop = count( $textarr ); |
---|
4654 | |
---|
4655 | // Ignore processing of specific tags. |
---|
4656 | $tags_to_ignore = 'code|pre|style|script|textarea'; |
---|
4657 | $ignore_block_element = ''; |
---|
4658 | |
---|
4659 | for ( $i = 0; $i < $stop; $i++ ) { |
---|
4660 | $content = $textarr[$i]; |
---|
4661 | |
---|
4662 | // If we're in an ignore block, wait until we find its closing tag. |
---|
4663 | if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) { |
---|
4664 | $ignore_block_element = $matches[1]; |
---|
4665 | } |
---|
4666 | |
---|
4667 | // If it's not a tag and not in ignore block. |
---|
4668 | if ( '' == $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) { |
---|
4669 | $matches = array(); |
---|
4670 | if ( preg_match_all( '/(DZ(e[6-9a-f]|f[0-9a-f]);){2}/', $content, $matches ) ) { |
---|
4671 | if ( ! empty( $matches[0] ) ) { |
---|
4672 | foreach ( $matches[0] as $flag ) { |
---|
4673 | $chars = str_replace( array( '&#x', ';'), '', $flag ); |
---|
4674 | |
---|
4675 | list( $char1, $char2 ) = str_split( $chars, 5 ); |
---|
4676 | $entity = sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', $cdn_url . $char1 . '-' . $char2 . $ext, html_entity_decode( $flag ) ); |
---|
4677 | |
---|
4678 | $content = str_replace( $flag, $entity, $content ); |
---|
4679 | } |
---|
4680 | } |
---|
4681 | } |
---|
4682 | |
---|
4683 | // Loosely match the Emoji Unicode range. |
---|
4684 | $regex = '/(&#x[2-3][0-9a-f]{3};|[1-6][0-9a-f]{2};)/'; |
---|
4685 | |
---|
4686 | $matches = array(); |
---|
4687 | if ( preg_match_all( $regex, $content, $matches ) ) { |
---|
4688 | if ( ! empty( $matches[1] ) ) { |
---|
4689 | foreach ( $matches[1] as $emoji ) { |
---|
4690 | $char = str_replace( array( '&#x', ';'), '', $emoji ); |
---|
4691 | $entity = sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', $cdn_url . $char . $ext, html_entity_decode( $emoji ) ); |
---|
4692 | |
---|
4693 | $content = str_replace( $emoji, $entity, $content ); |
---|
4694 | } |
---|
4695 | } |
---|
4696 | } |
---|
4697 | } |
---|
4698 | |
---|
4699 | // Did we exit ignore block. |
---|
4700 | if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) { |
---|
4701 | $ignore_block_element = ''; |
---|
4702 | } |
---|
4703 | |
---|
4704 | $output .= $content; |
---|
4705 | } |
---|
4706 | |
---|
4707 | return $output; |
---|
4708 | } |
---|
4709 | |
---|
4710 | /** |
---|
4711 | * Convert emoji in emails into static images. |
---|
4712 | * |
---|
4713 | * @since 4.2.0 |
---|
4714 | * |
---|
4715 | * @param array $mail The email data array. |
---|
4716 | * @return array The email data array, with emoji in the message staticized. |
---|
4717 | */ |
---|
4718 | function wp_staticize_emoji_for_email( $mail ) { |
---|
4719 | if ( ! isset( $mail['message'] ) ) { |
---|
4720 | return $mail; |
---|
4721 | } |
---|
4722 | |
---|
4723 | /* |
---|
4724 | * We can only transform the emoji into images if it's a text/html email. |
---|
4725 | * To do that, here's a cut down version of the same process that happens |
---|
4726 | * in wp_mail() - get the Content-Type from the headers, if there is one, |
---|
4727 | * then pass it through the wp_mail_content_type filter, in case a plugin |
---|
4728 | * is handling changing the Content-Type. |
---|
4729 | */ |
---|
4730 | $headers = array(); |
---|
4731 | if ( isset( $mail['headers'] ) ) { |
---|
4732 | if ( is_array( $mail['headers'] ) ) { |
---|
4733 | $headers = $mail['headers']; |
---|
4734 | } else { |
---|
4735 | $headers = explode( "\n", str_replace( "\r\n", "\n", $mail['headers'] ) ); |
---|
4736 | } |
---|
4737 | } |
---|
4738 | |
---|
4739 | foreach ( $headers as $header ) { |
---|
4740 | if ( strpos($header, ':') === false ) { |
---|
4741 | continue; |
---|
4742 | } |
---|
4743 | |
---|
4744 | // Explode them out. |
---|
4745 | list( $name, $content ) = explode( ':', trim( $header ), 2 ); |
---|
4746 | |
---|
4747 | // Cleanup crew. |
---|
4748 | $name = trim( $name ); |
---|
4749 | $content = trim( $content ); |
---|
4750 | |
---|
4751 | if ( 'content-type' === strtolower( $name ) ) { |
---|
4752 | if ( strpos( $content, ';' ) !== false ) { |
---|
4753 | list( $type, $charset ) = explode( ';', $content ); |
---|
4754 | $content_type = trim( $type ); |
---|
4755 | } else { |
---|
4756 | $content_type = trim( $content ); |
---|
4757 | } |
---|
4758 | break; |
---|
4759 | } |
---|
4760 | } |
---|
4761 | |
---|
4762 | // Set Content-Type if we don't have a content-type from the input headers. |
---|
4763 | if ( ! isset( $content_type ) ) { |
---|
4764 | $content_type = 'text/plain'; |
---|
4765 | } |
---|
4766 | |
---|
4767 | /** This filter is documented in wp-includes/pluggable.php */ |
---|
4768 | $content_type = apply_filters( 'wp_mail_content_type', $content_type ); |
---|
4769 | |
---|
4770 | if ( 'text/html' === $content_type ) { |
---|
4771 | $mail['message'] = wp_staticize_emoji( $mail['message'] ); |
---|
4772 | } |
---|
4773 | |
---|
4774 | return $mail; |
---|
4775 | } |
---|
4776 | |
---|
4777 | /** |
---|
4778 | * Shorten an URL, to be used as link text. |
---|
4779 | * |
---|
4780 | * @since 1.2.0 |
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4781 | * @since 4.4.0 Moved to wp-includes/formatting.php from wp-admin/includes/misc.php and added $length param. |
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4782 | * |
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4783 | * @param string $url URL to shorten. |
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4784 | * @param int $length Optional. Maximum length of the shortened URL. Default 35 characters. |
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4785 | * @return string Shortened URL. |
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4786 | */ |
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4787 | function url_shorten( $url, $length = 35 ) { |
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4788 | $stripped = str_replace( array( 'https://', 'http://', 'www.' ), '', $url ); |
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4789 | $short_url = untrailingslashit( $stripped ); |
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4790 | |
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4791 | if ( strlen( $short_url ) > $length ) { |
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4792 | $short_url = substr( $short_url, 0, $length - 3 ) . '…'; |
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4793 | } |
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4794 | return $short_url; |
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4795 | } |
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