1 | 'use strict';
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2 |
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3 | const path = require('path');
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4 | const WIN_SLASH = '\\\\/';
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5 | const WIN_NO_SLASH = `[^${WIN_SLASH}]`;
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6 |
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7 | /**
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8 | * Posix glob regex
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9 | */
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10 |
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11 | const DOT_LITERAL = '\\.';
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12 | const PLUS_LITERAL = '\\+';
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13 | const QMARK_LITERAL = '\\?';
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14 | const SLASH_LITERAL = '\\/';
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15 | const ONE_CHAR = '(?=.)';
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16 | const QMARK = '[^/]';
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17 | const END_ANCHOR = `(?:${SLASH_LITERAL}|$)`;
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18 | const START_ANCHOR = `(?:^|${SLASH_LITERAL})`;
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19 | const DOTS_SLASH = `${DOT_LITERAL}{1,2}${END_ANCHOR}`;
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20 | const NO_DOT = `(?!${DOT_LITERAL})`;
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21 | const NO_DOTS = `(?!${START_ANCHOR}${DOTS_SLASH})`;
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22 | const NO_DOT_SLASH = `(?!${DOT_LITERAL}{0,1}${END_ANCHOR})`;
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23 | const NO_DOTS_SLASH = `(?!${DOTS_SLASH})`;
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24 | const QMARK_NO_DOT = `[^.${SLASH_LITERAL}]`;
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25 | const STAR = `${QMARK}*?`;
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26 |
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27 | const POSIX_CHARS = {
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28 | DOT_LITERAL,
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29 | PLUS_LITERAL,
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30 | QMARK_LITERAL,
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31 | SLASH_LITERAL,
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32 | ONE_CHAR,
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33 | QMARK,
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34 | END_ANCHOR,
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35 | DOTS_SLASH,
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36 | NO_DOT,
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37 | NO_DOTS,
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38 | NO_DOT_SLASH,
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39 | NO_DOTS_SLASH,
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40 | QMARK_NO_DOT,
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41 | STAR,
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42 | START_ANCHOR
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43 | };
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44 |
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45 | /**
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46 | * Windows glob regex
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47 | */
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48 |
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49 | const WINDOWS_CHARS = {
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50 | ...POSIX_CHARS,
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51 |
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52 | SLASH_LITERAL: `[${WIN_SLASH}]`,
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53 | QMARK: WIN_NO_SLASH,
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54 | STAR: `${WIN_NO_SLASH}*?`,
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55 | DOTS_SLASH: `${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$)`,
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56 | NO_DOT: `(?!${DOT_LITERAL})`,
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57 | NO_DOTS: `(?!(?:^|[${WIN_SLASH}])${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$))`,
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58 | NO_DOT_SLASH: `(?!${DOT_LITERAL}{0,1}(?:[${WIN_SLASH}]|$))`,
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59 | NO_DOTS_SLASH: `(?!${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$))`,
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60 | QMARK_NO_DOT: `[^.${WIN_SLASH}]`,
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61 | START_ANCHOR: `(?:^|[${WIN_SLASH}])`,
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62 | END_ANCHOR: `(?:[${WIN_SLASH}]|$)`
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63 | };
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64 |
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65 | /**
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66 | * POSIX Bracket Regex
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67 | */
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68 |
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69 | const POSIX_REGEX_SOURCE = {
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70 | alnum: 'a-zA-Z0-9',
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71 | alpha: 'a-zA-Z',
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72 | ascii: '\\x00-\\x7F',
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73 | blank: ' \\t',
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74 | cntrl: '\\x00-\\x1F\\x7F',
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75 | digit: '0-9',
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76 | graph: '\\x21-\\x7E',
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77 | lower: 'a-z',
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78 | print: '\\x20-\\x7E ',
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79 | punct: '\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
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80 | space: ' \\t\\r\\n\\v\\f',
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81 | upper: 'A-Z',
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82 | word: 'A-Za-z0-9_',
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83 | xdigit: 'A-Fa-f0-9'
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84 | };
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85 |
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86 | module.exports = {
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87 | MAX_LENGTH: 1024 * 64,
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88 | POSIX_REGEX_SOURCE,
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89 |
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90 | // regular expressions
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91 | REGEX_BACKSLASH: /\\(?![*+?^${}(|)[\]])/g,
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92 | REGEX_NON_SPECIAL_CHARS: /^[^@![\].,$*+?^{}()|\\/]+/,
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93 | REGEX_SPECIAL_CHARS: /[-*+?.^${}(|)[\]]/,
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94 | REGEX_SPECIAL_CHARS_BACKREF: /(\\?)((\W)(\3*))/g,
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95 | REGEX_SPECIAL_CHARS_GLOBAL: /([-*+?.^${}(|)[\]])/g,
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96 | REGEX_REMOVE_BACKSLASH: /(?:\[.*?[^\\]\]|\\(?=.))/g,
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97 |
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98 | // Replace globs with equivalent patterns to reduce parsing time.
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99 | REPLACEMENTS: {
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100 | '***': '*',
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101 | '**/**': '**',
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102 | '**/**/**': '**'
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103 | },
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104 |
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105 | // Digits
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106 | CHAR_0: 48, /* 0 */
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107 | CHAR_9: 57, /* 9 */
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108 |
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109 | // Alphabet chars.
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110 | CHAR_UPPERCASE_A: 65, /* A */
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111 | CHAR_LOWERCASE_A: 97, /* a */
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112 | CHAR_UPPERCASE_Z: 90, /* Z */
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113 | CHAR_LOWERCASE_Z: 122, /* z */
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114 |
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115 | CHAR_LEFT_PARENTHESES: 40, /* ( */
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116 | CHAR_RIGHT_PARENTHESES: 41, /* ) */
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117 |
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118 | CHAR_ASTERISK: 42, /* * */
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119 |
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120 | // Non-alphabetic chars.
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121 | CHAR_AMPERSAND: 38, /* & */
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122 | CHAR_AT: 64, /* @ */
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123 | CHAR_BACKWARD_SLASH: 92, /* \ */
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124 | CHAR_CARRIAGE_RETURN: 13, /* \r */
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125 | CHAR_CIRCUMFLEX_ACCENT: 94, /* ^ */
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126 | CHAR_COLON: 58, /* : */
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127 | CHAR_COMMA: 44, /* , */
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128 | CHAR_DOT: 46, /* . */
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129 | CHAR_DOUBLE_QUOTE: 34, /* " */
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130 | CHAR_EQUAL: 61, /* = */
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131 | CHAR_EXCLAMATION_MARK: 33, /* ! */
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132 | CHAR_FORM_FEED: 12, /* \f */
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133 | CHAR_FORWARD_SLASH: 47, /* / */
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134 | CHAR_GRAVE_ACCENT: 96, /* ` */
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135 | CHAR_HASH: 35, /* # */
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136 | CHAR_HYPHEN_MINUS: 45, /* - */
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137 | CHAR_LEFT_ANGLE_BRACKET: 60, /* < */
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138 | CHAR_LEFT_CURLY_BRACE: 123, /* { */
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139 | CHAR_LEFT_SQUARE_BRACKET: 91, /* [ */
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140 | CHAR_LINE_FEED: 10, /* \n */
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141 | CHAR_NO_BREAK_SPACE: 160, /* \u00A0 */
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142 | CHAR_PERCENT: 37, /* % */
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143 | CHAR_PLUS: 43, /* + */
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144 | CHAR_QUESTION_MARK: 63, /* ? */
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145 | CHAR_RIGHT_ANGLE_BRACKET: 62, /* > */
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146 | CHAR_RIGHT_CURLY_BRACE: 125, /* } */
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147 | CHAR_RIGHT_SQUARE_BRACKET: 93, /* ] */
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148 | CHAR_SEMICOLON: 59, /* ; */
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149 | CHAR_SINGLE_QUOTE: 39, /* ' */
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150 | CHAR_SPACE: 32, /* */
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151 | CHAR_TAB: 9, /* \t */
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152 | CHAR_UNDERSCORE: 95, /* _ */
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153 | CHAR_VERTICAL_LINE: 124, /* | */
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154 | CHAR_ZERO_WIDTH_NOBREAK_SPACE: 65279, /* \uFEFF */
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155 |
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156 | SEP: path.sep,
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157 |
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158 | /**
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159 | * Create EXTGLOB_CHARS
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160 | */
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161 |
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162 | extglobChars(chars) {
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163 | return {
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164 | '!': { type: 'negate', open: '(?:(?!(?:', close: `))${chars.STAR})` },
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165 | '?': { type: 'qmark', open: '(?:', close: ')?' },
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166 | '+': { type: 'plus', open: '(?:', close: ')+' },
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167 | '*': { type: 'star', open: '(?:', close: ')*' },
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168 | '@': { type: 'at', open: '(?:', close: ')' }
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169 | };
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170 | },
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171 |
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172 | /**
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173 | * Create GLOB_CHARS
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174 | */
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175 |
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176 | globChars(win32) {
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177 | return win32 === true ? WINDOWS_CHARS : POSIX_CHARS;
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178 | }
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179 | };
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