1 | ;
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2 |
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3 | exports.__esModule = true;
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4 | exports.default = tokenizer;
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5 | var SINGLE_QUOTE = '\''.charCodeAt(0);
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6 | var DOUBLE_QUOTE = '"'.charCodeAt(0);
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7 | var BACKSLASH = '\\'.charCodeAt(0);
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8 | var SLASH = '/'.charCodeAt(0);
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9 | var NEWLINE = '\n'.charCodeAt(0);
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10 | var SPACE = ' '.charCodeAt(0);
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11 | var FEED = '\f'.charCodeAt(0);
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12 | var TAB = '\t'.charCodeAt(0);
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13 | var CR = '\r'.charCodeAt(0);
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14 | var OPEN_SQUARE = '['.charCodeAt(0);
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15 | var CLOSE_SQUARE = ']'.charCodeAt(0);
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16 | var OPEN_PARENTHESES = '('.charCodeAt(0);
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17 | var CLOSE_PARENTHESES = ')'.charCodeAt(0);
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18 | var OPEN_CURLY = '{'.charCodeAt(0);
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19 | var CLOSE_CURLY = '}'.charCodeAt(0);
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20 | var SEMICOLON = ';'.charCodeAt(0);
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21 | var ASTERISK = '*'.charCodeAt(0);
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22 | var COLON = ':'.charCodeAt(0);
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23 | var AT = '@'.charCodeAt(0);
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24 | var RE_AT_END = /[ \n\t\r\f{}()'"\\;/[\]#]/g;
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25 | var RE_WORD_END = /[ \n\t\r\f(){}:;@!'"\\\][#]|\/(?=\*)/g;
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26 | var RE_BAD_BRACKET = /.[\\/("'\n]/;
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27 | var RE_HEX_ESCAPE = /[a-f0-9]/i;
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28 |
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29 | function tokenizer(input, options) {
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30 | if (options === void 0) {
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31 | options = {};
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32 | }
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33 |
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34 | var css = input.css.valueOf();
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35 | var ignore = options.ignoreErrors;
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36 | var code, next, quote, lines, last, content, escape;
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37 | var nextLine, nextOffset, escaped, escapePos, prev, n, currentToken;
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38 | var length = css.length;
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39 | var offset = -1;
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40 | var line = 1;
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41 | var pos = 0;
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42 | var buffer = [];
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43 | var returned = [];
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44 |
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45 | function position() {
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46 | return pos;
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47 | }
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48 |
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49 | function unclosed(what) {
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50 | throw input.error('Unclosed ' + what, line, pos - offset);
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51 | }
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52 |
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53 | function endOfFile() {
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54 | return returned.length === 0 && pos >= length;
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55 | }
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56 |
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57 | function nextToken(opts) {
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58 | if (returned.length) return returned.pop();
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59 | if (pos >= length) return;
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60 | var ignoreUnclosed = opts ? opts.ignoreUnclosed : false;
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61 | code = css.charCodeAt(pos);
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62 |
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63 | if (code === NEWLINE || code === FEED || code === CR && css.charCodeAt(pos + 1) !== NEWLINE) {
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64 | offset = pos;
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65 | line += 1;
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66 | }
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67 |
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68 | switch (code) {
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69 | case NEWLINE:
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70 | case SPACE:
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71 | case TAB:
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72 | case CR:
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73 | case FEED:
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74 | next = pos;
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75 |
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76 | do {
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77 | next += 1;
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78 | code = css.charCodeAt(next);
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79 |
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80 | if (code === NEWLINE) {
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81 | offset = next;
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82 | line += 1;
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83 | }
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84 | } while (code === SPACE || code === NEWLINE || code === TAB || code === CR || code === FEED);
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85 |
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86 | currentToken = ['space', css.slice(pos, next)];
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87 | pos = next - 1;
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88 | break;
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89 |
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90 | case OPEN_SQUARE:
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91 | case CLOSE_SQUARE:
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92 | case OPEN_CURLY:
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93 | case CLOSE_CURLY:
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94 | case COLON:
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95 | case SEMICOLON:
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96 | case CLOSE_PARENTHESES:
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97 | var controlChar = String.fromCharCode(code);
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98 | currentToken = [controlChar, controlChar, line, pos - offset];
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99 | break;
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100 |
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101 | case OPEN_PARENTHESES:
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102 | prev = buffer.length ? buffer.pop()[1] : '';
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103 | n = css.charCodeAt(pos + 1);
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104 |
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105 | if (prev === 'url' && n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE && n !== SPACE && n !== NEWLINE && n !== TAB && n !== FEED && n !== CR) {
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106 | next = pos;
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107 |
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108 | do {
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109 | escaped = false;
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110 | next = css.indexOf(')', next + 1);
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111 |
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112 | if (next === -1) {
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113 | if (ignore || ignoreUnclosed) {
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114 | next = pos;
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115 | break;
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116 | } else {
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117 | unclosed('bracket');
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118 | }
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119 | }
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120 |
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121 | escapePos = next;
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122 |
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123 | while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
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124 | escapePos -= 1;
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125 | escaped = !escaped;
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126 | }
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127 | } while (escaped);
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128 |
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129 | currentToken = ['brackets', css.slice(pos, next + 1), line, pos - offset, line, next - offset];
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130 | pos = next;
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131 | } else {
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132 | next = css.indexOf(')', pos + 1);
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133 | content = css.slice(pos, next + 1);
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134 |
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135 | if (next === -1 || RE_BAD_BRACKET.test(content)) {
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136 | currentToken = ['(', '(', line, pos - offset];
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137 | } else {
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138 | currentToken = ['brackets', content, line, pos - offset, line, next - offset];
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139 | pos = next;
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140 | }
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141 | }
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142 |
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143 | break;
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144 |
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145 | case SINGLE_QUOTE:
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146 | case DOUBLE_QUOTE:
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147 | quote = code === SINGLE_QUOTE ? '\'' : '"';
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148 | next = pos;
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149 |
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150 | do {
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151 | escaped = false;
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152 | next = css.indexOf(quote, next + 1);
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153 |
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154 | if (next === -1) {
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155 | if (ignore || ignoreUnclosed) {
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156 | next = pos + 1;
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157 | break;
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158 | } else {
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159 | unclosed('string');
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160 | }
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161 | }
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162 |
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163 | escapePos = next;
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164 |
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165 | while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
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166 | escapePos -= 1;
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167 | escaped = !escaped;
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168 | }
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169 | } while (escaped);
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170 |
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171 | content = css.slice(pos, next + 1);
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172 | lines = content.split('\n');
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173 | last = lines.length - 1;
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174 |
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175 | if (last > 0) {
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176 | nextLine = line + last;
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177 | nextOffset = next - lines[last].length;
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178 | } else {
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179 | nextLine = line;
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180 | nextOffset = offset;
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181 | }
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182 |
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183 | currentToken = ['string', css.slice(pos, next + 1), line, pos - offset, nextLine, next - nextOffset];
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184 | offset = nextOffset;
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185 | line = nextLine;
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186 | pos = next;
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187 | break;
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188 |
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189 | case AT:
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190 | RE_AT_END.lastIndex = pos + 1;
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191 | RE_AT_END.test(css);
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192 |
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193 | if (RE_AT_END.lastIndex === 0) {
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194 | next = css.length - 1;
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195 | } else {
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196 | next = RE_AT_END.lastIndex - 2;
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197 | }
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198 |
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199 | currentToken = ['at-word', css.slice(pos, next + 1), line, pos - offset, line, next - offset];
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200 | pos = next;
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201 | break;
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202 |
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203 | case BACKSLASH:
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204 | next = pos;
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205 | escape = true;
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206 |
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207 | while (css.charCodeAt(next + 1) === BACKSLASH) {
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208 | next += 1;
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209 | escape = !escape;
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210 | }
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211 |
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212 | code = css.charCodeAt(next + 1);
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213 |
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214 | if (escape && code !== SLASH && code !== SPACE && code !== NEWLINE && code !== TAB && code !== CR && code !== FEED) {
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215 | next += 1;
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216 |
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217 | if (RE_HEX_ESCAPE.test(css.charAt(next))) {
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218 | while (RE_HEX_ESCAPE.test(css.charAt(next + 1))) {
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219 | next += 1;
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220 | }
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221 |
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222 | if (css.charCodeAt(next + 1) === SPACE) {
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223 | next += 1;
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224 | }
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225 | }
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226 | }
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227 |
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228 | currentToken = ['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset];
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229 | pos = next;
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230 | break;
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231 |
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232 | default:
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233 | if (code === SLASH && css.charCodeAt(pos + 1) === ASTERISK) {
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234 | next = css.indexOf('*/', pos + 2) + 1;
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235 |
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236 | if (next === 0) {
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237 | if (ignore || ignoreUnclosed) {
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238 | next = css.length;
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239 | } else {
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240 | unclosed('comment');
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241 | }
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242 | }
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243 |
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244 | content = css.slice(pos, next + 1);
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245 | lines = content.split('\n');
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246 | last = lines.length - 1;
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247 |
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248 | if (last > 0) {
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249 | nextLine = line + last;
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250 | nextOffset = next - lines[last].length;
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251 | } else {
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252 | nextLine = line;
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253 | nextOffset = offset;
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254 | }
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255 |
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256 | currentToken = ['comment', content, line, pos - offset, nextLine, next - nextOffset];
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257 | offset = nextOffset;
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258 | line = nextLine;
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259 | pos = next;
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260 | } else {
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261 | RE_WORD_END.lastIndex = pos + 1;
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262 | RE_WORD_END.test(css);
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263 |
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264 | if (RE_WORD_END.lastIndex === 0) {
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265 | next = css.length - 1;
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266 | } else {
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267 | next = RE_WORD_END.lastIndex - 2;
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268 | }
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269 |
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270 | currentToken = ['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset];
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271 | buffer.push(currentToken);
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272 | pos = next;
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273 | }
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274 |
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275 | break;
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276 | }
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277 |
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278 | pos++;
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279 | return currentToken;
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280 | }
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281 |
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282 | function back(token) {
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283 | returned.push(token);
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284 | }
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285 |
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286 | return {
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287 | back: back,
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288 | nextToken: nextToken,
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289 | endOfFile: endOfFile,
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290 | position: position
|
291 | };
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292 | }
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293 |
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294 | module.exports = exports.default;
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FEED:\n        next = pos\n        do {\n          next += 1\n          code = css.charCodeAt(next)\n          if (code === NEWLINE) {\n            offset = next\n            line += 1\n          }\n        } while (\n          code === SPACE ||\n          code === NEWLINE ||\n          code === TAB ||\n          code === CR ||\n          code === FEED\n        )\n\n        currentToken = ['space', css.slice(pos, next)]\n        pos = next - 1\n        break\n\n      case OPEN_SQUARE:\n      case CLOSE_SQUARE:\n      case OPEN_CURLY:\n      case CLOSE_CURLY:\n      case COLON:\n      case SEMICOLON:\n      case CLOSE_PARENTHESES:\n        let controlChar = String.fromCharCode(code)\n        currentToken = [controlChar, controlChar, line, pos - offset]\n        break\n\n      case OPEN_PARENTHESES:\n        prev = buffer.length ? buffer.pop()[1] : ''\n        n = css.charCodeAt(pos + 1)\n        if (\n          prev === 'url' &&\n          n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE &&\n          n !== SPACE && n !== NEWLINE && n !== TAB &&\n          n !== FEED && n !== CR\n        ) {\n          next = pos\n          do {\n            escaped = false\n            next = css.indexOf(')', next + 1)\n            if (next === -1) {\n              if (ignore || ignoreUnclosed) {\n                next = pos\n                break\n              } else {\n                unclosed('bracket')\n              }\n            }\n            escapePos = next\n            while (css.charCodeAt(escapePos - 1) === BACKSLASH) {\n              escapePos -= 1\n              escaped = !escaped\n            }\n          } while (escaped)\n\n          currentToken = ['brackets', css.slice(pos, next + 1),\n            line, pos - offset,\n            line, next - offset\n          ]\n\n          pos = next\n        } else {\n          next = css.indexOf(')', pos + 1)\n          content = css.slice(pos, next + 1)\n\n          if (next === -1 || RE_BAD_BRACKET.test(content)) {\n            currentToken = ['(', '(', line, pos - offset]\n          } else {\n            currentToken = ['brackets', content,\n              line, pos - offset,\n              line, next - offset\n            ]\n            pos = next\n          }\n        }\n\n        break\n\n      case SINGLE_QUOTE:\n      case DOUBLE_QUOTE:\n        quote = code === SINGLE_QUOTE ? '\\'' : '\"'\n        next = pos\n        do {\n          escaped = false\n          next = css.indexOf(quote, next + 1)\n          if (next === -1) {\n            if (ignore || ignoreUnclosed) {\n              next = pos + 1\n              break\n            } else {\n              unclosed('string')\n            }\n          }\n          escapePos = next\n          while (css.charCodeAt(escapePos - 1) === BACKSLASH) {\n            escapePos -= 1\n            escaped = !escaped\n          }\n        } while (escaped)\n\n        content = css.slice(pos, next + 1)\n        lines = content.split('\\n')\n        last = lines.length - 1\n\n        if (last > 0) {\n          nextLine = line + last\n          nextOffset = next - lines[last].length\n        } else {\n          nextLine = line\n          nextOffset = offset\n        }\n\n        currentToken = ['string', css.slice(pos, next + 1),\n          line, pos - offset,\n          nextLine, next - nextOffset\n        ]\n\n        offset = nextOffset\n        line = nextLine\n        pos = next\n        break\n\n      case AT:\n        RE_AT_END.lastIndex = pos + 1\n        RE_AT_END.test(css)\n        if (RE_AT_END.lastIndex === 0) {\n          next = css.length - 1\n        } else {\n          next = RE_AT_END.lastIndex - 2\n        }\n\n        currentToken = ['at-word', css.slice(pos, next + 1),\n          line, pos - offset,\n          line, next - offset\n        ]\n\n        pos = next\n        break\n\n      case BACKSLASH:\n        next = pos\n        escape = true\n        while (css.charCodeAt(next + 1) === BACKSLASH) {\n          next += 1\n          escape = !escape\n        }\n        code = css.charCodeAt(next + 1)\n        if (\n          escape &&\n          code !== SLASH &&\n          code !== SPACE &&\n          code !== NEWLINE &&\n          code !== TAB &&\n          code !== CR &&\n          code !== FEED\n        ) {\n          next += 1\n          if (RE_HEX_ESCAPE.test(css.charAt(next))) {\n            while (RE_HEX_ESCAPE.test(css.charAt(next + 1))) {\n              next += 1\n            }\n            if (css.charCodeAt(next + 1) === SPACE) {\n              next += 1\n            }\n          }\n        }\n\n        currentToken = ['word', css.slice(pos, next + 1),\n          line, pos - offset,\n          line, next - offset\n        ]\n\n        pos = next\n        break\n\n      default:\n        if (code === SLASH && css.charCodeAt(pos + 1) === ASTERISK) {\n          next = css.indexOf('*/', pos + 2) + 1\n          if (next === 0) {\n            if (ignore || ignoreUnclosed) {\n              next = css.length\n            } else {\n              unclosed('comment')\n            }\n          }\n\n          content = css.slice(pos, next + 1)\n          lines = content.split('\\n')\n          last = lines.length - 1\n\n          if (last > 0) {\n            nextLine = line + last\n            nextOffset = next - lines[last].length\n          } else {\n            nextLine = line\n            nextOffset = offset\n          }\n\n          currentToken = ['comment', content,\n            line, pos - offset,\n            nextLine, next - nextOffset\n          ]\n\n          offset = nextOffset\n          line = nextLine\n          pos = next\n        } else {\n          RE_WORD_END.lastIndex = pos + 1\n          RE_WORD_END.test(css)\n          if (RE_WORD_END.lastIndex === 0) {\n            next = css.length - 1\n          } else {\n            next = RE_WORD_END.lastIndex - 2\n          }\n\n          currentToken = ['word', css.slice(pos, next + 1),\n            line, pos - offset,\n            line, next - offset\n          ]\n\n          buffer.push(currentToken)\n\n          pos = next\n        }\n\n        break\n    }\n\n    pos++\n    return currentToken\n  }\n\n  function back (token) {\n    returned.push(token)\n  }\n\n  return {\n    back,\n    nextToken,\n    endOfFile,\n    position\n  }\n}\n"],"file":"tokenize.js"}
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