1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.default = void 0;
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7 |
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8 | var _path = _interopRequireDefault(require("path"));
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9 |
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10 | var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
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11 |
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12 | var _normalizeUrl = _interopRequireDefault(require("normalize-url"));
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13 |
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14 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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15 |
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16 | const multiline = /\\[\r\n]/;
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17 |
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18 | const escapeChars = /([\s\(\)"'])/g;
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19 |
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20 |
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21 | const ABSOLUTE_URL_REGEX = /^[a-zA-Z][a-zA-Z\d+\-.]*?:/;
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22 |
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23 | const WINDOWS_PATH_REGEX = /^[a-zA-Z]:\\/;
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24 |
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25 |
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26 |
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27 |
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28 |
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29 |
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30 | function isAbsolute(url) {
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31 | if (WINDOWS_PATH_REGEX.test(url)) {
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32 | return false;
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33 | }
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34 |
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35 | return ABSOLUTE_URL_REGEX.test(url);
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36 | }
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37 |
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38 | function convert(url, options) {
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39 | if (isAbsolute(url) || url.startsWith('//')) {
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40 | let normalizedURL = null;
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41 |
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42 | try {
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43 | normalizedURL = (0, _normalizeUrl.default)(url, options);
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44 | } catch (e) {
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45 | normalizedURL = url;
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46 | }
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47 |
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48 | return normalizedURL;
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49 | }
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50 |
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51 |
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52 | return _path.default.normalize(url).replace(new RegExp('\\' + _path.default.sep, 'g'), '/');
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53 | }
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54 |
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55 | function transformNamespace(rule) {
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56 | rule.params = (0, _postcssValueParser.default)(rule.params).walk(node => {
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57 | if (node.type === 'function' && node.value.toLowerCase() === 'url' && node.nodes.length) {
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58 | node.type = 'string';
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59 | node.quote = node.nodes[0].quote || '"';
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60 | node.value = node.nodes[0].value;
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61 | }
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62 |
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63 | if (node.type === 'string') {
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64 | node.value = node.value.trim();
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65 | }
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66 |
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67 | return false;
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68 | }).toString();
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69 | }
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70 |
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71 | function transformDecl(decl, opts) {
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72 | decl.value = (0, _postcssValueParser.default)(decl.value).walk(node => {
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73 | if (node.type !== 'function' || node.value.toLowerCase() !== 'url') {
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74 | return false;
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75 | }
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76 |
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77 | node.before = node.after = '';
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78 |
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79 | if (!node.nodes.length) {
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80 | return false;
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81 | }
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82 |
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83 | let url = node.nodes[0];
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84 | let escaped;
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85 | url.value = url.value.trim().replace(multiline, '');
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86 |
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87 |
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88 | if (url.value.length === 0) {
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89 | url.quote = '';
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90 | return false;
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91 | }
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92 |
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93 | if (/^data:(.*)?,/i.test(url.value)) {
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94 | return false;
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95 | }
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96 |
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97 | if (!/^.+-extension:\//i.test(url.value)) {
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98 | url.value = convert(url.value, opts);
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99 | }
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100 |
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101 | if (escapeChars.test(url.value) && url.type === 'string') {
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102 | escaped = url.value.replace(escapeChars, '\\$1');
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103 |
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104 | if (escaped.length < url.value.length + 2) {
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105 | url.value = escaped;
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106 | url.type = 'word';
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107 | }
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108 | } else {
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109 | url.type = 'word';
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110 | }
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111 |
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112 | return false;
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113 | }).toString();
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114 | }
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115 |
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116 | function pluginCreator(opts) {
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117 | opts = Object.assign({}, {
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118 | normalizeProtocol: false,
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119 | sortQueryParameters: false,
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120 | stripHash: false,
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121 | stripWWW: false,
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122 | stripTextFragment: false
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123 | }, opts);
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124 | return {
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125 | postcssPlugin: 'postcss-normalize-url',
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126 |
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127 | OnceExit(css) {
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128 | css.walk(node => {
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129 | if (node.type === 'decl') {
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130 | return transformDecl(node, opts);
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131 | } else if (node.type === 'atrule' && node.name.toLowerCase() === 'namespace') {
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132 | return transformNamespace(node);
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133 | }
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134 | });
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135 | }
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136 |
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137 | };
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138 | }
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139 |
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140 | pluginCreator.postcss = true;
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141 | var _default = pluginCreator;
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142 | exports.default = _default;
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143 | module.exports = exports.default; |
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