126 lines
3.2 KiB
JavaScript
Executable file
126 lines
3.2 KiB
JavaScript
Executable file
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _path = _interopRequireDefault(require("path"));
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var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
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var _normalizeUrl = _interopRequireDefault(require("normalize-url"));
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var _isAbsoluteUrl = _interopRequireDefault(require("is-absolute-url"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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const multiline = /\\[\r\n]/; // eslint-disable-next-line no-useless-escape
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const escapeChars = /([\s\(\)"'])/g;
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function convert(url, options) {
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if ((0, _isAbsoluteUrl.default)(url) || url.startsWith('//')) {
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let normalizedURL = null;
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try {
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normalizedURL = (0, _normalizeUrl.default)(url, options);
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} catch (e) {
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normalizedURL = url;
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}
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return normalizedURL;
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} // `path.normalize` always returns backslashes on Windows, need replace in `/`
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return _path.default.normalize(url).replace(new RegExp('\\' + _path.default.sep, 'g'), '/');
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}
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function transformNamespace(rule) {
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rule.params = (0, _postcssValueParser.default)(rule.params).walk(node => {
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if (node.type === 'function' && node.value.toLowerCase() === 'url' && node.nodes.length) {
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node.type = 'string';
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node.quote = node.nodes[0].quote || '"';
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node.value = node.nodes[0].value;
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}
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if (node.type === 'string') {
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node.value = node.value.trim();
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}
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return false;
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}).toString();
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}
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function transformDecl(decl, opts) {
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decl.value = (0, _postcssValueParser.default)(decl.value).walk(node => {
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if (node.type !== 'function' || node.value.toLowerCase() !== 'url') {
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return false;
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}
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node.before = node.after = '';
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if (!node.nodes.length) {
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return false;
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}
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let url = node.nodes[0];
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let escaped;
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url.value = url.value.trim().replace(multiline, ''); // Skip empty URLs
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// Empty URL function equals request to current stylesheet where it is declared
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if (url.value.length === 0) {
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url.quote = '';
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return false;
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}
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if (/^data:(.*)?,/i.test(url.value)) {
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return false;
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}
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if (!/^.+-extension:\//i.test(url.value)) {
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url.value = convert(url.value, opts);
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}
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if (escapeChars.test(url.value) && url.type === 'string') {
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escaped = url.value.replace(escapeChars, '\\$1');
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if (escaped.length < url.value.length + 2) {
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url.value = escaped;
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url.type = 'word';
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}
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} else {
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url.type = 'word';
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}
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return false;
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}).toString();
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}
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function pluginCreator(opts) {
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opts = Object.assign({}, {
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normalizeProtocol: false,
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stripHash: false,
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stripWWW: false,
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stripTextFragment: false
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}, opts);
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return {
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postcssPlugin: 'postcss-normalize-url',
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OnceExit(css) {
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css.walk(node => {
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if (node.type === 'decl') {
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return transformDecl(node, opts);
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} else if (node.type === 'atrule' && node.name.toLowerCase() === 'namespace') {
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return transformNamespace(node);
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}
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});
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}
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};
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}
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pluginCreator.postcss = true;
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var _default = pluginCreator;
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exports.default = _default;
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module.exports = exports.default; |