83 lines
2.3 KiB
JavaScript
83 lines
2.3 KiB
JavaScript
'use strict';
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/* exported metaParser */
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const metaParser = (() => {
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require(['/vendor/usercss-meta/usercss-meta.min']); /* global usercssMeta */
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const {createParser, ParseError} = usercssMeta;
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const PREPROCESSORS = new Set(['default', 'uso', 'stylus', 'less']);
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/** Relaxed semver:
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* dot-separated digits sequence e.g. 1 or 1.2 or 1.2.3.4.5
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* optional pre-release chunk: "-" followed by dot-separated word characters, "-"
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* optional build chunk: "+" followed by dot-separated word characters, "-"
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*/
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const RX_VER = /^\d+(\.\d+)*(?:-(\w[-\w]*(\.[-\w]+)*))?(?:\+(\w[-\w]*(\.[-\w]+)*))?$/;
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const options = {
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validateKey: {
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preprocessor: state => {
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if (!PREPROCESSORS.has(state.value)) {
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throw new ParseError({
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code: 'unknownPreprocessor',
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args: [state.value],
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index: state.valueIndex,
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});
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}
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},
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version: state => {
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if (!RX_VER.test(state.value)) {
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throw new ParseError({
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code: 'invalidVersion',
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message: 'Invalid @version',
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index: state.valueIndex,
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});
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}
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},
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},
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validateVar: {
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select: state => {
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if (state.varResult.options.every(o => o.name !== state.value)) {
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throw new ParseError({
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code: 'invalidSelectValueMismatch',
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index: state.valueIndex,
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});
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}
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},
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color: state => {
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require(['/js/color/color-converter']); /* global colorConverter */
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const color = colorConverter.parse(state.value);
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if (!color) {
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throw new ParseError({
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code: 'invalidColor',
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args: [state.value],
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index: state.valueIndex,
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});
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}
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state.value = colorConverter.format(color, 'rgb');
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},
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},
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};
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const parser = createParser(options);
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const looseParser = createParser(Object.assign({}, options, {
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allowErrors: true,
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unknownKey: 'throw',
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}));
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return {
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lint: looseParser.parse,
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parse: parser.parse,
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nullifyInvalidVars(vars) {
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for (const va of Object.values(vars)) {
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if (va.value !== null) {
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try {
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parser.validateVar(va);
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} catch (err) {
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va.value = null;
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}
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}
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}
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return vars;
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},
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};
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})();
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