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61 lines
1.6 KiB
61 lines
1.6 KiB
3 years ago
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var mdnAtrules = require('mdn-data/css/at-rules.json');
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var mdnProperties = require('mdn-data/css/properties.json');
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var mdnSyntaxes = require('mdn-data/css/syntaxes.json');
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var patch = require('./patch.json');
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function preprocessAtrules(dict) {
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var result = Object.create(null);
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for (var atruleName in dict) {
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var atrule = dict[atruleName];
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var descriptors = null;
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if (atrule.descriptors) {
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descriptors = Object.create(null);
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for (var descriptor in atrule.descriptors) {
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descriptors[descriptor] = atrule.descriptors[descriptor].syntax;
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}
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}
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result[atruleName.substr(1)] = {
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prelude: atrule.syntax.trim().match(/^@\S+\s+([^;\{]*)/)[1].trim() || null,
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descriptors
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};
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}
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return result;
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}
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function buildDictionary(dict, patchDict) {
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var result = {};
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// copy all syntaxes for an original dict
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for (var key in dict) {
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result[key] = dict[key].syntax;
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}
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// apply a patch
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for (var key in patchDict) {
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if (key in dict) {
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if (patchDict[key].syntax) {
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result[key] = patchDict[key].syntax;
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} else {
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delete result[key];
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}
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} else {
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if (patchDict[key].syntax) {
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result[key] = patchDict[key].syntax;
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}
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}
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}
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return result;
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}
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module.exports = {
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types: buildDictionary(mdnSyntaxes, patch.syntaxes),
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atrules: preprocessAtrules(mdnAtrules),
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properties: buildDictionary(mdnProperties, patch.properties)
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};
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