100 lines
2.8 KiB
JavaScript
100 lines
2.8 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
const dataPatch = require('./data-patch.cjs');
|
||
|
|
|
||
|
|
const mdnAtrules = require('mdn-data/css/at-rules.json');
|
||
|
|
const mdnProperties = require('mdn-data/css/properties.json');
|
||
|
|
const mdnSyntaxes = require('mdn-data/css/syntaxes.json');
|
||
|
|
|
||
|
|
const extendSyntax = /^\s*\|\s*/;
|
||
|
|
|
||
|
|
function preprocessAtrules(dict) {
|
||
|
|
const result = Object.create(null);
|
||
|
|
|
||
|
|
for (const atruleName in dict) {
|
||
|
|
const atrule = dict[atruleName];
|
||
|
|
let descriptors = null;
|
||
|
|
|
||
|
|
if (atrule.descriptors) {
|
||
|
|
descriptors = Object.create(null);
|
||
|
|
|
||
|
|
for (const descriptor in atrule.descriptors) {
|
||
|
|
descriptors[descriptor] = atrule.descriptors[descriptor].syntax;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
result[atruleName.substr(1)] = {
|
||
|
|
prelude: atrule.syntax.trim().replace(/\{(.|\s)+\}/, '').match(/^@\S+\s+([^;\{]*)/)[1].trim() || null,
|
||
|
|
descriptors
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
function patchDictionary(dict, patchDict) {
|
||
|
|
const result = {};
|
||
|
|
|
||
|
|
// copy all syntaxes for an original dict
|
||
|
|
for (const key in dict) {
|
||
|
|
result[key] = dict[key].syntax || dict[key];
|
||
|
|
}
|
||
|
|
|
||
|
|
// apply a patch
|
||
|
|
for (const key in patchDict) {
|
||
|
|
if (key in dict) {
|
||
|
|
if (patchDict[key].syntax) {
|
||
|
|
result[key] = extendSyntax.test(patchDict[key].syntax)
|
||
|
|
? result[key] + ' ' + patchDict[key].syntax.trim()
|
||
|
|
: patchDict[key].syntax;
|
||
|
|
} else {
|
||
|
|
delete result[key];
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (patchDict[key].syntax) {
|
||
|
|
result[key] = patchDict[key].syntax.replace(extendSyntax, '');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
function patchAtrules(dict, patchDict) {
|
||
|
|
const result = {};
|
||
|
|
|
||
|
|
// copy all syntaxes for an original dict
|
||
|
|
for (const key in dict) {
|
||
|
|
const atrulePatch = patchDict[key] || {};
|
||
|
|
|
||
|
|
result[key] = {
|
||
|
|
prelude: key in patchDict && 'prelude' in atrulePatch
|
||
|
|
? atrulePatch.prelude
|
||
|
|
: dict[key].prelude || null,
|
||
|
|
descriptors: patchDictionary(dict[key].descriptors || {}, atrulePatch.descriptors || {})
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
// apply a patch
|
||
|
|
for (const key in patchDict) {
|
||
|
|
if (!hasOwnProperty.call(dict, key)) {
|
||
|
|
const atrulePatch = patchDict[key] || {};
|
||
|
|
|
||
|
|
result[key] = {
|
||
|
|
prelude: atrulePatch.prelude || null,
|
||
|
|
descriptors: atrulePatch.descriptors && patchDictionary({}, atrulePatch.descriptors)
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
const definitions = {
|
||
|
|
types: patchDictionary(mdnSyntaxes, dataPatch.types),
|
||
|
|
atrules: patchAtrules(preprocessAtrules(mdnAtrules), dataPatch.atrules),
|
||
|
|
properties: patchDictionary(mdnProperties, dataPatch.properties)
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = definitions;
|