104 lines
2.9 KiB
JavaScript
Vendored
104 lines
2.9 KiB
JavaScript
Vendored
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 patch = require('./patch.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().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 unpackSyntaxes(dict) {
|
|
const result = {};
|
|
|
|
for (const key in dict) {
|
|
result[key] = dict[key].syntax;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
function patchAtrules(dict, patchDict) {
|
|
const result = {};
|
|
|
|
// copy all syntaxes for an original dict
|
|
for (const key in dict) {
|
|
const patchDescriptors = (patchDict[key] && patchDict[key].descriptors) || null;
|
|
|
|
result[key] = {
|
|
prelude: key in patchDict && 'prelude' in patchDict[key]
|
|
? patchDict[key].prelude
|
|
: dict[key].prelude || null,
|
|
descriptors: dict[key].descriptors
|
|
? patchDictionary(dict[key].descriptors, patchDescriptors || {})
|
|
: patchDescriptors && unpackSyntaxes(patchDescriptors)
|
|
};
|
|
}
|
|
|
|
// apply a patch
|
|
for (const key in patchDict) {
|
|
if (!hasOwnProperty.call(dict, key)) {
|
|
result[key] = {
|
|
prelude: patchDict[key].prelude || null,
|
|
descriptors: patchDict[key].descriptors && unpackSyntaxes(patchDict[key].descriptors)
|
|
};
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
module.exports = {
|
|
types: patchDictionary(mdnSyntaxes, patch.syntaxes),
|
|
atrules: patchAtrules(preprocessAtrules(mdnAtrules), patch.atrules),
|
|
properties: patchDictionary(mdnProperties, patch.properties)
|
|
};
|