stylus/js/meta-parser.js

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JavaScript
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2018-09-25 13:18:39 +00:00
/* global usercssMeta colorConverter */
'use strict';
// eslint-disable-next-line no-var
var metaParser = (() => {
const parser = usercssMeta.createParser({
validateVar: {
select: state => {
if (state.value !== null && state.varResult.options.every(o => o.name !== state.value)) {
throw new Error('select value mismatch');
}
},
color: state => {
if (state.value !== null) {
colorConverter.format(colorConverter.parse(state.value), 'rgb');
}
}
}
});
return {parse, nullifyInvalidVars};
function parse(text, indexOffset) {
try {
return parser.parse(text);
} catch (err) {
if (typeof err.index === 'number') {
err.index += indexOffset;
}
throw err;
}
}
function nullifyInvalidVars(vars) {
for (const va of Object.values(vars)) {
if (va.value === null) {
continue;
}
try {
parser.validateVar(va);
} catch (err) {
va.value = null;
}
}
return vars;
}
})();