51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
/* global usercssMeta colorConverter */
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'use strict';
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// eslint-disable-next-line no-var
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var metaParser = (() => {
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const parser = usercssMeta.createParser({
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validateVar: {
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select: state => {
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if (state.value !== null && state.varResult.options.every(o => o.name !== state.value)) {
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throw new Error('select value mismatch');
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}
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},
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color: state => {
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if (state.value !== null) {
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const color = colorConverter.parse(state.value);
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if (!color) {
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throw new Error(`invalid color: ${state.value}`);
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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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});
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return {parse, nullifyInvalidVars};
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function parse(text, indexOffset) {
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try {
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return parser.parse(text);
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} catch (err) {
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if (typeof err.index === 'number') {
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err.index += indexOffset;
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}
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throw err;
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}
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}
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function 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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continue;
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}
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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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return vars;
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}
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})();
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