48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
/* global linter editorWorker */
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/* exported createMetaCompiler */
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'use strict';
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function createMetaCompiler(cm) {
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const updateListeners = [];
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let meta = null;
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let metaIndex = null;
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let cache = [];
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linter.register((text, options, _cm) => {
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if (_cm !== cm) {
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return;
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}
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const match = text.match(/\/\*\!?\s*==userstyle==[\s\S]*?==\/userstyle==\s*\*\//i);
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if (!match) {
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return [];
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}
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if (match[0] === meta && match.index === metaIndex) {
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return cache;
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}
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return editorWorker.metalint(match[0])
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.then(({metadata, errors}) => {
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if (errors.every(err => err.code === 'unknownMeta')) {
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for (const cb of updateListeners) {
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cb(metadata);
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}
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}
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cache = errors.map(err =>
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({
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from: cm.posFromIndex((err.index || 0) + match.index),
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to: cm.posFromIndex((err.index || 0) + match.index),
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message: err.code && chrome.i18n.getMessage(`meta_${err.code}`, err.args) || err.message,
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severity: err.code === 'unknownMeta' ? 'warning' : 'error',
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rule: err.code
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})
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);
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meta = match[0];
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metaIndex = match.index;
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return cache;
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});
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});
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return {
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onUpdated: cb => updateListeners.push(cb)
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};
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}
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