80 lines
1.8 KiB
JavaScript
80 lines
1.8 KiB
JavaScript
/* global marked */
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var versionCache = {};
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var currentVersion;
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onmessage = function (e) {
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if (e.data.version === currentVersion) {
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parse(e);
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} else {
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getVersion(e.data.version).then(function (text) {
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// eslint-disable-next-line no-new-func
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Function(text)();
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currentVersion = e.data.version;
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parse(e);
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});
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}
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};
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onunhandledrejection = function (e) {
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throw e.reason;
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};
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function parse(e) {
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switch (e.data.task) {
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case 'defaults':
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var defaults = marked.getDefaults();
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defaults.renderer = null;
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postMessage({
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task: e.data.task,
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defaults: defaults
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});
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break;
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case 'parse':
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var startTime = new Date();
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var lexed = marked.lexer(e.data.markdown, e.data.options);
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var lexedList = [];
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for (var i = 0; i < lexed.length; i++) {
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var lexedLine = [];
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for (var j in lexed[i]) {
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lexedLine.push(j + ':' + jsonString(lexed[i][j]));
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}
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lexedList.push('{' + lexedLine.join(', ') + '}');
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}
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var parsed = marked.parser(lexed, e.data.options);
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var endTime = new Date();
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// setTimeout(function () {
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postMessage({
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task: e.data.task,
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lexed: lexedList.join('\n'),
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parsed: parsed,
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time: endTime - startTime
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});
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// }, 10000);
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break;
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}
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}
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function jsonString(input) {
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var output = (input + '')
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.replace(/\n/g, '\\n')
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.replace(/\r/g, '\\r')
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.replace(/\t/g, '\\t')
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.replace(/\f/g, '\\f')
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.replace(/[\\"']/g, '\\$&')
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.replace(/\u0000/g, '\\0');
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return '"' + output + '"';
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};
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function getVersion(ver) {
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if (ver in versionCache) {
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return Promise.resolve(versionCache[ver]);
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}
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return fetch(ver)
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.then(function (res) { return res.text(); })
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.then(function (text) {
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versionCache[ver] = text;
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return text;
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});
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}
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