94 lines
2.2 KiB
JavaScript
94 lines
2.2 KiB
JavaScript
const path = require('path');
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const fs = require('fs');
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const Latex = require('./latex');
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const examples = require('./examples');
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const skipEquations = process.argv.indexOf('--no-equations') !== -1;
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const equationRenderer = new Latex.Renderer();
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let target;
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/**
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* Rewrites the fonts in the output CSS to replace them with our own.
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* Do this instead of overriding for load times and reduction in hackery.
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*/
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function rewriteFonts() {
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const style = path.join(target, 'css', 'style.css');
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const css = fs.readFileSync(style)
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.toString()
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.replace(/@import url\(.*?Roboto.*?\);/, `@import url('https://fonts.googleapis.com/css?family=Open+Sans:400,600|Source+Code+Pro:400,600');`)
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.replace(/Roboto/g, 'Open Sans');
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fs.writeFileSync(style, `
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${css}
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code {
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font-family: 'Source Code Pro', monospace;
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}
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pre > code {
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padding: 0.75em 1em;
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line-height: 1.5em;
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}
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ul, ol {
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margin-bottom: 15px;
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}
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hr {
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border: 0;
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height: 2px;
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background: #f5f5f5;
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margin: 15px 0;
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}
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blockquote {
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border-left: 3px solid #eee;
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padding-left: 0.75em;
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margin-bottom: 15px;
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color: #999;
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font-size: 0.9em;
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}
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img.equation {
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box-shadow: none !important;
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margin: 0 auto;
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display: block;
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}
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`);
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}
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exports.onHandleHTML = ev => {
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if (skipEquations || !ev.data.fileName.startsWith('class')) {
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return;
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}
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let match;
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while ((match = (/\$example ([a-z.]+)/i.exec(ev.data.html))) !== null) {
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const example = examples[match[1]];
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if (!example) {
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throw new Error(`Could not find example ${match[1]}, try rerunning tests?`);
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}
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ev.data.html = ev.data.html.slice(0, match.index) +
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`<img class="equation" src="./image/${equationRenderer.push(example)}" alt="Equation">` +
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ev.data.html.slice(match.index + match[0].length);
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}
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};
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exports.onHandleTag = ev => {
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for (const tag of ev.data.tag) {
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tag.importPath = 'sylvester';
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}
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};
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exports.onHandleConfig = ev => {
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target = path.join(process.cwd(), ev.data.config.destination);
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};
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exports.onComplete = () => {
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rewriteFonts();
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console.log(`latex: rendering ${equationRenderer.length()} equations...`);
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equationRenderer.render(path.join(target, 'image'));
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};
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