cd9bca4a89
Summary: Add an auto-render extension to render math on a page. It exposes a global function (maybe we should attach it to `katex`?) to render math in an element. It comes with a README on how to use it. Also, make `make build` build the minified file. Fixes #26 Test Plan: - Visit http://localhost:7936/contrib/auto-render/ - See that all of the math renders correctly - `make test` Reviewers: alpert, kevinb Reviewed By: kevinb Differential Revision: https://phabricator.khanacademy.org/D16620
77 lines
2.1 KiB
JavaScript
77 lines
2.1 KiB
JavaScript
var fs = require("fs");
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var path = require("path");
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var browserify = require("browserify");
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var express = require("express");
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var less = require("less");
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var app = express();
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app.use(express.logger());
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var serveBrowserified = function(file, standaloneName) {
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return function(req, res, next) {
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var b = browserify();
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b.add(file);
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var options = {};
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if (standaloneName) {
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options.standalone = standaloneName;
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}
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var stream = b.bundle(options);
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var body = "";
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stream.on("data", function(s) { body += s; });
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stream.on("error", function(e) { next(e); });
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stream.on("end", function() {
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res.setHeader("Content-Type", "text/javascript");
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res.send(body);
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});
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};
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};
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app.get("/katex.js", serveBrowserified("./katex", "katex"));
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app.get("/test/katex-spec.js", serveBrowserified("./test/katex-spec"));
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app.get("/contrib/auto-render/auto-render.js",
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serveBrowserified("./contrib/auto-render/auto-render",
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"renderMathInElement"));
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app.get("/katex.css", function(req, res, next) {
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fs.readFile("static/katex.less", {encoding: "utf8"}, function(err, data) {
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if (err) {
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next(err);
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return;
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}
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var parser = new less.Parser({
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paths: ["./static"],
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filename: "katex.less"
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});
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parser.parse(data, function(err, tree) {
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if (err) {
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next(err);
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return;
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}
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res.setHeader("Content-Type", "text/css");
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res.send(tree.toCSS());
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});
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});
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});
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app.use(express.static(path.join(__dirname, "static")));
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app.use(express.static(path.join(__dirname, "build")));
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app.use("/test", express.static(path.join(__dirname, "test")));
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app.use("/contrib", express.static(path.join(__dirname, "contrib")));
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app.use(function(err, req, res, next) {
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console.error(err.stack);
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res.setHeader("Content-Type", "text/plain");
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res.send(500, err.stack);
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});
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app.listen(7936);
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console.log("Serving on http://0.0.0.0:7936/ ...");
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