Add simple Prism syntax scraper

prism-langs.js

@@ -0,0 +1,97 @@
+/* eslint-disable no-console */
+
+const https = require('https');
+
+// Match version number to included copy
+https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.json', res => {
+	res.setEncoding('utf8');
+
+	let body = '';
+	res.on('data', data => {
+		body += data;
+	});
+
+	res.on('end', () => {
+		const components = JSON.parse(body);
+
+		const highlights = {};
+
+		// Split markup
+		for (let id in components.languages.markup.aliasTitles) {
+			components.languages[id] = {
+				title: components.languages.markup.aliasTitles[id]
+			};
+		}
+
+		for (let id in components.languages) {
+			if (id == 'meta') continue;
+			if (id == 'markup') continue;
+
+			const lang = components.languages[id];
+			const name = lang.title || lang;
+
+			const contents = [];
+			let alias = lang.alias;
+			if (typeof alias === 'string') alias = [alias];
+
+			if (alias) {
+				for (let i = 0, l = alias.length; i < l; i++) {
+					contents.push(alias[i]);
+				}
+			}
+
+			highlights[id] = {
+				name: name
+			};
+
+			if (contents.length) {
+				highlights[id].alias = contents;
+			}
+		}
+
+		// Default option
+		highlights[''] = {
+			name: 'Plain text'
+		};
+
+		// Manual overrides
+		highlights.asm6502.alias = ['asm'];
+		highlights.aspnet.alias = ['dotnet'];
+		highlights.sqf.name = 'SQF';
+		highlights.cpp.alias = ['cpp'];
+		highlights.csharp.alias.push('csharp', '.net');
+		highlights.csp.alias = ['csp'];
+		highlights['dns-zone-file'].alias.push('bind', 'named');
+		highlights.hpkp.alias = ['hpkp'];
+		highlights['js-extras'].name = 'JavaScript Extras';
+		highlights['js-templates'].name = 'JavaScript Templates';
+		highlights.json.alias = ['javascript object notation'];
+		highlights.json5.alias = ['javascript object notation'];
+		highlights.jsonp.alias = ['javascript object notation'];
+		// highlights.jsstacktrace.name = 'JavaScript stack trace';
+		// highlights.jsstacktrace.alias.push('javascript'];
+		highlights.nasm.alias = ['assembly'];
+		highlights.protobuf.alias = ['protobuf'];
+		highlights.pug.alias = ['jade'];
+		highlights.regex.alias = ['regular expression'];
+		highlights['shell-session'].alias = ['terminal', 'console'];
+		highlights['solution-file'].name = 'Visual Studio Solution';
+		highlights['solution-file'].alias.push('.net', 'dotnet');
+		highlights.vbnet.name = 'Visual Basic .NET';
+		highlights.vbnet.alias = ['vb', 'dotnet'];
+		highlights.wasm.alias = ['wasm', 'asm'];
+
+		// Sort
+		const ordered = {};
+		Object.keys(highlights).sort().forEach(function(key) {
+			ordered[key] = highlights[key];
+		});
+
+		// Format output
+		console.log(JSON.stringify(ordered)
+			.slice(1, -1)
+			.replace(/},"/g, '},\n"')
+			.replace(/:/g, ': ')
+			.replace(/,/g, ', '));
+	});
+});