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85 lines
3.2 KiB
JavaScript
85 lines
3.2 KiB
JavaScript
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#!/usr/bin/env node
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/*
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* JavaScript Templates Compiler 2.4.0
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* https://github.com/blueimp/JavaScript-Templates
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*
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* Copyright 2011, Sebastian Tschan
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* https://blueimp.net
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*
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* Licensed under the MIT license:
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* http://www.opensource.org/licenses/MIT
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*/
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/*jslint nomen: true, stupid: true */
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/*global require, __dirname, process, console */
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(function () {
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"use strict";
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var tmpl = require("./tmpl.js").tmpl,
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fs = require("fs"),
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path = require("path"),
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uglifyJS = require("uglify-js"),
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// Retrieve the content of the minimal runtime:
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runtime = fs.readFileSync(__dirname + "/runtime.js", "utf8"),
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// A regular expression to parse templates from script tags in a HTML page:
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regexp = /<script( id="([\w\-]+)")? type="text\/x-tmpl"( id="([\w\-]+)")?>([\s\S]+?)<\/script>/gi,
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// A regular expression to match the helper function names:
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helperRegexp = new RegExp(
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tmpl.helper.match(/\w+(?=\s*=\s*function\s*\()/g).join("\\s*\\(|") + "\\s*\\("
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),
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// A list to store the function bodies:
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list = [],
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code;
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// Extend the Templating engine with a print method for the generated functions:
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tmpl.print = function (str) {
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// Only add helper functions if they are used inside of the template:
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var helper = helperRegexp.test(str) ? tmpl.helper : "",
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body = str.replace(tmpl.regexp, tmpl.func);
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if (helper || (/_e\s*\(/.test(body))) {
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helper = "_e=tmpl.encode" + helper + ",";
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}
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return "function(" + tmpl.arg + ",tmpl){" +
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("var " + helper + "_s='" + body + "';return _s;")
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.split("_s+='';").join("") + "}";
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};
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// Loop through the command line arguments:
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process.argv.forEach(function (file, index) {
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var listLength = list.length,
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stats,
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content,
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result,
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id;
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// Skipt the first two arguments, which are "node" and the script:
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if (index > 1) {
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stats = fs.statSync(file);
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if (!stats.isFile()) {
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console.error(file + ' is not a file.');
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return;
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}
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content = fs.readFileSync(file, "utf8");
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while (true) {
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// Find templates in script tags:
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result = regexp.exec(content);
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if (!result) {
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break;
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}
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id = result[2] || result[4];
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list.push("'" + id + "':" + tmpl.print(result[5]));
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}
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if (listLength === list.length) {
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// No template script tags found, use the complete content:
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id = path.basename(file, path.extname(file));
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list.push("'" + id + "':" + tmpl.print(content));
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}
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}
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});
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if (!list.length) {
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console.error('Missing input file.');
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return;
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}
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// Combine the generated functions as cache of the minimal runtime:
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code = runtime.replace("{}", "{" + list.join(",") + "}");
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// Generate the minified code and print it to the console output:
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console.log(uglifyJS.minify(code, {fromString: true}).code);
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}());
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