compile.js
3.16 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
#!/usr/bin/env node
/*
* JavaScript Templates Compiler 2.4.0
* https://github.com/blueimp/JavaScript-Templates
*
* Copyright 2011, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
*/
/*jslint nomen: true, stupid: true */
/*global require, __dirname, process, console */
(function () {
"use strict";
var tmpl = require("./tmpl.js").tmpl,
fs = require("fs"),
path = require("path"),
uglifyJS = require("uglify-js"),
// Retrieve the content of the minimal runtime:
runtime = fs.readFileSync(__dirname + "/runtime.js", "utf8"),
// A regular expression to parse templates from script tags in a HTML page:
regexp = /<script( id="([\w\-]+)")? type="text\/x-tmpl"( id="([\w\-]+)")?>([\s\S]+?)<\/script>/gi,
// A regular expression to match the helper function names:
helperRegexp = new RegExp(
tmpl.helper.match(/\w+(?=\s*=\s*function\s*\()/g).join("\\s*\\(|") + "\\s*\\("
),
// A list to store the function bodies:
list = [],
code;
// Extend the Templating engine with a print method for the generated functions:
tmpl.print = function (str) {
// Only add helper functions if they are used inside of the template:
var helper = helperRegexp.test(str) ? tmpl.helper : "",
body = str.replace(tmpl.regexp, tmpl.func);
if (helper || (/_e\s*\(/.test(body))) {
helper = "_e=tmpl.encode" + helper + ",";
}
return "function(" + tmpl.arg + ",tmpl){" +
("var " + helper + "_s='" + body + "';return _s;")
.split("_s+='';").join("") + "}";
};
// Loop through the command line arguments:
process.argv.forEach(function (file, index) {
var listLength = list.length,
stats,
content,
result,
id;
// Skipt the first two arguments, which are "node" and the script:
if (index > 1) {
stats = fs.statSync(file);
if (!stats.isFile()) {
console.error(file + ' is not a file.');
return;
}
content = fs.readFileSync(file, "utf8");
while (true) {
// Find templates in script tags:
result = regexp.exec(content);
if (!result) {
break;
}
id = result[2] || result[4];
list.push("'" + id + "':" + tmpl.print(result[5]));
}
if (listLength === list.length) {
// No template script tags found, use the complete content:
id = path.basename(file, path.extname(file));
list.push("'" + id + "':" + tmpl.print(content));
}
}
});
if (!list.length) {
console.error('Missing input file.');
return;
}
// Combine the generated functions as cache of the minimal runtime:
code = runtime.replace("{}", "{" + list.join(",") + "}");
// Generate the minified code and print it to the console output:
console.log(uglifyJS.minify(code, {fromString: true}).code);
}());