getresponse / includes / classes / Mustache / Loader / InlineLoader.php

InlineLoader.php in GetResponse Forms by Optin Cat 1.4.0, at includes/classes/Mustache/Loader/InlineLoader.php

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1	<?php
2
3	/*
4	* This file is part of Mustache.php.
5	*
6	* (c) 2010-2014 Justin Hileman
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	/**
13	* A Mustache Template loader for inline templates.
14	*
15	* With the InlineLoader, templates can be defined at the end of any PHP source
16	* file:
17	*
18	* $loader = new Mustache_Loader_InlineLoader(__FILE__, __COMPILER_HALT_OFFSET__);
19	* $hello = $loader->load('hello');
20	* $goodbye = $loader->load('goodbye');
21	*
22	* __halt_compiler();
23	*
24	* @@ hello
25	* Hello, {{ planet }}!
26	*
27	* @@ goodbye
28	* Goodbye, cruel {{ planet }}
29	*
30	* Templates are deliniated by lines containing only `@@ name`.
31	*
32	* The InlineLoader is well-suited to micro-frameworks such as Silex:
33	*
34	* $app->register(new MustacheServiceProvider, array(
35	* 'mustache.loader' => new Mustache_Loader_InlineLoader(__FILE__, __COMPILER_HALT_OFFSET__)
36	* ));
37	*
38	* $app->get('/{name}', function ($name) use ($app) {
39	* return $app['mustache']->render('hello', compact('name'));
40	* })
41	* ->value('name', 'world');
42	*
43	* // ...
44	*
45	* __halt_compiler();
46	*
47	* @@ hello
48	* Hello, {{ name }}!
49	*
50	*/
51	class Mustache_Loader_InlineLoader implements Mustache_Loader
52	{
53	protected $fileName;
54	protected $offset;
55	protected $templates;
56
57	/**
58	* The InlineLoader requires a filename and offset to process templates.
59	* The magic constants `__FILE__` and `__COMPILER_HALT_OFFSET__` are usually
60	* perfectly suited to the job:
61	*
62	* $loader = new Mustache_Loader_InlineLoader(__FILE__, __COMPILER_HALT_OFFSET__);
63	*
64	* Note that this only works if the loader is instantiated inside the same
65	* file as the inline templates. If the templates are located in another
66	* file, it would be necessary to manually specify the filename and offset.
67	*
68	* @param string $fileName The file to parse for inline templates
69	* @param int $offset A string offset for the start of the templates.
70	* This usually coincides with the `__halt_compiler`
71	* call, and the `__COMPILER_HALT_OFFSET__`.
72	*/
73	public function __construct($fileName, $offset)
74	{
75	if (!is_file($fileName)) {
76	throw new Mustache_Exception_InvalidArgumentException('InlineLoader expects a valid filename.');
77	}
78
79	if (!is_int($offset) \|\| $offset < 0) {
80	throw new Mustache_Exception_InvalidArgumentException('InlineLoader expects a valid file offset.');
81	}
82
83	$this->fileName = $fileName;
84	$this->offset = $offset;
85	}
86
87	/**
88	* Load a Template by name.
89	*
90	* @throws Mustache_Exception_UnknownTemplateException If a template file is not found.
91	*
92	* @param string $name
93	*
94	* @return string Mustache Template source
95	*/
96	public function load($name)
97	{
98	$this->loadTemplates();
99
100	if (!array_key_exists($name, $this->templates)) {
101	throw new Mustache_Exception_UnknownTemplateException($name);
102	}
103
104	return $this->templates[$name];
105	}
106
107	/**
108	* Parse and load templates from the end of a source file.
109	*/
110	protected function loadTemplates()
111	{
112	if ($this->templates === null) {
113	$this->templates = array();
114	$data = file_get_contents($this->fileName, false, null, $this->offset);
115	foreach (preg_split("/^@@(?= [\w\d\.]+$)/m", $data, -1) as $chunk) {
116	if (trim($chunk)) {
117	list($name, $content) = explode("\n", $chunk, 2);
118	$this->templates[trim($name)] = trim($content);
119	}
120	}
121	}
122	}
123	}
124