maxbuttons / assets / libraries / scssphp / src / Formatter.php

Formatter.php in MaxButtons – Create buttons 6.3, at assets/libraries/scssphp/src/Formatter.php

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1	<?php
2	/**
3	* SCSSPHP
4	*
5	* @copyright 2012-2015 Leaf Corcoran
6	*
7	* @license http://opensource.org/licenses/MIT MIT
8	*
9	* @link http://leafo.github.io/scssphp
10	*/
11
12	namespace Leafo\ScssPhp;
13
14	/**
15	* SCSS base formatter
16	*
17	* @author Leaf Corcoran <leafot@gmail.com>
18	*/
19	abstract class Formatter
20	{
21	/**
22	* @var integer
23	*/
24	public $indentLevel;
25
26	/**
27	* @var string
28	*/
29	public $indentChar;
30
31	/**
32	* @var string
33	*/
34	public $break;
35
36	/**
37	* @var string
38	*/
39	public $open;
40
41	/**
42	* @var string
43	*/
44	public $close;
45
46	/**
47	* @var string
48	*/
49	public $tagSeparator;
50
51	/**
52	* @var string
53	*/
54	public $assignSeparator;
55
56	abstract public function __construct();
57
58	/**
59	* Return indentation (whitespace)
60	*
61	* @return string
62	*/
63	protected function indentStr()
64	{
65	return '';
66	}
67
68	/**
69	* Return property assignment
70	*
71	* @param string $name
72	* @param mixed $value
73	*
74	* @return string
75	*/
76	public function property($name, $value)
77	{
78	return rtrim($name) . $this->assignSeparator . $value . ';';
79	}
80
81	/**
82	* Strip semi-colon appended by property(); it's a separator, not a terminator
83	*
84	* @param array $lines
85	*/
86	public function stripSemicolon(&$lines)
87	{
88	}
89
90	/**
91	* Output lines inside a block
92	*
93	* @param \stdClass $block
94	*/
95	protected function blockLines($block)
96	{
97	$inner = $this->indentStr();
98
99	$glue = $this->break . $inner;
100
101	echo $inner . implode($glue, $block->lines);
102
103	if (! empty($block->children)) {
104	echo $this->break;
105	}
106	}
107
108	/**
109	* Output block selectors
110	*
111	* @param \stdClass $block
112	*/
113	protected function blockSelectors($block)
114	{
115	$inner = $this->indentStr();
116
117	echo $inner
118	. implode($this->tagSeparator, $block->selectors)
119	. $this->open . $this->break;
120	}
121
122	/**
123	* Output block children
124	*
125	* @param \stdClass $block
126	*/
127	protected function blockChildren($block)
128	{
129	foreach ($block->children as $child) {
130	$this->block($child);
131	}
132	}
133
134	/**
135	* Output non-empty block
136	*
137	* @param \stdClass $block
138	*/
139	protected function block($block)
140	{
141	if (empty($block->lines) && empty($block->children)) {
142	return;
143	}
144
145	$pre = $this->indentStr();
146
147	if (! empty($block->selectors)) {
148	$this->blockSelectors($block);
149
150	$this->indentLevel++;
151	}
152
153	if (! empty($block->lines)) {
154	$this->blockLines($block);
155	}
156
157	if (! empty($block->children)) {
158	$this->blockChildren($block);
159	}
160
161	if (! empty($block->selectors)) {
162	$this->indentLevel--;
163
164	if (empty($block->children)) {
165	echo $this->break;
166	}
167
168	echo $pre . $this->close . $this->break;
169	}
170	}
171
172	/**
173	* Entry point to formatting a block
174	*
175	* @param \stdClass $block An abstract syntax tree
176	*
177	* @return string
178	*/
179	public function format($block)
180	{
181	ob_start();
182
183	$this->block($block);
184
185	$out = ob_get_clean();
186
187	return $out;
188	}
189	}
190