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

Formatter.php in MaxButtons – Create buttons 6.28, 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	use Leafo\ScssPhp\Formatter\OutputBlock;
15
16	/**
17	* SCSS base formatter
18	*
19	* @author Leaf Corcoran <leafot@gmail.com>
20	*/
21	abstract class Formatter
22	{
23	/**
24	* @var integer
25	*/
26	public $indentLevel;
27
28	/**
29	* @var string
30	*/
31	public $indentChar;
32
33	/**
34	* @var string
35	*/
36	public $break;
37
38	/**
39	* @var string
40	*/
41	public $open;
42
43	/**
44	* @var string
45	*/
46	public $close;
47
48	/**
49	* @var string
50	*/
51	public $tagSeparator;
52
53	/**
54	* @var string
55	*/
56	public $assignSeparator;
57
58	/**
59	* Initialize formatter
60	*
61	* @api
62	*/
63	abstract public function __construct();
64
65	/**
66	* Return indentation (whitespace)
67	*
68	* @return string
69	*/
70	protected function indentStr()
71	{
72	return '';
73	}
74
75	/**
76	* Return property assignment
77	*
78	* @api
79	*
80	* @param string $name
81	* @param mixed $value
82	*
83	* @return string
84	*/
85	public function property($name, $value)
86	{
87	return rtrim($name) . $this->assignSeparator . $value . ';';
88	}
89
90	/**
91	* Strip semi-colon appended by property(); it's a separator, not a terminator
92	*
93	* @api
94	*
95	* @param array $lines
96	*/
97	public function stripSemicolon(&$lines)
98	{
99	}
100
101	/**
102	* Output lines inside a block
103	*
104	* @param \Leafo\ScssPhp\Formatter\OutputBlock $block
105	*/
106	protected function blockLines(OutputBlock $block)
107	{
108	$inner = $this->indentStr();
109
110	$glue = $this->break . $inner;
111
112	echo $inner . implode($glue, $block->lines);
113
114	if (! empty($block->children)) {
115	echo $this->break;
116	}
117	}
118
119	/**
120	* Output block selectors
121	*
122	* @param \Leafo\ScssPhp\Formatter\OutputBlock $block
123	*/
124	protected function blockSelectors(OutputBlock $block)
125	{
126	$inner = $this->indentStr();
127
128	echo $inner
129	. implode($this->tagSeparator, $block->selectors)
130	. $this->open . $this->break;
131	}
132
133	/**
134	* Output block children
135	*
136	* @param \Leafo\ScssPhp\Formatter\OutputBlock $block
137	*/
138	protected function blockChildren(OutputBlock $block)
139	{
140	foreach ($block->children as $child) {
141	$this->block($child);
142	}
143	}
144
145	/**
146	* Output non-empty block
147	*
148	* @param \Leafo\ScssPhp\Formatter\OutputBlock $block
149	*/
150	protected function block(OutputBlock $block)
151	{
152	if (empty($block->lines) && empty($block->children)) {
153	return;
154	}
155
156	$pre = $this->indentStr();
157
158	if (! empty($block->selectors)) {
159	$this->blockSelectors($block);
160
161	$this->indentLevel++;
162	}
163
164	if (! empty($block->lines)) {
165	$this->blockLines($block);
166	}
167
168	if (! empty($block->children)) {
169	$this->blockChildren($block);
170	}
171
172	if (! empty($block->selectors)) {
173	$this->indentLevel--;
174
175	if (empty($block->children)) {
176	echo $this->break;
177	}
178
179	echo $pre . $this->close . $this->break;
180	}
181	}
182
183	/**
184	* Entry point to formatting a block
185	*
186	* @api
187	*
188	* @param \Leafo\ScssPhp\Formatter\OutputBlock $block An abstract syntax tree
189	*
190	* @return string
191	*/
192	public function format(OutputBlock $block)
193	{
194	ob_start();
195
196	$this->block($block);
197
198	$out = ob_get_clean();
199
200	return $out;
201	}
202	}
203