upstream / vendor / symfony / console / Formatter / OutputFormatterStyleStack.php

OutputFormatterStyleStack.php in UpStream: a Project Management Plugin for WordPress trunk, at vendor/symfony/console/Formatter/OutputFormatterStyleStack.php

110 lines 2.4 KB

Raw Download Zip

1	<?php
2
3	/*
4	* This file is part of the Symfony package.
5	*
6	* (c) Fabien Potencier <fabien@symfony.com>
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	namespace Symfony\Component\Console\Formatter;
13
14	use Symfony\Component\Console\Exception\InvalidArgumentException;
15
16	/**
17	* @author Jean-François Simon <contact@jfsimon.fr>
18	*/
19	class OutputFormatterStyleStack
20	{
21	/**
22	* @var OutputFormatterStyleInterface[]
23	*/
24	private $styles;
25
26	private $emptyStyle;
27
28	public function __construct(OutputFormatterStyleInterface $emptyStyle = null)
29	{
30	$this->emptyStyle = $emptyStyle ?: new OutputFormatterStyle();
31	$this->reset();
32	}
33
34	/**
35	* Resets stack (ie. empty internal arrays).
36	*/
37	public function reset()
38	{
39	$this->styles = [];
40	}
41
42	/**
43	* Pushes a style in the stack.
44	*/
45	public function push(OutputFormatterStyleInterface $style)
46	{
47	$this->styles[] = $style;
48	}
49
50	/**
51	* Pops a style from the stack.
52	*
53	* @return OutputFormatterStyleInterface
54	*
55	* @throws InvalidArgumentException When style tags incorrectly nested
56	*/
57	public function pop(OutputFormatterStyleInterface $style = null)
58	{
59	if (empty($this->styles)) {
60	return $this->emptyStyle;
61	}
62
63	if (null === $style) {
64	return array_pop($this->styles);
65	}
66
67	foreach (array_reverse($this->styles, true) as $index => $stackedStyle) {
68	if ($style->apply('') === $stackedStyle->apply('')) {
69	$this->styles = \array_slice($this->styles, 0, $index);
70
71	return $stackedStyle;
72	}
73	}
74
75	throw new InvalidArgumentException('Incorrectly nested style tag found.');
76	}
77
78	/**
79	* Computes current style with stacks top codes.
80	*
81	* @return OutputFormatterStyle
82	*/
83	public function getCurrent()
84	{
85	if (empty($this->styles)) {
86	return $this->emptyStyle;
87	}
88
89	return $this->styles[\count($this->styles) - 1];
90	}
91
92	/**
93	* @return $this
94	*/
95	public function setEmptyStyle(OutputFormatterStyleInterface $emptyStyle)
96	{
97	$this->emptyStyle = $emptyStyle;
98
99	return $this;
100	}
101
102	/**
103	* @return OutputFormatterStyleInterface
104	*/
105	public function getEmptyStyle()
106	{
107	return $this->emptyStyle;
108	}
109	}
110