Runner::setDefaultConvertors() - Code Metrics - Inspection of "WiP" - s9e/TextFormatter - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — XPathConvertorRefactor (13c9f8)

by Josh

created 2018-06-06 22:39 UTC

Runner::setDefaultConvertors() A

↳ Parent: Runner::addConvertor()

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	4
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0

<?php

/**
* @package   s9e\TextFormatter
* @copyright Copyright (c) 2010-2018 The s9e Authors
* @license   http://www.opensource.org/licenses/mit-license.php The MIT License
*/
namespace s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor;

use RuntimeException;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\AbstractConvertor;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\BooleanFunctions;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\BooleanOperators;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\Comparisons;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\Core;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\Math;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\MultiByteStringManipulation;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\SingleByteStringFunctions;
use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\SingleByteStringManipulation;

class Runner
{
	/**
	* @var array
	*/
	protected $callbacks;

	/**
	* @var array
	*/
	protected $groups;

	/**
	* @var string
	*/
	protected $regexp = '((?!))';

	/**
	* @var array
	*/
	protected $regexps;

	/**
	* Constructor
	*
	* @return void
	*/
	public function __construct()
	{
		$this->setConvertors($this->getDefaultConvertors());
	}

	/**
	* Convert given XPath expression to PHP
	*
	* @param  string $expr
	* @return string
	*/
	public function convert($expr)
	{
		if (preg_match($this->regexp, $expr, $m))
		{
			foreach (array_reverse(array_keys($m)) as $name)
			{
				if (isset($this->callbacks[$name]))
				{
					return call_user_func_array($this->callbacks[$name], $this->getArguments($m, $name));
				}
			}
		}

		throw new RuntimeException("Cannot convert '" . $expr . "'");
	}

	/**
	* Set the list of convertors used by this instance
	*
	* @param  AbstractConvertor[] $convertors
	* @return void
	*/
	public function setConvertors(array $convertors)
	{
		$this->callbacks = [];
		$this->groups    = [];
		$this->regexps   = [];
		foreach ($convertors as $convertor)
		{
			$this->addConvertor($convertor);
		}

		// Sort regexps by length to keep their order consistent
		$this->sortRegexps();

		// Add regexp groups
		foreach ($this->groups as $group => $captures)
		{
			sort($captures);
			$this->regexps[$group] = '(?<' . $group . '>' . implode('|', $captures) . ')';
		}

		$this->regexp = '(^(?:' . implode('|', $this->regexps) . ')$)';
	}

	/**
	* Add a convertor to the list used by this instance
	*
	* @param  AbstractConvertor $convertor
	* @return void
	*/
	protected function addConvertor(AbstractConvertor $convertor)
	{
		foreach ($convertor->getRegexpGroups() as $name => $group)
		{
			$this->groups[$group][] = '(?&' . $name . ')';
		}

		foreach ($convertor->getRegexps() as $name => $regexp)
		{
			$regexp = $this->insertCaptureNames($name, $regexp);
			$regexp = str_replace(' ', '\\s*', $regexp);
			$regexp = '(?<' . $name . '>' . $regexp . ')';

			$this->callbacks[$name] = [$convertor, 'convert' . $name];
			$this->regexps[$name]   = $regexp;
		}
	}

	/**
	* Get the list of arguments produced by a regexp's match
	*
	* @param  string[] $matches Regexp matches
	* @param  string   $name    Regexp name
	* @return string[]
	*/
	protected function getArguments(array $matches, $name)
	{
		$args = [];
		$i    = 0;
		while (isset($matches[$name . $i]))
		{
			$args[] = $matches[$name . $i];
			++$i;
		}

		return $args;
	}

	/**
	* Return the default list of convertors
	*
	* @return AbstractConvertor[]
	*/
	protected function getDefaultConvertors()
	{
		$convertors   = [];
		$convertors[] = new BooleanFunctions($this);
		$convertors[] = new BooleanOperators($this);
		$convertors[] = new Comparisons($this);
		$convertors[] = new Core($this);
		$convertors[] = new Math($this);
		if (extension_loaded('mbstring'))
		{
			$convertors[] = new MultiByteStringManipulation($this);
		}
		$convertors[] = new SingleByteStringFunctions($this);
		$convertors[] = new SingleByteStringManipulation($this);

		return $convertors;
	}

	/**
	* Insert capture names into given regexp
	*
	* @param  string $name   Name of the regexp, used to name captures
	* @param  string $regexp Original regexp
	* @return string         Modified regexp
	*/
	protected function insertCaptureNames($name, $regexp)
	{
		$i = 0;

		return preg_replace_callback(
			'((?<!\\\\)\\((?!\\?))',
			function ($m) use (&$i, $name)
			{
				return '(?<' . $name . $i++ . '>';
			},
			$regexp
		);
	}

	/**
	* Sort regexps by length
	*
	* @return void
	*/
	protected function sortRegexps()
	{
		uasort(
			$this->regexps,
			function ($a, $b)
			{
				return strlen($b) - strlen($a);
			}
		);
	}
}

1			<?php
2
3			/**
4			* @package s9e\TextFormatter
5			* @copyright Copyright (c) 2010-2018 The s9e Authors
6			* @license http://www.opensource.org/licenses/mit-license.php The MIT License
7			*/
8			namespace s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor;
9
10			use RuntimeException;
11			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\AbstractConvertor;
12			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\BooleanFunctions;
13			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\BooleanOperators;
14			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\Comparisons;
15			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\Core;
16			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\Math;
17			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\MultiByteStringManipulation;
18			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\SingleByteStringFunctions;
19			use s9e\TextFormatter\Configurator\RendererGenerators\PHP\XPathConvertor\Convertors\SingleByteStringManipulation;
20
21			class Runner
22			{
23			/**
24			* @var array
25			*/
26			protected $callbacks;
27
28			/**
29			* @var array
30			*/
31			protected $groups;
32
33			/**
34			* @var string
35			*/
36			protected $regexp = '((?!))';
37
38			/**
39			* @var array
40			*/
41			protected $regexps;
42
43			/**
44			* Constructor
45			*
46			* @return void
47			*/
48			public function __construct()
49			{
50			$this->setConvertors($this->getDefaultConvertors());
51			}
52
53			/**
54			* Convert given XPath expression to PHP
55			*
56			* @param string $expr
57			* @return string
58			*/
59			public function convert($expr)
60			{
61			if (preg_match($this->regexp, $expr, $m))
62			{
63			foreach (array_reverse(array_keys($m)) as $name)
64			{
65			if (isset($this->callbacks[$name]))
66			{
67			return call_user_func_array($this->callbacks[$name], $this->getArguments($m, $name));
68			}
69			}
70			}
71
72			throw new RuntimeException("Cannot convert '" . $expr . "'");
73			}
74
75			/**
76			* Set the list of convertors used by this instance
77			*
78			* @param AbstractConvertor[] $convertors
79			* @return void
80			*/
81			public function setConvertors(array $convertors)
82			{
83			$this->callbacks = [];
84			$this->groups = [];
85			$this->regexps = [];
86			foreach ($convertors as $convertor)
87			{
88			$this->addConvertor($convertor);
89			}
90
91			// Sort regexps by length to keep their order consistent
92			$this->sortRegexps();
93
94			// Add regexp groups
95			foreach ($this->groups as $group => $captures)
96			{
97			sort($captures);
98			$this->regexps[$group] = '(?<' . $group . '>' . implode('\|', $captures) . ')';
99			}
100
101			$this->regexp = '(^(?:' . implode('\|', $this->regexps) . ')$)';
102			}
103
104			/**
105			* Add a convertor to the list used by this instance
106			*
107			* @param AbstractConvertor $convertor
108			* @return void
109			*/
110			protected function addConvertor(AbstractConvertor $convertor)
111			{
112			foreach ($convertor->getRegexpGroups() as $name => $group)
113			{
114			$this->groups[$group][] = '(?&' . $name . ')';
115			}
116
117			foreach ($convertor->getRegexps() as $name => $regexp)
118			{
119			$regexp = $this->insertCaptureNames($name, $regexp);
120			$regexp = str_replace(' ', '\\s*', $regexp);
121			$regexp = '(?<' . $name . '>' . $regexp . ')';
122
123			$this->callbacks[$name] = [$convertor, 'convert' . $name];
124			$this->regexps[$name] = $regexp;
125			}
126			}
127
128			/**
129			* Get the list of arguments produced by a regexp's match
130			*
131			* @param string[] $matches Regexp matches
132			* @param string $name Regexp name
133			* @return string[]
134			*/
135			protected function getArguments(array $matches, $name)
136			{
137			$args = [];
138			$i = 0;
139			while (isset($matches[$name . $i]))
140			{
141			$args[] = $matches[$name . $i];
142			++$i;
143			}
144
145			return $args;
146			}
147
148			/**
149			* Return the default list of convertors
150			*
151			* @return AbstractConvertor[]
152			*/
153			protected function getDefaultConvertors()
154			{
155			$convertors = [];
156			$convertors[] = new BooleanFunctions($this);
157			$convertors[] = new BooleanOperators($this);
158			$convertors[] = new Comparisons($this);
159			$convertors[] = new Core($this);
160			$convertors[] = new Math($this);
161			if (extension_loaded('mbstring'))
162			{
163			$convertors[] = new MultiByteStringManipulation($this);
164			}
165			$convertors[] = new SingleByteStringFunctions($this);
166			$convertors[] = new SingleByteStringManipulation($this);
167
168			return $convertors;
169			}
170
171			/**
172			* Insert capture names into given regexp
173			*
174			* @param string $name Name of the regexp, used to name captures
175			* @param string $regexp Original regexp
176			* @return string Modified regexp
177			*/
178			protected function insertCaptureNames($name, $regexp)
179			{
180			$i = 0;
181
182			return preg_replace_callback(
183			'((?<!\\\\)\\((?!\\?))',
184			function ($m) use (&$i, $name)
185			{
186			return '(?<' . $name . $i++ . '>';
187			},
188			$regexp
189			);
190			}
191
192			/**
193			* Sort regexps by length
194			*
195			* @return void
196			*/
197			protected function sortRegexps()
198			{
199			uasort(
200			$this->regexps,
201			function ($a, $b)
202			{
203			return strlen($b) - strlen($a);
204			}
205			);
206			}
207			}

s9e / TextFormatter

Branch — XPathConvertorRefactor (13c9f8)

Runner::setDefaultConvertors() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like