Format::__construct() - Code Metrics - Inspection of "#7. Add format extension + test coverage + readme" - arthurkushman/querypath - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( e5ddcf...d13167 )

by Arthur

created 2018-08-04 09:30 UTC

Format::__construct() A

↳ Parent: Format

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php

namespace QueryPath\Extension;

use QueryPath\DOMQuery;
use QueryPath\Extension;
use QueryPath\Query;
use QueryPath\Exception;

/**
 * A QueryPath extension that adds extra methods for formatting node values.
 *
 * This extension provides two methods:
 *
 * - format()
 * - formatAttr()
 *
 * Usage:
 * <code>
 * <?php
 * QueryPath::enable('Noi\QueryPath\FormatExtension');
 * $qp = qp('<?xml version="1.0"?><root><item score="12000">TEST A</item><item score="9876.54">TEST B</item></root>');
 *
 * $qp->find('item')->format(function ($text) {
 *     return ucwords(strtolower($text));
 * });
 * $qp->find('item')->formatAttr('score', 'number_format', 2);
 *
 * $qp->writeXML();
 * </code>
 *
 * OUTPUT:
 * <code>
 * <?xml version="1.0"?>
 * <root>
 *   <item score="12,000.00">Test A</item>
 *   <item score="9,876.54">Test B</item>
 * </root>
 * </code>
 *
 * @see FormatExtension::format()
 * @see FormatExtension::formatAttr()
 *
 * @author Akihiro Yamanoi <[email protected]>
 */
class Format implements Extension
{
    protected $qp;

    public function __construct(Query $qp)
    {
        $this->qp = $qp;
    }

    /**
     * Formats the text content of each selected element in the current DOMQuery object.
     *
     * Usage:
     * <code>
     * <?php
     * QueryPath::enable('Noi\QueryPath\FormatExtension');
     * $qp = qp('<?xml version="1.0"?><root><div>Apple</div><div>Orange</div></root>');
     *
     * $qp->find('div')->format('strtoupper');
     * $qp->find('div')->format(function ($text) {
     *     return '*' . $text . '*';
     * });
     *
     * $qp->writeXML();
     * </code>
     *
     * OUTPUT:
     * <code>
     * <?xml version="1.0"?>
     * <root>
     *   <div>*APPLE*</div>
     *   <div>*ORANGE*</div>
     * </root>
     * </code>
     *
     * @param callable $callback The callable to be called on every element.
     * @param mixed $args        [optional] Zero or more parameters to be passed to the callback.
     * @param null $additional

     * @return DOMQuery The DOMQuery object with the same element(s) selected.
     * @throws Exception
     */
    public function format($callback, $args = null, $additional = null): Query
    {
        if (isset($additional)) {
            $args = func_get_args();
            array_shift($args);
        }

        $getter = function ($qp) {
            return $qp->text();
        };

        $setter = function ($qp, $value) {
            $qp->text($value);
        };

        return $this->forAll($callback, $args, $getter, $setter);
    }

    /**
     * Formats the given attribute of each selected element in the current DOMQuery object.
     *
     * Usage:
     * <code>
     * QueryPath::enable('Noi\QueryPath\FormatExtension');
     * $qp = qp('<?xml version="1.0"?><root><item label="_apple_" total="12,345,678" /><item label="_orange_" total="987,654,321" /></root>');
     *
     * $qp->find('item')
     *     ->formatAttr('label', 'trim', '_')
     *     ->formatAttr('total', 'str_replace[2]', ',', '');
     *
     * $qp->find('item')->formatAttr('label', function ($value) {
     *     return ucfirst(strtolower($value));
     * });
     *
     * $qp->writeXML();
     * </code>
     *
     * OUTPUT:
     * <code>
     * <?xml version="1.0"?>
     * <root>
     *   <item label="Apple" total="12345678"/>
     *   <item label="Orange" total="987654321"/>
     * </root>
     * </code>
     *
     * @param string $attrName   The attribute name.
     * @param callable $callback The callable to be called on every element.
     * @param mixed $args        [optional] Zero or more parameters to be passed to the callback.
     * @param null $additional

     * @return DOMQuery The DOMQuery object with the same element(s) selected.
     * @throws Exception
     */
    public function formatAttr($attrName, $callback, $args = null, $additional = null): Query
    {
        if (isset($additional)) {
            $args = array_slice(func_get_args(), 2);
        }

        $getter = function ($qp) use ($attrName) {
            return $qp->attr($attrName);
        };

        $setter = function ($qp, $value) use ($attrName) {
            return $qp->attr($attrName, $value);
        };

        return $this->forAll($callback, $args, $getter, $setter);
    }

    /**
     * @param $callback
     * @param $args
     * @param $getter
     * @param $setter
     * @return Query
     * @throws Exception
     */
    protected function forAll($callback, $args, $getter, $setter): Query
    {
        [$callback, $pos] = $this->prepareCallback($callback);
        if (!is_callable($callback)) {
            throw new Exception('Callback is not callable.');
        }

        $padded = $this->prepareArgs($args, $pos);
        foreach ($this->qp as $qp) {
            $padded[$pos] = $getter($qp);
            $setter($qp, call_user_func_array($callback, $padded));
        }

        return $this->qp;
    }

    /**
     * @param $callback
     * @return array
     */
    protected function prepareCallback($callback)
    {
        if (is_string($callback)) {
            [$callback, $trail] = $this->splitFunctionName($callback);
            $pos = (int)$trail;
        } elseif (is_array($callback) && isset($callback[2])) {
            $pos = $callback[2];
            $callback = array($callback[0], $callback[1]);
        } else {
            $pos = 0;
        }
        return array($callback, $pos);
    }

    /**
     * @param string $string
     * @return array[]|false|string[]
     */
    protected function splitFunctionName(string $string)
    {
        // 'func_name:2', 'func_name@3', 'func_name[1]', ...
        return preg_split('/[^a-zA-Z0-9_\x7f-\xff][^\d]*|$/', $string, 2);
    }

    /**
     * @param $args
     * @param $pos
     * @return array
     */
    protected function prepareArgs($args, $pos): array
    {
        $padded = array_pad((array) $args, (0 < $pos) ? $pos - 1 : 0, null);
        array_splice($padded, $pos, 0, array(null)); // insert null as a place holder
        return $padded;
    }
}

1			<?php
2
3			namespace QueryPath\Extension;
4
5			use QueryPath\DOMQuery;
6			use QueryPath\Extension;
7			use QueryPath\Query;
8			use QueryPath\Exception;
9
10			/**
11			* A QueryPath extension that adds extra methods for formatting node values.
12			*
13			* This extension provides two methods:
14			*
15			* - format()
16			* - formatAttr()
17			*
18			* Usage:
19			* <code>
20			* <?php
21			* QueryPath::enable('Noi\QueryPath\FormatExtension');
22			* $qp = qp('<?xml version="1.0"?><root><item score="12000">TEST A</item><item score="9876.54">TEST B</item></root>');
23			*
24			* $qp->find('item')->format(function ($text) {
25			* return ucwords(strtolower($text));
26			* });
27			* $qp->find('item')->formatAttr('score', 'number_format', 2);
28			*
29			* $qp->writeXML();
30			* </code>
31			*
32			* OUTPUT:
33			* <code>
34			* <?xml version="1.0"?>
35			* <root>
36			* <item score="12,000.00">Test A</item>
37			* <item score="9,876.54">Test B</item>
38			* </root>
39			* </code>
40			*
41			* @see FormatExtension::format()
42			* @see FormatExtension::formatAttr()
43			*
44			* @author Akihiro Yamanoi <[email protected]>
45			*/
46			class Format implements Extension
47			{
48			protected $qp;
49
50			public function __construct(Query $qp)
51			{
52			$this->qp = $qp;
53			}
54
55			/**
56			* Formats the text content of each selected element in the current DOMQuery object.
57			*
58			* Usage:
59			* <code>
60			* <?php
61			* QueryPath::enable('Noi\QueryPath\FormatExtension');
62			* $qp = qp('<?xml version="1.0"?><root><div>Apple</div><div>Orange</div></root>');
63			*
64			* $qp->find('div')->format('strtoupper');
65			* $qp->find('div')->format(function ($text) {
66			* return '' . $text . '';
67			* });
68			*
69			* $qp->writeXML();
70			* </code>
71			*
72			* OUTPUT:
73			* <code>
74			* <?xml version="1.0"?>
75			* <root>
76			* <div>APPLE</div>
77			* <div>ORANGE</div>
78			* </root>
79			* </code>
80			*
81			* @param callable $callback The callable to be called on every element.
82			* @param mixed $args [optional] Zero or more parameters to be passed to the callback.
83			* @param null $additional
			0 ignored issues – show Documentation Bug introduced 2018-08-04 09:32 UTC by Report Bug Copy Issue Report Are you sure the doc-type for parameter `$additional` is correct as it would always require `null` to be passed? Loading history...
84			* @return DOMQuery The DOMQuery object with the same element(s) selected.
85			* @throws Exception
86			*/
87			public function format($callback, $args = null, $additional = null): Query
88			{
89			if (isset($additional)) {
90			$args = func_get_args();
91			array_shift($args);
92			}
93
94			$getter = function ($qp) {
95			return $qp->text();
96			};
97
98			$setter = function ($qp, $value) {
99			$qp->text($value);
100			};
101
102			return $this->forAll($callback, $args, $getter, $setter);
103			}
104
105			/**
106			* Formats the given attribute of each selected element in the current DOMQuery object.
107			*
108			* Usage:
109			* <code>
110			* QueryPath::enable('Noi\QueryPath\FormatExtension');
111			* $qp = qp('<?xml version="1.0"?><root><item label="_apple_" total="12,345,678" /><item label="_orange_" total="987,654,321" /></root>');
112			*
113			* $qp->find('item')
114			* ->formatAttr('label', 'trim', '_')
115			* ->formatAttr('total', 'str_replace[2]', ',', '');
116			*
117			* $qp->find('item')->formatAttr('label', function ($value) {
118			* return ucfirst(strtolower($value));
119			* });
120			*
121			* $qp->writeXML();
122			* </code>
123			*
124			* OUTPUT:
125			* <code>
126			* <?xml version="1.0"?>
127			* <root>
128			* <item label="Apple" total="12345678"/>
129			* <item label="Orange" total="987654321"/>
130			* </root>
131			* </code>
132			*
133			* @param string $attrName The attribute name.
134			* @param callable $callback The callable to be called on every element.
135			* @param mixed $args [optional] Zero or more parameters to be passed to the callback.
136			* @param null $additional
			0 ignored issues – show Documentation Bug introduced 2018-08-04 09:32 UTC by Report Bug Copy Issue Report Are you sure the doc-type for parameter `$additional` is correct as it would always require `null` to be passed? Loading history...
137			* @return DOMQuery The DOMQuery object with the same element(s) selected.
138			* @throws Exception
139			*/
140			public function formatAttr($attrName, $callback, $args = null, $additional = null): Query
141			{
142			if (isset($additional)) {
143			$args = array_slice(func_get_args(), 2);
144			}
145
146			$getter = function ($qp) use ($attrName) {
147			return $qp->attr($attrName);
148			};
149
150			$setter = function ($qp, $value) use ($attrName) {
151			return $qp->attr($attrName, $value);
152			};
153
154			return $this->forAll($callback, $args, $getter, $setter);
155			}
156
157			/**
158			* @param $callback
159			* @param $args
160			* @param $getter
161			* @param $setter
162			* @return Query
163			* @throws Exception
164			*/
165			protected function forAll($callback, $args, $getter, $setter): Query
166			{
167			[$callback, $pos] = $this->prepareCallback($callback);
168			if (!is_callable($callback)) {
169			throw new Exception('Callback is not callable.');
170			}
171
172			$padded = $this->prepareArgs($args, $pos);
173			foreach ($this->qp as $qp) {
174			$padded[$pos] = $getter($qp);
175			$setter($qp, call_user_func_array($callback, $padded));
176			}
177
178			return $this->qp;
179			}
180
181			/**
182			* @param $callback
183			* @return array
184			*/
185			protected function prepareCallback($callback)
186			{
187			if (is_string($callback)) {
188			[$callback, $trail] = $this->splitFunctionName($callback);
189			$pos = (int)$trail;
190			} elseif (is_array($callback) && isset($callback[2])) {
191			$pos = $callback[2];
192			$callback = array($callback[0], $callback[1]);
193			} else {
194			$pos = 0;
195			}
196			return array($callback, $pos);
197			}
198
199			/**
200			* @param string $string
201			* @return array[]\|false\|string[]
202			*/
203			protected function splitFunctionName(string $string)
204			{
205			// 'func_name:2', 'func_name@3', 'func_name[1]', ...
206			return preg_split('/[^a-zA-Z0-9_\x7f-\xff][^\d]*\|$/', $string, 2);
207			}
208
209			/**
210			* @param $args
211			* @param $pos
212			* @return array
213			*/
214			protected function prepareArgs($args, $pos): array
215			{
216			$padded = array_pad((array) $args, (0 < $pos) ? $pos - 1 : 0, null);
217			array_splice($padded, $pos, 0, array(null)); // insert null as a place holder
218			return $padded;
219			}
220			}

arthurkushman / querypath

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Format::__construct() A

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