string-functions.php ➔ quote_property() - Code Metrics - Inspection of "New: added quote_index()" - ganbarodigital/php-the-missing-bits - Measure and Improve Code Quality continuously with Scrutinizer

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by Stuart

created 2016-07-12 17:09 UTC

string-functions.php ➔ quote_property() A

↳ Parent: Project

Complexity

Conditions	3
Paths	3

Size

Total Lines	22
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	6
c	1
b	0
f	0
nc	3
nop	1
dl	0
loc	22
rs	9.2

<?php

/**
 * Copyright (c) 2016-present Ganbaro Digital Ltd
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the names of the copyright holders nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @category  Libraries
 * @package   MissingBits/StringFunctions
 * @author    Stuart Herbert <[email protected]>
 * @copyright 2016-present Ganbaro Digital Ltd www.ganbarodigital.com
 * @license   http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @link      http://ganbarodigital.github.io/php-the-missing-bits
 */

/**
* surround an array key with single quotes if appropriate
*
* If $key isn't a string, no quotes are added.
*
* @param  mixed $key
*         the item to (possibly) quote
* @return mixed
*         the unmodified $key if it is not a string
*         the quoted $key if it is a string
*/
function quote_index($key) {
    if (!is_string($key)) {
        return $key;
    }

    return "'$key'";
}

/**
 * surround a string with braces, if it would need braces in order to be used
 * as a PHP property name in eval()
 *
 * @param  string $propertyName
 *         the property name to add braces to (if required)
 * @return string
 */
function quote_property($propertyName) {
    // robustness!
    if (!is_stringy($propertyName)) {
        throw new InvalidArgumentException('$propertyName is not a valid class or object property name');
    }

    // would the string need braces if we used it in eval()?
    //
    // the rules are:
    // - first character must be an ASCII letter or an underscore
    // - the remaining characters can only be ASCII letters, numbers,
    //   or an underscore
    //
    // any string that doesn't satisfy those rules needs braces adding
    if (!preg_match("/[A-Za-z_][A-Za-z0-9_]{" . (strlen($propertyName) - 1) . "}/", $propertyName)) {
        // yes it would
        return '{' . $propertyName . '}';
    }

    // if we get here, then no action is needed
    return $propertyName;
}

if (!function_exists("vnsprintf")) {

/**
 * vsprintf()-compatible function, with support for named parameters in the
 * format string
 *
 * Internally, we convert named parameters into positional parameters. This
 * means that your format string:
 *
 * - must be a pure vsprintf()-compatible format string, or
 * - must use only named parameters, or
 * - must use a mix of named parameters and positional parameters
 *
 * You CANNOT mix named parameters and non-positional parameters.
 *
 * @param  string $format
 *         the format string to use
 * @param  array args
 *         the list of parameters to use
 * @return string
 *         the result of expanding $format
 */
function vnsprintf($format, $args)
{
    // we need to find all of the named parameters to expand
    $regex = "|(?<!%)(?:%)([^0-9].+)(?:\\\$)|U";

    $matches = [];
    $matchCount = preg_match_all($regex, $format, $matches, PREG_OFFSET_CAPTURE);
    if ($matchCount === 0) {
        // nothing to do
        return vsprintf($format, $args);
    }

    // if we get here, then we have some matches to expand
    // we're going to add them to the end of this array
    $messageData = $args;

    // this will keep track of where we've added the data
    $nextData = count($messageData);
    $paramKeys = array_fill_keys(array_keys($args), -1);

    // this will keep track of how we've shrunk the format string
    $formatChange = 0;

    // transform the named parameters into offset parameters
    foreach ($matches[1] as $match) {
        // what is the named parameter?
        $paramName = $match[0];

        // make sure the named parameter exists in our original data
        if (!isset($paramKeys[$paramName])) {
            throw new InvalidArgumentException("vnsprintf: named format-string parameter " . $paramName . " is not provided in \$args array");
        }
        // have we already assigned it a place in $messageData?
        // in case a named parameter appears multiple times in the format string
        if ($paramKeys[$paramName] === -1) {
            // no - it needs a home
            $messageData[$nextData] =& $args[$paramName];
            $paramKeys[$paramName] = $nextData;
            $nextData++;
        }
        // convert the named parameter in the format string into a positional
        // parameter into $messageData
        $paramOffset = $paramKeys[$paramName] + 1;
        $format = substr_replace($format, $paramOffset, $formatChange + $match[1], strlen($paramName));


        // how much did we shrink / grow the format string by?
        $formatChange = $formatChange - strlen($paramName) + strlen($paramOffset);
    }

    // all done
    return vsprintf($format, $messageData);
}

}


1			<?php
2
3			/**
4			* Copyright (c) 2016-present Ganbaro Digital Ltd
5			* All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			*
11			* * Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			*
14			* * Redistributions in binary form must reproduce the above copyright
15			* notice, this list of conditions and the following disclaimer in
16			* the documentation and/or other materials provided with the
17			* distribution.
18			*
19			* * Neither the names of the copyright holders nor the names of his
20			* contributors may be used to endorse or promote products derived
21			* from this software without specific prior written permission.
22			*
23			* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24			* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25			* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26			* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27			* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
29			* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30			* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
31			* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33			* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34			* POSSIBILITY OF SUCH DAMAGE.
35			*
36			* @category Libraries
37			* @package MissingBits/StringFunctions
38			* @author Stuart Herbert <[email protected]>
39			* @copyright 2016-present Ganbaro Digital Ltd www.ganbarodigital.com
40			* @license http://www.opensource.org/licenses/bsd-license.php BSD License
41			* @link http://ganbarodigital.github.io/php-the-missing-bits
42			*/
43
44			/**
45			* surround an array key with single quotes if appropriate
46			*
47			* If $key isn't a string, no quotes are added.
48			*
49			* @param mixed $key
50			* the item to (possibly) quote
51			* @return mixed
52			* the unmodified $key if it is not a string
53			* the quoted $key if it is a string
54			*/
55			function quote_index($key) {
56			if (!is_string($key)) {
57			return $key;
58			}
59
60			return "'$key'";
61			}
62
63			/**
64			* surround a string with braces, if it would need braces in order to be used
65			* as a PHP property name in eval()
66			*
67			* @param string $propertyName
68			* the property name to add braces to (if required)
69			* @return string
70			*/
71			function quote_property($propertyName) {
72			// robustness!
73			if (!is_stringy($propertyName)) {
74			throw new InvalidArgumentException('$propertyName is not a valid class or object property name');
75			}
76
77			// would the string need braces if we used it in eval()?
78			//
79			// the rules are:
80			// - first character must be an ASCII letter or an underscore
81			// - the remaining characters can only be ASCII letters, numbers,
82			// or an underscore
83			//
84			// any string that doesn't satisfy those rules needs braces adding
85			if (!preg_match("/[A-Za-z_][A-Za-z0-9_]{" . (strlen($propertyName) - 1) . "}/", $propertyName)) {
86			// yes it would
87			return '{' . $propertyName . '}';
88			}
89
90			// if we get here, then no action is needed
91			return $propertyName;
92			}
93
94			if (!function_exists("vnsprintf")) {
95
96			/**
97			* vsprintf()-compatible function, with support for named parameters in the
98			* format string
99			*
100			* Internally, we convert named parameters into positional parameters. This
101			* means that your format string:
102			*
103			* - must be a pure vsprintf()-compatible format string, or
104			* - must use only named parameters, or
105			* - must use a mix of named parameters and positional parameters
106			*
107			* You CANNOT mix named parameters and non-positional parameters.
108			*
109			* @param string $format
110			* the format string to use
111			* @param array args
112			* the list of parameters to use
113			* @return string
114			* the result of expanding $format
115			*/
116			function vnsprintf($format, $args)
117			{
118			// we need to find all of the named parameters to expand
119			$regex = "\|(?<!%)(?:%)([^0-9].+)(?:\\\$)\|U";
120
121			$matches = [];
122			$matchCount = preg_match_all($regex, $format, $matches, PREG_OFFSET_CAPTURE);
123			if ($matchCount === 0) {
124			// nothing to do
125			return vsprintf($format, $args);
126			}
127
128			// if we get here, then we have some matches to expand
129			// we're going to add them to the end of this array
130			$messageData = $args;
131
132			// this will keep track of where we've added the data
133			$nextData = count($messageData);
134			$paramKeys = array_fill_keys(array_keys($args), -1);
135
136			// this will keep track of how we've shrunk the format string
137			$formatChange = 0;
138
139			// transform the named parameters into offset parameters
140			foreach ($matches[1] as $match) {
141			// what is the named parameter?
142			$paramName = $match[0];
143
144			// make sure the named parameter exists in our original data
145			if (!isset($paramKeys[$paramName])) {
146			throw new InvalidArgumentException("vnsprintf: named format-string parameter " . $paramName . " is not provided in \$args array");
147			}
148			// have we already assigned it a place in $messageData?
149			// in case a named parameter appears multiple times in the format string
150			if ($paramKeys[$paramName] === -1) {
151			// no - it needs a home
152			$messageData[$nextData] =& $args[$paramName];
153			$paramKeys[$paramName] = $nextData;
154			$nextData++;
155			}
156			// convert the named parameter in the format string into a positional
157			// parameter into $messageData
158			$paramOffset = $paramKeys[$paramName] + 1;
159			$format = substr_replace($format, $paramOffset, $formatChange + $match[1], strlen($paramName));
			0 ignored issues – show Coding Style introduced 2016-07-12 17:11 UTC by Report Bug Copy Issue Report Consider using a different name than the parameter `$format`. This often makes code more readable. Loading history...
160
161			// how much did we shrink / grow the format string by?
162			$formatChange = $formatChange - strlen($paramName) + strlen($paramOffset);
163			}
164
165			// all done
166			return vsprintf($format, $messageData);
167			}
168
169			}
170

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