Selecta::unsanitise_attribute_dots() - Code Metrics - Inspection of "Performance" - drewm/selecta - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0c8e25...9b0f13 )

by Drew

created 2016-06-30 16:51 UTC

Selecta::unsanitise_attribute_dots() A

↳ Parent: Selecta

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

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

<?php

namespace DrewM\Selecta;
 
class Selecta
{
	public static $single_tags    = array('img', 'br', 'hr', 'input');
	public static $pseudo_classes = array('disabled', 'checked');
	public static $meta_map       = array('.'=>'class', '#'=>'id');

	public static function build($selector, $contents='', $open_tags=true, $close_tags=true)
	{
		$parts = explode(' ', $selector);
		if (count($parts)) {
			$parts = array_reverse($parts);
			foreach($parts as $part) {
				$contents = self::tagify($part, $contents, $open_tags, $close_tags);
			}
		}
		return $contents;
	}

	public static function wrap($selector, $contents='')
	{
		return self::build($selector, $contents, true, true);
	}

	public static function open($selector)
	{
		return self::build($selector, '', true, false);
	}

	public static function close($selector)
	{
		return self::build($selector, '', false, true);
	}

	private static function tagify($selector='', $contents='', $open_tags=true, $close_tags=true)
	{
		$attrs = array();

		// replace dots within attribute selectors
		$selector = self::sanitise_attribute_dots($selector);

		$metas   = '\.\#\[\:';
		$pattern = '/(['.$metas.'])([^'.$metas.']*)?/';
		preg_match_all($pattern, $selector, $matches, PREG_SET_ORDER);

		if (count($matches)) {
			foreach($matches as $match) {
				$attrs = self::build_attributes($match[1], $match[2], $attrs);
			}

			// reduce selector to just tag name
			$parts    = preg_split('/['.$metas.']/', $selector);
			$selector = $parts[0];
		}

		return self::build_tag($selector, $attrs, $contents, $open_tags, $close_tags);
	}

	private static function build_attributes($meta_char, $value, $attrs)
	{
		$key = false;
		if (isset(self::$meta_map[$meta_char])) {
			$key = self::$meta_map[$meta_char];
		}else{
			switch ($meta_char) {
				
				// Attribute selectors
				case '[':
					$value = rtrim($value, ']');

					if (strpos($value, '=')) {
						$parts = explode('=', $value, 2);
						$key   = $parts[0];
						$value = self::unsanitise_attribute_dots($parts[1]);
					}else{
						$key   = $value;
						$value = false;
					}
					break;

				// Pseudo-class selectors
				case ':':
					list($key, $value) = self::build_pseudo_class_attribute($value);
					break;
			}
		}

		if ($key){
			if (isset($attrs[$key])) {
				$attrs[$key] .= ' '.$value;
			}else{
				$attrs[$key] = $value;
			}
		}

		return $attrs;
	}

	private static function build_pseudo_class_attribute($pclass='')
	{
		if (in_array($pclass, self::$pseudo_classes)) {
			return array($pclass, false);
		}

		return array(false, false);
	}

	private static function build_tag($name, $attributes=array(), $contents='', $open_tag=true, $close_tag=true)
	{
		$tag = '';

		if ($open_tag) {
			$tag = self::open_tag($name, $attributes);
		}
		
		if (in_array($name, self::$single_tags)) { 
			return $contents.$tag;
		}

		$tag .= $contents;

		if ($close_tag) {
			$tag .= self::close_tag($name);
		}

		return $tag;
	}

	private static function open_tag($name, $attributes=array())
	{
		$tag = '<'.self::html($name);
		if (count($attributes)) {
			// do attributes
			$attpairs = array();
			foreach($attributes as $key=>$val) {
				if ($val!='') {
					$attpairs[] = self::html($key).'="'.self::html($val, true).'"';
				}else{
					$attpairs[] = self::html($key);
				}
			}
			$tag .= ' '.implode(' ', $attpairs);
		}
		$tag .= '>';

		return $tag;
	}

	private static function close_tag($name)
	{
		return  '</'.self::html($name).'>';		
	}

	private static function html($s, $quotes=false, $double_encode=false)
	{
		if ($quotes) {
	        $q = ENT_QUOTES;
	    }else{
	        $q = ENT_NOQUOTES;
	    }
	    
		if ($s || (is_string($s) && strlen($s))) return htmlspecialchars($s, $q, 'UTF-8', $double_encode);
	    return '';
	}

	private static function sanitise_attribute_dots($selector)
	{
		if (strpos($selector, '[')!==false) {
			preg_match_all('/\[.*?\]/', $selector, $matches, PREG_SET_ORDER);
			if (count($matches)) {
				foreach($matches as $match) {
					$exact    = $match[0];
					$new      = str_replace('.', '__DOT__', $exact);
					$selector = str_replace($exact, $new, $selector);
				}
			}
		}
		return $selector;
	}

	private static function unsanitise_attribute_dots($string)
	{
		return str_replace('__DOT__', '.', $string);
	}

} 

1			<?php
2
3			namespace DrewM\Selecta;
4
5			class Selecta
6			{
7			public static $single_tags = array('img', 'br', 'hr', 'input');
8			public static $pseudo_classes = array('disabled', 'checked');
9			public static $meta_map = array('.'=>'class', '#'=>'id');
10
11			public static function build($selector, $contents='', $open_tags=true, $close_tags=true)
12			{
13			$parts = explode(' ', $selector);
14			if (count($parts)) {
15			$parts = array_reverse($parts);
16			foreach($parts as $part) {
17			$contents = self::tagify($part, $contents, $open_tags, $close_tags);
18			}
19			}
20			return $contents;
21			}
22
23			public static function wrap($selector, $contents='')
24			{
25			return self::build($selector, $contents, true, true);
26			}
27
28			public static function open($selector)
29			{
30			return self::build($selector, '', true, false);
31			}
32
33			public static function close($selector)
34			{
35			return self::build($selector, '', false, true);
36			}
37
38			private static function tagify($selector='', $contents='', $open_tags=true, $close_tags=true)
39			{
40			$attrs = array();
41
42			// replace dots within attribute selectors
43			$selector = self::sanitise_attribute_dots($selector);
44
45			$metas = '\.\#\[\:';
46			$pattern = '/(['.$metas.'])([^'.$metas.']*)?/';
47			preg_match_all($pattern, $selector, $matches, PREG_SET_ORDER);
48
49			if (count($matches)) {
50			foreach($matches as $match) {
51			$attrs = self::build_attributes($match[1], $match[2], $attrs);
52			}
53
54			// reduce selector to just tag name
55			$parts = preg_split('/['.$metas.']/', $selector);
56			$selector = $parts[0];
57			}
58
59			return self::build_tag($selector, $attrs, $contents, $open_tags, $close_tags);
60			}
61
62			private static function build_attributes($meta_char, $value, $attrs)
63			{
64			$key = false;
65			if (isset(self::$meta_map[$meta_char])) {
66			$key = self::$meta_map[$meta_char];
67			}else{
68			switch ($meta_char) {
69
70			// Attribute selectors
71			case '[':
72			$value = rtrim($value, ']');
73
74			if (strpos($value, '=')) {
75			$parts = explode('=', $value, 2);
76			$key = $parts[0];
77			$value = self::unsanitise_attribute_dots($parts[1]);
78			}else{
79			$key = $value;
80			$value = false;
81			}
82			break;
83
84			// Pseudo-class selectors
85			case ':':
86			list($key, $value) = self::build_pseudo_class_attribute($value);
87			break;
88			}
89			}
90
91			if ($key){
92			if (isset($attrs[$key])) {
93			$attrs[$key] .= ' '.$value;
94			}else{
95			$attrs[$key] = $value;
96			}
97			}
98
99			return $attrs;
100			}
101
102			private static function build_pseudo_class_attribute($pclass='')
103			{
104			if (in_array($pclass, self::$pseudo_classes)) {
105			return array($pclass, false);
106			}
107
108			return array(false, false);
109			}
110
111			private static function build_tag($name, $attributes=array(), $contents='', $open_tag=true, $close_tag=true)
112			{
113			$tag = '';
114
115			if ($open_tag) {
116			$tag = self::open_tag($name, $attributes);
117			}
118
119			if (in_array($name, self::$single_tags)) {
120			return $contents.$tag;
121			}
122
123			$tag .= $contents;
124
125			if ($close_tag) {
126			$tag .= self::close_tag($name);
127			}
128
129			return $tag;
130			}
131
132			private static function open_tag($name, $attributes=array())
133			{
134			$tag = '<'.self::html($name);
135			if (count($attributes)) {
136			// do attributes
137			$attpairs = array();
138			foreach($attributes as $key=>$val) {
139			if ($val!='') {
140			$attpairs[] = self::html($key).'="'.self::html($val, true).'"';
141			}else{
142			$attpairs[] = self::html($key);
143			}
144			}
145			$tag .= ' '.implode(' ', $attpairs);
146			}
147			$tag .= '>';
148
149			return $tag;
150			}
151
152			private static function close_tag($name)
153			{
154			return '</'.self::html($name).'>';
155			}
156
157			private static function html($s, $quotes=false, $double_encode=false)
158			{
159			if ($quotes) {
160			$q = ENT_QUOTES;
161			}else{
162			$q = ENT_NOQUOTES;
163			}
164
165			if ($s \|\| (is_string($s) && strlen($s))) return htmlspecialchars($s, $q, 'UTF-8', $double_encode);
166			return '';
167			}
168
169			private static function sanitise_attribute_dots($selector)
170			{
171			if (strpos($selector, '[')!==false) {
172			preg_match_all('/\[.*?\]/', $selector, $matches, PREG_SET_ORDER);
173			if (count($matches)) {
174			foreach($matches as $match) {
175			$exact = $match[0];
176			$new = str_replace('.', '__DOT__', $exact);
177			$selector = str_replace($exact, $new, $selector);
178			}
179			}
180			}
181			return $selector;
182			}
183
184			private static function unsanitise_attribute_dots($string)
185			{
186			return str_replace('__DOT__', '.', $string);
187			}
188
189			}

drewm / selecta

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Selecta::unsanitise_attribute_dots() A

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