Syntax Highlighting Class - Gist@portalZINE

Syntax Highlighting Class.css · 445 B · CSS Raw

1	pre {
2	font-family: 'Courier New', 'Bitstream Vera Sans Mono', 'monospace';
3	font-size: 9pt;
4	border-top: 1px solid #333;
5	border-bottom: 1px solid #333;
6	padding: 0.4em;
7	color: #fff;
8	}
9	pre span.N{ color:#f2c47f; } /* Numbers */
10	pre span.S{ color:#42ff00; } /* Strings */
11	pre span.C{ color:#838383; } /* Comments */
12	pre span.K{ color:#ff0078; } /* Keywords */
13	pre span.V{ color:#70d6ff; } /* Vars */
14	pre span.D{ color:#ff9a5d; } /* Defines */

Syntax Highlighting Class.php · 3.4 KiB · PHP Raw

class SyntaxHighlight { static $tokens = array();// This array will be filled from the regexp-callback public static function process($s) { $s = htmlspecialchars($s); // Workaround for escaped backslashes $s = str_replace('\\\\','\\\\<e>', $s); $regexp = array( // Punctuations '/([\-\!\%\^\*\+\|\~\=\`\{\}\[\]\:\"\'<>\?\,\.\/]+)/' => '$1', // Numbers (also look for Hex) '/(?<!\w)( (0x|\#)[\da-f]+| \d+| \d+(px|em|cm|mm|rem|s|\%) )(?!\w)/ix' => '$1', // Make the bold assumption that an // all uppercase word has a special meaning '/(?<!\w|>|\#)( [A-Z_0-9]{2,} )(?!\w)/x' => '$1', // Keywords '/(?<!\w|\$|\%|\@|>)( and|or|xor|for|do|while|foreach|as|return|die|exit|if|then|else| elseif|new|delete|try|throw|catch|finally|class|function|string| array|object|resource|var|bool|boolean|int|integer|float|double| real|string|array|global|const|static|public|private|protected| published|extends|switch|true|false|null|void|this|self|struct| char|signed|unsigned|short|long )(?!\w|=")/ix' => '$1', // PHP/Perl-Style Vars: $var, %var, @var '/(?<!\w)( (\$|\%|\@)(\->|\w)+ )(?!\w)/ix' => '$1' ); $s = preg_replace_callback( '/( \/\*.*?\*\/| \/\/.*?\n| \#.[^a-fA-F0-9]+?\n| \<\!\-\-[\s\S]+\-\-\>| (?<!\\\)&quot;.*?(?<!\\\)&quot;| (?<!\\\)\'(.*?)(?<!\\\)\' )/isx' , array('SyntaxHighlight', 'replaceId'),$s); $s = preg_replace(array_keys($regexp), array_values($regexp), $s); // Paste the comments and strings back in again $s = str_replace(array_keys(SyntaxHighlight::$tokens), array_values(SyntaxHighlight::$tokens), $s); // Delete the "Escaped Backslash Workaround Token" (TM) // and replace tabs with four spaces. $s = str_replace(array('<e>', "\t"), array('', ' '), $s); return '<pre>'.$s.'</pre>' ; } // Regexp-Callback to replace every comment or string with a uniqid and save // the matched text in an array // This way, strings and comments will be stripped out and wont be processed // by the other expressions searching for keywords etc. static function replaceId($match) { $id = "##r" . uniqid() . "##"; // String or Comment? if(substr($match[1], 0, 2) == '//' || substr($match[1], 0, 2) == '/*' || substr($match[1], 0, 2) == '##' || substr($match[1], 0, 7) == '<!--') { SyntaxHighlight::$tokens[$id] = '' . $match[1] . ''; } else { SyntaxHighlight::$tokens[$id] = '' . $match[1] . ''; } return $id; } } echo SyntaxHighlight::process( $your_code );

1	class SyntaxHighlight {
2
3	static $tokens = array();// This array will be filled from the regexp-callback
4	public static function process($s) {
5	$s = htmlspecialchars($s);
6	// Workaround for escaped backslashes
7	$s = str_replace('\\\\','\\\\<e>', $s);
8	$regexp = array(
9	// Punctuations
10	'/([\-\!\%\^\*\+\\|\~\=\`\{\}\[\]\:\"\'<>\?\,\.\/]+)/'
11	=> '<span class="P">$1</span>',
12	// Numbers (also look for Hex)
13	'/(?<!\w)(
14	(0x\|\#)[\da-f]+\|
15	\d+\|
16	\d+(px\|em\|cm\|mm\|rem\|s\|\%)
17	)(?!\w)/ix'
18	=> '<span class="N">$1</span>',
19	// Make the bold assumption that an
20	// all uppercase word has a special meaning
21	'/(?<!\w\|>\|\#)(
22	[A-Z_0-9]{2,}
23	)(?!\w)/x'
24	=> '<span class="D">$1</span>',
25	// Keywords
26	'/(?<!\w\|\$\|\%\|\@\|>)(
27	and\|or\|xor\|for\|do\|while\|foreach\|as\|return\|die\|exit\|if\|then\|else\|
28	elseif\|new\|delete\|try\|throw\|catch\|finally\|class\|function\|string\|
29	array\|object\|resource\|var\|bool\|boolean\|int\|integer\|float\|double\|
30	real\|string\|array\|global\|const\|static\|public\|private\|protected\|
31	published\|extends\|switch\|true\|false\|null\|void\|this\|self\|struct\|
32	char\|signed\|unsigned\|short\|long
33	)(?!\w\|=")/ix'
34	=> '<span class="K">$1</span>',
35	// PHP/Perl-Style Vars: $var, %var, @var
36	'/(?<!\w)(
37	(\$\|\%\|\@)(\->\|\w)+
38	)(?!\w)/ix'
39	=> '<span class="V">$1</span>'
40	);
41
42	$s = preg_replace_callback( '/(
43	\/\.?\*\/\|
44	\/\/.*?\n\|
45	\#.[^a-fA-F0-9]+?\n\|
46	\<\!\-\-[\s\S]+\-\-\>\|
47	(?<!\\\)&quot;.*?(?<!\\\)&quot;\|
48	(?<!\\\)\'(.*?)(?<!\\\)\'
49	)/isx' , array('SyntaxHighlight', 'replaceId'),$s);
50
51	$s = preg_replace(array_keys($regexp), array_values($regexp), $s);
52	// Paste the comments and strings back in again
53	$s = str_replace(array_keys(SyntaxHighlight::$tokens), array_values(SyntaxHighlight::$tokens), $s);
54	// Delete the "Escaped Backslash Workaround Token" (TM)
55	// and replace tabs with four spaces.
56	$s = str_replace(array('<e>', "\t"), array('', ' '), $s);
57	return '<pre>'.$s.'</pre>' ;
58	}
59	// Regexp-Callback to replace every comment or string with a uniqid and save
60	// the matched text in an array
61	// This way, strings and comments will be stripped out and wont be processed
62	// by the other expressions searching for keywords etc.
63	static function replaceId($match) {
64	$id = "##r" . uniqid() . "##";
65
66	// String or Comment?
67	if(substr($match[1], 0, 2) == '//' \|\| substr($match[1], 0, 2) == '/*' \|\| substr($match[1], 0, 2) == '##' \|\| substr($match[1], 0, 7) == '<!--') {
68	SyntaxHighlight::$tokens[$id] = '<span class="C">' . $match[1] . '</span>';
69	} else {
70	SyntaxHighlight::$tokens[$id] = '<span class="S">' . $match[1] . '</span>';
71	}
72
73	return $id;
74	}
75	}
76
77	echo SyntaxHighlight::process( $your_code );