Upadate to Str.php

src/LaravelBook/Laravel4Powerpack/Str.php

@@ -552,4 +552,44 @@ public static function snake($value, $delimiter = '_')
 
 		return ctype_lower($value) ? $value : strtolower(preg_replace('/(.)([A-Z])/', $replace, $value));
 	}
+
+	function highlight_code($str)
+	{
+		// The highlight string function encodes and highlights
+		// brackets so we need them to start raw
+		$str = str_replace(array('&lt;', '&gt;'), array('<', '>'), $str);
+
+		// Replace any existing PHP tags to temporary markers so they don't accidentally
+		// break the string out of PHP, and thus, thwart the highlighting.
+
+		$str = str_replace(array('<?', '?>', '<%', '%>', '\\', '</script>'),
+							array('phptagopen', 'phptagclose', 'asptagopen', 'asptagclose', 'backslashtmp', 'scriptclose'), $str);
+
+		// The highlight_string function requires that the text be surrounded
+		// by PHP tags, which we will remove later
+		$str = '<?php '.$str.' ?>'; // <?
+
+		// All the magic happens here, baby!
+		$str = highlight_string($str, TRUE);
+
+		// Prior to PHP 5, the highligh function used icky <font> tags
+		// so we'll replace them with <span> tags.
+
+		if (abs(PHP_VERSION) < 5)
+		{
+			$str = str_replace(array('<font ', '</font>'), array('<span ', '</span>'), $str);
+			$str = preg_replace('#color="(.*?)"#', 'style="color: \\1"', $str);
+		}
+
+		// Remove our artificially added PHP, and the syntax highlighting that came with it
+		$str = preg_replace('/<span style="color: #([A-Z0-9]+)">&lt;\?php(&nbsp;| )/i', '<span style="color: #$1">', $str);
+		$str = preg_replace('/(<span style="color: #[A-Z0-9]+">.*?)\?&gt;<\/span>\n<\/span>\n<\/code>/is', "$1</span>\n</span>\n</code>", $str);
+		$str = preg_replace('/<span style="color: #[A-Z0-9]+"\><\/span>/i', '', $str);
+
+		// Replace our markers back to PHP tags.
+		$str = str_replace(array('phptagopen', 'phptagclose', 'asptagopen', 'asptagclose', 'backslashtmp', 'scriptclose'),
+							array('&lt;?', '?&gt;', '&lt;%', '%&gt;', '\\', '&lt;/script&gt;'), $str);
+
+		return $str;
+	}
 }