michelf / php-markdown

Michelf/Markdown.php

Spacing +80 added lines, -80 removed lines

@@ -35,7 +35,7 @@ 
 
 		// Try to take parser from the static parser list
 		static $parser_list;
-		$parser =& $parser_list[$parser_class];
+		$parser = & $parser_list[$parser_class];
 
 		// Create the parser it not already set
 		if (!$parser) {
@@ -159,14 +159,14 @@ 
 		$this->prepareItalicsAndBold();
 
 		$this->nested_brackets_re =
-			str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
+			str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth) .
 			str_repeat('\])*', $this->nested_brackets_depth);
 
 		$this->nested_url_parenthesis_re =
-			str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth).
+			str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth) .
 			str_repeat('(?>\)))*', $this->nested_url_parenthesis_depth);
 
-		$this->escape_chars_re = '['.preg_quote($this->escape_chars).']';
+		$this->escape_chars_re = '[' . preg_quote($this->escape_chars) . ']';
 
 		// Sort document, block, and span gamut in ascendent priority order.
 		asort($this->document_gamut);
@@ -285,7 +285,7 @@ 
 
 		// Link defs are in the form: ^[id]: url "optional title"
 		$text = preg_replace_callback('{
-							^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?:	# id = $1
+							^[ ]{0,'.$less_than_tab . '}\[(.+)\][ ]?:	# id = $1
 							  [ ]*
 							  \n?				# maybe *one* newline
 							  [ ]*
@@ -321,7 +321,7 @@ 
 		$link_id = strtolower($matches[1]);
 		$url = $matches[2] == '' ? $matches[3] : $matches[2];
 		$this->urls[$link_id] = $url;
-		$this->titles[$link_id] =& $matches[4];
+		$this->titles[$link_id] = & $matches[4];
 		return ''; // String that will replace the block
 	}
 
@@ -353,9 +353,9 @@ 
 		 * *  List "b" is made of tags which are always block-level;
 		 */
 		$block_tags_a_re = 'ins|del';
-		$block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'.
-						   'script|noscript|style|form|fieldset|iframe|math|svg|'.
-						   'article|section|nav|aside|hgroup|header|footer|'.
+		$block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|' .
+						   'script|noscript|style|form|fieldset|iframe|math|svg|' .
+						   'article|section|nav|aside|hgroup|header|footer|' .
 						   'figure|details|summary';
 
 		// Regular expression for the content of a block tag.
@@ -380,12 +380,12 @@ 
 				  [^<]+			# content without tag
 				|
 				  <\2			# nested opening tag
-					'.$attr.'	# attributes
+					'.$attr . '	# attributes
 					(?>
 					  />
 					|
-					  >', $nested_tags_level).	// end of opening tag
-					  '.*?'.					// last level nested tag content
+					  >', $nested_tags_level) . // end of opening tag
+					  '.*?' . // last level nested tag content
 			str_repeat('
 					  </\2\s*>	# closing nested tag
 					)
@@ -421,20 +421,20 @@ 
 			  # Match from `\n<tag>` to `</tag>\n`, handling nested tags
 			  # in between.
 
-						[ ]{0,'.$less_than_tab.'}
-						<('.$block_tags_b_re.')# start tag = $2
-						'.$attr.'>			# attributes followed by > and \n
-						'.$content.'		# content, support nesting
+						[ ]{0,'.$less_than_tab . '}
+						<('.$block_tags_b_re . ')# start tag = $2
+						'.$attr . '>			# attributes followed by > and \n
+						'.$content . '		# content, support nesting
 						</\2>				# the matching end tag
 						[ ]*				# trailing spaces/tabs
 						(?=\n+|\Z)	# followed by a newline or end of document
 
 			| # Special version for tags of group a.
 
-						[ ]{0,'.$less_than_tab.'}
-						<('.$block_tags_a_re.')# start tag = $3
-						'.$attr.'>[ ]*\n	# attributes followed by >
-						'.$content2.'		# content, support nesting
+						[ ]{0,'.$less_than_tab . '}
+						<('.$block_tags_a_re . ')# start tag = $3
+						'.$attr . '>[ ]*\n	# attributes followed by >
+						'.$content2 . '		# content, support nesting
 						</\3>				# the matching end tag
 						[ ]*				# trailing spaces/tabs
 						(?=\n+|\Z)	# followed by a newline or end of document
@@ -442,16 +442,16 @@ 
 			| # Special case just for <hr />. It was easier to make a special
 			  # case than to make the other regex more complicated.
 
-						[ ]{0,'.$less_than_tab.'}
+						[ ]{0,'.$less_than_tab . '}
 						<(hr)				# start tag = $2
-						'.$attr.'			# attributes
+						'.$attr . '			# attributes
 						/?>					# the matching end tag
 						[ ]*
 						(?=\n{2,}|\Z)		# followed by a blank line or end of document
 
 			| # Special case for standalone HTML comments:
 
-					[ ]{0,'.$less_than_tab.'}
+					[ ]{0,'.$less_than_tab . '}
 					(?s:
 						<!-- .*? -->
 					)
@@ -460,7 +460,7 @@ 
 
 			| # PHP and ASP-style processor instructions (<? and <%)
 
-					[ ]{0,'.$less_than_tab.'}
+					[ ]{0,'.$less_than_tab . '}
 					(?s:
 						<([?%])			# $2
 						.*?
@@ -591,7 +591,7 @@ 
 				[ ]*		# Tailing spaces
 				$			# End of line.
 			}mx',
-			"\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n",
+			"\n" . $this->hashBlock("<hr$this->empty_element_suffix") . "\n",
 			$text
 		);
 	}
@@ -670,7 +670,7 @@ 
 		$text = preg_replace_callback('{
 			(					# wrap whole match in $1
 			  \[
-				('.$this->nested_brackets_re.')	# link text = $2
+				('.$this->nested_brackets_re . ')	# link text = $2
 			  \]
 
 			  [ ]?				# one optional space
@@ -687,14 +687,14 @@ 
 		$text = preg_replace_callback('{
 			(				# wrap whole match in $1
 			  \[
-				('.$this->nested_brackets_re.')	# link text = $2
+				('.$this->nested_brackets_re . ')	# link text = $2
 			  \]
 			  \(			# literal paren
 				[ \n]*
 				(?:
 					<(.+?)>	# href = $3
 				|
-					('.$this->nested_url_parenthesis_re.')	# href = $4
+					('.$this->nested_url_parenthesis_re . ')	# href = $4
 				)
 				[ \n]*
 				(			# $5
@@ -730,9 +730,9 @@ 
 	 * @return string
 	 */
 	protected function _doAnchors_reference_callback($matches) {
-		$whole_match =  $matches[1];
-		$link_text   =  $matches[2];
-		$link_id     =& $matches[3];
+		$whole_match = $matches[1];
+		$link_text   = $matches[2];
+		$link_id     = & $matches[3];
 
 		if ($link_id == "") {
 			// for shortcut links like [this][] or [this].
@@ -748,10 +748,10 @@ 
 			$url = $this->encodeURLAttribute($url);
 
 			$result = "<a href=\"$url\"";
-			if ( isset( $this->titles[$link_id] ) ) {
+			if (isset($this->titles[$link_id])) {
 				$title = $this->titles[$link_id];
 				$title = $this->encodeAttribute($title);
-				$result .=  " title=\"$title\"";
+				$result .= " title=\"$title\"";
 			}
 
 			$result .= $this->build_class_attributes("a");
@@ -770,9 +770,9 @@ 
 	 * @return string
 	 */
 	protected function _doAnchors_inline_callback($matches) {
-		$link_text		=  $this->runSpanGamut($matches[2]);
-		$url			=  $matches[3] === '' ? $matches[4] : $matches[3];
-		$title			=& $matches[7];
+		$link_text = $this->runSpanGamut($matches[2]);
+		$url = $matches[3] === '' ? $matches[4] : $matches[3];
+		$title = & $matches[7];
 
 		// If the URL was of the form <s p a c e s> it got caught by the HTML
 		// tag parser and hashed. Need to reverse the process before using
@@ -786,7 +786,7 @@ 
 		$result = "<a href=\"$url\"";
 		if (isset($title)) {
 			$title = $this->encodeAttribute($title);
-			$result .=  " title=\"$title\"";
+			$result .= " title=\"$title\"";
 		}
 
 		$result .= $this->build_class_attributes("a");
@@ -806,7 +806,7 @@ 
 		$text = preg_replace_callback('{
 			(				# wrap whole match in $1
 			  !\[
-				('.$this->nested_brackets_re.')		# alt text = $2
+				('.$this->nested_brackets_re . ')		# alt text = $2
 			  \]
 
 			  [ ]?				# one optional space
@@ -825,7 +825,7 @@ 
 		$text = preg_replace_callback('{
 			(				# wrap whole match in $1
 			  !\[
-				('.$this->nested_brackets_re.')		# alt text = $2
+				('.$this->nested_brackets_re . ')		# alt text = $2
 			  \]
 			  \s?			# One optional whitespace character
 			  \(			# literal paren
@@ -833,7 +833,7 @@ 
 				(?:
 					<(\S*)>	# src url = $3
 				|
-					('.$this->nested_url_parenthesis_re.')	# src url = $4
+					('.$this->nested_url_parenthesis_re . ')	# src url = $4
 				)
 				[ \n]*
 				(			# $5
@@ -871,7 +871,7 @@ 
 			if (isset($this->titles[$link_id])) {
 				$title = $this->titles[$link_id];
 				$title = $this->encodeAttribute($title);
-				$result .=  " title=\"$title\"";
+				$result .= " title=\"$title\"";
 			}
 			$result .= $this->build_class_attributes("img");
 			$result .= $this->empty_element_suffix;
@@ -890,17 +890,17 @@ 
 	 * @return string
 	 */
 	protected function _doImages_inline_callback($matches) {
-		$whole_match	= $matches[1];
-		$alt_text		= $matches[2];
-		$url			= $matches[3] == '' ? $matches[4] : $matches[3];
-		$title			=& $matches[7];
+		$whole_match = $matches[1];
+		$alt_text = $matches[2];
+		$url = $matches[3] == '' ? $matches[4] : $matches[3];
+		$title = & $matches[7];
 
 		$alt_text = $this->encodeAttribute($alt_text);
 		$url = $this->encodeURLAttribute($url);
 		$result = "<img src=\"$url\" alt=\"$alt_text\"";
 		if (isset($title)) {
 			$title = $this->encodeAttribute($title);
-			$result .=  " title=\"$title\""; // $title already quoted
+			$result .= " title=\"$title\""; // $title already quoted
 		}
 		$result .= $this->build_class_attributes("img");
 		$result .= $this->empty_element_suffix;
@@ -962,7 +962,7 @@ 
 		// ID attribute generation
 		$idAtt = $this->_generateIdFromHeaderValue($matches[1]);
 
-		$block = "<h$level$idAtt>".$this->runSpanGamut($matches[1])."</h$level>";
+		$block = "<h$level$idAtt>" . $this->runSpanGamut($matches[1]) . "</h$level>";
 		return "\n" . $this->hashBlock($block) . "\n\n";
 	}
 
@@ -976,7 +976,7 @@ 
 		$idAtt = $this->_generateIdFromHeaderValue($matches[2]);
 
 		$level = strlen($matches[1]);
-		$block = "<h$level$idAtt>".$this->runSpanGamut($matches[2])."</h$level>";
+		$block = "<h$level$idAtt>" . $this->runSpanGamut($matches[2]) . "</h$level>";
 		return "\n" . $this->hashBlock($block) . "\n\n";
 	}
 
@@ -1024,8 +1024,8 @@ 
 			$whole_list_re = '
 				(								# $1 = whole list
 				  (								# $2
-					([ ]{0,'.$less_than_tab.'})	# $3 = number of spaces
-					('.$marker_re.')			# $4 = first list item marker
+					([ ]{0,'.$less_than_tab . '})	# $3 = number of spaces
+					('.$marker_re . ')			# $4 = first list item marker
 					[ ]+
 				  )
 				  (?s:.+?)
@@ -1036,13 +1036,13 @@ 
 					  (?=\S)
 					  (?!						# Negative lookahead for another list item marker
 						[ ]*
-						'.$marker_re.'[ ]+
+						'.$marker_re . '[ ]+
 					  )
 					|
 					  (?=						# Lookahead for another kind of list
 					    \n
 						\3						# Must have the same indentation
-						'.$other_marker_re.'[ ]+
+						'.$other_marker_re . '[ ]+
 					  )
 				  )
 				)
@@ -1054,13 +1054,13 @@ 
 			if ($this->list_level) {
 				$text = preg_replace_callback('{
 						^
-						'.$whole_list_re.'
+						'.$whole_list_re . '
 					}mx',
 					array($this, '_doLists_callback'), $text);
 			} else {
 				$text = preg_replace_callback('{
 						(?:(?<=\n)\n|\A\n?) # Must eat the newline
-						'.$whole_list_re.'
+						'.$whole_list_re . '
 					}mx',
 					array($this, '_doLists_callback'), $text);
 			}
@@ -1084,7 +1084,7 @@ 
 		$list = $matches[1];
 		$list_type = preg_match("/$marker_ul_re/", $matches[4]) ? "ul" : "ol";
 
-		$marker_any_re = ( $list_type == "ul" ? $marker_ul_re : $marker_ol_re );
+		$marker_any_re = ($list_type == "ul" ? $marker_ul_re : $marker_ol_re);
 
 		$list .= "\n";
 		$result = $this->processListItems($list, $marker_any_re);
@@ -1095,18 +1095,18 @@ 
 			if ($list_type == 'ol') {
 				$ol_start_array = array();
 				$ol_start_check = preg_match("/$marker_ol_start_re/", $matches[4], $ol_start_array);
-				if ($ol_start_check){
+				if ($ol_start_check) {
 					$ol_start = $ol_start_array[0];
 				}
 			}
 		}
 
-		if ($ol_start > 1 && $list_type == 'ol'){
+		if ($ol_start > 1 && $list_type == 'ol') {
 			$result = $this->hashBlock("<$list_type start=\"$ol_start\">\n" . $result . "</$list_type>");
 		} else {
 			$result = $this->hashBlock("<$list_type>\n" . $result . "</$list_type>");
 		}
-		return "\n". $result ."\n\n";
+		return "\n" . $result . "\n\n";
 	}
 
 	/**
@@ -1153,12 +1153,12 @@ 
 		$list_str = preg_replace_callback('{
 			(\n)?							# leading line = $1
 			(^[ ]*)							# leading whitespace = $2
-			('.$marker_any_re.'				# list marker and space = $3
+			('.$marker_any_re . '				# list marker and space = $3
 				(?:[ ]+|(?=\n))	# space only required if item is not empty
 			)
 			((?s:.*?))						# list item text   = $4
 			(?:(\n+(?=\n))|\n)				# tailing blank line = $5
-			(?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n))))
+			(?= \n* (\z | \2 ('.$marker_any_re . ') (?:[ ]+|(?=\n))))
 			}xm',
 			array($this, '_processListItems_callback'), $list_str);
 
@@ -1173,17 +1173,17 @@ 
 	 */
 	protected function _processListItems_callback($matches) {
 		$item = $matches[4];
-		$leading_line =& $matches[1];
-		$leading_space =& $matches[2];
+		$leading_line = & $matches[1];
+		$leading_space = & $matches[2];
 		$marker_space = $matches[3];
-		$tailing_blank_line =& $matches[5];
+		$tailing_blank_line = & $matches[5];
 
 		if ($leading_line || $tailing_blank_line ||
 			preg_match('/\n{2,}/', $item))
 		{
 			// Replace marker with the appropriate whitespace indentation
 			$item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item;
-			$item = $this->runBlockGamut($this->outdent($item)."\n");
+			$item = $this->runBlockGamut($this->outdent($item) . "\n");
 		} else {
 			// Recursion for sub-lists:
 			$item = $this->doLists($this->outdent($item));
@@ -1203,11 +1203,11 @@ 
 				(?:\n\n|\A\n?)
 				(	            # $1 = the code block -- one or more lines, starting with a space/tab
 				  (?>
-					[ ]{'.$this->tab_width.'}  # Lines must start with a tab or a tab-width of spaces
+					[ ]{'.$this->tab_width . '}  # Lines must start with a tab or a tab-width of spaces
 					.*\n+
 				  )+
 				)
-				((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
+				((?=^[ ]{0,'.$this->tab_width . '}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
 			}xm',
 			array($this, '_doCodeBlocks_callback'), $text);
 
@@ -1335,8 +1335,8 @@ 
 			// Each token is then passed to handleSpanToken.
 			$parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
 			$text_stack[0] .= $parts[0];
-			$token =& $parts[1];
-			$text =& $parts[2];
+			$token = & $parts[1];
+			$text = & $parts[2];
 
 			if (empty($token)) {
 				// Reached end of text span: empty stack without emitting.
@@ -1363,7 +1363,7 @@ 
 				} else {
 					// Other closing marker: close one em or strong and
 					// change current token state to match the other
-					$token_stack[0] = str_repeat($token[0], 3-$token_len);
+					$token_stack[0] = str_repeat($token[0], 3 - $token_len);
 					$tag = $token_len == 2 ? "strong" : "em";
 					$span = $text_stack[0];
 					$span = $this->runSpanGamut($span);
@@ -1709,7 +1709,7 @@ 
 		}
 
 		$chars = preg_split('/(?<!^)(?!$)/', $text);
-		$seed = (int)abs(crc32($text) / strlen($text)); // Deterministic seed.
+		$seed = (int) abs(crc32($text) / strlen($text)); // Deterministic seed.
 
 		foreach ($chars as $key => $char) {
 			$ord = ord($char);
@@ -1722,9 +1722,9 @@ 
 				if ($r > 90 && strpos('@"&>', $char) === false) {
 					/* do nothing */
 				} else if ($r < 45) {
-					$chars[$key] = '&#x'.dechex($ord).';';
+					$chars[$key] = '&#x' . dechex($ord) . ';';
 				} else {
-					$chars[$key] = '&#'.$ord.';';
+					$chars[$key] = '&#' . $ord . ';';
 				}
 			}
 		}
@@ -1746,11 +1746,11 @@ 
 
 		$span_re = '{
 				(
-					\\\\'.$this->escape_chars_re.'
+					\\\\'.$this->escape_chars_re . '
 				|
 					(?<![`\\\\])
 					`+						# code span marker
-			'.( $this->no_markup ? '' : '
+			'.($this->no_markup ? '' : '
 				|
 					<!--    .*?     -->		# comment
 				|
@@ -1766,7 +1766,7 @@ 
 					<[-a-zA-Z0-9:_]+\s*/> # xml-style empty tag
 				|
 					</[-a-zA-Z0-9:_]+\s*> # closing tag
-			').'
+			') . '
 				)
 				}xs';
 
@@ -1803,10 +1803,10 @@ 
 	protected function handleSpanToken($token, &$str) {
 		switch ($token[0]) {
 			case "\\":
-				return $this->hashPart("&#". ord($token[1]). ";");
+				return $this->hashPart("&#" . ord($token[1]) . ";");
 			case "`":
 				// Search for end marker in remaining text.
-				if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm',
+				if (preg_match('/^(.*?[^`])' . preg_quote($token) . '(?!`)(.*)$/sm',
 					$str, $matches))
 				{
 					$str = $matches[2];
@@ -1920,14 +1920,14 @@ 
 	 * @return string
 	 */
 	protected function build_class_attributes($tag) {
-		if($this->class_attributes === null || !isset($this->class_attributes[$tag])) {
+		if ($this->class_attributes === null || !isset($this->class_attributes[$tag])) {
 			return "";
 		}
 		
 		$attributes = $this->class_attributes[$tag];
-		if(is_string($attributes)) {
+		if (is_string($attributes)) {
 			return ' class="' . $attributes . '"';
-		} else if(is_array($attributes)) {
+		} else if (is_array($attributes)) {
 			return ' class="' . implode(' ', $attributes) . '"';
 		} else {
 			return '';