From 037a5bc682774cf64f9933dd8c574d2013d86426 Mon Sep 17 00:00:00 2001
From: Rick Ellis <rick.ellis@ellislab.com>
Date: Wed, 10 Sep 2008 22:58:21 +0000
Subject: Moved the "auto typography" class into its own class file in the
 libraries folder

---
 system/helpers/typography_helper.php | 469 +----------------------------------
 1 file changed, 3 insertions(+), 466 deletions(-)

(limited to 'system/helpers/typography_helper.php')

diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php
index cfb2b94f6..ce628115a 100644
--- a/system/helpers/typography_helper.php
+++ b/system/helpers/typography_helper.php
@@ -75,476 +75,13 @@ if ( ! function_exists('auto_typography'))
 {
 	function auto_typography($str)
 	{
-		$TYPE = new Auto_typography();
-		return $TYPE->convert($str);
-	}
-}
-	
-// ------------------------------------------------------------------------
-
-/**
- * Auto Typography Class
- *
- *
- * @access		private
- * @category	Helpers
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/helpers/
- */
-class Auto_typography {
-
-	// Block level elements that should not be wrapped inside <p> tags
-	var $block_elements = 'div|blockquote|pre|code|h\d|script|ol|ul';
-	
-	// Elements that should not have <p> and <br /> tags within them.
-	var $skip_elements	= 'pre|ol|ul';
-	
-	// Tags we want the parser to completely ignore when splitting the string.
-	var $ignore_elements = 'a|b|i|em|strong|span|img|li';	
-
-
-	/**
-	 * Main Processing Function
-	 *
-	 */
-	function convert($str)
-	{
-		if ($str == '')
-		{
-			return '';
-		}
-		
-		$str = ' '.$str.' ';
-		
-		// Standardize Newlines to make matching easier
-		if (strpos($str, "\r") !== FALSE)
-		{
-			$str = str_replace(array("\r\n", "\r"), "\n", $str);			
-		}
-		
-		/*
-		 * Reduce line breaks
-		 *
-		 * If there are more than two consecutive line
-		 * breaks we'll compress them down to a maximum
-		 * of two since there's no benefit to more.
-		 *
-		 */
-		$str = preg_replace("/\n\n+/", "\n\n", $str);
-
-		/*
-		 * Convert quotes within tags to temporary marker
-		 *
-		 * We don't want quotes converted within
-		 * tags so we'll temporarily convert them to
-		 * {@DQ} and {@SQ}
-		 *
-		 */			
-		if (preg_match_all("#\<.+?>#si", $str, $matches))
-		{
-			for ($i = 0; $i < count($matches['0']); $i++)
-			{
-				$str = str_replace($matches['0'][$i],
-									str_replace(array("'",'"'), array('{@SQ}', '{@DQ}'), $matches['0'][$i]),
-									$str);
-			}
-		}
-	
-
-		/*
-		 * Add closing/opening paragraph tags before/after "block" elements
-		 *
-		 * Since block elements (like <blockquotes>, <pre>, etc.) do not get
-		 * wrapped in paragraph tags we will add a closing </p> tag just before
-		 * each block element starts and an opening <p> tag right after the block element
-		 * ends.  Later on we'll do some further clean up.
-		 *
-		 */
-		$str = preg_replace("#(<)(".$this->block_elements.")(.*?>)#", "</p>\\1\\2\\3", $str);
-		$str = preg_replace("#(</)(".$this->block_elements.")(.*?>)#", "\\1\\2\\3<p>", $str);
+		$CI =& get_instance();
 	
-		/*
-		 * Convert "ignore" tags to temporary marker
-		 *
-		 * The parser splits out the string at every tag
-		 * it encounters.  Certain inline tags, like image
-		 * tags, links, span tags, etc. will be adversely
-		 * affected if they are split out so we'll convert
-		 * the opening < temporarily to: {@TAG}
-		 *
-		 */		
-		$str = preg_replace("#<(/*)(".$this->ignore_elements.")#i", "{@TAG}\\1\\2", $str);	
-		
-		/*
-		 * Split the string at every tag
-		 *
-		 * This creates an array with this prototype:
-		 *
-		 *	[array]
-		 *	{
-		 *		[0] = <opening tag>
-		 *		[1] = Content contained between the tags
-		 *		[2] = <closing tag>
-		 *		Etc...
-		 *	}
-		 *
-		 */			
-		$chunks = preg_split('/(<(?:[^<>]+(?:"[^"]*"|\'[^\']*\')?)+>)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
-		
-		/*
-		 * Build our finalized string
-		 *
-		 * We'll cycle through the array, skipping tags,
-		 * and processing the contained text
-		 *
-		 */			
-		$str = '';
-		$process = TRUE;
-		foreach ($chunks as $chunk)
-		{
-			/*
-			 * Are we dealing with a tag?
-			 *
-			 * If so, we'll skip the processing for this cycle.
-			 * Well also set the "process" flag which allows us
-			 * to skip <pre> tags and a few other things.
-			 *
-			 */
-			if (preg_match("#<(/*)(".$this->block_elements.").*?\>#", $chunk, $match))
-			{
-				if (preg_match("#".$this->skip_elements."#", $match['2']))
-				{
-					$process =  ($match['1'] == '/') ? TRUE : FALSE;		
-				}
-		
-				$str .= $chunk;
-				continue;
-			}
-		
-			if ($process == FALSE)
-			{
-				$str .= $chunk;
-				continue;
-			}
-			
-			//  Convert Newlines into <p> and <br /> tags
-			$str .= $this->format_newlines($chunk);
-		}
-
-		// FINAL CLEAN UP
-		// IMPORTANT:  DO NOT ALTER THE ORDER OF THE ITEMS BELOW!
-		
-		/*
-		 * Clean up paragraph tags before/after "block" elements
-		 *
-		 * Earlier we added <p></p> tags before/after block level elements.
-		 * Then, we added paragraph tags around double line breaks.  This
-		 * potentially created incorrectly formatted paragraphs so we'll
-		 * clean it up here.
-		 *
-		 */
-		$str = preg_replace("#<p>({@TAG}.*?)(".$this->block_elements.")(.*?>)#", "\\1\\2\\3", $str);
-		$str = preg_replace("#({@TAG}/.*?)(".$this->block_elements.")(.*?>)</p>#", "\\1\\2\\3", $str);
-
-		// Convert Quotes and other characters
-		$str = $this->format_characters($str);
-		
-		// Fix an artifact that happens during the paragraph replacement
-		$str = preg_replace('#(<p>\n*</p>)#', '', $str);
-
-		// If the user submitted their own paragraph tags with class data
-		// in them we will retain them instead of using our tags.
-		$str = preg_replace('#(<p.*?>)<p>#', "\\1", $str);
-
-		// Final clean up
-		$str = str_replace(
-							array(
-									'</p></p>',
-									'</p><p>',
-									'<p> ',
-									' </p>',
-									'{@TAG}',
-									'{@DQ}',
-									'{@SQ}',
-									'<p></p>'
-								),
-							array(
-									'</p>',
-									'<p>',
-									'<p>',
-									'</p>',
-									'<',
-									'"',
-									"'",
-									''
-								),
-							$str
-						);
+		$CI->load->library('typography');
 		
-		return $str;
+		return $CI->typography->convert($str);
 	}
-	
-	// --------------------------------------------------------------------
-
-	/**
-	 * Format Characters
-	 *
-	 * This function mainly converts double and single quotes
-	 * to entities, but since these are directional, it does
-	 * it based on some rules.  It also converts em-dashes
-	 * and a couple other things.
-	 */
-	function format_characters($str)
-	{	
-		$table = array(
-						' "'		=> " &#8220;",
-						'" '		=> "&#8221; ",
-						" '"		=> " &#8216;",
-						"' "		=> "&#8217; ",
-						
-						'>"'		=> ">&#8220;",
-						'"<'		=> "&#8221;<",
-						">'"		=> ">&#8216;",
-						"'<"		=> "&#8217;<",
-
-						"\"."		=> "&#8221;.",
-						"\","		=> "&#8221;,",
-						"\";"		=> "&#8221;;",
-						"\":"		=> "&#8221;:",
-						"\"!"		=> "&#8221;!",
-						"\"?"		=> "&#8221;?",
-						
-						".  "		=> ".&nbsp; ",
-						"?  "		=> "?&nbsp; ",
-						"!  "		=> "!&nbsp; ",
-						":  "		=> ":&nbsp; ",
-					);
-
-		// These deal with quotes within quotes, like:  "'hi here'"
-		$start = 0;
-		$space = array("\n", "\t", " ");
-		
-		while(TRUE)
-		{
-			$current = strpos(substr($str, $start), "\"'");
-			
-			if ($current === FALSE) break;
-			
-			$one_before = substr($str, $start+$current-1, 1);
-			$one_after = substr($str, $start+$current+2, 1);
-			
-			if ( ! in_array($one_after, $space, TRUE) && $one_after != "<")
-			{
-				$str = str_replace(	$one_before."\"'".$one_after,
-									$one_before."&#8220;&#8216;".$one_after,
-									$str);
-			}
-			elseif ( ! in_array($one_before, $space, TRUE) && (in_array($one_after, $space, TRUE) OR $one_after == '<'))
-			{
-				$str = str_replace(	$one_before."\"'".$one_after,
-									$one_before."&#8221;&#8217;".$one_after,
-									$str);
-			}
-			
-			$start = $start+$current+2;
-		}
-		
-		$start = 0;
-		
-		while(TRUE)
-		{
-			$current = strpos(substr($str, $start), "'\"");
-			
-			if ($current === FALSE) break;
-			
-			$one_before = substr($str, $start+$current-1, 1);
-			$one_after = substr($str, $start+$current+2, 1);
-			
-			if ( in_array($one_before, $space, TRUE) && ! in_array($one_after, $space, TRUE) && $one_after != "<")
-			{
-				$str = str_replace(	$one_before."'\"".$one_after,
-									$one_before."&#8216;&#8220;".$one_after,
-									$str);
-			}
-			elseif ( ! in_array($one_before, $space, TRUE) && $one_before != ">")
-			{
-				$str = str_replace(	$one_before."'\"".$one_after,
-									$one_before."&#8217;&#8221;".$one_after,
-									$str);
-			}
-			
-			$start = $start+$current+2;
-		}
-		
-		// Are there quotes within a word, as in:  ("something")
-		if (preg_match_all("/(.)\"(\S+?)\"(.)/", $str, $matches))
-		{
-			for ($i=0, $s=sizeof($matches['0']); $i < $s; ++$i)
-			{
-				if ( ! in_array($matches['1'][$i], $space, TRUE) && ! in_array($matches['3'][$i], $space, TRUE))
-				{
-					$str = str_replace(	$matches['0'][$i],
-										$matches['1'][$i]."&#8220;".$matches['2'][$i]."&#8221;".$matches['3'][$i],
-										$str);
-				}
-			}
-		}
-		
-		if (preg_match_all("/(.)\'(\S+?)\'(.)/", $str, $matches))
-		{
-			for ($i=0, $s=sizeof($matches['0']); $i < $s; ++$i)
-			{
-				if ( ! in_array($matches['1'][$i], $space, TRUE) && ! in_array($matches['3'][$i], $space, TRUE))
-				{
-					$str = str_replace(	$matches['0'][$i],
-										$matches['1'][$i]."&#8216;".$matches['2'][$i]."&#8217;".$matches['3'][$i],
-										$str);
-				}
-			}
-		}
-		
-		// How about one apostrophe, as in Rick's
-		$start = 0;
-		
-		while(TRUE)
-		{
-			$current = strpos(substr($str, $start), "'");
-			
-			if ($current === FALSE) break;
-			
-			$one_before = substr($str, $start+$current-1, 1);
-			$one_after = substr($str, $start+$current+1, 1);
-			
-			if ( ! in_array($one_before, $space, TRUE) && ! in_array($one_after, $space, TRUE))
-			{
-				$str = str_replace(	$one_before."'".$one_after,
-									$one_before."&#8217;".$one_after,
-									$str);
-			}
-			
-			$start = $start+$current+2;
-		}
-
-		// Em-dashes
-		$start = 0;
-		while(TRUE)
-		{
-			$current = strpos(substr($str, $start), "--");
-			
-			if ($current === FALSE) break;
-			
-			$one_before = substr($str, $start+$current-1, 1);
-			$one_after = substr($str, $start+$current+2, 1);
-			$two_before = substr($str, $start+$current-2, 1);
-			$two_after = substr($str, $start+$current+3, 1);
-			
-			if (( ! in_array($one_before, $space, TRUE) && ! in_array($one_after, $space, TRUE))
-				OR
-				( ! in_array($two_before, $space, TRUE) && ! in_array($two_after, $space, TRUE) && $one_before == ' ' && $one_after == ' ')
-				)
-			{
-				$str = str_replace(	$two_before.$one_before."--".$one_after.$two_after,
-									$two_before.trim($one_before)."&#8212;".trim($one_after).$two_after,
-									$str);
-			}
-			
-			$start = $start+$current+2;
-		}
-		
-		// Ellipsis
-		$str = preg_replace("#(\w)\.\.\.(\s|<br />|</p>)#", "\\1&#8230;\\2", $str);
-		$str = preg_replace("#(\s|<br />|</p>)\.\.\.(\w)#", "\\1&#8230;\\2", $str);
-		
-		// Run the translation array we defined above		
-		$str = str_replace(array_keys($table), array_values($table), $str);
-		
-		// If there are any stray double quotes we'll catch them here
-		
-		$start = 0;
-		
-		while(TRUE)
-		{
-			$current = strpos(substr($str, $start), '"');
-			
-			if ($current === FALSE) break;
-			
-			$one_before = substr($str, $start+$current-1, 1);
-			$one_after = substr($str, $start+$current+1, 1);
-			
-			if ( ! in_array($one_after, $space, TRUE))
-			{
-				$str = str_replace(	$one_before.'"'.$one_after,
-									$one_before."&#8220;".$one_after,
-									$str);
-			}
-			elseif( ! in_array($one_before, $space, TRUE))
-			{
-				$str = str_replace(	$one_before."'".$one_after,
-									$one_before."&#8221;".$one_after,
-									$str);
-			}
-			
-			$start = $start+$current+2;
-		}
-		
-		$start = 0;
-		
-		while(TRUE)
-		{
-			$current = strpos(substr($str, $start), "'");
-			
-			if ($current === FALSE) break;
-			
-			$one_before = substr($str, $start+$current-1, 1);
-			$one_after = substr($str, $start+$current+1, 1);
-			
-			if ( ! in_array($one_after, $space, TRUE))
-			{
-				$str = str_replace(	$one_before."'".$one_after,
-									$one_before."&#8216;".$one_after,
-									$str);
-			}
-			elseif( ! in_array($one_before, $space, TRUE))
-			{
-				$str = str_replace(	$one_before."'".$one_after,
-									$one_before."&#8217;".$one_after,
-									$str);
-			}
-			
-			$start = $start+$current+2;
-		}
-		
-		return $str;
-	}
-	
-	// --------------------------------------------------------------------
-
-	/**
-	 * Format Newlines
-	 *
-	 * Converts newline characters into either <p> tags or <br />
-	 *
-	 */	
-	function format_newlines($str)
-	{
-		if ($str == '')
-		{
-			return $str;
-		}
-
-		if (strpos($str, "\n") === FALSE)
-		{
-			return '<p>'.$str.'</p>';
-		}
-			
-		$str = str_replace("\n\n", "</p>\n\n<p>", $str);
-		$str = preg_replace("/([^\n])(\n)([^\n])/", "\\1<br />\\2\\3", $str);
-		
-		return '<p>'.$str.'</p>';
-	}	
 }
 
-
-
 /* End of file typography_helper.php */
 /* Location: ./system/helpers/typography_helper.php */
\ No newline at end of file
-- 
cgit v1.2.3-24-g4f1b