From 7f9b9edd0c81cd068126862b1b022e12a00c1103 Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Sun, 22 Jan 2006 06:39:35 +0000
Subject: [PATCH] Moving the type-specific classes from SVNCommon to SVNLib as
 they belong in the library

---
 includes/svncommon.php | 461 -----------------------------------------
 includes/svnlib.php    | 461 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 461 insertions(+), 461 deletions(-)

diff --git a/includes/svncommon.php b/includes/svncommon.php
index 86a47a1..5e39e8d 100644
--- a/includes/svncommon.php
+++ b/includes/svncommon.php
@@ -246,467 +246,6 @@ class SVNCommon
 	}
 }
 
-/**
-* Annotation/blame system; constructs an array
-* that is ready for output
-*
-* @package	ViewSVN
-* @version	$Id$
-*/
-class SVNBlame
-{
-	/**
-	* Array of blame information
-	* @var	array
-	*/
-	var $blame = array();
-	
-	/**
-	* Raw "svn blame" output
-	* @var	array
-	*/
-	var $rawoutput;
-	
-	/**
-	* Constructor: create blame and store data
-	*
-	* @param	string	Repository
-	* @param	string	Path
-	* @param	integer	Revision
-	*/
-	function SVNBlame($repos, $path, $revision)
-	{
-		global $viewsvn;
-		
-		$this->rawoutput = $viewsvn->svn->blame($repos, $path, $revision);
-		$this->process();
-	}
-	
-	/**
-	* Returns blame for display
-	*
-	* @access	public
-	*
-	* @return	array	Blame data
-	*/
-	function fetch()
-	{
-		return $this->blame;
-	}
-	
-	/**
-	* Parses the blame data
-	*
-	* @access	private
-	*/
-	function process()
-	{
-		$lineno = 1;
-		
-		foreach ($this->rawoutput AS $line)
-		{
-			if (preg_match('#^\s+([0-9]+)\s+([\w\.\-_]+)\s(.*)$#', $line, $matches))
-			{
-				$this->blame[] = array(
-					'rev'		=> $matches[1],
-					'author'	=> $matches[2],
-					'line'		=> $matches[3],
-					'lineno'	=> $lineno++
-				);
-			}
-			// a blank line
-			else if (preg_match('#^\s+([0-9]+)\s+([\w\.\-_]+)$#', $line, $matches))
-			{
-				$this->blame[] = array(
-					'rev'		=> $matches[1],
-					'author'	=> $matches[2],
-					'line'		=> '',
-					'lineno'	=> $lineno++
-				);
-			}
-		}
-	}
-}
-
-/**
-* Log management system; creates a complex list
-* of SVN log information
-*
-* @package	ViewSVN
-* @version	$Id$
-*/
-class SVNLog
-{
-	/**
-	* Array of logs
-	* @var	array
-	*/
-	var $logs = array();
-	
-	/**
-	* Raw "svn log" output
-	* @var	array
-	*/
-	var $rawoutput;
-	
-	/**
-	* Constructor: create log store for the given file
-	*
-	* @param	string	Repository
-	* @param	string	Path
-	* @param	integer	Lower revision
-	* @param	integer	Higher revision
-	*/
-	function SVNLog($repos, $path, $lorev, $hirev)
-	{
-		global $viewsvn;
-		
-		$this->rawoutput = $viewsvn->svn->log($repos, $path, $lorev, $hirev);
-		$this->process();
-	}
-	
-	/**
-	* Returns logs for display
-	*
-	* @access	public
-	*
-	* @return	array	Log data
-	*/
-	function fetch()
-	{
-		return $this->logs;
-	}
-	
-	/**
-	* Splits up the raw output into a usable log
-	*
-	* @access	private
-	*/
-	function process()
-	{
-		$lastrev = 0;
-		
-		for ($i = 1; $i <= count($this->rawoutput) - 1; $i++)
-		{
-			$line = $this->rawoutput["$i"];
-			
-			if (preg_match('#^r([0-9]*) \| (.*?) \| (....-..-.. ..:..:..) ([0-9\-]*) \((.*?)\) \| ([0-9]*) lines?$#', $line, $matches))
-			{
-				if (isset($this->logs["$lastrev"]))
-				{
-					$this->logs["$lastrev"]['message'] = $this->strip_last_line($this->logs["$lastrev"]['message']);
-				}
-				
-				$this->logs["$matches[1]"] = array(
-					'rev'		=> $matches[1],
-					'author'	=> $matches[2],
-					'date'		=> $matches[3],
-					'timezone'	=> $matches[4],
-					'lines'		=> $matches[6],
-					'message'	=> ''
-				);
-				
-				$lastrev = $matches[1];
-			}
-			else if (preg_match('#^\s+([ADMR])\s(.*)#', $line, $matches))
-			{
-				if (preg_match('#(.*) \(from (.*?)\)$#', $matches[2], $amatches))
-				{
-					$matches[2] = $amatches[1];
-				}
-				
-				$this->logs["$lastrev"]['files'][] = array(
-					'action'	=> $matches[1],
-					'file'		=> trim($matches[2]),
-					'from'		=> (isset($amatches[2]) ? $amatches[2] : '')
-				);
-			}
-			else
-			{
-				if (trim($line) != 'Changed paths:')
-				{
-					$this->logs["$lastrev"]['message'] .= $line . "\n";
-				}
-			}
-		}
-		
-		if (isset($this->logs["$lastrev"]))
-		{
-			$this->logs["$lastrev"]['message'] = $this->strip_last_line($this->logs["$lastrev"]['message']);
-		}
-	}
-	
-	/**
-	* Trims the last dash line off a message
-	*
-	* @access	private
-	*
-	* @param	string	Message with annoying-ass line
-	*
-	* @return	string	Clean string
-	*/
-	function strip_last_line($string)
-	{
-		return trim(preg_replace("#\n(.*?)\n$#", '', $string));
-	}
-}
-
-/**
-* Diff system; constructs a diff array that
-* is ready for output
-*
-* @package	ViewSVN
-*/
-class SVNDiff
-{
-	/**
-	* Array of diff information
-	* @var	array
-	*/
-	var $diff = array();
-	
-	/**
-	* Raw "svn diff" output
-	* @var	array
-	*/
-	var $rawoutput;
-	
-	/**
-	* Constructor: create and store diff data
-	*
-	* @param	string	Repository
-	* @param	string	Path
-	* @param	integer	Lower revision
-	* @param	integer	Higher revision
-	*/
-	function SVNDiff($repos, $path, $lorev, $hirev)
-	{
-		global $viewsvn;
-		
-		$this->rawoutput = $viewsvn->svn->diff($repos, $path, $lorev, $hirev);
-		$this->process();
-	}
-	
-	/**
-	* Returns diffs for display
-	*
-	* @access	public
-	*
-	* @return	array	Diff data
-	*/
-	function fetch()
-	{
-		return $this->diff;
-	}
-	
-	/**
-	* Processes and prepares diff data
-	*
-	* @access	private
-	*/
-	function process()
-	{
-		global $viewsvn;
-		
-		$chunk = 0;
-		$indexcounter = null;
-		$curprop = '';
-		
-		$delstack = array();
-		
-		foreach ($this->rawoutput AS $line)
-		{
-			if (preg_match('#^@@ \-([0-9]*),([0-9]*) \+([0-9]*),([0-9]*) @@$#', $line, $bits))
-			{
-				$property = false;
-				$delstack = array();
-				$this->diff["$index"][ ++$chunk ]['hunk'] = array('old' => array('line' => $bits[1], 'count' => $bits[2]), 'new' => array('line' => $bits[3], 'count' => $bits[4]));
-				$lines['old'] = $this->diff["$index"]["$chunk"]['hunk']['old']['line'] - 1;
-				$lines['new'] = $this->diff["$index"]["$chunk"]['hunk']['new']['line'] - 1;
-				continue;
-			}
-			else if (preg_match('#^Property changes on: (.*?)$#', $line, $bits))
-			{
-				$property = true;
-				$index = $bits[1];
-				$this->diff["$index"]['props'] = array();
-				continue;
-			}
-			
-			if ($indexcounter <= 3 AND $indexcounter !== null)
-			{
-				$indexcounter++;
-				continue;
-			}
-			else if ($indexcounter == 3)
-			{
-				$indexcounter = null;
-				continue;
-			}
-			
-			if (preg_match('#^([\+\- ])(.*)#', $line, $matches) AND !$property)
-			{
-				$act = $matches[1];
-				$content = $matches[2];
-				
-				if ($act == ' ')
-				{
-					$this->diff["$index"]["$chunk"][] = array(
-						'line'		=> $content,
-						'act'		=> '',
-						'oldlineno'	=> ++$lines['old'],
-						'newlineno'	=> ++$lines['new']
-					);
-					
-					$delstack = array();
-				}
-				else if ($act == '+')
-				{		
-					// potential line delta
-					if (count($delstack) > 0)
-					{
-						$lastline = array_shift($delstack);
-						
-						if ($delta = @$this->fetch_diff_extent($lastline['line'], $content))
-						{
-							if (strlen($lastline['line']) > ($delta['start'] - $delta['end']))
-							{
-								$end = strlen($lastline['line']) + $delta['end'];
-								$viewsvn->debug("RM delta- = " . $end);
-								$change = '{@-' . '-}' . substr($lastline['line'], $delta['start'], $end - $delta['start']) . '{/@-' . '-}';
-								$this->diff["$index"]["$chunk"]["$lastline[INDEX]"]['line'] = substr($lastline['line'], 0, $delta['start']) . $change . substr($lastline['line'], $end);
-							}
-							
-							if (strlen($content) > $delta['start'] - $delta['end'])
-							{
-								$end = strlen($content) + $delta['end'];
-								$viewsvn->debug("MK delta+ = " . $end);
-								$change = '{@+' . '+}' . substr($content, $delta['start'], $end - $delta['start']) . '{/@+' . '+}';
-								$content = substr($content, 0, $delta['start']) . $change . substr($content, $end);
-							}
-						}
-					}
-					
-					$this->diff["$index"]["$chunk"][] = array(
-						'line'		=> $content,
-						'act'		=> '+',
-						'oldlineno'	=> '',
-						'newlineno'	=> ++$lines['new']
-					);
-				}
-				else if ($act == '-')
-				{
-					$this->diff["$index"]["$chunk"][] = $thearray = array(
-						'line'		=> $content,
-						'act'		=> '-',
-						'oldlineno'	=> ++$lines['old'],
-						'newlineno'	=> ''
-					);
-					
-					$key = count($this->diff["$index"]["$chunk"]) - 2;
-					$thearray['INDEX'] = $key;
-					
-					array_push($delstack, $thearray);
-				}
-			}
-			// whitespace lines
-			else
-			{
-				if (preg_match('#^Index: (.*?)$#', $line, $matches))
-				{
-					$index = $matches[1];
-					$indexcounter = 1;
-					$chunk = 0;
-					continue;
-				}
-				
-				if ($property)
-				{
-					if (preg_match('#^__*_$#', trim($line)))
-					{
-						$viewsvn->debug("skipping: $line");
-						continue;
-					}
-					
-					if (preg_match('#Name: (.*?)$#', $line, $matches))
-					{
-						$curprop = $matches[1];
-						$viewsvn->debug("prop: $curprop");
-						continue;
-					}
-					else
-					{
-						if (preg_match('#^\s+?\+(.*)#', $line, $matches))
-						{
-							$mode = 'add';
-							$this->diff["$index"]['props']["$curprop"]['add'] .= $matches[1];
-						}
-						else if (preg_match('#^\s+?\-(.*)#', $line, $matches))
-						{
-							$mode = 'del';
-							$this->diff["$index"]['props']["$curprop"]['del'] .= $matches[1];
-						}
-						else if (!preg_match('#^\s+[\+\- ](.*)#', $line) AND trim($line) != '')
-						{
-							$this->diff["$index"]['props']["$curprop"]["$mode"] .= "\n" . $line;
-						}
-						continue;
-					}
-				}
-				
-				$this->diff["$index"]["$chunk"][] = array(
-					'line'		=> '',
-					'act'		=> '',
-					'oldlineno'	=> ++$lines['old'],
-					'newlineno'	=> ++$lines['new']
-				);
-				
-				$delstack = array();
-			}
-		}
-	}
-	
-	/**
-	* Returns the amount of change that occured
-	* between two lines
-	*
-	* @access	private
-	*
-	* @param	string	Old line
-	* @param	string	New line
-	*
-	* @return	array	Difference of positions
-	*/
-	function fetch_diff_extent($old, $new)
-	{
-		global $viewsvn;
-		
-		$start = 0;
-		$min = min(strlen($old), strlen($new));
-		
-		$viewsvn->debug("min1 = $min");
-		
-		while ($start < $min AND $old["$start"] == $new["$start"])
-		{
-			$start++;
-		}
-		
-		$end = -1;
-		$min = $min - $start;
-		
-		$viewsvn->debug("min2 = $min");
-		
-		$viewsvn->debug("checking: " . $old[ strlen($old) + $end ] . ' ==  ' . $new[ strlen($new) + $end ]);
-		
-		while (-$end <= $min AND $old[ strlen($old) + $end ] == $new[ strlen($new) + $end ])
-		{
-			$end--;
-		}
-		
-		return array('start' => $start, 'end' => $end + 1);
-	}
-}
-
 /*=====================================================================*\
 || ###################################################################
 || # $HeadURL$
diff --git a/includes/svnlib.php b/includes/svnlib.php
index 76491d9..415d496 100644
--- a/includes/svnlib.php
+++ b/includes/svnlib.php
@@ -248,6 +248,467 @@ class SVNLib
 	}
 }
 
+/**
+* Annotation/blame system; constructs an array
+* that is ready for output
+*
+* @package	ViewSVN
+* @version	$Id$
+*/
+class SVNBlame
+{
+	/**
+	* Array of blame information
+	* @var	array
+	*/
+	var $blame = array();
+	
+	/**
+	* Raw "svn blame" output
+	* @var	array
+	*/
+	var $rawoutput;
+	
+	/**
+	* Constructor: create blame and store data
+	*
+	* @param	string	Repository
+	* @param	string	Path
+	* @param	integer	Revision
+	*/
+	function SVNBlame($repos, $path, $revision)
+	{
+		global $viewsvn;
+		
+		$this->rawoutput = $viewsvn->svn->blame($repos, $path, $revision);
+		$this->process();
+	}
+	
+	/**
+	* Returns blame for display
+	*
+	* @access	public
+	*
+	* @return	array	Blame data
+	*/
+	function fetch()
+	{
+		return $this->blame;
+	}
+	
+	/**
+	* Parses the blame data
+	*
+	* @access	private
+	*/
+	function process()
+	{
+		$lineno = 1;
+		
+		foreach ($this->rawoutput AS $line)
+		{
+			if (preg_match('#^\s+([0-9]+)\s+([\w\.\-_]+)\s(.*)$#', $line, $matches))
+			{
+				$this->blame[] = array(
+					'rev'		=> $matches[1],
+					'author'	=> $matches[2],
+					'line'		=> $matches[3],
+					'lineno'	=> $lineno++
+				);
+			}
+			// a blank line
+			else if (preg_match('#^\s+([0-9]+)\s+([\w\.\-_]+)$#', $line, $matches))
+			{
+				$this->blame[] = array(
+					'rev'		=> $matches[1],
+					'author'	=> $matches[2],
+					'line'		=> '',
+					'lineno'	=> $lineno++
+				);
+			}
+		}
+	}
+}
+
+/**
+* Log management system; creates a complex list
+* of SVN log information
+*
+* @package	ViewSVN
+* @version	$Id$
+*/
+class SVNLog
+{
+	/**
+	* Array of logs
+	* @var	array
+	*/
+	var $logs = array();
+	
+	/**
+	* Raw "svn log" output
+	* @var	array
+	*/
+	var $rawoutput;
+	
+	/**
+	* Constructor: create log store for the given file
+	*
+	* @param	string	Repository
+	* @param	string	Path
+	* @param	integer	Lower revision
+	* @param	integer	Higher revision
+	*/
+	function SVNLog($repos, $path, $lorev, $hirev)
+	{
+		global $viewsvn;
+		
+		$this->rawoutput = $viewsvn->svn->log($repos, $path, $lorev, $hirev);
+		$this->process();
+	}
+	
+	/**
+	* Returns logs for display
+	*
+	* @access	public
+	*
+	* @return	array	Log data
+	*/
+	function fetch()
+	{
+		return $this->logs;
+	}
+	
+	/**
+	* Splits up the raw output into a usable log
+	*
+	* @access	private
+	*/
+	function process()
+	{
+		$lastrev = 0;
+		
+		for ($i = 1; $i <= count($this->rawoutput) - 1; $i++)
+		{
+			$line = $this->rawoutput["$i"];
+			
+			if (preg_match('#^r([0-9]*) \| (.*?) \| (....-..-.. ..:..:..) ([0-9\-]*) \((.*?)\) \| ([0-9]*) lines?$#', $line, $matches))
+			{
+				if (isset($this->logs["$lastrev"]))
+				{
+					$this->logs["$lastrev"]['message'] = $this->strip_last_line($this->logs["$lastrev"]['message']);
+				}
+				
+				$this->logs["$matches[1]"] = array(
+					'rev'		=> $matches[1],
+					'author'	=> $matches[2],
+					'date'		=> $matches[3],
+					'timezone'	=> $matches[4],
+					'lines'		=> $matches[6],
+					'message'	=> ''
+				);
+				
+				$lastrev = $matches[1];
+			}
+			else if (preg_match('#^\s+([ADMR])\s(.*)#', $line, $matches))
+			{
+				if (preg_match('#(.*) \(from (.*?)\)$#', $matches[2], $amatches))
+				{
+					$matches[2] = $amatches[1];
+				}
+				
+				$this->logs["$lastrev"]['files'][] = array(
+					'action'	=> $matches[1],
+					'file'		=> trim($matches[2]),
+					'from'		=> (isset($amatches[2]) ? $amatches[2] : '')
+				);
+			}
+			else
+			{
+				if (trim($line) != 'Changed paths:')
+				{
+					$this->logs["$lastrev"]['message'] .= $line . "\n";
+				}
+			}
+		}
+		
+		if (isset($this->logs["$lastrev"]))
+		{
+			$this->logs["$lastrev"]['message'] = $this->strip_last_line($this->logs["$lastrev"]['message']);
+		}
+	}
+	
+	/**
+	* Trims the last dash line off a message
+	*
+	* @access	private
+	*
+	* @param	string	Message with annoying-ass line
+	*
+	* @return	string	Clean string
+	*/
+	function strip_last_line($string)
+	{
+		return trim(preg_replace("#\n(.*?)\n$#", '', $string));
+	}
+}
+
+/**
+* Diff system; constructs a diff array that
+* is ready for output
+*
+* @package	ViewSVN
+*/
+class SVNDiff
+{
+	/**
+	* Array of diff information
+	* @var	array
+	*/
+	var $diff = array();
+	
+	/**
+	* Raw "svn diff" output
+	* @var	array
+	*/
+	var $rawoutput;
+	
+	/**
+	* Constructor: create and store diff data
+	*
+	* @param	string	Repository
+	* @param	string	Path
+	* @param	integer	Lower revision
+	* @param	integer	Higher revision
+	*/
+	function SVNDiff($repos, $path, $lorev, $hirev)
+	{
+		global $viewsvn;
+		
+		$this->rawoutput = $viewsvn->svn->diff($repos, $path, $lorev, $hirev);
+		$this->process();
+	}
+	
+	/**
+	* Returns diffs for display
+	*
+	* @access	public
+	*
+	* @return	array	Diff data
+	*/
+	function fetch()
+	{
+		return $this->diff;
+	}
+	
+	/**
+	* Processes and prepares diff data
+	*
+	* @access	private
+	*/
+	function process()
+	{
+		global $viewsvn;
+		
+		$chunk = 0;
+		$indexcounter = null;
+		$curprop = '';
+		
+		$delstack = array();
+		
+		foreach ($this->rawoutput AS $line)
+		{
+			if (preg_match('#^@@ \-([0-9]*),([0-9]*) \+([0-9]*),([0-9]*) @@$#', $line, $bits))
+			{
+				$property = false;
+				$delstack = array();
+				$this->diff["$index"][ ++$chunk ]['hunk'] = array('old' => array('line' => $bits[1], 'count' => $bits[2]), 'new' => array('line' => $bits[3], 'count' => $bits[4]));
+				$lines['old'] = $this->diff["$index"]["$chunk"]['hunk']['old']['line'] - 1;
+				$lines['new'] = $this->diff["$index"]["$chunk"]['hunk']['new']['line'] - 1;
+				continue;
+			}
+			else if (preg_match('#^Property changes on: (.*?)$#', $line, $bits))
+			{
+				$property = true;
+				$index = $bits[1];
+				$this->diff["$index"]['props'] = array();
+				continue;
+			}
+			
+			if ($indexcounter <= 3 AND $indexcounter !== null)
+			{
+				$indexcounter++;
+				continue;
+			}
+			else if ($indexcounter == 3)
+			{
+				$indexcounter = null;
+				continue;
+			}
+			
+			if (preg_match('#^([\+\- ])(.*)#', $line, $matches) AND !$property)
+			{
+				$act = $matches[1];
+				$content = $matches[2];
+				
+				if ($act == ' ')
+				{
+					$this->diff["$index"]["$chunk"][] = array(
+						'line'		=> $content,
+						'act'		=> '',
+						'oldlineno'	=> ++$lines['old'],
+						'newlineno'	=> ++$lines['new']
+					);
+					
+					$delstack = array();
+				}
+				else if ($act == '+')
+				{		
+					// potential line delta
+					if (count($delstack) > 0)
+					{
+						$lastline = array_shift($delstack);
+						
+						if ($delta = @$this->fetch_diff_extent($lastline['line'], $content))
+						{
+							if (strlen($lastline['line']) > ($delta['start'] - $delta['end']))
+							{
+								$end = strlen($lastline['line']) + $delta['end'];
+								$viewsvn->debug("RM delta- = " . $end);
+								$change = '{@-' . '-}' . substr($lastline['line'], $delta['start'], $end - $delta['start']) . '{/@-' . '-}';
+								$this->diff["$index"]["$chunk"]["$lastline[INDEX]"]['line'] = substr($lastline['line'], 0, $delta['start']) . $change . substr($lastline['line'], $end);
+							}
+							
+							if (strlen($content) > $delta['start'] - $delta['end'])
+							{
+								$end = strlen($content) + $delta['end'];
+								$viewsvn->debug("MK delta+ = " . $end);
+								$change = '{@+' . '+}' . substr($content, $delta['start'], $end - $delta['start']) . '{/@+' . '+}';
+								$content = substr($content, 0, $delta['start']) . $change . substr($content, $end);
+							}
+						}
+					}
+					
+					$this->diff["$index"]["$chunk"][] = array(
+						'line'		=> $content,
+						'act'		=> '+',
+						'oldlineno'	=> '',
+						'newlineno'	=> ++$lines['new']
+					);
+				}
+				else if ($act == '-')
+				{
+					$this->diff["$index"]["$chunk"][] = $thearray = array(
+						'line'		=> $content,
+						'act'		=> '-',
+						'oldlineno'	=> ++$lines['old'],
+						'newlineno'	=> ''
+					);
+					
+					$key = count($this->diff["$index"]["$chunk"]) - 2;
+					$thearray['INDEX'] = $key;
+					
+					array_push($delstack, $thearray);
+				}
+			}
+			// whitespace lines
+			else
+			{
+				if (preg_match('#^Index: (.*?)$#', $line, $matches))
+				{
+					$index = $matches[1];
+					$indexcounter = 1;
+					$chunk = 0;
+					continue;
+				}
+				
+				if ($property)
+				{
+					if (preg_match('#^__*_$#', trim($line)))
+					{
+						$viewsvn->debug("skipping: $line");
+						continue;
+					}
+					
+					if (preg_match('#Name: (.*?)$#', $line, $matches))
+					{
+						$curprop = $matches[1];
+						$viewsvn->debug("prop: $curprop");
+						continue;
+					}
+					else
+					{
+						if (preg_match('#^\s+?\+(.*)#', $line, $matches))
+						{
+							$mode = 'add';
+							$this->diff["$index"]['props']["$curprop"]['add'] .= $matches[1];
+						}
+						else if (preg_match('#^\s+?\-(.*)#', $line, $matches))
+						{
+							$mode = 'del';
+							$this->diff["$index"]['props']["$curprop"]['del'] .= $matches[1];
+						}
+						else if (!preg_match('#^\s+[\+\- ](.*)#', $line) AND trim($line) != '')
+						{
+							$this->diff["$index"]['props']["$curprop"]["$mode"] .= "\n" . $line;
+						}
+						continue;
+					}
+				}
+				
+				$this->diff["$index"]["$chunk"][] = array(
+					'line'		=> '',
+					'act'		=> '',
+					'oldlineno'	=> ++$lines['old'],
+					'newlineno'	=> ++$lines['new']
+				);
+				
+				$delstack = array();
+			}
+		}
+	}
+	
+	/**
+	* Returns the amount of change that occured
+	* between two lines
+	*
+	* @access	private
+	*
+	* @param	string	Old line
+	* @param	string	New line
+	*
+	* @return	array	Difference of positions
+	*/
+	function fetch_diff_extent($old, $new)
+	{
+		global $viewsvn;
+		
+		$start = 0;
+		$min = min(strlen($old), strlen($new));
+		
+		$viewsvn->debug("min1 = $min");
+		
+		while ($start < $min AND $old["$start"] == $new["$start"])
+		{
+			$start++;
+		}
+		
+		$end = -1;
+		$min = $min - $start;
+		
+		$viewsvn->debug("min2 = $min");
+		
+		$viewsvn->debug("checking: " . $old[ strlen($old) + $end ] . ' ==  ' . $new[ strlen($new) + $end ]);
+		
+		while (-$end <= $min AND $old[ strlen($old) + $end ] == $new[ strlen($new) + $end ])
+		{
+			$end--;
+		}
+		
+		return array('start' => $start, 'end' => $end + 1);
+	}
+}
+
 /*=====================================================================*\
 || ###################################################################
 || # $HeadURL$
-- 
2.22.5