<pre>
<?php
/**
 * parseModRewrite() Function
 * Created by: Joshua H. (TRUSTAbyss)
 *
 * Usage: parseModRewrite("HTACCESS FILE") will output a multi-dimensional array
 * that can be used to convert to Abyss's URL Rewriting.
 */
 
function parseModRewrite($file)
{
	// Check to see if the file exists before proceeding.
	if (file_exists($file))
	{
		// Initialize the arrays and the $base variable (used for other rules).
		$array = array();
		$rewrite = array();
		$base = '';
 
		// Open the htaccess file to be parsed.
		$file_array = file($file);
 
		foreach ($file_array as $lineNum => $line)
		{
			// Remove whitespace from the beginning and end of $line.
			$line = trim($line);
 
			// Replace whitespace inside RewriteCond/RewriteRule with \s character.
			if (preg_match("/\\\\\s/", $line))
			{
				$line = preg_replace("/\\\\\s/", "\\s", $line);
			}
 
			// Read the current line and replace multiple whitespaces with a single space.
			$line = preg_replace("/\s+/", " ", $line);
 
			// Check for a RewriteBase.
			if (preg_match("/^RewriteBase\s(\/[^\s]*)$/i", $line, $matches))
			{
				// Create the variable for RewriteBase ($matches[1]) and store the permanent.
				$array['base'] = $matches[1];
				$base = $matches[1];
			}
 
			// Check for a RewriteCond.
			if (preg_match("/^RewriteCond\s([^\s]+)\s([^\s]+)(\s\[([^\s]+)\])?$/i", $line, $matches))
			{
				// Create the variables for Variable ($matches[1]), Expression ($matches[2]), and Flag ($matches[4]).
				$array['cond']['var'][] = $matches[1];
				$array['cond']['exp'][] = $matches[2];
				$array['cond']['fla'][] = isset($matches[4]) ? $matches[4] : 0;
 
				// Gather info about the current line (not required).
				$array['cond']['info'][] = 'Line '.($lineNum + 1).': '.$matches[0];
			}
 
			// Check for a RewriteRule.
			if (preg_match("/^RewriteRule\s([^\s]+)\s([^\s]+)(\s\[([^\s]+)\])?$/i", $line, $matches))
			{
				// Ignore the Apache specific RewriteRule that fixes the Internal Dummy Connections.
				if ($matches[2] == '-')
				{
					// Delete the conditions that belong to this RewriteRule.
					if (isset($array['cond']))
					{
						unset($array['cond']);
					}
 
					// Continue to the next RewriteRule.
					continue;
				}
 
				// Create the variables for Regexp ($matches[1]), Replacement ($matches[2]), and Flag ($matches[4]).
				$array['rule']['reg'] = $matches[1];
				$array['rule']['rep'] = $matches[2];
				$array['rule']['fla'] = isset($matches[4]) ? $matches[4] : 0;
 
				// Gather info about the current line (not required).
				$array['rule']['info'] = 'Line '.($lineNum + 1).': '.$matches[0];
 
				// If needed, create a RewriteBase path based on where the htaccess file is located.
				if (!isset($array['base']) && empty($base))
				{
					// Create the variable for RewriteBase and store the permanent.
					$array['base'] = @str_replace('\\', '/', dirname(substr(realpath($file), strlen($_SERVER['DOCUMENT_ROOT']))));
					$base = $array['base'];
				}
 
				// Sort the rewrites in alphabetical order (base, cond, rule)
				ksort($array);
 
				// Since we came to a RewriteRule, we can add the rewrite.
				$rewrite[] = $array;
 
				// We need to delete what was already in the array to add another rewrite.
				$array = array();
 
				// Loop through all the rewrites and change the RewriteBase if needed.
				foreach ($rewrite as $group)
				{
					if (!empty($group['base']))
					{
						$array['base'] = $base;
					}
				}
			}
		}
 
		// Return the array or FALSE if it could not be parsed.
		return (!empty($rewrite)) ? $rewrite : FALSE;
	}
	else // The file does not exist.
	{
		return FALSE; // The function must return FALSE.
	}
}
 
 
 
// Here's an example on using this function.
if ($parsed = parseModRewrite("drive:/path/to/.htaccess"))
{
    print_r($parsed);
}
?>
</pre>