From 0f9ef4d8b3c0c6c77f95d6035ee1ab2f2473abb3 Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Fri, 18 Mar 2005 08:17:25 +0000
Subject: [PATCH] Base tokenizing parser in place

---
 template.php | 50 ++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 2 deletions(-)

diff --git a/template.php b/template.php
index 8328331..f9baf46 100644
--- a/template.php
+++ b/template.php
@@ -396,11 +396,57 @@ class DB_Template
 		$location_end = -1;
 		
 		// Tag data
-		$tag_start = '<if condition=\\"';
-		$tag_start_end = '\\">';
+		$tag_start = '<if condition=\"';
+		$tag_start_end = '\">';
 		$tag_else = '<else />';
 		$tag_end = '</if>';
 		
+		$stack = array();
+		
+		for ($i = 0; $i < strlen($template); $i++)
+		{
+			// get the current character
+			$char = $template[ $i ];
+			
+			// is the char equal to the first character of the expression?
+			if ($char == substr($tag_start, 0, 1))
+			{
+				// we've found ourselves a condition!
+				if (substr($template, $i, strlen($tag_start)) == $tag_start)
+				{
+					// where do we end the condition
+					$end = strpos($template, $tag_start_end, $i);
+				//	echo " >>>>>> " . $end . " >>>>>> ";
+					//echo $template[ $end - 2 ] . $template[ $end - 1 ] . $template[ $end ] . $template[ $end + 1 ] . $template[ $end + 2 ] . " (" . $template[ $end ] . ") ";
+					$end += strlen($tag_start_end);
+					//echo " { " . $template[ $end - 1 ] . " } ";
+					
+					// extract the condition
+					$condition = substr($template, $i, $end);
+					
+					// echo $condition . "||||||";
+					
+					// complete the open
+					array_push($stack, /*array('pos' => $i, 'expr' => $condition)*/ $i);
+				}
+				// do we have an end?
+				// make sure that it's the whole tag
+				else if (substr($template, $i, strlen($tag_end)) == $tag_end)
+				{
+					// calculate the end of the tag
+					$end = $i + strlen($tag_end);
+					
+					// find the most recently opened condition
+					$last = array_pop($stack);
+					
+					// get the full condition
+					$fullspread = substr($template, $last, $end - $last);
+					echo "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< $fullspread >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>";
+				}
+			}
+		}
+		exit;
+		
 		while (1)
 		{
 			// Finds the start tag: starts looking through the haystack one position
-- 
2.22.5