From ccfdbfca588577a751986db6e27f5eea63d1e8c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <hyd_danmar@users.sourceforge.net>
Date: Fri, 20 Mar 2009 18:50:11 +0100
Subject: [PATCH] improved Token::tokAt to handle negative argument too

---
 src/token.cpp | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/token.cpp b/src/token.cpp
index 80167d98e..33883f9ed 100644
--- a/src/token.cpp
+++ b/src/token.cpp
@@ -114,10 +114,14 @@ void Token::replace(Token *replaceThis, Token *start, Token *end)
 const Token *Token::tokAt(int index) const
 {
     const Token *tok = this;
-    while (index > 0 && tok)
+    int num = abs(index);
+    while (num > 0 && tok)
     {
-        tok = tok->next();
-        --index;
+        if (index > 0)
+            tok = tok->next();
+        else
+            tok = tok->previous();
+        --num;
     }
     return tok;
 }
@@ -125,10 +129,14 @@ const Token *Token::tokAt(int index) const
 Token *Token::tokAt(int index)
 {
     Token *tok = this;
-    while (index > 0 && tok)
+    int num = abs(index);
+    while (num > 0 && tok)
     {
-        tok = tok->next();
-        --index;
+        if (index > 0)
+            tok = tok->next();
+        else
+            tok = tok->previous();
+        --num;
     }
     return tok;
 }