hg diff
diff -r 6bf08ac8dfce test.php
--- a/test.php  Mon Dec 24 12:01:49 2007 +0100
+++ b/test.php  Mon Dec 24 12:03:26 2007 +0100
@@ -12,6 +12,7 @@ function foo() {

 function bar() {
   echo 'bar';
+  echo 'bar1';
   echo 'bar';
   echo 'bar';
   echo 'bar';

hg diff
diff -r 6bf08ac8dfce test.php
--- a/test.php  Mon Dec 24 12:01:49 2007 +0100
+++ b/test.php  Mon Dec 24 12:03:55 2007 +0100
@@ -13,6 +13,7 @@ function bar() {
 function bar() {
   echo 'bar';
   echo 'bar';
+  echo 'bar1';
   echo 'bar';
   echo 'bar';
   echo 'bar';