Consider two files: file1: 1a 2 3a 4 5 6
file2: 1b 2 3b 4 5 6 7 With diff (GNU diffutils) 3.3 under Debian/unstable, I get: $ diff -u -I3 file1 file2 --- file1 2014-02-24 12:58:12.485367096 +0100 +++ file2 2014-02-24 12:58:08.879933593 +0100 @@ -1,6 +1,6 @@ -1a +1b 2 -3a +3b 4 5 6 @@ -4,3 +4,4 @@ 4 5 6 +7 i.e. with overlapping chunks. Ditto with the latest patches. Here I would expect: --- file1 2014-02-24 12:58:12.485367096 +0100 +++ file2 2014-02-24 12:58:08.879933593 +0100 @@ -1,6 +1,7 @@ -1a +1b 2 -3a +3b 4 5 6 +7 Note that if the 3rd line is the same in both files, one gets only one chunk: @@ -1,6 +1,7 @@ -1a +1b 2 3 4 5 6 +7 so that getting 2 chunks with -I is definitely unexpected. -- Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
