path: root/help.h
diff options
authorJohannes Schindelin <>2008-08-31 13:50:23 (GMT)
committerJunio C Hamano <>2008-08-31 17:14:58 (GMT)
commit8af84dadb142f7321ff0ce8690385e99da8ede2f (patch)
treee47023679099de35b18da39c3b1c89efc0dd2c3a /help.h
parenta1184d85e8752658f02746982822f43f32316803 (diff)
git wrapper: DWIM mistyped commands
This patch introduces a modified Damerau-Levenshtein algorithm into Git's code base, and uses it with the following penalties to show some similar commands when an unknown command was encountered: swap = 0, insertion = 1, substitution = 2, deletion = 4 A typical output would now look like this: $ git sm git: 'sm' is not a git-command. See 'git --help'. Did you mean one of these? am rm The cut-off is at similarity rating 6, which was empirically determined to give sensible results. As a convenience, if there is only one candidate, Git continues under the assumption that the user mistyped it. Example: $ git reabse WARNING: You called a Git program named 'reabse', which does not exist. Continuing under the assumption that you meant 'rebase' [...] Signed-off-by: Johannes Schindelin <> Signed-off-by: Alex Riesen <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'help.h')
1 files changed, 1 insertions, 1 deletions
diff --git a/help.h b/help.h
index 3f1ae89..5fc7892 100644
--- a/help.h
+++ b/help.h
@@ -5,7 +5,7 @@ struct cmdnames {
int alloc;
int cnt;
struct cmdname {
- size_t len;
+ size_t len; /* also used for similarity index in help.c */
char name[FLEX_ARRAY];
} **names;