Re: [PATCH] Completion: audit 'compset -P' calls to use shortest match where applicable, plus random drive-by tweaks.

[Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>]

Jun T. wrote on Thu, Oct 27, 2016 at 14:58:04 +0900:
> With this, the following completes nothing:
> 
> $ head -n -5<TAB>
> 
> Same for _tail.

Thanks for the report; is this better?

diff --git a/Completion/Unix/Command/_head b/Completion/Unix/Command/_head
index c76cce3..75fc1f0 100644
--- a/Completion/Unix/Command/_head
+++ b/Completion/Unix/Command/_head
@@ -32,7 +32,7 @@ case $state in
     sign='sign:sign:((-\:"print all but the last specified bytes/lines"'
     sign+=' +\:"print the first specified bytes/lines (default)"))'
     digit='digits:digit:(0 1 2 3 4 5 6 7 8 9)'
-    if compset -P '[0-9]##'; then
+    if compset -P '(-|+|)[0-9]##'; then
       _alternative $mlt $digit && ret=0
     elif [[ -z $PREFIX ]]; then
       _alternative $sign $digit && ret=0
diff --git a/Completion/Unix/Command/_tail b/Completion/Unix/Command/_tail
index 89e9cfb..4e64226 100644
--- a/Completion/Unix/Command/_tail
+++ b/Completion/Unix/Command/_tail
@@ -56,7 +56,7 @@ case $state in
     sign='signs:sign:((+\:"start at the specified byte/line"'
     sign+=' -\:"output the last specified bytes/lines (default)"))'
     digit='digits:digit:(0 1 2 3 4 5 6 7 8 9)'
-    if compset -P '[0-9]##'; then
+    if compset -P '(-|+|)[0-9]##'; then
       _alternative $mlt $digit && ret=0
     elif [[ -z $PREFIX ]]; then
       _alternative $sign $digit && ret=0