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Diffstat (limited to 'examples/complete/complete.gnu-longopt')
| -rw-r--r-- | examples/complete/complete.gnu-longopt | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/examples/complete/complete.gnu-longopt b/examples/complete/complete.gnu-longopt new file mode 100644 index 0000000..c55b436 --- /dev/null +++ b/examples/complete/complete.gnu-longopt @@ -0,0 +1,43 @@ +# +# Originally from: +# +#Message-ID: <3B13EC65.179451AE@wanadoo.fr> +#Date: Tue, 29 May 2001 20:37:25 +0200 +#From: Manu Rouat <emmanuel.rouat@wanadoo.fr> +#Subject: [bash] Universal command options completion? +# +# +#In the recent versions of bash (after 2.04) programmable +#completion is available. A useful completion function +#is , for a particular command, to enumerate all flags +#that can be used in the command. Now, most GNU unix +#commands have so-called 'long options' for example: +# +#ls --color=always --no-group --size +# +#and these are all listed when you issue a '--help' flag. +#So the idea is to use that, then parse the output of the +#'--help' and reinject this to compgen. The basis of the +#following 'universal' completion funtion was the _configure_func' +#written by Ian McDonnald (or is it Chet Ramey ?) +#A dedicated function will always be better, but this is quite +#convenient. I chose to use 'long options' because they are +#easy to parse and explicit too (it's the point I guess...) +#Lots of room for improvement ! + +_longopt_func () +{ + case "$2" in + -*) ;; + *) return ;; + esac + + case "$1" in + \~*) eval cmd=$1 ;; + *) cmd="$1" ;; + esac + COMPREPLY=( $("$cmd" --help | sed -e '/--/!d' -e 's/.*--\([^ ]*\).*/--\1/'| \ +grep ^"$2" |sort -u) ) +} + +complete -o default -F _longopt_func ldd wget bash id info # some examples that work |