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Date: Wed, 20 Apr 2011 12:44:37 -0400
From: Anthony R Fletcher <arif@mail.nih.gov>
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Subject: Re: Suffix alias for README files
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On 20 Apr 2011 at 08:06:25, Bart Schaefer wrote:
> > I can use suffix aliases to display various .txt files.
> > Can I do a similar thing for README files? So the "command"
> > 
> > 	/some/path/README
> > 
> > will really run the command 
> > 
> > 	less /some/path/README
> 
> Depending on your version of zsh, you can do this either with the
> zle-line-finish widget or by replacing the accept-line widget.
> 
> zle-line-finish() {
>     setopt localoptions extendedglob
>     if [[ -z "$PREBUFFER" && "$BUFFER" = ([^[:space:]]#/)#README ]]
>     then BUFFER="less $BUFFER"
>     fi
> }
> zle -N zle-line-finish
> 
> Or
> 
> accept-line() {
>     setopt localoptions extendedglob
>     if [[ -z "$PREBUFFER" && "$BUFFER" = ([^[:space:]]#/)#README ]]
>     then BUFFER="less $BUFFER"
>     fi
>     zle .accept-line "$@"
> }
> zle -N accept-line

Great, the last works for me everywhere and the first works on my newer
machines. Thanks.

> Aside to zsh-workers:
> 
> If no external command is found but a function command_not_found_handler
> exists the shell executes this function with all command line arguments.
> 
> Perhaps "command found but permission denied" should be treated the same
> as "command not found"?  Then one could handle this there as well, and
> not have to mess with widgets.  See also recent discussion of bash/zsh
> differences when the command is literally an empty string.

Thanks for mentioning "command_not_found_handler". I'd missed that one.

		Anthony.