Re: GLOB_COMPLETE and numbered directories

[Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>]

Bart Schaefer wrote on Thu, Mar 19, 2015 at 18:02:10 -0700:
> On Mar 19,  9:06am, Bart Schaefer wrote:
> }
> } It's supposed to be sufficient to "setopt completeinword" to get the
> } behavior you want, and indeed it works if I literally type out
> } 
> } % cat 1a/iota
> } 
> } and then move the cursor to 1<C>a/iota before pressing TAB.  However,
> } for some reason this doesn't happen when "continuing an in-progress
> } completion" with a second TAB.  I believe that's because the second
> } tab just regenerates the listing with the same pattern as on the
> } first tab, and that's not sufficient to disambiguate.
> 
> So ... in the case of moving the cursor to after the "1" and pressing
> TAB, $PREFIX = "1".  But in the case of pressing the second TAB after
> completing to "1a/iota", $PREFIX = "1a/iota" even though the cursor
> is not at the end of the word.
> 
> The fix is therefore something like this, though I don't know if I have
> handled completeinword correctly (as in, I think this generates matches
> on a second TAB even when completeinword is not set, but I don't think
> anyone would object to that?).
> 

'cat 1<C>a/iota<TAB>' behaves (with the patch) as follows:

- If this is the first tab and completeinword set: completes
- If this is the first tab and completeinword unset: doesn't complete
- If this is the second tab: completes

I think that's fine because, in the 'this is the second tab and
completeinword is unset' case, the _first_ tab was at the 'cat 1/i<C>'
case, so logically the overall completion that's happening here _is_
"completion at end of word", not in middle of word.

Thanks,

Daniel

> diff --git a/Completion/Base/Core/_main_complete b/Completion/Base/Core/_main_complete
> index d6a1007..a89bc84 100644
> --- a/Completion/Base/Core/_main_complete
> +++ b/Completion/Base/Core/_main_complete
> @@ -68,6 +68,15 @@ if [[ "$compstate[insert]" = tab* ]]; then
>    compstate[insert]="${compstate[insert]//tab /}"
>  fi
>  
> +# Second attempt at GLOB_COMPLETE
> +
> +if [[ "$compstate[pattern_match]" = "*" &&
> +      "$_lastcomp[unambiguous]" = "$PREFIX" &&
> +      -n "$_lastcomp[unambiguous_cursor]" ]]; then
> +  integer upos="$_lastcomp[unambiguous_cursor]"
> +  PREFIX="$PREFIX[1,upos-1]*$PREFIX[upos,-1]"
> +fi
> +
>  # Special completion contexts after `~' and `='.
>  
>  if [[ -z "$compstate[quote]" ]]; then