bug#58921: Tab completion hangs in eshell

[Jim Porter]

On 2/23/2023 12:43 PM, Jim Porter wrote:
> Ah, good point. Instead of '(pcomplete-match "\\`--.*=" 0)', I think we 
> want to handle all args starting with "--", but not matching "^--\\([^= 
> \t\n\f]*\\)\\'". The goal is to call 'pcomplete-here*' exactly once per 
> option.
>
> I did this a slightly different way in the updated patch by moving all 
> the "--" cases into a single place (likewise with the "-" options). I 
> think this is easier to follow than before, and makes it more obvious 
> that we're calling 'pcomplete-here*' the right number of times.

Any other thoughts before I merge this patch?