On 09/11/2012 05:09 PM, Bart Schaefer wrote: > On Sep 11, 9:51am, Pascal Wittmann wrote: > } > } I thought of implementing some magic-backspace that removes characters > } until the 'current' completion is ambiguous (i.e. some extended version > } of undo). > } > } The problem I'm facing is that I can not find out if the current > } completion is ambiguous. Is this possible at all? > > This is a rather tricky thing to attempt because the completion system > is a bit more than just a ZLE widget. Completion wants to have control > of the editing process, i.e., you get *either* direct manipulation of > the editor buffer with BUFFER, LBUFFER, RBUFFER, etc., *or* you get the > completion system mucking about in the buffer as it deems necessary, > but not both at once. > [snip] > > Obviously there's a whole lot of stuff I've glossed over here. What > should your widget do if invoked in the middle of a word instead of > at the end? What state do you need to clear before, or set after, > calling the completion widget to avoid entering menu completion or > displaying a listing? And so on. > > Have fun! > Thanks for all these pointers! Now I've a starting point.
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