Re: _history_complete_{newer,older} complains on "unmat ched" in _all_labels if globbing

[Vasiliy Ivanov <beelzebubbie.logs@gmail.com>]

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On 10/22/14 17:08, Daniel Shahaf wrote:
> Vasiliy Ivanov wrote on Wed, Oct 22, 2014 at 14:53:37 +0600:
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>> 
>> On 10/22/14 12:43, Bart Schaefer wrote:
>>> On Oct 22,  3:08am, Vasiliy Ivanov wrote: } } % typeset -a somevariable } % somevariable=(1
>>> 2 3) } } % *mevar<_history-complete-older> (completed properly, 2 items suggested - 
>>> 'somevariable=(' and } 'somevariable', guessed because expand prefix suffix style) } } but 
>>> fires hundreds of messages: } _all_labels:39: closing brace expected } ... }
>>> _all_labels:39: unmatched ' } ... } _all_labels:39: unmatched " } } reproducible with any
>>> globbing syntax, zsh 5.0.7
>>> 
>>> There's something else about your configuration that you're not telling us, because I can't
>>> get any completions at all for *mevar unless I "setopt globcomplete", and I don't get any
>>> error messages even with that set.
>>> 
>>> Line 39 of _all_labels is
>>> 
>>> "${(@)argv[4,__pre]}" "${(P@)2}" "${(@)argv[__suf,-1]}" && __ret=0
>>> 
>>> which ends up substituting into something like
>>> 
>>> +_all_labels:39> compadd -1 -V -default- -X '%SCompleting %Uhistory word%u%s' -Q -a 
>>> 'historywords[beg,beg+slice]' +_all_labels:39> __ret=0
>>> 
>>> (though in your case the assignment to __ret is likely not happening)
>>> 
>> 
>> I was able to reproduce with zsh -f and minimal configuration:
>> 
>> % setopt globcomplete % autoload -U compinit % compinit
>> 
>> but *only* with my existing (2300+ records) history file; starting with empty one doesn't
>> throw these messages. Line 39 in my case is «compadd -1 -V -default- -Q -a
>> historywords[beg,beg+slice]»
>> 
>> How can I debug this further (which history records leads to «unmatched» messages)? Any hints
>> will be extremely helpful.
> 
> Have you tried a binary search?
> 
> That is: split the history file to two roughly equal parts and try each one of them to see if
> it reproduces the error.  It is likely that exactly one of the two halves will reproduce the
> error.  Repeat the bifurcation process recursively within that half until you narrow the 
> problem to a single history entry.
> 
> Cheers, Daniel
> 

Thanks for refreshing my knowlegde, but *manual* binary search.. so scary :)
Nevertheless, I reproduced this error from the scratch:

$ zsh -f
% export HISTSIZE=9000
% export HISTFILE=~/.test.history
% export SAVEHIST=$HISTSIZE
% setopt sharehistory
% setopt extendedhistory
% setopt globcomplete
% autoload -U compinit
% compinit
% a='1 2'
% ^D (seems history must be loaded from file to cause error)

$ zsh -f
% export HISTSIZE=9000
…
% compinit
% *olo<^[/>
_all_labels:39: unmatched '
_all_labels:39: unmatched '
% <completed>autoload

adding b="3 4" to history increases error count:
% *olo<^[/>
_all_labels:39: unmatched "
_all_labels:39: unmatched "
_all_labels:39: unmatched '
_all_labels:39: unmatched '
% <completed>autoload

- -- 
Regards,
  Vasiliy Ivanov <beelzebubbie.logs@gmail.com>
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