can combination of zstyle -e and -a cause infinite loop?

can combination of zstyle -e and -a cause infinite loop?

[Amm]

Hello,


I got this curious question when trying to find
solution of something else.
(based on Bart's solution in some other e-mail)


if I use zstyle like this:


zstyle -e ':completion:*' matcher-list \

    'zstyle -a ":completion:$curcontext" matcher-list reply'


OR

if I write something like this in two lines:

zstyle -e ':completion:*' matcher-list \

    'zstyle -a ":completion:b" matcher-list reply'
zstyle -e ':completion:b' matcher-list \

    'zstyle -a ":completion:a" matcher-list reply'


Will any of the two cases above cause infinite loops?

Or zsh will detect these loops?


Just curious to know, I have not tried! :fear:


Amm

Re: can combination of zstyle -e and -a cause infinite loop?

[Bart Schaefer]

On Mar 4,  4:45pm, Amm wrote:
}
} Will any of the two cases above cause infinite loops?
} 
} Or zsh will detect these loops?

They'll be detected.  Testing either of the mutually recurisive styles
will always "fail":

    zstyle -a sets the array to empty but returns 0
    zstyle -s sets the scalar to empty but returns 0
    zstyle -b sets the scalar to "no" and returns 1
    zstyle -m returns 1
    zstyle -t returns 1
    zstyle -T returns 0

(This might differ if the recursive call is not the only part of one
of the eval'd strings that assigns to $reply.)

All of them print to stderr:

    zsh: job table full or recursion limit exceeded

Re: can combination of zstyle -e and -a cause infinite loop?

[Amm]

> ----- Original Message -----

> From: Bart Schaefer <schaefer@brasslantern.com>
> 
> They'll be detected.  Testing either of the mutually recurisive styles
> will always "fail":
> 
> All of them print to stderr:
>     zsh: job table full or recursion limit exceeded

Thanks again for clarification, that helped.
(for both my e-mails that you replied to)