From: "Mikael Magnusson" <mikachu@gmail.com>
To: "Zsh hackers list" <zsh-workers@sunsite.dk>
Subject: Re: Weird error message when using bash or ksh form of array initialization
Date: Sun, 24 Aug 2008 18:13:49 +0200 [thread overview]
Message-ID: <237967ef0808240913p54929e56k141a28b0f1176c7a@mail.gmail.com> (raw)
In-Reply-To: <6cd6de210808240905s40c8c86ch4766b711e87ffde5@mail.gmail.com>
2008/8/24 Rocky Bernstein <rocky.bernstein@gmail.com>:
> When I run this (erroneous?) program:
>
> typeset -a fd=()
> typeset -a sources
> typeset -i xx
>
> I get a weird error message:
>
> typeset:3: maximum nested function level reached
>
> Note that neither of these give an error:
>
> typeset -a fd=()
> typeset -a sources
>
> or
>
> typeset -a fd
> typeset -a sources
> typeset -i xx
>
> or
>
> typeset -a fd
> fd=()
> typeset -a sources
> typeset -i xx
>
> Somehow fd= is treated as a function which is indicated out by adding
> a request to print out fd=:
>
> typeset -a fd=()
> typeset -a sources
> typeset -i xx
> declare -f fd=
>
> Which reports:
> typeset:3: maximum nested function level reached
> 'fd=' () {
> typeset -a sources
> }
>
> Can someone explain what's going on?
>
> Since both bash and ksh allow an array initialization via the form
> used above, it increases the chance of getting this weird error
> message.
>
> Thanks.
I think you need to quote the arguments for typeset,
% typeset -a 'fd=()'
typeset: fd: can't assign initial value for array
Also,
% typeset -a fd=() {}
% which typeset
typeset () {
}
% which -- -a
-a () {
}
The whole thing probably gets interpreted as a function definition of
the form
name1 name2 name3 () { name1 foo bar }; name1
The function then ends up calling itself recursively which zsh protects
itself against by erroring out after some iterations, no idea how many.
--
Mikael Magnusson
next prev parent reply other threads:[~2008-08-24 16:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-24 16:05 Rocky Bernstein
2008-08-24 16:13 ` Mikael Magnusson [this message]
2008-08-24 20:32 ` Bart Schaefer
2008-08-25 0:12 ` Rocky Bernstein
2008-08-25 0:40 ` Mikael Magnusson
2008-08-25 1:02 ` Rocky Bernstein
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