Re: [PATCH] trap: Implement POSIX.1-2008 trap reset behaviour (#2)

[Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>]

Jonathan Perkin <jperkin@xxxxxxxxxx> wrote:
> Clarifies a couple of issues with the previous patch, and expands on
> the rationale in the commit message.  Sorry for the noise -- jperkin
> 
> POSIX.1-2008 for trap adds the following behaviour:
> 
>    If the first operand is an unsigned decimal integer, the shell shall
>    treat all operands as conditions, and shall reset each condition to
>    the default value.
> 
> The interpretation of this behaviour differs among other shells.  In the
> case where the first operand is an invalid signo:
> 
>  bash-4.3.39(1), zsh-5.1.1:
> 
>    $ trap echo 1 2 3
>    $ trap 100 1 2
>    $ trap
>    trap -- '100' SIGHUP
>    trap -- '100' SIGINT
>    trap -- 'echo' SIGQUIT

So dash's behaviour is the same as bash.  I'm not changing this.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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