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Message-ID: <539ABAD6.7040208@redhat.com>
Date: Fri, 13 Jun 2014 10:48:22 +0200
From: Jan Chaloupka <jchaloup@redhat.com>
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To: zsh-workers@zsh.org
Subject: Re: [PATCH] zsh.1,zshall.1: missing b emulation option in man page
References: <20140602150632.16888.49288.stgit@unused-4-157.brq.redhat.com>
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X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22


On 06/02/2014 05:06 PM, jchaloup wrote:
> In COMPATIBILITY section of zsh(all) man page doesn't cover that sh emulation is triggered also if the first letter of the name by which it was invoked is 'b'.
>
> However in the code ./zsh-4.3.10/Src/options.c the intention is clear:
>
> void
> emulate(const char *zsh_name, int fully)
> {
>      char ch = *zsh_name;
>
>      if (ch == 'r')
>          ch = zsh_name[1];
>
>      /* Work out the new emulation mode */
>      if (ch == 'c')
>          emulation = EMULATE_CSH;
>      else if (ch == 'k')
>          emulation = EMULATE_KSH;
>      else if (ch == 's' || ch == 'b')
>          emulation = EMULATE_SH;
>      else
>          emulation = EMULATE_ZSH;
>
>      if (fully)
>          emulation |= EMULATE_FULLY;
>      installemulation();
> }
>
> Signed-off-by: Filip Krska <fkrska@redhat.com>
> [jchaloup@redhat.com: corrected for upstream patch]
> Signed-off-by: Jan Chaloupka <jchaloup@redhat.com>
> ---
>   Doc/Zsh/compat.yo |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Doc/Zsh/compat.yo b/Doc/Zsh/compat.yo
> index bf97fe2..f1be15f 100644
> --- a/Doc/Zsh/compat.yo
> +++ b/Doc/Zsh/compat.yo
> @@ -6,7 +6,7 @@ cindex(ksh compatibility)
>   Zsh tries to emulate bf(sh) or bf(ksh) when it is invoked as
>   tt(sh) or tt(ksh) respectively; more precisely, it looks at the first
>   letter of the name by which it was invoked, excluding any initial `tt(r)'
> -(assumed to stand for `restricted'), and if that is `tt(s)' or `tt(k)' it
> +(assumed to stand for `restricted'), and if that is `tt(b)', `tt(s)' or `tt(k)' it
>   will emulate bf(sh) or bf(ksh).  Furthermore, if invoked as tt(su) (which
>   happens on certain systems when the shell is executed by the tt(su)
>   command), the shell will try to find an alternative name from the tt(SHELL)
>
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