GNU bug report logs - #1853
Trouble with gzipped info files on Windows

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Subject: bug#1853: marked as done (Trouble with gzipped info files on Windows)
Date: Sat, 17 Jan 2009 13:20:03 +0000

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Your message dated Sat, 17 Jan 2009 15:11:14 +0200
with message-id <utz7y2i31.fsf <at> gnu.org>
and subject line Re: bug#1853: Trouble with gzipped info files on Windows
has caused the Emacs bug report #1853,
regarding Trouble with gzipped info files on Windows
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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From: "Juanma Barranquero" <lekktu <at> gmail.com>
To: "Emacs Bug Tracker" <submit <at> debbugs.gnu.org>
Subject: Trouble with gzipped info files on Windows
Date: Sat, 10 Jan 2009 22:49:05 +0100

Package: emacs,w32
Version: 23.0.60

Gzipping normal CRLF info files on Windows, there's currently two problems:

  1.- For all info files:

    cd info
    gzip efaq
    emacs -Q --eval "(progn (set-language-environment \"UTF-8\") (info
\"(efaq)\")"

    The info pages are decoded with a -unix coding system, so lines
contain spurious ^M characters.

    It does depend on setting the language environment (on the command
line or .emacs). For example, with my default "Spanish" environment,
it does not happen; but if I pass "Spanish" in the command above, the
info pages are erroneously decoded as info-latin-1-unix.

    The presence of NUL characters (see fixed bug#876) is irrelevant.
efaq does contain NUL, but the same bug happens with gnus, which does
not.

 2.- Additionally, for info nodes that do NOT contain a Top node:

    cd info
    emacs -Q --eval "(progn (set-language-environment \"UTF-8\") (info
\"(ccmode)\")"
    ;; works OK.

    gzip ccmode*
    emacs -Q --eval "(progn (set-language-environment \"UTF-8\") (info
\"(ccmode)\")"
    ;;  "No such node or anchor: Top"

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Juanma Barranquero <lekktu <at> gmail.com>,
        1853-done <at> debbugs.gnu.org
Cc: emacs-devel <at> gnu.org
Subject: Re: bug#1853: Trouble with gzipped info files on Windows
Date: Sat, 17 Jan 2009 15:11:14 +0200

> Date: Sat, 10 Jan 2009 22:49:05 +0100
> From: "Juanma Barranquero" <lekktu <at> gmail.com>
> Cc: 
> 
> Gzipping normal CRLF info files on Windows, there's currently two problems:
> 
>   1.- For all info files:
> 
>     cd info
>     gzip efaq
>     emacs -Q --eval "(progn (set-language-environment \"UTF-8\") (info \"(efaq)\"))"
> 
>     The info pages are decoded with a -unix coding system, so lines
> contain spurious ^M characters.
> 
>     It does depend on setting the language environment (on the command
> line or .emacs). For example, with my default "Spanish" environment,
> it does not happen; but if I pass "Spanish" in the command above, the
> info pages are erroneously decoded as info-latin-1-unix.

This happened because, on DOS and Windows, file-coding-system-alist
includes the association `("" . find-buffer-file-type-coding-system)',
and find-buffer-file-type-coding-system was not ready to see an
argument whose `car' does not appear to exist because jka-compr
removed the .gz extension from its name.

I fixed find-buffer-file-type-coding-system to work correctly in this
case.

>  2.- Additionally, for info nodes that do NOT contain a Top node:
> 
>     cd info
>     emacs -Q --eval "(progn (set-language-environment \"UTF-8\") (info
> \"(ccmode)\")"
>     ;; works OK.
> 
>     gzip ccmode*
>     emacs -Q --eval "(progn (set-language-environment \"UTF-8\") (info
> \"(ccmode)\")"
>     ;;  "No such node or anchor: Top"

This is yet another separate bug: set-language-environment always sets
default-buffer-file-coding-system to *-unix.  See my other message a
few minutes ago.

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