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To: Stefan Monnier <monnier@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
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Stefan Monnier <monnier@HIDDEN> writes:
> As I said it "knows how to decompress the main ones, yes".
If you remove all the duplicates, it boils down to this list:
(".Z" . "uncompress")
(".Y" . "unyabba")
(".gz" . "gunzip")
(".z" . "gunzip")
(".bz2" . ("bzip2" "-dc"))
(".xz" . "unxz")
The only one that jka-compr doesn't handle is "unyabba", which I've
never heard of. Neither has Debian, apparently...
[larsi@stories /tmp]$ apt-cache search yabba
> It doesn't do all of them because ... I don't know why. My guess is
> that there's a subtle risk of jka-compr applying when it shouldn't, so
> we prefer to only use it when we're pretty sure the name implies it is
> a compressed file.
My guess is that this is just stuff that somebody forgot to remove once
jka-compr was written. :-)
>> So I would suggest writing some code in jka-compr that would allow
>> jka-compr to look for compressed files, too (given a regexp), and then
>> etags could use that, and info.el could be converted (after Emacs 24.1)
>> to use that, too.
>
> That sounds right.
Ok, I'll take a whack at adding the "search for compressed files"
functionality to jka-compr, and fixing etags.el by using that.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Lars Magne Ingebrigtsen <larsi@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
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Date: Fri, 07 Oct 2011 09:29:06 -0400
In-Reply-To: <m3sjn5umik.fsf@HIDDEN> (Lars Magne Ingebrigtsen's
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>>> (".info.xz" . "unxz")
>>> (".info" . nil)
>>> ("-info.Z" . "uncompress")
>>> ("-info.Y" . "unyabba")
>>
>> Yes.
>>
>>> etc etc etc. Is this even necessary in Info?
>>
>> It's just as necessary as it is for etags: without it, Info won't find
>> the compressed files.
>>
>>> Doesn't jka-compr know all about this already?
>>
>> jka-compr knows how to decompress the main ones, yes. But not all of
>> them, and (more importantly) it doesn't know how to look for them.
> Sorry; I was unclear. I meant: Doesn't jka-compr know how to uncompress
> all these files already?
As I said it "knows how to decompress the main ones, yes".
> And if not -- why not?
It doesn't do all of them because ... I don't know why. My guess is
that there's a subtle risk of jka-compr applying when it shouldn't, so
we prefer to only use it when we're pretty sure the name implies it is
a compressed file.
> Finding the files is a different issue, and since the file name list
> contains "info" in all the names, there isn't much potential for reuse
> by etags.
Wholesale reuse, no, indeed. But the compression-extension part, yes.
> So I would suggest writing some code in jka-compr that would allow
> jka-compr to look for compressed files, too (given a regexp), and then
> etags could use that, and info.el could be converted (after Emacs 24.1)
> to use that, too.
That sounds right.
Stefan
bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
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To: Stefan Monnier <monnier@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
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Stefan Monnier <monnier@HIDDEN> writes:
>> (".info.xz" . "unxz")
>> (".info" . nil)
>> ("-info.Z" . "uncompress")
>> ("-info.Y" . "unyabba")
>
> Yes.
>
>> etc etc etc. Is this even necessary in Info?
>
> It's just as necessary as it is for etags: without it, Info won't find
> the compressed files.
>
>> Doesn't jka-compr know all about this already?
>
> jka-compr knows how to decompress the main ones, yes. But not all of
> them, and (more importantly) it doesn't know how to look for them.
Sorry; I was unclear. I meant: Doesn't jka-compr know how to uncompress
all these files already?
And if not -- why not?
Finding the files is a different issue, and since the file name list
contains "info" in all the names, there isn't much potential for reuse
by etags.
So I would suggest writing some code in jka-compr that would allow
jka-compr to look for compressed files, too (given a regexp), and then
etags could use that, and info.el could be converted (after Emacs 24.1)
to use that, too.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
Full text available.
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From: Stefan Monnier <monnier@HIDDEN>
To: Lars Magne Ingebrigtsen <larsi@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
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>>> I think that the solution should be that etags.el cares about looking
>>> for possible compressed versions of file names contained in TAGS file.
>> Please share the code with info.el which does that for its files.
> Are you thinking of this bit?
> (defvar Info-suffix-list
> ;; The MS-DOS list should work both when long file names are
> ;; supported (Windows 9X), and when only 8+3 file names are available.
> (if (eq system-type 'ms-dos)
> '( (".gz" . "gunzip")
> (".z" . "gunzip")
> [...]
> '( (".info.Z" . "uncompress")
> (".info.Y" . "unyabba")
> (".info.gz" . "gunzip")
> (".info.z" . "gunzip")
> (".info.bz2" . ("bzip2" "-dc"))
> (".info.xz" . "unxz")
> (".info" . nil)
> ("-info.Z" . "uncompress")
> ("-info.Y" . "unyabba")
Yes.
> etc etc etc. Is this even necessary in Info?
It's just as necessary as it is for etags: without it, Info won't find
the compressed files.
> Doesn't jka-compr know all about this already?
jka-compr knows how to decompress the main ones, yes. But not all of
them, and (more importantly) it doesn't know how to look for them.
Stefan
bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
Full text available.
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From: Lars Magne Ingebrigtsen <larsi@HIDDEN>
To: Stefan Monnier <monnier@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
In-Reply-To: <jwvvcsw5n8z.fsf-monnier+emacs@HIDDEN> (Stefan Monnier's message
of "Tue, 13 Sep 2011 14:09:49 -0400")
Date: Fri, 07 Oct 2011 00:05:58 +0200
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Stefan Monnier <monnier@HIDDEN> writes:
>> I think that the solution should be that etags.el cares about looking
>> for possible compressed versions of file names contained in TAGS file.
>
> Please share the code with info.el which does that for its files.
Are you thinking of this bit?
(defvar Info-suffix-list
;; The MS-DOS list should work both when long file names are
;; supported (Windows 9X), and when only 8+3 file names are available.
(if (eq system-type 'ms-dos)
'( (".gz" . "gunzip")
(".z" . "gunzip")
[...]
'( (".info.Z" . "uncompress")
(".info.Y" . "unyabba")
(".info.gz" . "gunzip")
(".info.z" . "gunzip")
(".info.bz2" . ("bzip2" "-dc"))
(".info.xz" . "unxz")
(".info" . nil)
("-info.Z" . "uncompress")
("-info.Y" . "unyabba")
etc etc etc. Is this even necessary in Info? Doesn't jka-compr know
all about this already?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
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From: Lars Magne Ingebrigtsen <larsi@HIDDEN>
To: Francesco =?iso-8859-1?Q?Potort=EC?= <pot@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
In-Reply-To: <E1R3RW1-000613-1i@HIDDEN> ("Francesco
\=\?iso-8859-1\?Q\?Potort\=EC\=22's\?\=
message of "Tue, 13 Sep 2011 13:51:01 +0200")
Date: Tue, 13 Sep 2011 20:24:36 +0200
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Francesco Potort=EC <pot@HIDDEN> writes:
> Etags manages compressed files so that the generated TAGS file contains
> the uncompressed file name, independently of whether the file on disk is
> compressed or not.
If etags just put the real file name (i.e., foo.el.gz) into the TAGS
file, then Emacs would do the right thing automatically.
But having etags.el look for compressed versions of the files
automatically would probably be even nicer.
--=20
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
owner <at> debbugs.gnu.org, bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Francesco =?iso-8859-1?Q?Potort=EC?= <pot@HIDDEN>
Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files
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Date: Tue, 13 Sep 2011 14:09:49 -0400
In-Reply-To: <E1R3RW1-000613-1i@HIDDEN> ("Francesco
\=\?iso-8859-1\?Q\?Potort\=EC\=22's\?\=
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> I seem to remember that in past times Emacs was able to do that when
> jka-compr was loaded, but I may be wrong.
IIRC the unbundled version of jka-compr included such a feature, but not
the one bundled with Emacs.
> I think that the solution should be that etags.el cares about looking
> for possible compressed versions of file names contained in TAGS file.
Please share the code with info.el which does that for its files.
Stefan
owner <at> debbugs.gnu.org, bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
Full text available.Received: (at 2807) by debbugs.gnu.org; 13 Sep 2011 11:56:04 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Sep 13 07:56:04 2011 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1R3Rat-0007iU-St for submit <at> debbugs.gnu.org; Tue, 13 Sep 2011 07:56:04 -0400 Received: from blade3.isti.cnr.it ([194.119.192.19]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <pot@HIDDEN>) id 1R3Rar-0007i4-F8 for 2807 <at> debbugs.gnu.org; Tue, 13 Sep 2011 07:56:02 -0400 Received: from tucano.isti.cnr.it (tucano.isti.cnr.it [146.48.81.102]) by mx.isti.cnr.it (PMDF V6.5-x5 #31826) with ESMTPSA id <01O60955UQCUXJFIXO@HIDDEN> for 2807 <at> debbugs.gnu.org; Tue, 13 Sep 2011 13:51:01 +0200 (MEST) Received: from pot by tucano.isti.cnr.it with local (Exim 4.76) (envelope-from <pot@HIDDEN>) id 1R3RW1-000613-1i; Tue, 13 Sep 2011 13:51:01 +0200 Date: Tue, 13 Sep 2011 13:51:01 +0200 From: Francesco =?utf-8?Q?Potort=C3=AC?= <pot@HIDDEN> Subject: Re: bug#2807: Subject: 23.0.90; etags can't access .el.gz files In-reply-to: <m3y5xuengl.fsf@HIDDEN> To: Lars Magne Ingebrigtsen <larsi@HIDDEN> Message-id: <E1R3RW1-000613-1i@HIDDEN> Organization: X-INSM-ip-source: 146.48.81.102 Auth Done X-fingerprint: 4B02 6187 5C03 D6B1 2E31 7666 09DF 2DC9 BE21 6115 References: <d2afcfda0903272039h5546288qdfefef20b82bb91c@HIDDEN> <m3y5xuengl.fsf@HIDDEN> X-Spam-Score: -2.9 (--) X-Debbugs-Envelope-To: 2807 Cc: MON KEY <monkey@HIDDEN>, 2807 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -2.9 (--) >MON KEY <monkey@HIDDEN> writes: > >> in dir /usr/share/emacs/23.0.90/lisp >> M-x shell: >> bash-3.1$ etags ./*.el.gz >> >> when true: >> (equal tags-file-name "/usr/share/emacs/23.0.90/lisp/TAGS") >> >> M-x tags-search >> tags-search >> >> I get this error: >> `next-file: Opening input file: no such file or directory, >> /usr/share/emacs/23.0.90/lisp/abbrev.el' > >I can confirm that this bug is still present in Emacs 24. > >The problem is simply that etags puts the non-gz file name in the TAGS >file. Like this: > >font-core.el,502 > >Which means that Emacs isn't able to find the font-core.el.gz file. Etags manages compressed files so that the generated TAGS file contains the uncompressed file name, independently of whether the file on disk is compressed or not. The rationale for this behaviour is that the TAGS file does not contain info about the compression status of a file. This makes sense in the case that when you use an editor you either have an uncompressed file on disk or your editor is capable of finding the compressed version given the uncompressed name. I seem to remember that in past times Emacs was able to do that when jka-compr was loaded, but I may be wrong. I think that the solution should be that etags.el cares about looking for possible compressed versions of file names contained in TAGS file. By the way, the xz compressor should be added to the list of known compressors in etags.c, and the doc strings, man page and info updated accordingly.
owner <at> debbugs.gnu.org, bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
Full text available.Lars Magne Ingebrigtsen <larsi@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 2807) by debbugs.gnu.org; 11 Sep 2011 22:21:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Sep 11 18:21:57 2011 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1R2sPT-00087K-U2 for submit <at> debbugs.gnu.org; Sun, 11 Sep 2011 18:21:56 -0400 Received: from hermes.netfonds.no ([80.91.224.195]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <larsi@HIDDEN>) id 1R2sPR-000877-GD for 2807 <at> debbugs.gnu.org; Sun, 11 Sep 2011 18:21:54 -0400 Received: from cm-84.215.51.58.getinternet.no ([84.215.51.58] helo=stories.gnus.org) by hermes.netfonds.no with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from <larsi@HIDDEN>) id 1R2sLB-0002eO-8R; Mon, 12 Sep 2011 00:17:29 +0200 From: Lars Magne Ingebrigtsen <larsi@HIDDEN> To: MON KEY <monkey@HIDDEN> Subject: Re: Subject: 23.0.90; etags can't access .el.gz files In-Reply-To: <d2afcfda0903272039h5546288qdfefef20b82bb91c@HIDDEN> (MON KEY's message of "Fri, 27 Mar 2009 23:39:58 -0400") Date: Mon, 12 Sep 2011 00:14:18 +0200 Message-ID: <m3y5xuengl.fsf@HIDDEN> References: <d2afcfda0903272039h5546288qdfefef20b82bb91c@HIDDEN> User-Agent: Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.50 (gnu/linux) X-Now-Playing: Alasdair Roberts's _Spoils_: "Under No Enchantment (But My Own)" MIME-Version: 1.0 Content-Type: text/plain X-MailScanner-ID: 1R2sLB-0002eO-8R X-Netfonds-MailScanner: Found to be clean X-Netfonds-MailScanner-From: larsi@HIDDEN MailScanner-NULL-Check: 1316384249.35356@x4AV6V60bOC0SeoBh1bScQ X-Spam-Status: No X-Spam-Score: -2.7 (--) X-Debbugs-Envelope-To: 2807 Cc: 2807 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -2.7 (--) MON KEY <monkey@HIDDEN> writes: > in dir /usr/share/emacs/23.0.90/lisp > M-x shell: > bash-3.1$ etags ./*.el.gz > > when true: > (equal tags-file-name "/usr/share/emacs/23.0.90/lisp/TAGS") > > M-x tags-search > tags-search > > I get this error: > `next-file: Opening input file: no such file or directory, > /usr/share/emacs/23.0.90/lisp/abbrev.el' I can confirm that this bug is still present in Emacs 24. The problem is simply that etags puts the non-gz file name in the TAGS file. Like this: font-core.el,502 Which means that Emacs isn't able to find the font-core.el.gz file. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog http://lars.ingebrigtsen.no/
owner <at> debbugs.gnu.org, bug-gnu-emacs@HIDDEN:bug#2807; Package emacs.
Full text available.Glenn Morris <rgm@HIDDEN>
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Subject: Subject: 23.0.90; etags can't access .el.gz files
From: MON KEY <monkey@HIDDEN>
To: emacs-pretest-bug@HIDDEN
Content-Type: text/plain; charset=UTF-8
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in dir /usr/share/emacs/23.0.90/lisp
M-x shell:
bash-3.1$ etags ./*.el.gz
when true:
(equal tags-file-name "/usr/share/emacs/23.0.90/lisp/TAGS")
M-x tags-search
tags-search
I get this error:
`next-file: Opening input file: no such file or directory,
/usr/share/emacs/23.0.90/lisp/abbrev.el'
When all *.el.gz are uncompressed there isn't a problem :)
However if any of the .el files are *.el.gz i get the error.
Can tags open the (now) default .el.gz files in ~emacs/*/lisp/
Shouldn't emacs decompress these files automatically on the fly?
;;; ==============================
In GNU Emacs 23.0.90.2 (i486-slackware-linux-gnu, GTK+ Version 2.12.12)
of 2009-02-26 on slaptop
Windowing system distributor `The X.Org Foundation', version 11.0.10402000
configured using `configure '--prefix=/usr' '--sysconfdir=/etc'
'--localstatedir=/var' '--program-prefix=' '--program-suffix='
'--mandir=/usr/man' '--infodir=/usr/info' '--enable-static=no'
'--enable-shared=yes' '--with-x' '--with-x-toolkit=gtk'
'--build=i486-slackware-linux' 'build_alias=i486-slackware-linux'
'CFLAGS=-O2 -march=i486 -mtune=i686''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: C
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_US
value of $XMODIFIERS: nil
locale-coding-system: iso-latin-1-unix
default-enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
shell-dirtrack-mode: t
diff-auto-refine-mode: t
show-paren-mode: t
display-time-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
size-indication-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
MON KEY <monkey@HIDDEN>:Emacs Bugs <bug-gnu-emacs@HIDDEN>.
Full text available.bug-submit-list@HIDDEN, Emacs Bugs <bug-gnu-emacs@HIDDEN>:bug#2807; Package emacs.
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