GNU bug report logs - #26207
CC Mode 5.32.99 (C/l); add more keywords to c-macro-names-with-semicolon

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Package: cc-mode; Reported by: Mohammed Sadiq <sadiq@HIDDEN>; dated Tue, 21 Mar 2017 16:48:02 UTC; Maintainer for cc-mode is bug-cc-mode@HIDDEN.

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To: Mohammed Sadiq <sadiq@HIDDEN>
Subject: Re: bug#26207: CC Mode 5.32.99 (C/l); add more keywords to
 c-macro-names-with-semicolon
Message-ID: <20170325184639.GC2838@acm>
References: <87h92mh90p.fsf@rose> <20170325105108.GA2838@acm>
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Hello, Mahammed.

On Sat, Mar 25, 2017 at 20:25:24 +0530, Mohammed Sadiq wrote:
> By the way, it seems like "Q_DECLARE" "Q_DEFINE" etc. are strings. But
> in the suggested case, G_BEGIN_DECLS and G_END_DECLS are strings
> while the others are regexps like "G_DEFINE[A-Z_]*" "G_DECLARE[A-Z_]".

I hadn't actually noticed that.  c-macro-names-with-semicolon can be
either a list of strings or a regular expression (but not a mixture of
the two ;-).

A regexp matching all four of the things above would look something
like:

    "G_\(\(BEGIN\|END\)_DECLS\|DE\(FINE\|CLARE\)[A-Z_]*\)"

(untested) (that's assuming that there should be a "*" at the end of
"G_DEECLARE[A-Z_]").  But here one must be careful - careful that there
aren't any macro names of that form which require one explicitly to
write a semicolon at their ends.

-- 
Alan Mackenzie (Nuremberg, Germany).
Information forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.

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Date: Sat, 25 Mar 2017 20:25:24 +0530 (IST)
From: Mohammed Sadiq <sadiq@HIDDEN>
To: Alan Mackenzie <acm@HIDDEN>
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References: <87h92mh90p.fsf@rose> <20170325105108.GA2838@acm>
 <2074290984.32233.1490443421511@HIDDEN>
 <20170325122037.GB2838@acm>
Subject: Re: bug#26207: CC Mode 5.32.99 (C/l); add more keywords to
 c-macro-names-with-semicolon
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By the way, it seems like "Q_DECLARE" "Q_DEFINE" etc. are strings. But
in the suggested case, G_BEGIN_DECLS and G_END_DECLS are strings
while the others are regexps like "G_DEFINE[A-Z_]*" "G_DECLARE[A-Z_]".
Information forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.

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 <2074290984.32233.1490443421511@HIDDEN>
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Subject: Re: bug#26207: CC Mode 5.32.99 (C/l); add more keywords to
 c-macro-names-with-semicolon
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> On March 25, 2017 at 5:50 PM Alan Mackenzie <acm@HIDDEN> wrote:
> <snip>
> But another thing that concerns me is, is there anything in the doc
> strings or manual, or is there anything missing, which might make it
> unclear that c-macro-names-with-semicolon is meant to be a configuration
> variable?

Some part of  the documentation of c-macro-names-with-semicolon is unclear to me:

"List of #defined symbols whose expansion ends with a semicolon..."
which may better be something like "List of #defined symbols that don't require
to be ended with a semicolon..."

Also as a note: some of the symbols I suggested have been used in GNU Emacs source
itself.

Thanks
>  
> -- 
> Alan Mackenzie (Nuremberg, Germany).
Information forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.

Message received at 26207 <at> debbugs.gnu.org:


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Date: Sat, 25 Mar 2017 12:20:37 +0000
To: Mohammed Sadiq <sadiq@HIDDEN>
Subject: Re: bug#26207: CC Mode 5.32.99 (C/l); add more keywords to
 c-macro-names-with-semicolon
Message-ID: <20170325122037.GB2838@acm>
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Hello again, Mohammed.

On Sat, Mar 25, 2017 at 17:33:41 +0530, Mohammed Sadiq wrote:

> > On March 25, 2017 at 4:21 PM Alan Mackenzie <acm@HIDDEN> wrote:
> > c-macro-names-with-semicolon is a user option, a configuration variable.
> > The idea is, each user (or project) sets up this variable in her/his/its
> > .emacs, probably best done in the hook c-mode-common-hook.  So, any user
> > can set up all these "G_..." macros if her source code uses them.

> > Or have I missed something here?

> Hm. Probably No. But may be yes. :)

> In cc-vars.el, I saw '("Q_OBJECT" "Q_PROPERTY" "Q_DECLARE" "Q_ENUMS")
> set in GNU Emacs source. I believe that they are used in Qt. 

I think so too, but it's so long ago I can't remember for sure.  ;-)

> The values I said ("G_DECLARE", "G_DEFINE", "G_BEGIN_DECLS",
> "G_END_DECLS") are used extensively in GTk+ and is defined in GLib. As
> those both are GNU projects, I find it right to be included in GNU
> Emacs by default, especially since Qt variables are already included.

> I don't know if I'm wrong to say so.

No, maybe you're right, the default (which was intended as no more than
an illustration, rather than just having a null list as default)
probably should be symbols from a GNU project.  The four you list is a
short enough list not to be unreasonable as a default.  Let me mull this
over for a while.

But another thing that concerns me is, is there anything in the doc
strings or manual, or is there anything missing, which might make it
unclear that c-macro-names-with-semicolon is meant to be a configuration
variable?
 
-- 
Alan Mackenzie (Nuremberg, Germany).
Information forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.

Message received at 26207 <at> debbugs.gnu.org:


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Date: Sat, 25 Mar 2017 17:33:41 +0530 (IST)
From: Mohammed Sadiq <sadiq@HIDDEN>
To: Alan Mackenzie <acm@HIDDEN>
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Subject: Re: bug#26207: CC Mode 5.32.99 (C/l); add more keywords to
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> On March 25, 2017 at 4:21 PM Alan Mackenzie <acm@HIDDEN> wrote:
> c-macro-names-with-semicolon is a user option, a configuration variable.
> The idea is, each user (or project) sets up this variable in her/his/its
> .emacs, probably best done in the hook c-mode-common-hook.  So, any user
> can set up all these "G_..." macros if her source code uses them.
> 
> Or have I missed something here?

Hm. Probably No. But may be yes. :)

In cc-vars.el, I saw '("Q_OBJECT" "Q_PROPERTY" "Q_DECLARE" "Q_ENUMS") set in GNU 
Emacs source. I believe that they are used in Qt. 

The values I said ("G_DECLARE", "G_DEFINE",
"G_BEGIN_DECLS", "G_END_DECLS") are used extensively in GTk+ and is defined
in GLib. As those both are GNU projects, I find it right to be included in GNU Emacs by
default, especially since Qt variables are already included.

I don't know if I'm wrong to say so.

> 
> > Thanks
> 
> -- 
> Alan Mackenzie (Nuremberg, Germany).
Information forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.

Message received at 26207 <at> debbugs.gnu.org:


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To: Mohammed Sadiq <sadiq@HIDDEN>
Subject: Re: bug#26207: CC Mode 5.32.99 (C/l); add more keywords to
 c-macro-names-with-semicolon
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Hello, Mohammed.

On Tue, Mar 21, 2017 at 22:17:18 +0530, Mohammed Sadiq wrote:

> Hi,

> Currently the following are the values set for
> `c-macro-names-with-semicolon':  ("Q_OBJECT" "Q_PROPERTY" "Q_DECLARE"
> "Q_ENUMS")

> The following glib (https://en.wikipedia.org/wiki/GLib) variables are
> extensively used in several projects including Gtk+. So it would be nice
> for those to be added too to `c-macro-names-with-semicolon':

> "G_BEGIN_DECLS" "G_END_DECLS" "G_DECLARE_FINAL_TYPE"
> "G_DECLARE_DERIVABLE_TYPE" "G_DECLARE_INTERFACE" "G_DEFINE_TYPE"
> "G_DEFINE_TYPE_WITH_PRIVATE" "G_DEFINE_ABSTRACT_TYPE"
> "G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE"

> may be 'G_DEFINE_', 'G_DECLARE_', 'G_BEGIN_DECLS', and 'G_END_DECLS'
> shall cover most scenarios.

c-macro-names-with-semicolon is a user option, a configuration variable.
The idea is, each user (or project) sets up this variable in her/his/its
.emacs, probably best done in the hook c-mode-common-hook.  So, any user
can set up all these "G_..." macros if her source code uses them.

Or have I missed something here?

> Thanks

-- 
Alan Mackenzie (Nuremberg, Germany).
Information forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: Mohammed Sadiq <sadiq@HIDDEN>
To: submit <at> debbugs.gnu.org
Subject: CC Mode 5.32.99 (C/l);
 add more keywords to c-macro-names-with-semicolon
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Date: Tue, 21 Mar 2017 22:17:18 +0530
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Hi,

Currently the following are the values set for
`c-macro-names-with-semicolon':  ("Q_OBJECT" "Q_PROPERTY" "Q_DECLARE"
"Q_ENUMS")

The following glib (https://en.wikipedia.org/wiki/GLib) variables are
extensively used in several projects including Gtk+. So it would be nice
for those to be added too to `c-macro-names-with-semicolon':

"G_BEGIN_DECLS" "G_END_DECLS" "G_DECLARE_FINAL_TYPE"
"G_DECLARE_DERIVABLE_TYPE" "G_DECLARE_INTERFACE" "G_DEFINE_TYPE"
"G_DEFINE_TYPE_WITH_PRIVATE" "G_DEFINE_ABSTRACT_TYPE"
"G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE"

may be 'G_DEFINE_', 'G_DECLARE_', 'G_BEGIN_DECLS', and 'G_END_DECLS'
shall cover most scenarios.

Thanks

Emacs  : GNU Emacs 26.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22=
.8)
 of 2017-03-21
Package: CC Mode 5.32.99 (C/l)
Buffer Style: gnu
c-emacs-features: (pps-extended-state col-0-paren posix-char-classes gen-st=
ring-delim gen-comment-delim syntax-properties 1-bit)

current state:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
(setq
 c-basic-offset 2
 c-comment-only-line-offset '(0 . 0)
 c-indent-comment-alist '((anchored-comment column . 0) (end-block space . =
1)
			  (cpp-end-block space . 2))
 c-indent-comments-syntactically-p nil
 c-block-comment-prefix ""
 c-comment-prefix-regexp '((pike-mode . "//+!?\\|\\**") (awk-mode . "#+")
			   (other . "//+\\|\\**"))
 c-doc-comment-style '((java-mode . javadoc) (pike-mode . autodoc)
		       (c-mode . gtkdoc))
 c-cleanup-list '(scope-operator)
 c-hanging-braces-alist '((substatement-open before after)
			  (arglist-cont-nonempty))
 c-hanging-colons-alist nil
 c-hanging-semi&comma-criteria '(c-semi&comma-inside-parenlist)
 c-backslash-column 48
 c-backslash-max-column 72
 c-special-indent-hook '(c-gnu-impose-minimum)
 c-label-minimum-indentation 1
 c-offsets-alist '((inexpr-class . +)
		   (inexpr-statement . +)
		   (lambda-intro-cont . +)
		   (inlambda . c-lineup-inexpr-block)
		   (template-args-cont c-lineup-template-args +)
		   (incomposition . +)
		   (inmodule . +)
		   (innamespace . +)
		   (inextern-lang . +)
		   (composition-close . 0)
		   (module-close . 0)
		   (namespace-close . 0)
		   (extern-lang-close . 0)
		   (composition-open . 0)
		   (module-open . 0)
		   (namespace-open . 0)
		   (extern-lang-open . 0)
		   (objc-method-call-cont
		    c-lineup-ObjC-method-call-colons
		    c-lineup-ObjC-method-call
		    +
		    )
		   (objc-method-args-cont . c-lineup-ObjC-method-args)
		   (objc-method-intro . [0])
		   (friend . 0)
		   (cpp-define-intro c-lineup-cpp-define +)
		   (cpp-macro-cont . +)
		   (cpp-macro . [0])
		   (inclass . +)
		   (stream-op . c-lineup-streamop)
		   (arglist-cont-nonempty
		    c-lineup-gcc-asm-reg
		    c-lineup-arglist
		    )
		   (arglist-cont c-lineup-gcc-asm-reg 0)
		   (comment-intro
		    c-lineup-knr-region-comment
		    c-lineup-comment
		    )
		   (catch-clause . 0)
		   (else-clause . 0)
		   (do-while-closure . 0)
		   (access-label . -)
		   (case-label . 0)
		   (substatement . +)
		   (statement-case-intro . +)
		   (statement . 0)
		   (brace-entry-open . 0)
		   (brace-list-entry . c-lineup-under-anchor)
		   (brace-list-close . 0)
		   (block-close . 0)
		   (block-open . 0)
		   (inher-cont . c-lineup-multi-inher)
		   (inher-intro . +)
		   (member-init-cont . c-lineup-multi-inher)
		   (member-init-intro . +)
		   (annotation-var-cont . +)
		   (annotation-top-cont . 0)
		   (topmost-intro . 0)
		   (knr-argdecl . 0)
		   (func-decl-cont . +)
		   (inline-close . 0)
		   (class-close . 0)
		   (class-open . 0)
		   (defun-block-intro . +)
		   (defun-close . 0)
		   (defun-open . 0)
		   (c . c-lineup-C-comments)
		   (string . c-lineup-dont-change)
		   (topmost-intro-cont
		    first
		    c-lineup-topmost-intro-cont
		    c-lineup-gnu-DEFUN-intro-cont
		    )
		   (brace-list-intro . c-lineup-arglist-intro-after-paren)
		   (brace-list-open . +)
		   (inline-open . 0)
		   (arglist-close . c-lineup-arglist)
		   (arglist-intro . c-lineup-arglist-intro-after-paren)
		   (statement-cont . +)
		   (statement-case-open . +)
		   (label . 0)
		   (substatement-label . 0)
		   (substatement-open . +)
		   (knr-argdecl-intro . 5)
		   (statement-block-intro . +)
		   )
 c-buffer-is-cc-mode 'c-mode
 c-tab-always-indent t
 c-syntactic-indentation t
 c-syntactic-indentation-in-macros t
 c-ignore-auto-fill '(string cpp code)
 c-auto-align-backslashes t
 c-backspace-function 'backward-delete-char-untabify
 c-delete-function 'delete-char
 c-electric-pound-behavior nil
 c-default-style '((java-mode . "java") (awk-mode . "awk") (other . "gnu"))
 c-enable-xemacs-performance-kludge-p nil
 c-old-style-variable-behavior nil
 defun-prompt-regexp nil
 tab-width 8
 comment-column 32
 parse-sexp-ignore-comments t
 parse-sexp-lookup-properties t
 auto-fill-function nil
 comment-multi-line t
 comment-start-skip "\\(//+\\|/\\*+\\)\\s *"
 fill-prefix nil
 fill-column 70
 paragraph-start "[ 	]*\\(//+\\|\\**\\)[ 	]*$\\|^\f"
 adaptive-fill-mode t
 adaptive-fill-regexp "[ 	]*\\(//+\\|\\**\\)[ 	]*\\([ 	]*\\([-=E2=80=93!|#%=
;>*=C2=B7=E2=80=A2=E2=80=A3=E2=81=83=E2=97=A6]+[ 	]*\\)*\\)"
 )
Acknowledgement sent to Mohammed Sadiq <sadiq@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-cc-mode@HIDDEN. Full text available.
Report forwarded to bug-cc-mode@HIDDEN:
bug#26207; Package cc-mode. Full text available.
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