Subject: bug#59427: closed (Re: bug#59427: CC Mode 5.35.2 (C/*l); More bad fontification)

From: [email-masked] (GNU bug Tracking System)
Date: Fri, 25 Nov 2022 09:55:02 +0000

Your bug report

#59427: CC Mode 5.35.2 (C/*l); More bad fontification

which was filed against the cc-mode package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
59427: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59427
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#59427: CC Mode 5.35.2 (C/*l); More bad fontification
From: Alan Mackenzie <[email-masked]>
To: Po Lu <[email-masked]>
Cc: [email-masked]
Date: Fri, 25 Nov 2022 09:53:55 +0000
List-Id: <debbugs-submit.debbugs.gnu.org>

Hello, Po.

On Fri, Nov 25, 2022 at 08:37:48 +0800, Po Lu wrote:
> Alan Mackenzie <[email-masked]> writes:

> > On Mon, Nov 21, 2022 at 10:32:26 +0800, Po Lu via CC-Mode-help wrote:
> >> Package: cc-mode

> >> Insert the following text in a c-mode buffer:

> >> static uint64_t
> >> ConfineTime (uint64_t time)
> >> {
> >>   uint32_t milliseconds;

> >>   /* Given a microsecond time, confine the millisecond part to
> >>      CARD32.  */
> >>   milliseconds = time / 1000;

> >>   return (milliseconds * (uint64_t) 1000
> >> 	  + time % 1000);
> >> }

> >> Notice how "milliseconds" is recognized as a type, and the uint64_t in
> >> the cast as an identifier.

> > Yes.  Here the "symmetric space" criterion for * was buggy.  That
> > criterion says if there is whitespace on neither side of the *, or both,
> > it is a multiplication sign.  Otherwise it is the indirection operator.

> > The bug was not taking the ( properly into account.  Please apply the
> > attached patch, which should fix this, and confirm it works OK.  Thanks!

> It does, thanks.

Thanks!  I've committed the patch, and I'm closing the bug with this
post.

-- 
Alan Mackenzie (Nuremberg, Germany).

Subject: CC Mode 5.35.2 (C/*l); More bad fontification
From: Po Lu <[email-masked]>
To: [email-masked]
Date: Mon, 21 Nov 2022 10:32:26 +0800
List-Id: <debbugs-submit.debbugs.gnu.org>

Package: cc-mode

Insert the following text in a c-mode buffer:

static uint64_t
ConfineTime (uint64_t time)
{
  uint32_t milliseconds;

  /* Given a microsecond time, confine the millisecond part to
     CARD32.  */
  milliseconds = time / 1000;

  return (milliseconds * (uint64_t) 1000
	  + time % 1000);
}

Notice how "milliseconds" is recognized as a type, and the uint64_t in
the cast as an identifier.

Emacs  : GNU Emacs 29.0.50 (build 236, x86_64-pc-linux-gnu)
 of 2022-11-21
Package: CC Mode 5.35.2 (C/*l)
Buffer Style: gnu
c-emacs-features: (pps-extended-state col-0-paren posix-char-classes gen-string-delim gen-comment-delim syntax-properties category-properties 1-bit)

current state:
==============
(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++-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 '(t c-gnu-impose-minimum)
 c-label-minimum-indentation 1
 c-offsets-alist '((inexpr-class . +)
		   (inexpr-statement . +)
		   (lambda-intro-cont . +)
		   (inlambda . 0)
		   (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 . 0)
		   (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
		    first
		    c-lineup-2nd-brace-entry-in-arglist
		    c-lineup-class-decl-init-+
		    +
		    )
		   (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 "[ 	]*\\(//+\\|\\**\\)[ 	]*\\([ 	]*\\([-–!|#%;>*·•‣⁃◦]+[ 	]*\\)*\\)"
 )