GNU bug report logs - #31847
CC Mode 5.33.1 (PHP//l); Issues with CC mode minor modes

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Message #10 received at 31847 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 31847 <at> debbugs.gnu.org
Cc: Brian Zwahr <echosa <at> echosa.net>
Subject: Re: bug#31847: CC Mode 5.33.1 (PHP//l);
 Issues with CC mode minor modes
Date: Sat, 16 Jun 2018 13:46:38 -0400

Report reassigned to cc-mode.

Brian Zwahr wrote:

> While using php-mode, I noticed some issues in cc modes when it comes to
> the minor modes (like subword-mode, etc).
>
> The documentation gives examples of how the mode line changes
> when these minors modes are enabled. For instance, the documentation
> says that when all the modes are enabled (in c-mode), the mode line
> should show `C/lahw`. However, when I enable them all, I see `C/*lah ,`.
>
> There are a couple of issues you'll notice here. First is that instead
> of subword-mode adding `w` to the mode line, it adds ` ,` (space comma).
>
> Second, there's an asterisk after the slash that isn't mentioned in the
> documentation. In php-mode and c++-mode, instead of an asterisk, there's
> a second slash (example: `PHP//l` or `C++//l`). It seems like this
> represents something about comment, though I'm not sure what exactly,
> nor why it is useful information.
>
> Finally, enabling c-toggle-syntactic-indentation doesn't change the mode
> line at all. It seems as though it is missing a call to
> c-update-modeline. However, the documentation also doesn't specify what
> should be added to the mode line for this one, so perhaps this is
> expected behavior. If so, should that be explicitly stated in the
> documentation? It's strange that 1 out of 5 minor modes don't change the
> mode line.
>
> I asked about this on Reddit, which is where I got some of the
> information I've added here. For reference, the post can be viewed here:
>
> https://www.reddit.com/r/emacs/comments/8r47xw/what_are_the_slashes_and_asterisks_in_the/
>
> Emacs  : GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
>  of 2018-05-29
> Package: CC Mode 5.33.1 (PHP//l)
> Buffer Style: symfony2
> c-emacs-features: (pps-extended-state col-0-paren posix-char-classes
> gen-string-delim gen-comment-delim syntax-properties 1-bit)
>
> current state:
> ==============
> (setq
>  c-basic-offset 4
>  c-comment-only-line-offset 0
>  c-indent-comment-alist '((anchored-comment column . 0) (end-block space . 1)
>                           (cpp-end-block space . 2))
>  c-indent-comments-syntactically-p t
>  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 '((brace-list-open) (brace-entry-open) (statement-cont)
>                           (substatement-open after) (block-close . c-snug-do-while)
>                           (extern-lang-open after) (namespace-open after)
>                           (module-open after) (composition-open after)
>                           (inexpr-class-open after) (inexpr-class-close before)
>                           (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 nil
>  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
>                     first
>                     php-lineup-cascaded-calls
>                     c-lineup-arglist
>                     )
>                    (arglist-cont first php-lineup-cascaded-calls 0)
>                    (comment-intro . 0)
>                    (catch-clause . 0)
>                    (else-clause . 0)
>                    (do-while-closure . 0)
>                    (access-label . -)
>                    (case-label . +)
>                    (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 php-lineup-cascaded-calls +)
>                    (brace-list-intro . +)
>                    (brace-list-open . 0)
>                    (inline-open . 0)
>                    (arglist-close . php-lineup-arglist-close)
>                    (arglist-intro . php-lineup-arglist-intro)
>                    (statement-cont . php-lineup-hanging-semicolon)
>                    (statement-case-open . 0)
>                    (label . +)
>                    (substatement-label . 2)
>                    (substatement-open . 0)
>                    (knr-argdecl-intro . +)
>                    (statement-block-intro . +)
>                    )
>  c-buffer-is-cc-mode 'php-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 "^\\s-*function\\s-+&?\\s-*\\(\\(\\sw\\|\\s_\\)+\\)\\s-*"
>  tab-width 4
>  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 78
>  paragraph-start "[ 	]*\\(//+\\|\\**\\)[ 	]*\\(@[a-zA-Z]+\\>\\|$\\)\\|^\f"
>  adaptive-fill-mode t
>  adaptive-fill-regexp "[ 	]*\\(//+\\|\\**\\)[ 	]*\\([ 	]*\\([-–!|#%;>*·•‣⁃◦]+[ 	]*\\)*\\)"
>  )

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