Commit acbce627 authored by Richard M. Stallman's avatar Richard M. Stallman

(c-mode-base-map, c++-mode-map):

Move `/' as an electric character
from c++-mode-map to c-mode-base-map for all languages.

(c-common-init): Set comment-multi-line and
comment-line-break-function here for all modes.
Make comment-line-break-function buffer local iff it's boundp.

(c-C-comment-start-regexp): Obsolete.

(c-comment-start-regexp): Initialize from c-C++-comment-start-regexp.

(c-populate-syntax-table, c-setup-dual-comments): Merge both functions
into c-populate-syntax-table.  With the new 9X draft C standard, both
line and block oriented comments are supported in all modes, so always
set up the syntax tables to support both comment styles.

(c-enable-//-in-c-mode): Obsolete.

(c++-mode-syntax-table, java-mode-syntax-table)
(objc-mode-syntax-table, idl-mode-syntax-table): Added autoload
cookies.  c-mode-syntax-table already has one.  Use the new syntax
table initialization idioms.
parent 611c76a7
......@@ -7,7 +7,7 @@
;; 1985 Richard M. Stallman
;; Maintainer:
;; Created: 22-Apr-1997 (split from cc-mode.el)
;; Version: 5.14
;; Version: 5.15
;; Keywords: c languages oop
;; This file is part of GNU Emacs.
......@@ -125,12 +125,11 @@
;; comment starter definitions for various languages. language specific
(defconst c-C-comment-start-regexp "/[*]")
(defconst c-C++-comment-start-regexp "/[/*]")
;; We need to match all 3 Java style comments
;; 1) Traditional C block; 2) javadoc /** ...; 3) C++ style
(defconst c-Java-comment-start-regexp "/\\(/\\|[*][*]?\\)")
(defvar c-comment-start-regexp c-C-comment-start-regexp)
(defvar c-comment-start-regexp c-C++-comment-start-regexp)
(make-variable-buffer-local 'c-comment-start-regexp)
......@@ -217,6 +216,9 @@ For use with the variable `java-mode-hook'."
(make-local-variable 'outline-level)
(make-local-variable 'adaptive-fill-regexp)
(make-local-variable 'imenu-generic-expression) ;set in the mode functions
;; X/Emacs 20 only
(and (boundp 'comment-line-break-function)
(make-local-variable 'comment-line-break-function))
;; Emacs 19.30 and beyond only, AFAIK
(if (boundp 'fill-paragraph-function)
......@@ -234,6 +236,8 @@ For use with the variable `java-mode-hook'."
outline-level 'c-outline-level
comment-column 32
comment-start-skip "/\\*+ *\\|// *"
comment-multi-line nil
comment-line-break-function 'c-comment-line-break-function
adaptive-fill-regexp nil)
;; we have to do something special for c-offsets-alist so that the
;; buffer local value has its own alist structure.
......@@ -299,28 +303,26 @@ it finds in `c-file-offsets'."
(modify-syntax-entry ?> "." table)
(modify-syntax-entry ?& "." table)
(modify-syntax-entry ?| "." table)
(modify-syntax-entry ?\' "\"" table))
(defun c-setup-dual-comments (table)
;; Set up TABLE to handle block and line style comments
(modify-syntax-entry ?\' "\"" table)
;; Set up block and line oriented comments. The new C standard
;; mandates both comment styles even in C, so since all languages
;; now require dual comments, we make this the default.
;; XEmacs 19 & 20
((memq '8-bit c-emacs-features)
(modify-syntax-entry ?/ ". 1456" table)
(modify-syntax-entry ?* ". 23" table)
(modify-syntax-entry ?\n "> b" table)
;; Give CR the same syntax as newline, for selective-display
(modify-syntax-entry ?\^m "> b" table))
;; Emacs 19
(modify-syntax-entry ?* ". 23" table))
;; Emacs 19 & 20
((memq '1-bit c-emacs-features)
(modify-syntax-entry ?/ ". 124b" table)
(modify-syntax-entry ?* ". 23" table)
(modify-syntax-entry ?\n "> b" table)
;; Give CR the same syntax as newline, for selective-display
(modify-syntax-entry ?\^m "> b" table))
(modify-syntax-entry ?* ". 23" table))
;; incompatible
(t (error "CC Mode is incompatible with this version of Emacs"))
(modify-syntax-entry ?\n "> b" table)
;; Give CR the same syntax as newline, for selective-display
(modify-syntax-entry ?\^m "> b" table))
(defvar c-mode-base-map ()
"Keymap shared by all CC Mode related modes.")
......@@ -369,6 +371,7 @@ it finds in `c-file-offsets'."
;; these are new keybindings, with no counterpart to BOCM
(define-key c-mode-base-map "," 'c-electric-semi&comma)
(define-key c-mode-base-map "*" 'c-electric-star)
(define-key c-mode-base-map "/" 'c-electric-slash)
(define-key c-mode-base-map "\C-c\C-q" 'c-indent-defun)
(define-key c-mode-base-map "\C-c\C-\\" 'c-backslash-region)
;; TBD: where if anywhere, to put c-backward|forward-into-nomenclature
......@@ -438,19 +441,7 @@ it finds in `c-file-offsets'."
(if c-mode-syntax-table
(setq c-mode-syntax-table (make-syntax-table))
(c-populate-syntax-table c-mode-syntax-table)
;; add extra comment syntax
(modify-syntax-entry ?/ ". 14" c-mode-syntax-table)
(modify-syntax-entry ?* ". 23" c-mode-syntax-table))
(defun c-enable-//-in-c-mode ()
"Enables // as a comment delimiter in `c-mode'.
ANSI C currently does *not* allow this, although many C compilers
support optional C++ style comments. To use, call this function from
your `.emacs' file before you visit any C files. The changes are
global and affect all future `c-mode' buffers."
(c-setup-dual-comments c-mode-syntax-table)
(setq-default c-C-comment-start-regexp c-C++-comment-start-regexp))
(c-populate-syntax-table c-mode-syntax-table))
(easy-menu-define c-c-menu c-mode-map "C Mode Commands"
(c-mode-menu "C"))
......@@ -469,18 +460,16 @@ global and affect all future `c-mode' buffers."
(setq c++-mode-map (c-make-inherited-keymap))
;; add bindings which are only useful for C++
(define-key c++-mode-map "\C-c:" 'c-scope-operator)
(define-key c++-mode-map "/" 'c-electric-slash)
(define-key c++-mode-map "<" 'c-electric-lt-gt)
(define-key c++-mode-map ">" 'c-electric-lt-gt))
(defvar c++-mode-syntax-table nil
"Syntax table used in c++-mode buffers.")
(if c++-mode-syntax-table
(setq c++-mode-syntax-table (make-syntax-table))
(c-populate-syntax-table c++-mode-syntax-table)
;; add extra comment syntax
(c-setup-dual-comments c++-mode-syntax-table)
;; TBD: does it make sense for colon to be symbol class in C++?
;; I'm not so sure, since c-label-key is busted on lines like:
;; Foo::bar( i );
......@@ -508,17 +497,15 @@ global and affect all future `c-mode' buffers."
;; add bindings which are only useful for Objective-C
(define-key objc-mode-map "/" 'c-electric-slash))
(defvar objc-mode-syntax-table nil
"Syntax table used in objc-mode buffers.")
(if objc-mode-syntax-table
(setq objc-mode-syntax-table (make-syntax-table))
(c-populate-syntax-table objc-mode-syntax-table)
;; add extra comment syntax
(c-setup-dual-comments objc-mode-syntax-table)
;; everyone gets these
(modify-syntax-entry ?@ "_" objc-mode-syntax-table)
;; add extra Objective-C only syntax
(modify-syntax-entry ?@ "_" objc-mode-syntax-table))
(easy-menu-define c-objc-menu objc-mode-map "ObjC Mode Commands"
(c-mode-menu "ObjC"))
......@@ -538,17 +525,13 @@ global and affect all future `c-mode' buffers."
;; add bindings which are only useful for Java
(define-key java-mode-map "/" 'c-electric-slash))
(defvar java-mode-syntax-table nil
"Syntax table used in java-mode buffers.")
(if java-mode-syntax-table
(setq java-mode-syntax-table (make-syntax-table))
(c-populate-syntax-table java-mode-syntax-table)
;; add extra comment syntax
(c-setup-dual-comments java-mode-syntax-table)
;; everyone gets these
(modify-syntax-entry ?@ "_" java-mode-syntax-table)
(c-populate-syntax-table java-mode-syntax-table))
(easy-menu-define c-java-menu java-mode-map "Java Mode Commands"
(c-mode-menu "Java"))
......@@ -568,15 +551,13 @@ global and affect all future `c-mode' buffers."
;; additional bindings
(define-key idl-mode-map "/" 'c-electric-slash))
(defvar idl-mode-syntax-table nil
"Syntax table used in idl-mode buffers.")
(if idl-mode-syntax-table
(setq idl-mode-syntax-table (make-syntax-table))
(c-populate-syntax-table idl-mode-syntax-table)
;; add extra comment syntax
(c-setup-dual-comments idl-mode-syntax-table)
(c-populate-syntax-table idl-mode-syntax-table))
(easy-menu-define c-idl-menu idl-mode-map "IDL Mode Commands"
(c-mode-menu "IDL"))
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