mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-15 09:47:20 +00:00
429 lines
15 KiB
EmacsLisp
429 lines
15 KiB
EmacsLisp
;;; cc-menus.el --- imenu support for CC Mode
|
||
|
||
;; Copyright (C) 1985,1987,1992-2003 Free Software Foundation, Inc.
|
||
|
||
;; Authors: 1998- Martin Stjernholm
|
||
;; 1992-1999 Barry A. Warsaw
|
||
;; 1987 Dave Detlefs and Stewart Clamen
|
||
;; 1985 Richard M. Stallman
|
||
;; Maintainer: bug-cc-mode@gnu.org
|
||
;; Created: 22-Apr-1997 (split from cc-mode.el)
|
||
;; Version: See cc-mode.el
|
||
;; Keywords: c languages oop
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs is free software; you can redistribute it and/or modify
|
||
;; it under the terms of the GNU General Public License as published by
|
||
;; the Free Software Foundation; either version 2, or (at your option)
|
||
;; any later version.
|
||
|
||
;; GNU Emacs is distributed in the hope that it will be useful,
|
||
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;; GNU General Public License for more details.
|
||
|
||
;; You should have received a copy of the GNU General Public License
|
||
;; along with GNU Emacs; see the file COPYING. If not, write to
|
||
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
;; Boston, MA 02111-1307, USA.
|
||
|
||
;;; Commentary:
|
||
|
||
;;; Code:
|
||
|
||
(eval-when-compile
|
||
(let ((load-path
|
||
(if (and (boundp 'byte-compile-dest-file)
|
||
(stringp byte-compile-dest-file))
|
||
(cons (file-name-directory byte-compile-dest-file) load-path)
|
||
load-path)))
|
||
(load "cc-bytecomp" nil t)))
|
||
|
||
(cc-require 'cc-defs)
|
||
|
||
;; The things referenced in imenu, which we don't require.
|
||
(cc-bytecomp-defvar imenu-case-fold-search)
|
||
(cc-bytecomp-defvar imenu-generic-expression)
|
||
(cc-bytecomp-defvar imenu-create-index-function)
|
||
(cc-bytecomp-defun imenu-progress-message)
|
||
|
||
|
||
;; imenu integration
|
||
(defvar cc-imenu-c-prototype-macro-regexp nil
|
||
"RE matching macro names used to conditionally specify function prototypes.
|
||
|
||
For example:
|
||
|
||
#ifdef __STDC__
|
||
#define _P(x) x
|
||
#else
|
||
#define _P(x) /*nothing*/
|
||
#endif
|
||
|
||
int main _P( (int argc, char *argv[]) )
|
||
|
||
A sample value might look like: `\\(_P\\|_PROTO\\)'.")
|
||
|
||
(defvar cc-imenu-c++-generic-expression
|
||
`(
|
||
;; Try to match ::operator definitions first. Otherwise `X::operator new ()'
|
||
;; will be incorrectly recognised as function `new ()' because the regexps
|
||
;; work by backtracking from the end of the definition.
|
||
(nil
|
||
,(concat
|
||
"^\\<.*"
|
||
"[^" c-alnum "_:<>~]" ; match any non-identifier char
|
||
; (note: this can be `\n')
|
||
"\\("
|
||
"\\([" c-alnum "_:<>~]*::\\)?" ; match an operator
|
||
"operator\\>[ \t]*"
|
||
"\\(()\\|[^(]*\\)" ; special case for `()' operator
|
||
"\\)"
|
||
|
||
"[ \t]*([^)]*)[ \t]*[^ \t;]" ; followed by ws, arg list,
|
||
; require something other than
|
||
; a `;' after the (...) to
|
||
; avoid prototypes. Can't
|
||
; catch cases with () inside
|
||
; the parentheses surrounding
|
||
; the parameters. e.g.:
|
||
; `int foo(int a=bar()) {...}'
|
||
) 1)
|
||
;; Special case to match a line like `main() {}'
|
||
;; e.g. no return type, not even on the previous line.
|
||
(nil
|
||
,(concat
|
||
"^"
|
||
"\\([" c-alpha "_][" c-alnum "_:<>~]*\\)" ; match function name
|
||
"[ \t]*(" ; see above, BUT
|
||
"[ \t]*\\([^ \t(*][^)]*\\)?)" ; the arg list must not start
|
||
"[ \t]*[^ \t;(]" ; with an asterisk or parentheses
|
||
) 1)
|
||
;; General function name regexp
|
||
(nil
|
||
,(concat
|
||
"^\\<" ; line MUST start with word char
|
||
"[^()]*" ; no parentheses before
|
||
"[^" c-alnum "_:<>~]" ; match any non-identifier char
|
||
"\\([" c-alpha "_][" c-alnum "_:<>~]*\\)" ; match function name
|
||
"\\([ \t\n]\\|\\\\\n\\)*(" ; see above, BUT the arg list
|
||
"\\([ \t\n]\\|\\\\\n\\)*\\([^ \t\n(*][^)]*\\)?)" ; must not start
|
||
"\\([ \t\n]\\|\\\\\n\\)*[^ \t\n;(]" ; with an asterisk or parentheses
|
||
) 1)
|
||
;; Special case for definitions using phony prototype macros like:
|
||
;; `int main _PROTO( (int argc,char *argv[]) )'.
|
||
;; This case is only included if cc-imenu-c-prototype-macro-regexp is set.
|
||
;; Only supported in c-code, so no `:<>~' chars in function name!
|
||
,@(if cc-imenu-c-prototype-macro-regexp
|
||
`((nil
|
||
,(concat
|
||
"^\\<.*" ; line MUST start with word char
|
||
"[^" c-alnum "_]" ; match any non-identifier char
|
||
"\\([" c-alpha "_][" c-alnum "_]*\\)" ; match function name
|
||
"[ \t]*" ; whitespace before macro name
|
||
cc-imenu-c-prototype-macro-regexp
|
||
"[ \t]*(" ; ws followed by first paren.
|
||
"[ \t]*([^)]*)[ \t]*)[ \t]*[^ \t;]" ; see above
|
||
) 1)))
|
||
;; Class definitions
|
||
("Class"
|
||
,(concat
|
||
"^" ; beginning of line is required
|
||
"\\(template[ \t]*<[^>]+>[ \t]*\\)?" ; there may be a `template <...>'
|
||
"\\(class\\|struct\\)[ \t]+"
|
||
"\\(" ; the string we want to get
|
||
"[" c-alnum "_]+" ; class name
|
||
"\\(<[^>]+>\\)?" ; possibly explicitly specialized
|
||
"\\)"
|
||
"\\([ \t\n]\\|\\\\\n\\)*[:{]"
|
||
) 3))
|
||
"Imenu generic expression for C++ mode. See `imenu-generic-expression'.")
|
||
|
||
(defvar cc-imenu-c-generic-expression
|
||
cc-imenu-c++-generic-expression
|
||
"Imenu generic expression for C mode. See `imenu-generic-expression'.")
|
||
|
||
(defvar cc-imenu-java-generic-expression
|
||
`((nil
|
||
,(concat
|
||
"[" c-alpha "_][\]\[." c-alnum "_]+[ \t\n\r]+" ; type spec
|
||
"\\([" c-alpha "_][" c-alnum "_]+\\)" ; method name
|
||
"[ \t\n\r]*"
|
||
;; An argument list that is either empty or contains at least
|
||
;; two identifiers with only space between them. This avoids
|
||
;; matching e.g. "else if (foo)".
|
||
(concat "([ \t\n\r]*"
|
||
"\\([\]\[.," c-alnum "_]+"
|
||
"[ \t\n\r]+"
|
||
"[\]\[.," c-alnum "_]"
|
||
"[\]\[.," c-alnum "_ \t\n\r]*"
|
||
"\\)?)")
|
||
"[.," c-alnum "_ \t\n\r]*"
|
||
"{"
|
||
) 1))
|
||
"Imenu generic expression for Java mode. See `imenu-generic-expression'.")
|
||
|
||
;; *Warning for cc-mode developers*
|
||
;;
|
||
;; `cc-imenu-objc-generic-expression' elements depend on
|
||
;; `cc-imenu-c++-generic-expression'. So if you change this
|
||
;; expression, you need to change following variables,
|
||
;; `cc-imenu-objc-generic-expression-*-index',
|
||
;; too. `cc-imenu-objc-function' uses these *-index variables, in
|
||
;; order to know where the each regexp *group \\(foobar\\)* elements
|
||
;; are started.
|
||
;;
|
||
;; *-index variables are initialized during `cc-imenu-objc-generic-expression'
|
||
;; being initialized.
|
||
;;
|
||
|
||
;; Internal variables
|
||
(defvar cc-imenu-objc-generic-expression-noreturn-index nil)
|
||
(defvar cc-imenu-objc-generic-expression-general-func-index nil)
|
||
(defvar cc-imenu-objc-generic-expression-proto-index nil)
|
||
(defvar cc-imenu-objc-generic-expression-objc-base-index nil)
|
||
|
||
(defvar cc-imenu-objc-generic-expression
|
||
(concat
|
||
;;
|
||
;; For C
|
||
;;
|
||
;; > Special case to match a line like `main() {}'
|
||
;; > e.g. no return type, not even on the previous line.
|
||
;; Pick a token by (match-string 1)
|
||
(car (cdr (nth 1 cc-imenu-c++-generic-expression))) ; -> index += 2
|
||
(prog2 (setq cc-imenu-objc-generic-expression-noreturn-index 1) "")
|
||
"\\|"
|
||
;; > General function name regexp
|
||
;; Pick a token by (match-string 3)
|
||
(car (cdr (nth 2 cc-imenu-c++-generic-expression))) ; -> index += 5
|
||
(prog2 (setq cc-imenu-objc-generic-expression-general-func-index 3) "")
|
||
;; > Special case for definitions using phony prototype macros like:
|
||
;; > `int main _PROTO( (int argc,char *argv[]) )'.
|
||
;; Pick a token by (match-string 8)
|
||
(if cc-imenu-c-prototype-macro-regexp
|
||
(concat
|
||
"\\|"
|
||
(car (cdr (nth 3 cc-imenu-c++-generic-expression))) ; -> index += 1
|
||
(prog2 (setq cc-imenu-objc-generic-expression-objc-base-index 9) "")
|
||
)
|
||
(prog2 (setq cc-imenu-objc-generic-expression-objc-base-index 8) "")
|
||
"") ; -> index += 0
|
||
(prog2 (setq cc-imenu-objc-generic-expression-proto-index 8) "")
|
||
;;
|
||
;; For Objective-C
|
||
;; Pick a token by (match-string 8 or 9)
|
||
;;
|
||
"\\|\\("
|
||
"^[-+][:" c-alnum "()*_<>\n\t ]*[;{]" ; Methods
|
||
"\\|"
|
||
"^@interface[\t ]+[" c-alnum "_]+[\t ]*:"
|
||
"\\|"
|
||
"^@interface[\t ]+[" c-alnum "_]+[\t ]*([" c-alnum "_]+)"
|
||
"\\|"
|
||
;; For NSObject, NSProxy and Object... They don't have super class.
|
||
"^@interface[\t ]+[" c-alnum "_]+[\t ]*.*$"
|
||
"\\|"
|
||
"^@implementation[\t ]+[" c-alnum "_]+[\t ]*([" c-alnum "_]+)"
|
||
"\\|"
|
||
"^@implementation[\t ]+[" c-alnum "_]+"
|
||
"\\|"
|
||
"^@protocol[\t ]+[" c-alnum "_]+" "\\)")
|
||
"Imenu generic expression for ObjC mode. See `imenu-generic-expression'.")
|
||
|
||
|
||
;; Imenu support for objective-c uses functions.
|
||
(defsubst cc-imenu-objc-method-to-selector (method)
|
||
"Return the objc selector style string of METHOD.
|
||
Example:
|
||
- perform: (SEL)aSelector withObject: object1 withObject: object2; /* METHOD */
|
||
=>
|
||
-perform:withObject:withObject:withObject: /* selector */"
|
||
;; This function does not do any hidden buffer changes.
|
||
(let ((return "") ; String to be returned
|
||
(p 0) ; Current scanning position in METHOD
|
||
(pmax (length method)) ;
|
||
char ; Current scanning target
|
||
(betweenparen 0) ; CHAR is in parentheses.
|
||
argreq ; An argument is required.
|
||
inargvar) ; position of CHAR is in an argument variable.
|
||
(while (< p pmax)
|
||
(setq char (aref method p)
|
||
p (1+ p))
|
||
(cond
|
||
;; Is CHAR part of a objc token?
|
||
((and (not inargvar) ; Ignore if CHAR is part of an argument variable.
|
||
(eq 0 betweenparen) ; Ignore if CHAR is in parentheses.
|
||
(or (and (<= ?a char) (<= char ?z))
|
||
(and (<= ?A char) (<= char ?Z))
|
||
(and (<= ?0 char) (<= char ?9))
|
||
(= ?_ char)))
|
||
(if argreq
|
||
(setq inargvar t
|
||
argreq nil)
|
||
(setq return (concat return (char-to-string char)))))
|
||
;; Or a white space?
|
||
((and inargvar (or (eq ?\ char) (eq ?\n char))
|
||
(setq inargvar nil)))
|
||
;; Or a method separator?
|
||
;; If a method separator, the next token will be an argument variable.
|
||
((eq ?: char)
|
||
(setq argreq t
|
||
return (concat return (char-to-string char))))
|
||
;; Or an open parentheses?
|
||
((eq ?\( char)
|
||
(setq betweenparen (1+ betweenparen)))
|
||
;; Or a close parentheses?
|
||
((eq ?\) char)
|
||
(setq betweenparen (1- betweenparen)))))
|
||
return))
|
||
|
||
(defun cc-imenu-objc-remove-white-space (str)
|
||
"Remove all spaces and tabs from STR."
|
||
;; This function does not do any hidden buffer changes.
|
||
(let ((return "")
|
||
(p 0)
|
||
(max (length str))
|
||
char)
|
||
(while (< p max)
|
||
(setq char (aref str p))
|
||
(setq p (1+ p))
|
||
(if (or (= char ?\ ) (= char ?\t))
|
||
()
|
||
(setq return (concat return (char-to-string char)))))
|
||
return))
|
||
|
||
(defun cc-imenu-objc-function ()
|
||
"imenu supports for objc-mode."
|
||
;; This function does not do any hidden buffer changes.
|
||
(let (methodlist
|
||
clist
|
||
;;
|
||
;; OBJC, Cnoreturn, Cgeneralfunc, Cproto are constants.
|
||
;;
|
||
;; *Warning for developers*
|
||
;; These constants depend on `cc-imenu-c++-generic-expression'.
|
||
;;
|
||
(OBJC cc-imenu-objc-generic-expression-objc-base-index)
|
||
;; Special case to match a line like `main() {}'
|
||
(Cnoreturn cc-imenu-objc-generic-expression-noreturn-index)
|
||
;; General function name regexp
|
||
(Cgeneralfunc cc-imenu-objc-generic-expression-general-func-index)
|
||
;; Special case for definitions using phony prototype macros like:
|
||
(Cproto cc-imenu-objc-generic-expression-proto-index)
|
||
langnum
|
||
;;
|
||
(classcount 0)
|
||
toplist
|
||
stupid
|
||
str
|
||
str2
|
||
(intflen (length "@interface"))
|
||
(implen (length "@implementation"))
|
||
(prtlen (length "@protocol"))
|
||
(func
|
||
;;
|
||
;; Does this emacs has buffer-substring-no-properties?
|
||
;;
|
||
(if (fboundp 'buffer-substring-no-properties)
|
||
'buffer-substring-no-properties
|
||
'buffer-substring)))
|
||
(goto-char (point-max))
|
||
(imenu-progress-message stupid 0)
|
||
;;
|
||
(while (re-search-backward cc-imenu-objc-generic-expression nil t)
|
||
(imenu-progress-message stupid)
|
||
(setq langnum (if (match-beginning OBJC)
|
||
OBJC
|
||
(cond
|
||
((match-beginning Cproto) Cproto)
|
||
((match-beginning Cgeneralfunc) Cgeneralfunc)
|
||
((match-beginning Cnoreturn) Cnoreturn))))
|
||
(setq str (funcall func (match-beginning langnum) (match-end langnum)))
|
||
;;
|
||
(cond
|
||
;;
|
||
;; C
|
||
;;
|
||
((not (eq langnum OBJC))
|
||
(setq clist (cons (cons str (match-beginning langnum)) clist)))
|
||
;;
|
||
;; ObjC
|
||
;;
|
||
;; An instance Method
|
||
((eq (aref str 0) ?-)
|
||
(setq str (concat "-" (cc-imenu-objc-method-to-selector str)))
|
||
(setq methodlist (cons (cons str
|
||
(match-beginning langnum))
|
||
methodlist)))
|
||
;; A factory Method
|
||
((eq (aref str 0) ?+)
|
||
(setq str (concat "+" (cc-imenu-objc-method-to-selector str)))
|
||
(setq methodlist (cons (cons str
|
||
(match-beginning langnum))
|
||
methodlist)))
|
||
;; Interface or implementation or protocol
|
||
((eq (aref str 0) ?@)
|
||
(setq classcount (1+ classcount))
|
||
(cond
|
||
((and (> (length str) implen)
|
||
(string= (substring str 0 implen) "@implementation"))
|
||
(setq str (substring str implen)
|
||
str2 "@implementation"))
|
||
((string= (substring str 0 intflen) "@interface")
|
||
(setq str (substring str intflen)
|
||
str2 "@interface"))
|
||
((string= (substring str 0 prtlen) "@protocol")
|
||
(setq str (substring str prtlen)
|
||
str2 "@protocol")))
|
||
(setq str (cc-imenu-objc-remove-white-space str))
|
||
(setq methodlist (cons (cons str2
|
||
(match-beginning langnum))
|
||
methodlist))
|
||
(setq toplist (cons nil (cons (cons str
|
||
methodlist) toplist))
|
||
methodlist nil))))
|
||
;;
|
||
(imenu-progress-message stupid 100)
|
||
(if (eq (car toplist) nil)
|
||
(setq toplist (cdr toplist)))
|
||
|
||
;; In this buffer, there is only one or zero @{interface|implementation|protocol}.
|
||
(if (< classcount 2)
|
||
(let ((classname (car (car toplist)))
|
||
(p (cdr (car (cdr (car toplist)))))
|
||
last)
|
||
(setq toplist (cons (cons classname p) (cdr (cdr (car toplist)))))
|
||
;; Add C lang token
|
||
(if clist
|
||
(progn
|
||
(setq last toplist)
|
||
(while (cdr last)
|
||
(setq last (cdr last)))
|
||
(setcdr last clist))))
|
||
;; Add C lang tokens as a sub menu
|
||
(if clist
|
||
(setq toplist (cons (cons "C" clist) toplist))))
|
||
;;
|
||
toplist
|
||
))
|
||
|
||
;(defvar cc-imenu-pike-generic-expression
|
||
; ())
|
||
; FIXME: Please contribute one!
|
||
|
||
(defun cc-imenu-init (mode-generic-expression
|
||
&optional mode-create-index-function)
|
||
;; This function does not do any hidden buffer changes.
|
||
(setq imenu-generic-expression mode-generic-expression
|
||
imenu-case-fold-search nil)
|
||
(when mode-create-index-function
|
||
(setq imenu-create-index-function mode-create-index-function)))
|
||
|
||
|
||
(cc-provide 'cc-menus)
|
||
|
||
;;; arch-tag: f6b60933-91f0-4145-ab44-70ca6d1b919b
|
||
;;; cc-menus.el ends here
|