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663 lines
24 KiB
EmacsLisp
663 lines
24 KiB
EmacsLisp
;;; cc-styles.el --- support for styles in CC Mode
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;; Copyright (C) 1985, 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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;; 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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;; Free Software Foundation, Inc.
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;; Authors: 2004- Alan Mackenzie
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;; 1998- Martin Stjernholm
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;; 1992-1999 Barry A. Warsaw
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;; 1987 Dave Detlefs
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;; 1987 Stewart Clamen
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;; 1985 Richard M. Stallman
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;; Maintainer: bug-cc-mode@gnu.org
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;; Created: 22-Apr-1997 (split from cc-mode.el)
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;; Version: See cc-mode.el
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;; Keywords: c languages oop
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(eval-when-compile
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(let ((load-path
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(if (and (boundp 'byte-compile-dest-file)
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(stringp byte-compile-dest-file))
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(cons (file-name-directory byte-compile-dest-file) load-path)
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load-path)))
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(load "cc-bytecomp" nil t)))
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(cc-require 'cc-defs)
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(cc-require 'cc-vars)
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(cc-require 'cc-align)
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;; cc-align is only indirectly required: Styles added with
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;; `c-add-style' often contains references to functions defined there.
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;; Silence the compiler.
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(cc-bytecomp-defvar adaptive-fill-first-line-regexp) ; Emacs
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(cc-bytecomp-obsolete-fun make-local-hook) ; Marked obsolete in Emacs 21.1.
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(defvar c-style-alist
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'(("gnu"
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(c-basic-offset . 2)
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(c-comment-only-line-offset . (0 . 0))
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(c-hanging-braces-alist . ((substatement-open before after)
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(arglist-cont-nonempty)))
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(c-offsets-alist . ((statement-block-intro . +)
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(knr-argdecl-intro . 5)
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(substatement-open . +)
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(substatement-label . 0)
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(label . 0)
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(statement-case-open . +)
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(statement-cont . +)
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(arglist-intro . c-lineup-arglist-intro-after-paren)
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(arglist-close . c-lineup-arglist)
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(inline-open . 0)
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(brace-list-open . +)
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(topmost-intro-cont
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. (first c-lineup-topmost-intro-cont
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c-lineup-gnu-DEFUN-intro-cont))))
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(c-special-indent-hook . c-gnu-impose-minimum)
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(c-block-comment-prefix . ""))
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("k&r"
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(c-basic-offset . 5)
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(c-comment-only-line-offset . 0)
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(c-offsets-alist . ((statement-block-intro . +)
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(knr-argdecl-intro . 0)
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(substatement-open . 0)
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(substatement-label . 0)
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(label . 0)
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(statement-cont . +))))
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("bsd"
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(c-basic-offset . 8)
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(c-comment-only-line-offset . 0)
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(c-offsets-alist . ((statement-block-intro . +)
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(knr-argdecl-intro . +)
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(substatement-open . 0)
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(substatement-label . 0)
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(label . 0)
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(statement-cont . +)
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(inline-open . 0)
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(inexpr-class . 0))))
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("stroustrup"
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(c-basic-offset . 4)
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(c-comment-only-line-offset . 0)
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(c-offsets-alist . ((statement-block-intro . +)
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(substatement-open . 0)
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(substatement-label . 0)
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(label . 0)
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(statement-cont . +))))
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("whitesmith"
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(c-basic-offset . 4)
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(c-comment-only-line-offset . 0)
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;; It's obvious that the CC Mode way of choosing anchor positions
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;; doesn't fit this style at all. :P
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(c-offsets-alist . ((defun-open . +)
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(defun-close . c-lineup-whitesmith-in-block)
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(defun-block-intro . (add c-lineup-whitesmith-in-block
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c-indent-multi-line-block))
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(class-open . +)
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(class-close . +)
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(inline-open . +)
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(inline-close . c-lineup-whitesmith-in-block)
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(knr-argdecl-intro . +)
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(block-open . 0) ; Get indentation from `statement' instead.
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(block-close . c-lineup-whitesmith-in-block)
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(brace-list-open . +)
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(brace-list-close . c-lineup-whitesmith-in-block)
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(brace-list-intro . (add c-lineup-whitesmith-in-block
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c-indent-multi-line-block))
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(brace-list-entry . (add c-lineup-after-whitesmith-blocks
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c-indent-multi-line-block))
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(brace-entry-open . (add c-lineup-after-whitesmith-blocks
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c-indent-multi-line-block))
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(statement . (add c-lineup-after-whitesmith-blocks
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c-indent-multi-line-block))
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(statement-block-intro . (add c-lineup-whitesmith-in-block
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c-indent-multi-line-block))
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(substatement-open . +)
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(substatement-label . +)
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(label . 0)
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(arglist-intro . (add c-lineup-whitesmith-in-block
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c-indent-multi-line-block))
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(arglist-cont . (add c-lineup-after-whitesmith-blocks
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c-indent-multi-line-block))
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(arglist-cont-nonempty . (add c-lineup-whitesmith-in-block
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c-indent-multi-line-block))
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(arglist-close . c-lineup-whitesmith-in-block)
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(inclass . c-lineup-whitesmith-in-block)
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(extern-lang-open . +)
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(namespace-open . +)
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(module-open . +)
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(composition-open . +)
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(extern-lang-close . +)
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(namespace-close . +)
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(module-close . +)
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(composition-close . +)
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(inextern-lang . c-lineup-whitesmith-in-block)
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(innamespace . c-lineup-whitesmith-in-block)
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(inmodule . c-lineup-whitesmith-in-block)
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(incomposition . c-lineup-whitesmith-in-block)
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(inexpr-class . 0))))
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("ellemtel"
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(c-basic-offset . 3)
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(c-comment-only-line-offset . 0)
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(c-hanging-braces-alist . ((substatement-open before after)
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(arglist-cont-nonempty)))
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(c-offsets-alist . ((topmost-intro . 0)
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(substatement . +)
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(substatement-open . 0)
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(case-label . +)
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(access-label . -)
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(inclass . +)
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(inline-open . 0))))
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("linux"
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(c-basic-offset . 8)
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(c-comment-only-line-offset . 0)
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(c-hanging-braces-alist . ((brace-list-open)
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(brace-entry-open)
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(substatement-open after)
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(block-close . c-snug-do-while)
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(arglist-cont-nonempty)))
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(c-cleanup-list . (brace-else-brace))
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(c-offsets-alist . ((statement-block-intro . +)
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(knr-argdecl-intro . 0)
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(substatement-open . 0)
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(substatement-label . 0)
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(label . 0)
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(statement-cont . +))))
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("python"
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(indent-tabs-mode . t)
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(fill-column . 78)
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(c-basic-offset . 8)
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(c-offsets-alist . ((substatement-open . 0)
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(inextern-lang . 0)
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(arglist-intro . +)
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(knr-argdecl-intro . +)))
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(c-hanging-braces-alist . ((brace-list-open)
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(brace-list-intro)
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(brace-list-close)
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(brace-entry-open)
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(substatement-open after)
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(block-close . c-snug-do-while)
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(arglist-cont-nonempty)))
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(c-block-comment-prefix . ""))
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("java"
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(c-basic-offset . 4)
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(c-comment-only-line-offset . (0 . 0))
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;; the following preserves Javadoc starter lines
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(c-offsets-alist . ((inline-open . 0)
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(topmost-intro-cont . +)
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(statement-block-intro . +)
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(knr-argdecl-intro . 5)
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(substatement-open . +)
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(substatement-label . +)
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(label . +)
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(statement-case-open . +)
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(statement-cont . +)
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(arglist-intro . c-lineup-arglist-intro-after-paren)
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(arglist-close . c-lineup-arglist)
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(access-label . 0)
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(inher-cont . c-lineup-java-inher)
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(func-decl-cont . c-lineup-java-throws))))
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;; awk style exists primarily for auto-newline settings. Otherwise it's
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;; pretty much like k&r.
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("awk"
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(c-basic-offset . 4)
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(c-comment-only-line-offset . 0)
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(c-hanging-braces-alist . ((defun-open after)
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(defun-close . c-snug-1line-defun-close)
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(substatement-open after)
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(block-close . c-snug-do-while)
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(arglist-cont-nonempty)))
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(c-hanging-semi&comma-criteria . nil)
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(c-cleanup-list . nil) ; You might want one-liner-defun here.
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(c-offsets-alist . ((statement-block-intro . +)
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(substatement-open . 0)
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(statement-cont . +))))
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)
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"Styles of indentation.
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Elements of this alist are of the form:
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(STYLE-STRING [BASE-STYLE] (VARIABLE . VALUE) [(VARIABLE . VALUE) ...])
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where STYLE-STRING is a short descriptive string used to select a
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style, VARIABLE is any Emacs variable, and VALUE is the intended value
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for that variable when using the selected style.
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Optional BASE-STYLE if present, is a string and must follow
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STYLE-STRING. BASE-STYLE names a style that this style inherits from.
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By default, all styles inherit from the \"user\" style, which is
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computed at run time. Style loops generate errors.
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Two variables are treated specially. When VARIABLE is
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`c-offsets-alist', the VALUE is a list containing elements of the
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form:
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(SYNTACTIC-SYMBOL . OFFSET)
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as described in `c-offsets-alist'. These are passed directly to
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`c-set-offset' so there is no need to set every syntactic symbol in
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your style, only those that are different from the default.
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When VARIABLE is `c-special-indent-hook', its VALUE is added to
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`c-special-indent-hook' using `add-hook'. If VALUE is a list, each
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element of the list is added with `add-hook'.
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Do not change this variable directly. Use the function `c-add-style'
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to add new styles or modify existing styles (it is not a good idea to
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modify existing styles -- you should create a new style that inherits
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the existing style).")
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;; Functions that manipulate styles
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(defun c-set-style-1 (conscell dont-override)
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;; Set the style for one variable
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(let ((attr (car conscell))
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(val (cdr conscell)))
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(cond
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;; first special variable
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((eq attr 'c-offsets-alist)
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(let ((offsets (cond ((eq dont-override t)
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c-offsets-alist)
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(dont-override
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(default-value 'c-offsets-alist)))))
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(mapcar (lambda (langentry)
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(let ((langelem (car langentry))
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(offset (cdr langentry)))
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(unless (assq langelem offsets)
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(c-set-offset langelem offset))))
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val)))
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;; second special variable
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((eq attr 'c-special-indent-hook)
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;; Maybe we should ignore dont-override here and always add new
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;; hooks?
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(unless (cond ((eq dont-override t)
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c-special-indent-hook)
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(dont-override
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(default-value 'c-special-indent-hook)))
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(if (listp val)
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(mapcar (lambda (func)
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(add-hook 'c-special-indent-hook func t t))
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val)
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(add-hook 'c-special-indent-hook val t t))))
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;; all other variables
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(t (when (or (not dont-override)
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(not (memq attr c-style-variables))
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(eq (if (eq dont-override t)
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(symbol-value attr)
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(default-value attr))
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'set-from-style))
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(set attr val)
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;; Must update a number of other variables if
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;; c-comment-prefix-regexp is set.
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(if (eq attr 'c-comment-prefix-regexp)
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(c-setup-paragraph-variables)))))))
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(defun c-get-style-variables (style basestyles)
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;; Return all variables in a style by resolving inheritances.
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(if (not style)
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(copy-alist c-fallback-style)
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(let ((vars (cdr (or (assoc (downcase style) c-style-alist)
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(assoc (upcase style) c-style-alist)
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(assoc style c-style-alist)
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(progn
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(c-benign-error "Undefined style: %s" style)
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nil)))))
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(let ((base (and (stringp (car-safe vars))
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(prog1
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(downcase (car vars))
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(setq vars (cdr vars))))))
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(if (memq base basestyles)
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(c-benign-error "Style loop detected: %s in %s" base basestyles)
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(nconc (c-get-style-variables base (cons base basestyles))
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(copy-alist vars)))))))
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(defvar c-set-style-history nil)
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;;;###autoload
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(defun c-set-style (stylename &optional dont-override)
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"Set the current buffer to use the style STYLENAME.
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STYLENAME, a string, must be an existing CC Mode style - These are contained
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in the variable `c-style-alist'.
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The variable `c-indentation-style' will get set to STYLENAME.
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\"Setting the style\" is done by setting CC Mode's \"style variables\" to the
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values indicated by the pertinent entry in `c-style-alist'. Other variables
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might get set too.
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If DONT-OVERRIDE is neither nil nor t, style variables whose default values
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have been set (more precisely, whose default values are not the symbol
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`set-from-style') will not be changed. This avoids overriding global settings
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done in ~/.emacs. It is useful to call c-set-style from a mode hook in this
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way.
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If DONT-OVERRIDE is t, style variables that already have values (i.e., whose
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values are not the symbol `set-from-style') will not be overridden. CC Mode
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calls c-set-style internally in this way whilst initializing a buffer; if
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cc-set-style is called like this from anywhere else, it will usually behave as
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a null operation."
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(interactive
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(list (let ((completion-ignore-case t)
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(prompt (format "Which %s indentation style? "
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mode-name)))
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(completing-read prompt c-style-alist nil t nil
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'c-set-style-history
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c-indentation-style))))
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(or c-buffer-is-cc-mode
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(error "Buffer %s is not a CC Mode buffer (c-set-style)" (buffer-name)))
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(or (stringp stylename)
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(error "Argument to c-set-style was not a string"))
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(c-initialize-builtin-style)
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(let ((vars (c-get-style-variables stylename nil)))
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(unless dont-override
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;; Since we always add to c-special-indent-hook we must reset it
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;; first, or else the hooks from the preceding style will
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;; remain. This is not necessary for c-offsets-alist, since
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;; c-get-style-variables contains every valid offset type in the
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;; fallback entry.
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(setq c-special-indent-hook
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(default-value 'c-special-indent-hook)))
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(mapc (lambda (elem)
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(c-set-style-1 elem dont-override))
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;; Need to go through the variables backwards when we
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;; don't override any settings.
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(if (eq dont-override t) (nreverse vars) vars)))
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(setq c-indentation-style stylename)
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(c-keep-region-active))
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;;;###autoload
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(defun c-add-style (style description &optional set-p)
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"Adds a style to `c-style-alist', or updates an existing one.
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STYLE is a string identifying the style to add or update. DESCRIPTION
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is an association list describing the style and must be of the form:
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([BASESTYLE] (VARIABLE . VALUE) [(VARIABLE . VALUE) ...])
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See the variable `c-style-alist' for the semantics of BASESTYLE,
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VARIABLE and VALUE. This function also sets the current style to
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STYLE using `c-set-style' if the optional SET-P flag is non-nil."
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(interactive
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(let ((stylename (completing-read "Style to add: " c-style-alist
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nil nil nil 'c-set-style-history))
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(descr (eval-minibuffer "Style description: ")))
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(list stylename descr
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(y-or-n-p "Set the style too? "))))
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(setq style (downcase style))
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(let ((s (assoc style c-style-alist)))
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(if s
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(setcdr s (copy-alist description)) ; replace
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(setq c-style-alist (cons (cons style description) c-style-alist))))
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(and set-p (c-set-style style)))
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(defvar c-read-offset-history nil)
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(defun c-read-offset (langelem)
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;; read new offset value for LANGELEM from minibuffer. return a
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;; valid value only
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(let* ((oldoff (cdr-safe (or (assq langelem c-offsets-alist)
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(assq langelem (get 'c-offsets-alist
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'c-stylevar-fallback)))))
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(symname (symbol-name langelem))
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(defstr (format "(default %s): " oldoff))
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(errmsg (concat "Offset must be int, func, var, vector, list, "
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"or [+,-,++,--,*,/] "
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defstr))
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(prompt (concat symname " offset " defstr))
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(keymap (make-sparse-keymap))
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(minibuffer-completion-table obarray)
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(minibuffer-completion-predicate 'fboundp)
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offset input)
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;; In principle completing-read is used here, but SPC is unbound
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;; to make it less annoying to enter lists.
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(set-keymap-parent keymap minibuffer-local-completion-map)
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(define-key keymap " " 'self-insert-command)
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(while (not offset)
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(setq input (read-from-minibuffer prompt nil keymap t
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'c-read-offset-history
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(format "%s" oldoff)))
|
||
(if (c-valid-offset input)
|
||
(setq offset input)
|
||
;; error, but don't signal one, keep trying
|
||
;; to read an input value
|
||
(ding)
|
||
(setq prompt errmsg)))
|
||
offset))
|
||
|
||
;;;###autoload
|
||
(defun c-set-offset (symbol offset &optional ignored)
|
||
"Change the value of a syntactic element symbol in `c-offsets-alist'.
|
||
SYMBOL is the syntactic element symbol to change and OFFSET is the new
|
||
offset for that syntactic element. The optional argument is not used
|
||
and exists only for compatibility reasons."
|
||
(interactive
|
||
(let* ((langelem
|
||
(intern (completing-read
|
||
(concat "Syntactic symbol to change"
|
||
(if current-prefix-arg " or add" "")
|
||
": ")
|
||
(mapcar
|
||
#'(lambda (langelem)
|
||
(cons (format "%s" (car langelem)) nil))
|
||
(get 'c-offsets-alist 'c-stylevar-fallback))
|
||
nil (not current-prefix-arg)
|
||
;; initial contents tries to be the last element
|
||
;; on the syntactic analysis list for the current
|
||
;; line
|
||
(and c-buffer-is-cc-mode
|
||
(c-save-buffer-state
|
||
((syntax (c-guess-basic-syntax))
|
||
(len (length syntax))
|
||
(ic (format "%s" (car (nth (1- len) syntax)))))
|
||
(cons ic 0)))
|
||
)))
|
||
(offset (c-read-offset langelem)))
|
||
(list langelem offset current-prefix-arg)))
|
||
;; sanity check offset
|
||
(if (c-valid-offset offset)
|
||
(let ((entry (assq symbol c-offsets-alist)))
|
||
(if entry
|
||
(setcdr entry offset)
|
||
(if (assq symbol (get 'c-offsets-alist 'c-stylevar-fallback))
|
||
(setq c-offsets-alist (cons (cons symbol offset)
|
||
c-offsets-alist))
|
||
(c-benign-error "%s is not a valid syntactic symbol" symbol))))
|
||
(c-benign-error "Invalid indentation setting for symbol %s: %S"
|
||
symbol offset))
|
||
(c-keep-region-active))
|
||
|
||
|
||
(defun c-setup-paragraph-variables ()
|
||
"Fix things up for paragraph recognition and filling inside comments and
|
||
strings by incorporating the values of `c-comment-prefix-regexp',
|
||
`sentence-end', `paragraph-start' and `paragraph-separate' in the relevant
|
||
variables."
|
||
|
||
(interactive)
|
||
(or c-buffer-is-cc-mode
|
||
(error "Buffer %s is not a CC Mode buffer (c-setup-paragraph-variables)"
|
||
(buffer-name)))
|
||
;; Set up the values for use in comments.
|
||
(setq c-current-comment-prefix
|
||
(if (listp c-comment-prefix-regexp)
|
||
(cdr-safe (or (assoc major-mode c-comment-prefix-regexp)
|
||
(assoc 'other c-comment-prefix-regexp)))
|
||
c-comment-prefix-regexp))
|
||
|
||
(let* ((empty-is-prefix (string-match c-current-comment-prefix ""))
|
||
(nonws-comment-line-prefix
|
||
(concat "\\(" c-current-comment-prefix "\\)[ \t]*"))
|
||
(comment-line-prefix (concat "[ \t]*" nonws-comment-line-prefix))
|
||
(blank-or-comment-line-prefix
|
||
(concat "[ \t]*"
|
||
(if empty-is-prefix "" "\\(")
|
||
nonws-comment-line-prefix
|
||
(if empty-is-prefix "" "\\)?"))))
|
||
|
||
(setq paragraph-start (concat blank-or-comment-line-prefix
|
||
c-paragraph-start
|
||
"\\|"
|
||
page-delimiter)
|
||
paragraph-separate (concat blank-or-comment-line-prefix
|
||
c-paragraph-separate
|
||
"\\|"
|
||
page-delimiter)
|
||
paragraph-ignore-fill-prefix t
|
||
adaptive-fill-mode t
|
||
adaptive-fill-regexp
|
||
(concat comment-line-prefix
|
||
(if (default-value 'adaptive-fill-regexp)
|
||
(concat "\\("
|
||
(default-value 'adaptive-fill-regexp)
|
||
"\\)")
|
||
"")))
|
||
|
||
(when (boundp 'adaptive-fill-first-line-regexp)
|
||
;; XEmacs adaptive fill mode doesn't have this.
|
||
(make-local-variable 'adaptive-fill-first-line-regexp)
|
||
(setq adaptive-fill-first-line-regexp
|
||
(concat "\\`" comment-line-prefix
|
||
;; Maybe we should incorporate the old value here,
|
||
;; but then we have to do all sorts of kludges to
|
||
;; deal with the \` and \' it probably contains.
|
||
"\\'"))))
|
||
|
||
;; Set up the values for use in strings. These are the default
|
||
;; paragraph-start/separate values, enhanced to accept escaped EOLs as
|
||
;; whitespace. Used in c-beginning/end-of-sentence-in-string in cc-cmds.
|
||
(setq c-string-par-start
|
||
;;(concat "\\(" (default-value 'paragraph-start) "\\)\\|[ \t]*\\\\$"))
|
||
"\f\\|[ \t]*\\\\?$")
|
||
(setq c-string-par-separate
|
||
;;(concat "\\(" (default-value 'paragraph-separate) "\\)\\|[ \t]*\\\\$"))
|
||
"[ \t\f]*\\\\?$")
|
||
(setq c-sentence-end-with-esc-eol
|
||
(concat "\\(\\(" (c-default-value-sentence-end) "\\)"
|
||
;; N.B.: "$" would be invalid when not enclosed like "\\($\\)".
|
||
"\\|" "[.?!][]\"')}]* ?\\\\\\($\\)[ \t\n]*"
|
||
"\\)")))
|
||
|
||
|
||
;; Helper for setting up Filladapt mode. It's not used by CC Mode itself.
|
||
|
||
(cc-bytecomp-defvar filladapt-token-table)
|
||
(cc-bytecomp-defvar filladapt-token-match-table)
|
||
(cc-bytecomp-defvar filladapt-token-conversion-table)
|
||
|
||
(defun c-setup-filladapt ()
|
||
"Convenience function to configure Kyle E. Jones' Filladapt mode for
|
||
CC Mode by making sure the proper entries are present on
|
||
`filladapt-token-table', `filladapt-token-match-table', and
|
||
`filladapt-token-conversion-table'. This is intended to be used on
|
||
`c-mode-common-hook' or similar."
|
||
;; This function is intended to be used explicitly by the end user
|
||
;; only.
|
||
|
||
;; The default configuration already handles C++ comments, but we
|
||
;; need to add handling of C block comments. A new filladapt token
|
||
;; `c-comment' is added for that.
|
||
(let (p)
|
||
(setq p filladapt-token-table)
|
||
(while (and p (not (eq (car-safe (cdr-safe (car-safe p))) 'c-comment)))
|
||
(setq p (cdr-safe p)))
|
||
(if p
|
||
(setcar (car p) c-current-comment-prefix)
|
||
(setq filladapt-token-table
|
||
(append (list (car filladapt-token-table)
|
||
(list c-current-comment-prefix 'c-comment))
|
||
(cdr filladapt-token-table)))))
|
||
(unless (assq 'c-comment filladapt-token-match-table)
|
||
(setq filladapt-token-match-table
|
||
(append '((c-comment c-comment))
|
||
filladapt-token-match-table)))
|
||
(unless (assq 'c-comment filladapt-token-conversion-table)
|
||
(setq filladapt-token-conversion-table
|
||
(append '((c-comment . exact))
|
||
filladapt-token-conversion-table))))
|
||
|
||
|
||
(defun c-initialize-builtin-style ()
|
||
;; Dynamically append the default value of most variables. This is
|
||
;; crucial because future c-set-style calls will always reset the
|
||
;; variables first to the `cc-mode' style before instituting the new
|
||
;; style. Only do this once!
|
||
(unless (get 'c-initialize-builtin-style 'is-run)
|
||
(put 'c-initialize-builtin-style 'is-run t)
|
||
;;(c-initialize-cc-mode)
|
||
(unless (assoc "user" c-style-alist)
|
||
(let ((vars c-style-variables) var val uservars)
|
||
(while vars
|
||
(setq var (car vars)
|
||
val (symbol-value var)
|
||
vars (cdr vars))
|
||
(cond ((eq var 'c-offsets-alist)
|
||
(or (null val)
|
||
(setq uservars (cons (cons 'c-offsets-alist val)
|
||
uservars))))
|
||
((not (eq val 'set-from-style))
|
||
(setq uservars (cons (cons var val)
|
||
uservars)))))
|
||
(c-add-style "user" uservars)))
|
||
(unless (assoc "cc-mode" c-style-alist)
|
||
(c-add-style "cc-mode" '("user")))
|
||
(if c-style-variables-are-local-p
|
||
(c-make-styles-buffer-local))))
|
||
|
||
(defun c-make-styles-buffer-local (&optional this-buf-only-p)
|
||
"Make all CC Mode style variables buffer local.
|
||
If `this-buf-only-p' is non-nil, the style variables will be made
|
||
buffer local only in the current buffer. Otherwise they'll be made
|
||
permanently buffer local in any buffer that changes their values.
|
||
|
||
The buffer localness of the style variables are normally controlled
|
||
with the variable `c-style-variables-are-local-p', so there's seldom
|
||
any reason to call this function directly."
|
||
|
||
;; style variables
|
||
(let ((func (if this-buf-only-p
|
||
'make-local-variable
|
||
'make-variable-buffer-local))
|
||
(varsyms (cons 'c-indentation-style (copy-alist c-style-variables))))
|
||
(delq 'c-special-indent-hook varsyms)
|
||
(mapc func varsyms)
|
||
;; Hooks must be handled specially
|
||
(if this-buf-only-p
|
||
(make-local-hook 'c-special-indent-hook)
|
||
(with-no-warnings (make-variable-buffer-local 'c-special-indent-hook))
|
||
(setq c-style-variables-are-local-p t))
|
||
))
|
||
|
||
|
||
|
||
(cc-provide 'cc-styles)
|
||
|
||
;; arch-tag: c764f61a-96ba-484a-a68f-101c0e9d5d2c
|
||
;;; cc-styles.el ends here
|