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- ;;; cc-compat.el --- cc-mode compatibility with c-mode.el confusion
-
- ;; Copyright (C) 1985, 87, 92, 93, 94, 95 Free Software Foundation, Inc.
-
- ;; Author: 1994-1995 Barry A. Warsaw
- ;; Maintainer: cc-mode-help@merlin.cnri.reston.va.us
- ;; Created: August 1994, split from cc-mode.el
- ;; Barry Warsaw Version: 1.5
- ;; 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:
-
- ;; Boring old c-mode.el (BOCM) is confusion and brain melt. cc-mode.el
- ;; is clarity of thought and purity of chi. If you are still unwilling
- ;; to accept enlightenment, this might help, or it may prolong your
- ;; agony.
- ;;
- ;; To use, add the following to your c-mode-hook:
- ;;
- ;; (require 'cc-compat)
- ;; (c-set-style "BOCM")
-
- ;;; Code:
-
-
- ;; In case c-mode.el isn't loaded
- (defvar c-indent-level 2
- "*Indentation of C statements with respect to containing block.")
- (defvar c-brace-imaginary-offset 0
- "*Imagined indentation of a C open brace that actually follows a statement.")
- (defvar c-brace-offset 0
- "*Extra indentation for braces, compared with other text in same context.")
- (defvar c-argdecl-indent 5
- "*Indentation level of declarations of C function arguments.")
- (defvar c-label-offset -2
- "*Offset of C label lines and case statements relative to usual indentation.")
- (defvar c-continued-statement-offset 2
- "*Extra indent for lines not starting new statements.")
- (defvar c-continued-brace-offset 0
- "*Extra indent for substatements that start with open-braces.
- This is in addition to c-continued-statement-offset.")
-
-
-
- ;; these offsets are taken by brute force testing c-mode.el, since
- ;; there's no logic to what it does.
- (let* ((offsets '(c-offsets-alist .
- ((defun-block-intro . cc-block-intro-offset)
- (statement-block-intro . cc-block-intro-offset)
- (defun-open . 0)
- (class-open . 0)
- (inline-open . c-brace-offset)
- (block-open . c-brace-offset)
- (block-close . cc-block-close-offset)
- (brace-list-open . c-brace-offset)
- (substatement-open . cc-substatement-open-offset)
- (substatement . c-continued-statement-offset)
- (knr-argdecl-intro . c-argdecl-indent)
- (case-label . c-label-offset)
- (access-label . c-label-offset)
- (label . c-label-offset)
- ))))
- (c-add-style "BOCM" offsets))
-
-
- (defun cc-block-intro-offset (langelem)
- ;; taken directly from calculate-c-indent confusion
- (save-excursion
- (c-backward-syntactic-ws)
- (if (= (preceding-char) ?{)
- (forward-char -1)
- (goto-char (cdr langelem)))
- (let* ((curcol (save-excursion
- (goto-char (cdr langelem))
- (current-column)))
- (bocm-lossage
- ;; If no previous statement, indent it relative to line
- ;; brace is on. For open brace in column zero, don't let
- ;; statement start there too. If c-indent-level is zero,
- ;; use c-brace-offset + c-continued-statement-offset
- ;; instead. For open-braces not the first thing in a line,
- ;; add in c-brace-imaginary-offset.
- (+ (if (and (bolp) (zerop c-indent-level))
- (+ c-brace-offset c-continued-statement-offset)
- c-indent-level)
- ;; Move back over whitespace before the openbrace. If
- ;; openbrace is not first nonwhite thing on the line,
- ;; add the c-brace-imaginary-offset.
- (progn (skip-chars-backward " \t")
- (if (bolp) 0 c-brace-imaginary-offset))
- ;; If the openbrace is preceded by a parenthesized exp,
- ;; move to the beginning of that; possibly a different
- ;; line
- (progn
- (if (eq (preceding-char) ?\))
- (forward-sexp -1))
- ;; Get initial indentation of the line we are on.
- (current-indentation)))))
- (- bocm-lossage curcol))))
-
-
- (defun cc-block-close-offset (langelem)
- (save-excursion
- (let* ((here (point))
- bracep
- (curcol (progn
- (goto-char (cdr langelem))
- (current-column)))
- (bocm-lossage (progn
- (goto-char (cdr langelem))
- (if (= (following-char) ?{)
- (setq bracep t)
- (goto-char here)
- (beginning-of-line)
- (backward-up-list 1)
- (forward-char 1)
- (c-forward-syntactic-ws))
- (current-column))))
- (- bocm-lossage curcol
- (if bracep 0 c-indent-level)))))
-
-
- (defun cc-substatement-open-offset (langelem)
- (+ c-continued-statement-offset c-continued-brace-offset))
-
-
- (provide 'cc-compat)
-
- ;;; cc-compat.el ends here
-
-