[xemacs-hg @ 2001-06-10 10:42:16 by ben] ------ signal-code changes ------ data.c, device-tty.c, emacs.c, floatfns.c, linuxplay.c, nas.c, process-unix.c, signal.c, sunplay.c, sysdep.c, syssignal.h: use EMACS_SIGNAL everywhere instead of playing preprocessing games with signal(). s\windowsnt.h, s\mingw32.h, syssignal.h: Remove mswindows signal code from s+m headers and move to syssignal.h as one of the five ways of signal handling, instead of playing preprocessing games. fileio.c, sysdep.c: Rename sys_do_signal to qxe_reliable_signal. signal.c, process-unix.c, profile.c: Create set_timeout_signal(); use instead of just EMACS_SIGNAL to establish a signal handler on a timeout signal; this does special things under Cygwin. nt.c: Eliminate term_ntproc(), which is blank; used as a SIGABRT handler, which was wrong anyway. nt.c, win32.c: Move signal code from nt.c to win32.c, since Cygwin needs it too when dealing with timeout signals. s\cygwin32.h: Define CYGWIN_BROKEN_SIGNALS. ------ other changes ------ s\mingw32.h: Fix problems with NOT_C_CODE being in the wrong place and excluding defines needed when building Makefile.in.in. filelock.c, mule-canna.c, mule-ccl.c, mule-ccl.h, ralloc.c, unexalpha.c, unexapollo.c, unexcw.c, unexelfsgi.c, unexnt.c, unexsni.c, s\aix3-1.h, s\bsd4-1.h, s\bsd4-2.h, s\bsd4-3.h, s\cxux.h, s\cygwin32.h, s\dgux.h, s\dgux5-4r2.h, s\dgux5-4r3.h, s\dgux5-4r4.h, s\ewsux5r4.h, s\gnu.h, s\hpux.h, s\iris3-5.h, s\iris3-6.h, s\irix3-3.h, s\linux.h, s\mingw32.h, s\newsos5.h, s\nextstep.h, s\ptx.h, s\riscix1-1.h, s\riscix1-2.h, s\rtu.h, s\sco4.h, s\sco5.h, s\template.h, s\ultrix.h, s\umax.h, s\umips.h, s\unipl5-0.h, s\unipl5-2.h, s\usg5-0.h, s\usg5-2-2.h, s\usg5-2.h, s\usg5-3.h, s\usg5-4.h, s\windowsnt.h, s\xenix.h: Rename 'GNU Emacs' to XEmacs in the copyright and comments. nas.c: Stylistic cleanup. Avoid preprocessing games with names such as play_sound_file. ------ signal-code changes ------ data.c, device-tty.c, emacs.c, floatfns.c, linuxplay.c, nas.c, process-unix.c, signal.c, sunplay.c, sysdep.c, syssignal.h: use EMACS_SIGNAL everywhere instead of playing preprocessing games with signal(). s\windowsnt.h, s\mingw32.h, syssignal.h: Remove mswindows signal code from s+m headers and move to syssignal.h as one of the five ways of signal handling, instead of playing preprocessing games. fileio.c, sysdep.c: Rename sys_do_signal to qxe_reliable_signal. signal.c, process-unix.c, profile.c: Create set_timeout_signal(); use instead of just EMACS_SIGNAL to establish a signal handler on a timeout signal; this does special things under Cygwin. nt.c: Eliminate term_ntproc(), which is blank; used as a SIGABRT handler, which was wrong anyway. nt.c, win32.c: Move signal code from nt.c to win32.c, since Cygwin needs it too when dealing with timeout signals. s\cygwin32.h: Define CYGWIN_BROKEN_SIGNALS. ------ other changes ------ s\mingw32.h: Fix problems with NOT_C_CODE being in the wrong place and excluding defines needed when building Makefile.in.in. filelock.c, mule-canna.c, mule-ccl.c, mule-ccl.h, ralloc.c, unexalpha.c, unexapollo.c, unexcw.c, unexelfsgi.c, unexnt.c, unexsni.c, s\aix3-1.h, s\bsd4-1.h, s\bsd4-2.h, s\bsd4-3.h, s\cxux.h, s\cygwin32.h, s\dgux.h, s\dgux5-4r2.h, s\dgux5-4r3.h, s\dgux5-4r4.h, s\ewsux5r4.h, s\gnu.h, s\hpux.h, s\iris3-5.h, s\iris3-6.h, s\irix3-3.h, s\linux.h, s\mingw32.h, s\newsos5.h, s\nextstep.h, s\ptx.h, s\riscix1-1.h, s\riscix1-2.h, s\rtu.h, s\sco4.h, s\sco5.h, s\template.h, s\ultrix.h, s\umax.h, s\umips.h, s\unipl5-0.h, s\unipl5-2.h, s\usg5-0.h, s\usg5-2-2.h, s\usg5-2.h, s\usg5-3.h, s\usg5-4.h, s\windowsnt.h, s\xenix.h: Rename 'GNU Emacs' to XEmacs in the copyright and comments. nas.c: Stylistic cleanup. Avoid preprocessing games with names such as play_sound_file. xemacs-faq.texi: Update sections on Windows and MacOS availability. alist.el, apropos.el, autoload.el, bytecomp.el, cl-compat.el, cl-extra.el, cl-macs.el, cl-seq.el, cl.el, cmdloop.el, cus-edit.el, derived.el, gpm.el, itimer.el, lisp-mode.el, shadow.el, version.el, wid-browse.el: Rename 'GNU Emacs' to XEmacs in the copyright. Fix other references to GNU Emacs that should be XEmacs or just Emacs. files.el: Fix warning. simple.el: transpose-line-up/down will now move the region up or down by a line if active. cvtmail.c, fakemail.c, gnuserv.c, gnuserv.h, gnuslib.c, make-msgfile.c, make-path.c, pop.c, pop.h, profile.c, tcp.c: Rename 'GNU Emacs' to XEmacs in the copyright. Fix comments in similar ways. digest-doc.c, sorted-doc.c: Fix program and author name to reflect XEmacs.

;;; symbol-syntax.el --- find chars with symbol syntax

;; Copyright (C) 1992, 1993, 1997 Free Software Foundation, Inc.
;; Copyright (C) 1995 Sun Microsystems.

;; Author: JBW, JBW@_CORTEZ
;; Created: Wed Jun 20 15:15:34 1990
;; Maintainer: XEmacs Development Team
;; Keywords: matching

;; This file is part of XEmacs.

;; XEmacs 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.

;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the 
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Synched up with: Not in FSF.

;;; Commentary:

;; Last modified by: Ben Wing, ben@xemacs.org
;; Last modified on: Mon Oct  2 02:32:05 GMT 1995

;;; Code:

(defvar symbol-syntax-table-alist nil)
;;  '((c-mode-syntax-table)
;;    (emacs-lisp-mode-syntax-table)
;;    (lisp-mode-syntax-table)
;;    (text-mode-syntax-table)))

(defun update-symbol-syntax-table-alist ()
  (let ((alist symbol-syntax-table-alist)
	item)
    (while (consp alist)
      (cond ((null (car alist))
	     (error "Missing alist item"))
	    ((null (car (car alist)))
	     (error "Alist item with null car"))
	    ;; this functionality not used
	    ((symbolp (setq item (car (car alist))))
	     (or (null (cdr (car alist)))
		 (error "Alist item expected to have null cdr"))
	     (while (symbolp item)
	       (setq item (symbol-value item)))
	     (setcar (car alist) item)))
      (cond ((not (syntax-table-p (car (car alist))))
	     (error "Alist item car expected to be symbol table"))
	    ((null (cdr (car alist)))
	     (setcdr (car alist)
		     (make-symbol-syntax-table (car (car alist))))))
      (setq alist (cdr alist)))))

(defun get-symbol-syntax-table (norm-table)
  (let (result)
    (if (setq result (assq norm-table symbol-syntax-table-alist))
	nil
      (update-symbol-syntax-table-alist)
      (if (setq result (assq norm-table symbol-syntax-table-alist))
	  nil
	(setq symbol-syntax-table-alist
	      (cons (list norm-table)
		    symbol-syntax-table-alist))
	(update-symbol-syntax-table-alist)
	(or (setq result (assq norm-table symbol-syntax-table-alist))
	    (error "Syntax table missing from symbol-syntax-table-alist"))))
    (or (setq result (cdr result))
	(error "Alist item has null cdr"))
    (or (syntax-table-p result)
	(error "Non-syntax-table item in alist"))
    result))

(defun make-symbol-syntax-table (in-table)
  (let ((out-table (copy-syntax-table in-table)))
    (map-syntax-table
     #'(lambda (key value)
	 (if (eq ?_ (char-syntax-from-code value))
	     (put-char-table key (set-char-syntax-in-code value ?w)
			     out-table))
	 nil)
     out-table)
    out-table))

;; stuff for examining contents of syntax tables
;;(show-chars-with-syntax
;; '(c-mode-syntax-table
;;   emacs-lisp-mode-syntax-table
;;   lisp-mode-syntax-table
;;   text-mode-syntax-table)
;; ?_)

(defun show-chars-with-syntax (tables syntax)
  (let ((schars nil))
    (unwind-protect
	(while (consp tables)
	  (let* ((chars nil)
		 (table-symbol (car tables))
		 (table table-symbol))
	    (or (symbolp table-symbol)
		(error "bad argument non-symbol"))
	    (while (symbolp table)
	      (setq table (symbol-value table)))
	    (map-syntax-table
	     #'(lambda (key value)
		 (if (eq syntax (char-syntax-from-code value))
		     (setq chars (cons key chars)))
		 nil)
	     table)
	    (setq schars (cons (list table-symbol (nreverse chars))
			       schars)))
	  (setq tables (cdr tables))))
    (nreverse schars)))

(provide 'symbol-syntax)

;;; symbol-syntax.el ends here