view lisp/symbol-syntax.el @ 1330:4542b72c005e

[xemacs-hg @ 2003-03-01 07:25:26 by ben] build patch Makefile.in.in: Move src deletions to src/Makefile.in.in. dump-paths.el, dumped-lisp.el: Delete. Combine stuff into setup-paths.el. find-paths.el: Removed. Make this file contain generic routines only. Move stuff to compute Emacs roots to setup-paths.el. startup.el: Removed. Move these variables into setup-paths.el. setup-paths.el, startup.el: Removed. Combine all high-level code for computing the paths into setup-paths.el. Create new function startup-find-load-path to encapsulate all logic for computing `load-path'. Eliminate invocation-directory and invocation-name parameters since there is no point (false generality) -- the code references other globals, which cannot be specified. Eliminate some code duplicated between setup-paths.el and startup.el. Clean up the debug-paths code and output load-path in addition. Add logic to paths-emacs-root-p to support separated source and build trees. loadup.el, make-docfile.el, update-elc-2.el, update-elc.el: Rewrite to allow for separated source and build trees, as may occur in MS Windows. NOTE TO BUILD HACKERS: loadup.el, make-docfile.el, update-elc.el and update-elc-2.el made two assumptions that are no longer correct: (1) The source and build trees are in the same place. (2) They can make assumptions about where `.' is. These files now compute the locations of the source and build roots at the top of the file. *ALL* constant file names or path snippets must now be made absolute using expand-file-name and one of these roots. dumped-lisp.el, packages.el: Removed. Remove some unused lists of Lisp files. packages-hardcoded-lisp (empty, in any case) moved to dumped-lisp.el. startup.el: When a compiled init file is out-of-date wrt the uncompiled version, load the uncompiled version and issue a nasty warning. update-elc-2.el: Force touching of auto-autoloads files when REBUILD_AUTOLOADS was set. update-elc.el: Fix code that checks whether dumping is necessary to check against xemacs.dmp, not xemacs.exe, when Unix and pdump. lwlib-Xm.c: Fix compile warning. README, config.inc.samp, xemacs.mak: -- Major reorganization and cleanup. -- Add support for separated build tree and source tree. -- Delete all support for X Windows building, since it's totally bit-rotten and will never be fixed up. Instruct people to use Cygwin if they want such support. make-build-dir: New script to create a skeleton build tree for use with separated build and source tree compilation. m/acorn.h, m/alliant-2800.h, m/alliant.h, m/altos.h, m/amdahl.h, m/arm.h, m/att3b.h, m/aviion.h, m/clipper.h, m/cnvrgnt.h, m/convex.h, m/cydra5.h, m/delta.h, m/delta88k.h, m/dpx2.h, m/elxsi.h, m/ews4800r.h, m/gould.h, m/hp800.h, m/hp9000s300.h, m/i860.h, m/ibmps2-aix.h, m/ibmrs6000.h, m/ibmrt-aix.h, m/ibmrt.h, m/intel386.h, m/iris4d.h, m/iris5d.h, m/iris6d.h, m/irist.h, m/m68k.h, m/masscomp.h, m/mg1.h, m/mips-nec.h, m/mips-siemens.h, m/mips.h, m/nh3000.h, m/nh4000.h, m/ns32000.h, m/plexus.h, m/powerpc.h, m/sequent-ptx.h, m/sequent.h, m/sgi-challenge.h, m/stride.h, m/tad68k.h, m/targon31.h, m/tekxd88.h, m/template.h, m/tower32.h, m/tower32v3.h, m/ustation.h, m/wicat.h, m/xps100.h, data.c, doc.c, editfns.c, emacs.c, lrecord.h, ntheap.c, process-unix.c, sysdep.c, unexec.c: Delete all support for bit-rotten CANNOT_DUMP. Just use pdump. Makefile.in.in: Lots o' cleanup. Use names like LISP, SRC instead of lispdir, srcdir, for consistency with xemacs.mak and the conventions in the rest of the file. Eliminate use of ${...} in favor of $(...), to make it easier to move code between this file and xemacs.mak. Fix dependency handling wrt NEEDTODUMP to eliminate problems some people (e.g. Vin) have been seeing with non-GNU makes. Write a long section about the subtle but oh-so-important differences in dependency processing between nmake, make, and GNU make. Add unicode-encapsulate target, from xemacs.mak. chartab.c, lrecord.h: Fix crash due to attempt to free objects across dump/undump.
author ben
date Sat, 01 Mar 2003 07:25:56 +0000
parents 3ecd8885ac67
children 308d34e9f07d
line wrap: on
line source

;;; 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