[xemacs-hg @ 2002-05-05 11:30:15 by ben] syntax cache, 8-bit-format, lots of code cleanup README.packages: Update info about --package-path. i.c: Create an inheritable event and pass it on to XEmacs, so that ^C can be handled properly. Intercept ^C and signal the event. "Stop Build" in VC++ now works. bytecomp-runtime.el: Doc string changes. compat.el: Some attempts to redo this to make it truly useful and fix the "multiple versions interacting with each other" problem. Not yet done. Currently doesn't work. files.el: Use with-obsolete-variable to avoid warnings in new revert-buffer code. xemacs.mak: Split up CFLAGS into a version without flags specifying the C library. The problem seems to be that minitar depends on zlib, which depends specifically on libc.lib, not on any of the other C libraries. Unless you compile with libc.lib, you get errors -- specifically, no _errno in the other libraries, which must make it something other than an int. (#### But this doesn't seem to obtain in XEmacs, which also uses zlib, and can be linked with any of the C libraries. Maybe zlib is used differently and doesn't need errno, or maybe XEmacs provides an int errno; ... I don't understand. Makefile.in.in: Fix so that packages are around when testing. abbrev.c, alloc.c, buffer.c, buffer.h, bytecode.c, callint.c, casefiddle.c, casetab.c, casetab.h, charset.h, chartab.c, chartab.h, cmds.c, console-msw.h, console-stream.c, console-x.c, console.c, console.h, data.c, device-msw.c, device.c, device.h, dialog-msw.c, dialog-x.c, dired-msw.c, dired.c, doc.c, doprnt.c, dumper.c, editfns.c, elhash.c, emacs.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, events.c, events.h, extents.c, extents.h, faces.c, file-coding.c, file-coding.h, fileio.c, fns.c, font-lock.c, frame-gtk.c, frame-msw.c, frame-x.c, frame.c, frame.h, glade.c, glyphs-gtk.c, glyphs-msw.c, glyphs-msw.h, glyphs-x.c, glyphs.c, glyphs.h, gui-msw.c, gui-x.c, gui.h, gutter.h, hash.h, indent.c, insdel.c, intl-win32.c, intl.c, keymap.c, lisp-disunion.h, lisp-union.h, lisp.h, lread.c, lrecord.h, lstream.c, lstream.h, marker.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, menubar.c, minibuf.c, mule-ccl.c, mule-charset.c, mule-coding.c, mule-wnnfns.c, nas.c, objects-msw.c, objects-x.c, opaque.c, postgresql.c, print.c, process-nt.c, process-unix.c, process.c, process.h, profile.c, rangetab.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-x.c, redisplay.c, redisplay.h, regex.c, regex.h, scrollbar-msw.c, search.c, select-x.c, specifier.c, specifier.h, symbols.c, symsinit.h, syntax.c, syntax.h, syswindows.h, tests.c, text.c, text.h, tooltalk.c, ui-byhand.c, ui-gtk.c, unicode.c, win32.c, window.c: Another big Ben patch. -- FUNCTIONALITY CHANGES: add partial support for 8-bit-fixed, 16-bit-fixed, and 32-bit-fixed formats. not quite done yet. (in particular, needs functions to actually convert the buffer.) NOTE: lots of changes to regex.c here. also, many new *_fmt() inline funs that take an Internal_Format argument. redo syntax cache code. make the cache per-buffer; keep the cache valid across calls to functions that use it. also keep it valid across insertions/deletions and extent changes, as much as is possible. eliminate the junky regex-reentrancy code by passing in the relevant lisp info to the regex routines as local vars. add general mechanism in extents code for signalling extent changes. fix numerous problems with the case-table implementation; yoshiki never properly transferred many algorithms from old-style to new-style case tables. redo char tables to support a default argument, so that mapping only occurs over changed args. change many chartab functions to accept Lisp_Object instead of Lisp_Char_Table *. comment out the code in font-lock.c by default, because font-lock.el no longer uses it. we should consider eliminating it entirely. Don't output bell as ^G in console-stream when not a TTY. add -mswindows-termination-handle to interface with i.c, so we can properly kill a build. add more error-checking to buffer/string macros. add some additional buffer_or_string_() funs. -- INTERFACE CHANGES AFFECTING MORE CODE: switch the arguments of write_c_string and friends to be consistent with write_fmt_string, which must have printcharfun first. change BI_* macros to BYTE_* for increased clarity; similarly for bi_* local vars. change VOID_TO_LISP to be a one-argument function. eliminate no-longer-needed CVOID_TO_LISP. -- char/string macro changes: rename MAKE_CHAR() to make_emchar() for slightly less confusion with make_char(). (The former generates an Emchar, the latter a Lisp object. Conceivably we should rename make_char() -> wrap_char() and similarly for make_int(), make_float().) Similar changes for other *CHAR* macros -- we now consistently use names with `emchar' whenever we are working with Emchars. Any remaining name with just `char' always refers to a Lisp object. rename macros with XSTRING_* to string_* except for those that reference actual fields in the Lisp_String object, following conventions used elsewhere. rename set_string_{data,length} macros (the only ones to work with a Lisp_String_* instead of a Lisp_Object) to set_lispstringp_* to make the difference clear. try to be consistent about caps vs. lowercase in macro/inline-fun names for chars and such, which wasn't the case before. we now reserve caps either for XFOO_ macros that reference object fields (e.g. XSTRING_DATA) or for things that have non-function semantics, e.g. directly modifying an arg (BREAKUP_EMCHAR) or evaluating an arg (any arg) more than once. otherwise, use lowercase. here is a summary of most of the macros/inline funs changed by all of the above changes: BYTE_*_P -> byte_*_p XSTRING_BYTE -> string_byte set_string_data/length -> set_lispstringp_data/length XSTRING_CHAR_LENGTH -> string_char_length XSTRING_CHAR -> string_emchar INTBYTE_FIRST_BYTE_P -> intbyte_first_byte_p INTBYTE_LEADING_BYTE_P -> intbyte_leading_byte_p charptr_copy_char -> charptr_copy_emchar LEADING_BYTE_* -> leading_byte_* CHAR_* -> EMCHAR_* *_CHAR_* -> *_EMCHAR_* *_CHAR -> *_EMCHAR CHARSET_BY_ -> charset_by_* BYTE_SHIFT_JIS* -> byte_shift_jis* BYTE_BIG5* -> byte_big5* REP_BYTES_BY_FIRST_BYTE -> rep_bytes_by_first_byte char_to_unicode -> emchar_to_unicode valid_char_p -> valid_emchar_p Change intbyte_strcmp -> qxestrcmp_c (duplicated functionality). -- INTERFACE CHANGES AFFECTING LESS CODE: use DECLARE_INLINE_HEADER in various places. remove '#ifdef emacs' from XEmacs-only files. eliminate CHAR_TABLE_VALUE(), which duplicated the functionality of get_char_table(). add BUFFER_TEXT_LOOP to simplify iterations over buffer text. define typedefs for signed and unsigned types of fixed sizes (INT_32_BIT, UINT_32_BIT, etc.). create ALIGN_FOR_TYPE as a higher-level interface onto ALIGN_SIZE; fix code to use it. add charptr_emchar_len to return the text length of the character pointed to by a ptr; use it in place of charcount_to_bytecount(..., 1). add emchar_len to return the text length of a given character. add types Bytexpos and Charxpos to generalize Bytebpos/Bytecount and Charbpos/Charcount, in code (particularly, the extents code and redisplay code) that works with either kind of index. rename redisplay struct params with names such as `charbpos' to e.g. `charpos' when they are e.g. a Charxpos, not a Charbpos. eliminate xxDEFUN in place of DEFUN; no longer necessary with changes awhile back to doc.c. split up big ugly combined list of EXFUNs in lisp.h on a file-by-file basis, since other prototypes are similarly split. rewrite some "*_UNSAFE" macros as inline funs and eliminate the _UNSAFE suffix. move most string code from lisp.h to text.h; the string code and text.h code is now intertwined in such a fashion that they need to be in the same place and partially interleaved. (you can't create forward references for inline funs) automated/lisp-tests.el, automated/symbol-tests.el, automated/test-harness.el: Fix test harness to output FAIL messages to stderr when in batch mode. Fix up some problems in lisp-tests/symbol-tests that were causing spurious failures.

;;; disp-table.el --- functions for dealing with char tables.

;; Copyright (C) 1987, 1994, 1997 Free Software Foundation, Inc.
;; Copyright (C) 1995 Sun Microsystems.

;; Author: Howard Gayle
;; Maintainer: XEmacs Development Team
;; Keywords: i18n, internal

;; 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, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Synched up with: Not synched with FSF.

;;; Commentary:

;; #### Need lots of work.  make-display-table depends on a value
;; that is a define in the C code.  Maybe we should just move the
;; function into C.

;; #### display-tables-as-vectors is really evil and a big pain in
;; the ass.

;; Rewritten for XEmacs July 1995, Ben Wing.


;;; Code:

(defun describe-display-table (dt)
  "Describe the display table DT in a help buffer."
  (with-displaying-help-buffer
   (lambda ()
     (princ "\nCharacter display glyph sequences:\n")
     (save-excursion
       (let ((vector (make-vector 256 nil))
             (i 0))
         (while (< i 256)
           (aset vector i (aref dt i))
           (incf i))
	 ;; FSF calls `describe-vector' here, but it is so incredibly
	 ;; lame a function for that name that I cannot bring myself
	 ;; to porting it.  Here is what `describe-vector' does:
	 (terpri)
	 (let ((old (aref vector 0))
	       (oldpos 0)
	       (i 1)
	       str)
	   (while (<= i 256)
	     (when (or (= i 256)
		       (not (equal old (aref vector i))))
	       (if (eq oldpos (1- i))
		   (princ (format "%s\t\t%s\n"
				  (single-key-description (int-char oldpos))
				  old))
		 (setq str (format "%s - %s"
				   (single-key-description (int-char oldpos))
				   (single-key-description (int-char (1- i)))))
		 (princ str)
		 (princ (make-string (max (- 2 (/ (length str)
						  tab-width)) 1) ?\t))
		 (princ old)
		 (terpri))
	       (or (= i 256)
		   (setq old (aref vector i)
			 oldpos i)))
	     (incf i))))))))

;;;###autoload
(defun describe-current-display-table (&optional domain)
  "Describe the display table in use in the selected window and buffer."
  (interactive)
  (or domain (setq domain (selected-window)))
  (let ((disptab (specifier-instance current-display-table domain)))
    (if disptab
	(describe-display-table disptab)
      (message "No display table"))))

;;;###autoload
(defun make-display-table ()
  "Return a new, empty display table."
  (make-vector 256 nil))

;; #### we need a generic frob-specifier function.
;; #### this also needs to be redone like frob-face-property.

;; Let me say one more time how much dynamic scoping sucks.

(defun frob-display-table (fdt-function fdt-locale)
  (or fdt-locale (setq fdt-locale 'global))
  (or (specifier-spec-list current-display-table fdt-locale)
      (add-spec-to-specifier current-display-table (make-display-table)
			     fdt-locale))
  (add-spec-list-to-specifier
   current-display-table
   (list (cons fdt-locale
	       (mapcar
		(lambda (fdt-x)
                  (funcall fdt-function (cdr fdt-x))
                  fdt-x)
		(cdar (specifier-spec-list current-display-table
					   fdt-locale)))))))

(defun standard-display-8bit-1 (dt l h)
  (while (<= l h)
    (aset dt l (char-to-string l))
    (setq l (1+ l))))

;;;###autoload
(defun standard-display-8bit (l h &optional locale)
  "Display characters in the range L to H literally."
  (frob-display-table
   (lambda (x)
     (standard-display-8bit-1 x l h))
   locale))

(defun standard-display-default-1 (dt l h)
  (while (<= l h)
    (aset dt l nil)
    (setq l (1+ l))))

;;;###autoload
(defun standard-display-default (l h &optional locale)
  "Display characters in the range L to H using the default notation."
  (frob-display-table
   (lambda (x)
     (standard-display-default-1 x l h))
   locale))

;;;###autoload
(defun standard-display-ascii (c s &optional locale)
  "Display character C using printable string S."
  (frob-display-table
   (lambda (x)
     (aset x c s))
   locale))


;;; #### should frob in a 'tty locale.

;;;###autoload
(defun standard-display-g1 (c sc &optional locale)
  "Display character C as character SC in the g1 character set.
This function assumes that your terminal uses the SO/SI characters;
it is meaningless for an X frame."
  (frob-display-table
   (lambda (x)
     (aset x c (concat "\016" (char-to-string sc) "\017")))
   locale))


;;; #### should frob in a 'tty locale.

;;;###autoload
(defun standard-display-graphic (c gc &optional locale)
  "Display character C as character GC in graphics character set.
This function assumes VT100-compatible escapes; it is meaningless for an
X frame."
  (frob-display-table
   (lambda (x)
     (aset x c (concat "\e(0" (char-to-string gc) "\e(B")))
   locale))

;;; #### should frob in a 'tty locale.
;;; #### the FSF equivalent of this makes this character be displayed
;;; in the 'underline face.  There's no current way to do this with
;;; XEmacs display tables.

;;;###autoload
(defun standard-display-underline (c uc &optional locale)
  "Display character C as character UC plus underlining."
  (frob-display-table
   (lambda (x)
     (aset x c (concat "\e[4m" (char-to-string uc) "\e[m")))
   locale))

;;;###autoload
(defun standard-display-european (arg &optional locale)
  "Toggle display of European characters encoded with ISO 8859.
When enabled, characters in the range of 160 to 255 display not
as octal escapes, but as accented characters.
With prefix argument, enable European character display iff arg is positive."
  (interactive "P")
  (frob-display-table
   (lambda (x)
     (if (or (<= (prefix-numeric-value arg) 0)
             (and (null arg)
                  (equal (aref x 160) (char-to-string 160))))
         (standard-display-default-1 x 160 255)
       (standard-display-8bit-1 x 160 255)))
   locale))

(provide 'disp-table)

;;; disp-table.el ends here