[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.

;;; gutter.el --- Gutter manipulation for XEmacs.

;; Copyright (C) 1999 Free Software Foundation, Inc.
;; Copyright (C) 1999, 2000 Andy Piper.

;; Maintainer: XEmacs Development Team
;; Keywords: frames, gui, internal, dumped

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

;; Some of this is taken from the buffer-menu stuff in menubar-items.el
;; and the custom specs in toolbar.el.

(defgroup gutter nil
  "Input from the gutters."
  :group 'environment)

;; Although these customizations appear bogus, they are necessary in
;; order to be able to save options through the options menu.
(defcustom default-gutter-position
  (default-gutter-position)
  "The location of the default gutter. It can be 'top, 'bottom, 'left or
'right. This option should be customized through the options menu.
To set the gutter position explicitly use `set-default-gutter-position'"
  :group 'gutter
  :type '(choice (const :tag "top" top)
		 (const :tag "bottom" bottom)
		 (const :tag "left" left)
		 (const :tag "right" right))
  :set #'(lambda (var val)
	   (set-default-gutter-position val)
	   (setq default-gutter-position val)))

;;; Gutter helper functions

;; called by Fset_default_gutter_position()
(defvar default-gutter-position-changed-hook nil
  "Function or functions to be called when the gutter position is changed.
The value of this variable may be buffer-local.")

;; called by set-gutter-element-visible-p
(defvar gutter-element-visibility-changed-hook nil
  "Function or functions to be called when the visibility of an
element in the gutter changes.  The value of this variable may be
buffer-local. The gutter element symbol is passed as an argument to
the hook, as is the visibility flag.")

(defun set-gutter-element (gutter-specifier prop value &optional locale tag-set)
  "Set GUTTER-SPECIFIER gutter element PROP to VALUE in optional LOCALE.
This is a convenience function for setting gutter elements.
VALUE in general must be a string. If VALUE is a glyph then a string
will be created to put the glyph into."
  (let ((spec value))
    (when (glyphp value)
      (setq spec (copy-sequence "\n"))
      (set-extent-begin-glyph (make-extent 0 1 spec) value))
    (map-extents #'(lambda (extent arg)
		     (set-extent-property extent 'duplicable t)) spec)
    (modify-specifier-instances gutter-specifier #'plist-put (list prop spec)
				'force nil locale tag-set)))

(defun remove-gutter-element (gutter-specifier prop &optional locale tag-set)
  "Remove gutter element PROP from GUTTER-SPECIFIER in optional LOCALE.
This is a convenience function for removing gutter elements."
  (modify-specifier-instances gutter-specifier #'plist-remprop (list prop)
                              'force nil locale tag-set))

(defun set-gutter-element-visible-p (gutter-visible-specifier-p
				     prop &optional visible-p
				     locale tag-set)
  "Change the visibility of gutter elements.
Set the visibility of element PROP to VISIBLE-P for
GUTTER-SPECIFIER-VISIBLE-P in optional LOCALE.
This is a convenience function for hiding and showing gutter elements."
  (modify-specifier-instances
   gutter-visible-specifier-p #'(lambda (spec prop visible-p)
				  (if (consp spec)
				      (if visible-p
					  (if (memq prop spec) spec
					    (cons prop spec))
					(delq prop spec))
				    (if visible-p (list prop))))
   (list prop visible-p)
   'force nil locale tag-set)
  (run-hook-with-args 'gutter-element-visibility-changed-hook prop visible-p))

(defun gutter-element-visible-p (gutter-visible-specifier-p
				 prop &optional domain)
  "Determine whether a gutter element is visible.
Given GUTTER-VISIBLE-SPECIFIER-P and gutter element PROP, return
non-nil if it is visible in optional DOMAIN."
  (let ((spec (specifier-instance gutter-visible-specifier-p domain)))
    (or (and (listp spec) (memq 'buffers-tab spec))
 	spec)))

(defun set-gutter-dirty-p (gutter-or-location)
  "Make GUTTER-OR-LOCATION dirty to force redisplay updates."
  ;; set-glyph-image will not make the gutter dirty
  (when (or (gutter-specifier-p gutter-or-location)
	    (eq gutter-or-location 'top)
	    (eq gutter-or-location 'bottom)
	    (eq gutter-or-location 'left)
	    (eq gutter-or-location 'right))
    (or (gutter-specifier-p gutter-or-location) 
	(setq gutter-or-location
	      (eval (intern (concat 
			     (symbol-name gutter-or-location)
			     "-gutter")))))
    (set-specifier-dirty-flag gutter-or-location)))

(defun make-gutter-specifier (spec-list)
  "Return a new `gutter' specifier object with the given specification list.
SPEC-LIST can be a list of specifications (each of which is a cons of a
locale and a list of instantiators), a single instantiator, or a list
of instantiators.  See `make-specifier' for more information about
specifiers.

Gutter specifiers are used to specify the format of a gutter.
The values of the variables `default-gutter', `top-gutter',
`left-gutter', `right-gutter', and `bottom-gutter' are always
gutter specifiers.

Valid gutter instantiators are called \"gutter descriptors\" and are
either strings or property-lists of strings.  See `default-gutter' for
a description of the exact format."
  (make-specifier-and-init 'gutter spec-list))

(defun make-gutter-size-specifier (spec-list)
  "Return a new `gutter-size' specifier object with the given spec list.
SPEC-LIST can be a list of specifications (each of which is a cons of a
locale and a list of instantiators), a single instantiator, or a list
of instantiators.  See `make-specifier' for more information about
specifiers.

Gutter-size specifiers are used to specify the size of a gutter.  The
values of the variables `default-gutter-size', `top-gutter-size',
`left-gutter-size', `right-gutter-size', and `bottom-gutter-size' are
always gutter-size specifiers.

Valid gutter-size instantiators are either integers or the special
symbol 'autodetect. If a gutter-size is set to 'autodetect them the
size of the gutter will be adjusted to just accommodate the gutters
contents. 'autodetect only works for top and bottom gutters."
  (make-specifier-and-init 'gutter-size spec-list))

(defun make-gutter-visible-specifier (spec-list)
  "Return a new `gutter-visible' specifier object with the given spec list.
SPEC-LIST can be a list of specifications (each of which is a cons of a
locale and a list of instantiators), a single instantiator, or a list
of instantiators.  See `make-specifier' for more information about
specifiers.

Gutter-visible specifiers are used to specify the visibility of a
gutter.  The values of the variables `default-gutter-visible-p',
`top-gutter-visible-p', `left-gutter-visible-p',
`right-gutter-visible-p', and `bottom-gutter-visible-p' are always
gutter-visible specifiers.

Valid gutter-visible instantiators are t, nil or a list of symbols.
If a gutter-visible instantiator is set to a list of symbols, and the
corresponding gutter specification is a property-list strings, then
elements of the gutter specification will only be visible if the
corresponding symbol occurs in the gutter-visible instantiator."
  (make-specifier-and-init 'gutter-visible spec-list))

;;; gutter.el ends here.