Mercurial > hg > xemacs-beta
annotate lisp/extents.el @ 613:023b83f4e54b
[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.
author | ben |
---|---|
date | Sun, 10 Jun 2001 10:42:39 +0000 |
parents | abe6d1db359e |
children | 0d43872986b6 |
rev | line source |
---|---|
428 | 1 ;;; extents.el --- miscellaneous extent functions not written in C |
2 | |
3 ;; Copyright (C) 1993-4, 1997 Free Software Foundation, Inc. | |
442 | 4 ;; Copyright (C) 2000 Ben Wing. |
428 | 5 |
6 ;; Keywords: internal, dumped | |
7 | |
8 ;; This file is part of XEmacs. | |
9 | |
10 ;; XEmacs is free software; you can redistribute it and/or modify it | |
11 ;; under the terms of the GNU General Public License as published by | |
12 ;; the Free Software Foundation; either version 2, or (at your option) | |
13 ;; any later version. | |
14 | |
15 ;; XEmacs is distributed in the hope that it will be useful, but | |
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 ;; General Public License for more details. | |
19 | |
20 ;; You should have received a copy of the GNU General Public License | |
21 ;; along with XEmacs; see the file COPYING. If not, write to the | |
22 ;; Free Software Foundation, 59 Temple Place - Suite 330, | |
23 ;; Boston, MA 02111-1307, USA. | |
24 | |
25 ;;; Synched up with: Not in FSF. | |
26 | |
27 ;;; Commentary: | |
28 | |
442 | 29 ;;; Authorship: |
30 | |
31 ;; Created 1995 Ben Wing. | |
32 ;; mapcar-extents (and extent-list?) from stig@hackvan.com, c. 1996. | |
428 | 33 |
34 ;;; Code: | |
35 | |
36 ;; an alternative to map-extents. | |
37 (defun mapcar-extents (function &optional predicate buffer-or-string from to | |
38 flags property value) | |
39 "Apply FUNCTION to all extents which overlap a region in BUFFER-OR-STRING. | |
40 The region is delimited by FROM and TO. FUNCTION is called with | |
41 one argument, the extent. A list of the values returned by FUNCTION | |
42 is returned. An optional PREDICATE may be used to further limit the | |
43 extents over which FUNCTION is mapped. The optional arguments FLAGS, | |
44 PROPERTY, and VALUE may also be used to control the extents passed to | |
45 PREDICATE or FUNCTION. See also `map-extents'." | |
46 (let (*result*) | |
47 (map-extents (if predicate | |
48 #'(lambda (ex junk) | |
49 (and (funcall predicate ex) | |
50 (setq *result* (cons (funcall function ex) | |
51 *result*))) | |
52 nil) | |
53 #'(lambda (ex junk) | |
54 (setq *result* (cons (funcall function ex) | |
55 *result*)) | |
56 nil)) | |
57 buffer-or-string from to nil flags property value) | |
58 (nreverse *result*))) | |
59 | |
442 | 60 (defun extent-list (&optional buffer-or-string from to flags property value) |
428 | 61 "Return a list of the extents in BUFFER-OR-STRING. |
62 BUFFER-OR-STRING defaults to the current buffer if omitted. | |
63 FROM and TO can be used to limit the range over which extents are | |
64 returned; if omitted, all extents in the buffer or string are returned. | |
65 | |
66 More specifically, if a range is specified using FROM and TO, only | |
67 extents that overlap the range (i.e. begin or end inside of the range) | |
68 are included in the list. FROM and TO default to the beginning and | |
69 end of BUFFER-OR-STRING, respectively. | |
70 | |
71 FLAGS controls how end cases are treated. For a discussion of this, | |
442 | 72 and exactly what ``overlap'' means, see `map-extents'. PROPERTY and VALUE |
73 are also as in `map-extents'. | |
428 | 74 |
75 If you want to map a function over the extents in a buffer or string, | |
442 | 76 consider using `map-extents' or `mapcar-extents' instead. |
77 | |
78 See also `extents-at'." | |
79 (mapcar-extents 'identity nil buffer-or-string from to flags property value)) | |
80 | |
81 (defun extent-at-event (event &optional property before at-flag) | |
82 "Return the smallest extent under EVENT, if any. | |
83 PROPERTY, BEFORE, and AT-FLAG are as in `extent-at'." | |
84 (let* ((win (event-window event)) | |
85 (p (event-point event))) | |
86 (and win p (extent-at p (window-buffer win) property before at-flag)))) | |
87 | |
88 (defun extents-at-event (event &optional property before at-flag) | |
89 "Return a list of all extents under EVENT. | |
90 PROPERTY, BEFORE, and AT-FLAG are as in `extent-at'." | |
91 (let* ((win (event-window event)) | |
92 (p (event-point event))) | |
93 (and win p (extents-at p (window-buffer win) property before at-flag)))) | |
428 | 94 |
95 (defun extent-string (extent) | |
96 "Return the string delimited by the bounds of EXTENT." | |
97 (let ((object (extent-object extent))) | |
98 (if (bufferp object) | |
99 (buffer-substring (extent-start-position extent) | |
100 (extent-end-position extent) | |
101 object) | |
102 (substring object | |
103 (extent-start-position extent) | |
104 (extent-end-position extent))))) | |
105 | |
106 (defun extent-descendants (extent) | |
107 "Return a list of all descendants of EXTENT, including EXTENT. | |
108 This recursively applies `extent-children' to any children of | |
109 EXTENT, until no more children can be found." | |
110 (let ((children (extent-children extent))) | |
111 (if children | |
112 (apply 'nconc (mapcar 'extent-descendants children)) | |
113 (list extent)))) | |
114 | |
115 (defun set-extent-keymap (extent keymap) | |
116 "Set EXTENT's `keymap' property to KEYMAP." | |
117 (set-extent-property extent 'keymap keymap)) | |
118 | |
119 (defun extent-keymap (extent) | |
120 "Return EXTENT's `keymap' property." | |
121 (extent-property extent 'keymap)) | |
122 | |
123 ;;; extents.el ends here |