--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/insdel.h	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,174 @@
+/* Buffer insertion/deletion and gap motion for XEmacs.
+   Copyright (C) 1985-1994 Free Software Foundation, Inc.
+
+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. */
+
+/* Mostly rewritten by Ben Wing. */
+
+#ifndef _XEMACS_INSDEL_H_
+#define _XEMACS_INSDEL_H_
+
+/************************************************************************/
+/*                        changing a buffer's text                      */
+/************************************************************************/
+
+extern int begin_multiple_change (struct buffer *buf, Bufpos start,
+				  Bufpos end);
+extern void end_multiple_change (struct buffer *buf, int count);
+
+/* flags for functions below */
+
+#define INSDEL_BEFORE_MARKERS 1
+#define INSDEL_NO_LOCKING 2
+
+Charcount buffer_insert_string_1 (struct buffer *buf, Bufpos pos,
+				  CONST Bufbyte *nonreloc, Lisp_Object reloc,
+				  Bytecount offset, Bytecount length,
+				  int flags);
+Charcount buffer_insert_raw_string_1 (struct buffer *buf, Bufpos pos,
+				      CONST Bufbyte *nonreloc,
+				      Bytecount length, int flags);
+Charcount buffer_insert_lisp_string_1 (struct buffer *buf, Bufpos pos,
+				       Lisp_Object str, int flags);
+Charcount buffer_insert_c_string_1 (struct buffer *buf, Bufpos pos,
+				    CONST char *s, int flags);
+Charcount buffer_insert_emacs_char_1 (struct buffer *buf, Bufpos pos,
+				      Emchar ch, int flags);
+Charcount buffer_insert_c_char_1 (struct buffer *buf, Bufpos pos, char c,
+				  int flags);
+Charcount buffer_insert_from_buffer_1 (struct buffer *buf, Bufpos pos,
+				       struct buffer *buf2, Bufpos pos2,
+				       Charcount length, int flags);
+
+/* Macros for insertion functions that insert at point after markers.
+   All of these can GC. */
+
+#define buffer_insert_string(buf, nonreloc, reloc, offset, length) \
+  buffer_insert_string_1 (buf, -1, nonreloc, reloc, offset, length, 0)
+#define buffer_insert_raw_string(buf, string, length) \
+  buffer_insert_raw_string_1 (buf, -1, string, length, 0)
+#define buffer_insert_c_string(buf, s) \
+  buffer_insert_c_string_1 (buf, -1, s, 0)
+#define buffer_insert_lisp_string(buf, str) \
+  buffer_insert_lisp_string_1 (buf, -1, str, 0)
+#define buffer_insert_c_char(buf, c) \
+  buffer_insert_c_char_1 (buf, -1, c, 0)
+#define buffer_insert_emacs_char(buf, ch) \
+  buffer_insert_emacs_char_1 (buf, -1, ch, 0)
+#define buffer_insert_from_buffer(buf, b, index, length) \
+  buffer_insert_from_buffer_1 (buf, -1, b, index, length, 0)
+
+extern void buffer_delete_range (struct buffer *buf, Bufpos from, Bufpos to,
+				 int flags);
+extern void buffer_replace_char (struct buffer *b, Bufpos pos, Emchar ch,
+				 int not_real_change, int force_lock_check);
+
+
+
+
+/************************************************************************/
+/*                        tracking buffer changes                       */
+/************************************************************************/
+
+/* Split into two parts.  One part goes with a buffer's text (possibly
+   shared), the other with the buffer itself. */
+
+struct buffer_text_change_data
+{
+  /* multiple change stuff */
+  int in_multiple_change;
+  Bufpos mc_begin, mc_orig_end, mc_new_end;
+  int mc_begin_signaled;
+};
+
+struct each_buffer_change_data
+{
+  Charcount begin_unchanged, end_unchanged;
+  /* redisplay needs to know if a newline was deleted so its
+     incremental-redisplay algorithm will fail */
+  int newline_was_deleted;
+  Charcount begin_extent_unchanged, end_extent_unchanged;
+};
+
+/* Number of characters at the beginning and end of the buffer that
+   have not changed since the last call to buffer_reset_changes().
+   If no changes have occurred since then, both values will be -1.
+
+   "Changed" means that the text has changed. */
+
+#define BUF_BEGIN_UNCHANGED(buf) ((buf)->changes->begin_unchanged)
+#define BUF_END_UNCHANGED(buf) ((buf)->changes->end_unchanged)
+
+/* Number of characters at the beginning and end of the buffer that
+   have not had a covering extent change since the last call to
+   buffer_reset_changes ().  If no changes have occurred since then,
+   both values will be -1.
+
+   "Changed" means that the extents covering the text have changed. */
+
+#define BUF_EXTENT_BEGIN_UNCHANGED(buf) \
+  ((buf)->changes->begin_extent_unchanged)
+#define BUF_EXTENT_END_UNCHANGED(buf) \
+  ((buf)->changes->end_extent_unchanged)
+
+#define BUF_NEWLINE_WAS_DELETED(buf) \
+  ((buf)->changes->newline_was_deleted)
+
+extern void buffer_extent_signal_changed_region (struct buffer *buf,
+						 Bufpos start,
+						 Bufpos end);
+extern void buffer_reset_changes (struct buffer *buf);
+
+
+
+
+/************************************************************************/
+/*                        other related functions                       */
+/************************************************************************/
+
+extern Memind do_marker_adjustment (Memind mpos, Memind from,
+				    Memind to, int amount);
+
+extern void fixup_internal_substring (CONST Bufbyte *nonreloc,
+				      Lisp_Object reloc,
+				      int offset, int *len);
+
+/* In font-lock.c */
+extern void font_lock_maybe_update_syntactic_caches (struct buffer *buf,
+						     Bufpos start,
+						     Bufpos orig_end,
+						     Bufpos new_end);
+extern void font_lock_buffer_was_killed (struct buffer *buf);
+
+extern void barf_if_buffer_read_only (struct buffer *buf, Bufpos from,
+				      Bufpos to);
+
+/* In marker.c */
+void init_buffer_markers (struct buffer *b);
+void uninit_buffer_markers (struct buffer *b);
+
+extern Lisp_Object make_string_from_buffer (struct buffer *buf, Bufpos pos,
+					    Charcount length);
+extern void init_buffer_text (struct buffer *b, int indirect_p);
+extern void uninit_buffer_text (struct buffer *b, int indirect_p);
+
+
+
+#endif /* _XEMACS_INSDEL_H_ */