--- /dev/null
+/* 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 INCLUDED_insdel_h_
+#define INCLUDED_insdel_h_
+
+/************************************************************************/
+/* changing a buffer's text */
+/************************************************************************/
+
+int begin_multiple_change (struct buffer *buf, Bufpos start, Bufpos end);
+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)
+
+void buffer_delete_range (struct buffer *buf, Bufpos from, Bufpos to,
+ int flags);
+void buffer_replace_char (struct buffer *b, Bufpos pos, Emchar ch,
+ int not_real_change, int force_lock_check);
+
+\f
+/************************************************************************/
+/* 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)
+
+void buffer_extent_signal_changed_region (struct buffer *buf,
+ Bufpos start,
+ Bufpos end);
+void buffer_reset_changes (struct buffer *buf);
+
+
+\f
+/************************************************************************/
+/* other related functions */
+/************************************************************************/
+
+Memind do_marker_adjustment (Memind mpos, Memind from,
+ Memind to, Bytecount amount);
+
+void fixup_internal_substring (const Bufbyte *nonreloc,
+ Lisp_Object reloc,
+ Bytecount offset, Bytecount *len);
+
+/* In font-lock.c */
+void font_lock_maybe_update_syntactic_caches (struct buffer *buf,
+ Bufpos start,
+ Bufpos orig_end,
+ Bufpos new_end);
+void font_lock_buffer_was_killed (struct buffer *buf);
+
+void barf_if_buffer_read_only (struct buffer *buf, Bufpos from,
+ Bufpos to);
+
+void init_buffer_text (struct buffer *b);
+void uninit_buffer_text (struct buffer *b);
+
+#endif /* INCLUDED_insdel_h_ */
projects / chise / xemacs-chise.git- / blobdiff