428
+ − 1 /* Buffer insertion/deletion and gap motion for XEmacs.
+ − 2 Copyright (C) 1985-1994 Free Software Foundation, Inc.
+ − 3
+ − 4 This file is part of XEmacs.
+ − 5
+ − 6 XEmacs is free software; you can redistribute it and/or modify it
+ − 7 under the terms of the GNU General Public License as published by the
+ − 8 Free Software Foundation; either version 2, or (at your option) any
+ − 9 later version.
+ − 10
+ − 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ − 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ − 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ − 14 for more details.
+ − 15
+ − 16 You should have received a copy of the GNU General Public License
+ − 17 along with XEmacs; see the file COPYING. If not, write to
+ − 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ − 19 Boston, MA 02111-1307, USA. */
+ − 20
+ − 21 /* Synched up with: Not in FSF. */
+ − 22
+ − 23 /* Mostly rewritten by Ben Wing. */
+ − 24
440
+ − 25 #ifndef INCLUDED_insdel_h_
+ − 26 #define INCLUDED_insdel_h_
428
+ − 27
+ − 28 /************************************************************************/
+ − 29 /* changing a buffer's text */
+ − 30 /************************************************************************/
+ − 31
665
+ − 32 int begin_multiple_change (struct buffer *buf, Charbpos start, Charbpos end);
428
+ − 33 void end_multiple_change (struct buffer *buf, int count);
+ − 34
+ − 35 /* flags for functions below */
+ − 36
+ − 37 #define INSDEL_BEFORE_MARKERS 1
+ − 38 #define INSDEL_NO_LOCKING 2
+ − 39
665
+ − 40 Charcount buffer_insert_string_1 (struct buffer *buf, Charbpos pos,
+ − 41 const Intbyte *nonreloc, Lisp_Object reloc,
428
+ − 42 Bytecount offset, Bytecount length,
+ − 43 int flags);
665
+ − 44 Charcount buffer_insert_raw_string_1 (struct buffer *buf, Charbpos pos,
+ − 45 const Intbyte *nonreloc,
428
+ − 46 Bytecount length, int flags);
665
+ − 47 Charcount buffer_insert_lisp_string_1 (struct buffer *buf, Charbpos pos,
428
+ − 48 Lisp_Object str, int flags);
665
+ − 49 Charcount buffer_insert_c_string_1 (struct buffer *buf, Charbpos pos,
442
+ − 50 const char *s, int flags);
665
+ − 51 Charcount buffer_insert_emacs_char_1 (struct buffer *buf, Charbpos pos,
428
+ − 52 Emchar ch, int flags);
665
+ − 53 Charcount buffer_insert_c_char_1 (struct buffer *buf, Charbpos pos, char c,
428
+ − 54 int flags);
665
+ − 55 Charcount buffer_insert_from_buffer_1 (struct buffer *buf, Charbpos pos,
+ − 56 struct buffer *buf2, Charbpos pos2,
428
+ − 57 Charcount length, int flags);
+ − 58
+ − 59 /* Macros for insertion functions that insert at point after markers.
+ − 60 All of these can GC. */
+ − 61
+ − 62 #define buffer_insert_string(buf, nonreloc, reloc, offset, length) \
+ − 63 buffer_insert_string_1 (buf, -1, nonreloc, reloc, offset, length, 0)
+ − 64 #define buffer_insert_raw_string(buf, string, length) \
+ − 65 buffer_insert_raw_string_1 (buf, -1, string, length, 0)
+ − 66 #define buffer_insert_c_string(buf, s) \
+ − 67 buffer_insert_c_string_1 (buf, -1, s, 0)
+ − 68 #define buffer_insert_lisp_string(buf, str) \
+ − 69 buffer_insert_lisp_string_1 (buf, -1, str, 0)
+ − 70 #define buffer_insert_c_char(buf, c) \
+ − 71 buffer_insert_c_char_1 (buf, -1, c, 0)
+ − 72 #define buffer_insert_emacs_char(buf, ch) \
+ − 73 buffer_insert_emacs_char_1 (buf, -1, ch, 0)
+ − 74 #define buffer_insert_from_buffer(buf, b, index, length) \
+ − 75 buffer_insert_from_buffer_1 (buf, -1, b, index, length, 0)
+ − 76
665
+ − 77 void buffer_delete_range (struct buffer *buf, Charbpos from, Charbpos to,
428
+ − 78 int flags);
665
+ − 79 void buffer_replace_char (struct buffer *b, Charbpos pos, Emchar ch,
428
+ − 80 int not_real_change, int force_lock_check);
+ − 81
+ − 82
+ − 83 /************************************************************************/
+ − 84 /* tracking buffer changes */
+ − 85 /************************************************************************/
+ − 86
+ − 87 /* Split into two parts. One part goes with a buffer's text (possibly
+ − 88 shared), the other with the buffer itself. */
+ − 89
+ − 90 struct buffer_text_change_data
+ − 91 {
+ − 92 /* multiple change stuff */
+ − 93 int in_multiple_change;
665
+ − 94 Charbpos mc_begin, mc_orig_end, mc_new_end;
428
+ − 95 int mc_begin_signaled;
+ − 96 };
+ − 97
+ − 98 struct each_buffer_change_data
+ − 99 {
+ − 100 Charcount begin_unchanged, end_unchanged;
+ − 101 /* redisplay needs to know if a newline was deleted so its
+ − 102 incremental-redisplay algorithm will fail */
+ − 103 int newline_was_deleted;
+ − 104 Charcount begin_extent_unchanged, end_extent_unchanged;
+ − 105 };
+ − 106
+ − 107 /* Number of characters at the beginning and end of the buffer that
+ − 108 have not changed since the last call to buffer_reset_changes().
+ − 109 If no changes have occurred since then, both values will be -1.
+ − 110
+ − 111 "Changed" means that the text has changed. */
+ − 112
+ − 113 #define BUF_BEGIN_UNCHANGED(buf) ((buf)->changes->begin_unchanged)
+ − 114 #define BUF_END_UNCHANGED(buf) ((buf)->changes->end_unchanged)
+ − 115
+ − 116 /* Number of characters at the beginning and end of the buffer that
+ − 117 have not had a covering extent change since the last call to
+ − 118 buffer_reset_changes (). If no changes have occurred since then,
+ − 119 both values will be -1.
+ − 120
+ − 121 "Changed" means that the extents covering the text have changed. */
+ − 122
+ − 123 #define BUF_EXTENT_BEGIN_UNCHANGED(buf) \
+ − 124 ((buf)->changes->begin_extent_unchanged)
+ − 125 #define BUF_EXTENT_END_UNCHANGED(buf) \
+ − 126 ((buf)->changes->end_extent_unchanged)
+ − 127
+ − 128 #define BUF_NEWLINE_WAS_DELETED(buf) \
+ − 129 ((buf)->changes->newline_was_deleted)
+ − 130
+ − 131 void buffer_extent_signal_changed_region (struct buffer *buf,
665
+ − 132 Charbpos start,
+ − 133 Charbpos end);
428
+ − 134 void buffer_reset_changes (struct buffer *buf);
+ − 135
+ − 136
+ − 137
+ − 138 /************************************************************************/
+ − 139 /* other related functions */
+ − 140 /************************************************************************/
+ − 141
665
+ − 142 Membpos do_marker_adjustment (Membpos mpos, Membpos from,
+ − 143 Membpos to, Bytecount amount);
428
+ − 144
665
+ − 145 void fixup_internal_substring (const Intbyte *nonreloc,
428
+ − 146 Lisp_Object reloc,
+ − 147 Bytecount offset, Bytecount *len);
+ − 148
+ − 149 /* In font-lock.c */
+ − 150 void font_lock_maybe_update_syntactic_caches (struct buffer *buf,
665
+ − 151 Charbpos start,
+ − 152 Charbpos orig_end,
+ − 153 Charbpos new_end);
428
+ − 154 void font_lock_buffer_was_killed (struct buffer *buf);
+ − 155
665
+ − 156 void barf_if_buffer_read_only (struct buffer *buf, Charbpos from,
+ − 157 Charbpos to);
428
+ − 158
+ − 159 void init_buffer_text (struct buffer *b);
+ − 160 void uninit_buffer_text (struct buffer *b);
+ − 161
440
+ − 162 #endif /* INCLUDED_insdel_h_ */
