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- /* Buffer insertion/deletion and gap motion for XEmacs.
- Copyright (C) 1985-1993 Free Software Foundation, Inc.
- Copyright (C) 1994 Amdahl Corporation.
-
- 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Synched up with: Not in FSF. */
-
- #ifndef _XEMACS_INSDEL_H_
- #define _XEMACS_INSDEL_H_
-
- extern Memind do_marker_adjustment (Memind mpos, Memind from,
- Memind to, int amount);
-
- extern int begin_multiple_change (struct buffer *buf, Bufpos start,
- Bufpos end);
- extern void end_multiple_change (struct buffer *buf, int count);
-
- 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);
-
- /* flags for functions below */
-
- #define INSDEL_BEFORE_MARKERS 1
- #define INSDEL_NO_LOCKING 2
-
- extern void buffer_insert_string_1 (struct buffer *buf, Bufpos pos,
- CONST Bufbyte *nonreloc, Lisp_Object reloc,
- Bytecount offset, Bytecount length,
- int flags);
- extern void buffer_insert_raw_string_1 (struct buffer *buf, Bufpos pos,
- CONST Bufbyte *nonreloc,
- Bytecount length, int flags);
- extern void buffer_insert_lisp_string_1 (struct buffer *buf, Bufpos pos,
- Lisp_Object str, int flags);
- extern void buffer_insert_c_string_1 (struct buffer *buf, Bufpos pos,
- CONST char *s, int flags);
- extern void buffer_insert_emacs_char_1 (struct buffer *buf, Bufpos pos,
- Emchar ch, int flags);
- extern void buffer_insert_c_char_1 (struct buffer *buf, Bufpos pos, char c,
- int flags);
- extern void 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);
- extern void barf_if_buffer_read_only (struct buffer *buf, Bufpos from,
- Bufpos to);
-
- extern Lisp_Object make_string_from_buffer (struct buffer *buf, Bufpos pos,
- Charcount length);
- extern void init_buffer_text (struct buffer *b);
- extern void uninit_buffer_text (struct buffer *b);
-
- #ifdef MULE
- MAC_DECLARE_EXTERN (Emchar, mactemp_lstream_emchar)
- MAC_DECLARE_EXTERN (int, mactemp_lstream_emcint)
- extern Emchar Lstream_get_emchar_1 (Lstream *stream, int first_char);
- extern int Lstream_fput_emchar (Lstream *stream, Emchar ch);
- extern void Lstream_funget_emchar (Lstream *stream, Emchar ch);
- #endif
-
- #ifdef MULE
- # define Lstream_get_emchar(stream) \
- MAC_BEGIN \
- MAC_DECLARE (int, mactemp_lstream_emcint, Lstream_getc (stream)) \
- mactemp_lstream_emcint < 0x80 ? (Emchar) mactemp_lstream_emcint : \
- Lstream_get_emchar_1 (stream, mactemp_lstream_emcint) \
- MAC_END
- # define Lstream_put_emchar(stream, ch) \
- MAC_BEGIN \
- MAC_DECLARE (Emchar, mactemp_lstream_emchar, ch) \
- CHAR_ASCII_P (mactemp_lstream_emchar) ? \
- Lstream_putc (stream, mactemp_lstream_emchar) : \
- Lstream_fput_emchar (stream, mactemp_lstream_emchar) \
- MAC_END
- # define Lstream_unget_emchar(stream, ch) \
- MAC_BEGIN \
- MAC_DECLARE (Emchar, mactemp_lstream_emchar, ch) \
- CHAR_ASCII_P (mactemp_lstream_emchar) ? \
- Lstream_ungetc (stream, mactemp_lstream_emchar) : \
- Lstream_funget_emchar (stream, mactemp_lstream_emchar) \
- MAC_END
- #else
- # define Lstream_get_emchar(stream) Lstream_getc (stream)
- # define Lstream_put_emchar(stream, ch) Lstream_putc (stream, ch)
- # define Lstream_unget_emchar(stream, ch) Lstream_ungetc (stream, ch)
- #endif
-
- #ifdef MULE
-
- struct buffer_mule_bufpos_data
- {
- Bytind bibeg, biend;
- Bufpos beg, end;
- int charsize;
- };
-
- #endif
-
- struct buffer_change_data
- {
- /* multiple change stuff */
- int in_multiple_change;
- Bufpos mc_begin, mc_orig_end, mc_new_end;
- int mc_begin_signaled;
- 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);
-
- #endif /* _XEMACS_INSDEL_H_ */
-