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/* parc
* Copyright (C) 2025 Ekaitz Zarraga <ekaitz@elenq.tech>
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
typedef struct
{
size_t used;
size_t size;
char *contents;
}
text_buffer;
typedef struct _piece
{
text_buffer *buffer;
size_t start;
size_t length;
struct _piece *next;
struct _piece *prev;
}
piece;
typedef struct _piece_buffer
{
size_t used;
size_t size;
struct _piece_buffer *next;
piece *start;
}
piece_buffer;
typedef struct _piece_table
{
text_buffer orig;
text_buffer add;
piece_buffer *pieces;
piece *sentinel;
piece *empty;
size_t length;
piece *cached;
size_t cached_offset;
}
piece_table;
/* text_buffer */
void text_buffer_init (text_buffer *tb);
void text_buffer_resize (text_buffer *tb, size_t size);
void text_buffer_append (text_buffer *tb, char c);
char text_buffer_index (text_buffer *tb, size_t pos);
void text_buffer_empty (text_buffer *tb);
void text_buffer_fill (text_buffer *tb, char *fill, size_t size);
void text_buffer_free (text_buffer *tb);
/* piece_buffer */
piece_buffer *piece_buffer_create (size_t size);
void piece_buffer_destroy (piece_buffer *pb);
void piece_buffer_empty (piece_buffer *pb);
piece *piece_buffer_bump (piece_buffer *pb);
/* piece_table */
void piece_table_piece_mark_empty (piece_table *pt, piece *p);
piece *piece_table_piece_new (piece_table *pt);
piece *piece_table_piece_split (piece_table *pt, piece *p, size_t pos);
void piece_table_piece_find (piece_table *pt, size_t pos);
void piece_table_insert (piece_table *pt, size_t pos, char *in, size_t len);
void piece_table_delete (piece_table *pt, size_t pos, size_t len);
piece_table *piece_table_create_from (char *orig, size_t size);
piece_table *piece_table_create (char *orig, size_t size);
void piece_table_destroy (piece_table *pt);
char piece_table_index (piece_table *pt, size_t pos);
void piece_table_to_string (piece_table *pt, char *buf, size_t size);
size_t piece_table_length (piece_table *pt);
void piece_table_optimize (piece_table *pt);
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