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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/>.
*/
#include <assert.h>
#include <stdlib.h>
#include "text-buffer.h"
void
text_buffer_init (text_buffer *tb)
{
tb->used = 0;
tb->size = 0;
tb->contents = NULL;
}
void
text_buffer_resize (text_buffer *tb, size_t size)
{
tb->size = size;
tb->contents = realloc (tb->contents, sizeof (*tb->contents) * size);
}
void
text_buffer_append (text_buffer *tb, char c)
{
size_t base_size = 1024;
if (tb->size == 0)
{
tb->contents = malloc (sizeof (*tb->contents) * base_size);
tb->size = base_size;
}
else if (tb->size == tb->used)
text_buffer_resize (tb, tb->size * 2);
tb->contents[tb->used++] = c;
}
char
text_buffer_index (text_buffer *tb, size_t pos)
{
assert (pos < tb->used);
return tb->contents[pos];
}
void
text_buffer_empty (text_buffer *tb)
{
free (tb->contents);
text_buffer_init (tb);
}
void
text_buffer_fill (text_buffer *tb, char *fill, size_t size)
{
size_t i;
tb->used = size;
tb->size = size;
free (tb->contents);
tb->contents = malloc (sizeof (*tb->contents) * size);
for (i=0; i<size; i++)
{
tb->contents[i] = fill[i];
}
}
void
text_buffer_free (text_buffer *tb)
{
free (tb->contents);
text_buffer_init (tb);
}
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