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/* Functions for handling string buffers.
* Copyright (C) 2000, 2001 Shawn Betts
*
* This file is part of ratpoison.
*
* ratpoison 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.
*
* ratpoison 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 software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*/
#include "ratpoison.h"
#include "sbuf.h"
/* ------------------------------------ move to separate file */
#include <stdlib.h>
#include <stdio.h>
void
fatal (const char *msg)
{
fprintf (stderr, "%s", msg);
abort ();
}
void *
xmalloc (size_t size)
{
register void *value = malloc (size);
if (value == 0)
fatal ("virtual memory exhausted");
return value;
}
void *
xrealloc (void *ptr, size_t size)
{
register void *value = realloc (ptr, size);
if (value == 0)
fatal ("Virtual memory exhausted");
PRINT_DEBUG("realloc: %d\n", size);
return value;
}
/*------------------------------------------------------------*/
struct sbuf *
sbuf_new (size_t initsz)
{
struct sbuf *b = (struct sbuf*) xmalloc (sizeof (struct sbuf));
if (initsz < 1)
initsz = 1;
b->data = (char*) xmalloc (initsz);
b->maxsz = initsz;
b->data[0] = '\0';
b->len = 0;
return b;
}
void
sbuf_free (struct sbuf *b)
{
if (b != NULL)
{
if (b->data != NULL)
free (b->data);
free (b);
}
}
char *
sbuf_concat (struct sbuf *b, const char *str)
{
size_t minsz = b->len + strlen (str) + 1;
if (b->maxsz < minsz)
{
b->data = (char*) xrealloc (b->data, minsz);
b->maxsz = minsz;
}
memcpy (b->data + b->len, str, minsz - b->len - 1);
b->len = minsz - 1;
*(b->data + b->len) = 0;
return b->data;
}
char *
sbuf_copy (struct sbuf *b, const char *str)
{
b->len = 0;
return sbuf_concat (b, str);
}
char *
sbuf_clear (struct sbuf *b)
{
b->len = 0;
b->data[0] = '\0';
return b->data;
}
char *
sbuf_get (struct sbuf *b)
{
return b->data;
}
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