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/*
* espeakup - interface which allows speakup to use espeak
*
* Copyright (C) 2011 William Hubbs
*
* 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/>.
*/
/*
* These string routines were borrowed from edbrowse, which was
* originally written by Karl Dahlke, and is being currently maintained
* by Christopher Brannon.
* I would like to thank both of them for their work on this software.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char *EMPTYSTRING = "";
void *allocMem(size_t n)
{
void *s;
if (!n)
return EMPTYSTRING;
if (!(s = malloc(n))) {
fprintf(stderr, "Out of memory!\n");
exit(1);
}
return s;
}
void *reallocMem(void *p, size_t n)
{
void *s;
if (!n) {
fprintf(stderr, "Trying to reallocate memory with size of 0.\n");
exit(1);
}
if (!p) {
fprintf(stderr, "realloc called with a NULL pointer!\n");
exit(1);
}
if (p == EMPTYSTRING)
return allocMem(n);
if (!(s = realloc(p, n))) {
fprintf(stderr, "Failed to allocate memory.\n");
exit(1);
}
return s;
}
char *initString(int *l)
{
*l = 0;
return EMPTYSTRING;
}
void stringAndString(char **s, int *l, const char *t)
{
char *p = *s;
int oldlen, newlen, x;
oldlen = *l;
newlen = oldlen + strlen(t);
*l = newlen;
++newlen; /* room for the 0 */
x = oldlen ^ newlen;
if (x > oldlen) { /* must realloc */
newlen |= (newlen >> 1);
newlen |= (newlen >> 2);
newlen |= (newlen >> 4);
newlen |= (newlen >> 8);
newlen |= (newlen >> 16);
p = reallocMem(p, newlen);
*s = p;
}
strcpy(p + oldlen, t);
}
void stringAndBytes(char **s, int *l, const char *t, int cnt)
{
char *p = *s;
int oldlen, newlen, x;
oldlen = *l;
newlen = oldlen + cnt;
*l = newlen;
++newlen;
x = oldlen ^ newlen;
if (x > oldlen) { /* must realloc */
newlen |= (newlen >> 1);
newlen |= (newlen >> 2);
newlen |= (newlen >> 4);
newlen |= (newlen >> 8);
newlen |= (newlen >> 16);
p = reallocMem(p, newlen);
*s = p;
}
memcpy(p + oldlen, t, cnt);
p[oldlen + cnt] = 0;
}
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