mirror of
https://github.com/linux-speakup/espeakup.git
synced 2026-08-09 09:19:09 +02:00
112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
/*
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* espeakup - interface which allows speakup to use espeak
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*
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* Copyright (C) 2011 William Hubbs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* These string routines were borrowed from edbrowse, which was
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* originally written by Karl Dahlke, and is being currently maintained
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* by Christopher Brannon.
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* I would like to thank both of them for their work on this software.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char *EMPTYSTRING = "";
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void *allocMem(size_t n)
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{
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void *s;
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if (!n)
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return EMPTYSTRING;
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if (!(s = malloc(n))) {
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fprintf(stderr, "Out of memory!\n");
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exit(1);
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}
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return s;
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}
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void *reallocMem(void *p, size_t n)
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{
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void *s;
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if (!n) {
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fprintf(stderr, "Trying to reallocate memory with size of 0.\n");
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exit(1);
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}
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if (!p) {
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fprintf(stderr, "realloc called with a NULL pointer!\n");
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exit(1);
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}
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if (p == EMPTYSTRING)
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return allocMem(n);
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if (!(s = realloc(p, n))) {
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fprintf(stderr, "Failed to allocate memory.\n");
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exit(1);
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}
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return s;
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}
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char *initString(int *l)
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{
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*l = 0;
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return EMPTYSTRING;
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}
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void stringAndString(char **s, int *l, const char *t)
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{
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char *p = *s;
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int oldlen, newlen, x;
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oldlen = *l;
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newlen = oldlen + strlen(t);
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*l = newlen;
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++newlen; /* room for the 0 */
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x = oldlen ^ newlen;
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if (x > oldlen) { /* must realloc */
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newlen |= (newlen >> 1);
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newlen |= (newlen >> 2);
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newlen |= (newlen >> 4);
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newlen |= (newlen >> 8);
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newlen |= (newlen >> 16);
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p = reallocMem(p, newlen);
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*s = p;
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}
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strcpy(p + oldlen, t);
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}
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void stringAndBytes(char **s, int *l, const char *t, int cnt)
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{
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char *p = *s;
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int oldlen, newlen, x;
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oldlen = *l;
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newlen = oldlen + cnt;
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*l = newlen;
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++newlen;
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x = oldlen ^ newlen;
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if (x > oldlen) { /* must realloc */
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newlen |= (newlen >> 1);
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newlen |= (newlen >> 2);
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newlen |= (newlen >> 4);
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newlen |= (newlen >> 8);
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newlen |= (newlen >> 16);
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p = reallocMem(p, newlen);
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*s = p;
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}
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memcpy(p + oldlen, t, cnt);
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p[oldlen + cnt] = 0;
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}
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