Chat-O-Matic/libs/libyahoo2/yahoo_util.c

163 lines
3.3 KiB
C

/*
* libyahoo2: yahoo_util.c
*
* Copyright (C) 2002-2004, Philip S Tellis <philip.tellis AT gmx.net>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if STDC_HEADERS
# include <string.h>
#else
# if !HAVE_STRCHR
# define strchr index
# define strrchr rindex
# endif
char *strchr(), *strrchr();
# if !HAVE_MEMCPY
# define memcpy(d, s, n) bcopy ((s), (d), (n))
# define memmove(d, s, n) bcopy ((s), (d), (n))
# endif
#endif
#include "yahoo_util.h"
char *y_string_append(char *string, char *append)
{
int size = strlen(string) + strlen(append) + 1;
char *new_string = y_renew(char, string, size);
if (new_string == NULL) {
new_string = y_new(char, size);
strcpy(new_string, string);
FREE(string);
}
strcat(new_string, append);
return new_string;
}
char *y_str_to_utf8(const char *in)
{
unsigned int n, i = 0;
char *result = NULL;
if (in == NULL || *in == '\0')
return strdup("");
result = y_new(char, strlen(in) * 2 + 1);
/* convert a string to UTF-8 Format */
for (n = 0; n < strlen(in); n++) {
unsigned char c = (unsigned char)in[n];
if (c < 128) {
result[i++] = (char)c;
} else {
result[i++] = (char)((c >> 6) | 192);
result[i++] = (char)((c & 63) | 128);
}
}
result[i] = '\0';
return result;
}
char *y_utf8_to_str(const char *in)
{
int i = 0;
unsigned int n;
char *result = NULL;
if (in == NULL || *in == '\0')
return strdup("");
result = y_new(char, strlen(in) + 1);
/* convert a string from UTF-8 Format */
for (n = 0; n < strlen(in); n++) {
unsigned char c = in[n];
if (c < 128) {
result[i++] = (char)c;
} else {
result[i++] = (c << 6) | (in[++n] & 63);
}
}
result[i] = '\0';
return result;
}
#if !HAVE_GLIB
void y_strfreev(char **vector)
{
char **v;
for (v = vector; *v; v++) {
FREE(*v);
}
FREE(vector);
}
char **y_strsplit(char *str, char *sep, int nelem)
{
char **vector;
char *s, *p;
int i = 0;
int l = strlen(sep);
if (nelem <= 0) {
char *s;
nelem = 0;
if (*str) {
for (s = strstr(str, sep); s;
s = strstr(s + l, sep), nelem++) ;
if (strcmp(str + strlen(str) - l, sep))
nelem++;
}
}
vector = y_new(char *, nelem + 1);
for (p = str, s = strstr(p, sep); i < nelem && s;
p = s + l, s = strstr(p, sep), i++) {
int len = s - p;
vector[i] = y_new(char, len + 1);
strncpy(vector[i], p, len);
vector[i][len] = '\0';
}
if (i < nelem && *str) /* str didn't end with sep, and str isn't empty */
vector[i++] = strdup(p);
vector[i] = NULL;
return vector;
}
void *y_memdup(const void *addr, int n)
{
void *new_chunk = malloc(n);
if (new_chunk)
memcpy(new_chunk, addr, n);
return new_chunk;
}
#endif