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/*
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#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;
}

#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