/*  
   XMMS-SID - SIDPlay input plugin for X MultiMedia System (XMMS)

   Miscellaneous support functions
   
   Written by Matti "ccr" Hamalainen <ccr@tnsp.org>

   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.
*/

#include "xmms-sid.h"
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

/*
 * Utility routines
 */
int xs_strcalloc(gchar **result, const gchar *str)
{
	/* Check the string pointers */
	if ((result == NULL) || (str == NULL))
		return -1;

	/* Allocate memory for destination */
	*result = (gchar *) g_realloc(*result, strlen(str) + 1);

	if (*result == NULL) return -2;

	/* Copy to the destination */
	strcpy(*result, str);
	
	return 0;
}


int xs_strcat(gchar **ppcResult, const gchar *pcStr)
{
	int ilen;

	/* Check the pcString pointers */
	if ((ppcResult == NULL) || (pcStr == NULL))
		return -1;

	/* Get length of the pcString to be catted */
	ilen = strlen(pcStr);

	/* Re-allocate memory for destination */
	*ppcResult = (gchar *) g_realloc(*ppcResult, strlen(*ppcResult) + ilen + 1);

	if (*ppcResult == NULL) return -2;

	/* Cat to the destination */
	strcat(*ppcResult, pcStr);

	return 0;
}


int xs_strcpy(gchar **ppcResult, gint *j, const gchar *pcStr)
{
	int ilen;

	/* Check the pcString pointers */
	if ((ppcResult == NULL) || (pcStr == NULL) || (j == NULL))
		return -1;

	/* Get length of the pcString to be catted */
	(*j) += ilen = strlen(pcStr);

	/* Re-allocate memory for destination */
	*ppcResult = (gchar *) g_realloc(*ppcResult, strlen(*ppcResult) + ilen + 1);

	if (*ppcResult == NULL) return -2;

	/* Cat to the destination */
	strcat(*ppcResult, pcStr);

	return 0;
}


inline void xs_findnext(gchar *pcStr, gint *piPos)
{
 /* Terminating NULL-character is not whitespace! */
 while (isspace(pcStr[*piPos])) (*piPos)++;
}


inline void xs_findnum(gchar *pcStr, gint *piPos)
{
 /* Terminating NULL-character is not digit! */
 while (isdigit(pcStr[*piPos])) (*piPos)++;
}