/* 
   -copyright-
# xsnow: let it snow on your desktop
# Copyright (C) 1984,1988,1990,1993-1995,2000-2001 Rick Jansen
#              2019,2020,2021,2022,2023,2024,2025,2026 Willem Vermin
# 
# 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/>.
# 
#-endcopyright-
*/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "csvpos.h"
// given s like "9,2,0" fill k with 9,2,0, set n to 3.
// all values positive, if negative 0 is inserted
// k is allocated in csvpos, free it with free(3)
void csvpos(char *s, int **k, int *n)
{
   char *p = s;
   char *q;
   (*n) = 0;
   (*k) = (int *)malloc(sizeof(**k));
   while (p)
   {
      q = p;
      int i = strtol(p, &q, 0);
      if (p == q)
	 break;
      if (i<0)
	 i = 0;
      (*n)++;
      (*k) = (int *)realloc(*k,sizeof(**k)*(*n));
      (*k)[(*n)-1] = i;
      p = strchr(p,','); 
      if(p) p++;
   }
}
void vsc(char **s, int *k, int n)
{
   *s = strdup("");
   assert(*s);
   char p[256];
   int l = strlen(*s);
   for (int i=0; i<n; i++)
   {
      snprintf(p,250,"%d,",k[i]);
      l += strlen(p);
      *s = (char *)realloc(*s,l+1);
      assert(*s);
      strcat(*s,p);
   }
}

