/***************************************************************************
*
* Copyright 2001,2013 by Sean Conner.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Comments, questions and criticisms can be sent to: sean@conman.org
*
*************************************************************************/

#include <ctype.h>
#include <stdlib.h>
#include <assert.h>
#include "../util.h"
#include "../cgi.h"

char *UrlEncodeChar(char *dest,char c)
{
  assert(dest != NULL);
  
  if (ispunct(c) || iscntrl(c))
  {
    if ((c != '-') && (c != '@') && (c != '*') && (c != '_'))
    {
      div_t sdiv = div(c,16);
      *dest++    = '%';
      *dest++    = hextoc(sdiv.quot);
      *dest++    = hextoc(sdiv.rem);
      return(dest);
    }
  }
  else if (c == ' ')
    c = '+';
  *dest++ = c;
  return(dest);
}
.