#include "util.h"

void
fdebug(const char *fmt, ...)
{
#ifdef _FOOD_DEBUG
  va_list ap;

  va_start(ap, fmt);
  vfprintf(stderr, fmt, ap);
  va_end(ap);
#else
  return;
#endif
}

void
die(const char *fmt, ...)
{
  va_list ap;

  va_start(ap, fmt);
  vfprintf(stderr, fmt, ap);
  va_end(ap);

  if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
    fputc(' ', stderr);
    perror(NULL);
  } else {
    fputc('\n', stderr);
  }

  exit(1);
}

void
trim(char * str)
{
  int i;
  int begin = 0;
  int end = strlen(str) - 1;

  while (isspace((unsigned char) str[begin]))
      begin++;

  while (isspace((unsigned char) str[end]) && (end >= begin))
      end--;

  /* Shift all characters back to the start of the string array. */
  for (i = begin; i <= end; i++)
      str[i - begin] = str[i];

  str[i - begin] = '\0';
}