//#include "local_scan.h"
//#include "macros.h"
#include "exim.h"


/*************************************************
*         Case-independent strcmp() function     *
*************************************************/

/*
Arguments:
  s         first string
  t         second string

Returns:    < 0, = 0, or > 0, according to the comparison
*/

int
strcmpic(const uschar *s, const uschar *t)
{
while (*s != 0)
  {
  int c = tolower(*s++) - tolower(*t++);
  if (c != 0) return c;
  }
return *t;
}


/*************************************************
*         Case-independent strstr() function     *
*************************************************/

/* The third argument specifies whether whitespace is required
to follow the matched string.

Arguments:
  s              string to search
  t              substring to search for
  space_follows  if TRUE, match only if whitespace follows

Returns:         pointer to substring in string, or NULL if not found
*/

uschar *
strstric(uschar *s, uschar *t, BOOL space_follows)
{
uschar *p = t;
uschar *yield = NULL;
int cl = tolower(*p);
int cu = toupper(*p);

while (*s)
  {
  if (*s == cl || *s == cu)
    {
    if (yield == NULL) yield = s;
    if (*(++p) == 0)
      {
      if (!space_follows || s[1] == ' ' || s[1] == '\n' ) return yield;
      yield = NULL;
      p = t;
      }
    cl = tolower(*p);
    cu = toupper(*p);
    s++;
    }
  else if (yield != NULL)
    {
    yield = NULL;
    p = t;
    cl = tolower(*p);
    cu = toupper(*p);
    }
  else s++;
  }
return NULL;
}