/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "plstr.h"
#include <string.h>

PR_IMPLEMENT(char*)
PL_strpbrk(const char* s, const char* list) {
  if (((const char*)0 == s) || ((const char*)0 == list)) {
    return (char*)0;
  }

  return strpbrk(s, list);
}

PR_IMPLEMENT(char*)
PL_strprbrk(const char* s, const char* list) {
  const char* p;
  const char* r;

  if (((const char*)0 == s) || ((const char*)0 == list)) {
    return (char*)0;
  }

  for (r = s; *r; r++);

  for (r--; r >= s; r--)
    for (p = list; *p; p++)
      if (*r == *p) {
        return (char*)r;
      }

  return (char*)0;
}

PR_IMPLEMENT(char*)
PL_strnpbrk(const char* s, const char* list, PRUint32 max) {
  const char* p;

  if (((const char*)0 == s) || ((const char*)0 == list)) {
    return (char*)0;
  }

  for (; max && *s; s++, max--)
    for (p = list; *p; p++)
      if (*s == *p) {
        return (char*)s;
      }

  return (char*)0;
}

PR_IMPLEMENT(char*)
PL_strnprbrk(const char* s, const char* list, PRUint32 max) {
  const char* p;
  const char* r;

  if (((const char*)0 == s) || ((const char*)0 == list)) {
    return (char*)0;
  }

  for (r = s; max && *r; r++, max--);

  for (r--; r >= s; r--)
    for (p = list; *p; p++)
      if (*r == *p) {
        return (char*)r;
      }

  return (char*)0;
}