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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
#include "plstr.h"
#include <string.h>
PR_IMPLEMENT(char*)
PL_strchr(const char* s, char c) {
if ((const char*)0 == s) {
return (char*)0;
}
return strchr(s, c);
}
PR_IMPLEMENT(char*)
PL_strrchr(const char* s, char c) {
if ((const char*)0 == s) {
return (char*)0;
}
return strrchr(s, c);
}
PR_IMPLEMENT(char*)
PL_strnchr(const char* s, char c, PRUint32 n) {
if ((const char*)0 == s) {
return (char*)0;
}
for (; n && *s; s++, n--)
if (*s == c) {
return (char*)s;
}
if (((char)0 == c) && (n > 0) && ((char)0 == *s)) {
return (char*)s;
}
return (char*)0;
}
PR_IMPLEMENT(char*)
PL_strnrchr(const char* s, char c, PRUint32 n) {
const char* p;
if ((const char*)0 == s) {
return (char*)0;
}
for (p = s; n && *p; p++, n--);
if (((char)0 == c) && (n > 0) && ((char)0 == *p)) {
return (char*)p;
}
for (p--; p >= s; p--)
if (*p == c) {
return (char*)p;
}
return (char*)0;
}