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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef nsCRT_h___
#define nsCRT_h___
#include <stdlib.h>
#include <ctype.h>
#include "plstr.h"
#include "nscore.h"
#include "nsCRTGlue.h"
#if defined(XP_WIN)
# define NS_LINEBREAK "\015\012"
# define NS_LINEBREAK_LEN 2
#else
# ifdef XP_UNIX
# define NS_LINEBREAK "\012"
# define NS_LINEBREAK_LEN 1
# endif /* XP_UNIX */
#endif /* XP_WIN */
extern const char16_t kIsoLatin1ToUCS2[256];
// This macro can be used in a class declaration for classes that want
// to ensure that their instance memory is zeroed.
#define NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW \
void* operator new(size_t sz) CPP_THROW_NEW { \
void* rv = ::operator new(sz); \
if (rv) { \
memset(rv, 0, sz); \
} \
return rv; \
} \
void operator delete(void* ptr) { \
::operator delete(ptr); \
}
// This macro works with the next macro to declare a non-inlined
// version of the above.
#define NS_DECL_ZEROING_OPERATOR_NEW \
void* operator new(size_t sz) CPP_THROW_NEW; \
void operator delete(void* ptr);
#define NS_IMPL_ZEROING_OPERATOR_NEW(_class) \
void* _class::operator new(size_t sz) CPP_THROW_NEW { \
void* rv = ::operator new(sz); \
if (rv) { \
memset(rv, 0, sz); \
} \
return rv; \
} \
void _class::operator delete(void* ptr) { \
::operator delete(ptr); \
}
// Freeing helper
#define CRTFREEIF(x) if (x) { nsCRT::free(x); x = 0; }
/// This is a wrapper class around all the C runtime functions.
class nsCRT
{
public:
enum
{
LF = '\n' /* Line Feed */,
VTAB = '\v' /* Vertical Tab */,
CR = '\r' /* Carriage Return */
};
/// String comparison.
static int32_t strcmp(const char* aStr1, const char* aStr2)
{
return int32_t(PL_strcmp(aStr1, aStr2));
}
static int32_t strncmp(const char* aStr1, const char* aStr2,
uint32_t aMaxLen)
{
return int32_t(PL_strncmp(aStr1, aStr2, aMaxLen));
}
/// Case-insensitive string comparison.
static int32_t strcasecmp(const char* aStr1, const char* aStr2)
{
return int32_t(PL_strcasecmp(aStr1, aStr2));
}
/// Case-insensitive string comparison with length
static int32_t strncasecmp(const char* aStr1, const char* aStr2,
uint32_t aMaxLen)
{
int32_t result = int32_t(PL_strncasecmp(aStr1, aStr2, aMaxLen));
//Egads. PL_strncasecmp is returning *very* negative numbers.
//Some folks expect -1,0,1, so let's temper its enthusiasm.
if (result < 0) {
result = -1;
}
return result;
}
static int32_t strncmp(const char* aStr1, const char* aStr2, int32_t aMaxLen)
{
// inline the first test (assumes strings are not null):
int32_t diff =
((const unsigned char*)aStr1)[0] - ((const unsigned char*)aStr2)[0];
if (diff != 0) {
return diff;
}
return int32_t(PL_strncmp(aStr1, aStr2, unsigned(aMaxLen)));
}
/**
How to use this fancy (thread-safe) version of strtok:
void main(void) {
printf("%s\n\nTokens:\n", string);
// Establish string and get the first token:
char* newStr;
token = nsCRT::strtok(string, seps, &newStr);
while (token != nullptr) {
// While there are tokens in "string"
printf(" %s\n", token);
// Get next token:
token = nsCRT::strtok(newStr, seps, &newStr);
}
}
* WARNING - STRTOK WHACKS str THE FIRST TIME IT IS CALLED *
* MAKE A COPY OF str IF YOU NEED TO USE IT AFTER strtok() *
*/
static char* strtok(char* aStr, const char* aDelims, char** aNewStr);
/// Like strcmp except for ucs2 strings
static int32_t strcmp(const char16_t* aStr1, const char16_t* aStr2);
/// Like strcmp except for ucs2 strings
static int32_t strncmp(const char16_t* aStr1, const char16_t* aStr2,
uint32_t aMaxLen);
// The GNU libc has memmem, which is strstr except for binary data
// This is our own implementation that uses memmem on platforms
// where it's available.
static const char* memmem(const char* aHaystack, uint32_t aHaystackLen,
const char* aNeedle, uint32_t aNeedleLen);
// String to longlong
static int64_t atoll(const char* aStr);
static char ToUpper(char aChar) { return NS_ToUpper(aChar); }
static char ToLower(char aChar) { return NS_ToLower(aChar); }
static bool IsUpper(char aChar) { return NS_IsUpper(aChar); }
static bool IsLower(char aChar) { return NS_IsLower(aChar); }
static bool IsAscii(char16_t aChar) { return NS_IsAscii(aChar); }
static bool IsAscii(const char16_t* aString) { return NS_IsAscii(aString); }
static bool IsAsciiAlpha(char16_t aChar) { return NS_IsAsciiAlpha(aChar); }
static bool IsAsciiDigit(char16_t aChar) { return NS_IsAsciiDigit(aChar); }
static bool IsAsciiSpace(char16_t aChar) { return NS_IsAsciiWhitespace(aChar); }
static bool IsAscii(const char* aString) { return NS_IsAscii(aString); }
static bool IsAscii(const char* aString, uint32_t aLength)
{
return NS_IsAscii(aString, aLength);
}
};
inline bool
NS_IS_SPACE(char16_t aChar)
{
return ((int(aChar) & 0x7f) == int(aChar)) && isspace(int(aChar));
}
#define NS_IS_CNTRL(i) ((((unsigned int) (i)) > 0x7f) ? (int) 0 : iscntrl(i))
#define NS_IS_DIGIT(i) ((((unsigned int) (i)) > 0x7f) ? (int) 0 : isdigit(i))
#if defined(XP_WIN)
#define NS_IS_ALPHA(VAL) (isascii((int)(VAL)) && isalpha((int)(VAL)))
#else
#define NS_IS_ALPHA(VAL) ((((unsigned int) (VAL)) > 0x7f) ? (int) 0 : isalpha((int)(VAL)))
#endif
#endif /* nsCRT_h___ */
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