зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
3.5 KiB
C++
120 строки
3.5 KiB
C++
/* -*- 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_ULINEBREAK u"\015\012"
|
|
# define NS_LINEBREAK_LEN 2
|
|
#else
|
|
# ifdef XP_UNIX
|
|
# define NS_LINEBREAK "\012"
|
|
# define NS_ULINEBREAK u"\012"
|
|
# define NS_LINEBREAK_LEN 1
|
|
# endif /* XP_UNIX */
|
|
#endif /* XP_WIN */
|
|
|
|
/// 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));
|
|
}
|
|
|
|
/// Case-insensitive string comparison.
|
|
static int32_t strcasecmp(const char* aStr1, const char* aStr2) {
|
|
/* Some functions like `PL_strcasecmp` are reimplementations
|
|
* of the their native POSIX counterparts, which breaks libFuzzer.
|
|
* For this purpose, we use the natives instead when fuzzing.
|
|
*/
|
|
#if defined(LIBFUZZER) && defined(LINUX)
|
|
return int32_t(::strcasecmp(aStr1, aStr2));
|
|
#else
|
|
return int32_t(PL_strcasecmp(aStr1, aStr2));
|
|
#endif
|
|
}
|
|
|
|
/// Case-insensitive string comparison with length
|
|
static int32_t strncasecmp(const char* aStr1, const char* aStr2,
|
|
uint32_t aMaxLen) {
|
|
#if defined(LIBFUZZER) && defined(LINUX)
|
|
int32_t result = int32_t(::strncasecmp(aStr1, aStr2, aMaxLen));
|
|
#else
|
|
int32_t result = int32_t(PL_strncasecmp(aStr1, aStr2, aMaxLen));
|
|
#endif
|
|
// 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;
|
|
}
|
|
|
|
/// Case-insensitive substring search.
|
|
static char* strcasestr(const char* aStr1, const char* aStr2) {
|
|
#if defined(LIBFUZZER) && defined(LINUX)
|
|
return const_cast<char*>(::strcasestr(aStr1, aStr2));
|
|
#else
|
|
return PL_strcasestr(aStr1, aStr2);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
|
|
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);
|
|
|
|
// 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 IsAsciiSpace(char16_t aChar) {
|
|
return NS_IsAsciiWhitespace(aChar);
|
|
}
|
|
};
|
|
|
|
inline bool NS_IS_SPACE(char16_t aChar) {
|
|
return ((int(aChar) & 0x7f) == int(aChar)) && isspace(int(aChar));
|
|
}
|
|
|
|
#endif /* nsCRT_h___ */
|