/* -*- 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___ */