зеркало из https://github.com/mozilla/pjs.git
232 строки
7.2 KiB
C++
232 строки
7.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsCRT_h___
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#define nsCRT_h___
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#include <stdlib.h>
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#include <string.h>
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#include "plstr.h"
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#include "nscore.h"
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#include "prtypes.h"
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#define CR '\015'
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#define LF '\012'
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#define VTAB '\013'
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#define FF '\014'
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#define TAB '\011'
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#define CRLF "\015\012" /* A CR LF equivalent string */
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#ifdef XP_MAC
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# define NS_LINEBREAK "\015"
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# define NS_LINEBREAK_LEN 1
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#else
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# ifdef XP_PC
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# define NS_LINEBREAK "\015\012"
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# define NS_LINEBREAK_LEN 2
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# else
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# if defined(XP_UNIX) || defined(XP_BEOS)
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# define NS_LINEBREAK "\012"
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# define NS_LINEBREAK_LEN 1
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# endif /* XP_UNIX */
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# endif /* XP_PC */
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#endif /* XP_MAC */
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extern const PRUnichar kIsoLatin1ToUCS2[256];
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// This macro can be used in a class declaration for classes that want
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// to ensure that their instance memory is zeroed.
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#define NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW \
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void* operator new(size_t sz) { \
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void* rv = ::operator new(sz); \
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if (rv) { \
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nsCRT::zero(rv, sz); \
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} \
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return rv; \
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} \
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void operator delete(void* ptr) { \
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::operator delete(ptr); \
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}
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// This macro works with the next macro to declare a non-inlined
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// version of the above.
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#define NS_DECL_ZEROING_OPERATOR_NEW \
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void* operator new(size_t sz); \
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void operator delete(void* ptr);
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#define NS_IMPL_ZEROING_OPERATOR_NEW(_class) \
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void* _class::operator new(size_t sz) { \
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void* rv = ::operator new(sz); \
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if (rv) { \
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nsCRT::zero(rv, sz); \
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} \
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return rv; \
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} \
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void _class::operator delete(void* ptr) { \
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::operator delete(ptr); \
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}
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/// This is a wrapper class around all the C runtime functions.
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class NS_COM nsCRT {
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public:
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/** Copy bytes from aSrc to aDest.
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@param aDest the destination address
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@param aSrc the source address
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@param aCount the number of bytes to copy
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*/
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static void memcpy(void* aDest, const void* aSrc, PRUint32 aCount) {
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::memcpy(aDest, aSrc, (size_t)aCount);
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}
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static void memmove(void* aDest, const void* aSrc, PRUint32 aCount) {
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::memmove(aDest, aSrc, (size_t)aCount);
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}
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static void memset(void* aDest, PRUint8 aByte, PRUint32 aCount) {
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::memset(aDest, aByte, aCount);
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}
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static void zero(void* aDest, PRUint32 aCount) {
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::memset(aDest, 0, (size_t)aCount);
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}
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/** Compute the string length of s
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@param s the string in question
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@return the length of s
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*/
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static PRUint32 strlen(const char* s) {
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return PRUint32(::strlen(s));
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}
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/// Compare s1 and s2.
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static PRInt32 strcmp(const char* s1, const char* s2) {
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return PRUint32(PL_strcmp(s1, s2));
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}
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static PRInt32 strncmp(const char* s1, const char* s2,
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PRUint32 aMaxLen) {
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return PRInt32(PL_strncmp(s1, s2, aMaxLen));
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}
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/// Case-insensitive string comparison.
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static PRInt32 strcasecmp(const char* s1, const char* s2) {
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return PRInt32(PL_strcasecmp(s1, s2));
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}
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/// Case-insensitive string comparison with length
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static PRInt32 strncasecmp(const char* s1, const char* s2, PRUint32 aMaxLen) {
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return PRInt32(PL_strncasecmp(s1, s2, aMaxLen));
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}
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static PRInt32 strncmp(const char* s1, const char* s2, PRInt32 aMaxLen) {
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return PRInt32(PL_strncmp(s1,s2,aMaxLen));
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}
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static char* strdup(const char* str) {
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return PL_strdup(str);
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}
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static void free(char* str) {
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PL_strfree(str);
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}
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/**
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How to use this fancy (thread-safe) version of strtok:
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void main( void ) {
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printf( "%s\n\nTokens:\n", string );
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// Establish string and get the first token:
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char* newStr;
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token = nsCRT::strtok( string, seps, &newStr );
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while( token != NULL ) {
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// While there are tokens in "string"
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printf( " %s\n", token );
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// Get next token:
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token = nsCRT::strtok( newStr, seps, &newStr );
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}
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}
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* WARNING - STRTOK WHACKS str THE FIRST TIME IT IS CALLED *
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* MAKE A COPY OF str IF YOU NEED TO USE IT AFTER strtok() *
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*/
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static char* strtok(char* str, const char* delims, char* *newStr);
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/// Like strlen except for ucs2 strings
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static PRUint32 strlen(const PRUnichar* s);
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/// Like strcmp except for ucs2 strings
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static PRInt32 strcmp(const PRUnichar* s1, const PRUnichar* s2);
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/// Like strcmp except for ucs2 strings
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static PRInt32 strncmp(const PRUnichar* s1, const PRUnichar* s2,
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PRUint32 aMaxLen);
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/// Like strcasecmp except for ucs2 strings
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static PRInt32 strcasecmp(const PRUnichar* s1, const PRUnichar* s2);
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/// Like strncasecmp except for ucs2 strings
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static PRInt32 strncasecmp(const PRUnichar* s1, const PRUnichar* s2,
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PRUint32 aMaxLen);
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/// Like strcmp with a char* and a ucs2 string
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static PRInt32 strcmp(const PRUnichar* s1, const char* s2);
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/// Like strncmp with a char* and a ucs2 string
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static PRInt32 strncmp(const PRUnichar* s1, const char* s2,
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PRUint32 aMaxLen);
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/// Like strcasecmp with a char* and a ucs2 string
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static PRInt32 strcasecmp(const PRUnichar* s1, const char* s2);
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/// Like strncasecmp with a char* and a ucs2 string
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static PRInt32 strncasecmp(const PRUnichar* s1, const char* s2,
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PRUint32 aMaxLen);
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// Note: uses new[] to allocate memory, so you must use delete[] to
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// free the memory
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static PRUnichar* strdup(const PRUnichar* str);
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static void free(PRUnichar* str) {
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delete[] str;
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}
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/// Compute a hashcode for a C string
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static PRUint32 HashValue(const char* s1);
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/// Same as above except that we return the length in s1len
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static PRUint32 HashValue(const char* s1, PRUint32* s1len);
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/// Compute a hashcode for a ucs2 string
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static PRUint32 HashValue(const PRUnichar* s1);
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/// Same as above except that we return the length in s1len
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static PRUint32 HashValue(const PRUnichar* s1, PRUint32* s1len);
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/// String to integer.
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static PRInt32 atoi( const PRUnichar *string );
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static PRUnichar ToUpper(PRUnichar aChar);
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static PRUnichar ToLower(PRUnichar aChar);
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static PRBool IsUpper(PRUnichar aChar);
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static PRBool IsLower(PRUnichar aChar);
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};
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#endif /* nsCRT_h___ */
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