зеркало из https://github.com/mozilla/pjs.git
343 строки
9.2 KiB
C++
343 строки
9.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Unicode case conversion helpers.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corp..
|
|
* Portions created by the Initial Developer are Copyright (C) 2002
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Alec Flett <alecf@netscape.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsString.h"
|
|
#include "nsUnicharUtils.h"
|
|
#include "nsUnicharUtilCIID.h"
|
|
#include "nsICaseConversion.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsCRT.h"
|
|
|
|
#include "nsIObserver.h"
|
|
#include "nsIObserverService.h"
|
|
|
|
// global cache of the case conversion service
|
|
static nsICaseConversion *gCaseConv = nsnull;
|
|
|
|
class nsShutdownObserver : public nsIObserver
|
|
{
|
|
public:
|
|
nsShutdownObserver() { }
|
|
virtual ~nsShutdownObserver() {}
|
|
NS_DECL_ISUPPORTS
|
|
|
|
NS_IMETHOD Observe(nsISupports *aSubject, const char *aTopic,
|
|
const PRUnichar *aData)
|
|
{
|
|
if (nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)==0) {
|
|
NS_IF_RELEASE(gCaseConv);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS1(nsShutdownObserver, nsIObserver)
|
|
|
|
static nsresult NS_InitCaseConversion() {
|
|
if (gCaseConv) return NS_OK;
|
|
|
|
nsresult rv;
|
|
|
|
rv = CallGetService(NS_UNICHARUTIL_CONTRACTID, &gCaseConv);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIObserverService> obs =
|
|
do_GetService("@mozilla.org/observer-service;1", &rv);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsShutdownObserver *observer = new nsShutdownObserver();
|
|
if (observer)
|
|
obs->AddObserver(observer, NS_XPCOM_SHUTDOWN_OBSERVER_ID, PR_FALSE);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
class ConvertToLowerCase
|
|
{
|
|
public:
|
|
typedef PRUnichar value_type;
|
|
|
|
ConvertToLowerCase()
|
|
{
|
|
NS_InitCaseConversion();
|
|
}
|
|
|
|
PRUint32 write( const PRUnichar* aSource, PRUint32 aSourceLength)
|
|
{
|
|
if (gCaseConv)
|
|
gCaseConv->ToLower(aSource, NS_CONST_CAST(PRUnichar*,aSource), aSourceLength);
|
|
else
|
|
NS_WARNING("No case converter: no conversion done");
|
|
|
|
return aSourceLength;
|
|
}
|
|
};
|
|
|
|
#ifdef MOZ_V1_STRING_ABI
|
|
void
|
|
ToLowerCase( nsAString& aString )
|
|
{
|
|
nsAString::iterator fromBegin, fromEnd;
|
|
ConvertToLowerCase converter;
|
|
copy_string(aString.BeginWriting(fromBegin), aString.EndWriting(fromEnd), converter);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
ToLowerCase( nsASingleFragmentString& aString )
|
|
{
|
|
ConvertToLowerCase converter;
|
|
PRUnichar* start;
|
|
converter.write(aString.BeginWriting(start), aString.Length());
|
|
}
|
|
|
|
void
|
|
ToLowerCase( nsString& aString )
|
|
{
|
|
ConvertToLowerCase converter;
|
|
PRUnichar* start;
|
|
converter.write(aString.BeginWriting(start), aString.Length());
|
|
}
|
|
|
|
class CopyToLowerCase
|
|
{
|
|
public:
|
|
typedef PRUnichar value_type;
|
|
|
|
CopyToLowerCase( nsAString::iterator& aDestIter )
|
|
: mIter(aDestIter)
|
|
{
|
|
NS_InitCaseConversion();
|
|
}
|
|
|
|
PRUint32 write( const PRUnichar* aSource, PRUint32 aSourceLength )
|
|
{
|
|
PRUint32 len = PR_MIN(PRUint32(mIter.size_forward()), aSourceLength);
|
|
PRUnichar* dest = mIter.get();
|
|
if (gCaseConv)
|
|
gCaseConv->ToLower(aSource, dest, len);
|
|
else {
|
|
NS_WARNING("No case converter: only copying");
|
|
memcpy(dest, aSource, len * sizeof(*aSource));
|
|
}
|
|
mIter.advance(len);
|
|
return len;
|
|
}
|
|
|
|
protected:
|
|
nsAString::iterator& mIter;
|
|
};
|
|
|
|
void
|
|
ToLowerCase( const nsAString& aSource, nsAString& aDest )
|
|
{
|
|
nsAString::const_iterator fromBegin, fromEnd;
|
|
nsAString::iterator toBegin;
|
|
aDest.SetLength(aSource.Length());
|
|
CopyToLowerCase converter(aDest.BeginWriting(toBegin));
|
|
copy_string(aSource.BeginReading(fromBegin), aSource.EndReading(fromEnd), converter);
|
|
}
|
|
|
|
class ConvertToUpperCase
|
|
{
|
|
public:
|
|
typedef PRUnichar value_type;
|
|
|
|
ConvertToUpperCase()
|
|
{
|
|
NS_InitCaseConversion();
|
|
}
|
|
|
|
PRUint32 write( const PRUnichar* aSource, PRUint32 aSourceLength)
|
|
{
|
|
if (gCaseConv)
|
|
gCaseConv->ToUpper(aSource, NS_CONST_CAST(PRUnichar*,aSource), aSourceLength);
|
|
else
|
|
NS_WARNING("No case converter: no conversion done");
|
|
|
|
return aSourceLength;
|
|
}
|
|
};
|
|
|
|
#ifdef MOZ_V1_STRING_ABI
|
|
void
|
|
ToUpperCase( nsAString& aString )
|
|
{
|
|
nsAString::iterator fromBegin, fromEnd;
|
|
ConvertToUpperCase converter;
|
|
copy_string(aString.BeginWriting(fromBegin), aString.EndWriting(fromEnd), converter);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
ToUpperCase( nsASingleFragmentString& aString )
|
|
{
|
|
ConvertToUpperCase converter;
|
|
PRUnichar* start;
|
|
converter.write(aString.BeginWriting(start), aString.Length());
|
|
}
|
|
|
|
void
|
|
ToUpperCase( nsString& aString )
|
|
{
|
|
ConvertToUpperCase converter;
|
|
PRUnichar* start;
|
|
converter.write(aString.BeginWriting(start), aString.Length());
|
|
}
|
|
|
|
class CopyToUpperCase
|
|
{
|
|
public:
|
|
typedef PRUnichar value_type;
|
|
|
|
CopyToUpperCase( nsAString::iterator& aDestIter )
|
|
: mIter(aDestIter)
|
|
{
|
|
NS_InitCaseConversion();
|
|
}
|
|
|
|
PRUint32 write( const PRUnichar* aSource, PRUint32 aSourceLength )
|
|
{
|
|
PRUint32 len = PR_MIN(PRUint32(mIter.size_forward()), aSourceLength);
|
|
PRUnichar* dest = mIter.get();
|
|
if (gCaseConv)
|
|
gCaseConv->ToUpper(aSource, dest, len);
|
|
else {
|
|
NS_WARNING("No case converter: only copying");
|
|
memcpy(dest, aSource, len * sizeof(*aSource));
|
|
}
|
|
mIter.advance(len);
|
|
return len;
|
|
}
|
|
|
|
protected:
|
|
nsAString::iterator& mIter;
|
|
};
|
|
|
|
void
|
|
ToUpperCase( const nsAString& aSource, nsAString& aDest )
|
|
{
|
|
nsAString::const_iterator fromBegin, fromEnd;
|
|
nsAString::iterator toBegin;
|
|
aDest.SetLength(aSource.Length());
|
|
CopyToUpperCase converter(aDest.BeginWriting(toBegin));
|
|
copy_string(aSource.BeginReading(fromBegin), aSource.EndReading(fromEnd), converter);
|
|
}
|
|
|
|
int
|
|
nsCaseInsensitiveStringComparator::operator()( const PRUnichar* lhs, const PRUnichar* rhs, PRUint32 aLength ) const
|
|
{
|
|
NS_InitCaseConversion();
|
|
PRInt32 result;
|
|
if (gCaseConv) {
|
|
gCaseConv->CaseInsensitiveCompare(lhs, rhs, aLength, &result);
|
|
}
|
|
else {
|
|
NS_WARNING("No case converter: using default");
|
|
nsDefaultStringComparator comparator;
|
|
result = comparator(lhs, rhs, aLength);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int
|
|
nsCaseInsensitiveStringComparator::operator()( PRUnichar lhs, PRUnichar rhs ) const
|
|
{
|
|
// see if they're an exact match first
|
|
if (lhs == rhs) return 0;
|
|
|
|
NS_InitCaseConversion();
|
|
|
|
if (gCaseConv) {
|
|
gCaseConv->ToLower(lhs, &lhs);
|
|
gCaseConv->ToLower(rhs, &rhs);
|
|
} else {
|
|
if (lhs < 256)
|
|
lhs = tolower(char(lhs));
|
|
if (rhs < 256)
|
|
rhs = tolower(char(rhs));
|
|
NS_WARNING("No case converter: no conversion done");
|
|
}
|
|
|
|
if (lhs == rhs) return 0;
|
|
if (lhs < rhs) return -1;
|
|
return 1;
|
|
}
|
|
|
|
PRUnichar
|
|
ToLowerCase(PRUnichar aChar)
|
|
{
|
|
PRUnichar result;
|
|
if (NS_FAILED(NS_InitCaseConversion()))
|
|
return aChar;
|
|
|
|
if (gCaseConv)
|
|
gCaseConv->ToLower(aChar, &result);
|
|
else {
|
|
NS_WARNING("No case converter: no conversion done");
|
|
if (aChar < 256)
|
|
result = tolower(char(aChar));
|
|
else
|
|
result = aChar;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
PRUnichar
|
|
ToUpperCase(PRUnichar aChar)
|
|
{
|
|
PRUnichar result;
|
|
if (NS_FAILED(NS_InitCaseConversion()))
|
|
return aChar;
|
|
|
|
if (gCaseConv)
|
|
gCaseConv->ToUpper(aChar, &result);
|
|
else {
|
|
NS_WARNING("No case converter: no conversion done");
|
|
if (aChar < 256)
|
|
result = toupper(char(aChar));
|
|
else
|
|
result = aChar;
|
|
}
|
|
return result;
|
|
}
|
|
|