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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <strhelper.hxx>
namespace {
bool isSpace( sal_Unicode cChar )
{
return
cChar == ' ' || cChar == '\t' ||
cChar == '\r' || cChar == '\n' ||
cChar == 0x0c || cChar == 0x0b;
}
bool isProtect( sal_Unicode cChar )
{
return cChar == '`' || cChar == '\'' || cChar == '"';
}
void CopyUntil( char*& pTo, const char*& pFrom, char cUntil, bool bIncludeUntil = false )
{
do
{
if( *pFrom == '\\' )
{
pFrom++;
if( *pFrom )
{
*pTo = *pFrom;
pTo++;
}
}
else if( bIncludeUntil || ! isProtect( *pFrom ) )
{
*pTo = *pFrom;
pTo++;
}
pFrom++;
} while( *pFrom && *pFrom != cUntil );
// copy the terminating character unless zero or protector
if( ! isProtect( *pFrom ) || bIncludeUntil )
{
*pTo = *pFrom;
if( *pTo )
pTo++;
}
if( *pFrom )
pFrom++;
}
void CopyUntil( sal_Unicode*& pTo, const sal_Unicode*& pFrom, sal_Unicode cUntil, bool bIncludeUntil = false )
{
do
{
if( *pFrom == '\\' )
{
pFrom++;
if( *pFrom )
{
*pTo = *pFrom;
pTo++;
}
}
else if( bIncludeUntil || ! isProtect( *pFrom ) )
{
*pTo = *pFrom;
pTo++;
}
if( *pFrom )
pFrom++;
} while( *pFrom && *pFrom != cUntil );
// copy the terminating character unless zero or protector
if( ! isProtect( *pFrom ) || bIncludeUntil )
{
*pTo = *pFrom;
if( *pTo )
pTo++;
}
if( *pFrom )
pFrom++;
}
}
namespace psp {
OUString GetCommandLineToken( int nToken, const OUString& rLine )
{
sal_Int32 nLen = rLine.getLength();
if( ! nLen )
return OUString();
int nActualToken = 0;
sal_Unicode* pBuffer = static_cast<sal_Unicode*>(alloca( sizeof(sal_Unicode)*( nLen + 1 ) ));
const sal_Unicode* pRun = rLine.getStr();
sal_Unicode* pLeap = nullptr;
while( *pRun && nActualToken <= nToken )
{
while( *pRun && isSpace( *pRun ) )
pRun++;
pLeap = pBuffer;
while( *pRun && ! isSpace( *pRun ) )
{
if( *pRun == '\\' )
{
// escapement
pRun++;
*pLeap = *pRun;
pLeap++;
if( *pRun )
pRun++;
}
else if( *pRun == '`' )
CopyUntil( pLeap, pRun, '`' );
else if( *pRun == '\'' )
CopyUntil( pLeap, pRun, '\'' );
else if( *pRun == '"' )
CopyUntil( pLeap, pRun, '"' );
else
{
*pLeap = *pRun;
pLeap++;
pRun++;
}
}
if( nActualToken != nToken )
pBuffer[0] = 0;
nActualToken++;
}
*pLeap = 0;
return OUString(pBuffer);
}
OString GetCommandLineToken(int nToken, const OString& rLine)
{
sal_Int32 nLen = rLine.getLength();
if (!nLen)
return rLine;
int nActualToken = 0;
char* pBuffer = static_cast<char*>(alloca( nLen + 1 ));
const char* pRun = rLine.getStr();
char* pLeap = nullptr;
while( *pRun && nActualToken <= nToken )
{
while( *pRun && isSpace( *pRun ) )
pRun++;
pLeap = pBuffer;
while( *pRun && ! isSpace( *pRun ) )
{
if( *pRun == '\\' )
{
// escapement
pRun++;
*pLeap = *pRun;
pLeap++;
if( *pRun )
pRun++;
}
else if( *pRun == '`' )
CopyUntil( pLeap, pRun, '`' );
else if( *pRun == '\'' )
CopyUntil( pLeap, pRun, '\'' );
else if( *pRun == '"' )
CopyUntil( pLeap, pRun, '"' );
else
{
*pLeap = *pRun;
pLeap++;
pRun++;
}
}
if( nActualToken != nToken )
pBuffer[0] = 0;
nActualToken++;
}
*pLeap = 0;
return pBuffer;
}
int GetCommandLineTokenCount(const OUString& rLine)
{
if (rLine.isEmpty())
return 0;
int nTokenCount = 0;
const sal_Unicode *pRun = rLine.getStr();
while( *pRun )
{
while( *pRun && isSpace( *pRun ) )
pRun++;
if( ! *pRun )
break;
while( *pRun && ! isSpace( *pRun ) )
{
if( *pRun == '\\' )
{
// escapement
pRun++;
if( *pRun )
pRun++;
}
else if( *pRun == '`' )
{
do pRun++; while( *pRun && *pRun != '`' );
if( *pRun )
pRun++;
}
else if( *pRun == '\'' )
{
do pRun++; while( *pRun && *pRun != '\'' );
if( *pRun )
pRun++;
}
else if( *pRun == '"' )
{
do pRun++; while( *pRun && *pRun != '"' );
if( *pRun )
pRun++;
}
else
pRun++;
}
nTokenCount++;
}
return nTokenCount;
}
OUString WhitespaceToSpace( std::u16string_view rLine, bool bProtect )
{
size_t nLen = rLine.size();
if( ! nLen )
return OUString();
sal_Unicode *pBuffer = static_cast<sal_Unicode*>(alloca( sizeof(sal_Unicode)*(nLen + 1) ));
const sal_Unicode *pRun = rLine.data();
const sal_Unicode * const pEnd = rLine.data() + rLine.size();
sal_Unicode *pLeap = pBuffer;
while( pRun != pEnd )
{
if( pRun != pEnd && isSpace( *pRun ) )
{
*pLeap = ' ';
pLeap++;
pRun++;
}
while( pRun != pEnd && isSpace( *pRun ) )
pRun++;
while( pRun != pEnd && ! isSpace( *pRun ) )
{
if( *pRun == '\\' )
{
// escapement
pRun++;
*pLeap = *pRun;
pLeap++;
if( pRun != pEnd )
pRun++;
}
else if( bProtect && *pRun == '`' )
CopyUntil( pLeap, pRun, '`', true );
else if( bProtect && *pRun == '\'' )
CopyUntil( pLeap, pRun, '\'', true );
else if( bProtect && *pRun == '"' )
CopyUntil( pLeap, pRun, '"', true );
else
{
*pLeap = *pRun;
++pLeap;
++pRun;
}
}
}
*pLeap = 0;
// there might be a space at beginning or end
if (pLeap > pBuffer)
{
pLeap--;
if( *pLeap == ' ' )
*pLeap = 0;
}
return OUString(*pBuffer == ' ' ? pBuffer+1 : pBuffer);
}
OString WhitespaceToSpace(std::string_view rLine)
{
size_t nLen = rLine.size();
if (!nLen)
return OString();
char *pBuffer = static_cast<char*>(alloca( nLen + 1 ));
const char *pRun = rLine.data();
const char * const pEnd = rLine.data() + rLine.size();
char *pLeap = pBuffer;
while( pRun != pEnd )
{
if( pRun != pEnd && isSpace( *pRun ) )
{
*pLeap = ' ';
pLeap++;
pRun++;
}
while( pRun != pEnd && isSpace( *pRun ) )
pRun++;
while( pRun != pEnd && ! isSpace( *pRun ) )
{
if( *pRun == '\\' )
{
// escapement
pRun++;
*pLeap = *pRun;
pLeap++;
if( pRun != pEnd )
pRun++;
}
else if( *pRun == '`' )
CopyUntil( pLeap, pRun, '`', true );
else if( *pRun == '\'' )
CopyUntil( pLeap, pRun, '\'', true );
else if( *pRun == '"' )
CopyUntil( pLeap, pRun, '"', true );
else
{
*pLeap = *pRun;
++pLeap;
++pRun;
}
}
}
*pLeap = 0;
// there might be a space at beginning or end
assert(pLeap > pBuffer);
pLeap--;
#if defined(__GNUC__) && __GNUC__ == 12
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
#endif
if( *pLeap == ' ' )
*pLeap = 0;
#if defined(__GNUC__) && __GNUC__ == 12
#pragma GCC diagnostic pop
#endif
return *pBuffer == ' ' ? pBuffer+1 : pBuffer;
}
} // namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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