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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <string.h>
#include <osl/interlck.h>
#include <rtl/strbuf.hxx>
/*************************************************************************
* rtl_stringbuffer_newFromStr_WithLength
*/
void SAL_CALL rtl_stringbuffer_newFromStr_WithLength( rtl_String ** newStr,
const sal_Char * value,
sal_Int32 count )
{
if (!value)
{
rtl_string_new_WithLength( newStr, 16 );
return;
}
rtl_string_new_WithLength( newStr, count + 16 );
(*newStr)->length = count;
memcpy( (*newStr)->buffer, value, count );
return;
}
/*************************************************************************
* rtl_stringbuffer_newFromStringBuffer
*/
sal_Int32 SAL_CALL rtl_stringbuffer_newFromStringBuffer( rtl_String ** newStr,
sal_Int32 capacity,
rtl_String * oldStr )
{
sal_Int32 newCapacity = capacity;
if (newCapacity < oldStr->length)
newCapacity = oldStr->length;
rtl_string_new_WithLength( newStr, newCapacity );
if (oldStr->length > 0) {
(*newStr)->length = oldStr->length;
memcpy( (*newStr)->buffer, oldStr->buffer, oldStr->length );
}
return newCapacity;
}
/*************************************************************************
* rtl_stringbuffer_ensureCapacity
*/
void SAL_CALL rtl_stringbuffer_ensureCapacity
(rtl_String ** This, sal_Int32* capacity, sal_Int32 minimumCapacity)
{
if (minimumCapacity > *capacity)
{
rtl_String * pTmp = *This;
rtl_String * pNew = NULL;
*capacity = ((*This)->length + 1) * 2;
if (minimumCapacity > *capacity)
/* still lower, set to the minimum capacity */
*capacity = minimumCapacity;
rtl_string_new_WithLength(&pNew, *capacity);
pNew->length = (*This)->length;
*This = pNew;
memcpy( (*This)->buffer, pTmp->buffer, pTmp->length );
rtl_string_release( pTmp );
}
}
/*************************************************************************
* rtl_stringbuffer_insert
*/
void SAL_CALL rtl_stringbuffer_insert( rtl_String ** This,
sal_Int32 * capacity,
sal_Int32 offset,
const sal_Char * str,
sal_Int32 len )
{
sal_Int32 nOldLen;
sal_Char * pBuf;
sal_Int32 n;
if( len != 0 )
{
if (*capacity < (*This)->length + len)
rtl_stringbuffer_ensureCapacity( This, capacity, (*This)->length + len );
/*
if( len == 1 )
This->buffer
*/
nOldLen = (*This)->length;
pBuf = (*This)->buffer;
/* copy the tail */
n = (nOldLen - offset);
if( n == 1 )
/* optimized for 1 character */
pBuf[offset + len] = pBuf[offset];
else if( n > 1 )
memmove( pBuf + offset + len, pBuf + offset, n * sizeof(sal_Char) );
/* insert the new characters */
n = len;
if( len == 1 )
/* optimized for 1 character */
pBuf[offset] = *str;
else if( n > 1 )
memcpy( pBuf + offset, str, len * sizeof(sal_Char) );
(*This)->length = nOldLen + len;
pBuf[ nOldLen + len ] = 0;
}
}
/*************************************************************************
* rtl_stringbuffer_remove
*/
void SAL_CALL rtl_stringbuffer_remove( rtl_String ** This,
sal_Int32 start,
sal_Int32 len )
{
sal_Int32 nTailLen;
sal_Char * pBuf;
if (len > (*This)->length - start)
len = (*This)->length - start;
//remove nothing
if (!len)
return;
pBuf = (*This)->buffer;
nTailLen = (*This)->length - ( start + len );
if (nTailLen)
{
/* move the tail */
memmove(pBuf + start, pBuf + start + len, nTailLen * sizeof(sal_Char));
}
(*This)->length-=len;
pBuf[ (*This)->length ] = 0;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
