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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 <string.h>
#include <osl/interlck.h>
#include <rtl/ustrbuf.hxx>
#include <strimp.hxx>
#if USE_SDT_PROBES
#define RTL_LOG_STRING_BITS 16
#endif
void SAL_CALL rtl_uStringbuffer_newFromStr_WithLength( rtl_uString ** newStr,
const sal_Unicode * value,
sal_Int32 count)
{
if (!value)
{
rtl_uString_new_WithLength( newStr, 16 );
return;
}
rtl_uString_new_WithLength( newStr, count + 16 );
(*newStr)->length = count;
memcpy( (*newStr)->buffer, value, count * sizeof(sal_Unicode));
RTL_LOG_STRING_NEW( *newStr );
return;
}
rtl_uString * SAL_CALL rtl_uStringBuffer_refReturn( rtl_uString * pThis )
{
RTL_LOG_STRING_NEW( pThis );
rtl_uString_acquire( pThis );
return pThis;
}
rtl_uString * SAL_CALL rtl_uStringBuffer_makeStringAndClear( rtl_uString ** ppThis,
sal_Int32 *nCapacity )
{
// avoid an un-necessary atomic ref/unref pair
rtl_uString *pStr = *ppThis;
*ppThis = NULL;
rtl_uString_new (ppThis);
*nCapacity = 0;
RTL_LOG_STRING_NEW( pStr );
return pStr;
}
sal_Int32 SAL_CALL rtl_uStringbuffer_newFromStringBuffer( rtl_uString ** newStr,
sal_Int32 capacity,
rtl_uString * oldStr )
{
sal_Int32 newCapacity = capacity;
if (newCapacity < oldStr->length)
newCapacity = oldStr->length;
rtl_uString_new_WithLength( newStr, newCapacity );
if (oldStr->length > 0) {
(*newStr)->length = oldStr->length;
memcpy( (*newStr)->buffer, oldStr->buffer, oldStr->length * sizeof(sal_Unicode));
}
RTL_LOG_STRING_NEW( *newStr );
return newCapacity;
}
void SAL_CALL rtl_uStringbuffer_ensureCapacity
(rtl_uString ** This, sal_Int32* capacity, sal_Int32 minimumCapacity)
{
if (minimumCapacity > *capacity)
{
rtl_uString * pTmp = *This;
rtl_uString * pNew = NULL;
*capacity = ((*This)->length + 1) * 2;
if (minimumCapacity > *capacity)
/* still lower, set to the minimum capacity */
*capacity = minimumCapacity;
rtl_uString_new_WithLength(&pNew, *capacity);
pNew->length = (*This)->length;
*This = pNew;
memcpy( (*This)->buffer, pTmp->buffer, pTmp->length * sizeof(sal_Unicode) );
RTL_LOG_STRING_NEW( pTmp ); // with accurate contents
rtl_uString_release( pTmp );
}
}
void SAL_CALL rtl_uStringbuffer_insert( rtl_uString ** This,
sal_Int32 * capacity,
sal_Int32 offset,
const sal_Unicode * str,
sal_Int32 len)
{
sal_Int32 nOldLen;
sal_Unicode * pBuf;
sal_Int32 n;
if( len != 0 )
{
if (*capacity < (*This)->length + len)
rtl_uStringbuffer_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_Unicode) );
/* insert the new characters */
if( len == 1 )
/* optimized for 1 character */
pBuf[offset] = *str;
else if( len > 1 )
memcpy( pBuf + offset, str, len * sizeof(sal_Unicode) );
(*This)->length = nOldLen + len;
pBuf[ nOldLen + len ] = 0;
}
}
void rtl_uStringbuffer_insertUtf32(
rtl_uString ** pThis, sal_Int32 * capacity, sal_Int32 offset, sal_uInt32 c)
SAL_THROW_EXTERN_C()
{
sal_Unicode buf[2];
sal_Int32 len;
OSL_ASSERT(c <= 0x10FFFF && !(c >= 0xD800 && c <= 0xDFFF));
if (c <= 0xFFFF) {
buf[0] = (sal_Unicode) c;
len = 1;
} else {
c -= 0x10000;
buf[0] = (sal_Unicode) ((c >> 10) | 0xD800);
buf[1] = (sal_Unicode) ((c & 0x3FF) | 0xDC00);
len = 2;
}
rtl_uStringbuffer_insert(pThis, capacity, offset, buf, len);
}
void SAL_CALL rtl_uStringbuffer_insert_ascii( /*inout*/rtl_uString ** This,
/*inout*/sal_Int32 * capacity,
sal_Int32 offset,
const sal_Char * str,
sal_Int32 len)
{
sal_Int32 nOldLen;
sal_Unicode * pBuf;
sal_Int32 n;
if( len != 0 )
{
if (*capacity < (*This)->length + len)
rtl_uStringbuffer_ensureCapacity( This, capacity, (*This)->length + len );
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_Unicode) );
/* insert the new characters */
for( n = 0; n < len; n++ )
{
/* Check ASCII range */
OSL_ENSURE( (*str & 0x80) == 0, "Found ASCII char > 127");
pBuf[offset + n] = (sal_Unicode)*(str++);
}
(*This)->length = nOldLen + len;
pBuf[ nOldLen + len ] = 0;
}
}
/*************************************************************************
* rtl_uStringbuffer_remove
*/
void SAL_CALL rtl_uStringbuffer_remove( rtl_uString ** This,
sal_Int32 start,
sal_Int32 len )
{
sal_Int32 nTailLen;
sal_Unicode * 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_Unicode));
}
(*This)->length-=len;
pBuf[ (*This)->length ] = 0;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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