diff options
Diffstat (limited to 'sal/rtl/source/ustrbuf.cxx')
| -rw-r--r-- | sal/rtl/source/ustrbuf.cxx | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/sal/rtl/source/ustrbuf.cxx b/sal/rtl/source/ustrbuf.cxx new file mode 100644 index 000000000000..82b2fcb43d1b --- /dev/null +++ b/sal/rtl/source/ustrbuf.cxx @@ -0,0 +1,240 @@ +/* -*- 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 <osl/interlck.h> + +#ifndef _RTL_STRING_HXX_ +#include <rtl/ustrbuf.hxx> +#endif +#include <rtl/memory.h> + +/* +#include <rtl/alloc.h> +*/ + + + +/************************************************************************* + * rtl_uStringbuffer_newFromStr_WithLength + */ +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; + rtl_copyMemory( (*newStr)->buffer, value, count * sizeof(sal_Unicode)); + return; +} + +/************************************************************************* + * rtl_uStringbuffer_newFromStringBuffer + */ +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; + rtl_copyMemory( (*newStr)->buffer, oldStr->buffer, oldStr->length * sizeof(sal_Unicode)); + } + return newCapacity; +} + +/************************************************************************* + * rtl_uStringbuffer_ensureCapacity + */ +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; + + rtl_copyMemory( (*This)->buffer, pTmp->buffer, pTmp->length * sizeof(sal_Unicode) ); + rtl_uString_release( pTmp ); + } +} + +/************************************************************************* + * rtl_uStringbuffer_insert + */ +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 ) + rtl_moveMemory( 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 ) + rtl_copyMemory( 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); +} + +/************************************************************************* + * rtl_uStringbuffer_insert_ascii + */ +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 ) + rtl_moveMemory( 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 */ + rtl_moveMemory(pBuf + start, pBuf + start + len, nTailLen * sizeof(sal_Unicode)); + } + + (*This)->length-=len; + pBuf[ (*This)->length ] = 0; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |