diff options
Diffstat (limited to 'sal/rtl/source/strbuf.c')
-rw-r--r-- | sal/rtl/source/strbuf.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/sal/rtl/source/strbuf.c b/sal/rtl/source/strbuf.c new file mode 100644 index 000000000000..09dd83f8b32f --- /dev/null +++ b/sal/rtl/source/strbuf.c @@ -0,0 +1,147 @@ +/************************************************************************* + * + * 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/strbuf.hxx> +#endif +#include <rtl/memory.h> + +/* +#include <rtl/alloc.h> +*/ + + + +/************************************************************************* + * 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; + rtl_copyMemory( (*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; + rtl_copyMemory( (*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; + + rtl_copyMemory( (*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 ) + rtl_moveMemory( 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 ) + rtl_copyMemory( pBuf + offset, str, len * sizeof(sal_Char) ); + (*This)->length = nOldLen + len; + pBuf[ nOldLen + len ] = 0; + } +} + |