/* -*- 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 #include #include /************************************************************************* * rtl_stringbuffer_newFromStr_WithLength */ void SAL_CALL rtl_stringbuffer_newFromStr_WithLength( rtl_String ** newStr, const sal_Char * value, sal_Int32 count ) { assert(newStr); assert(count >= 0); if (!value) { rtl_string_new_WithLength( newStr, 16 ); return; } rtl_string_new_WithLength( newStr, count + 16 ); (*newStr)->length = count; memcpy( (*newStr)->buffer, value, count ); } /************************************************************************* * rtl_stringbuffer_newFromStringBuffer */ sal_Int32 SAL_CALL rtl_stringbuffer_newFromStringBuffer( rtl_String ** newStr, sal_Int32 capacity, rtl_String * oldStr ) { assert(newStr); assert(oldStr); assert(capacity >= 0); 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) { assert(This); // assert(capacity && *capacity >= 0); // assert(minimumCapacity >= 0); if (minimumCapacity > *capacity) { rtl_String * pTmp = *This; rtl_String * pNew = nullptr; *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 ) { assert(This); assert(capacity && *capacity >= 0); assert(offset >= 0 && offset <= (**This).length); assert(len >= 0); 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 ); 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 */ if( str != nullptr ) { if( len == 1 ) /* optimized for 1 character */ pBuf[offset] = *str; else 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 ) { assert(This); assert(start >= 0 && start <= (**This).length); assert(len >= 0); 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: */ /collabora/lov-6.4'>distro/collabora/lov-6.4 LibreOffice 核心代码仓库文档基金会
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