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-rw-r--r--sal/rtl/ustrbuf.cxx268
1 files changed, 268 insertions, 0 deletions
diff --git a/sal/rtl/ustrbuf.cxx b/sal/rtl/ustrbuf.cxx
new file mode 100644
index 000000000..53e178e58
--- /dev/null
+++ b/sal/rtl/ustrbuf.cxx
@@ -0,0 +1,268 @@
+/* -*- 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 <osl/diagnose.h>
+#include <rtl/character.hxx>
+#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)
+{
+ assert(newStr);
+ assert(count >= 0);
+ if (!value)
+ {
+ rtl_uString_new_WithLength( newStr, 16 );
+ return;
+ }
+
+ // use raw alloc to avoid overwriting the buffer twice
+ if ( *newStr)
+ rtl_uString_release( *newStr );
+ *newStr = rtl_uString_ImplAlloc( count + 16 );
+ (*newStr)->length = count;
+ memcpy( (*newStr)->buffer, value, count * sizeof(sal_Unicode) );
+ memset( (*newStr)->buffer + count, 0, 16 * sizeof(sal_Unicode) );
+ RTL_LOG_STRING_NEW( *newStr );
+}
+
+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 )
+{
+ assert(ppThis);
+ assert(nCapacity);
+ // avoid an un-necessary atomic ref/unref pair
+ rtl_uString *pStr = *ppThis;
+ *ppThis = nullptr;
+
+ 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 )
+{
+ assert(newStr);
+ assert(capacity >= 0);
+ assert(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)
+{
+ assert(This);
+ assert(capacity && *capacity >= 0);
+ assert(minimumCapacity >= 0);
+ if (minimumCapacity <= *capacity)
+ return;
+
+ rtl_uString * pTmp = *This;
+ rtl_uString * pNew = nullptr;
+ auto nLength = (*This)->length;
+ *capacity = (nLength + 1) * 2;
+ if (minimumCapacity > *capacity)
+ /* still lower, set to the minimum capacity */
+ *capacity = minimumCapacity;
+
+ // use raw alloc to avoid overwriting the buffer twice
+ pNew = rtl_uString_ImplAlloc( *capacity );
+ pNew->length = nLength;
+ *This = pNew;
+
+ memcpy( (*This)->buffer, pTmp->buffer, nLength * sizeof(sal_Unicode) );
+ memset( (*This)->buffer + nLength, 0, (*capacity - nLength) * 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)
+{
+ assert(This);
+ assert(capacity && *capacity >= 0);
+ assert(offset >= 0 && offset <= (**This).length);
+ assert(len >= 0);
+ sal_Int32 nOldLen;
+ sal_Unicode * pBuf;
+ sal_Int32 n;
+ if( len == 0 )
+ return;
+
+ 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 */
+ if( str != nullptr )
+ {
+ if( len == 1 )
+ /* optimized for 1 character */
+ pBuf[offset] = *str;
+ else
+ 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(rtl::isUnicodeScalarValue(c));
+ if (c <= 0xFFFF) {
+ buf[0] = static_cast<sal_Unicode>(c);
+ len = 1;
+ } else {
+ c -= 0x10000;
+ buf[0] = static_cast<sal_Unicode>((c >> 10) | 0xD800);
+ buf[1] = static_cast<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 char * str,
+ sal_Int32 len)
+{
+ assert(This);
+ assert(capacity && *capacity >= 0);
+ assert(offset >= 0 && offset <= (**This).length);
+ assert(len == 0 || str != nullptr);
+ assert(len >= 0);
+ sal_Int32 nOldLen;
+ sal_Unicode * pBuf;
+ sal_Int32 n;
+ if( len == 0 )
+ return;
+
+ 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] = static_cast<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 )
+{
+ assert(This);
+ assert(start >= 0 && start <= (**This).length);
+ assert(len >= 0);
+ 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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