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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 .
+ */
+
+/*
+ * This file is part of LibreOffice published API.
+ */
+
+#ifndef INCLUDED_RTL_USTRBUF_HXX
+#define INCLUDED_RTL_USTRBUF_HXX
+
+#include "sal/config.h"
+
+#include <cassert>
+#include <cstring>
+#include <limits>
+#include <new>
+
+#if defined LIBO_INTERNAL_ONLY
+#include <string_view>
+#include <type_traits>
+#endif
+
+#include "rtl/ustrbuf.h"
+#include "rtl/ustring.hxx"
+#include "rtl/stringutils.hxx"
+#include "sal/types.h"
+
+#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING"
+#include "rtl/stringconcat.hxx"
+#endif
+
+#ifdef RTL_STRING_UNITTEST
+extern bool rtl_string_unittest_invalid_conversion;
+#endif
+
+// The unittest uses slightly different code to help check that the proper
+// calls are made. The class is put into a different namespace to make
+// sure the compiler generates a different (if generating also non-inline)
+// copy of the function and does not merge them together. The class
+// is "brought" into the proper rtl namespace by a typedef below.
+#ifdef RTL_STRING_UNITTEST
+#define rtl rtlunittest
+#endif
+
+namespace rtl
+{
+
+#ifdef RTL_STRING_UNITTEST
+#undef rtl
+#endif
+
+/** A string buffer implements a mutable sequence of characters.
+ */
+class SAL_WARN_UNUSED OUStringBuffer
+{
+friend class OUString;
+public:
+ /**
+ Constructs a string buffer with no characters in it and an
+ initial capacity of 16 characters.
+ */
+ OUStringBuffer()
+ : pData(NULL)
+ , nCapacity( 16 )
+ {
+ rtl_uString_new_WithLength( &pData, nCapacity );
+ }
+
+ /**
+ Allocates a new string buffer that contains the same sequence of
+ characters as the string buffer argument.
+
+ @param value a <code>OUStringBuffer</code>.
+ */
+ OUStringBuffer( const OUStringBuffer & value )
+ : pData(NULL)
+ , nCapacity( value.nCapacity )
+ {
+ rtl_uStringbuffer_newFromStringBuffer( &pData, value.nCapacity, value.pData );
+ }
+
+ /**
+ Constructs a string buffer with no characters in it and an
+ initial capacity specified by the <code>length</code> argument.
+
+ @param length the initial capacity.
+ */
+ explicit OUStringBuffer(sal_Int32 length)
+ : pData(NULL)
+ , nCapacity( length )
+ {
+ rtl_uString_new_WithLength( &pData, length );
+ }
+#if defined LIBO_INTERNAL_ONLY
+ template<typename T>
+ explicit OUStringBuffer(T length, std::enable_if_t<std::is_integral_v<T>, int> = 0)
+ : OUStringBuffer(static_cast<sal_Int32>(length))
+ {
+ assert(
+ length >= 0
+ && static_cast<std::make_unsigned_t<T>>(length)
+ <= static_cast<std::make_unsigned_t<sal_Int32>>(
+ std::numeric_limits<sal_Int32>::max()));
+ }
+ // avoid (obvious) bugs
+ explicit OUStringBuffer(bool) = delete;
+ explicit OUStringBuffer(char) = delete;
+ explicit OUStringBuffer(wchar_t) = delete;
+#if defined __cpp_char8_t
+ explicit OUStringBuffer(char8_t) = delete;
+#endif
+ explicit OUStringBuffer(char16_t) = delete;
+ explicit OUStringBuffer(char32_t) = delete;
+#endif
+
+ /**
+ Constructs a string buffer so that it represents the same
+ sequence of characters as the string argument.
+
+ The initial
+ capacity of the string buffer is <code>16</code> plus the length
+ of the string argument.
+
+ @param value the initial contents of the buffer.
+ */
+#if defined LIBO_INTERNAL_ONLY
+ OUStringBuffer(std::u16string_view sv)
+ : pData(nullptr)
+ , nCapacity( sv.length() + 16 )
+ {
+ if (sv.size() > sal_uInt32(std::numeric_limits<sal_Int32>::max())) {
+ throw std::bad_alloc();
+ }
+ rtl_uStringbuffer_newFromStr_WithLength( &pData, sv.data(), sv.length() );
+ }
+#else
+ OUStringBuffer(const OUString& value)
+ : pData(NULL)
+ , nCapacity( value.getLength() + 16 )
+ {
+ rtl_uStringbuffer_newFromStr_WithLength( &pData, value.getStr(), value.getLength() );
+ }
+#endif
+
+ template< typename T >
+ OUStringBuffer( T& literal, typename libreoffice_internal::ConstCharArrayDetector< T, libreoffice_internal::Dummy >::Type = libreoffice_internal::Dummy() )
+ : pData(NULL)
+ , nCapacity( libreoffice_internal::ConstCharArrayDetector<T>::length + 16 )
+ {
+ assert(
+ libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal));
+ rtl_uString_newFromLiteral(
+ &pData,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length, 16);
+#ifdef RTL_STRING_UNITTEST
+ rtl_string_unittest_const_literal = true;
+#endif
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T>
+ OUStringBuffer(
+ T & literal,
+ typename libreoffice_internal::ConstCharArrayDetector<
+ T, libreoffice_internal::Dummy>::TypeUtf16
+ = libreoffice_internal::Dummy()):
+ pData(nullptr),
+ nCapacity(libreoffice_internal::ConstCharArrayDetector<T>::length + 16)
+ {
+ rtl_uStringbuffer_newFromStr_WithLength(
+ &pData,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ }
+#endif
+
+#if defined LIBO_INTERNAL_ONLY && defined RTL_STRING_UNITTEST
+ /// @cond INTERNAL
+ /**
+ * Only used by unittests to detect incorrect conversions.
+ * @internal
+ */
+ template< typename T >
+ OUStringBuffer( T&, typename libreoffice_internal::ExceptConstCharArrayDetector< T >::Type = libreoffice_internal::Dummy() )
+ {
+ pData = NULL;
+ nCapacity = 10;
+ rtl_uString_newFromLiteral( &pData, "!!br0ken!!", 10, 0 ); // set to garbage
+ rtl_string_unittest_invalid_conversion = true;
+ }
+ /**
+ * Only used by unittests to detect incorrect conversions.
+ * @internal
+ */
+ template< typename T >
+ OUStringBuffer( const T&, typename libreoffice_internal::ExceptCharArrayDetector< T >::Type = libreoffice_internal::Dummy() )
+ {
+ pData = NULL;
+ nCapacity = 10;
+ rtl_uString_newFromLiteral( &pData, "!!br0ken!!", 10, 0 ); // set to garbage
+ rtl_string_unittest_invalid_conversion = true;
+ }
+ /// @endcond
+#endif
+
+#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING"
+ /**
+ @overload
+ @internal
+ */
+ template< typename T1, typename T2 >
+ OUStringBuffer( OUStringConcat< T1, T2 >&& c )
+ {
+ const sal_Int32 l = c.length();
+ nCapacity = l + 16;
+ pData = rtl_uString_alloc( nCapacity );
+ sal_Unicode* end = c.addData( pData->buffer );
+ *end = '\0';
+ pData->length = l;
+ }
+
+ /**
+ @overload
+ @internal
+ */
+ template< typename T >
+ OUStringBuffer( OUStringNumber< T >&& n )
+ : pData(NULL)
+ , nCapacity( n.length + 16 )
+ {
+ rtl_uStringbuffer_newFromStr_WithLength( &pData, n.buf, n.length );
+ }
+#endif
+
+#if defined LIBO_INTERNAL_ONLY
+ operator std::u16string_view() const { return {getStr(), sal_uInt32(getLength())}; }
+#endif
+
+ /** Assign to this a copy of value.
+ */
+ OUStringBuffer& operator = ( const OUStringBuffer& value )
+ {
+ if (this != &value)
+ {
+ rtl_uStringbuffer_newFromStringBuffer(&pData,
+ value.nCapacity,
+ value.pData);
+ nCapacity = value.nCapacity;
+ }
+ return *this;
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /** Move assignment
+ * @since LibreOffice 7.3
+ */
+ OUStringBuffer& operator = ( OUStringBuffer&& value ) noexcept
+ {
+ rtl_uString_release( pData );
+ pData = value.pData;
+ nCapacity = value.nCapacity;
+ value.pData = nullptr;
+ value.nCapacity = 0;
+ rtl_uString_new( &value.pData );
+ return *this;
+ }
+#endif
+
+ /** Assign from a string.
+
+ @since LibreOffice 5.3
+ */
+#if defined LIBO_INTERNAL_ONLY
+ OUStringBuffer & operator =(std::u16string_view string) {
+ sal_Int32 n = string.length();
+ if (n >= nCapacity) {
+ ensureCapacity(n + 16); //TODO: check for overflow
+ }
+ std::memcpy(
+ pData->buffer, string.data(),
+ n * sizeof (sal_Unicode));
+ pData->buffer[n] = '\0';
+ pData->length = n;
+ return *this;
+ }
+#else
+ OUStringBuffer & operator =(OUString const & string) {
+ sal_Int32 n = string.getLength();
+ if (n >= nCapacity) {
+ ensureCapacity(n + 16); //TODO: check for overflow
+ }
+ std::memcpy(
+ pData->buffer, string.pData->buffer,
+ (n + 1) * sizeof (sal_Unicode));
+ pData->length = n;
+ return *this;
+ }
+#endif
+
+ /** Assign from a string literal.
+
+ @since LibreOffice 5.3
+ */
+ template<typename T>
+ typename
+ libreoffice_internal::ConstCharArrayDetector<T, OUStringBuffer &>::Type
+ operator =(T & literal) {
+ assert(
+ libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal));
+ sal_Int32 const n
+ = libreoffice_internal::ConstCharArrayDetector<T>::length;
+ if (n >= nCapacity) {
+ ensureCapacity(n + 16); //TODO: check for overflow
+ }
+ char const * from
+ = libreoffice_internal::ConstCharArrayDetector<T>::toPointer(
+ literal);
+ sal_Unicode * to = pData->buffer;
+ for (sal_Int32 i = 0; i <= n; ++i) {
+ to[i] = from[i];
+ }
+ pData->length = n;
+ return *this;
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T>
+ typename libreoffice_internal::ConstCharArrayDetector<
+ T, OUStringBuffer &>::TypeUtf16
+ operator =(T & literal) {
+ sal_Int32 const n
+ = libreoffice_internal::ConstCharArrayDetector<T>::length;
+ if (n >= nCapacity) {
+ ensureCapacity(n + 16); //TODO: check for overflow
+ }
+ // For OUStringChar, which is covered by this template's ConstCharArrayDetector TypeUtf16
+ // check, toPointer does not return a NUL-terminated string, so we can't just memcpy n+1
+ // elements but rather need to add the terminating NUL manually:
+ std::memcpy(
+ pData->buffer,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ n * sizeof (sal_Unicode));
+ pData->buffer[n] = '\0';
+ pData->length = n;
+ return *this;
+ }
+#endif
+
+#if defined LIBO_INTERNAL_ONLY
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T1, typename T2>
+ OUStringBuffer & operator =(OUStringConcat<T1, T2> && concat) {
+ sal_Int32 const n = concat.length();
+ if (n >= nCapacity) {
+ ensureCapacity(n + 16); //TODO: check for overflow
+ }
+ *concat.addData(pData->buffer) = 0;
+ pData->length = n;
+ return *this;
+ }
+
+ /** @overload @internal */
+ template<typename T>
+ OUStringBuffer & operator =(OUStringNumber<T> && n)
+ {
+ *this = OUStringBuffer( std::move( n ) );
+ return *this;
+ }
+#endif
+
+ /**
+ Release the string data.
+ */
+ ~OUStringBuffer()
+ {
+ rtl_uString_release( pData );
+ }
+
+ /**
+ Fill the string data in the new string and clear the buffer.
+
+ This method is more efficient than the constructor of the string. It does
+ not copy the buffer.
+
+ @return the string previously contained in the buffer.
+ */
+ SAL_WARN_UNUSED_RESULT OUString makeStringAndClear()
+ {
+ return OUString(
+ rtl_uStringBuffer_makeStringAndClear( &pData, &nCapacity ),
+ SAL_NO_ACQUIRE );
+ }
+
+ /**
+ Returns the length (character count) of this string buffer.
+
+ @return the number of characters in this string buffer.
+ */
+ sal_Int32 getLength() const
+ {
+ return pData->length;
+ }
+
+ /**
+ Checks if a string buffer is empty.
+
+ @return true if the string buffer is empty;
+ false, otherwise.
+
+ @since LibreOffice 4.1
+ */
+ bool isEmpty() const
+ {
+ return pData->length == 0;
+ }
+
+ /**
+ Returns the current capacity of the String buffer.
+
+ The capacity
+ is the amount of storage available for newly inserted
+ characters. The real buffer size is 2 bytes longer, because
+ all strings are 0 terminated.
+
+ @return the current capacity of this string buffer.
+ */
+ sal_Int32 getCapacity() const
+ {
+ return nCapacity;
+ }
+
+ /**
+ Ensures that the capacity of the buffer is at least equal to the
+ specified minimum.
+
+ The new capacity will be at least as large as the maximum of the current
+ length (so that no contents of the buffer is destroyed) and the given
+ minimumCapacity. If the given minimumCapacity is negative, nothing is
+ changed.
+
+ @param minimumCapacity the minimum desired capacity.
+ */
+ void ensureCapacity(sal_Int32 minimumCapacity)
+ {
+ rtl_uStringbuffer_ensureCapacity( &pData, &nCapacity, minimumCapacity );
+ }
+
+ /**
+ Sets the length of this String buffer.
+
+ If the <code>newLength</code> argument is less than the current
+ length of the string buffer, the string buffer is truncated to
+ contain exactly the number of characters given by the
+ <code>newLength</code> argument.
+ <p>
+ If the <code>newLength</code> argument is greater than or equal
+ to the current length, sufficient null characters
+ (<code>'&#92;u0000'</code>) are appended to the string buffer so that
+ length becomes the <code>newLength</code> argument.
+ <p>
+ The <code>newLength</code> argument must be greater than or equal
+ to <code>0</code>.
+
+ @param newLength the new length of the buffer.
+ */
+ void setLength(sal_Int32 newLength)
+ {
+ assert(newLength >= 0);
+ // Avoid modifications if pData points to const empty string:
+ if( newLength != pData->length )
+ {
+ if( newLength > nCapacity )
+ rtl_uStringbuffer_ensureCapacity(&pData, &nCapacity, newLength);
+ else
+ pData->buffer[newLength] = 0;
+ pData->length = newLength;
+ }
+ }
+
+ /**
+ Returns the character at a specific index in this string buffer.
+
+ The first character of a string buffer is at index
+ <code>0</code>, the next at index <code>1</code>, and so on, for
+ array indexing.
+ <p>
+ The index argument must be greater than or equal to
+ <code>0</code>, and less than the length of this string buffer.
+
+ @param index the index of the desired character.
+ @return the character at the specified index of this string buffer.
+ */
+ SAL_DEPRECATED("use rtl::OUStringBuffer::operator [] instead")
+ sal_Unicode charAt( sal_Int32 index ) const
+ {
+ assert(index >= 0 && index < pData->length);
+ return pData->buffer[ index ];
+ }
+
+ /**
+ The character at the specified index of this string buffer is set
+ to <code>ch</code>.
+
+ The index argument must be greater than or equal to
+ <code>0</code>, and less than the length of this string buffer.
+
+ @param index the index of the character to modify.
+ @param ch the new character.
+ */
+ SAL_DEPRECATED("use rtl::OUStringBuffer::operator [] instead")
+ OUStringBuffer & setCharAt(sal_Int32 index, sal_Unicode ch)
+ {
+ assert(index >= 0 && index < pData->length);
+ pData->buffer[ index ] = ch;
+ return *this;
+ }
+
+ /**
+ Return a null terminated unicode character array.
+ */
+ const sal_Unicode* getStr() const SAL_RETURNS_NONNULL { return pData->buffer; }
+
+ /**
+ Access to individual characters.
+
+ @param index must be non-negative and less than length.
+
+ @return a reference to the character at the given index.
+
+ @since LibreOffice 3.5
+ */
+ sal_Unicode & operator [](sal_Int32 index)
+ {
+ assert(index >= 0 && index < pData->length);
+ return pData->buffer[index];
+ }
+
+ /**
+ Access to individual characters.
+
+ @param index must be non-negative and less than length.
+
+ @return a reference to the character at the given index.
+
+ @since LibreOffice 4.2
+ */
+ const sal_Unicode & operator [](sal_Int32 index) const
+ {
+ assert(index >= 0 && index < pData->length);
+ return pData->buffer[index];
+ }
+
+ /**
+ Return an OUString instance reflecting the current content
+ of this OUStringBuffer.
+ */
+ OUString toString() const
+ {
+ return OUString(pData->buffer, pData->length);
+ }
+
+ /**
+ Appends the string to this string buffer.
+
+ The characters of the <code>OUString</code> argument are appended, in
+ order, to the contents of this string buffer, increasing the
+ length of this string buffer by the length of the argument.
+
+ @param str a string.
+ @return this string buffer.
+ */
+#if !defined LIBO_INTERNAL_ONLY
+ OUStringBuffer & append(const OUString &str)
+ {
+ return append( str.getStr(), str.getLength() );
+ }
+#else
+ OUStringBuffer & append(std::u16string_view sv) {
+ if (sv.size() > sal_uInt32(std::numeric_limits<sal_Int32>::max())) {
+ throw std::bad_alloc();
+ }
+ return append(sv.data(), sv.size());
+ }
+#endif
+
+#if !defined LIBO_INTERNAL_ONLY
+ /**
+ Appends the content of a stringbuffer to this string buffer.
+
+ The characters of the <code>OUStringBuffer</code> argument are appended, in
+ order, to the contents of this string buffer, increasing the
+ length of this string buffer by the length of the argument.
+
+ @param str a string.
+ @return this string buffer.
+
+ @since LibreOffice 4.0
+ */
+ OUStringBuffer & append(const OUStringBuffer &str)
+ {
+ if(!str.isEmpty())
+ {
+ append( str.getStr(), str.getLength() );
+ }
+ return *this;
+ }
+#endif
+
+ /**
+ Appends the string representation of the <code>char</code> array
+ argument to this string buffer.
+
+ The characters of the array argument are appended, in order, to
+ the contents of this string buffer. The length of this string
+ buffer increases by the length of the argument.
+
+ @param str the characters to be appended.
+ @return this string buffer.
+ */
+#if defined LIBO_INTERNAL_ONLY
+ template<typename T>
+ typename libreoffice_internal::CharPtrDetector<T, OUStringBuffer &>::TypeUtf16
+ append(T const & str)
+#else
+ OUStringBuffer & append( const sal_Unicode * str )
+#endif
+ {
+ return append( str, rtl_ustr_getLength( str ) );
+ }
+
+ /**
+ Appends the string representation of the <code>char</code> array
+ argument to this string buffer.
+
+ Characters of the character array <code>str</code> are appended,
+ in order, to the contents of this string buffer. The length of this
+ string buffer increases by the value of <code>len</code>.
+
+ @param str the characters to be appended; must be non-null, and must
+ point to at least len characters
+ @param len the number of characters to append; must be non-negative
+ @return this string buffer.
+ */
+ OUStringBuffer & append( const sal_Unicode * str, sal_Int32 len)
+ {
+ assert( len == 0 || str != NULL ); // cannot assert that in rtl_uStringbuffer_insert
+ rtl_uStringbuffer_insert( &pData, &nCapacity, getLength(), str, len );
+ return *this;
+ }
+
+ /**
+ @overload
+ This function accepts an ASCII string literal as its argument.
+ @since LibreOffice 3.6
+ */
+ template< typename T >
+ typename libreoffice_internal::ConstCharArrayDetector< T, OUStringBuffer& >::Type append( T& literal )
+ {
+ assert(
+ libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal));
+ return appendAscii(
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ template<typename T>
+ typename libreoffice_internal::NonConstCharArrayDetector<T, OUStringBuffer &>::TypeUtf16
+ append(T & value) { return append(static_cast<sal_Unicode *>(value)); }
+
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T>
+ typename libreoffice_internal::ConstCharArrayDetector<
+ T, OUStringBuffer &>::TypeUtf16
+ append(T & literal) {
+ return append(
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ }
+#endif
+
+#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING"
+ /**
+ @overload
+ @internal
+ */
+ template< typename T1, typename T2 >
+ OUStringBuffer& append( OUStringConcat< T1, T2 >&& c )
+ {
+ sal_Int32 l = c.length();
+ if( l == 0 )
+ return *this;
+ l += pData->length;
+ rtl_uStringbuffer_ensureCapacity( &pData, &nCapacity, l );
+ sal_Unicode* end = c.addData( pData->buffer + pData->length );
+ *end = '\0';
+ pData->length = l;
+ return *this;
+ }
+
+ /**
+ @overload
+ @internal
+ */
+ template< typename T >
+ OUStringBuffer& append( OUStringNumber< T >&& c )
+ {
+ return append( c.buf, c.length );
+ }
+#endif
+
+ /**
+ Appends a 8-Bit ASCII character string to this string buffer.
+
+ Since this method is optimized for performance. the ASCII
+ character values are not converted in any way. The caller
+ has to make sure that all ASCII characters are in the
+ allowed range between 0 and 127. The ASCII string must be
+ NULL-terminated.
+ <p>
+ The characters of the array argument are appended, in order, to
+ the contents of this string buffer. The length of this string
+ buffer increases by the length of the argument.
+
+ @param str the 8-Bit ASCII characters to be appended.
+ @return this string buffer.
+ */
+ OUStringBuffer & appendAscii( const char * str )
+ {
+ return appendAscii( str, rtl_str_getLength( str ) );
+ }
+
+ /**
+ Appends a 8-Bit ASCII character string to this string buffer.
+
+ Since this method is optimized for performance. the ASCII
+ character values are not converted in any way. The caller
+ has to make sure that all ASCII characters are in the
+ allowed range between 0 and 127. The ASCII string must be
+ NULL-terminated.
+ <p>
+ Characters of the character array <code>str</code> are appended,
+ in order, to the contents of this string buffer. The length of this
+ string buffer increases by the value of <code>len</code>.
+
+ @param str the 8-Bit ASCII characters to be appended; must be non-null,
+ and must point to at least len characters
+ @param len the number of characters to append; must be non-negative
+ @return this string buffer.
+ */
+ OUStringBuffer & appendAscii( const char * str, sal_Int32 len)
+ {
+ rtl_uStringbuffer_insert_ascii( &pData, &nCapacity, getLength(), str, len );
+ return *this;
+ }
+
+ /**
+ Appends the string representation of the <code>bool</code>
+ argument to the string buffer.
+
+ The argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then appended to this string buffer.
+
+ @param b a <code>bool</code>.
+ @return this string buffer.
+
+ @since LibreOffice 4.1
+ */
+ OUStringBuffer & append(bool b)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFBOOLEAN];
+ return append( sz, rtl_ustr_valueOfBoolean( sz, b ) );
+ }
+
+ /// @cond INTERNAL
+ // Pointer can be automatically converted to bool, which is unwanted here.
+ // Explicitly delete all pointer append() overloads to prevent this
+ // (except for char* and sal_Unicode* overloads, which are handled elsewhere).
+ template< typename T >
+ typename libreoffice_internal::Enable< void,
+ !libreoffice_internal::CharPtrDetector< T* >::ok && !libreoffice_internal::SalUnicodePtrDetector< T* >::ok >::Type
+ append( T* ) SAL_DELETED_FUNCTION;
+ /// @endcond
+
+ // This overload is needed because OUString has a ctor from rtl_uString*, but
+ // the bool overload above would be preferred to the conversion.
+ /**
+ @internal
+ */
+ OUStringBuffer & append(rtl_uString* str)
+ {
+ return append( OUString( str ));
+ }
+
+ /**
+ Appends the string representation of the <code>sal_Bool</code>
+ argument to the string buffer.
+
+ The argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then appended to this string buffer.
+
+ @param b a <code>sal_Bool</code>.
+ @return this string buffer.
+ */
+ OUStringBuffer & append(sal_Bool b)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFBOOLEAN];
+ return append( sz, rtl_ustr_valueOfBoolean( sz, b ) );
+ }
+
+ /**
+ Appends the string representation of the ASCII <code>char</code>
+ argument to this string buffer.
+
+ The argument is appended to the contents of this string buffer.
+ The length of this string buffer increases by <code>1</code>.
+
+ @param c an ASCII <code>char</code>.
+ @return this string buffer.
+
+ @since LibreOffice 3.5
+ */
+ OUStringBuffer & append(char c)
+ {
+ assert(static_cast< unsigned char >(c) <= 0x7F);
+ return append(sal_Unicode(c));
+ }
+
+ /**
+ Appends the string representation of the <code>char</code>
+ argument to this string buffer.
+
+ The argument is appended to the contents of this string buffer.
+ The length of this string buffer increases by <code>1</code>.
+
+ @param c a <code>char</code>.
+ @return this string buffer.
+ */
+ OUStringBuffer & append(sal_Unicode c)
+ {
+ return append( &c, 1 );
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ void append(sal_uInt16) = delete;
+#endif
+
+ /**
+ Appends the string representation of the <code>sal_Int32</code>
+ argument to this string buffer.
+
+ The argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then appended to this string buffer.
+
+ @param i an <code>sal_Int32</code>.
+ @param radix the radix
+ @return this string buffer.
+ */
+ OUStringBuffer & append(sal_Int32 i, sal_Int16 radix = 10 )
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFINT32];
+ return append( sz, rtl_ustr_valueOfInt32( sz, i, radix ) );
+ }
+
+ /**
+ Appends the string representation of the <code>long</code>
+ argument to this string buffer.
+
+ The argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then appended to this string buffer.
+
+ @param l a <code>long</code>.
+ @param radix the radix
+ @return this string buffer.
+ */
+ OUStringBuffer & append(sal_Int64 l, sal_Int16 radix = 10 )
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFINT64];
+ return append( sz, rtl_ustr_valueOfInt64( sz, l, radix ) );
+ }
+
+ /**
+ Appends the string representation of the <code>float</code>
+ argument to this string buffer.
+
+ The argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then appended to this string buffer.
+
+ @param f a <code>float</code>.
+ @return this string buffer.
+ */
+ OUStringBuffer & append(float f)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFFLOAT];
+ return append( sz, rtl_ustr_valueOfFloat( sz, f ) );
+ }
+
+ /**
+ Appends the string representation of the <code>double</code>
+ argument to this string buffer.
+
+ The argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then appended to this string buffer.
+
+ @param d a <code>double</code>.
+ @return this string buffer.
+ */
+ OUStringBuffer & append(double d)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFDOUBLE];
+ return append( sz, rtl_ustr_valueOfDouble( sz, d ) );
+ }
+
+ /**
+ Appends a single UTF-32 character to this string buffer.
+
+ <p>The single UTF-32 character will be represented within the string
+ buffer as either one or two UTF-16 code units.</p>
+
+ @param c a well-formed UTF-32 code unit (that is, a value in the range
+ <code>0</code>&ndash;<code>0x10FFFF</code>, but excluding
+ <code>0xD800</code>&ndash;<code>0xDFFF</code>)
+
+ @return
+ this string buffer
+ */
+ OUStringBuffer & appendUtf32(sal_uInt32 c) {
+ return insertUtf32(getLength(), c);
+ }
+
+ /**
+ Unsafe way to make space for a fixed amount of characters to be appended
+ into this OUStringBuffer.
+
+ A call to this function must immediately be followed by code that
+ completely fills the uninitialized block pointed to by the return value.
+
+ @param length the length of the uninitialized block of sal_Unicode
+ entities; must be non-negative
+
+ @return a pointer to the start of the uninitialized block; only valid
+ until this OUStringBuffer's capacity changes
+
+ @since LibreOffice 4.4
+ */
+ sal_Unicode * appendUninitialized(sal_Int32 length) SAL_RETURNS_NONNULL {
+ sal_Int32 n = getLength();
+ rtl_uStringbuffer_insert(&pData, &nCapacity, n, NULL, length);
+ return pData->buffer + n;
+ }
+
+ /**
+ Inserts the string into this string buffer.
+
+ The characters of the <code>String</code> argument are inserted, in
+ order, into this string buffer at the indicated offset. The length
+ of this string buffer is increased by the length of the argument.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param str a string.
+ @return this string buffer.
+ */
+#if defined LIBO_INTERNAL_ONLY
+ OUStringBuffer & insert(sal_Int32 offset, std::u16string_view str)
+ {
+ return insert( offset, str.data(), str.length() );
+ }
+#else
+ OUStringBuffer & insert(sal_Int32 offset, const OUString & str)
+ {
+ return insert( offset, str.getStr(), str.getLength() );
+ }
+#endif
+
+ /**
+ Inserts the string representation of the <code>char</code> array
+ argument into this string buffer.
+
+ The characters of the array argument are inserted into the
+ contents of this string buffer at the position indicated by
+ <code>offset</code>. The length of this string buffer increases by
+ the length of the argument.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param str a character array.
+ @return this string buffer.
+ */
+ OUStringBuffer & insert( sal_Int32 offset, const sal_Unicode * str )
+ {
+ return insert( offset, str, rtl_ustr_getLength( str ) );
+ }
+
+ /**
+ Inserts the string representation of the <code>char</code> array
+ argument into this string buffer.
+
+ The characters of the array argument are inserted into the
+ contents of this string buffer at the position indicated by
+ <code>offset</code>. The length of this string buffer increases by
+ the length of the argument.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param str a character array.
+ @param len the number of characters to append.
+ @return this string buffer.
+ */
+ OUStringBuffer & insert( sal_Int32 offset, const sal_Unicode * str, sal_Int32 len)
+ {
+ assert( len == 0 || str != NULL ); // cannot assert that in rtl_uStringbuffer_insert
+ rtl_uStringbuffer_insert( &pData, &nCapacity, offset, str, len );
+ return *this;
+ }
+
+ /**
+ @overload
+ This function accepts an ASCII string literal as its argument.
+ @since LibreOffice 3.6
+ */
+ template< typename T >
+ typename libreoffice_internal::ConstCharArrayDetector< T, OUStringBuffer& >::Type insert( sal_Int32 offset, T& literal )
+ {
+ assert(
+ libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal));
+ rtl_uStringbuffer_insert_ascii(
+ &pData, &nCapacity, offset,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ return *this;
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T>
+ typename libreoffice_internal::ConstCharArrayDetector<
+ T, OUStringBuffer &>::TypeUtf16
+ insert(sal_Int32 offset, T & literal) {
+ return insert(
+ offset,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ }
+#endif
+
+ /**
+ Inserts the string representation of the <code>sal_Bool</code>
+ argument into this string buffer.
+
+ The second argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then inserted into this string buffer at the indicated
+ offset.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param b a <code>sal_Bool</code>.
+ @return this string buffer.
+ */
+ OUStringBuffer & insert(sal_Int32 offset, sal_Bool b)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFBOOLEAN];
+ return insert( offset, sz, rtl_ustr_valueOfBoolean( sz, b ) );
+ }
+
+ /**
+ Inserts the string representation of the <code>bool</code>
+ argument into this string buffer.
+
+ The second argument is converted to a string as if by the method
+ <code>OUString::boolean</code>, and the characters of that
+ string are then inserted into this string buffer at the indicated
+ offset.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param b a <code>bool</code>.
+ @return this string buffer.
+
+ @since LibreOffice 4.3
+ */
+ OUStringBuffer & insert(sal_Int32 offset, bool b)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFBOOLEAN];
+ return insert( offset, sz, rtl_ustr_valueOfBoolean( sz, b ) );
+ }
+
+ /**
+ Inserts the string representation of the <code>char</code>
+ argument into this string buffer.
+
+ The second argument is inserted into the contents of this string
+ buffer at the position indicated by <code>offset</code>. The length
+ of this string buffer increases by one.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param c a <code>char</code>.
+ @return this string buffer.
+
+ @since LibreOffice 3.6
+ */
+ OUStringBuffer & insert(sal_Int32 offset, char c)
+ {
+ sal_Unicode u = c;
+ return insert( offset, &u, 1 );
+ }
+
+ /**
+ Inserts the string representation of the <code>char</code>
+ argument into this string buffer.
+
+ The second argument is inserted into the contents of this string
+ buffer at the position indicated by <code>offset</code>. The length
+ of this string buffer increases by one.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param c a <code>char</code>.
+ @return this string buffer.
+ */
+ OUStringBuffer & insert(sal_Int32 offset, sal_Unicode c)
+ {
+ return insert( offset, &c, 1 );
+ }
+
+ /**
+ Inserts the string representation of the second <code>sal_Int32</code>
+ argument into this string buffer.
+
+ The second argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then inserted into this string buffer at the indicated
+ offset.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param i an <code>sal_Int32</code>.
+ @param radix the radix.
+ @return this string buffer.
+ @exception StringIndexOutOfBoundsException if the offset is invalid.
+ */
+ OUStringBuffer & insert(sal_Int32 offset, sal_Int32 i, sal_Int16 radix = 10 )
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFINT32];
+ return insert( offset, sz, rtl_ustr_valueOfInt32( sz, i, radix ) );
+ }
+
+ /**
+ Inserts the string representation of the <code>long</code>
+ argument into this string buffer.
+
+ The second argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then inserted into this string buffer at the indicated
+ offset.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param l a <code>long</code>.
+ @param radix the radix.
+ @return this string buffer.
+ @exception StringIndexOutOfBoundsException if the offset is invalid.
+ */
+ OUStringBuffer & insert(sal_Int32 offset, sal_Int64 l, sal_Int16 radix = 10 )
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFINT64];
+ return insert( offset, sz, rtl_ustr_valueOfInt64( sz, l, radix ) );
+ }
+
+ /**
+ Inserts the string representation of the <code>float</code>
+ argument into this string buffer.
+
+ The second argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then inserted into this string buffer at the indicated
+ offset.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param f a <code>float</code>.
+ @return this string buffer.
+ @exception StringIndexOutOfBoundsException if the offset is invalid.
+ */
+ OUStringBuffer insert(sal_Int32 offset, float f)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFFLOAT];
+ return insert( offset, sz, rtl_ustr_valueOfFloat( sz, f ) );
+ }
+
+ /**
+ Inserts the string representation of the <code>double</code>
+ argument into this string buffer.
+
+ The second argument is converted to a string as if by the method
+ <code>String.valueOf</code>, and the characters of that
+ string are then inserted into this string buffer at the indicated
+ offset.
+ <p>
+ The offset argument must be greater than or equal to
+ <code>0</code>, and less than or equal to the length of this
+ string buffer.
+
+ @param offset the offset.
+ @param d a <code>double</code>.
+ @return this string buffer.
+ @exception StringIndexOutOfBoundsException if the offset is invalid.
+ */
+ OUStringBuffer & insert(sal_Int32 offset, double d)
+ {
+ sal_Unicode sz[RTL_USTR_MAX_VALUEOFDOUBLE];
+ return insert( offset, sz, rtl_ustr_valueOfDouble( sz, d ) );
+ }
+
+ /**
+ Inserts a single UTF-32 character into this string buffer.
+
+ <p>The single UTF-32 character will be represented within the string
+ buffer as either one or two UTF-16 code units.</p>
+
+ @param offset the offset into this string buffer (from zero to the length
+ of this string buffer, inclusive)
+
+ @param c a well-formed UTF-32 code unit (that is, a value in the range
+ <code>0</code>&ndash;<code>0x10FFFF</code>, but excluding
+ <code>0xD800</code>&ndash;<code>0xDFFF</code>)
+
+ @return this string buffer
+ */
+ OUStringBuffer & insertUtf32(sal_Int32 offset, sal_uInt32 c) {
+ rtl_uStringbuffer_insertUtf32(&pData, &nCapacity, offset, c);
+ return *this;
+ }
+
+ /**
+ Removes the characters in a substring of this sequence.
+
+ The substring begins at the specified <code>start</code> and
+ is <code>len</code> characters long.
+
+ start must be >= 0 && <= This->length
+
+ @param start The beginning index, inclusive
+ @param len The substring length
+ @return this string buffer.
+ */
+ OUStringBuffer & remove( sal_Int32 start, sal_Int32 len )
+ {
+ rtl_uStringbuffer_remove( &pData, start, len );
+ return *this;
+ }
+
+ /**
+ Removes the tail of a string buffer start at the indicate position
+
+ start must be >= 0 && <= This->length
+
+ @param start The beginning index, inclusive. default to 0
+ @return this string buffer.
+
+ @since LibreOffice 4.0
+ */
+ OUStringBuffer & truncate( sal_Int32 start = 0 )
+ {
+ rtl_uStringbuffer_remove( &pData, start, getLength() - start );
+ return *this;
+ }
+
+ /**
+ Replace all occurrences of
+ oldChar in this string buffer with newChar.
+
+ @since LibreOffice 4.0
+
+ @param oldChar the old character.
+ @param newChar the new character.
+ @return this string buffer
+ */
+ OUStringBuffer& replace( sal_Unicode oldChar, sal_Unicode newChar )
+ {
+ sal_Int32 index = 0;
+ while((index = indexOf(oldChar, index)) >= 0)
+ {
+ pData->buffer[ index ] = newChar;
+ }
+ return *this;
+ }
+
+ /** Allows access to the internal data of this OUStringBuffer, for effective
+ manipulation.
+
+ This method should be used with care. After you have called this
+ method, you may use the returned pInternalData or pInternalCapacity only
+ as long as you make no other method call on this OUStringBuffer.
+
+ @param pInternalData
+ This output parameter receives a pointer to the internal data
+ (rtl_uString pointer). pInternalData itself must not be null.
+
+ @param pInternalCapacity
+ This output parameter receives a pointer to the internal capacity.
+ pInternalCapacity itself must not be null.
+ */
+ void accessInternals(rtl_uString *** pInternalData,
+ sal_Int32 ** pInternalCapacity)
+ {
+ *pInternalData = &pData;
+ *pInternalCapacity = &nCapacity;
+ }
+
+
+ /**
+ Returns the index within this string of the first occurrence of the
+ specified character, starting the search at the specified index.
+
+ @since LibreOffice 4.0
+
+ @param ch character to be located.
+ @param fromIndex the index to start the search from.
+ The index must be greater or equal than 0
+ and less or equal as the string length.
+ @return the index of the first occurrence of the character in the
+ character sequence represented by this string that is
+ greater than or equal to fromIndex, or
+ -1 if the character does not occur.
+ */
+ sal_Int32 indexOf( sal_Unicode ch, sal_Int32 fromIndex = 0 ) const
+ {
+ assert( fromIndex >= 0 && fromIndex <= pData->length );
+ sal_Int32 ret = rtl_ustr_indexOfChar_WithLength( pData->buffer+fromIndex, pData->length-fromIndex, ch );
+ return (ret < 0 ? ret : ret+fromIndex);
+ }
+
+ /**
+ Returns the index within this string of the last occurrence of the
+ specified character, searching backward starting at the end.
+
+ @since LibreOffice 4.0
+
+ @param ch character to be located.
+ @return the index of the last occurrence of the character in the
+ character sequence represented by this string, or
+ -1 if the character does not occur.
+ */
+ sal_Int32 lastIndexOf( sal_Unicode ch ) const
+ {
+ return rtl_ustr_lastIndexOfChar_WithLength( pData->buffer, pData->length, ch );
+ }
+
+ /**
+ Returns the index within this string of the last occurrence of the
+ specified character, searching backward starting before the specified
+ index.
+
+ @since LibreOffice 4.0
+
+ @param ch character to be located.
+ @param fromIndex the index before which to start the search.
+ @return the index of the last occurrence of the character in the
+ character sequence represented by this string that
+ is less than fromIndex, or -1
+ if the character does not occur before that point.
+ */
+ sal_Int32 lastIndexOf( sal_Unicode ch, sal_Int32 fromIndex ) const
+ {
+ assert( fromIndex >= 0 && fromIndex <= pData->length );
+ return rtl_ustr_lastIndexOfChar_WithLength( pData->buffer, fromIndex, ch );
+ }
+
+ /**
+ Returns the index within this string of the first occurrence of the
+ specified substring, starting at the specified index.
+
+ If str doesn't include any character, always -1 is
+ returned. This is also the case, if both strings are empty.
+
+ @since LibreOffice 4.0
+
+ @param str the substring to search for.
+ @param fromIndex the index to start the search from.
+ @return If the string argument occurs one or more times as a substring
+ within this string at the starting index, then the index
+ of the first character of the first such substring is
+ returned. If it does not occur as a substring starting
+ at fromIndex or beyond, -1 is returned.
+ */
+#if defined LIBO_INTERNAL_ONLY
+ sal_Int32 indexOf( std::u16string_view str, sal_Int32 fromIndex = 0 ) const
+ {
+ assert( fromIndex >= 0 && fromIndex <= pData->length );
+ sal_Int32 ret = rtl_ustr_indexOfStr_WithLength( pData->buffer+fromIndex, pData->length-fromIndex,
+ str.data(), str.length() );
+ return (ret < 0 ? ret : ret+fromIndex);
+ }
+#else
+ sal_Int32 indexOf( const OUString & str, sal_Int32 fromIndex = 0 ) const
+ {
+ assert( fromIndex >= 0 && fromIndex <= pData->length );
+ sal_Int32 ret = rtl_ustr_indexOfStr_WithLength( pData->buffer+fromIndex, pData->length-fromIndex,
+ str.pData->buffer, str.pData->length );
+ return (ret < 0 ? ret : ret+fromIndex);
+ }
+#endif
+
+ /**
+ @overload
+ This function accepts an ASCII string literal as its argument.
+
+ @since LibreOffice 4.0
+ */
+ template< typename T >
+ typename libreoffice_internal::ConstCharArrayDetector< T, sal_Int32 >::Type indexOf( T& literal, sal_Int32 fromIndex = 0 ) const
+ {
+ assert(
+ libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal));
+ sal_Int32 n = rtl_ustr_indexOfAscii_WithLength(
+ pData->buffer + fromIndex, pData->length - fromIndex,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ return n < 0 ? n : n + fromIndex;
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T>
+ typename
+ libreoffice_internal::ConstCharArrayDetector<T, sal_Int32>::TypeUtf16
+ indexOf(T & literal, sal_Int32 fromIndex = 0) const {
+ assert(fromIndex >= 0);
+ auto n = rtl_ustr_indexOfStr_WithLength(
+ pData->buffer + fromIndex, pData->length - fromIndex,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ return n < 0 ? n : n + fromIndex;
+ }
+#endif
+
+ /**
+ Returns the index within this string of the last occurrence of
+ the specified substring, searching backward starting at the end.
+
+ The returned index indicates the starting index of the substring
+ in this string.
+ If str doesn't include any character, always -1 is
+ returned. This is also the case, if both strings are empty.
+
+ @since LibreOffice 4.0
+
+ @param str the substring to search for.
+ @return If the string argument occurs one or more times as a substring
+ within this string, then the index of the first character of
+ the last such substring is returned. If it does not occur as
+ a substring, -1 is returned.
+ */
+#if defined LIBO_INTERNAL_ONLY
+ sal_Int32 lastIndexOf( std::u16string_view str ) const
+ {
+ return rtl_ustr_lastIndexOfStr_WithLength( pData->buffer, pData->length,
+ str.data(), str.length() );
+ }
+#else
+ sal_Int32 lastIndexOf( const OUString & str ) const
+ {
+ return rtl_ustr_lastIndexOfStr_WithLength( pData->buffer, pData->length,
+ str.pData->buffer, str.pData->length );
+ }
+#endif
+
+ /**
+ Returns the index within this string of the last occurrence of
+ the specified substring, searching backward starting before the specified
+ index.
+
+ The returned index indicates the starting index of the substring
+ in this string.
+ If str doesn't include any character, always -1 is
+ returned. This is also the case, if both strings are empty.
+
+ @since LibreOffice 4.0
+
+ @param str the substring to search for.
+ @param fromIndex the index before which to start the search.
+ @return If the string argument occurs one or more times as a substring
+ within this string before the starting index, then the index
+ of the first character of the last such substring is
+ returned. Otherwise, -1 is returned.
+ */
+#if defined LIBO_INTERNAL_ONLY
+ sal_Int32 lastIndexOf( std::u16string_view str, sal_Int32 fromIndex ) const
+ {
+ assert( fromIndex >= 0 && fromIndex <= pData->length );
+ return rtl_ustr_lastIndexOfStr_WithLength( pData->buffer, fromIndex,
+ str.data(), str.length() );
+ }
+#else
+ sal_Int32 lastIndexOf( const OUString & str, sal_Int32 fromIndex ) const
+ {
+ assert( fromIndex >= 0 && fromIndex <= pData->length );
+ return rtl_ustr_lastIndexOfStr_WithLength( pData->buffer, fromIndex,
+ str.pData->buffer, str.pData->length );
+ }
+#endif
+
+ /**
+ @overload
+ This function accepts an ASCII string literal as its argument.
+ @since LibreOffice 4.0
+ */
+ template< typename T >
+ typename libreoffice_internal::ConstCharArrayDetector< T, sal_Int32 >::Type lastIndexOf( T& literal ) const
+ {
+ assert(
+ libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal));
+ return rtl_ustr_lastIndexOfAscii_WithLength(
+ pData->buffer, pData->length,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /** @overload @since LibreOffice 5.3 */
+ template<typename T>
+ typename
+ libreoffice_internal::ConstCharArrayDetector<T, sal_Int32>::TypeUtf16
+ lastIndexOf(T & literal) const {
+ return rtl_ustr_lastIndexOfStr_WithLength(
+ pData->buffer, pData->length,
+ libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal),
+ libreoffice_internal::ConstCharArrayDetector<T>::length);
+ }
+#endif
+
+ /**
+ Strip the given character from the start of the buffer.
+
+ @since LibreOffice 4.0
+
+ @param c the character to strip
+ @return The number of characters stripped
+
+ */
+ sal_Int32 stripStart(sal_Unicode c = ' ')
+ {
+ sal_Int32 index;
+ for(index = 0; index < getLength() ; index++)
+ {
+ if(pData->buffer[ index ] != c)
+ {
+ break;
+ }
+ }
+ if(index)
+ {
+ remove(0, index);
+ }
+ return index;
+ }
+
+ /**
+ Strip the given character from the end of the buffer.
+
+ @since LibreOffice 4.0
+
+ @param c the character to strip
+ @return The number of characters stripped
+
+ */
+ sal_Int32 stripEnd(sal_Unicode c = ' ')
+ {
+ sal_Int32 result = getLength();
+ sal_Int32 index;
+ for(index = getLength(); index > 0 ; index--)
+ {
+ if(pData->buffer[ index - 1 ] != c)
+ {
+ break;
+ }
+ }
+ if(index < getLength())
+ {
+ truncate(index);
+ }
+ return result - getLength();
+ }
+ /**
+ Strip the given character from the both end of the buffer.
+
+ @since LibreOffice 4.0
+
+ @param c the character to strip
+ @return The number of characters stripped
+
+ */
+ sal_Int32 strip(sal_Unicode c = ' ')
+ {
+ return stripStart(c) + stripEnd(c);
+ }
+
+#if defined LIBO_INTERNAL_ONLY
+ /**
+ Returns a std::u16string_view that is a view of a substring of this string.
+
+ The substring begins at the specified beginIndex. If
+ beginIndex is negative or be greater than the length of
+ this string, behaviour is undefined.
+
+ @param beginIndex the beginning index, inclusive.
+ @return the specified substring.
+ */
+ SAL_WARN_UNUSED_RESULT std::u16string_view subView( sal_Int32 beginIndex ) const
+ {
+ assert(beginIndex >= 0);
+ assert(beginIndex <= getLength());
+ return subView(beginIndex, getLength() - beginIndex);
+ }
+
+ /**
+ Returns a std::u16string_view that is a view of a substring of this string.
+
+ The substring begins at the specified beginIndex and contains count
+ characters. If either beginIndex or count are negative,
+ or beginIndex + count are greater than the length of this string
+ then behaviour is undefined.
+
+ @param beginIndex the beginning index, inclusive.
+ @param count the number of characters.
+ @return the specified substring.
+ */
+ SAL_WARN_UNUSED_RESULT std::u16string_view subView( sal_Int32 beginIndex, sal_Int32 count ) const
+ {
+ assert(beginIndex >= 0);
+ assert(count >= 0);
+ assert(beginIndex <= getLength());
+ assert(count <= getLength() - beginIndex);
+ return std::u16string_view(pData->buffer, sal_uInt32(pData->length)).substr(beginIndex, count);
+ }
+#endif
+
+ /**
+ Returns a new string buffer that is a substring of this string.
+
+ The substring begins at the specified beginIndex. If
+ beginIndex is negative or be greater than the length of
+ this string, behaviour is undefined.
+
+ @param beginIndex the beginning index, inclusive.
+ @return the specified substring.
+ @since LibreOffice 4.1
+ */
+ OUStringBuffer copy( sal_Int32 beginIndex ) const
+ {
+ return copy( beginIndex, getLength() - beginIndex );
+ }
+
+ /**
+ Returns a new string buffer that is a substring of this string.
+
+ The substring begins at the specified beginIndex and contains count
+ characters. If either beginIndex or count are negative,
+ or beginIndex + count are greater than the length of this string
+ then behaviour is undefined.
+
+ @param beginIndex the beginning index, inclusive.
+ @param count the number of characters.
+ @return the specified substring.
+ @since LibreOffice 4.1
+ */
+ OUStringBuffer copy( sal_Int32 beginIndex, sal_Int32 count ) const
+ {
+ assert(beginIndex >= 0 && beginIndex <= getLength());
+ assert(count >= 0 && count <= getLength() - beginIndex);
+ rtl_uString *pNew = NULL;
+ rtl_uStringbuffer_newFromStr_WithLength( &pNew, getStr() + beginIndex, count );
+ return OUStringBuffer( pNew, count + 16 );
+ }
+
+private:
+ OUStringBuffer( rtl_uString * value, const sal_Int32 capacity )
+ {
+ pData = value;
+ nCapacity = capacity;
+ }
+
+ /**
+ A pointer to the data structure which contains the data.
+ */
+ rtl_uString * pData;
+
+ /**
+ The len of the pData->buffer.
+ */
+ sal_Int32 nCapacity;
+};
+
+#if defined LIBO_INTERNAL_ONLY
+template<> struct ToStringHelper<OUStringBuffer> {
+ static std::size_t length(OUStringBuffer const & s) { return s.getLength(); }
+
+ static sal_Unicode * addData(sal_Unicode * buffer, OUStringBuffer const & s) SAL_RETURNS_NONNULL
+ { return addDataHelper(buffer, s.getStr(), s.getLength()); }
+
+ static constexpr bool allowOStringConcat = false;
+ static constexpr bool allowOUStringConcat = true;
+};
+#endif
+
+#if defined LIBO_INTERNAL_ONLY
+ // Define this here to avoid circular includes
+ inline OUString & OUString::operator+=( const OUStringBuffer & str ) &
+ {
+ // Call operator= if this is empty, otherwise rtl_uString_newConcat will attempt to
+ // acquire() the str.pData buffer, which is part of the OUStringBuffer mutable state.
+ if (isEmpty())
+ return operator=(str.toString());
+ else
+ return internalAppend(str.pData);
+ }
+
+ inline OUString const& OUString::unacquired(const OUStringBuffer& str)
+ {
+ return unacquired(&str.pData);
+ }
+#endif
+}
+
+#ifdef RTL_STRING_UNITTEST
+namespace rtl
+{
+typedef rtlunittest::OUStringBuffer OUStringBuffer;
+}
+#endif
+
+#if defined LIBO_INTERNAL_ONLY && !defined RTL_STRING_UNITTEST
+using ::rtl::OUStringBuffer;
+#endif
+
+#endif // INCLUDED_RTL_USTRBUF_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */