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diff --git a/include/rtl/ustring.hxx b/include/rtl/ustring.hxx new file mode 100644 index 000000000..e6d3ed682 --- /dev/null +++ b/include/rtl/ustring.hxx @@ -0,0 +1,3560 @@ +/* -*- 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_USTRING_HXX +#define INCLUDED_RTL_USTRING_HXX + +#include "sal/config.h" + +#include <cassert> +#include <cstddef> +#include <cstdlib> +#include <limits> +#include <new> +#include <ostream> +#include <utility> + +#if defined LIBO_INTERNAL_ONLY +#include <string_view> +#include <type_traits> +#endif + +#include "rtl/ustring.h" +#include "rtl/string.hxx" +#include "rtl/stringutils.hxx" +#include "rtl/textenc.h" + +#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" +#include "config_global.h" +#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 +{ + +class OUStringBuffer; + +#ifdef RTL_STRING_UNITTEST +#undef rtl +#endif + +#if defined LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" +/// @cond INTERNAL + +/** +A wrapper dressing a string literal as a static-refcount rtl_uString. + +This class is not part of public API and is meant to be used only in LibreOffice code. +@since LibreOffice 4.0 +*/ +template<std::size_t N> class SAL_WARN_UNUSED OUStringLiteral { + static_assert(N != 0); + static_assert(N - 1 <= std::numeric_limits<sal_Int32>::max(), "literal too long"); + friend class OUString; + friend class OUStringConstExpr; + +public: +#if HAVE_CPP_CONSTEVAL + consteval +#else + constexpr +#endif + OUStringLiteral(char16_t const (&literal)[N]) { + assertLayout(); + assert(literal[N - 1] == '\0'); + //TODO: Use C++20 constexpr std::copy_n (P0202R3): + for (std::size_t i = 0; i != N; ++i) { + more.buffer[i] = literal[i]; + } + } + + constexpr sal_Int32 getLength() const { return more.length; } + + constexpr sal_Unicode const * getStr() const SAL_RETURNS_NONNULL { return more.buffer; } + + constexpr operator std::u16string_view() const { return {more.buffer, sal_uInt32(more.length)}; } + +private: + static constexpr void assertLayout() { + // These static_asserts verifying the layout compatibility with rtl_uString cannot be class + // member declarations, as offsetof requires a complete type, so defer them to here: + static_assert(std::is_standard_layout_v<OUStringLiteral>); + static_assert(offsetof(OUStringLiteral, str.refCount) == offsetof(OUStringLiteral, more.refCount)); + static_assert(offsetof(OUStringLiteral, str.length) == offsetof(OUStringLiteral, more.length)); + static_assert(offsetof(OUStringLiteral, str.buffer) == offsetof(OUStringLiteral, more.buffer)); + } + + struct Data { + Data() = default; + + oslInterlockedCount refCount = 0x40000000; // SAL_STRING_STATIC_FLAG (sal/rtl/strimp.hxx) + sal_Int32 length = N - 1; + sal_Unicode buffer[N] = {}; //TODO: drop initialization for C++20 (P1331R2) + }; + + union { + rtl_uString str; + Data more = {}; + }; +}; + +#if defined RTL_STRING_UNITTEST +namespace libreoffice_internal { +template<std::size_t N> struct ExceptConstCharArrayDetector<OUStringLiteral<N>> {}; +template<std::size_t N> struct ExceptCharArrayDetector<OUStringLiteral<N>> {}; +} +#endif + +/** + This is intended to be used when declaring compile-time-constant structs or arrays + that can be initialised from named OUStringLiteral e.g. + + constexpr OUStringLiteral AAA = u"aaa"; + constexpr OUStringLiteral BBB = u"bbb"; + constexpr OUStringConstExpr FOO[] { AAA, BBB }; +*/ +class OUString; +class OUStringConstExpr +{ +public: + template<std::size_t N> constexpr OUStringConstExpr(OUStringLiteral<N> const & literal): + pData(const_cast<rtl_uString *>(&literal.str)) {} + + // prevent mis-use + template<std::size_t N> constexpr OUStringConstExpr(OUStringLiteral<N> && literal) + = delete; + + // no destructor necessary because we know we are pointing at a compile-time + // constant OUStringLiteral, which bypasses ref-counting. + + /** + make it easier to pass to OUStringBuffer and similar without casting/converting + */ + constexpr std::u16string_view asView() const { return {pData->buffer, static_cast<sal_uInt32>(pData->length)}; } + + inline operator const OUString&() const; + +private: + rtl_uString* pData; +}; + +/// @endcond +#endif + +/* ======================================================================= */ + +/** + This String class provides base functionality for C++ like Unicode + character array handling. The advantage of this class is that it + handles all the memory management for you - and it does it + more efficiently. If you assign a string to another string, the + data of both strings are shared (without any copy operation or + memory allocation) as long as you do not change the string. This class + also stores the length of the string, so that many operations are + faster than the C-str-functions. + + This class provides only readonly string handling. So you could create + a string and you could only query the content from this string. + It provides also functionality to change the string, but this results + in every case in a new string instance (in the most cases with a + memory allocation). You don't have functionality to change the + content of the string. If you want to change the string content, then + you should use the OStringBuffer class, which provides these + functionalities and avoids too much memory allocation. + + The design of this class is similar to the string classes in Java so + less people should have understanding problems when they use this class. +*/ + +class SAL_WARN_UNUSED SAL_DLLPUBLIC_RTTI OUString +{ +public: + /// @cond INTERNAL + rtl_uString * pData; + /// @endcond + + /** + New string containing no characters. + */ + OUString() + { + pData = NULL; + rtl_uString_new( &pData ); + } + + /** + New string from OUString. + + @param str an OUString. + */ + OUString( const OUString & str ) + { + pData = str.pData; + rtl_uString_acquire( pData ); + } + +#if defined LIBO_INTERNAL_ONLY + /** + Move constructor. + + @param str an OUString. + @since LibreOffice 5.2 + */ + OUString( OUString && str ) noexcept + { + pData = str.pData; + str.pData = nullptr; + rtl_uString_new( &str.pData ); + } +#endif + + /** + New string from OUString data. + + @param str an OUString data. + */ + OUString( rtl_uString * str ) + { + pData = str; + rtl_uString_acquire( pData ); + } + + /** New OUString from OUString data without acquiring it. Takeover of ownership. + + The SAL_NO_ACQUIRE dummy parameter is only there to distinguish this + from other constructors. + + @param str + OUString data + */ + OUString( rtl_uString * str, __sal_NoAcquire ) + { pData = str; } + + /** + New string from a single Unicode character. + + @param value a Unicode character. + */ + explicit OUString( sal_Unicode value ) + : pData (NULL) + { + rtl_uString_newFromStr_WithLength( &pData, &value, 1 ); + } + +#if defined LIBO_INTERNAL_ONLY && !defined RTL_STRING_UNITTEST_CONCAT + /// @cond INTERNAL + // Catch inadvertent conversions to the above ctor (but still allow + // construction from char literals): + OUString(int) = delete; + explicit OUString(char c): + OUString(sal_Unicode(static_cast<unsigned char>(c))) + {} + /// @endcond +#endif + +#if defined LIBO_INTERNAL_ONLY + + template<typename T> explicit OUString( + T const & value, + typename libreoffice_internal::CharPtrDetector<T, libreoffice_internal::Dummy>::TypeUtf16 + = libreoffice_internal::Dummy()): + pData(nullptr) + { rtl_uString_newFromStr(&pData, value); } + + template<typename T> explicit OUString( + T & value, + typename + libreoffice_internal::NonConstCharArrayDetector<T, libreoffice_internal::Dummy>::TypeUtf16 + = libreoffice_internal::Dummy()): + pData(nullptr) + { rtl_uString_newFromStr(&pData, value); } + +#else + + /** + New string from a Unicode character buffer array. + + @param value a NULL-terminated Unicode character array. + */ + OUString( const sal_Unicode * value ) + { + pData = NULL; + rtl_uString_newFromStr( &pData, value ); + } + +#endif + + /** + New string from a Unicode character buffer array. + + @param value a Unicode character array. + @param length the number of character which should be copied. + The character array length must be greater than + or equal to this value. + */ + OUString( const sal_Unicode * value, sal_Int32 length ) + { + pData = NULL; + rtl_uString_newFromStr_WithLength( &pData, value, length ); + } + + /** + New string from an 8-Bit string literal that is expected to contain only + characters in the ASCII set (i.e. first 128 characters). This constructor + allows an efficient and convenient way to create OUString + instances from ASCII literals. When creating strings from data that + is not pure ASCII, it needs to be converted to OUString by explicitly + providing the encoding to use for the conversion. + + If there are any embedded \0's in the string literal, the result is undefined. + Use the overload that explicitly accepts length. + + @param literal the 8-bit ASCII string literal + + @since LibreOffice 3.6 + */ + template< typename T > + OUString( T& literal, typename libreoffice_internal::ConstCharArrayDetector< T, libreoffice_internal::Dummy >::Type = libreoffice_internal::Dummy() ) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + pData = NULL; + if (libreoffice_internal::ConstCharArrayDetector<T>::length == 0) { + rtl_uString_new(&pData); + } else { + rtl_uString_newFromLiteral( + &pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length, 0); + } +#ifdef RTL_STRING_UNITTEST + rtl_string_unittest_const_literal = true; +#endif + } + +#if defined LIBO_INTERNAL_ONLY + /** @overload @since LibreOffice 5.3 */ + template<typename T> OUString( + T & literal, + typename libreoffice_internal::ConstCharArrayDetector< + T, libreoffice_internal::Dummy>::TypeUtf16 + = libreoffice_internal::Dummy()): + pData(nullptr) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + if (libreoffice_internal::ConstCharArrayDetector<T>::length == 0) { + rtl_uString_new(&pData); + } else { + rtl_uString_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 > + OUString( T&, typename libreoffice_internal::ExceptConstCharArrayDetector< T >::Type = libreoffice_internal::Dummy() ) + { + pData = NULL; + 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 > + OUString( const T&, typename libreoffice_internal::ExceptCharArrayDetector< T >::Type = libreoffice_internal::Dummy() ) + { + pData = NULL; + 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" + /// @cond INTERNAL + /** + New string from a string literal. + + @since LibreOffice 5.0 + */ + template<std::size_t N> constexpr OUString(OUStringLiteral<N> const & literal): + pData(const_cast<rtl_uString *>(&literal.str)) {} + template<std::size_t N> OUString(OUStringLiteral<N> &&) = delete; + /// @endcond +#endif + + /** + New string from an 8-Bit character buffer array. + + @param value An 8-Bit character array. + @param length The number of character which should be converted. + The 8-Bit character array length must be + greater than or equal to this value. + @param encoding The text encoding from which the 8-Bit character + sequence should be converted. + @param convertFlags Flags which control the conversion. + see RTL_TEXTTOUNICODE_FLAGS_... + + @exception std::bad_alloc is thrown if an out-of-memory condition occurs + */ + OUString( const char * value, sal_Int32 length, + rtl_TextEncoding encoding, + sal_uInt32 convertFlags = OSTRING_TO_OUSTRING_CVTFLAGS ) + { + pData = NULL; + rtl_string2UString( &pData, value, length, encoding, convertFlags ); + if (pData == NULL) { + throw std::bad_alloc(); + } + } + + /** Create a new string from an array of Unicode code points. + + @param codePoints + an array of at least codePointCount code points, which each must be in + the range from 0 to 0x10FFFF, inclusive. May be null if codePointCount + is zero. + + @param codePointCount + the non-negative number of code points. + + @exception std::bad_alloc + is thrown if either an out-of-memory condition occurs or the resulting + number of UTF-16 code units would have been larger than SAL_MAX_INT32. + + @since UDK 3.2.7 + */ + explicit OUString( + sal_uInt32 const * codePoints, sal_Int32 codePointCount): + pData(NULL) + { + rtl_uString_newFromCodePoints(&pData, codePoints, codePointCount); + if (pData == NULL) { + throw std::bad_alloc(); + } + } + +#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" + /** + @overload + @internal + */ + template< typename T1, typename T2 > + OUString( OUStringConcat< T1, T2 >&& c ) + { + const sal_Int32 l = c.length(); + pData = rtl_uString_alloc( l ); + if (l != 0) + { + sal_Unicode* end = c.addData( pData->buffer ); + pData->length = l; + *end = '\0'; + } + } + + /** + @overload + @internal + */ + template< typename T > + OUString( OUStringNumber< T >&& n ) + : OUString( n.buf, n.length ) + {} +#endif + +#if defined LIBO_INTERNAL_ONLY + explicit OUString(std::u16string_view sv) { + if (sv.size() > sal_uInt32(std::numeric_limits<sal_Int32>::max())) { + throw std::bad_alloc(); + } + pData = nullptr; + rtl_uString_newFromStr_WithLength(&pData, sv.data(), sv.size()); + } +#endif + + /** + Release the string data. + */ + ~OUString() + { + rtl_uString_release( pData ); + } + + /** Provides an OUString const & passing a storage pointer of an + rtl_uString * handle. + It is more convenient to use C++ OUString member functions when dealing + with rtl_uString * handles. Using this function avoids unnecessary + acquire()/release() calls for a temporary OUString object. + + @param ppHandle + pointer to storage + @return + OUString const & based on given storage + */ + static OUString const & unacquired( rtl_uString * const * ppHandle ) + { return * reinterpret_cast< OUString const * >( ppHandle ); } + +#if defined LIBO_INTERNAL_ONLY + /** Provides an OUString const & passing an OUStringBuffer const reference. + It is more convenient to use C++ OUString member functions when checking + current buffer content. Use this function instead of toString (that + allocates a new OUString from buffer data) when the result is used in + comparisons. + + @param str + an OUStringBuffer + @return + OUString const & based on given storage + @since LibreOffice 7.4 + */ + static OUString const& unacquired(const OUStringBuffer& str); +#endif + + /** + Assign a new string. + + @param str an OUString. + */ + OUString & operator=( const OUString & str ) + { + rtl_uString_assign( &pData, str.pData ); + return *this; + } + +#if defined LIBO_INTERNAL_ONLY + /** + Move assign a new string. + + @param str an OUString. + @since LibreOffice 5.2 + */ + OUString & operator=( OUString && str ) noexcept + { + rtl_uString_release( pData ); + pData = str.pData; + str.pData = nullptr; + rtl_uString_new( &str.pData ); + return *this; + } +#endif + + /** + Assign a new string from an 8-Bit string literal that is expected to contain only + characters in the ASCII set (i.e. first 128 characters). This operator + allows an efficient and convenient way to assign OUString + instances from ASCII literals. When assigning strings from data that + is not pure ASCII, it needs to be converted to OUString by explicitly + providing the encoding to use for the conversion. + + @param literal the 8-bit ASCII string literal + + @since LibreOffice 3.6 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, OUString& >::Type operator=( T& literal ) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + if (libreoffice_internal::ConstCharArrayDetector<T>::length == 0) { + rtl_uString_new(&pData); + } else { + rtl_uString_newFromLiteral( + &pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length, 0); + } + return *this; + } + +#if defined LIBO_INTERNAL_ONLY + /** @overload @since LibreOffice 5.3 */ + template<typename T> + typename + libreoffice_internal::ConstCharArrayDetector<T, OUString &>::TypeUtf16 + operator =(T & literal) { + if (libreoffice_internal::ConstCharArrayDetector<T>::length == 0) { + rtl_uString_new(&pData); + } else { + rtl_uString_newFromStr_WithLength( + &pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + return *this; + } + + /** @overload @since LibreOffice 5.4 */ + template<std::size_t N> OUString & operator =(OUStringLiteral<N> const & literal) { + rtl_uString_release(pData); + pData = const_cast<rtl_uString *>(&literal.str); + return *this; + } + template<std::size_t N> OUString & operator =(OUStringLiteral<N> &&) = delete; + + template<typename T> + OUString & operator =(OUStringNumber<T> && n) { + // n.length should never be zero, so no need to add an optimization for that case + rtl_uString_newFromStr_WithLength(&pData, n.buf, n.length); + return *this; + } + + OUString & operator =(std::u16string_view sv) { + if (sv.empty()) { + rtl_uString_new(&pData); + } else { + rtl_uString_newFromStr_WithLength(&pData, sv.data(), sv.size()); + } + return *this; + } +#endif + +#if defined LIBO_INTERNAL_ONLY + /** + Append the contents of an OUStringBuffer to this string. + + @param str an OUStringBuffer. + + @exception std::bad_alloc is thrown if an out-of-memory condition occurs + @since LibreOffice 6.2 + */ + inline OUString & operator+=( const OUStringBuffer & str ) &; +#endif + + /** + Append a string to this string. + + @param str an OUString. + + @exception std::bad_alloc is thrown if an out-of-memory condition occurs + */ + OUString & operator+=( const OUString & str ) +#if defined LIBO_INTERNAL_ONLY + & +#endif + { + return internalAppend(str.pData); + } +#if defined LIBO_INTERNAL_ONLY + void operator+=(OUString const &) && = delete; +#endif + + /** Append an ASCII string literal to this string. + + @param literal an 8-bit ASCII-only string literal + + @since LibreOffice 5.1 + */ + template<typename T> + typename libreoffice_internal::ConstCharArrayDetector<T, OUString &>::Type + operator +=(T & literal) +#if defined LIBO_INTERNAL_ONLY + & +#endif + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + rtl_uString_newConcatAsciiL( + &pData, pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + return *this; + } +#if defined LIBO_INTERNAL_ONLY + template<typename T> + typename libreoffice_internal::ConstCharArrayDetector<T, OUString &>::Type + operator +=(T &) && = delete; +#endif + +#if defined LIBO_INTERNAL_ONLY + /** @overload @since LibreOffice 5.3 */ + template<typename T> + typename + libreoffice_internal::ConstCharArrayDetector<T, OUString &>::TypeUtf16 + operator +=(T & literal) & { + rtl_uString_newConcatUtf16L( + &pData, pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + return *this; + } + template<typename T> + typename + libreoffice_internal::ConstCharArrayDetector<T, OUString &>::TypeUtf16 + operator +=(T &) && = delete; + + /** @overload @since LibreOffice 5.4 */ + template<std::size_t N> OUString & operator +=(OUStringLiteral<N> const & literal) & { + rtl_uString_newConcatUtf16L(&pData, pData, literal.getStr(), literal.getLength()); + return *this; + } + template<std::size_t N> void operator +=(OUStringLiteral<N> const &) && = delete; + + OUString & operator +=(std::u16string_view sv) & { + if (sv.size() > sal_uInt32(std::numeric_limits<sal_Int32>::max())) { + throw std::bad_alloc(); + } + rtl_uString_newConcatUtf16L(&pData, pData, sv.data(), sv.size()); + return *this; + } + void operator +=(std::u16string_view) && = delete; +#endif + +#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" + /** + @overload + @internal + */ + template< typename T1, typename T2 > + OUString& operator+=( OUStringConcat< T1, T2 >&& c ) & { + sal_Int32 l = c.length(); + if( l == 0 ) + return *this; + l += pData->length; + rtl_uString_ensureCapacity( &pData, l ); + sal_Unicode* end = c.addData( pData->buffer + pData->length ); + *end = '\0'; + pData->length = l; + return *this; + } + template<typename T1, typename T2> void operator +=( + OUStringConcat<T1, T2> &&) && = delete; + + /** + @overload + @internal + */ + template< typename T > + OUString& operator+=( OUStringNumber< T >&& n ) & { + sal_Int32 l = n.length; + if( l == 0 ) + return *this; + l += pData->length; + rtl_uString_ensureCapacity( &pData, l ); + sal_Unicode* end = addDataHelper( pData->buffer + pData->length, n.buf, n.length ); + *end = '\0'; + pData->length = l; + return *this; + } + template<typename T> void operator +=( + OUStringNumber<T> &&) && = delete; +#endif + + /** + Clears the string, i.e, makes a zero-character string + @since LibreOffice 4.4 + */ + void clear() + { + rtl_uString_new( &pData ); + } + + /** + Returns the length of this string. + + The length is equal to the number of Unicode characters in this string. + + @return the length of the sequence of characters represented by this + object. + */ + sal_Int32 getLength() const { return pData->length; } + + /** + Checks if a string is empty. + + @return true if the string is empty; + false, otherwise. + + @since LibreOffice 3.4 + */ + bool isEmpty() const + { + return pData->length == 0; + } + + /** + Returns a pointer to the Unicode character buffer for this string. + + It isn't necessarily NULL terminated. + + @return a pointer to the Unicode characters buffer for this object. + */ + 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 the character at the given index. + + @since LibreOffice 3.5 + */ + sal_Unicode operator [](sal_Int32 index) const { + // silence spurious -Werror=strict-overflow warnings from GCC 4.8.2 + assert(index >= 0 && static_cast<sal_uInt32>(index) < static_cast<sal_uInt32>(getLength())); + return getStr()[index]; + } + + /** + Compares two strings. + + The comparison is based on the numeric value of each character in + the strings and return a value indicating their relationship. + This function can't be used for language specific sorting. + + @param str the object to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + */ +#if defined LIBO_INTERNAL_ONLY + sal_Int32 compareTo( std::u16string_view str ) const + { + return rtl_ustr_compare_WithLength( pData->buffer, pData->length, + str.data(), str.length() ); + } +#else + sal_Int32 compareTo( const OUString & str ) const + { + return rtl_ustr_compare_WithLength( pData->buffer, pData->length, + str.pData->buffer, str.pData->length ); + } +#endif + + /** + Compares two strings with a maximum count of characters. + + The comparison is based on the numeric value of each character in + the strings and return a value indicating their relationship. + This function can't be used for language specific sorting. + + @param str the object to be compared. + @param maxLength the maximum count of characters to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + + @since UDK 3.2.7 + */ +#if defined LIBO_INTERNAL_ONLY + sal_Int32 compareTo( std::u16string_view str, sal_Int32 maxLength ) const + { + return rtl_ustr_shortenedCompare_WithLength( pData->buffer, pData->length, + str.data(), str.length(), maxLength ); + } +#else + sal_Int32 compareTo( const OUString & str, sal_Int32 maxLength ) const + { + return rtl_ustr_shortenedCompare_WithLength( pData->buffer, pData->length, + str.pData->buffer, str.pData->length, maxLength ); + } +#endif + + /** + Compares two strings in reverse order. + + The comparison is based on the numeric value of each character in + the strings and return a value indicating their relationship. + This function can't be used for language specific sorting. + + @param str the object to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + */ +#if defined LIBO_INTERNAL_ONLY + sal_Int32 reverseCompareTo(std::u16string_view sv) const { + return rtl_ustr_reverseCompare_WithLength( + pData->buffer, pData->length, sv.data(), sv.size()); + } +#else + sal_Int32 reverseCompareTo( const OUString & str ) const + { + return rtl_ustr_reverseCompare_WithLength( pData->buffer, pData->length, + str.pData->buffer, str.pData->length ); + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 4.1 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, sal_Int32 >::Type reverseCompareTo( T& literal ) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return rtl_ustr_asciil_reverseCompare_WithLength( + pData->buffer, pData->length, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + + /** + Perform a comparison of two strings. + + The result is true if and only if second string + represents the same sequence of characters as the first string. + This function can't be used for language specific comparison. + + @param str the object to be compared. + @return true if the strings are equal; + false, otherwise. + */ + bool equals( const OUString & str ) const + { + if ( pData->length != str.pData->length ) + return false; + if ( pData == str.pData ) + return true; + return rtl_ustr_reverseCompare_WithLength( pData->buffer, pData->length, + str.pData->buffer, str.pData->length ) == 0; + } + + /** + Perform an ASCII lowercase comparison of two strings. + + The result is true if and only if second string + represents the same sequence of characters as the first string, + ignoring the case. + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + This function can't be used for language specific comparison. + + @param str the object to be compared. + @return true if the strings are equal; + false, otherwise. + */ +#if defined LIBO_INTERNAL_ONLY + bool equalsIgnoreAsciiCase(std::u16string_view sv) const { + if ( sal_uInt32(pData->length) != sv.size() ) + return false; + if ( pData->buffer == sv.data() ) + return true; + return + rtl_ustr_compareIgnoreAsciiCase_WithLength( + pData->buffer, pData->length, sv.data(), sv.size()) + == 0; + } +#else + bool equalsIgnoreAsciiCase( const OUString & str ) const + { + if ( pData->length != str.pData->length ) + return false; + if ( pData == str.pData ) + return true; + return rtl_ustr_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length, + str.pData->buffer, str.pData->length ) == 0; + } +#endif + + /** + Perform an ASCII lowercase comparison of two strings. + + Compare the two strings with uppercase ASCII + character values between 65 and 90 (ASCII A-Z) interpreted as + values between 97 and 122 (ASCII a-z). + This function can't be used for language specific comparison. + + @param str the object to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + + @since LibreOffice 4.0 + */ +#if defined LIBO_INTERNAL_ONLY + sal_Int32 compareToIgnoreAsciiCase(std::u16string_view sv) const { + return rtl_ustr_compareIgnoreAsciiCase_WithLength( + pData->buffer, pData->length, sv.data(), sv.size()); + } +#else + sal_Int32 compareToIgnoreAsciiCase( const OUString & str ) const + { + return rtl_ustr_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length, + str.pData->buffer, str.pData->length ); + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 3.6 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type equalsIgnoreAsciiCase( T& literal ) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return + (pData->length + == libreoffice_internal::ConstCharArrayDetector<T>::length) + && (rtl_ustr_ascii_compareIgnoreAsciiCase_WithLength( + pData->buffer, pData->length, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal)) + == 0); + } + + /** + Match against a substring appearing in this string. + + The result is true if and only if the second string appears as a substring + of this string, at the given position. + This function can't be used for language specific comparison. + + @param str the object (substring) to be compared. + @param fromIndex the index to start the comparison from. + The index must be greater than or equal to 0 + and less or equal as the string length. + @return true if str match with the characters in the string + at the given position; + false, otherwise. + */ +#if defined LIBO_INTERNAL_ONLY + bool match(std::u16string_view sv, sal_Int32 fromIndex = 0) const { + return + rtl_ustr_shortenedCompare_WithLength( + pData->buffer + fromIndex, pData->length - fromIndex, sv.data(), sv.size(), + sv.size()) + == 0; + } +#else + bool match( const OUString & str, sal_Int32 fromIndex = 0 ) const + { + return rtl_ustr_shortenedCompare_WithLength( pData->buffer+fromIndex, pData->length-fromIndex, + str.pData->buffer, str.pData->length, str.pData->length ) == 0; + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 3.6 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type match( T& literal, sal_Int32 fromIndex = 0 ) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return + rtl_ustr_ascii_shortenedCompare_WithLength( + pData->buffer+fromIndex, pData->length-fromIndex, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length) + == 0; + } + + /** + Match against a substring appearing in this string, ignoring the case of + ASCII letters. + + The result is true if and only if the second string appears as a substring + of this string, at the given position. + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + This function can't be used for language specific comparison. + + @param str the object (substring) to be compared. + @param fromIndex the index to start the comparison from. + The index must be greater than or equal to 0 + and less than or equal to the string length. + @return true if str match with the characters in the string + at the given position; + false, otherwise. + */ +#if defined LIBO_INTERNAL_ONLY + bool matchIgnoreAsciiCase(std::u16string_view sv, sal_Int32 fromIndex = 0) const { + return + rtl_ustr_shortenedCompareIgnoreAsciiCase_WithLength( + pData->buffer + fromIndex, pData->length - fromIndex, sv.data(), sv.size(), + sv.size()) + == 0; + } +#else + bool matchIgnoreAsciiCase( const OUString & str, sal_Int32 fromIndex = 0 ) const + { + return rtl_ustr_shortenedCompareIgnoreAsciiCase_WithLength( pData->buffer+fromIndex, pData->length-fromIndex, + str.pData->buffer, str.pData->length, + str.pData->length ) == 0; + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 3.6 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type matchIgnoreAsciiCase( T& literal, sal_Int32 fromIndex = 0 ) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return matchIgnoreAsciiCaseAsciiL( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length, fromIndex); + } + + /** + Compares two strings. + + The comparison is based on the numeric value of each character in + the strings and return a value indicating their relationship. + 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. + This function can't be used for language specific sorting. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + */ + sal_Int32 compareToAscii( const char* asciiStr ) const + { + return rtl_ustr_ascii_compare_WithLength( pData->buffer, pData->length, asciiStr ); + } + + /** + Compares two strings with a maximum count of characters. + + The comparison is based on the numeric value of each character in + the strings and return a value indicating their relationship. + 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. + This function can't be used for language specific sorting. + + @deprecated This is a confusing overload with unexpectedly different + semantics from the one-parameter form, so it is marked as deprecated. + Practically all uses compare the return value against zero and can thus + be replaced with uses of startsWith. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @param maxLength the maximum count of characters to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + */ + SAL_DEPRECATED( + "replace s1.compareToAscii(s2, strlen(s2)) == 0 with s1.startsWith(s2)") + sal_Int32 compareToAscii( const char * asciiStr, sal_Int32 maxLength ) const + { + return rtl_ustr_ascii_shortenedCompare_WithLength( pData->buffer, pData->length, + asciiStr, maxLength ); + } + + /** + Compares two strings in reverse order. + + This could be useful, if normally both strings start with the same + content. The comparison is based on the numeric value of each character + in the strings and return a value indicating their relationship. + 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 and must be greater than + or equal to asciiStrLength. + This function can't be used for language specific sorting. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @param asciiStrLength the length of the ascii string + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + */ + sal_Int32 reverseCompareToAsciiL( const char * asciiStr, sal_Int32 asciiStrLength ) const + { + return rtl_ustr_asciil_reverseCompare_WithLength( pData->buffer, pData->length, + asciiStr, asciiStrLength ); + } + + /** + Perform a comparison of two strings. + + The result is true if and only if second string + represents the same sequence of characters as the first string. + 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. + This function can't be used for language specific comparison. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @return true if the strings are equal; + false, otherwise. + */ + bool equalsAscii( const char* asciiStr ) const + { + return rtl_ustr_ascii_compare_WithLength( pData->buffer, pData->length, + asciiStr ) == 0; + } + + /** + Perform a comparison of two strings. + + The result is true if and only if second string + represents the same sequence of characters as the first string. + 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 and must be greater than + or equal to asciiStrLength. + This function can't be used for language specific comparison. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @param asciiStrLength the length of the ascii string + @return true if the strings are equal; + false, otherwise. + */ + bool equalsAsciiL( const char* asciiStr, sal_Int32 asciiStrLength ) const + { + if ( pData->length != asciiStrLength ) + return false; + + return rtl_ustr_asciil_reverseEquals_WithLength( + pData->buffer, asciiStr, asciiStrLength ); + } + + /** + Perform an ASCII lowercase comparison of two strings. + + The result is true if and only if second string + represents the same sequence of characters as the first string, + ignoring the case. + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + 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. + This function can't be used for language specific comparison. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @return true if the strings are equal; + false, otherwise. + */ + bool equalsIgnoreAsciiCaseAscii( const char * asciiStr ) const + { + return rtl_ustr_ascii_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length, asciiStr ) == 0; + } + + /** + Compares two ASCII strings ignoring case + + The comparison is based on the numeric value of each character in + the strings and return a value indicating their relationship. + 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. + This function can't be used for language specific sorting. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @return 0 - if both strings are equal + < 0 - if this string is less than the string argument + > 0 - if this string is greater than the string argument + + @since LibreOffice 3.5 + */ + sal_Int32 compareToIgnoreAsciiCaseAscii( const char * asciiStr ) const + { + return rtl_ustr_ascii_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length, asciiStr ); + } + + /** + Perform an ASCII lowercase comparison of two strings. + + The result is true if and only if second string + represents the same sequence of characters as the first string, + ignoring the case. + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + 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 and must be greater than + or equal to asciiStrLength. + This function can't be used for language specific comparison. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @param asciiStrLength the length of the ascii string + @return true if the strings are equal; + false, otherwise. + */ + bool equalsIgnoreAsciiCaseAsciiL( const char * asciiStr, sal_Int32 asciiStrLength ) const + { + if ( pData->length != asciiStrLength ) + return false; + + return rtl_ustr_ascii_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length, asciiStr ) == 0; + } + + /** + Match against a substring appearing in this string. + + The result is true if and only if the second string appears as a substring + of this string, at the given position. + 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 and must be greater than or + equal to asciiStrLength. + This function can't be used for language specific comparison. + + @param asciiStr the object (substring) to be compared. + @param asciiStrLength the length of asciiStr. + @param fromIndex the index to start the comparison from. + The index must be greater than or equal to 0 + and less than or equal to the string length. + @return true if str match with the characters in the string + at the given position; + false, otherwise. + */ + bool matchAsciiL( const char* asciiStr, sal_Int32 asciiStrLength, sal_Int32 fromIndex = 0 ) const + { + return rtl_ustr_ascii_shortenedCompare_WithLength( pData->buffer+fromIndex, pData->length-fromIndex, + asciiStr, asciiStrLength ) == 0; + } + + // This overload is left undefined, to detect calls of matchAsciiL that + // erroneously use RTL_CONSTASCII_USTRINGPARAM instead of + // RTL_CONSTASCII_STRINGPARAM (but would lead to ambiguities on 32 bit + // platforms): +#if SAL_TYPES_SIZEOFLONG == 8 + void matchAsciiL(char const *, sal_Int32, rtl_TextEncoding) const; +#endif + + /** + Match against a substring appearing in this string, ignoring the case of + ASCII letters. + + The result is true if and only if the second string appears as a substring + of this string, at the given position. + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + 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 and must be greater than or + equal to asciiStrLength. + This function can't be used for language specific comparison. + + @param asciiStr the 8-Bit ASCII character string to be compared. + @param asciiStrLength the length of the ascii string + @param fromIndex the index to start the comparison from. + The index must be greater than or equal to 0 + and less than or equal to the string length. + @return true if str match with the characters in the string + at the given position; + false, otherwise. + */ + bool matchIgnoreAsciiCaseAsciiL( const char* asciiStr, sal_Int32 asciiStrLength, sal_Int32 fromIndex = 0 ) const + { + return rtl_ustr_ascii_shortenedCompareIgnoreAsciiCase_WithLength( pData->buffer+fromIndex, pData->length-fromIndex, + asciiStr, asciiStrLength ) == 0; + } + + // This overload is left undefined, to detect calls of + // matchIgnoreAsciiCaseAsciiL that erroneously use + // RTL_CONSTASCII_USTRINGPARAM instead of RTL_CONSTASCII_STRINGPARAM (but + // would lead to ambiguities on 32 bit platforms): +#if SAL_TYPES_SIZEOFLONG == 8 + void matchIgnoreAsciiCaseAsciiL(char const *, sal_Int32, rtl_TextEncoding) + const; +#endif + + /** + Check whether this string starts with a given substring. + + @param str the substring to be compared + + @param rest if non-null, and this function returns true, then assign a + copy of the remainder of this string to *rest. Available since + LibreOffice 4.2 + + @return true if and only if the given str appears as a substring at the + start of this string + + @since LibreOffice 4.0 + */ +#if defined LIBO_INTERNAL_ONLY + bool startsWith(std::u16string_view sv, OUString * rest = nullptr) const { + auto const b = match(sv); + if (b && rest != nullptr) { + *rest = copy(sv.size()); + } + return b; + } +#else + bool startsWith(OUString const & str, OUString * rest = NULL) const { + bool b = match(str); + if (b && rest != NULL) { + *rest = copy(str.getLength()); + } + return b; + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 4.0 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type startsWith( + T & literal, OUString * rest = NULL) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + bool b + = (libreoffice_internal::ConstCharArrayDetector<T>::length + <= sal_uInt32(pData->length)) + && rtl_ustr_asciil_reverseEquals_WithLength( + pData->buffer, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + if (b && rest != NULL) { + *rest = copy( + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + return b; + } + + /** + Check whether this string starts with a given string, ignoring the case of + ASCII letters. + + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + This function can't be used for language specific comparison. + + @param str the substring to be compared + + @param rest if non-null, and this function returns true, then assign a + copy of the remainder of this string to *rest. Available since + LibreOffice 4.2 + + @return true if and only if the given str appears as a substring at the + start of this string, ignoring the case of ASCII letters ("A"--"Z" and + "a"--"z") + + @since LibreOffice 4.0 + */ +#if defined LIBO_INTERNAL_ONLY + bool startsWithIgnoreAsciiCase(std::u16string_view sv, OUString * rest = nullptr) const { + auto const b = matchIgnoreAsciiCase(sv); + if (b && rest != nullptr) { + *rest = copy(sv.size()); + } + return b; + } +#else + bool startsWithIgnoreAsciiCase(OUString const & str, OUString * rest = NULL) + const + { + bool b = matchIgnoreAsciiCase(str); + if (b && rest != NULL) { + *rest = copy(str.getLength()); + } + return b; + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 4.0 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type + startsWithIgnoreAsciiCase(T & literal, OUString * rest = NULL) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + bool b + = (libreoffice_internal::ConstCharArrayDetector<T>::length + <= sal_uInt32(pData->length)) + && (rtl_ustr_ascii_compareIgnoreAsciiCase_WithLengths( + pData->buffer, + libreoffice_internal::ConstCharArrayDetector<T>::length, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length) + == 0); + if (b && rest != NULL) { + *rest = copy( + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + return b; + } + + /** + Check whether this string ends with a given substring. + + @param str the substring to be compared + + @param rest if non-null, and this function returns true, then assign a + copy of the remainder of this string to *rest. Available since + LibreOffice 4.2 + + @return true if and only if the given str appears as a substring at the + end of this string + + @since LibreOffice 3.6 + */ +#if defined LIBO_INTERNAL_ONLY + bool endsWith(std::u16string_view sv, OUString * rest = nullptr) const { + auto const b = sv.size() <= sal_uInt32(pData->length) + && match(sv, pData->length - sv.size()); + if (b && rest != nullptr) { + *rest = copy(0, (pData->length - sv.size())); + } + return b; + } +#else + bool endsWith(OUString const & str, OUString * rest = NULL) const { + bool b = str.getLength() <= getLength() + && match(str, getLength() - str.getLength()); + if (b && rest != NULL) { + *rest = copy(0, getLength() - str.getLength()); + } + return b; + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 3.6 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type + endsWith(T & literal, OUString * rest = NULL) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + bool b + = (libreoffice_internal::ConstCharArrayDetector<T>::length + <= sal_uInt32(pData->length)) + && rtl_ustr_asciil_reverseEquals_WithLength( + (pData->buffer + pData->length + - libreoffice_internal::ConstCharArrayDetector<T>::length), + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + if (b && rest != NULL) { + *rest = copy( + 0, + (getLength() + - libreoffice_internal::ConstCharArrayDetector<T>::length)); + } + return b; + } + + /** + Check whether this string ends with a given ASCII string. + + @param asciiStr a sequence of at least asciiStrLength ASCII characters + (bytes in the range 0x00--0x7F) + @param asciiStrLength the length of asciiStr; must be non-negative + @return true if this string ends with asciiStr; otherwise, false is + returned + + @since UDK 3.2.7 + */ + bool endsWithAsciiL(char const * asciiStr, sal_Int32 asciiStrLength) + const + { + return asciiStrLength <= pData->length + && rtl_ustr_asciil_reverseEquals_WithLength( + pData->buffer + pData->length - asciiStrLength, asciiStr, + asciiStrLength); + } + + /** + Check whether this string ends with a given string, ignoring the case of + ASCII letters. + + Character values between 65 and 90 (ASCII A-Z) are interpreted as + values between 97 and 122 (ASCII a-z). + This function can't be used for language specific comparison. + + @param str the substring to be compared + + @param rest if non-null, and this function returns true, then assign a + copy of the remainder of this string to *rest. Available since + LibreOffice 4.2 + + @return true if and only if the given str appears as a substring at the + end of this string, ignoring the case of ASCII letters ("A"--"Z" and + "a"--"z") + + @since LibreOffice 3.6 + */ +#if defined LIBO_INTERNAL_ONLY + bool endsWithIgnoreAsciiCase(std::u16string_view sv, OUString * rest = nullptr) const { + auto const b = sv.size() <= sal_uInt32(pData->length) + && matchIgnoreAsciiCase(sv, pData->length - sv.size()); + if (b && rest != nullptr) { + *rest = copy(0, pData->length - sv.size()); + } + return b; + } +#else + bool endsWithIgnoreAsciiCase(OUString const & str, OUString * rest = NULL) const + { + bool b = str.getLength() <= getLength() + && matchIgnoreAsciiCase(str, getLength() - str.getLength()); + if (b && rest != NULL) { + *rest = copy(0, getLength() - str.getLength()); + } + return b; + } +#endif + + /** + @overload + This function accepts an ASCII string literal as its argument. + @since LibreOffice 3.6 + */ + template< typename T > + typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type + endsWithIgnoreAsciiCase(T & literal, OUString * rest = NULL) const + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + bool b + = (libreoffice_internal::ConstCharArrayDetector<T>::length + <= sal_uInt32(pData->length)) + && (rtl_ustr_ascii_compareIgnoreAsciiCase_WithLengths( + (pData->buffer + pData->length + - libreoffice_internal::ConstCharArrayDetector<T>::length), + libreoffice_internal::ConstCharArrayDetector<T>::length, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length) + == 0); + if (b && rest != NULL) { + *rest = copy( + 0, + (getLength() + - libreoffice_internal::ConstCharArrayDetector<T>::length)); + } + return b; + } + + /** + Check whether this string ends with a given ASCII string, ignoring the + case of ASCII letters. + + @param asciiStr a sequence of at least asciiStrLength ASCII characters + (bytes in the range 0x00--0x7F) + @param asciiStrLength the length of asciiStr; must be non-negative + @return true if this string ends with asciiStr, ignoring the case of ASCII + letters ("A"--"Z" and "a"--"z"); otherwise, false is returned + */ + bool endsWithIgnoreAsciiCaseAsciiL( + char const * asciiStr, sal_Int32 asciiStrLength) const + { + return asciiStrLength <= pData->length + && (rtl_ustr_ascii_compareIgnoreAsciiCase_WithLengths( + pData->buffer + pData->length - asciiStrLength, + asciiStrLength, asciiStr, asciiStrLength) + == 0); + } + + friend bool operator == ( const OUString& rStr1, const OUString& rStr2 ) + { return rStr1.equals(rStr2); } + + friend bool operator != ( const OUString& rStr1, const OUString& rStr2 ) + { return !(operator == ( rStr1, rStr2 )); } + + friend bool operator < ( const OUString& rStr1, const OUString& rStr2 ) + { return rStr1.compareTo( rStr2 ) < 0; } + friend bool operator > ( const OUString& rStr1, const OUString& rStr2 ) + { return rStr1.compareTo( rStr2 ) > 0; } + friend bool operator <= ( const OUString& rStr1, const OUString& rStr2 ) + { return rStr1.compareTo( rStr2 ) <= 0; } + friend bool operator >= ( const OUString& rStr1, const OUString& rStr2 ) + { return rStr1.compareTo( rStr2 ) >= 0; } + +#if defined LIBO_INTERNAL_ONLY + + template<typename T> friend typename libreoffice_internal::CharPtrDetector<T, bool>::TypeUtf16 + operator ==(OUString const & s1, T const & s2) { + return rtl_ustr_compare_WithLength(s1.getStr(), s1.getLength(), s2, rtl_ustr_getLength(s2)) + == 0; + } + + template<typename T> + friend typename libreoffice_internal::NonConstCharArrayDetector<T, bool>::TypeUtf16 + operator ==(OUString const & s1, T & s2) { + return rtl_ustr_compare_WithLength(s1.getStr(), s1.getLength(), s2, rtl_ustr_getLength(s2)) + == 0; + } + + template<typename T> friend typename libreoffice_internal::CharPtrDetector<T, bool>::TypeUtf16 + operator ==(T const & s1, OUString const & s2) { + return rtl_ustr_compare_WithLength(s1, rtl_ustr_getLength(s1), s2.getStr(), s2.getLength()) + == 0; + } + + template<typename T> + friend typename libreoffice_internal::NonConstCharArrayDetector<T, bool>::TypeUtf16 + operator ==(T & s1, OUString const & s2) { + return rtl_ustr_compare_WithLength(s1, rtl_ustr_getLength(s1), s2.getStr(), s2.getLength()) + == 0; + } + + template<typename T> friend typename libreoffice_internal::CharPtrDetector<T, bool>::TypeUtf16 + operator !=(OUString const & s1, T const & s2) { return !(s1 == s2); } + + template<typename T> + friend typename libreoffice_internal::NonConstCharArrayDetector<T, bool>::TypeUtf16 + operator !=(OUString const & s1, T & s2) { return !(s1 == s2); } + + template<typename T> friend typename libreoffice_internal::CharPtrDetector<T, bool>::TypeUtf16 + operator !=(T const & s1, OUString const & s2) { return !(s1 == s2); } + + template<typename T> + friend typename libreoffice_internal::NonConstCharArrayDetector<T, bool>::TypeUtf16 + operator !=(T & s1, OUString const & s2) { return !(s1 == s2); } + +#else + + friend bool operator == ( const OUString& rStr1, const sal_Unicode * pStr2 ) + { return rStr1.compareTo( pStr2 ) == 0; } + friend bool operator == ( const sal_Unicode * pStr1, const OUString& rStr2 ) + { return OUString( pStr1 ).compareTo( rStr2 ) == 0; } + + friend bool operator != ( const OUString& rStr1, const sal_Unicode * pStr2 ) + { return !(operator == ( rStr1, pStr2 )); } + friend bool operator != ( const sal_Unicode * pStr1, const OUString& rStr2 ) + { return !(operator == ( pStr1, rStr2 )); } + +#endif + + /** + * Compare string to an ASCII string literal. + * + * This operator is equal to calling equalsAsciiL(). + * + * @since LibreOffice 3.6 + */ + template< typename T > + friend typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type operator==( const OUString& rString, T& literal ) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return rString.equalsAsciiL( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + /** + * Compare string to an ASCII string literal. + * + * This operator is equal to calling equalsAsciiL(). + * + * @since LibreOffice 3.6 + */ + template< typename T > + friend typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type operator==( T& literal, const OUString& rString ) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return rString.equalsAsciiL( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + /** + * Compare string to an ASCII string literal. + * + * This operator is equal to calling !equalsAsciiL(). + * + * @since LibreOffice 3.6 + */ + template< typename T > + friend typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type operator!=( const OUString& rString, T& literal ) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return !rString.equalsAsciiL( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + /** + * Compare string to an ASCII string literal. + * + * This operator is equal to calling !equalsAsciiL(). + * + * @since LibreOffice 3.6 + */ + template< typename T > + friend typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type operator!=( T& literal, const OUString& rString ) + { + assert( + libreoffice_internal::ConstCharArrayDetector<T>::isValid(literal)); + return !rString.equalsAsciiL( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(literal), + libreoffice_internal::ConstCharArrayDetector<T>::length); + } + +#if defined LIBO_INTERNAL_ONLY + /** @overload @since LibreOffice 5.3 */ + template<typename T> friend typename libreoffice_internal::ConstCharArrayDetector<T, bool>::TypeUtf16 + operator ==(OUString const & string, T & literal) { + return + rtl_ustr_reverseCompare_WithLength( + string.pData->buffer, string.pData->length, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length) + == 0; + } + /** @overload @since LibreOffice 5.3 */ + template<typename T> friend typename libreoffice_internal::ConstCharArrayDetector<T, bool>::TypeUtf16 + operator ==(T & literal, OUString const & string) { + return + rtl_ustr_reverseCompare_WithLength( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length, + string.pData->buffer, string.pData->length) + == 0; + } + /** @overload @since LibreOffice 5.3 */ + template<typename T> friend typename libreoffice_internal::ConstCharArrayDetector<T, bool>::TypeUtf16 + operator !=(OUString const & string, T & literal) { + return + rtl_ustr_reverseCompare_WithLength( + string.pData->buffer, string.pData->length, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length) + != 0; + } + /** @overload @since LibreOffice 5.3 */ + template<typename T> friend typename libreoffice_internal::ConstCharArrayDetector<T, bool>::TypeUtf16 + operator !=(T & literal, OUString const & string) { + return + rtl_ustr_reverseCompare_WithLength( + libreoffice_internal::ConstCharArrayDetector<T>::toPointer( + literal), + libreoffice_internal::ConstCharArrayDetector<T>::length, + string.pData->buffer, string.pData->length) + != 0; + } +#endif + + /** + Returns a hashcode for this string. + + @return a hash code value for this object. + + @see rtl::OUStringHash for convenient use of std::unordered_map + */ + sal_Int32 hashCode() const + { + return rtl_ustr_hashCode_WithLength( pData->buffer, pData->length ); + } + + /** + Returns the index within this string of the first occurrence of the + specified character, starting the search at the specified index. + + @param ch character to be located. + @param fromIndex the index to start the search from. + The index must be greater than or equal to 0 + and less than or equal to 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 + { + 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. + + @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. + + @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 + { + 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. + + @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 sv, sal_Int32 fromIndex = 0) const { + auto const n = rtl_ustr_indexOfStr_WithLength( + pData->buffer + fromIndex, pData->length - fromIndex, sv.data(), sv.size()); + return n < 0 ? n : n + fromIndex; + } +#else + sal_Int32 indexOf( const OUString & str, sal_Int32 fromIndex = 0 ) const + { + 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 3.6 + */ + 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; + } + + /** + Returns the index within this string of the first occurrence of the + specified ASCII substring, starting at the specified index. + + @param str + the substring to be searched for. Need not be null-terminated, but must + be at least as long as the specified len. Must only contain characters + in the ASCII range 0x00--7F. + + @param len + the length of the substring; must be non-negative. + + @param fromIndex + the index to start the search from. Must be in the range from zero to + the length of this string, inclusive. + + @return + the index (starting at 0) of the first character of the first occurrence + of the substring within this string starting at the given fromIndex, or + -1 if the substring does not occur. If len is zero, -1 is returned. + + @since UDK 3.2.7 + */ + sal_Int32 indexOfAsciiL( + char const * str, sal_Int32 len, sal_Int32 fromIndex = 0) const + { + sal_Int32 ret = rtl_ustr_indexOfAscii_WithLength( + pData->buffer + fromIndex, pData->length - fromIndex, str, len); + return ret < 0 ? ret : ret + fromIndex; + } + + // This overload is left undefined, to detect calls of indexOfAsciiL that + // erroneously use RTL_CONSTASCII_USTRINGPARAM instead of + // RTL_CONSTASCII_STRINGPARAM (but would lead to ambiguities on 32 bit + // platforms): +#if SAL_TYPES_SIZEOFLONG == 8 + void indexOfAsciiL(char const *, sal_Int32 len, rtl_TextEncoding) const; +#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. + + @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 sv) const { + return rtl_ustr_lastIndexOfStr_WithLength( + pData->buffer, pData->length, sv.data(), sv.size()); + } +#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. + + @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 sv, sal_Int32 fromIndex) const { + return rtl_ustr_lastIndexOfStr_WithLength(pData->buffer, fromIndex, sv.data(), sv.size()); + } +#else + sal_Int32 lastIndexOf( const OUString & str, sal_Int32 fromIndex ) const + { + 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 3.6 + */ + 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); + } + + /** + Returns the index within this string of the last occurrence of the + specified ASCII substring. + + @param str + the substring to be searched for. Need not be null-terminated, but must + be at least as long as the specified len. Must only contain characters + in the ASCII range 0x00--7F. + + @param len + the length of the substring; must be non-negative. + + @return + the index (starting at 0) of the first character of the last occurrence + of the substring within this string, or -1 if the substring does not + occur. If len is zero, -1 is returned. + + @since UDK 3.2.7 + */ + sal_Int32 lastIndexOfAsciiL(char const * str, sal_Int32 len) const + { + return rtl_ustr_lastIndexOfAscii_WithLength( + pData->buffer, pData->length, str, len); + } + + /** + Returns a new string 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. + */ + SAL_WARN_UNUSED_RESULT OUString copy( sal_Int32 beginIndex ) const + { + return copy(beginIndex, getLength() - beginIndex); + } + + /** + Returns a new string 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. + */ + SAL_WARN_UNUSED_RESULT OUString copy( sal_Int32 beginIndex, sal_Int32 count ) const + { + rtl_uString *pNew = NULL; + rtl_uString_newFromSubString( &pNew, pData, beginIndex, count ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + +#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(*this).substr(beginIndex, count); + } +#endif + +#ifndef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" + /** + Concatenates the specified string to the end of this string. + + @param str the string that is concatenated to the end + of this string. + @return a string that represents the concatenation of this string + followed by the string argument. + */ + SAL_WARN_UNUSED_RESULT OUString concat( const OUString & str ) const + { + rtl_uString* pNew = NULL; + rtl_uString_newConcat( &pNew, pData, str.pData ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } +#endif + +#ifndef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" + friend OUString operator+( const OUString& rStr1, const OUString& rStr2 ) + { + return rStr1.concat( rStr2 ); + } +#endif + +// hide this from internal code to avoid ambiguous lookup error +#ifndef LIBO_INTERNAL_ONLY + /** + Returns a new string resulting from replacing n = count characters + from position index in this string with newStr. + + @param index the replacing index in str. + The index must be greater than or equal to 0 and + less than or equal to the length of the string. + @param count the count of characters that will be replaced + The count must be greater than or equal to 0 and + less than or equal to the length of the string minus index. + @param newStr the new substring. + @return the new string. + */ + SAL_WARN_UNUSED_RESULT OUString replaceAt( sal_Int32 index, sal_Int32 count, const OUString& newStr ) const + { + rtl_uString* pNew = NULL; + rtl_uString_newReplaceStrAt( &pNew, pData, index, count, newStr.pData ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } +#endif + +#ifdef LIBO_INTERNAL_ONLY + SAL_WARN_UNUSED_RESULT OUString replaceAt( sal_Int32 index, sal_Int32 count, std::u16string_view newStr ) const + { + rtl_uString* pNew = NULL; + rtl_uString_newReplaceStrAtUtf16L( &pNew, pData, index, count, newStr.data(), newStr.size() ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } +#endif + + /** + Returns a new string resulting from replacing all occurrences of + oldChar in this string with newChar. + + If the character oldChar does not occur in the character sequence + represented by this object, then the string is assigned with + str. + + @param oldChar the old character. + @param newChar the new character. + @return a string derived from this string by replacing every + occurrence of oldChar with newChar. + */ + SAL_WARN_UNUSED_RESULT OUString replace( sal_Unicode oldChar, sal_Unicode newChar ) const + { + rtl_uString* pNew = NULL; + rtl_uString_newReplace( &pNew, pData, oldChar, newChar ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Returns a new string resulting from replacing the first occurrence of a + given substring with another substring. + + @param from the substring to be replaced + + @param to the replacing substring + + @param[in,out] index pointer to a start index; if the pointer is + non-null: upon entry to the function, its value is the index into this + string at which to start searching for the \p from substring, the value + must be non-negative and not greater than this string's length; upon exiting + the function its value is the index into this string at which the + replacement took place or -1 if no replacement took place; if the pointer + is null, searching always starts at index 0 + + @since LibreOffice 3.6 + */ +#if defined LIBO_INTERNAL_ONLY + [[nodiscard]] OUString replaceFirst( + std::u16string_view from, std::u16string_view to, sal_Int32 * index = nullptr) const + { + rtl_uString * s = nullptr; + sal_Int32 i = 0; + rtl_uString_newReplaceFirstUtf16LUtf16L( + &s, pData, from.data(), from.size(), to.data(), to.size(), + index == nullptr ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } +#else + SAL_WARN_UNUSED_RESULT OUString replaceFirst( + OUString const & from, OUString const & to, sal_Int32 * index = NULL) const + { + rtl_uString * s = NULL; + sal_Int32 i = 0; + rtl_uString_newReplaceFirst( + &s, pData, from.pData, to.pData, index == NULL ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } +#endif + + /** + Returns a new string resulting from replacing the first occurrence of a + given substring with another substring. + + @param from ASCII string literal, the substring to be replaced + + @param to the replacing substring + + @param[in,out] index pointer to a start index; if the pointer is + non-null: upon entry to the function, its value is the index into the this + string at which to start searching for the \p from substring, the value + must be non-negative and not greater than this string's length; upon exiting + the function its value is the index into this string at which the + replacement took place or -1 if no replacement took place; if the pointer + is null, searching always starts at index 0 + + @since LibreOffice 3.6 + */ +#if defined LIBO_INTERNAL_ONLY + template<typename T> [[nodiscard]] + typename libreoffice_internal::ConstCharArrayDetector<T, OUString >::Type replaceFirst( + T & from, std::u16string_view to, sal_Int32 * index = nullptr) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(from)); + rtl_uString * s = nullptr; + sal_Int32 i = 0; + rtl_uString_newReplaceFirstAsciiLUtf16L( + &s, pData, libreoffice_internal::ConstCharArrayDetector<T>::toPointer(from), + libreoffice_internal::ConstCharArrayDetector<T>::length, to.data(), to.size(), + index == nullptr ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } +#else + template< typename T > + SAL_WARN_UNUSED_RESULT typename libreoffice_internal::ConstCharArrayDetector< T, OUString >::Type replaceFirst( T& from, OUString const & to, + sal_Int32 * index = NULL) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(from)); + rtl_uString * s = NULL; + sal_Int32 i = 0; + rtl_uString_newReplaceFirstAsciiL( + &s, pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(from), + libreoffice_internal::ConstCharArrayDetector<T>::length, to.pData, + index == NULL ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } +#endif + + /** + Returns a new string resulting from replacing the first occurrence of a + given substring with another substring. + + @param from the substring to be replaced + + @param to ASCII string literal, the replacing substring + + @param[in,out] index pointer to a start index; if the pointer is + non-null: upon entry to the function, its value is the index into the this + string at which to start searching for the \p from substring, the value + must be non-negative and not greater than this string's length; upon exiting + the function its value is the index into this string at which the + replacement took place or -1 if no replacement took place; if the pointer + is null, searching always starts at index 0 + + @since LibreOffice 5.1 + */ +#if defined LIBO_INTERNAL_ONLY + template<typename T> [[nodiscard]] + typename libreoffice_internal::ConstCharArrayDetector<T, OUString >::Type replaceFirst( + std::u16string_view from, T & to, sal_Int32 * index = nullptr) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(to)); + rtl_uString * s = nullptr; + sal_Int32 i = 0; + rtl_uString_newReplaceFirstUtf16LAsciiL( + &s, pData, from.data(), from.size(), + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(to), + libreoffice_internal::ConstCharArrayDetector<T>::length, index == nullptr ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } +#else + template< typename T > + SAL_WARN_UNUSED_RESULT typename libreoffice_internal::ConstCharArrayDetector< T, OUString >::Type replaceFirst( OUString const & from, T& to, + sal_Int32 * index = NULL) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(to)); + rtl_uString * s = NULL; + sal_Int32 i = 0; + rtl_uString_newReplaceFirstToAsciiL( + &s, pData, from.pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(to), + libreoffice_internal::ConstCharArrayDetector<T>::length, + index == NULL ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } +#endif + + /** + Returns a new string resulting from replacing the first occurrence of a + given substring with another substring. + + @param from ASCII string literal, the substring to be replaced + + @param to ASCII string literal, the substring to be replaced + + @param[in,out] index pointer to a start index; if the pointer is + non-null: upon entry to the function, its value is the index into the this + string at which to start searching for the \p from substring, the value + must be non-negative and not greater than this string's length; upon exiting + the function its value is the index into this string at which the + replacement took place or -1 if no replacement took place; if the pointer + is null, searching always starts at index 0 + + @since LibreOffice 3.6 + */ + template< typename T1, typename T2 > + SAL_WARN_UNUSED_RESULT typename libreoffice_internal::ConstCharArrayDetector< T1, typename libreoffice_internal::ConstCharArrayDetector< T2, OUString >::Type >::Type + replaceFirst( T1& from, T2& to, sal_Int32 * index = NULL) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T1>::isValid(from)); + assert(libreoffice_internal::ConstCharArrayDetector<T2>::isValid(to)); + rtl_uString * s = NULL; + sal_Int32 i = 0; + rtl_uString_newReplaceFirstAsciiLAsciiL( + &s, pData, + libreoffice_internal::ConstCharArrayDetector<T1>::toPointer(from), + libreoffice_internal::ConstCharArrayDetector<T1>::length, + libreoffice_internal::ConstCharArrayDetector<T2>::toPointer(to), + libreoffice_internal::ConstCharArrayDetector<T2>::length, + index == NULL ? &i : index); + return OUString(s, SAL_NO_ACQUIRE); + } + + /** + Returns a new string resulting from replacing all occurrences of a given + substring with another substring. + + Replacing subsequent occurrences picks up only after a given replacement. + That is, replacing from "xa" to "xx" in "xaa" results in "xxa", not "xxx". + + @param from the substring to be replaced + + @param to the replacing substring + + @param fromIndex the position in the string where we will begin searching + + @since LibreOffice 4.0 + */ +#if defined LIBO_INTERNAL_ONLY + [[nodiscard]] OUString replaceAll( + std::u16string_view from, std::u16string_view to, sal_Int32 fromIndex = 0) const + { + rtl_uString * s = nullptr; + rtl_uString_newReplaceAllFromIndexUtf16LUtf16L( + &s, pData, from.data(), from.size(), to.data(), to.size(), fromIndex); + return OUString(s, SAL_NO_ACQUIRE); + } +#else + SAL_WARN_UNUSED_RESULT OUString replaceAll( + OUString const & from, OUString const & to, sal_Int32 fromIndex = 0) const + { + rtl_uString * s = NULL; + rtl_uString_newReplaceAllFromIndex(&s, pData, from.pData, to.pData, fromIndex); + return OUString(s, SAL_NO_ACQUIRE); + } +#endif + + /** + Returns a new string resulting from replacing all occurrences of a given + substring with another substring. + + Replacing subsequent occurrences picks up only after a given replacement. + That is, replacing from "xa" to "xx" in "xaa" results in "xxa", not "xxx". + + @param from ASCII string literal, the substring to be replaced + + @param to the replacing substring + + @since LibreOffice 3.6 + */ +#if defined LIBO_INTERNAL_ONLY + template<typename T> [[nodiscard]] + typename libreoffice_internal::ConstCharArrayDetector<T, OUString >::Type replaceAll( + T & from, std::u16string_view to) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(from)); + rtl_uString * s = nullptr; + rtl_uString_newReplaceAllAsciiLUtf16L( + &s, pData, libreoffice_internal::ConstCharArrayDetector<T>::toPointer(from), + libreoffice_internal::ConstCharArrayDetector<T>::length, to.data(), to.size()); + return OUString(s, SAL_NO_ACQUIRE); + } +#else + template< typename T > + SAL_WARN_UNUSED_RESULT typename libreoffice_internal::ConstCharArrayDetector< T, OUString >::Type replaceAll( T& from, OUString const & to) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(from)); + rtl_uString * s = NULL; + rtl_uString_newReplaceAllAsciiL( + &s, pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(from), + libreoffice_internal::ConstCharArrayDetector<T>::length, to.pData); + return OUString(s, SAL_NO_ACQUIRE); + } +#endif + + /** + Returns a new string resulting from replacing all occurrences of a given + substring with another substring. + + Replacing subsequent occurrences picks up only after a given replacement. + That is, replacing from "xa" to "xx" in "xaa" results in "xxa", not "xxx". + + @param from the substring to be replaced + + @param to ASCII string literal, the replacing substring + + @since LibreOffice 5.1 + */ +#if defined LIBO_INTERNAL_ONLY + template<typename T> [[nodiscard]] + typename libreoffice_internal::ConstCharArrayDetector<T, OUString >::Type replaceAll( + std::u16string_view from, T & to) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(to)); + rtl_uString * s = nullptr; + rtl_uString_newReplaceAllUtf16LAsciiL( + &s, pData, from.data(), from.size(), + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(to), + libreoffice_internal::ConstCharArrayDetector<T>::length); + return OUString(s, SAL_NO_ACQUIRE); + } +#else + template< typename T > + SAL_WARN_UNUSED_RESULT typename libreoffice_internal::ConstCharArrayDetector< T, OUString >::Type replaceAll( OUString const & from, T& to) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T>::isValid(to)); + rtl_uString * s = NULL; + rtl_uString_newReplaceAllToAsciiL( + &s, pData, from.pData, + libreoffice_internal::ConstCharArrayDetector<T>::toPointer(to), + libreoffice_internal::ConstCharArrayDetector<T>::length); + return OUString(s, SAL_NO_ACQUIRE); + } +#endif + + /** + Returns a new string resulting from replacing all occurrences of a given + substring with another substring. + + Replacing subsequent occurrences picks up only after a given replacement. + That is, replacing from "xa" to "xx" in "xaa" results in "xxa", not "xxx". + + @param from ASCII string literal, the substring to be replaced + + @param to ASCII string literal, the substring to be replaced + + @since LibreOffice 3.6 + */ + template< typename T1, typename T2 > + SAL_WARN_UNUSED_RESULT typename libreoffice_internal::ConstCharArrayDetector< T1, typename libreoffice_internal::ConstCharArrayDetector< T2, OUString >::Type >::Type + replaceAll( T1& from, T2& to ) const + { + assert(libreoffice_internal::ConstCharArrayDetector<T1>::isValid(from)); + assert(libreoffice_internal::ConstCharArrayDetector<T2>::isValid(to)); + rtl_uString * s = NULL; + rtl_uString_newReplaceAllAsciiLAsciiL( + &s, pData, + libreoffice_internal::ConstCharArrayDetector<T1>::toPointer(from), + libreoffice_internal::ConstCharArrayDetector<T1>::length, + libreoffice_internal::ConstCharArrayDetector<T2>::toPointer(to), + libreoffice_internal::ConstCharArrayDetector<T2>::length); + return OUString(s, SAL_NO_ACQUIRE); + } + + /** + Converts from this string all ASCII uppercase characters (65-90) + to ASCII lowercase characters (97-122). + + This function can't be used for language specific conversion. + If the string doesn't contain characters which must be converted, + then the new string is assigned with str. + + @return the string, converted to ASCII lowercase. + */ + SAL_WARN_UNUSED_RESULT OUString toAsciiLowerCase() const + { + rtl_uString* pNew = NULL; + rtl_uString_newToAsciiLowerCase( &pNew, pData ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Converts from this string all ASCII lowercase characters (97-122) + to ASCII uppercase characters (65-90). + + This function can't be used for language specific conversion. + If the string doesn't contain characters which must be converted, + then the new string is assigned with str. + + @return the string, converted to ASCII uppercase. + */ + SAL_WARN_UNUSED_RESULT OUString toAsciiUpperCase() const + { + rtl_uString* pNew = NULL; + rtl_uString_newToAsciiUpperCase( &pNew, pData ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Returns a new string resulting from removing white space from both ends + of the string. + + All characters that have codes less than or equal to + 32 (the space character), and Unicode General Punctuation area Space + and some Control characters are considered to be white space (see + implIsWhitespace). + If the string doesn't contain white spaces at both ends, + then the new string is assigned with str. + + @return the string, with white space removed from the front and end. + */ + SAL_WARN_UNUSED_RESULT OUString trim() const + { + rtl_uString* pNew = NULL; + rtl_uString_newTrim( &pNew, pData ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Returns a token in the string. + + Example: + sal_Int32 nIndex = 0; + do + { + ... + OUString aToken = aStr.getToken( 0, ';', nIndex ); + ... + } + while ( nIndex >= 0 ); + + @param token the number of the token to return + @param cTok the character which separate the tokens. + @param index the position at which the token is searched in the + string. + The index must not be greater than the length of the + string. + This param is set to the position of the + next token or to -1, if it is the last token. + @return the token; if either token or index is negative, an empty token + is returned (and index is set to -1) + */ + OUString getToken( sal_Int32 token, sal_Unicode cTok, sal_Int32& index ) const + { + rtl_uString * pNew = NULL; + index = rtl_uString_getToken( &pNew, pData, token, cTok, index ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Returns a token from the string. + + The same as getToken(sal_Int32, sal_Unicode, sal_Int32 &), but always + passing in 0 as the start index in the third argument. + + @param count the number of the token to return, starting with 0 + @param separator the character which separates the tokens + + @return the given token, or an empty string + + @since LibreOffice 3.6 + */ + OUString getToken(sal_Int32 count, sal_Unicode separator) const { + sal_Int32 n = 0; + return getToken(count, separator, n); + } + + /** + Returns the Boolean value from this string. + + This function can't be used for language specific conversion. + + @return true, if the string is 1 or "True" in any ASCII case. + false in any other case. + */ + bool toBoolean() const + { + return rtl_ustr_toBoolean( pData->buffer ); + } + + /** + Returns the first character from this string. + + @return the first character from this string or 0, if this string + is empty. + */ + sal_Unicode toChar() const + { + return pData->buffer[0]; + } + + /** + Returns the int32 value from this string. + + This function can't be used for language specific conversion. + + @param radix the radix (between 2 and 36) + @return the int32 represented from this string. + 0 if this string represents no number or one of too large + magnitude. + */ + sal_Int32 toInt32( sal_Int16 radix = 10 ) const + { + return rtl_ustr_toInt32( pData->buffer, radix ); + } + + /** + Returns the uint32 value from this string. + + This function can't be used for language specific conversion. + + @param radix the radix (between 2 and 36) + @return the uint32 represented from this string. + 0 if this string represents no number or one of too large + magnitude. + + @since LibreOffice 4.2 + */ + sal_uInt32 toUInt32( sal_Int16 radix = 10 ) const + { + return rtl_ustr_toUInt32( pData->buffer, radix ); + } + + /** + Returns the int64 value from this string. + + This function can't be used for language specific conversion. + + @param radix the radix (between 2 and 36) + @return the int64 represented from this string. + 0 if this string represents no number or one of too large + magnitude. + */ + sal_Int64 toInt64( sal_Int16 radix = 10 ) const + { + return rtl_ustr_toInt64( pData->buffer, radix ); + } + + /** + Returns the uint64 value from this string. + + This function can't be used for language specific conversion. + + @param radix the radix (between 2 and 36) + @return the uint64 represented from this string. + 0 if this string represents no number or one of too large + magnitude. + + @since LibreOffice 4.1 + */ + sal_uInt64 toUInt64( sal_Int16 radix = 10 ) const + { + return rtl_ustr_toUInt64( pData->buffer, radix ); + } + + /** + Returns the float value from this string. + + This function can't be used for language specific conversion. + + @return the float represented from this string. + 0.0 if this string represents no number. + */ + float toFloat() const + { + return rtl_ustr_toFloat( pData->buffer ); + } + + /** + Returns the double value from this string. + + This function can't be used for language specific conversion. + + @return the double represented from this string. + 0.0 if this string represents no number. + */ + double toDouble() const + { + return rtl_ustr_toDouble( pData->buffer ); + } + + + /** + Return a canonical representation for a string. + + A pool of strings, initially empty is maintained privately + by the string class. On invocation, if present in the pool + the original string will be returned. Otherwise this string, + or a copy thereof will be added to the pool and returned. + + @return + a version of the string from the pool. + + @exception std::bad_alloc is thrown if an out-of-memory condition occurs + + @since UDK 3.2.7 + */ + OUString intern() const + { + rtl_uString * pNew = NULL; + rtl_uString_intern( &pNew, pData ); + if (pNew == NULL) { + throw std::bad_alloc(); + } + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Return a canonical representation for a converted string. + + A pool of strings, initially empty is maintained privately + by the string class. On invocation, if present in the pool + the original string will be returned. Otherwise this string, + or a copy thereof will be added to the pool and returned. + + @param value a 8-Bit character array. + @param length the number of character which should be converted. + The 8-Bit character array length must be + greater than or equal to this value. + @param encoding the text encoding from which the 8-Bit character + sequence should be converted. + @param convertFlags flags which controls the conversion. + see RTL_TEXTTOUNICODE_FLAGS_... + @param pInfo pointer to return conversion status or NULL. + + @return + a version of the converted string from the pool. + + @exception std::bad_alloc is thrown if an out-of-memory condition occurs + + @since UDK 3.2.7 + */ + static OUString intern( const char * value, sal_Int32 length, + rtl_TextEncoding encoding, + sal_uInt32 convertFlags = OSTRING_TO_OUSTRING_CVTFLAGS, + sal_uInt32 *pInfo = NULL ) + { + rtl_uString * pNew = NULL; + rtl_uString_internConvert( &pNew, value, length, encoding, + convertFlags, pInfo ); + if (pNew == NULL) { + throw std::bad_alloc(); + } + return OUString( pNew, SAL_NO_ACQUIRE ); + } + + /** + Converts to an OString, signalling failure. + + @param pTarget + An out parameter receiving the converted OString. Must not be null; the + contents are not modified if conversion fails (convertToOString returns + false). + + @param nEncoding + The text encoding to convert into. Must be an octet encoding (i.e., + rtl_isOctetTextEncoding(nEncoding) must return true). + + @param nFlags + A combination of RTL_UNICODETOTEXT_FLAGS that detail how to do the + conversion (see rtl_convertUnicodeToText). RTL_UNICODETOTEXT_FLAGS_FLUSH + need not be included, it is implicitly assumed. Typical uses are either + RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR | + RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR (fail if a Unicode character cannot + be converted to the target nEncoding) or OUSTRING_TO_OSTRING_CVTFLAGS + (make a best efforts conversion). + + @return + True if the conversion succeeded, false otherwise. + */ + bool convertToString(OString * pTarget, rtl_TextEncoding nEncoding, + sal_uInt32 nFlags) const + { + return rtl_convertUStringToString(&pTarget->pData, pData->buffer, + pData->length, nEncoding, nFlags); + } + + /** Iterate through this string based on code points instead of UTF-16 code + units. + + See Chapter 3 of The Unicode Standard 5.0 (Addison--Wesley, 2006) for + definitions of the various terms used in this description. + + This string is interpreted as a sequence of zero or more UTF-16 code + units. For each index into this sequence (from zero to one less than + the length of the sequence, inclusive), a code point represented + starting at the given index is computed as follows: + + - If the UTF-16 code unit addressed by the index constitutes a + well-formed UTF-16 code unit sequence, the computed code point is the + scalar value encoded by that UTF-16 code unit sequence. + + - Otherwise, if the index is at least two UTF-16 code units away from + the end of the sequence, and the sequence of two UTF-16 code units + addressed by the index constitutes a well-formed UTF-16 code unit + sequence, the computed code point is the scalar value encoded by that + UTF-16 code unit sequence. + + - Otherwise, the computed code point is the UTF-16 code unit addressed + by the index. (This last case catches unmatched surrogates as well as + indices pointing into the middle of surrogate pairs.) + + @param indexUtf16 + pointer to a UTF-16 based index into this string; must not be null. On + entry, the index must be in the range from zero to the length of this + string (in UTF-16 code units), inclusive. Upon successful return, the + index will be updated to address the UTF-16 code unit that is the given + incrementCodePoints away from the initial index. + + @param incrementCodePoints + the number of code points to move the given *indexUtf16. If + non-negative, moving is done after determining the code point at the + index. If negative, moving is done before determining the code point + at the (then updated) index. The value must be such that the resulting + UTF-16 based index is in the range from zero to the length of this + string (in UTF-16 code units), inclusive. + + @return + the code point (an integer in the range from 0 to 0x10FFFF, inclusive) + that is represented within this string starting at the index computed as + follows: If incrementCodePoints is non-negative, the index is the + initial value of *indexUtf16; if incrementCodePoints is negative, the + index is the updated value of *indexUtf16. In either case, the computed + index must be in the range from zero to one less than the length of this + string (in UTF-16 code units), inclusive. + + @since UDK 3.2.7 + */ + sal_uInt32 iterateCodePoints( + sal_Int32 * indexUtf16, sal_Int32 incrementCodePoints = 1) const + { + return rtl_uString_iterateCodePoints( + pData, indexUtf16, incrementCodePoints); + } + + /** + * Convert an OString to an OUString, assuming that the OString is + * UTF-8-encoded. + * + * @param rSource + * an OString to convert + * + * @since LibreOffice 4.4 + */ +#if defined LIBO_INTERNAL_ONLY + static OUString fromUtf8(std::string_view rSource) + { + OUString aTarget; + bool bSuccess = rtl_convertStringToUString(&aTarget.pData, + rSource.data(), + rSource.length(), + RTL_TEXTENCODING_UTF8, + RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR|RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR|RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR); + (void) bSuccess; + assert(bSuccess); + return aTarget; + } +#else + static OUString fromUtf8(const OString& rSource) + { + OUString aTarget; + bool bSuccess = rtl_convertStringToUString(&aTarget.pData, + rSource.getStr(), + rSource.getLength(), + RTL_TEXTENCODING_UTF8, + RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR|RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR|RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR); + (void) bSuccess; + assert(bSuccess); + return aTarget; + } +#endif + + /** + * Convert this string to an OString, assuming that the string can be + * UTF-8-encoded successfully. + * + * In other words, you must not use this method on a random sequence of + * UTF-16 code units, but only at places where it is assumed that the + * content is a proper string. + * + * @since LibreOffice 4.4 + */ + OString toUtf8() const + { + OString aTarget; + bool bSuccess = rtl_convertUStringToString(&aTarget.pData, + getStr(), + getLength(), + RTL_TEXTENCODING_UTF8, + RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR|RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR); + (void) bSuccess; + assert(bSuccess); + return aTarget; + } + +#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" + + static OUStringNumber< int > number( int i, sal_Int16 radix = 10 ) + { + return OUStringNumber< int >( i, radix ); + } + static OUStringNumber< long long > number( long long ll, sal_Int16 radix = 10 ) + { + return OUStringNumber< long long >( ll, radix ); + } + static OUStringNumber< unsigned long long > number( unsigned long long ll, sal_Int16 radix = 10 ) + { + return OUStringNumber< unsigned long long >( ll, radix ); + } + static OUStringNumber< unsigned long long > number( unsigned int i, sal_Int16 radix = 10 ) + { + return number( static_cast< unsigned long long >( i ), radix ); + } + static OUStringNumber< long long > number( long i, sal_Int16 radix = 10) + { + return number( static_cast< long long >( i ), radix ); + } + static OUStringNumber< unsigned long long > number( unsigned long i, sal_Int16 radix = 10 ) + { + return number( static_cast< unsigned long long >( i ), radix ); + } + static OUStringNumber< float > number( float f ) + { + return OUStringNumber< float >( f ); + } + static OUStringNumber< double > number( double d ) + { + return OUStringNumber< double >( d ); + } +#else + /** + Returns the string representation of the integer argument. + + This function can't be used for language specific conversion. + + @param i an integer value + @param radix the radix (between 2 and 36) + @return a string with the string representation of the argument. + @since LibreOffice 4.1 + */ + static OUString number( int i, sal_Int16 radix = 10 ) + { + sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFINT32]; + return OUString(aBuf, rtl_ustr_valueOfInt32(aBuf, i, radix)); + } + /// @overload + /// @since LibreOffice 4.1 + static OUString number( unsigned int i, sal_Int16 radix = 10 ) + { + return number( static_cast< unsigned long long >( i ), radix ); + } + /// @overload + /// @since LibreOffice 4.1 + static OUString number( long i, sal_Int16 radix = 10) + { + return number( static_cast< long long >( i ), radix ); + } + /// @overload + /// @since LibreOffice 4.1 + static OUString number( unsigned long i, sal_Int16 radix = 10 ) + { + return number( static_cast< unsigned long long >( i ), radix ); + } + /// @overload + /// @since LibreOffice 4.1 + static OUString number( long long ll, sal_Int16 radix = 10 ) + { + sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFINT64]; + return OUString(aBuf, rtl_ustr_valueOfInt64(aBuf, ll, radix)); + } + /// @overload + /// @since LibreOffice 4.1 + static OUString number( unsigned long long ll, sal_Int16 radix = 10 ) + { + sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFUINT64]; + return OUString(aBuf, rtl_ustr_valueOfUInt64(aBuf, ll, radix)); + } + + /** + Returns the string representation of the float argument. + + This function can't be used for language specific conversion. + + @param f a float. + @return a string with the decimal representation of the argument. + @since LibreOffice 4.1 + */ + static OUString number( float f ) + { + sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFFLOAT]; + return OUString(aBuf, rtl_ustr_valueOfFloat(aBuf, f)); + } + + /** + Returns the string representation of the double argument. + + This function can't be used for language specific conversion. + + @param d a double. + @return a string with the decimal representation of the argument. + @since LibreOffice 4.1 + */ + static OUString number( double d ) + { + sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFDOUBLE]; + return OUString(aBuf, rtl_ustr_valueOfDouble(aBuf, d)); + } +#endif + + /** + Returns the string representation of the sal_Bool argument. + + If the sal_Bool is true, the string "true" is returned. + If the sal_Bool is false, the string "false" is returned. + This function can't be used for language specific conversion. + + @param b a sal_Bool. + @return a string with the string representation of the argument. + @deprecated use boolean() + */ + SAL_DEPRECATED("use boolean()") static OUString valueOf( sal_Bool b ) + { + return boolean(b); + } + + /** + Returns the string representation of the boolean argument. + + If the argument is true, the string "true" is returned. + If the argument is false, the string "false" is returned. + This function can't be used for language specific conversion. + + @param b a bool. + @return a string with the string representation of the argument. + @since LibreOffice 4.1 + */ + static OUString boolean( bool b ) + { + sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFBOOLEAN]; + return OUString(aBuf, rtl_ustr_valueOfBoolean(aBuf, b)); + } + + /** + Returns the string representation of the char argument. + + @param c a character. + @return a string with the string representation of the argument. + @deprecated use operator, function or constructor taking char or sal_Unicode argument + */ + SAL_DEPRECATED("convert to OUString or use directly") static OUString valueOf( sal_Unicode c ) + { + return OUString( &c, 1 ); + } + + /** + Returns the string representation of the int argument. + + This function can't be used for language specific conversion. + + @param i a int32. + @param radix the radix (between 2 and 36) + @return a string with the string representation of the argument. + @deprecated use number() + */ + SAL_DEPRECATED("use number()") static OUString valueOf( sal_Int32 i, sal_Int16 radix = 10 ) + { + return number( i, radix ); + } + + /** + Returns the string representation of the long argument. + + This function can't be used for language specific conversion. + + @param ll a int64. + @param radix the radix (between 2 and 36) + @return a string with the string representation of the argument. + @deprecated use number() + */ + SAL_DEPRECATED("use number()") static OUString valueOf( sal_Int64 ll, sal_Int16 radix = 10 ) + { + return number( ll, radix ); + } + + /** + Returns the string representation of the float argument. + + This function can't be used for language specific conversion. + + @param f a float. + @return a string with the string representation of the argument. + @deprecated use number() + */ + SAL_DEPRECATED("use number()") static OUString valueOf( float f ) + { + return number(f); + } + + /** + Returns the string representation of the double argument. + + This function can't be used for language specific conversion. + + @param d a double. + @return a string with the string representation of the argument. + @deprecated use number() + */ + SAL_DEPRECATED("use number()") static OUString valueOf( double d ) + { + return number(d); + } + + /** + Returns an OUString copied without conversion from an ASCII + character string. + + 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. + + Note that for string literals it is simpler and more efficient + to directly use the OUString constructor. + + @param value the 8-Bit ASCII character string + @return a string with the string representation of the argument. + */ + static OUString createFromAscii( const char * value ) + { + rtl_uString* pNew = NULL; + rtl_uString_newFromAscii( &pNew, value ); + return OUString( pNew, SAL_NO_ACQUIRE ); + } + +#if defined LIBO_INTERNAL_ONLY + static OUString createFromAscii(std::string_view value) { + rtl_uString * p = nullptr; + rtl_uString_newFromLiteral(&p, value.data(), value.size(), 0); //TODO: check for overflow + return OUString(p, SAL_NO_ACQUIRE); + } + #endif + +#if defined LIBO_INTERNAL_ONLY + operator std::u16string_view() const { return {getStr(), sal_uInt32(getLength())}; } +#endif + +#if defined LIBO_INTERNAL_ONLY + // A wrapper for the first expression in an + // + // OUString::Concat(e1) + e2 + ... + // + // concatenation chain, when neither of the first two e1, e2 is one of our rtl string-related + // classes (so something like + // + // OUString s = "a" + (b ? std::u16string_view(u"c") : std::u16string_view(u"dd")); + // + // would not compile): + template<typename T> [[nodiscard]] static + typename std::enable_if_t< + ToStringHelper<T>::allowOUStringConcat, OUStringConcat<OUStringConcatMarker, T>> + Concat(T const & value) { return OUStringConcat<OUStringConcatMarker, T>({}, value); } + + // This overload is needed so that an argument of type 'char const[N]' ends up as + // 'OUStringConcat<rtl::OUStringConcatMarker, char const[N]>' rather than as + // 'OUStringConcat<rtl::OUStringConcatMarker, char[N]>': + template<typename T, std::size_t N> [[nodiscard]] static + typename std::enable_if_t< + ToStringHelper<T[N]>::allowOUStringConcat, OUStringConcat<OUStringConcatMarker, T[N]>> + Concat(T (& value)[N]) { return OUStringConcat<OUStringConcatMarker, T[N]>({}, value); } +#endif + +private: + OUString & internalAppend( rtl_uString* pOtherData ) + { + rtl_uString* pNewData = NULL; + rtl_uString_newConcat( &pNewData, pData, pOtherData ); + if (pNewData == NULL) { + throw std::bad_alloc(); + } + rtl_uString_assign(&pData, pNewData); + rtl_uString_release(pNewData); + return *this; + } + +}; + +#if defined LIBO_INTERNAL_ONLY +// Can only define this after we define OUString +inline OUStringConstExpr::operator const OUString &() const { return OUString::unacquired(&pData); } +#endif + +#if defined LIBO_INTERNAL_ONLY +// Prevent the operator ==/!= overloads with 'sal_Unicode const *' parameter from +// being selected for nonsensical code like +// +// if (ouIdAttr == nullptr) +// +void operator ==(OUString const &, std::nullptr_t) = delete; +void operator ==(std::nullptr_t, OUString const &) = delete; +void operator !=(OUString const &, std::nullptr_t) = delete; +void operator !=(std::nullptr_t, OUString const &) = delete; +#endif + +#if defined LIBO_INTERNAL_ONLY && !defined RTL_STRING_UNITTEST +inline bool operator ==(OUString const & lhs, OUStringConcatenation const & rhs) +{ return lhs == std::u16string_view(rhs); } +inline bool operator !=(OUString const & lhs, OUStringConcatenation const & rhs) +{ return lhs != std::u16string_view(rhs); } +inline bool operator ==(OUStringConcatenation const & lhs, OUString const & rhs) +{ return std::u16string_view(lhs) == rhs; } +inline bool operator !=(OUStringConcatenation const & lhs, OUString const & rhs) +{ return std::u16string_view(lhs) != rhs; } +#endif + +#if defined LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" +/// @cond INTERNAL + +/** + @internal +*/ +template<> +struct ToStringHelper< OUString > + { + static std::size_t length( const OUString& s ) { return s.getLength(); } + static sal_Unicode* addData( sal_Unicode* buffer, const OUString& s ) { return addDataHelper( buffer, s.getStr(), s.getLength()); } + static const bool allowOStringConcat = false; + static const bool allowOUStringConcat = true; + }; + +/** + @internal +*/ +template<std::size_t N> +struct ToStringHelper< OUStringLiteral<N> > + { + static std::size_t length( const OUStringLiteral<N>& str ) { return str.getLength(); } + static sal_Unicode* addData( sal_Unicode* buffer, const OUStringLiteral<N>& str ) { return addDataHelper( buffer, str.getStr(), str.getLength() ); } + static const bool allowOStringConcat = false; + static const bool allowOUStringConcat = true; + }; + +/** + @internal +*/ +template< typename charT, typename traits, typename T1, typename T2 > +inline std::basic_ostream<charT, traits> & operator <<( + std::basic_ostream<charT, traits> & stream, OUStringConcat< T1, T2 >&& concat) +{ + return stream << OUString( std::move(concat) ); +} + + +/// @endcond +#endif + +/** A helper to use OUStrings with hash maps. + + Instances of this class are unary function objects that can be used as + hash function arguments to std::unordered_map and similar constructs. + */ +struct OUStringHash +{ + /** Compute a hash code for a string. + + @param rString + a string. + + @return + a hash code for the string. This hash code should not be stored + persistently, as its computation may change in later revisions. + */ + size_t operator()(const OUString& rString) const + { return static_cast<size_t>(rString.hashCode()); } +}; + +/* ======================================================================= */ + +/** Convert an OString to an OUString, using a specific text encoding. + + The lengths of the two strings may differ (e.g., for double-byte + encodings, UTF-7, UTF-8). + + @param rStr + an OString to convert. + + @param encoding + the text encoding to use for conversion. + + @param convertFlags + flags which control the conversion. Either use + OSTRING_TO_OUSTRING_CVTFLAGS, or see + <http://udk.openoffice.org/cpp/man/spec/textconversion.html> for more + details. + */ +#if defined LIBO_INTERNAL_ONLY +inline OUString OStringToOUString( std::string_view rStr, + rtl_TextEncoding encoding, + sal_uInt32 convertFlags = OSTRING_TO_OUSTRING_CVTFLAGS ) +{ + return OUString( rStr.data(), rStr.length(), encoding, convertFlags ); +} +#else +inline OUString OStringToOUString( const OString & rStr, + rtl_TextEncoding encoding, + sal_uInt32 convertFlags = OSTRING_TO_OUSTRING_CVTFLAGS ) +{ + return OUString( rStr.getStr(), rStr.getLength(), encoding, convertFlags ); +} +#endif + +/** Convert an OUString to an OString, using a specific text encoding. + + The lengths of the two strings may differ (e.g., for double-byte + encodings, UTF-7, UTF-8). + + @param rUnicode + an OUString to convert. + + @param encoding + the text encoding to use for conversion. + + @param convertFlags + flags which control the conversion. Either use + OUSTRING_TO_OSTRING_CVTFLAGS, or see + <http://udk.openoffice.org/cpp/man/spec/textconversion.html> for more + details. + */ +#if defined LIBO_INTERNAL_ONLY +inline OString OUStringToOString( std::u16string_view rUnicode, + rtl_TextEncoding encoding, + sal_uInt32 convertFlags = OUSTRING_TO_OSTRING_CVTFLAGS ) +{ + return OString( rUnicode.data(), rUnicode.length(), encoding, convertFlags ); +} +#else +inline OString OUStringToOString( const OUString & rUnicode, + rtl_TextEncoding encoding, + sal_uInt32 convertFlags = OUSTRING_TO_OSTRING_CVTFLAGS ) +{ + return OString( rUnicode.getStr(), rUnicode.getLength(), encoding, convertFlags ); +} +#endif + +/* ======================================================================= */ + +/** + Support for rtl::OUString in std::ostream (and thus in + CPPUNIT_ASSERT or SAL_INFO macros, for example). + + The rtl::OUString is converted to UTF-8. + + @since LibreOffice 3.5. +*/ +template< typename charT, typename traits > +inline std::basic_ostream<charT, traits> & operator <<( + std::basic_ostream<charT, traits> & stream, OUString const & rString) +{ + return stream << + OUStringToOString(rString, RTL_TEXTENCODING_UTF8); + // best effort; potentially loses data due to conversion failures + // (stray surrogate halves) and embedded null characters +} + +} // namespace + +#ifdef RTL_STRING_UNITTEST +namespace rtl +{ +typedef rtlunittest::OUString OUString; +} +#endif + +// In internal code, allow to use classes like OUString without having to +// explicitly refer to the rtl namespace, which is kind of superfluous given +// that OUString itself is namespaced by its OU prefix: +#if defined LIBO_INTERNAL_ONLY && !defined RTL_STRING_UNITTEST +using ::rtl::OUString; +using ::rtl::OUStringHash; +using ::rtl::OStringToOUString; +using ::rtl::OUStringToOString; +using ::rtl::OUStringLiteral; +using ::rtl::OUStringChar; +using ::rtl::OUStringConcatenation; +#endif + +/// @cond INTERNAL +/** + Make OUString hashable by default for use in STL containers. + + @since LibreOffice 6.0 +*/ +#if defined LIBO_INTERNAL_ONLY +namespace std { + +template<> +struct hash<::rtl::OUString> +{ + std::size_t operator()(::rtl::OUString const & s) const + { return std::size_t(s.hashCode()); } +}; + +} + +#endif +/// @endcond + +#endif /* _RTL_USTRING_HXX */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |