/* -*- 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.
*/
// 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
/** 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");
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));
}
public: // (Data members must be public so that OUStringLiteral is a structural type that can be used as // a non-type template parameter type for operator ""_ustr:) union {
rtl_uString str;
Data more = {};
};
};
/** 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.
*/
/** New string containing no characters.
*/
OUString()
{
pData = NULL;
rtl_uString_new( &pData );
}
/** New string from OUString.
@param str an OUString.
*/ #ifdefined LIBO_INTERNAL_ONLY && !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED)
constexpr #endif
OUString( const OUString & str )
{
pData = str.pData; #ifdefined LIBO_INTERNAL_ONLY && !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED) if (std::is_constant_evaluated()) { //TODO: We would want to // // assert(SAL_STRING_IS_STATIC(pData)); // // here, but that wouldn't work because read of member `str` of OUStringLiteral's // anonymous union with active member `more` is not allowed in a constant expression.
} else #endif
rtl_uString_acquire( pData );
}
@param str an OUString. @since LibreOffice 5.2
*/ #if !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED)
constexpr #endif
OUString( OUString && str ) noexcept
{
pData = str.pData; #if !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED) if (std::is_constant_evaluated()) { //TODO: We would want to // // assert(SAL_STRING_IS_STATIC(pData)); // // here, but that wouldn't work because read of member `str` of OUStringLiteral's // anonymous union with active member `more` is not allowed in a constant expression. return;
} #endif
str.pData = nullptr;
rtl_uString_new( &str.pData );
} #endif #endif
/** 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.
#ifdefined LIBO_INTERNAL_ONLY // Rather use a u""_ustr literal (but don't remove this entirely, to avoid implicit support for // it via std::u16string_view from kicking in): template<typename T> OUString(
T &, typename libreoffice_internal::ConstCharArrayDetector<
T, libreoffice_internal::Dummy>::TypeUtf16
= libreoffice_internal::Dummy()) = delete;
/** 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_...
/** 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.
/** Release the string data.
*/ #ifdefined LIBO_INTERNAL_ONLY && !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED)
constexpr #endif
~OUString()
{ #ifdefined LIBO_INTERNAL_ONLY && !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED) if (std::is_constant_evaluated()) { //TODO: We would want to // // assert(SAL_STRING_IS_STATIC(pData)); // // here, but that wouldn't work because read of member `str` of OUStringLiteral's // anonymous union with active member `more` is not allowed in a constant expression.
} else #endif
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 ); }
#ifdefined 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 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.
#ifdefined LIBO_INTERNAL_ONLY // Rather assign from a u""_ustr literal (but don't remove this entirely, to avoid implicit // support for it via std::u16string_view from kicking in): template<typename T> typename
libreoffice_internal::ConstCharArrayDetector<T, OUString &>::TypeUtf16 operator =(T &) = delete;
template <std::size_t N>
OUString & operator =(OUStringNumber<N> && 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;
}
/** 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.
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
*/ #ifdefined 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
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
*/ #ifdefined 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 ) returnfalse; if ( pData == str.pData ) returntrue; 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.
*/ #ifdefined LIBO_INTERNAL_ONLY bool equalsIgnoreAsciiCase(std::u16string_view sv) const { if ( sal_uInt32(pData->length) != sv.size() ) returnfalse; if ( pData->buffer == sv.data() ) returntrue; 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 ) returnfalse; if ( pData == str.pData ) returntrue; 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
/** @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.
*/ #ifdefined LIBO_INTERNAL_ONLY bool match(std::u16string_view sv, sal_Int32 fromIndex = 0) const {
assert(fromIndex >= 0); 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
{
assert(fromIndex >= 0); 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));
assert(fromIndex >= 0); 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.
*/ #ifdefined LIBO_INTERNAL_ONLY bool matchIgnoreAsciiCase(std::u16string_view sv, sal_Int32 fromIndex = 0) const {
assert(fromIndex >= 0); 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
{
assert(fromIndex >= 0); 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( constchar* 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( constchar * 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 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( constchar * 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( constchar* 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 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( constchar* asciiStr, sal_Int32 asciiStrLength ) const
{ if ( pData->length != asciiStrLength ) returnfalse;
/** 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( constchar * asciiStr ) const
{ return rtl_ustr_ascii_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length, asciiStr ) == 0;
}
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
/** 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 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( constchar * asciiStr, sal_Int32 asciiStrLength ) const
{ if ( pData->length != asciiStrLength ) returnfalse;
/** 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 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( constchar* asciiStr, sal_Int32 asciiStrLength, sal_Int32 fromIndex = 0 ) const
{
assert(fromIndex >= 0); 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(charconst *, 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 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( constchar* asciiStr, sal_Int32 asciiStrLength, sal_Int32 fromIndex = 0 ) const
{
assert(fromIndex >= 0); 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(charconst *, sal_Int32, rtl_TextEncoding) const; #endif
#ifdefined LIBO_INTERNAL_ONLY /** Check whether this string starts with a given substring.
@param str the substring to be compared
@return true if and only if the given str appears as a substring at the start of this string
@since LibreOffice 4.0
*/ bool startsWith(std::u16string_view sv) const { return match(sv);
} /** Check whether this string starts with a given substring.
@param str the substring to be compared
@param rest if 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
*/ bool startsWith(std::u16string_view sv, OUString * rest) const {
assert(rest); autoconst b = startsWith(sv); if (b) {
*rest = copy(sv.size());
} return b;
} /** Check whether this string starts with a given substring.
@param str the substring to be compared
@param rest if this function returns true, then assign a copy of the remainder of this string to *rest.
@return true if and only if the given str appears as a substring at the start of this string
@since LibreOffice 25.2
*/ bool startsWith(std::u16string_view sv, std::u16string_view * rest) const {
assert(rest); autoconst b = startsWith(sv); if (b) {
*rest = subView(sv.size());
} return b;
} #else /** 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
#ifdefined LIBO_INTERNAL_ONLY /** This function accepts an ASCII string literal as its argument. @since LibreOffice 25.2
*/ template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type startsWith(
T & literal) 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); return b;
} /** @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) const
{
assert(rest); bool b = startsWith(literal); if (b) {
*rest = copy(
libreoffice_internal::ConstCharArrayDetector<T>::length);
} return b;
} /** This function accepts an ASCII string literal as its argument. @since LibreOffice 25.2
*/ template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type startsWith(
T & literal, std::u16string_view * rest) const
{
assert(rest); bool b = startsWith(literal); if (b) {
*rest = subView(
libreoffice_internal::ConstCharArrayDetector<T>::length);
} return b;
} #else /** @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;
} #endif
/** 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")
#ifdefined LIBO_INTERNAL_ONLY /** @overload This function accepts an ASCII string literal as its argument. @since LibreOffice 25.2
*/ template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type
endsWith(T & literal) 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); return b;
} template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type
endsWith(T & literal, OUString * rest) const
{
assert(rest); bool b = endsWith(literal); if (b) {
*rest = copy(
0,
(getLength()
- libreoffice_internal::ConstCharArrayDetector<T>::length));
} return b;
} template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type
endsWith(T & literal, std::u16string_view * rest) const
{
assert(rest); bool b = endsWith(literal); if (b) {
*rest = subView(
0,
(getLength()
- libreoffice_internal::ConstCharArrayDetector<T>::length));
} return b;
} #else /** @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;
} #endif
/** 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
#ifdefined LIBO_INTERNAL_ONLY /** 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 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
*/ bool endsWithIgnoreAsciiCase(std::u16string_view sv) const { return sv.size() <= sal_uInt32(pData->length)
&& matchIgnoreAsciiCase(sv, pData->length - sv.size());
} bool endsWithIgnoreAsciiCase(std::u16string_view sv, OUString * rest) const { autoconst b = endsWithIgnoreAsciiCase(sv); if (b && rest != nullptr) {
*rest = copy(0, pData->length - sv.size());
} return b;
} /** 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 this function returns true, then assign a copy of the remainder of this string to *rest.
@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 24.2
*/ bool endsWithIgnoreAsciiCase(std::u16string_view sv, std::u16string_view * rest) const{
assert(rest); autoconst b = endsWithIgnoreAsciiCase(sv); if (b) {
*rest = subView(0, pData->length - sv.size());
} return b;
} #else /** 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")
#ifdefined LIBO_INTERNAL_ONLY /** This function accepts an ASCII string literal as its argument. @since LibreOffice 25.2
*/ template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type
endsWithIgnoreAsciiCase(T & literal) 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); return b;
} /** This function accepts an ASCII string literal as its argument. @since LibreOffice 25.2
*/ template< typename T > typename libreoffice_internal::ConstCharArrayDetector< T, bool >::Type
endsWithIgnoreAsciiCase(T & literal, std::u16string_view * rest) const
{
assert(rest); bool b = endsWithIgnoreAsciiCase(literal); if (b) {
*rest = subView(
0,
(getLength()
- libreoffice_internal::ConstCharArrayDetector<T>::length));
} return b;
} #else /** @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;
} #endif
/** 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( charconst * asciiStr, sal_Int32 asciiStrLength) const
{ return asciiStrLength <= pData->length
&& (rtl_ustr_ascii_compareIgnoreAsciiCase_WithLengths(
pData->buffer + pData->length - asciiStrLength,
asciiStrLength, asciiStr, asciiStrLength)
== 0);
}
@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
{
assert(fromIndex >= 0);
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.
*/ #ifdefined LIBO_INTERNAL_ONLY
sal_Int32 indexOf(std::u16string_view sv, sal_Int32 fromIndex = 0) const {
assert(fromIndex >= 0); autoconst 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
{
assert(fromIndex >= 0);
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));
assert(fromIndex >= 0);
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.
// 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(charconst *, 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.
*/ #ifdefined 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.
*/ #ifdefined 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.
/** 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 );
}
#ifdefined 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.
/** 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
/** 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 );
}
/** 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
*/ #ifdefined 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
*/ #ifdefined 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
*/ #ifdefined 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
/** 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.
/** 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.
/** 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 );
}
@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
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.
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.
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
/** 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
@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).
/** 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.
/** * Convert an OString to an OUString, assuming that the OString is * UTF-8-encoded. * * @param rSource * an OString to convert * * @since LibreOffice 4.4
*/ #ifdefined 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"
staticauto number( int i, sal_Int16 radix = 10 )
{ return OUStringNumber<RTL_USTR_MAX_VALUEOFINT32>(rtl_ustr_valueOfInt32, i, radix);
} staticauto number( longlong ll, sal_Int16 radix = 10 )
{ return OUStringNumber<RTL_USTR_MAX_VALUEOFINT64>(rtl_ustr_valueOfInt64, ll, radix);
} staticauto number( unsignedlonglong ll, sal_Int16 radix = 10 )
{ return OUStringNumber<RTL_USTR_MAX_VALUEOFUINT64>(rtl_ustr_valueOfUInt64, ll, radix);
} staticauto number( unsignedint i, sal_Int16 radix = 10 )
{ return number( static_cast< unsignedlonglong >( i ), radix );
} staticauto number( long i, sal_Int16 radix = 10)
{ return number( static_cast< longlong >( i ), radix );
} staticauto number( unsignedlong i, sal_Int16 radix = 10 )
{ return number( static_cast< unsignedlonglong >( i ), radix );
} #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( unsignedint i, sal_Int16 radix = 10 )
{ return number( static_cast< unsignedlonglong >( i ), radix );
} /// @overload /// @since LibreOffice 4.1 static OUString number( long i, sal_Int16 radix = 10)
{ return number( static_cast< longlong >( i ), radix );
} /// @overload /// @since LibreOffice 4.1 static OUString number( unsignedlong i, sal_Int16 radix = 10 )
{ return number( static_cast< unsignedlonglong >( i ), radix );
} /// @overload /// @since LibreOffice 4.1 static OUString number( longlong 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( unsignedlonglong ll, sal_Int16 radix = 10 )
{
sal_Unicode aBuf[RTL_USTR_MAX_VALUEOFUINT64]; return OUString(aBuf, rtl_ustr_valueOfUInt64(aBuf, ll, radix));
} #endif
/** 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 )
{
rtl_uString* pNew = NULL; // Same as rtl::str::valueOfFP, used for rtl_ustr_valueOfFloat
rtl_math_doubleToUString(&pNew, NULL, 0, f, rtl_math_StringFormat_G,
RTL_USTR_MAX_VALUEOFFLOAT - SAL_N_ELEMENTS("-x.E-xxx") + 1, '.',
NULL, 0, true); if (pNew == NULL) throw std::bad_alloc();
return OUString(pNew, SAL_NO_ACQUIRE);
}
/** 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 )
{
rtl_uString* pNew = NULL; // Same as rtl::str::valueOfFP, used for rtl_ustr_valueOfDouble
rtl_math_doubleToUString(&pNew, NULL, 0, d, rtl_math_StringFormat_G,
RTL_USTR_MAX_VALUEOFDOUBLE - SAL_N_ELEMENTS("-x.E-xxx") + 1, '.',
NULL, 0, true); if (pNew == NULL) throw std::bad_alloc();
return OUString(pNew, SAL_NO_ACQUIRE);
}
#ifdef LIBO_INTERNAL_ONLY // "RTL_FAST_STRING" staticauto boolean(bool b)
{ return OUStringNumber<RTL_USTR_MAX_VALUEOFBOOLEAN>(rtl_ustr_valueOfBoolean, b);
} #else /** 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));
} #endif
/** 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( constchar * value )
{
rtl_uString* pNew = NULL;
rtl_uString_newFromAscii( &pNew, value ); return OUString( pNew, SAL_NO_ACQUIRE );
}
#ifdefined 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
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
OUStringConcat<OUStringConcatMarker, T[N]>
Concat(T (& value)[N]) { return OUStringConcat<OUStringConcatMarker, T[N]>(value); } #endif
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
{ returnstatic_cast<size_t>(rString.hashCode()); }
};
// 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: #ifdefined 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::Concat2View; using RepeatedUChar = ::rtl::RepeatedChar_t<sal_Unicode>; #endif
template<> struct hash<::rtl::OUString>
{
std::size_t operator()(::rtl::OUString const & s) const
{ if constexpr (sizeof(std::size_t) == 8)
{ // return a hash that uses the full 64-bit range instead of a 32-bit value
size_t n = s.getLength(); for (sal_Int32 i = 0, len = s.getLength(); i < len; ++i)
n = 37 * n + s[i]; return n;
} else return std::size_t(s.hashCode());
}
};
}
#if !(defined _MSC_VER && _MSC_VER <= 1929 && defined _MANAGED) /** * static empty string object, handy for returning from functions where the function is * returning a "const OUString &" * * @since LibreOffice 25.2
*/ staticinline constexpr ::rtl::OUString EMPTY_OUSTRING = u""_ustr; #endif
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