NCollection_UtfString< Type > Class Template Reference

This template class represent constant UTF-* string. String stored in memory continuously, always NULL-terminated and can be used as standard C-string using ToCString() method. More...

#include <NCollection_UtfString.hxx>

Public Member Functions
NCollection_UtfIterator< Type >	Iterator () const
int	Size () const noexcept
int	Length () const noexcept
char32_t	GetChar (const int theCharIndex) const
	Retrieve Unicode symbol at specified position. Warning! This is a slow access. Iterator should be used for consecutive parsing.
const Type *	GetCharBuffer (const int theCharIndex) const
	Retrieve string buffer at specified position. Warning! This is a slow access. Iterator should be used for consecutive parsing.
char32_t	operator[] (const int theCharIndex) const
	Retrieve Unicode symbol at specified position. Warning! This is a slow access. Iterator should be used for consecutive parsing.
	NCollection_UtfString ()
	Initialize empty string.
	NCollection_UtfString (const NCollection_UtfString &theCopy)
	Copy constructor.
	NCollection_UtfString (NCollection_UtfString &&theOther) noexcept
	Move constructor.
	NCollection_UtfString (const char *theCopyUtf8, const int theLength=-1)
	Copy constructor from UTF-8 string.
	NCollection_UtfString (const char16_t *theCopyUtf16, const int theLength=-1)
	Copy constructor from UTF-16 string.
	NCollection_UtfString (const char32_t *theCopyUtf32, const int theLength=-1)
	Copy constructor from UTF-32 string.
	NCollection_UtfString (const wchar_t *theCopyUtfWide, const int theLength=-1)
	Copy constructor from wide UTF string.
template<typename TypeFrom>
void	FromUnicode (const TypeFrom *theStringUtf, const int theLength=-1)
	Copy from Unicode string in UTF-8, UTF-16, or UTF-32 encoding, determined by size of TypeFrom character type.
void	FromLocale (const char *theString, const int theLength=-1)
	Copy from multibyte string in current system locale.
	~NCollection_UtfString ()
	Destructor.
bool	IsEqual (const NCollection_UtfString &theCompare) const noexcept
	Compares this string with another one.
NCollection_UtfString	SubString (const int theStart, const int theEnd) const
	Returns the substring.
const Type *	ToCString () const noexcept
	Returns NULL-terminated Unicode string. Should not be modified or deleted!
const NCollection_UtfString< char >	ToUtf8 () const
const NCollection_UtfString< char16_t >	ToUtf16 () const
const NCollection_UtfString< char32_t >	ToUtf32 () const
const NCollection_UtfString< wchar_t >	ToUtfWide () const
bool	ToLocale (char *theBuffer, const int theSizeBytes) const
	Converts the string into string in the current system locale.
bool	IsEmpty () const noexcept
void	Clear ()
	Zero string.
compare operators
bool	operator== (const NCollection_UtfString &theCompare) const noexcept
bool	operator!= (const NCollection_UtfString &theCompare) const noexcept

assign operators
Copy from another string.
const NCollection_UtfString &	Assign (const NCollection_UtfString &theOther)
	Exchange the data of two strings (without reallocating memory).
void	Swap (NCollection_UtfString &theOther) noexcept
	Exchange the data of two strings (without reallocating memory).
const NCollection_UtfString &	operator= (const NCollection_UtfString &theOther)
	Copy from another string.
NCollection_UtfString &	operator= (NCollection_UtfString &&theOther)
	Move assignment operator.
const NCollection_UtfString &	operator= (const char *theStringUtf8)
	Copy from UTF-8 NULL-terminated string.
const NCollection_UtfString &	operator= (const wchar_t *theStringUtfWide)
	Copy from wchar_t UTF NULL-terminated string.
NCollection_UtfString &	operator+= (const NCollection_UtfString &theAppend)
	Join strings.

Detailed Description

template<typename Type>
class NCollection_UtfString< Type >

This template class represent constant UTF-* string. String stored in memory continuously, always NULL-terminated and can be used as standard C-string using ToCString() method.

Notice that changing the string is not allowed and any modifications should produce new string.

In comments to this class, terms "Unicode symbol" is used as synonym of "Unicode code point".

Constructor & Destructor Documentation

NCollection_UtfString() [1/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString

(

)

Initialize empty string.

NCollection_UtfString() [2/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString

(

const NCollection_UtfString< Type > &

theCopy

)

Copy constructor.

Parameters

theCopy

string to copy.

NCollection_UtfString() [3/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString ( NCollection_UtfString< Type > && theOther )

noexcept

Move constructor.

NCollection_UtfString() [4/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString	(	const char *	theCopyUtf8,
		const int	theLength = -1 )

Copy constructor from UTF-8 string.

Parameters

theCopyUtf8	UTF-8 string to copy
theLength	optional length limit in Unicode symbols (NOT bytes!) The string is copied till NULL symbol or, if theLength >0, till either NULL or theLength-th symbol (which comes first).

NCollection_UtfString() [5/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString	(	const char16_t *	theCopyUtf16,
		const int	theLength = -1 )

Copy constructor from UTF-16 string.

Parameters

theCopyUtf16	UTF-16 string to copy
theLength	the length limit in Unicode symbols (NOT bytes!) The string is copied till NULL symbol or, if theLength >0, till either NULL or theLength-th symbol (which comes first).

NCollection_UtfString() [6/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString	(	const char32_t *	theCopyUtf32,
		const int	theLength = -1 )

Copy constructor from UTF-32 string.

Parameters

theCopyUtf32	UTF-32 string to copy
theLength	the length limit in Unicode symbols (NOT bytes!) The string is copied till NULL symbol or, if theLength >0, till either NULL or theLength-th symbol (which comes first).

NCollection_UtfString() [7/7]

template<typename Type>

NCollection_UtfString< Type >::NCollection_UtfString	(	const wchar_t *	theCopyUtfWide,
		const int	theLength = -1 )

Copy constructor from wide UTF string.

Parameters

theCopyUtfWide	wide UTF string to copy
theLength	the length limit in Unicode symbols (NOT bytes!) The string is copied till NULL symbol or, if theLength >0, till either NULL or theLength-th symbol (which comes first).

This constructor is undefined if wchar_t is the same type as char16_t.

~NCollection_UtfString()

template<typename Type>

NCollection_UtfString< Type >::~NCollection_UtfString

(

)

Destructor.

Member Function Documentation

Assign()

template<typename Type>

const NCollection_UtfString & NCollection_UtfString< Type >::Assign

(

const NCollection_UtfString< Type > &

theOther

)

Exchange the data of two strings (without reallocating memory).

Clear()

template<typename Type>

void NCollection_UtfString< Type >::Clear

(

)

Zero string.

FromLocale()

template<typename Type>

void NCollection_UtfString< Type >::FromLocale	(	const char *	theString,
		const int	theLength = -1 )

Copy from multibyte string in current system locale.

Parameters

theString	multibyte string
theLength	the length limit in Unicode symbols The string is copied till NULL symbol or, if theLength >0, till either NULL or theLength-th symbol (which comes first).

FromUnicode()

template<typename Type>

template<typename TypeFrom>

void NCollection_UtfString< Type >::FromUnicode ( const TypeFrom * theStringUtf, const int theLength = -1 )

inline

Copy from Unicode string in UTF-8, UTF-16, or UTF-32 encoding, determined by size of TypeFrom character type.

Parameters

theStringUtf	Unicode string
theLength	the length limit in Unicode symbols The string is copied till NULL symbol or, if theLength >0, till either NULL or theLength-th symbol (which comes first).

GetChar()

template<typename Type>

char32_t NCollection_UtfString< Type >::GetChar

(

const int

theCharIndex

)

const

Retrieve Unicode symbol at specified position. Warning! This is a slow access. Iterator should be used for consecutive parsing.

Parameters

theCharIndex

the index of the symbol, should be lesser than Length()

Returns

the Unicode symbol value

GetCharBuffer()

template<typename Type>

const Type * NCollection_UtfString< Type >::GetCharBuffer

(

const int

theCharIndex

)

const

Retrieve string buffer at specified position. Warning! This is a slow access. Iterator should be used for consecutive parsing.

Parameters

theCharIndex

the index of the symbol, should be less than Length() (first symbol of the string has index 0)

Returns

the pointer to the symbol

IsEmpty()

template<typename Type>

bool NCollection_UtfString< Type >::IsEmpty ( ) const

inlinenoexcept

Returns

true if string is empty

IsEqual()

template<typename Type>

bool NCollection_UtfString< Type >::IsEqual ( const NCollection_UtfString< Type > & theCompare ) const

noexcept

Compares this string with another one.

Iterator()

template<typename Type>

NCollection_UtfIterator< Type > NCollection_UtfString< Type >::Iterator ( ) const

inline

Length()

template<typename Type>

int NCollection_UtfString< Type >::Length ( ) const

inlinenoexcept

Returns

the length of the string in Unicode symbols

operator!=()

template<typename Type>

bool NCollection_UtfString< Type >::operator!= ( const NCollection_UtfString< Type > & theCompare ) const

noexcept

operator+=()

template<typename Type>

NCollection_UtfString & NCollection_UtfString< Type >::operator+=

(

const NCollection_UtfString< Type > &

theAppend

)

Join strings.

operator=() [1/4]

template<typename Type>

const NCollection_UtfString & NCollection_UtfString< Type >::operator=

(

const char *

theStringUtf8

)

Copy from UTF-8 NULL-terminated string.

operator=() [2/4]

template<typename Type>

const NCollection_UtfString & NCollection_UtfString< Type >::operator= ( const NCollection_UtfString< Type > & theOther )

inline

Copy from another string.

operator=() [3/4]

template<typename Type>

const NCollection_UtfString & NCollection_UtfString< Type >::operator=

(

const wchar_t *

theStringUtfWide

)

Copy from wchar_t UTF NULL-terminated string.

operator=() [4/4]

template<typename Type>

NCollection_UtfString & NCollection_UtfString< Type >::operator= ( NCollection_UtfString< Type > && theOther )

inline

Move assignment operator.

operator==()

template<typename Type>

bool NCollection_UtfString< Type >::operator== ( const NCollection_UtfString< Type > & theCompare ) const

inlinenoexcept

operator[]()

template<typename Type>

char32_t NCollection_UtfString< Type >::operator[] ( const int theCharIndex ) const

inline

Retrieve Unicode symbol at specified position. Warning! This is a slow access. Iterator should be used for consecutive parsing.

Size()

template<typename Type>

int NCollection_UtfString< Type >::Size ( ) const

inlinenoexcept

Returns

the size of the buffer in bytes, excluding NULL-termination symbol

SubString()

template<typename Type>

NCollection_UtfString NCollection_UtfString< Type >::SubString	(	const int	theStart,
		const int	theEnd ) const

Returns the substring.

Parameters

theStart	start index (inclusive) of subString
theEnd	end index (exclusive) of subString

Returns

the substring

Swap()

template<typename Type>

void NCollection_UtfString< Type >::Swap ( NCollection_UtfString< Type > & theOther )

noexcept

Exchange the data of two strings (without reallocating memory).

ToCString()

template<typename Type>

const Type * NCollection_UtfString< Type >::ToCString ( ) const

inlinenoexcept

Returns NULL-terminated Unicode string. Should not be modified or deleted!

Returns

(const Type* ) pointer to string

ToLocale()

template<typename Type>

bool NCollection_UtfString< Type >::ToLocale	(	char *	theBuffer,
		const int	theSizeBytes ) const

Converts the string into string in the current system locale.

Parameters

theBuffer	output buffer
theSizeBytes	buffer size in bytes

Returns

true on success

ToUtf16()

template<typename Type>

const NCollection_UtfString< char16_t > NCollection_UtfString< Type >::ToUtf16

(

)

const

Returns

copy in UTF-16 format

ToUtf32()

template<typename Type>

const NCollection_UtfString< char32_t > NCollection_UtfString< Type >::ToUtf32

(

)

const

Returns

copy in UTF-32 format

ToUtf8()

template<typename Type>

const NCollection_UtfString< char > NCollection_UtfString< Type >::ToUtf8

(

)

const

Returns

copy in UTF-8 format

ToUtfWide()

template<typename Type>

const NCollection_UtfString< wchar_t > NCollection_UtfString< Type >::ToUtfWide

(

)

const

Returns

copy in wide format (UTF-16 on Windows and UTF-32 on Linux)

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The documentation for this class was generated from the following file:

• NCollection_UtfString.hxx