Urho3D::String Class Reference

String class. More...

#include </home/runner/work/rurho3d.github.io/rurho3d.github.io/urho3d_repo/Source/Urho3D/Container/Str.h>

Classes
struct	LongString
struct	ShortString

Public Types
using	Iterator = RandomAccessIterator< char >
using	ConstIterator = RandomAccessConstIterator< char >

Public Member Functions
	String () noexcept
	Construct empty.
	String (const String &str)
	Construct from another string.
	String (String &&str) noexcept
	Move-construct from another string.
	String (const char *str)
	Construct from a C string.
	String (char *str)
	Construct from a C string.
	String (const char *str, i32 length)
	Construct from a char array and length.
	String (const wchar_t *str)
	Construct from a null-terminated wide character array.
	String (wchar_t *str)
	Construct from a null-terminated wide character array.
	String (const WString &str)
	Construct from a wide character string.
	String (int value)
	Construct from an integer.
	String (short value)
	Construct from a short integer.
	String (long value)
	Construct from a long integer.
	String (long long value)
	Construct from a long long integer.
	String (unsigned value)
	Construct from an unsigned integer.
	String (unsigned short value)
	Construct from an unsigned short integer.
	String (unsigned long value)
	Construct from an unsigned long integer.
	String (unsigned long long value)
	Construct from an unsigned long long integer.
	String (float value)
	Construct from a float.
	String (double value)
	Construct from a double.
	String (bool value)
	Construct from a bool.
	String (char value)
	Construct from a character.
	String (char value, i32 length)
	Construct from a character and fill length.
template<class T >
	String (const T &value)
	Construct from a convertible value.
	~String ()
	Destruct.
String &	operator= (const String &rhs)
	Assign a string.
String &	operator= (String &&rhs) noexcept
	Move-assign a string.
String &	operator= (const char *rhs)
	Assign a C string.
String &	operator+= (const String &rhs)
	Add-assign a string.
String &	operator+= (const char *rhs)
	Add-assign a C string.
String &	operator+= (char rhs)
	Add-assign a character.
String &	operator+= (int rhs)
	Add-assign (concatenate as string) an integer.
String &	operator+= (short rhs)
	Add-assign (concatenate as string) a short integer.
String &	operator+= (long rhs)
	Add-assign (concatenate as string) a long integer.
String &	operator+= (long long rhs)
	Add-assign (concatenate as string) a long long integer.
String &	operator+= (unsigned rhs)
	Add-assign (concatenate as string) an unsigned integer.
String &	operator+= (unsigned short rhs)
	Add-assign (concatenate as string) a short unsigned integer.
String &	operator+= (unsigned long rhs)
	Add-assign (concatenate as string) a long unsigned integer.
String &	operator+= (unsigned long long rhs)
	Add-assign (concatenate as string) a long long unsigned integer.
String &	operator+= (float rhs)
	Add-assign (concatenate as string) a float.
String &	operator+= (bool rhs)
	Add-assign (concatenate as string) a bool.
template<class T >
String &	operator+= (const T &rhs)
	Add-assign (concatenate as string) an arbitrary type.
String	operator+ (const String &rhs) const
	Add a string.
String	operator+ (const char *rhs) const
	Add a C string.
bool	operator== (const String &rhs) const
	Test for equality with another string.
bool	operator!= (const String &rhs) const
	Test for inequality with another string.
bool	operator< (const String &rhs) const
	Test if string is less than another string.
bool	operator> (const String &rhs) const
	Test if string is greater than another string.
bool	operator== (const char *rhs) const
	Test for equality with a C string.
bool	operator!= (const char *rhs) const
	Test for inequality with a C string.
bool	operator< (const char *rhs) const
	Test if string is less than a C string.
bool	operator> (const char *rhs) const
	Test if string is greater than a C string.
char &	operator[] (i32 index)
	Return char at index.
const char &	operator[] (i32 index) const
	Return const char at index.
char &	At (i32 index)
	Return char at index.
const char &	At (i32 index) const
	Return const char at index.
void	Replace (char replaceThis, char replaceWith, bool caseSensitive=true)
	Replace all occurrences of a character.
void	Replace (const String &replaceThis, const String &replaceWith, bool caseSensitive=true)
	Replace all occurrences of a string.
void	Replace (i32 pos, i32 length, const String &replaceWith)
	Replace a substring.
void	Replace (i32 pos, i32 length, const char *replaceWith)
	Replace a substring with a C string.
Iterator	Replace (const Iterator &start, const Iterator &end, const String &replaceWith)
	Replace a substring by iterators.
String	Replaced (char replaceThis, char replaceWith, bool caseSensitive=true) const
	Return a string with all occurrences of a character replaced.
String	Replaced (const String &replaceThis, const String &replaceWith, bool caseSensitive=true) const
	Return a string with all occurrences of a string replaced.
String &	Append (const String &str)
	Append a string.
String &	Append (const char *str)
	Append a C string.
String &	Append (char c)
	Append a character.
String &	Append (const char *str, i32 length)
	Append characters.
void	Insert (i32 pos, const String &str)
	Insert a string.
void	Insert (i32 pos, char c)
	Insert a character.
Iterator	Insert (const Iterator &dest, const String &str)
	Insert a string by iterator.
Iterator	Insert (const Iterator &dest, const Iterator &start, const Iterator &end)
	Insert a string partially by iterators.
Iterator	Insert (const Iterator &dest, char c)
	Insert a character by iterator.
void	Erase (i32 pos, i32 length=1)
	Erase a substring.
Iterator	Erase (const Iterator &it)
	Erase a character by iterator.
Iterator	Erase (const Iterator &start, const Iterator &end)
	Erase a substring by iterators.
void	Resize (i32 newLength)
	Resize the string. Can increase capacity, but never decrease.
void	Reserve (i32 newCapacity)
	Set new capacity. New capacity may differ from requested.
void	Compact ()
	Reallocate so that no extra memory is used.
void	Clear ()
	Clear the string.
void	Swap (String &str)
	Swap with another string.
Iterator	Begin ()
	Return iterator to the beginning.
ConstIterator	Begin () const
	Return const iterator to the beginning.
Iterator	End ()
	Return iterator to the end.
ConstIterator	End () const
	Return const iterator to the end.
char	Front () const
	Return first char, or 0 if empty.
char	Back () const
	Return last char, or 0 if empty.
String	Substring (i32 pos) const
	Return a substring from position to end.
String	Substring (i32 pos, i32 length) const
	Return a substring with length from position.
String	Trimmed () const
	Return string with whitespace trimmed from the beginning and the end.
String	ToUpper () const
	Return string in uppercase.
String	ToLower () const
	Return string in lowercase.
Vector< String >	Split (char separator, bool keepEmptyStrings=false) const
	Return substrings split by a separator char. By default don't return empty strings.
void	Join (const Vector< String > &subStrings, const String &glue)
	Join substrings with a 'glue' string.
i32	Find (const String &str, i32 startPos=0, bool caseSensitive=true) const
	Return index to the first occurrence of a string, or NPOS if not found.
i32	Find (char c, i32 startPos=0, bool caseSensitive=true) const
	Return index to the first occurrence of a character, or NPOS if not found.
i32	FindLast (const String &str, i32 startPos=NPOS, bool caseSensitive=true) const
	Return index to the last occurrence of a string, or NPOS if not found.
i32	FindLast (char c, i32 startPos=NPOS, bool caseSensitive=true) const
	Return index to the last occurrence of a character, or NPOS if not found.
bool	StartsWith (const String &str, bool caseSensitive=true) const
	Return whether starts with a string.
bool	EndsWith (const String &str, bool caseSensitive=true) const
	Return whether ends with a string.
char *	GetBuffer ()
	Return pointer to buffer.
const char *	GetBuffer () const
	Return pointer to buffer.
const char *	CString () const
	Return the C string.
i32	Length () const
	Return length.
i32	Capacity () const
	Return buffer capacity.
bool	Empty () const
	Return whether the string is empty.
int	Compare (const String &str, bool caseSensitive=true) const
	Return comparison result with a string.
int	Compare (const char *str, bool caseSensitive=true) const
	Return comparison result with a C string.
bool	Contains (const String &str, bool caseSensitive=true) const
	Return whether contains a specific occurrence of a string.
bool	Contains (char c, bool caseSensitive=true) const
	Return whether contains a specific character.
void	SetUTF8FromLatin1 (const char *str)
	Construct UTF8 content from Latin1.
void	SetUTF8FromWChar (const wchar_t *str)
	Construct UTF8 content from wide characters.
i32	LengthUTF8 () const
	Calculate number of characters in UTF8 content.
i32	ByteOffsetUTF8 (i32 index) const
	Return byte offset to char in UTF8 content.
c32	NextUTF8Char (i32 &byteOffset) const
	Return next Unicode character from UTF8 content and increase byte offset.
c32	AtUTF8 (i32 index) const
	Return Unicode character at index from UTF8 content.
void	ReplaceUTF8 (i32 index, c32 unicodeChar)
	Replace Unicode character at index from UTF8 content.
String &	AppendUTF8 (c32 unicodeChar)
	Append Unicode character at the end as UTF8.
String	SubstringUTF8 (i32 pos) const
	Return a UTF8 substring from position to end.
String	SubstringUTF8 (i32 pos, i32 length) const
	Return a UTF8 substring with length from position.
hash32	ToHash () const
	Return hash value for HashSet & HashMap.
String &	AppendWithFormat (const char *formatString,...)
	Append to string using formatting.
String &	AppendWithFormatArgs (const char *formatString, va_list args)
	Append to string using variable arguments.
bool	IsShort () const
	Is the string stored on the stack?

Static Public Member Functions
static Vector< String >	Split (const char *str, char separator, bool keepEmptyStrings=false)
	Return substrings split by a separator char. By default don't return empty strings.
static String	Joined (const Vector< String > &subStrings, const String &glue)
	Return a string by joining substrings with a 'glue' string.
static void	EncodeUTF8 (char *&dest, c32 unicodeChar)
	Encode Unicode character to UTF8. Pointer will be incremented.
static c32	DecodeUTF8 (const char *&src)
	Decode Unicode character from UTF8. Pointer will be incremented.
static i32	CStringLength (const char *str)
	Return length of a C string.
static int	Compare (const char *lhs, const char *rhs, bool caseSensitive)
	Compare two C strings.

Static Public Attributes
static constexpr i32	NPOS = -1
	Position for "not found".
static const String	EMPTY
	Empty string.

Private Member Functions
i32	GetShortStringLength () const
void	SetShortStringLength (u8 value)
void	MoveRange (i32 dest, i32 src, i32 count)
	Move a range of characters within the string.
void	Replace (i32 pos, i32 length, const char *srcStart, i32 srcLength)
	Replace a substring with another substring.

Static Private Member Functions
static void	CopyChars (char *dest, const char *src, i32 count)
	Copy chars from one buffer to another.

Private Attributes
union {
LongString   longString_
ShortString   shortString_
}	data_

Static Private Attributes
static constexpr i32	SHORT_STRING_CAPACITY = sizeof(LongString) - 1
	11 bytes on 32-bit platform, 15 bytes on 64-bit platform
static constexpr u8	SSO_MASK = 0b10000000u
	MSB of the last byte is used as a flag.
static constexpr u8	INVERTED_SSO_MASK = static_cast<u8>(~SSO_MASK)

Detailed Description

String class.

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

• /home/runner/work/rurho3d.github.io/rurho3d.github.io/urho3d_repo/Source/Urho3D/Container/Str.h
• /home/runner/work/rurho3d.github.io/rurho3d.github.io/urho3d_repo/Source/Urho3D/Container/Str.cpp