Char Class Reference

#include <Pt/String.h>

Unicode character type. More...

Public Member Functions
	Char ()
	Default Constructor.
	Char (char ch)
	Construct from char.
	Char (int val)
	Construct from int.
	Char (uint32_t val)
	Construct from unsigned 32-bit integer.
char	narrow (char def= '?') const
	Narrows the character to 8-bit. More...
	operator uint32_t () const
	Returns the unicode value.
Char &	operator= (const Char &ch)
	Assignment operator.
uint32_t	value () const
	Returns the unicode value.

Related Functions
int	isalnum (const Char &ch)
	Checks whether ch is a alphanumeric character.
int	isalpha (const Char &ch)
	Checks whether ch is a alphabetic character.
int	iscntrl (const Char &ch)
	Checks whether ch is a control character.
int	isdigit (const Char &ch)
	Checks whether ch is a decimal digit.
int	isgraph (const Char &ch)
	Checks whether ch is a graphical character.
int	islower (const Char &ch)
	Checks whether ch is lower case.
int	isprint (const Char &ch)
	Checks whether ch is a printable character.
int	ispunct (const Char &ch)
	Checks whether ch is a punctuation character.
int	isspace (const Char &ch)
	Checks whether ch is a whitespace character.
int	isupper (const Char &ch)
	Checks whether ch is upper case.
int	isxdigit (const Char &ch)
	Checks whether ch is a hexadecimal digit.
Char	tolower (const Char &ch)
	Convert a character to lower case.
Char	toupper (const Char &ch)
	Convert a character to upper case.

Detailed Description

The unicode character type Pt::Char can directly represent a unicode code point. It is used as the character type for Pt::String or Pt::StringStream. Characters can be classified or transformed using a set of functions similar to what can be found in the cctype header of the standard library:

Pt::Char ch = 'a';

// check character category
assert( isalpha(ch) );
assert( islower(ch) );

// convert to upper case
Pt::Char ch2 = toupper(ch);
assert( isupper(ch) );

Member Function Documentation

char narrow

(

char

def = '?'

)

const

The default character def is returned if the unicode value is too large to be narrowed to char i.e. greater than 255.