InfiniteAlphabet Class Reference

Implements an infinite size alphabet. More...

#include <Alphabet.h>

Inheritance diagram for InfiniteAlphabet:

List of all members.

Public Member Functions
	InfiniteAlphabet (string pref=string("x"))
	Constructor.
int	getNum (const string &letter) const
	Implements the conversion from a letter name into its corresponding index.
string	getLetter (int index) const
	Returns the name of the letter with a given index.
Static Public Attributes
static InfiniteAlphabet	defaultAlphabet
	Static instance of the default alphabet x_1, x_2, ...
Private Attributes
string	thePrefix
Friends
ostream &	operator<< (ostream &out, const InfiniteAlphabet &a)
	Output the alphabet into a stream.

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Detailed Description

Implements an infinite size alphabet.

Definition at line 153 of file Alphabet.h.

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Constructor & Destructor Documentation

InfiniteAlphabet::InfiniteAlphabet

(

string

pref = string("x")

)

[inline]

Constructor.

Parameters:

pref

- prefix to be used for letter names. By defalut the letter 'x' is used. In general letter names defined by appending the corresponding index to the prefix, i.e. <prefix><index>.

Definition at line 162 of file Alphabet.h.

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Member Function Documentation

string InfiniteAlphabet::getLetter

(

int

index

)

const [virtual]

Returns the name of the letter with a given index.

Parameters:

index

- the index of a letter from the alphabet

Returns:

the name of the letter with index index

Implements Alphabet.

int InfiniteAlphabet::getNum

(

const string &

letter

)

const [virtual]

Implements the conversion from a letter name into its corresponding index.

Parameters:

letter

- the name of a letter

Returns:

letter index in the alphabet. If cannot match the letter, 0 is returned.

Implements Alphabet.

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Friends And Related Function Documentation

ostream& operator<<	(	ostream &	out,
		const InfiniteAlphabet &	a
	)			[friend]

Output the alphabet into a stream.

Definition at line 183 of file Alphabet.h.

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Member Data Documentation

InfiniteAlphabet InfiniteAlphabet::defaultAlphabet [static]

Static instance of the default alphabet x_1, x_2, ...

Definition at line 180 of file Alphabet.h.

Referenced by Word::printOn().

string InfiniteAlphabet::thePrefix [private]

Definition at line 193 of file Alphabet.h.

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

• Alphabet/include/Alphabet.h