Wikimedia\LangConv\Construct\MutableFST Class Reference

A mutable FST. More...

Public Member Functions
	__construct (array $alphabet)
	Create a new MutableFST with the given alphabet.
	newState ()
	Add a new state to this FST.
	getStartState ()
	Return the start state of this FST.
	applyDown (array $input)
	Apply the given FST to the array of input tokens.
	applyUp (array $input)
	Apply the given FST to the array of input tokens.
	optimize ()
	Perform simple optimization on the FST, trimming unreachable states and attempting to combine edges containing epsilons.
	writeATT ( $handle)
	Write an AT&T format description of this FST to the given filehandle.

Public Attributes
const	EPSILON = '@0@'
	Special alphabet symbol for nothing used in AT&T format FST files.
const	UNKNOWN = '@_UNKNOWN_SYMBOL_@'
	Special alphabet symbol for upper-side ? used in AT&T format FST files.
const	IDENTITY = '@_IDENTITY_SYMBOL_@'
	Special alphabet symbol for lower-side ? used in AT&T format FST files.

Detailed Description

A mutable FST.

Constructor & Destructor Documentation

__construct()

Wikimedia\LangConv\Construct\MutableFST::__construct

(

array

$alphabet

)

Create a new MutableFST with the given alphabet.

Parameters

string[]

$alphabet

Member Function Documentation

applyDown()

Wikimedia\LangConv\Construct\MutableFST::applyDown

(

array

$input

)

Apply the given FST to the array of input tokens.

Symbols in 'upper' are matched and symbols in 'lower' are emitted.

Parameters

string[]

$input

Returns

array<array<string>>

applyUp()

Wikimedia\LangConv\Construct\MutableFST::applyUp

(

array

$input

)

Apply the given FST to the array of input tokens.

Symbols in 'lower' are matched and symbols in 'upper' are emitted.

Parameters

string[]

$input

Returns

array<array<string>>

getStartState()

Wikimedia\LangConv\Construct\MutableFST::getStartState

(

)

Return the start state of this FST.

Returns

State the start state.

newState()

Wikimedia\LangConv\Construct\MutableFST::newState

(

)

Add a new state to this FST.

Returns

State the new state.

writeATT()

Wikimedia\LangConv\Construct\MutableFST::writeATT

(

$handle

)

Write an AT&T format description of this FST to the given filehandle.

Parameters

resource

$handle

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

• src/Construct/MutableFST.php