edu.cmu.sphinx.linguist.language.grammar

Class SimpleWordListGrammar

java.lang.Object

edu.cmu.sphinx.linguist.language.grammar.Grammar

edu.cmu.sphinx.linguist.language.grammar.SimpleWordListGrammar

All Implemented Interfaces:

GrammarInterface, Configurable

public class SimpleWordListGrammar
extends Grammar
implements Configurable

Defines a grammar based upon a list of words in a file. The format of the file is just one word per line. For example, for an isolated digits grammar the file will simply look like:

 zero
 one
 two
 three
 four
 five
 six
 seven
 eight
 nine
 

The path to the file is defined by the PROP_PATH property. If the PROP_LOOP property is true, the grammar created will be a looping grammar. Using the above digits grammar example, setting PROP_LOOP to true will make it a connected-digits grammar.

All probabilities are maintained in LogMath log base.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROP_LOOP The property that if true, indicates that this is a looping grammar
static java.lang.String	PROP_PATH The property that defines the location of the word list grammar

Fields inherited from class edu.cmu.sphinx.linguist.language.grammar.Grammar

dictionary, initialNode, logger, PROP_ADD_FILLER_WORDS, PROP_ADD_SIL_WORDS, PROP_DICTIONARY, PROP_OPTIMIZE_GRAMMAR, PROP_SHOW_GRAMMAR

Constructor Summary

Constructors

Constructor and Description
SimpleWordListGrammar()
SimpleWordListGrammar(java.lang.String path, boolean isLooping, boolean showGrammar, boolean optimizeGrammar, boolean addSilenceWords, boolean addFillerWords, Dictionary dictionary)

Method Summary

Modifier and Type	Method and Description
protected GrammarNode	createGrammar() Creates the grammar.
protected GrammarNode	createGrammar(java.lang.String bogusText) Create class from reference text (not implemented).
void	newProperties(PropertySheet ps) This method is called when this configurable component needs to be reconfigured.

Methods inherited from class edu.cmu.sphinx.linguist.language.grammar.Grammar

allocate, createGrammarNode, createGrammarNode, createGrammarNode, createGrammarNode, createGrammarNode, deallocate, dumpGrammar, dumpRandomSentences, dumpRandomSentences, dumpStatistics, getDictionary, getGrammarNodes, getInitialNode, getNumNodes, getRandomSentence, newGrammar, postProcessGrammar

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PROP_PATH

@S4String(defaultValue="spelling.gram")
public static final java.lang.String PROP_PATH

The property that defines the location of the word list grammar

See Also:

Constant Field Values

PROP_LOOP

@S4Boolean(defaultValue=true)
public static final java.lang.String PROP_LOOP

The property that if true, indicates that this is a looping grammar

See Also:

Constant Field Values

Constructor Detail

SimpleWordListGrammar

public SimpleWordListGrammar(java.lang.String path,
                             boolean isLooping,
                             boolean showGrammar,
                             boolean optimizeGrammar,
                             boolean addSilenceWords,
                             boolean addFillerWords,
                             Dictionary dictionary)

SimpleWordListGrammar

public SimpleWordListGrammar()

Method Detail

newProperties

public void newProperties(PropertySheet ps)
                   throws PropertyException

Description copied from interface: Configurable

This method is called when this configurable component needs to be reconfigured.

Specified by:

newProperties in interface Configurable

Overrides:

newProperties in class Grammar

Parameters:

ps - a property sheet holding the new data

Throws:

PropertyException - if there is a problem with the properties.

createGrammar

protected GrammarNode createGrammar(java.lang.String bogusText)
                             throws java.lang.NoSuchMethodException

Create class from reference text (not implemented).

Overrides:

createGrammar in class Grammar

Parameters:

bogusText - dummy variable

Returns:

created grammar node

Throws:

java.lang.NoSuchMethodException - if called with reference sentence

createGrammar

protected GrammarNode createGrammar()
                             throws java.io.IOException

Creates the grammar.

Specified by:

createGrammar in class Grammar

Returns:

the initial node for the grammar

Throws:

java.io.IOException - if the grammar could not be loaded