joshua.decoder.ff.lm.ArpaFile Class Reference

Collaboration diagram for joshua.decoder.ff.lm.ArpaFile:

List of all members.

Public Member Functions
	ArpaFile (String arpaFileName) throws IOException
int	size ()
int	getOrder () throws FileNotFoundException
Iterator< ArpaNgram >	iterator ()
Static Public Attributes
static final Regex	BLANK_LINE = new Regex("^\\s*$")
static final Regex	NGRAM_HEADER = new Regex("^\\\\\\d-grams:\\s*$")
static final Regex	NGRAM_END = new Regex("^\\\\end\\\\s*$")
Private Attributes
final File	arpaFile
Static Private Attributes
static final Logger	logger = Logger.getLogger(ArpaFile.class.getName())

---

Detailed Description

Utility class for reading ARPA language model files.

Author:

Lane Schwartz

---

Constructor & Destructor Documentation

joshua.decoder.ff.lm.ArpaFile.ArpaFile

(

String

arpaFileName

)

throws IOException

Constructs an object that represents an ARPA language model file.

Parameters:

arpaFileName	File name of an ARPA language model file
vocab	Symbol table to be used by this object

Here is the call graph for this function:

---

Member Function Documentation

int joshua.decoder.ff.lm.ArpaFile.getOrder

(

)

throws FileNotFoundException

Here is the call graph for this function:

Iterator<ArpaNgram> joshua.decoder.ff.lm.ArpaFile.iterator

(

)

Gets an iterator capable of iterating over all n-grams in the ARPA file.

Returns:

an iterator capable of iterating over all n-grams in the ARPA file

Here is the call graph for this function:

int joshua.decoder.ff.lm.ArpaFile.size

(

)

Gets the total number of n-grams in this ARPA language model file.

Returns:

total number of n-grams in this ARPA language model file

---

Member Data Documentation

final File joshua.decoder.ff.lm.ArpaFile.arpaFile [private]

ARPA file for this object.

final Regex joshua.decoder.ff.lm.ArpaFile.BLANK_LINE = new Regex("^\\s*$") [static]

Regular expression representing a blank line.

final Logger joshua.decoder.ff.lm.ArpaFile.logger = Logger.getLogger(ArpaFile.class.getName()) [static, private]

Logger for this class.

final Regex joshua.decoder.ff.lm.ArpaFile.NGRAM_END = new Regex("^\\\\end\\\\s*$") [static]

Regular expression representing a line ending an ARPA language model file.

final Regex joshua.decoder.ff.lm.ArpaFile.NGRAM_HEADER = new Regex("^\\\\\\d-grams:\\s*$") [static]

Regular expression representing a line starting a new section of n-grams in an ARPA language model file.