com.ibm.icu.text
Class BreakDictionary
public
class
BreakDictionary
extends Object
This is the class that represents the list of known words used by
DictionaryBasedBreakIterator. The conceptual data structure used
here is a trie: there is a node hanging off the root node for every
letter that can start a word. Each of these nodes has a node hanging
off of it for every letter that can be the second letter of a word
if this node is the first letter, and so on. The trie is represented
as a two-dimensional array that can be treated as a table of state
transitions. Indexes are used to compress this array, taking
advantage of the fact that this array will always be very sparse.
UNKNOWN:
Method Summary |
short | at(int row, char ch)
Uses the column map to map the character to a column number, then
passes the row and column number to the other version of at() |
short | at(int row, int col)
Returns the value in the cell with the specified (logical) row and
column numbers. |
static void | main(String[] args) |
void | printWordList(String partialWord, int state, PrintWriter out) |
void | readDictionaryFile(DataInputStream in) |
public BreakDictionary(InputStream dictionaryStream)
public final short at(int row, char ch)
Uses the column map to map the character to a column number, then
passes the row and column number to the other version of at()
Parameters: row The current state ch The character whose column we're interested in
Returns: The new state to transition to
UNKNOWN:
public final short at(int row, int col)
Returns the value in the cell with the specified (logical) row and
column numbers. In DictionaryBasedBreakIterator, the row number is
a state number, the column number is an input, and the return value
is the row number of the new state to transition to. (0 is the
"error" state, and -1 is the "end of word" state in a dictionary)
Parameters: row The row number of the current state col The column number of the input character (0 means "not a
dictionary character")
Returns: The row number of the new state to transition to
UNKNOWN:
public static void main(String[] args)
public void printWordList(String partialWord, int state, PrintWriter out)
public void readDictionaryFile(DataInputStream in)
Copyright (c) 2006 IBM Corporation and others.