+++ /dev/null
-/*
- Egothor Software License version 1.00
- Copyright (C) 1997-2004 Leo Galambos.
- Copyright (C) 2002-2004 "Egothor developers"
- on behalf of the Egothor Project.
- All rights reserved.
-
- This software is copyrighted by the "Egothor developers". If this
- license applies to a single file or document, the "Egothor developers"
- are the people or entities mentioned as copyright holders in that file
- or document. If this license applies to the Egothor project as a
- whole, the copyright holders are the people or entities mentioned in
- the file CREDITS. This file can be found in the same location as this
- license in the distribution.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are
- met:
- 1. Redistributions of source code must retain the above copyright
- notice, the list of contributors, this list of conditions, and the
- following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, the list of contributors, this list of conditions, and the
- disclaimer that follows these conditions in the documentation
- and/or other materials provided with the distribution.
- 3. The name "Egothor" must not be used to endorse or promote products
- derived from this software without prior written permission. For
- written permission, please contact Leo.G@seznam.cz
- 4. Products derived from this software may not be called "Egothor",
- nor may "Egothor" appear in their name, without prior written
- permission from Leo.G@seznam.cz.
-
- In addition, we request that you include in the end-user documentation
- provided with the redistribution and/or in the software itself an
- acknowledgement equivalent to the following:
- "This product includes software developed by the Egothor Project.
- http://egothor.sf.net/"
-
- THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE EGOTHOR PROJECT OR ITS CONTRIBUTORS BE LIABLE
- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
- This software consists of voluntary contributions made by many
- individuals on behalf of the Egothor Project and was originally
- created by Leo Galambos (Leo.G@seznam.cz).
- */
-package org.egothor.stemmer;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.TreeMap;
-
-/**
- * The Row class represents a row in a matrix representation of a trie.
- */
-public class Row {
- TreeMap<Character,Cell> cells = new TreeMap<Character,Cell>();
- int uniformCnt = 0;
- int uniformSkip = 0;
-
- /**
- * Construct a Row object from input carried in via the given input stream.
- *
- * @param is the input stream
- * @exception IOException if an I/O error occurs
- */
- public Row(DataInput is) throws IOException {
- for (int i = is.readInt(); i > 0; i--) {
- char ch = is.readChar();
- Cell c = new Cell();
- c.cmd = is.readInt();
- c.cnt = is.readInt();
- c.ref = is.readInt();
- c.skip = is.readInt();
- cells.put(ch, c);
- }
- }
-
- /**
- * The default constructor for the Row object.
- */
- public Row() {}
-
- /**
- * Construct a Row using the cells of the given Row.
- *
- * @param old the Row to copy
- */
- public Row(Row old) {
- cells = old.cells;
- }
-
- /**
- * Set the command in the Cell of the given Character to the given integer.
- *
- * @param way the Character defining the Cell
- * @param cmd the new command
- */
- public void setCmd(Character way, int cmd) {
- Cell c = at(way);
- if (c == null) {
- c = new Cell();
- c.cmd = cmd;
- cells.put(way, c);
- } else {
- c.cmd = cmd;
- }
- c.cnt = (cmd >= 0) ? 1 : 0;
- }
-
- /**
- * Set the reference to the next row in the Cell of the given Character to the
- * given integer.
- *
- * @param way the Character defining the Cell
- * @param ref The new ref value
- */
- public void setRef(Character way, int ref) {
- Cell c = at(way);
- if (c == null) {
- c = new Cell();
- c.ref = ref;
- cells.put(way, c);
- } else {
- c.ref = ref;
- }
- }
-
- /**
- * Return the number of cells in use.
- *
- * @return the number of cells in use
- */
- public int getCells() {
- Iterator<Character> i = cells.keySet().iterator();
- int size = 0;
- for (; i.hasNext();) {
- Character c = i.next();
- Cell e = at(c);
- if (e.cmd >= 0 || e.ref >= 0) {
- size++;
- }
- }
- return size;
- }
-
- /**
- * Return the number of references (how many transitions) to other rows.
- *
- * @return the number of references
- */
- public int getCellsPnt() {
- Iterator<Character> i = cells.keySet().iterator();
- int size = 0;
- for (; i.hasNext();) {
- Character c = i.next();
- Cell e = at(c);
- if (e.ref >= 0) {
- size++;
- }
- }
- return size;
- }
-
- /**
- * Return the number of patch commands saved in this Row.
- *
- * @return the number of patch commands
- */
- public int getCellsVal() {
- Iterator<Character> i = cells.keySet().iterator();
- int size = 0;
- for (; i.hasNext();) {
- Character c = i.next();
- Cell e = at(c);
- if (e.cmd >= 0) {
- size++;
- }
- }
- return size;
- }
-
- /**
- * Return the command in the Cell associated with the given Character.
- *
- * @param way the Character associated with the Cell holding the desired
- * command
- * @return the command
- */
- public int getCmd(Character way) {
- Cell c = at(way);
- return (c == null) ? -1 : c.cmd;
- }
-
- /**
- * Return the number of patch commands were in the Cell associated with the
- * given Character before the Trie containing this Row was reduced.
- *
- * @param way the Character associated with the desired Cell
- * @return the number of patch commands before reduction
- */
- public int getCnt(Character way) {
- Cell c = at(way);
- return (c == null) ? -1 : c.cnt;
- }
-
- /**
- * Return the reference to the next Row in the Cell associated with the given
- * Character.
- *
- * @param way the Character associated with the desired Cell
- * @return the reference, or -1 if the Cell is <tt>null,/tt>
- */
- public int getRef(Character way) {
- Cell c = at(way);
- return (c == null) ? -1 : c.ref;
- }
-
- /**
- * Write the contents of this Row to the given output stream.
- *
- * @param os the output stream
- * @exception IOException if an I/O error occurs
- */
- public void store(DataOutput os) throws IOException {
- os.writeInt(cells.size());
- Iterator<Character> i = cells.keySet().iterator();
- for (; i.hasNext();) {
- Character c = i.next();
- Cell e = at(c);
- if (e.cmd < 0 && e.ref < 0) {
- continue;
- }
-
- os.writeChar(c.charValue());
- os.writeInt(e.cmd);
- os.writeInt(e.cnt);
- os.writeInt(e.ref);
- os.writeInt(e.skip);
- }
- }
-
- /**
- * Return the number of identical Cells (containing patch commands) in this
- * Row.
- *
- * @param eqSkip when set to <tt>false</tt> the removed patch commands are
- * considered
- * @return the number of identical Cells, or -1 if there are (at least) two
- * different cells
- */
- public int uniformCmd(boolean eqSkip) {
- Iterator<Cell> i = cells.values().iterator();
- int ret = -1;
- uniformCnt = 1;
- uniformSkip = 0;
- for (; i.hasNext();) {
- Cell c = i.next();
- if (c.ref >= 0) {
- return -1;
- }
- if (c.cmd >= 0) {
- if (ret < 0) {
- ret = c.cmd;
- uniformSkip = c.skip;
- } else if (ret == c.cmd) {
- if (eqSkip) {
- if (uniformSkip == c.skip) {
- uniformCnt++;
- } else {
- return -1;
- }
- } else {
- uniformCnt++;
- }
- } else {
- return -1;
- }
- }
- }
- return ret;
- }
-
- /**
- * Write the contents of this Row to stdout.
- */
- public void print() {
- for (Iterator<Character> i = cells.keySet().iterator(); i.hasNext();) {
- Character ch = i.next();
- Cell c = at(ch);
- System.out.print("[" + ch + ":" + c + "]");
- }
- System.out.println();
- }
-
- Cell at(Character index) {
- return cells.get(index);
- }
-}
fnp / pylucene.git / blobdiff