javatools.parsers

Class PositionTracker

java.lang.Object

javatools.parsers.PositionTracker

public class PositionTracker
extends Object

Copyright 2016 Steffen Metzger Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. This class implements position change trackers that keep track of position changes within a String, e.g. caused through normalization etc. This allows for instance, given a position int the normalized string to get the corresponding position in the original non-normalized string backward position tracker - tracking several replacement/text changes allowing to trace a position in the modified text back to the corresp. position in the original text for the other direction see ForwardPositionTracker

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PositionTracker.ForwardPositionTracker forward position change tracking - keeping track of several rounds of text modifications allowing to trace a position in the original text along the modifications to the corresp.

Constructor Summary

Constructors

Constructor and Description
PositionTracker()

Method Summary

Modifier and Type	Method and Description
void	addPositionChange(int pos, int modifier)
void	closeRun() Closes the current changing run by Merging new position changes into the existing position change map after each round (one round=consecutive changes along the text) you need to call closeRun() before submitting more position changes from a new round, i.e.
Integer	translatePosition(Integer pos) Merges new position changes (given with the inversed old2new mapping) into the existing position change map

Methods inherited from class java.lang.Object

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

Constructor Detail

PositionTracker

public PositionTracker()

Method Detail

addPositionChange

public void addPositionChange(int pos,
                              int modifier)

closeRun

public void closeRun()

Closes the current changing run by Merging new position changes into the existing position change map after each round (one round=consecutive changes along the text) you need to call closeRun() before submitting more position changes from a new round, i.e. whenever you passed the string to be modified once call closeRun() before starting to run over the string again with more replacements Do this every time you ran once over the text making changes to be tracked

translatePosition

public Integer translatePosition(Integer pos)

Merges new position changes (given with the inversed old2new mapping) into the existing position change map