All Downloads are FREE. Search and download functionalities are using the official Maven repository.

com.topologi.diffx.event.impl.SpaceEvent Maven / Gradle / Ivy

Go to download

docx4j is a library which helps you to work with the Office Open XML file format as used in docx documents, pptx presentations, and xlsx spreadsheets.

There is a newer version: 6.1.2
Show newest version
/*
 * This file is part of the DiffX library.
 *
 * For licensing information please see the file license.txt included in the release.
 * A copy of this licence can also be found at
 *   http://www.opensource.org/licenses/artistic-license-2.0.php
 */
package com.topologi.diffx.event.impl;

import com.topologi.diffx.event.TextEvent;

/**
 * A particular type of event reserved for white spaces.
 *
 * @author Christophe Lauret
 * @version 27 March 2010
 */
public final class SpaceEvent extends CharactersEventBase implements TextEvent {

  /**
   * A static instance for the single white spaces.
   *
   * 

Use this constant instead of creating new instances */ public static final SpaceEvent SINGLE_WHITESPACE = new SpaceEvent(" "); /** * A static instance for the double white spaces. * *

Use this constant instead of creating new instances */ public static final SpaceEvent DOUBLE_WHITESPACE = new SpaceEvent(" "); /** * A static instance for the new lines. * *

Use this constant instead of creating new instances */ public static final SpaceEvent NEW_LINE = new SpaceEvent("\n"); /** * A static instance for tabs. * *

Use this constant instead of creating new instances */ public static final SpaceEvent TAB = new SpaceEvent("\t"); /** * Creates a new word event. * * @param w The word as a string. * * @throws NullPointerException If the given String is null. */ public SpaceEvent(CharSequence w) throws NullPointerException { super(w); } @Override public String toString() { return "space: \""+toString(getCharacters().toCharArray())+'"'; } /** * Returns the white space event corresponding to the given string. * * @param space The string for the white space event. * * @return A readable string. */ public static SpaceEvent getInstance(CharSequence space) { // check constants if (" ".equals(space)) return SINGLE_WHITESPACE; if (" ".equals(space)) return DOUBLE_WHITESPACE; if ("\n".equals(space)) return NEW_LINE; if ("\t".equals(space)) return TAB; // create a new instance return new SpaceEvent(space); } /** * Returns the white space event corresponding to the given string. * * @param c The string for the white space event. * * @return A readable string. */ public static SpaceEvent getInstance(char c) { // check constants if (c == ' ') return SINGLE_WHITESPACE; if (c == '\n') return NEW_LINE; if (c == '\t') return TAB; // create a new instance // FIXME wasteful!! return new SpaceEvent(c+""); } /** * Returns the white space characters as a readable string. * * @param chars The whitespace characters * * @return A readable string. */ private static String toString(char[] chars) { StringBuffer out = new StringBuffer(); for (char c : chars) { switch(c) { case '\n': out.append("\\n"); break; case '\t': out.append("\\t"); break; default : out.append(c); } } return out.toString(); } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy