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/*
 * $Id: 9ae46e5fc0ece0feb35fee1c11a4c7a2d6abca87 $
 *
 * This file is part of the iText (R) project.
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 * Authors: Bruno Lowagie, Paulo Soares, et al.
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package com.itextpdf.text.pdf;

import com.itextpdf.text.SplitCharacter;

/**
 * 

* The default class that is used to determine whether or not a character * is a split character. *

* You can add an array of characters or a single character on which iText * should split the chunk. If custom characters have been set, iText will ignore * the default characters this class uses to split chunks. * * @since 2.1.2 */ public class DefaultSplitCharacter implements SplitCharacter { /** * An instance of the default SplitCharacter. */ public static final SplitCharacter DEFAULT = new DefaultSplitCharacter(); protected char[] characters; /** * Default constructor, has no custom characters to check. */ public DefaultSplitCharacter() { // empty body } /** * Constructor with one splittable character. * * @param character char */ public DefaultSplitCharacter(char character) { this(new char[]{character}); } /** * Constructor with an array of splittable characters * * @param characters char[] */ public DefaultSplitCharacter(char[] characters) { this.characters = characters; } /** *

* Checks if a character can be used to split a PdfString. *

*

* The default behavior is that every character less than or equal to SPACE, the character '-' * and some specific unicode ranges are 'splitCharacters'. *

*

* If custom splittable characters are set using the specified constructors, * then this class will ignore the default characters described in the * previous paragraph. *

* * @param start start position in the array * @param current current position in the array * @param end end position in the array * @param ck chunk array * @param cc the character array that has to be checked * @return true if the character can be used to split a string, false otherwise */ public boolean isSplitCharacter(int start, int current, int end, char[] cc, PdfChunk[] ck) { char c = getCurrentCharacter(current, cc, ck); if (characters != null) { for (int i = 0; i < characters.length; i++) { if (c == characters[i]) { return true; } } return false; } if (c <= ' ' || c == '-' || c == '\u2010') { return true; } if (c < 0x2002) return false; return ((c >= 0x2002 && c <= 0x200b) || (c >= 0x2e80 && c < 0xd7a0) || (c >= 0xf900 && c < 0xfb00) || (c >= 0xfe30 && c < 0xfe50) || (c >= 0xff61 && c < 0xffa0)); } /** * Returns the current character * * @param current current position in the array * @param ck chunk array * @param cc the character array that has to be checked * @return the current character */ protected char getCurrentCharacter(int current, char[] cc, PdfChunk[] ck) { if (ck == null) { return cc[current]; } return (char) ck[Math.min(current, ck.length - 1)].getUnicodeEquivalent(cc[current]); } }




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