com.itextpdf.layout.splitting.BreakAllSplitCharacters Maven / Gradle / Ivy

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/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2023 Apryse Group NV
    Authors: Apryse Software.

    This program is offered under a commercial and under the AGPL license.
    For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.

    AGPL licensing:
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see .
 */
package com.itextpdf.layout.splitting;

import com.itextpdf.io.font.otf.Glyph;
import com.itextpdf.io.font.otf.GlyphLine;
import com.itextpdf.io.util.TextUtil;

/**
 * The implementation of {@link ISplitCharacters} that allows breaking within words.
 */
public class BreakAllSplitCharacters implements ISplitCharacters {

    @Override
    public boolean isSplitCharacter(GlyphLine text, int glyphPos) {
        if (text.size() - 1 == glyphPos) {
            return true;
        }

        Glyph glyphToCheck = text.get(glyphPos);
        if (!glyphToCheck.hasValidUnicode()) {
            return true;
        }
        int charCode = glyphToCheck.getUnicode();

        Glyph nextGlyph = text.get(glyphPos + 1);
        if (!nextGlyph.hasValidUnicode()) {
            return true;
        }

        boolean nextGlyphIsLetterOrDigit = TextUtil.isLetterOrDigit(nextGlyph);
        boolean nextGlyphIsMark = TextUtil.isMark(nextGlyph);

        boolean currentGlyphIsDefaultSplitCharacter = charCode <= ' ' || charCode == '-' || charCode == '\u2010'
                // block of whitespaces
                || (charCode >= 0x2002 && charCode <= 0x200b);

        return (currentGlyphIsDefaultSplitCharacter || nextGlyphIsLetterOrDigit || nextGlyphIsMark)
                && !TextUtil.isNonBreakingHyphen(glyphToCheck);
    }
}