iText 5 itextpdf.jar Source Code

itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

✍: FYIcenter.com

com/itextpdf/text/pdf/BidiLine.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * 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 http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

import com.itextpdf.text.Chunk;
import com.itextpdf.text.Image;
import com.itextpdf.text.TabStop;
import com.itextpdf.text.Utilities;
import com.itextpdf.text.pdf.draw.DrawInterface;
import com.itextpdf.text.pdf.draw.LineSeparator;
import com.itextpdf.text.pdf.languages.ArabicLigaturizer;

import java.util.ArrayList;
import java.util.List;

/** Does all the line bidirectional processing with PdfChunk assembly.
 *
 * @author Paulo Soares
 */
public class BidiLine {

    protected int runDirection;
    protected int pieceSize = 256;
    protected char text[] = new char[pieceSize];
    protected PdfChunk detailChunks[] = new PdfChunk[pieceSize];
    protected int totalTextLength = 0;

    protected byte orderLevels[] = new byte[pieceSize];
    protected int indexChars[] = new int[pieceSize];

    protected ArrayList<PdfChunk> chunks = new ArrayList<PdfChunk>();
    protected int indexChunk = 0;
    protected int indexChunkChar = 0;
    protected int currentChar = 0;

    protected int storedRunDirection;
    protected char storedText[] = new char[0];
    protected PdfChunk storedDetailChunks[] = new PdfChunk[0];
    protected int storedTotalTextLength = 0;

    protected byte storedOrderLevels[] = new byte[0];
    protected int storedIndexChars[] = new int[0];

    protected int storedIndexChunk = 0;
    protected int storedIndexChunkChar = 0;
    protected int storedCurrentChar = 0;

    protected boolean isWordSplit = false;

    protected boolean shortStore;
//    protected ArabicShaping arabic = new ArabicShaping(ArabicShaping.LETTERS_SHAPE | ArabicShaping.LENGTH_GROW_SHRINK | ArabicShaping.TEXT_DIRECTION_LOGICAL);
    protected static final IntHashtable mirrorChars = new IntHashtable();
    protected int arabicOptions;

    /** Creates new BidiLine */
    public BidiLine() {
    }

    public BidiLine(BidiLine org) {
        runDirection = org.runDirection;
        pieceSize = org.pieceSize;
        text = org.text.clone();
        detailChunks = org.detailChunks.clone();
        totalTextLength = org.totalTextLength;

        orderLevels = org.orderLevels.clone();
        indexChars = org.indexChars.clone();

        chunks = new ArrayList<PdfChunk>(org.chunks);
        indexChunk = org.indexChunk;
        indexChunkChar = org.indexChunkChar;
        currentChar = org.currentChar;

        storedRunDirection = org.storedRunDirection;
        storedText = org.storedText.clone();
        storedDetailChunks = org.storedDetailChunks.clone();
        storedTotalTextLength = org.storedTotalTextLength;

        storedOrderLevels = org.storedOrderLevels.clone();
        storedIndexChars = org.storedIndexChars.clone();

        storedIndexChunk = org.storedIndexChunk;
        storedIndexChunkChar = org.storedIndexChunkChar;
        storedCurrentChar = org.storedCurrentChar;

        shortStore = org.shortStore;
        arabicOptions = org.arabicOptions;
    }

    public boolean isEmpty() {
        return currentChar >= totalTextLength && indexChunk >= chunks.size();
    }

    public void clearChunks() {
        chunks.clear();
        totalTextLength = 0;
        currentChar = 0;
    }

    public boolean getParagraph(int runDirection) {
        this.runDirection = runDirection;
        currentChar = 0;
        totalTextLength = 0;

        boolean hasText = false;
        char c;
        char uniC;
        BaseFont bf;
        for (; indexChunk < chunks.size(); ++indexChunk) {
            PdfChunk ck = chunks.get(indexChunk);
            bf = ck.font().getFont();
            String s = ck.toString();
            int len = s.length();
            for (; indexChunkChar < len; ++indexChunkChar) {
                c = s.charAt(indexChunkChar);
                uniC = (char)bf.getUnicodeEquivalent(c);
                if (uniC == '\r' || uniC == '\n') {
                    // next condition is never true for CID
                    if (uniC == '\r' && indexChunkChar + 1 < len && s.charAt(indexChunkChar + 1) == '\n')
                        ++indexChunkChar;
                    ++indexChunkChar;
                    if (indexChunkChar >= len) {
                        indexChunkChar = 0;
                        ++indexChunk;
                    }
                    hasText = true;
                    if (totalTextLength == 0)
                        detailChunks[0] = ck;
                    break;
                }
                addPiece(c, ck);
            }
            if (hasText)
                break;
            indexChunkChar = 0;
        }
        if (totalTextLength == 0)
            return hasText;

        // remove trailing WS
        totalTextLength = trimRight(0, totalTextLength - 1) + 1;
        if (totalTextLength == 0) {
        	return true;
        }

        if (runDirection != PdfWriter.RUN_DIRECTION_NO_BIDI) {
            if (orderLevels.length < totalTextLength) {
                orderLevels = new byte[pieceSize];
                indexChars = new int[pieceSize];
            }
            ArabicLigaturizer.processNumbers(text, 0, totalTextLength, arabicOptions);
            byte paragraphEmbeddingLevel;
            switch (runDirection) {
                case PdfWriter.RUN_DIRECTION_LTR:
                    paragraphEmbeddingLevel = 0;
                    break;
                case PdfWriter.RUN_DIRECTION_RTL:
                    paragraphEmbeddingLevel = 1;
                    break;
                case PdfWriter.RUN_DIRECTION_DEFAULT:
                default:
                    paragraphEmbeddingLevel = -1;
                    break;
            }
            BidiOrder order = new BidiOrder(text, 0, totalTextLength, paragraphEmbeddingLevel);
            byte od[] = order.getLevels();
            for (int k = 0; k < totalTextLength; ++k) {
                orderLevels[k] = od[k];
                indexChars[k] = k;
            }
            doArabicShapping();
            mirrorGlyphs();
        }
        totalTextLength = trimRightEx(0, totalTextLength - 1) + 1;
        return true;
    }

    public void addChunk(PdfChunk chunk) {
        chunks.add(chunk);
    }

    public void addChunks(ArrayList<PdfChunk> chunks) {
        this.chunks.addAll(chunks);
    }

    public void addPiece(char c, PdfChunk chunk) {
        if (totalTextLength >= pieceSize) {
            char tempText[] = text;
            PdfChunk tempDetailChunks[] = detailChunks;
            pieceSize *= 2;
            text = new char[pieceSize];
            detailChunks = new PdfChunk[pieceSize];
            System.arraycopy(tempText, 0, text, 0, totalTextLength);
            System.arraycopy(tempDetailChunks, 0, detailChunks, 0, totalTextLength);
        }
        text[totalTextLength] = c;
        detailChunks[totalTextLength++] = chunk;
    }

    public void save() {
        if (indexChunk > 0) {
            if (indexChunk >= chunks.size())
                chunks.clear();
            else {
                for (--indexChunk; indexChunk >= 0; --indexChunk)
                    chunks.remove(indexChunk);
            }
            indexChunk = 0;
        }
        storedRunDirection = runDirection;
        storedTotalTextLength = totalTextLength;
        storedIndexChunk = indexChunk;
        storedIndexChunkChar = indexChunkChar;
        storedCurrentChar = currentChar;
        shortStore = currentChar < totalTextLength;
        if (!shortStore) {
            // long save
            if (storedText.length < totalTextLength) {
                storedText = new char[totalTextLength];
                storedDetailChunks = new PdfChunk[totalTextLength];
            }
            System.arraycopy(text, 0, storedText, 0, totalTextLength);
            System.arraycopy(detailChunks, 0, storedDetailChunks, 0, totalTextLength);
        }
        if (runDirection != PdfWriter.RUN_DIRECTION_NO_BIDI) {
            if (storedOrderLevels.length < totalTextLength) {
                storedOrderLevels = new byte[totalTextLength];
                storedIndexChars = new int[totalTextLength];
            }
            System.arraycopy(orderLevels, currentChar, storedOrderLevels, currentChar, totalTextLength - currentChar);
            System.arraycopy(indexChars, currentChar, storedIndexChars, currentChar, totalTextLength - currentChar);
        }
    }

    public void restore() {
        runDirection = storedRunDirection;
        totalTextLength = storedTotalTextLength;
        indexChunk = storedIndexChunk;
        indexChunkChar = storedIndexChunkChar;
        currentChar = storedCurrentChar;
        if (!shortStore) {
            // long restore
            System.arraycopy(storedText, 0, text, 0, totalTextLength);
            System.arraycopy(storedDetailChunks, 0, detailChunks, 0, totalTextLength);
        }
        if (runDirection != PdfWriter.RUN_DIRECTION_NO_BIDI) {
            System.arraycopy(storedOrderLevels, currentChar, orderLevels, currentChar, totalTextLength - currentChar);
            System.arraycopy(storedIndexChars, currentChar, indexChars, currentChar, totalTextLength - currentChar);
        }
    }

    public void mirrorGlyphs() {
        for (int k = 0; k < totalTextLength; ++k) {
            if ((orderLevels[k] & 1) == 1) {
                int mirror = mirrorChars.get(text[k]);
                if (mirror != 0)
                    text[k] = (char)mirror;
            }
        }
    }

    public void doArabicShapping() {
        int src = 0;
        int dest = 0;
        for (;;) {
            while (src < totalTextLength) {
                char c = text[src];
                if (c >= 0x0600 && c <= 0x06ff)
                    break;
                if (src != dest) {
                    text[dest] = text[src];
                    detailChunks[dest] = detailChunks[src];
                    orderLevels[dest] = orderLevels[src];
                }
                ++src;
                ++dest;
            }
            if (src >= totalTextLength) {
                totalTextLength = dest;
                return;
            }
            int startArabicIdx = src;
            ++src;
            while (src < totalTextLength) {
                char c = text[src];
                if (c < 0x0600 || c > 0x06ff)
                    break;
                ++src;
            }
            int arabicWordSize = src - startArabicIdx;
            int size = ArabicLigaturizer.arabic_shape(text, startArabicIdx, arabicWordSize, text, dest, arabicWordSize, arabicOptions);
            if (startArabicIdx != dest) {
                for (int k = 0; k < size; ++k) {
                    detailChunks[dest] = detailChunks[startArabicIdx];
                    orderLevels[dest++] = orderLevels[startArabicIdx++];
                }
            }
            else
                dest += size;
        }
    }

    public PdfLine processLine(float leftX, float width, int alignment, int runDirection, int arabicOptions, float minY, float yLine, float descender) {
        isWordSplit = false;
        this.arabicOptions = arabicOptions;
        save();
        boolean isRTL = runDirection == PdfWriter.RUN_DIRECTION_RTL;
        if (currentChar >= totalTextLength) {
            boolean hasText = getParagraph(runDirection);
            if (!hasText)
                return null;
            if (totalTextLength == 0) {
                ArrayList<PdfChunk> ar = new ArrayList<PdfChunk>();
                PdfChunk ck = new PdfChunk("", detailChunks[0]);
                ar.add(ck);
                return new PdfLine(0, 0, width, alignment, true, ar, isRTL);
            }
        }
        float originalWidth = width;
        int lastSplit = -1;
        if (currentChar != 0)
            currentChar = trimLeftEx(currentChar, totalTextLength - 1);

        int oldCurrentChar = currentChar;
        int uniC = 0;
        PdfChunk ck = null;
        float charWidth = 0;
        PdfChunk lastValidChunk = null;
        TabStop tabStop = null;
        List<TabStop> rtlTabsToBeAligned = new ArrayList<TabStop>();
        float tabStopAnchorPosition = Float.NaN;
        float tabPosition = Float.NaN;
        boolean surrogate = false;
        for (; currentChar < totalTextLength; ++currentChar) {
            ck = detailChunks[currentChar];
            if (ck.isImage() && minY < yLine) {
                Image img = ck.getImage();
                if (img.isScaleToFitHeight() && yLine + 2 * descender - img.getScaledHeight() - ck.getImageOffsetY() - img.getSpacingBefore() < minY) {
                    float scalePercent = (yLine + 2 * descender - ck.getImageOffsetY() - img.getSpacingBefore() - minY) / img.getScaledHeight();
                	ck.setImageScalePercentage(scalePercent);
                }
            }
            surrogate = Utilities.isSurrogatePair(text, currentChar);
            if (surrogate)
                uniC = ck.getUnicodeEquivalent(Utilities.convertToUtf32(text, currentChar));
            else
                uniC = ck.getUnicodeEquivalent(text[currentChar]);
            if (PdfChunk.noPrint(uniC))
                continue;
            if (surrogate)
                charWidth = ck.getCharWidth(uniC);
            else {
                if (ck.isImage()) {
                    charWidth = ck.getImageWidth();
                } else {
                    charWidth = ck.getCharWidth(text[currentChar]);
                }
            }
            if (width - charWidth < 0) {
            	// If the chunk is an image and it is the first one in line, check if resize requested
            	// If so, resize to fit the current line width
            	if (lastValidChunk == null && ck.isImage()) {
            		Image img = ck.getImage();
            		if (img.isScaleToFitLineWhenOverflow()) {
            			//float scalePercent = width / img.getWidth() * 100;
            			//img.scalePercent(scalePercent);
            			float scalePercent = width / img.getWidth();
            			ck.setImageScalePercentage(scalePercent);
            			charWidth = width;
            		}
            	}
            }
            if (ck.isTab()) {
                if (ck.isAttribute(Chunk.TABSETTINGS)) {
                    lastSplit = currentChar;
                    if (tabStop != null) {
                        width = processTabStop(tabStop, tabPosition, originalWidth, width, tabStopAnchorPosition, isRTL, rtlTabsToBeAligned);
                    }

                    tabStop = PdfChunk.getTabStop(ck, originalWidth - width);
                    if (tabStop.getPosition() > originalWidth) {
                        tabStop = null;
                        break;
                    }
                    ck.setTabStop(tabStop);
                    if (!isRTL && tabStop.getAlignment() == TabStop.Alignment.LEFT) {
                        width = originalWidth - tabStop.getPosition();
                        tabStop = null;
                        tabPosition = Float.NaN;
                        tabStopAnchorPosition = Float.NaN;
                    } else {
                        tabPosition = originalWidth - width;
                        tabStopAnchorPosition = Float.NaN;
                    }
                } else {
                    Object[] tab = (Object[])ck.getAttribute(Chunk.TAB);
                    //Keep deprecated tab logic for backward compatibility...
                    float tabStopPosition = ((Float)tab[1]).floatValue();
                    boolean newLine = ((Boolean)tab[2]).booleanValue();
                    if (newLine && tabStopPosition < originalWidth - width) {
                        return new PdfLine(0, originalWidth, width, alignment, true, createArrayOfPdfChunks(oldCurrentChar, currentChar - 1), isRTL);
                    }
                    detailChunks[currentChar].adjustLeft(leftX);
                    width = originalWidth - tabStopPosition;
                }
            }
            else if (ck.isSeparator()) {
                Object[] sep = (Object[])ck.getAttribute(Chunk.SEPARATOR);
                DrawInterface di = (DrawInterface)sep[0];
                Boolean vertical = (Boolean)sep[1];
                if (vertical && di instanceof LineSeparator) {
                    float separatorWidth = originalWidth * ((LineSeparator) di).getPercentage() / 100f;
                    width -= separatorWidth;
                    if (width < 0) {
                        width = 0;
                    }
                }
            } else {
                boolean splitChar = ck.isExtSplitCharacter(oldCurrentChar, currentChar, totalTextLength, text, detailChunks);
                if (splitChar && Character.isWhitespace((char)uniC))
                    lastSplit = currentChar;
                if (width - charWidth < 0)
                    break;
                if (tabStop != null && tabStop.getAlignment() == TabStop.Alignment.ANCHOR && Float.isNaN(tabStopAnchorPosition) && tabStop.getAnchorChar() == (char) uniC) {
                    tabStopAnchorPosition = originalWidth - width;
                }
                width -= charWidth;
                if (splitChar)
                    lastSplit = currentChar;
            }
            lastValidChunk = ck;
            if (surrogate)
                ++currentChar;
        }
        if (lastValidChunk == null) {
            // not even a single char fit; must output the first char
            ++currentChar;
            if (surrogate)
                ++currentChar;
            return new PdfLine(0, originalWidth, 0, alignment, false, createArrayOfPdfChunks(currentChar - 1, currentChar - 1), isRTL);
        }

        if (tabStop != null) {
            width = processTabStop(tabStop, tabPosition, originalWidth, width, tabStopAnchorPosition, isRTL, rtlTabsToBeAligned);
        }
        if (rtlTabsToBeAligned != null) {
            for (TabStop rtlTabStop : rtlTabsToBeAligned) {
                rtlTabStop.setPosition(originalWidth - width - rtlTabStop.getPosition());
            }
        }

        if (currentChar >= totalTextLength) {
            // there was more line than text
            return new PdfLine(0, originalWidth, width, alignment, true, createArrayOfPdfChunks(oldCurrentChar, totalTextLength - 1), isRTL);
        }
        int newCurrentChar = trimRightEx(oldCurrentChar, currentChar - 1);
        if (newCurrentChar < oldCurrentChar) {
            // only WS
            return new PdfLine(0, originalWidth, width, alignment, false, createArrayOfPdfChunks(oldCurrentChar, currentChar - 1), isRTL);
        }
        if (newCurrentChar == currentChar - 1) { // middle of word
            HyphenationEvent he = (HyphenationEvent)lastValidChunk.getAttribute(Chunk.HYPHENATION);
            if (he != null) {
                int word[] = getWord(oldCurrentChar, newCurrentChar);
                if (word != null) {
                    float testWidth = width + getWidth(word[0], currentChar - 1);
                    String pre = he.getHyphenatedWordPre(new String(text, word[0], word[1] - word[0]), lastValidChunk.font().getFont(), lastValidChunk.font().size(), testWidth);
                    String post = he.getHyphenatedWordPost();
                    if (pre.length() > 0) {
                        PdfChunk extra = new PdfChunk(pre, lastValidChunk);
                        currentChar = word[1] - post.length();
                        return new PdfLine(0, originalWidth, testWidth - lastValidChunk.width(pre), alignment, false, createArrayOfPdfChunks(oldCurrentChar, word[0] - 1, extra), isRTL);
                    }
                }
            }
        }
        if (lastSplit == -1)
            isWordSplit = true;
        if (lastSplit == -1 || lastSplit >= newCurrentChar) {
            // no split point or split point ahead of end
            return new PdfLine(0, originalWidth, width + getWidth(newCurrentChar + 1, currentChar - 1, originalWidth), alignment, false, createArrayOfPdfChunks(oldCurrentChar, newCurrentChar), isRTL);
        }
        // standard split
        currentChar = lastSplit + 1;
        newCurrentChar = trimRightEx(oldCurrentChar, lastSplit);
        if (newCurrentChar < oldCurrentChar) {
            // only WS again
            newCurrentChar = currentChar - 1;
        }
        return new PdfLine(0, originalWidth, originalWidth - getWidth(oldCurrentChar, newCurrentChar, originalWidth), alignment, false, createArrayOfPdfChunks(oldCurrentChar, newCurrentChar), isRTL);
    }

    private float processTabStop(TabStop tabStop, float tabPosition, float originalWidth, float width, float tabStopAnchorPosition, boolean isRTL, List<TabStop> rtlTabsToBeAligned) {
        float tabStopPosition = tabStop.getPosition(tabPosition, originalWidth - width, tabStopAnchorPosition);
        width -= tabStopPosition - tabPosition;
        if (width < 0) {
            tabStopPosition += width;
            width = 0;
        }
        if (!isRTL) {
            tabStop.setPosition(tabStopPosition);
        } else {
            tabStop.setPosition(tabPosition); // This will be mirrored when we know exact line width
            rtlTabsToBeAligned.add(tabStop);
        }
        return width;
    }

    /**
     * Call this after processLine() to know if any word was split into several lines.
     * @return
     */
    public boolean isWordSplit() {
        return isWordSplit;
    }

    /** Gets the width of a range of characters.
     * @param startIdx the first index to calculate
     * @param lastIdx the last inclusive index to calculate
     * @return the sum of all widths
     */
    public float getWidth(int startIdx, int lastIdx) {
        return getWidth(startIdx, lastIdx, 0);
    }

    /** Gets the width of a range of characters.
     * @param startIdx the first index to calculate
     * @param lastIdx the last inclusive index to calculate
     * @param originalWidth the full width of the line. It is used in case of RTL and tab stops
     * @return the sum of all widths
     */
    public float getWidth(int startIdx, int lastIdx, float originalWidth) {
        char c = 0;
        PdfChunk ck = null;
        float width = 0;
        TabStop tabStop = null;
        float tabStopAnchorPosition = Float.NaN;
        float tabPosition = Float.NaN;
        for (; startIdx <= lastIdx; ++startIdx) {
            boolean surrogate = Utilities.isSurrogatePair(text, startIdx);
            if (detailChunks[startIdx].isTab()
                    //Keep deprecated tab logic for backward compatibility...
                    && detailChunks[startIdx].isAttribute(Chunk.TABSETTINGS)) {
                if (tabStop != null) {
                    float tabStopPosition = tabStop.getPosition(tabPosition, width, tabStopAnchorPosition);
                    width = tabStopPosition + (width - tabPosition);
                    tabStop.setPosition(tabStopPosition);
                }
                tabStop = detailChunks[startIdx].getTabStop();
                if (tabStop == null) {
                    tabStop = PdfChunk.getTabStop(detailChunks[startIdx], width);
                    tabPosition = width;
                    tabStopAnchorPosition = Float.NaN;
                } else {
                    if (runDirection == PdfWriter.RUN_DIRECTION_RTL) {
                        width = originalWidth - tabStop.getPosition();
                    } else {
                        width = tabStop.getPosition();
                    }
                    tabStop = null;
                    tabPosition = Float.NaN;
                    tabStopAnchorPosition = Float.NaN;
                }
            } else if (surrogate) {
                width += detailChunks[startIdx].getCharWidth(Utilities.convertToUtf32(text, startIdx));
                ++startIdx;
            }
            else {
                c = text[startIdx];
                ck = detailChunks[startIdx];
                if (PdfChunk.noPrint(ck.getUnicodeEquivalent(c)))
                    continue;
                if (tabStop != null && tabStop.getAlignment() != TabStop.Alignment.ANCHOR && Float.isNaN(tabStopAnchorPosition) && tabStop.getAnchorChar() == (char)ck.getUnicodeEquivalent(c)) {
                    tabStopAnchorPosition = width;
                }
                width += detailChunks[startIdx].getCharWidth(c);
            }
        }
        if (tabStop != null) {
            float tabStopPosition = tabStop.getPosition(tabPosition, width, tabStopAnchorPosition);
            width = tabStopPosition + (width - tabPosition);
            tabStop.setPosition(tabStopPosition);
        }
        return width;
    }

    public ArrayList<PdfChunk> createArrayOfPdfChunks(int startIdx, int endIdx) {
        return createArrayOfPdfChunks(startIdx, endIdx, null);
    }

    public ArrayList<PdfChunk> createArrayOfPdfChunks(int startIdx, int endIdx, PdfChunk extraPdfChunk) {
        boolean bidi = runDirection != PdfWriter.RUN_DIRECTION_NO_BIDI;
        if (bidi)
            reorder(startIdx, endIdx);

        ArrayList<PdfChunk> ar = new ArrayList<PdfChunk>();
        PdfChunk refCk = detailChunks[startIdx];
        PdfChunk ck = null;
        StringBuffer buf = new StringBuffer();
        char c;
        int idx = 0;
        for (; startIdx <= endIdx; ++startIdx) {
            idx = bidi ? indexChars[startIdx] : startIdx;
            c = text[idx];
            ck = detailChunks[idx];
            if (PdfChunk.noPrint(ck.getUnicodeEquivalent(c)))
                continue;
            if (ck.isImage() || ck.isSeparator() || ck.isTab()) {
                if (buf.length() > 0) {
                    ar.add(new PdfChunk(buf.toString(), refCk));
                    buf = new StringBuffer();
                }
                ar.add(ck);
            }
            else if (ck == refCk) {
                buf.append(c);
            }
            else {
                if (buf.length() > 0) {
                    ar.add(new PdfChunk(buf.toString(), refCk));
                    buf = new StringBuffer();
                }
                if (!ck.isImage() && !ck.isSeparator() && !ck.isTab())
                    buf.append(c);
                refCk = ck;
            }
        }
        if (buf.length() > 0) {
            ar.add(new PdfChunk(buf.toString(), refCk));
        }
        if (extraPdfChunk != null)
            ar.add(extraPdfChunk);
        return ar;
    }

    public int[] getWord(int startIdx, int idx) {
        int last = idx;
        int first = idx;
        // forward
        for (; last < totalTextLength; ++last) {
            if (!Character.isLetter(text[last]) && !Character.isDigit(text[last]) && text[last] != '\u00AD')
                break;
        }
        if (last == idx)
            return null;
        // backward
        for (; first >= startIdx; --first) {
            if (!Character.isLetter(text[first]) && !Character.isDigit(text[first]) && text[first] != '\u00AD')
                break;
        }
        ++first;
        return new int[]{first, last};
    }

    public int trimRight(int startIdx, int endIdx) {
        int idx = endIdx;
        char c;
        for (; idx >= startIdx; --idx) {
            c = (char)detailChunks[idx].getUnicodeEquivalent(text[idx]);
            if (!isWS(c))
                break;
        }
        return idx;
    }

    public int trimLeft(int startIdx, int endIdx) {
        int idx = startIdx;
        char c;
        for (; idx <= endIdx; ++idx) {
            c = (char)detailChunks[idx].getUnicodeEquivalent(text[idx]);
            if (!isWS(c))
                break;
        }
        return idx;
    }

    public int trimRightEx(int startIdx, int endIdx) {
        int idx = endIdx;
        char c = 0;
        for (; idx >= startIdx; --idx) {
            c = (char)detailChunks[idx].getUnicodeEquivalent(text[idx]);
            if (!isWS(c) && !PdfChunk.noPrint(c)) {
                if (detailChunks[idx].isTab()
                        //Keep deprecated tab logic for backward compatibility...
                        && detailChunks[idx].isAttribute(Chunk.TABSETTINGS)) {
                    Object[] tab = (Object[])detailChunks[idx].getAttribute(Chunk.TAB);
                    boolean isWhitespace = (Boolean)tab[1];
                    if (isWhitespace)
                        continue;
                }
                break;
            }
        }
        return idx;
    }

    public int trimLeftEx(int startIdx, int endIdx) {
        int idx = startIdx;
        char c = 0;
        for (; idx <= endIdx; ++idx) {
            c = (char)detailChunks[idx].getUnicodeEquivalent(text[idx]);
            if (!isWS(c) && !PdfChunk.noPrint(c)) {
                if (detailChunks[idx].isTab()
                        //Keep deprecated tab logic for backward compatibility...
                        && detailChunks[idx].isAttribute(Chunk.TABSETTINGS)) {
                    Object[] tab = (Object[])detailChunks[idx].getAttribute(Chunk.TAB);
                    boolean isWhitespace = (Boolean)tab[1];
                    if (isWhitespace)
                        continue;
                }
                break;
            }
        }
        return idx;
    }

    public void reorder(int start, int end) {
        byte maxLevel = orderLevels[start];
        byte minLevel = maxLevel;
        byte onlyOddLevels = maxLevel;
        byte onlyEvenLevels = maxLevel;
        for (int k = start + 1; k <= end; ++k) {
            byte b = orderLevels[k];
            if (b > maxLevel)
                maxLevel = b;
            else if (b < minLevel)
                minLevel = b;
            onlyOddLevels &= b;
            onlyEvenLevels |= b;
        }
        if ((onlyEvenLevels & 1) == 0) // nothing to do
            return;
        if ((onlyOddLevels & 1) == 1) { // single inversion
            flip(start, end + 1);
            return;
        }
        minLevel |= 1;
        for (; maxLevel >= minLevel; --maxLevel) {
            int pstart = start;
            for (;;) {
                for (;pstart <= end; ++pstart) {
                    if (orderLevels[pstart] >= maxLevel)
                        break;
                }
                if (pstart > end)
                    break;
                int pend = pstart + 1;
                for (; pend <= end; ++pend) {
                    if (orderLevels[pend] < maxLevel)
                        break;
                }
                flip(pstart, pend);
                pstart = pend + 1;
            }
        }
    }

    public void flip(int start, int end) {
        int mid = (start + end) / 2;
        --end;
        for (; start < mid; ++start, --end) {
            int temp = indexChars[start];
            indexChars[start] = indexChars[end];
            indexChars[end] = temp;
        }
    }

    public static boolean isWS(char c) {
        return c <= ' ';
    }

    static {
        mirrorChars.put(0x0028, 0x0029); // LEFT PARENTHESIS
        mirrorChars.put(0x0029, 0x0028); // RIGHT PARENTHESIS
        mirrorChars.put(0x003C, 0x003E); // LESS-THAN SIGN
        mirrorChars.put(0x003E, 0x003C); // GREATER-THAN SIGN
        mirrorChars.put(0x005B, 0x005D); // LEFT SQUARE BRACKET
        mirrorChars.put(0x005D, 0x005B); // RIGHT SQUARE BRACKET
        mirrorChars.put(0x007B, 0x007D); // LEFT CURLY BRACKET
        mirrorChars.put(0x007D, 0x007B); // RIGHT CURLY BRACKET
        mirrorChars.put(0x00AB, 0x00BB); // LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
        mirrorChars.put(0x00BB, 0x00AB); // RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
        mirrorChars.put(0x2039, 0x203A); // SINGLE LEFT-POINTING ANGLE QUOTATION MARK
        mirrorChars.put(0x203A, 0x2039); // SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
        mirrorChars.put(0x2045, 0x2046); // LEFT SQUARE BRACKET WITH QUILL
        mirrorChars.put(0x2046, 0x2045); // RIGHT SQUARE BRACKET WITH QUILL
        mirrorChars.put(0x207D, 0x207E); // SUPERSCRIPT LEFT PARENTHESIS
        mirrorChars.put(0x207E, 0x207D); // SUPERSCRIPT RIGHT PARENTHESIS
        mirrorChars.put(0x208D, 0x208E); // SUBSCRIPT LEFT PARENTHESIS
        mirrorChars.put(0x208E, 0x208D); // SUBSCRIPT RIGHT PARENTHESIS
        mirrorChars.put(0x2208, 0x220B); // ELEMENT OF
        mirrorChars.put(0x2209, 0x220C); // NOT AN ELEMENT OF
        mirrorChars.put(0x220A, 0x220D); // SMALL ELEMENT OF
        mirrorChars.put(0x220B, 0x2208); // CONTAINS AS MEMBER
        mirrorChars.put(0x220C, 0x2209); // DOES NOT CONTAIN AS MEMBER
        mirrorChars.put(0x220D, 0x220A); // SMALL CONTAINS AS MEMBER
        mirrorChars.put(0x2215, 0x29F5); // DIVISION SLASH
        mirrorChars.put(0x223C, 0x223D); // TILDE OPERATOR
        mirrorChars.put(0x223D, 0x223C); // REVERSED TILDE
        mirrorChars.put(0x2243, 0x22CD); // ASYMPTOTICALLY EQUAL TO
        mirrorChars.put(0x2252, 0x2253); // APPROXIMATELY EQUAL TO OR THE IMAGE OF
        mirrorChars.put(0x2253, 0x2252); // IMAGE OF OR APPROXIMATELY EQUAL TO
        mirrorChars.put(0x2254, 0x2255); // COLON EQUALS
        mirrorChars.put(0x2255, 0x2254); // EQUALS COLON
        mirrorChars.put(0x2264, 0x2265); // LESS-THAN OR EQUAL TO
        mirrorChars.put(0x2265, 0x2264); // GREATER-THAN OR EQUAL TO
        mirrorChars.put(0x2266, 0x2267); // LESS-THAN OVER EQUAL TO
        mirrorChars.put(0x2267, 0x2266); // GREATER-THAN OVER EQUAL TO
        mirrorChars.put(0x2268, 0x2269); // [BEST FIT] LESS-THAN BUT NOT EQUAL TO
        mirrorChars.put(0x2269, 0x2268); // [BEST FIT] GREATER-THAN BUT NOT EQUAL TO
        mirrorChars.put(0x226A, 0x226B); // MUCH LESS-THAN
        mirrorChars.put(0x226B, 0x226A); // MUCH GREATER-THAN
        mirrorChars.put(0x226E, 0x226F); // [BEST FIT] NOT LESS-THAN
        mirrorChars.put(0x226F, 0x226E); // [BEST FIT] NOT GREATER-THAN
        mirrorChars.put(0x2270, 0x2271); // [BEST FIT] NEITHER LESS-THAN NOR EQUAL TO
        mirrorChars.put(0x2271, 0x2270); // [BEST FIT] NEITHER GREATER-THAN NOR EQUAL TO
        mirrorChars.put(0x2272, 0x2273); // [BEST FIT] LESS-THAN OR EQUIVALENT TO
        mirrorChars.put(0x2273, 0x2272); // [BEST FIT] GREATER-THAN OR EQUIVALENT TO
        mirrorChars.put(0x2274, 0x2275); // [BEST FIT] NEITHER LESS-THAN NOR EQUIVALENT TO
        mirrorChars.put(0x2275, 0x2274); // [BEST FIT] NEITHER GREATER-THAN NOR EQUIVALENT TO
        mirrorChars.put(0x2276, 0x2277); // LESS-THAN OR GREATER-THAN
        mirrorChars.put(0x2277, 0x2276); // GREATER-THAN OR LESS-THAN
        mirrorChars.put(0x2278, 0x2279); // NEITHER LESS-THAN NOR GREATER-THAN
        mirrorChars.put(0x2279, 0x2278); // NEITHER GREATER-THAN NOR LESS-THAN
        mirrorChars.put(0x227A, 0x227B); // PRECEDES
        mirrorChars.put(0x227B, 0x227A); // SUCCEEDS
        mirrorChars.put(0x227C, 0x227D); // PRECEDES OR EQUAL TO
        mirrorChars.put(0x227D, 0x227C); // SUCCEEDS OR EQUAL TO
        mirrorChars.put(0x227E, 0x227F); // [BEST FIT] PRECEDES OR EQUIVALENT TO
        mirrorChars.put(0x227F, 0x227E); // [BEST FIT] SUCCEEDS OR EQUIVALENT TO
        mirrorChars.put(0x2280, 0x2281); // [BEST FIT] DOES NOT PRECEDE
        mirrorChars.put(0x2281, 0x2280); // [BEST FIT] DOES NOT SUCCEED
        mirrorChars.put(0x2282, 0x2283); // SUBSET OF
        mirrorChars.put(0x2283, 0x2282); // SUPERSET OF
        mirrorChars.put(0x2284, 0x2285); // [BEST FIT] NOT A SUBSET OF
        mirrorChars.put(0x2285, 0x2284); // [BEST FIT] NOT A SUPERSET OF
        mirrorChars.put(0x2286, 0x2287); // SUBSET OF OR EQUAL TO
        mirrorChars.put(0x2287, 0x2286); // SUPERSET OF OR EQUAL TO
        mirrorChars.put(0x2288, 0x2289); // [BEST FIT] NEITHER A SUBSET OF NOR EQUAL TO
        mirrorChars.put(0x2289, 0x2288); // [BEST FIT] NEITHER A SUPERSET OF NOR EQUAL TO
        mirrorChars.put(0x228A, 0x228B); // [BEST FIT] SUBSET OF WITH NOT EQUAL TO
        mirrorChars.put(0x228B, 0x228A); // [BEST FIT] SUPERSET OF WITH NOT EQUAL TO
        mirrorChars.put(0x228F, 0x2290); // SQUARE IMAGE OF
        mirrorChars.put(0x2290, 0x228F); // SQUARE ORIGINAL OF
        mirrorChars.put(0x2291, 0x2292); // SQUARE IMAGE OF OR EQUAL TO
        mirrorChars.put(0x2292, 0x2291); // SQUARE ORIGINAL OF OR EQUAL TO
        mirrorChars.put(0x2298, 0x29B8); // CIRCLED DIVISION SLASH
        mirrorChars.put(0x22A2, 0x22A3); // RIGHT TACK
        mirrorChars.put(0x22A3, 0x22A2); // LEFT TACK
        mirrorChars.put(0x22A6, 0x2ADE); // ASSERTION
        mirrorChars.put(0x22A8, 0x2AE4); // TRUE
        mirrorChars.put(0x22A9, 0x2AE3); // FORCES
        mirrorChars.put(0x22AB, 0x2AE5); // DOUBLE VERTICAL BAR DOUBLE RIGHT TURNSTILE
        mirrorChars.put(0x22B0, 0x22B1); // PRECEDES UNDER RELATION
        mirrorChars.put(0x22B1, 0x22B0); // SUCCEEDS UNDER RELATION
        mirrorChars.put(0x22B2, 0x22B3); // NORMAL SUBGROUP OF
        mirrorChars.put(0x22B3, 0x22B2); // CONTAINS AS NORMAL SUBGROUP
        mirrorChars.put(0x22B4, 0x22B5); // NORMAL SUBGROUP OF OR EQUAL TO
        mirrorChars.put(0x22B5, 0x22B4); // CONTAINS AS NORMAL SUBGROUP OR EQUAL TO
        mirrorChars.put(0x22B6, 0x22B7); // ORIGINAL OF
        mirrorChars.put(0x22B7, 0x22B6); // IMAGE OF
        mirrorChars.put(0x22C9, 0x22CA); // LEFT NORMAL FACTOR SEMIDIRECT PRODUCT
        mirrorChars.put(0x22CA, 0x22C9); // RIGHT NORMAL FACTOR SEMIDIRECT PRODUCT
        mirrorChars.put(0x22CB, 0x22CC); // LEFT SEMIDIRECT PRODUCT
        mirrorChars.put(0x22CC, 0x22CB); // RIGHT SEMIDIRECT PRODUCT
        mirrorChars.put(0x22CD, 0x2243); // REVERSED TILDE EQUALS
        mirrorChars.put(0x22D0, 0x22D1); // DOUBLE SUBSET
        mirrorChars.put(0x22D1, 0x22D0); // DOUBLE SUPERSET
        mirrorChars.put(0x22D6, 0x22D7); // LESS-THAN WITH DOT
        mirrorChars.put(0x22D7, 0x22D6); // GREATER-THAN WITH DOT
        mirrorChars.put(0x22D8, 0x22D9); // VERY MUCH LESS-THAN
        mirrorChars.put(0x22D9, 0x22D8); // VERY MUCH GREATER-THAN
        mirrorChars.put(0x22DA, 0x22DB); // LESS-THAN EQUAL TO OR GREATER-THAN
        mirrorChars.put(0x22DB, 0x22DA); // GREATER-THAN EQUAL TO OR LESS-THAN
        mirrorChars.put(0x22DC, 0x22DD); // EQUAL TO OR LESS-THAN
        mirrorChars.put(0x22DD, 0x22DC); // EQUAL TO OR GREATER-THAN
        mirrorChars.put(0x22DE, 0x22DF); // EQUAL TO OR PRECEDES
        mirrorChars.put(0x22DF, 0x22DE); // EQUAL TO OR SUCCEEDS
        mirrorChars.put(0x22E0, 0x22E1); // [BEST FIT] DOES NOT PRECEDE OR EQUAL
        mirrorChars.put(0x22E1, 0x22E0); // [BEST FIT] DOES NOT SUCCEED OR EQUAL
        mirrorChars.put(0x22E2, 0x22E3); // [BEST FIT] NOT SQUARE IMAGE OF OR EQUAL TO
        mirrorChars.put(0x22E3, 0x22E2); // [BEST FIT] NOT SQUARE ORIGINAL OF OR EQUAL TO
        mirrorChars.put(0x22E4, 0x22E5); // [BEST FIT] SQUARE IMAGE OF OR NOT EQUAL TO
        mirrorChars.put(0x22E5, 0x22E4); // [BEST FIT] SQUARE ORIGINAL OF OR NOT EQUAL TO
        mirrorChars.put(0x22E6, 0x22E7); // [BEST FIT] LESS-THAN BUT NOT EQUIVALENT TO
        mirrorChars.put(0x22E7, 0x22E6); // [BEST FIT] GREATER-THAN BUT NOT EQUIVALENT TO
        mirrorChars.put(0x22E8, 0x22E9); // [BEST FIT] PRECEDES BUT NOT EQUIVALENT TO
        mirrorChars.put(0x22E9, 0x22E8); // [BEST FIT] SUCCEEDS BUT NOT EQUIVALENT TO
        mirrorChars.put(0x22EA, 0x22EB); // [BEST FIT] NOT NORMAL SUBGROUP OF
        mirrorChars.put(0x22EB, 0x22EA); // [BEST FIT] DOES NOT CONTAIN AS NORMAL SUBGROUP
        mirrorChars.put(0x22EC, 0x22ED); // [BEST FIT] NOT NORMAL SUBGROUP OF OR EQUAL TO
        mirrorChars.put(0x22ED, 0x22EC); // [BEST FIT] DOES NOT CONTAIN AS NORMAL SUBGROUP OR EQUAL
        mirrorChars.put(0x22F0, 0x22F1); // UP RIGHT DIAGONAL ELLIPSIS
        mirrorChars.put(0x22F1, 0x22F0); // DOWN RIGHT DIAGONAL ELLIPSIS
        mirrorChars.put(0x22F2, 0x22FA); // ELEMENT OF WITH LONG HORIZONTAL STROKE
        mirrorChars.put(0x22F3, 0x22FB); // ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
        mirrorChars.put(0x22F4, 0x22FC); // SMALL ELEMENT OF WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
        mirrorChars.put(0x22F6, 0x22FD); // ELEMENT OF WITH OVERBAR
        mirrorChars.put(0x22F7, 0x22FE); // SMALL ELEMENT OF WITH OVERBAR
        mirrorChars.put(0x22FA, 0x22F2); // CONTAINS WITH LONG HORIZONTAL STROKE
        mirrorChars.put(0x22FB, 0x22F3); // CONTAINS WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
        mirrorChars.put(0x22FC, 0x22F4); // SMALL CONTAINS WITH VERTICAL BAR AT END OF HORIZONTAL STROKE
        mirrorChars.put(0x22FD, 0x22F6); // CONTAINS WITH OVERBAR
        mirrorChars.put(0x22FE, 0x22F7); // SMALL CONTAINS WITH OVERBAR
        mirrorChars.put(0x2308, 0x2309); // LEFT CEILING
        mirrorChars.put(0x2309, 0x2308); // RIGHT CEILING
        mirrorChars.put(0x230A, 0x230B); // LEFT FLOOR
        mirrorChars.put(0x230B, 0x230A); // RIGHT FLOOR
        mirrorChars.put(0x2329, 0x232A); // LEFT-POINTING ANGLE BRACKET
        mirrorChars.put(0x232A, 0x2329); // RIGHT-POINTING ANGLE BRACKET
        mirrorChars.put(0x2768, 0x2769); // MEDIUM LEFT PARENTHESIS ORNAMENT
        mirrorChars.put(0x2769, 0x2768); // MEDIUM RIGHT PARENTHESIS ORNAMENT
        mirrorChars.put(0x276A, 0x276B); // MEDIUM FLATTENED LEFT PARENTHESIS ORNAMENT
        mirrorChars.put(0x276B, 0x276A); // MEDIUM FLATTENED RIGHT PARENTHESIS ORNAMENT
        mirrorChars.put(0x276C, 0x276D); // MEDIUM LEFT-POINTING ANGLE BRACKET ORNAMENT
        mirrorChars.put(0x276D, 0x276C); // MEDIUM RIGHT-POINTING ANGLE BRACKET ORNAMENT
        mirrorChars.put(0x276E, 0x276F); // HEAVY LEFT-POINTING ANGLE QUOTATION MARK ORNAMENT
        mirrorChars.put(0x276F, 0x276E); // HEAVY RIGHT-POINTING ANGLE QUOTATION MARK ORNAMENT
        mirrorChars.put(0x2770, 0x2771); // HEAVY LEFT-POINTING ANGLE BRACKET ORNAMENT
        mirrorChars.put(0x2771, 0x2770); // HEAVY RIGHT-POINTING ANGLE BRACKET ORNAMENT
        mirrorChars.put(0x2772, 0x2773); // LIGHT LEFT TORTOISE SHELL BRACKET
        mirrorChars.put(0x2773, 0x2772); // LIGHT RIGHT TORTOISE SHELL BRACKET
        mirrorChars.put(0x2774, 0x2775); // MEDIUM LEFT CURLY BRACKET ORNAMENT
        mirrorChars.put(0x2775, 0x2774); // MEDIUM RIGHT CURLY BRACKET ORNAMENT
        mirrorChars.put(0x27D5, 0x27D6); // LEFT OUTER JOIN
        mirrorChars.put(0x27D6, 0x27D5); // RIGHT OUTER JOIN
        mirrorChars.put(0x27DD, 0x27DE); // LONG RIGHT TACK
        mirrorChars.put(0x27DE, 0x27DD); // LONG LEFT TACK
        mirrorChars.put(0x27E2, 0x27E3); // WHITE CONCAVE-SIDED DIAMOND WITH LEFTWARDS TICK
        mirrorChars.put(0x27E3, 0x27E2); // WHITE CONCAVE-SIDED DIAMOND WITH RIGHTWARDS TICK
        mirrorChars.put(0x27E4, 0x27E5); // WHITE SQUARE WITH LEFTWARDS TICK
        mirrorChars.put(0x27E5, 0x27E4); // WHITE SQUARE WITH RIGHTWARDS TICK
        mirrorChars.put(0x27E6, 0x27E7); // MATHEMATICAL LEFT WHITE SQUARE BRACKET
        mirrorChars.put(0x27E7, 0x27E6); // MATHEMATICAL RIGHT WHITE SQUARE BRACKET
        mirrorChars.put(0x27E8, 0x27E9); // MATHEMATICAL LEFT ANGLE BRACKET
        mirrorChars.put(0x27E9, 0x27E8); // MATHEMATICAL RIGHT ANGLE BRACKET
        mirrorChars.put(0x27EA, 0x27EB); // MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
        mirrorChars.put(0x27EB, 0x27EA); // MATHEMATICAL RIGHT DOUBLE ANGLE BRACKET
        mirrorChars.put(0x2983, 0x2984); // LEFT WHITE CURLY BRACKET
        mirrorChars.put(0x2984, 0x2983); // RIGHT WHITE CURLY BRACKET
        mirrorChars.put(0x2985, 0x2986); // LEFT WHITE PARENTHESIS
        mirrorChars.put(0x2986, 0x2985); // RIGHT WHITE PARENTHESIS
        mirrorChars.put(0x2987, 0x2988); // Z NOTATION LEFT IMAGE BRACKET
        mirrorChars.put(0x2988, 0x2987); // Z NOTATION RIGHT IMAGE BRACKET
        mirrorChars.put(0x2989, 0x298A); // Z NOTATION LEFT BINDING BRACKET
        mirrorChars.put(0x298A, 0x2989); // Z NOTATION RIGHT BINDING BRACKET
        mirrorChars.put(0x298B, 0x298C); // LEFT SQUARE BRACKET WITH UNDERBAR
        mirrorChars.put(0x298C, 0x298B); // RIGHT SQUARE BRACKET WITH UNDERBAR
        mirrorChars.put(0x298D, 0x2990); // LEFT SQUARE BRACKET WITH TICK IN TOP CORNER
        mirrorChars.put(0x298E, 0x298F); // RIGHT SQUARE BRACKET WITH TICK IN BOTTOM CORNER
        mirrorChars.put(0x298F, 0x298E); // LEFT SQUARE BRACKET WITH TICK IN BOTTOM CORNER
        mirrorChars.put(0x2990, 0x298D); // RIGHT SQUARE BRACKET WITH TICK IN TOP CORNER
        mirrorChars.put(0x2991, 0x2992); // LEFT ANGLE BRACKET WITH DOT
        mirrorChars.put(0x2992, 0x2991); // RIGHT ANGLE BRACKET WITH DOT
        mirrorChars.put(0x2993, 0x2994); // LEFT ARC LESS-THAN BRACKET
        mirrorChars.put(0x2994, 0x2993); // RIGHT ARC GREATER-THAN BRACKET
        mirrorChars.put(0x2995, 0x2996); // DOUBLE LEFT ARC GREATER-THAN BRACKET
        mirrorChars.put(0x2996, 0x2995); // DOUBLE RIGHT ARC LESS-THAN BRACKET
        mirrorChars.put(0x2997, 0x2998); // LEFT BLACK TORTOISE SHELL BRACKET
        mirrorChars.put(0x2998, 0x2997); // RIGHT BLACK TORTOISE SHELL BRACKET
        mirrorChars.put(0x29B8, 0x2298); // CIRCLED REVERSE SOLIDUS
        mirrorChars.put(0x29C0, 0x29C1); // CIRCLED LESS-THAN
        mirrorChars.put(0x29C1, 0x29C0); // CIRCLED GREATER-THAN
        mirrorChars.put(0x29C4, 0x29C5); // SQUARED RISING DIAGONAL SLASH
        mirrorChars.put(0x29C5, 0x29C4); // SQUARED FALLING DIAGONAL SLASH
        mirrorChars.put(0x29CF, 0x29D0); // LEFT TRIANGLE BESIDE VERTICAL BAR
        mirrorChars.put(0x29D0, 0x29CF); // VERTICAL BAR BESIDE RIGHT TRIANGLE
        mirrorChars.put(0x29D1, 0x29D2); // BOWTIE WITH LEFT HALF BLACK
        mirrorChars.put(0x29D2, 0x29D1); // BOWTIE WITH RIGHT HALF BLACK
        mirrorChars.put(0x29D4, 0x29D5); // TIMES WITH LEFT HALF BLACK
        mirrorChars.put(0x29D5, 0x29D4); // TIMES WITH RIGHT HALF BLACK
        mirrorChars.put(0x29D8, 0x29D9); // LEFT WIGGLY FENCE
        mirrorChars.put(0x29D9, 0x29D8); // RIGHT WIGGLY FENCE
        mirrorChars.put(0x29DA, 0x29DB); // LEFT DOUBLE WIGGLY FENCE
        mirrorChars.put(0x29DB, 0x29DA); // RIGHT DOUBLE WIGGLY FENCE
        mirrorChars.put(0x29F5, 0x2215); // REVERSE SOLIDUS OPERATOR
        mirrorChars.put(0x29F8, 0x29F9); // BIG SOLIDUS
        mirrorChars.put(0x29F9, 0x29F8); // BIG REVERSE SOLIDUS
        mirrorChars.put(0x29FC, 0x29FD); // LEFT-POINTING CURVED ANGLE BRACKET
        mirrorChars.put(0x29FD, 0x29FC); // RIGHT-POINTING CURVED ANGLE BRACKET
        mirrorChars.put(0x2A2B, 0x2A2C); // MINUS SIGN WITH FALLING DOTS
        mirrorChars.put(0x2A2C, 0x2A2B); // MINUS SIGN WITH RISING DOTS
        mirrorChars.put(0x2A2D, 0x2A2C); // PLUS SIGN IN LEFT HALF CIRCLE
        mirrorChars.put(0x2A2E, 0x2A2D); // PLUS SIGN IN RIGHT HALF CIRCLE
        mirrorChars.put(0x2A34, 0x2A35); // MULTIPLICATION SIGN IN LEFT HALF CIRCLE
        mirrorChars.put(0x2A35, 0x2A34); // MULTIPLICATION SIGN IN RIGHT HALF CIRCLE
        mirrorChars.put(0x2A3C, 0x2A3D); // INTERIOR PRODUCT
        mirrorChars.put(0x2A3D, 0x2A3C); // RIGHTHAND INTERIOR PRODUCT
        mirrorChars.put(0x2A64, 0x2A65); // Z NOTATION DOMAIN ANTIRESTRICTION
        mirrorChars.put(0x2A65, 0x2A64); // Z NOTATION RANGE ANTIRESTRICTION
        mirrorChars.put(0x2A79, 0x2A7A); // LESS-THAN WITH CIRCLE INSIDE
        mirrorChars.put(0x2A7A, 0x2A79); // GREATER-THAN WITH CIRCLE INSIDE
        mirrorChars.put(0x2A7D, 0x2A7E); // LESS-THAN OR SLANTED EQUAL TO
        mirrorChars.put(0x2A7E, 0x2A7D); // GREATER-THAN OR SLANTED EQUAL TO
        mirrorChars.put(0x2A7F, 0x2A80); // LESS-THAN OR SLANTED EQUAL TO WITH DOT INSIDE
        mirrorChars.put(0x2A80, 0x2A7F); // GREATER-THAN OR SLANTED EQUAL TO WITH DOT INSIDE
        mirrorChars.put(0x2A81, 0x2A82); // LESS-THAN OR SLANTED EQUAL TO WITH DOT ABOVE
        mirrorChars.put(0x2A82, 0x2A81); // GREATER-THAN OR SLANTED EQUAL TO WITH DOT ABOVE
        mirrorChars.put(0x2A83, 0x2A84); // LESS-THAN OR SLANTED EQUAL TO WITH DOT ABOVE RIGHT
        mirrorChars.put(0x2A84, 0x2A83); // GREATER-THAN OR SLANTED EQUAL TO WITH DOT ABOVE LEFT
        mirrorChars.put(0x2A8B, 0x2A8C); // LESS-THAN ABOVE DOUBLE-LINE EQUAL ABOVE GREATER-THAN
        mirrorChars.put(0x2A8C, 0x2A8B); // GREATER-THAN ABOVE DOUBLE-LINE EQUAL ABOVE LESS-THAN
        mirrorChars.put(0x2A91, 0x2A92); // LESS-THAN ABOVE GREATER-THAN ABOVE DOUBLE-LINE EQUAL
        mirrorChars.put(0x2A92, 0x2A91); // GREATER-THAN ABOVE LESS-THAN ABOVE DOUBLE-LINE EQUAL
        mirrorChars.put(0x2A93, 0x2A94); // LESS-THAN ABOVE SLANTED EQUAL ABOVE GREATER-THAN ABOVE SLANTED EQUAL
        mirrorChars.put(0x2A94, 0x2A93); // GREATER-THAN ABOVE SLANTED EQUAL ABOVE LESS-THAN ABOVE SLANTED EQUAL
        mirrorChars.put(0x2A95, 0x2A96); // SLANTED EQUAL TO OR LESS-THAN
        mirrorChars.put(0x2A96, 0x2A95); // SLANTED EQUAL TO OR GREATER-THAN
        mirrorChars.put(0x2A97, 0x2A98); // SLANTED EQUAL TO OR LESS-THAN WITH DOT INSIDE
        mirrorChars.put(0x2A98, 0x2A97); // SLANTED EQUAL TO OR GREATER-THAN WITH DOT INSIDE
        mirrorChars.put(0x2A99, 0x2A9A); // DOUBLE-LINE EQUAL TO OR LESS-THAN
        mirrorChars.put(0x2A9A, 0x2A99); // DOUBLE-LINE EQUAL TO OR GREATER-THAN
        mirrorChars.put(0x2A9B, 0x2A9C); // DOUBLE-LINE SLANTED EQUAL TO OR LESS-THAN
        mirrorChars.put(0x2A9C, 0x2A9B); // DOUBLE-LINE SLANTED EQUAL TO OR GREATER-THAN
        mirrorChars.put(0x2AA1, 0x2AA2); // DOUBLE NESTED LESS-THAN
        mirrorChars.put(0x2AA2, 0x2AA1); // DOUBLE NESTED GREATER-THAN
        mirrorChars.put(0x2AA6, 0x2AA7); // LESS-THAN CLOSED BY CURVE
        mirrorChars.put(0x2AA7, 0x2AA6); // GREATER-THAN CLOSED BY CURVE
        mirrorChars.put(0x2AA8, 0x2AA9); // LESS-THAN CLOSED BY CURVE ABOVE SLANTED EQUAL
        mirrorChars.put(0x2AA9, 0x2AA8); // GREATER-THAN CLOSED BY CURVE ABOVE SLANTED EQUAL
        mirrorChars.put(0x2AAA, 0x2AAB); // SMALLER THAN
        mirrorChars.put(0x2AAB, 0x2AAA); // LARGER THAN
        mirrorChars.put(0x2AAC, 0x2AAD); // SMALLER THAN OR EQUAL TO
        mirrorChars.put(0x2AAD, 0x2AAC); // LARGER THAN OR EQUAL TO
        mirrorChars.put(0x2AAF, 0x2AB0); // PRECEDES ABOVE SINGLE-LINE EQUALS SIGN
        mirrorChars.put(0x2AB0, 0x2AAF); // SUCCEEDS ABOVE SINGLE-LINE EQUALS SIGN
        mirrorChars.put(0x2AB3, 0x2AB4); // PRECEDES ABOVE EQUALS SIGN
        mirrorChars.put(0x2AB4, 0x2AB3); // SUCCEEDS ABOVE EQUALS SIGN
        mirrorChars.put(0x2ABB, 0x2ABC); // DOUBLE PRECEDES
        mirrorChars.put(0x2ABC, 0x2ABB); // DOUBLE SUCCEEDS
        mirrorChars.put(0x2ABD, 0x2ABE); // SUBSET WITH DOT
        mirrorChars.put(0x2ABE, 0x2ABD); // SUPERSET WITH DOT
        mirrorChars.put(0x2ABF, 0x2AC0); // SUBSET WITH PLUS SIGN BELOW
        mirrorChars.put(0x2AC0, 0x2ABF); // SUPERSET WITH PLUS SIGN BELOW
        mirrorChars.put(0x2AC1, 0x2AC2); // SUBSET WITH MULTIPLICATION SIGN BELOW
        mirrorChars.put(0x2AC2, 0x2AC1); // SUPERSET WITH MULTIPLICATION SIGN BELOW
        mirrorChars.put(0x2AC3, 0x2AC4); // SUBSET OF OR EQUAL TO WITH DOT ABOVE
        mirrorChars.put(0x2AC4, 0x2AC3); // SUPERSET OF OR EQUAL TO WITH DOT ABOVE
        mirrorChars.put(0x2AC5, 0x2AC6); // SUBSET OF ABOVE EQUALS SIGN
        mirrorChars.put(0x2AC6, 0x2AC5); // SUPERSET OF ABOVE EQUALS SIGN
        mirrorChars.put(0x2ACD, 0x2ACE); // SQUARE LEFT OPEN BOX OPERATOR
        mirrorChars.put(0x2ACE, 0x2ACD); // SQUARE RIGHT OPEN BOX OPERATOR
        mirrorChars.put(0x2ACF, 0x2AD0); // CLOSED SUBSET
        mirrorChars.put(0x2AD0, 0x2ACF); // CLOSED SUPERSET
        mirrorChars.put(0x2AD1, 0x2AD2); // CLOSED SUBSET OR EQUAL TO
        mirrorChars.put(0x2AD2, 0x2AD1); // CLOSED SUPERSET OR EQUAL TO
        mirrorChars.put(0x2AD3, 0x2AD4); // SUBSET ABOVE SUPERSET
        mirrorChars.put(0x2AD4, 0x2AD3); // SUPERSET ABOVE SUBSET
        mirrorChars.put(0x2AD5, 0x2AD6); // SUBSET ABOVE SUBSET
        mirrorChars.put(0x2AD6, 0x2AD5); // SUPERSET ABOVE SUPERSET
        mirrorChars.put(0x2ADE, 0x22A6); // SHORT LEFT TACK
        mirrorChars.put(0x2AE3, 0x22A9); // DOUBLE VERTICAL BAR LEFT TURNSTILE
        mirrorChars.put(0x2AE4, 0x22A8); // VERTICAL BAR DOUBLE LEFT TURNSTILE
        mirrorChars.put(0x2AE5, 0x22AB); // DOUBLE VERTICAL BAR DOUBLE LEFT TURNSTILE
        mirrorChars.put(0x2AEC, 0x2AED); // DOUBLE STROKE NOT SIGN
        mirrorChars.put(0x2AED, 0x2AEC); // REVERSED DOUBLE STROKE NOT SIGN
        mirrorChars.put(0x2AF7, 0x2AF8); // TRIPLE NESTED LESS-THAN
        mirrorChars.put(0x2AF8, 0x2AF7); // TRIPLE NESTED GREATER-THAN
        mirrorChars.put(0x2AF9, 0x2AFA); // DOUBLE-LINE SLANTED LESS-THAN OR EQUAL TO
        mirrorChars.put(0x2AFA, 0x2AF9); // DOUBLE-LINE SLANTED GREATER-THAN OR EQUAL TO
        mirrorChars.put(0x3008, 0x3009); // LEFT ANGLE BRACKET
        mirrorChars.put(0x3009, 0x3008); // RIGHT ANGLE BRACKET
        mirrorChars.put(0x300A, 0x300B); // LEFT DOUBLE ANGLE BRACKET
        mirrorChars.put(0x300B, 0x300A); // RIGHT DOUBLE ANGLE BRACKET
        mirrorChars.put(0x300C, 0x300D); // [BEST FIT] LEFT CORNER BRACKET
        mirrorChars.put(0x300D, 0x300C); // [BEST FIT] RIGHT CORNER BRACKET
        mirrorChars.put(0x300E, 0x300F); // [BEST FIT] LEFT WHITE CORNER BRACKET
        mirrorChars.put(0x300F, 0x300E); // [BEST FIT] RIGHT WHITE CORNER BRACKET
        mirrorChars.put(0x3010, 0x3011); // LEFT BLACK LENTICULAR BRACKET
        mirrorChars.put(0x3011, 0x3010); // RIGHT BLACK LENTICULAR BRACKET
        mirrorChars.put(0x3014, 0x3015); // LEFT TORTOISE SHELL BRACKET
        mirrorChars.put(0x3015, 0x3014); // RIGHT TORTOISE SHELL BRACKET
        mirrorChars.put(0x3016, 0x3017); // LEFT WHITE LENTICULAR BRACKET
        mirrorChars.put(0x3017, 0x3016); // RIGHT WHITE LENTICULAR BRACKET
        mirrorChars.put(0x3018, 0x3019); // LEFT WHITE TORTOISE SHELL BRACKET
        mirrorChars.put(0x3019, 0x3018); // RIGHT WHITE TORTOISE SHELL BRACKET
        mirrorChars.put(0x301A, 0x301B); // LEFT WHITE SQUARE BRACKET
        mirrorChars.put(0x301B, 0x301A); // RIGHT WHITE SQUARE BRACKET
        mirrorChars.put(0xFF08, 0xFF09); // FULLWIDTH LEFT PARENTHESIS
        mirrorChars.put(0xFF09, 0xFF08); // FULLWIDTH RIGHT PARENTHESIS
        mirrorChars.put(0xFF1C, 0xFF1E); // FULLWIDTH LESS-THAN SIGN
        mirrorChars.put(0xFF1E, 0xFF1C); // FULLWIDTH GREATER-THAN SIGN
        mirrorChars.put(0xFF3B, 0xFF3D); // FULLWIDTH LEFT SQUARE BRACKET
        mirrorChars.put(0xFF3D, 0xFF3B); // FULLWIDTH RIGHT SQUARE BRACKET
        mirrorChars.put(0xFF5B, 0xFF5D); // FULLWIDTH LEFT CURLY BRACKET
        mirrorChars.put(0xFF5D, 0xFF5B); // FULLWIDTH RIGHT CURLY BRACKET
        mirrorChars.put(0xFF5F, 0xFF60); // FULLWIDTH LEFT WHITE PARENTHESIS
        mirrorChars.put(0xFF60, 0xFF5F); // FULLWIDTH RIGHT WHITE PARENTHESIS
        mirrorChars.put(0xFF62, 0xFF63); // [BEST FIT] HALFWIDTH LEFT CORNER BRACKET
        mirrorChars.put(0xFF63, 0xFF62); // [BEST FIT] HALFWIDTH RIGHT CORNER BRACKET
    }
    
    /**
     * Method that changes a String with Arabic characters into a String in which the ligatures are made.
     * @param s	the original String
     * @param runDirection
     * @param arabicOptions
     * @return the String with the ligatures
     */
    public static String processLTR(String s, int runDirection, int arabicOptions) {
    	BidiLine bidi = new BidiLine();
    	bidi.addChunk(new PdfChunk(new Chunk(s), null));
    	bidi.arabicOptions = arabicOptions;
    	bidi.getParagraph(runDirection);
    	ArrayList<PdfChunk> arr = bidi.createArrayOfPdfChunks(0, bidi.totalTextLength - 1);
    	StringBuilder sb = new StringBuilder();
    	for (PdfChunk ck : arr) {
    		sb.append(ck.toString());
    	}
    	return sb.toString();
    }
}

com/itextpdf/text/pdf/BidiLine.java

 

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2021-07-03, 48049👍, 0💬