org.jpedal.io.types.PdfArray Maven / Gradle / Ivy

/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2017 IDRsolutions and Contributors.
 *
 * This file is part of JPedal/JPDF2HTML5
 *
     This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


 *
 * ---------------
 * PdfArray.java
 * ---------------
 */
package org.jpedal.io.types;

public class PdfArray {


    /**
     * @param value
     * @return
     */
    public static float[] convertToFloatArray(final String value) {

        final char[] bts = value.toCharArray();

        final float[] f;
        int fPointer = 0, wStart;

        char[] buffer;

        final int len = bts.length;
        int ptr = 0;

        //create array which must fit all items
        f = new float[len];

        //find the first [
        while (ptr < len && bts[ptr] != '[') {
            ptr++;
        }

        // in case first '[' is missing start at the begging of bts
        if (ptr == bts.length) {
            ptr = 0;
        } else {
            ptr++;
        }

        while (ptr < len) {

            //ignore any spaces
            while (ptr < len && bts[ptr] == ' ') {
                ptr++;
            }

            //set start and find next space,] or end
            wStart = ptr;

            while (ptr < len && bts[ptr] != ' ' && bts[ptr] != ']') {
                ptr++;
            }

            final int valLen = ptr - wStart;

            //ensure exit or convert to float
            if (valLen < 1) {
                ptr = len;
            } else {
                //log value and repeat above until end
                buffer = new char[valLen];

                for (int t = 0; wStart < ptr; wStart++) {
                    buffer[t] = bts[wStart];
                    t++;
                }

                f[fPointer] = ConvertToFloat.convert(buffer);
                fPointer++;
            }
        }

        final float[] toBeReturned = new float[fPointer];

        System.arraycopy(f, 0, toBeReturned, 0, fPointer);

        return toBeReturned;
    }
}