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Escher is a collection of libraries for X Window System written purely in Java.

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package gnu.util;

import java.util.StringTokenizer;


/**
 * Provide some handy static methods.
 */
public class Misc {
  public static final String VERSION = "0.2.0";


  //-- copy array

  public static double [] copy (double [] src, 
    int src_offset, int length) {

    double [] dst = new double [length];
    System.arraycopy (src, src_offset, dst, 0, length);
    return dst;
  }

  
  public static double [] copy (double [] src, int src_offset) {
    return copy (src, src_offset, src.length-src_offset);
  }


  public static float [] copy (float [] src, int src_offset, int length) {
    float [] dst = new float [length];
    System.arraycopy (src, src_offset, dst, 0, length);
    return dst;
  }

  
  public static float [] copy (float [] src, int src_offset) {
    return copy (src, src_offset, src.length-src_offset);
  }


  //-- linearize array

  public static float [] linearize (float [] [] src) {
    int s1 = src [0].length;
    int s2 = src.length;   
    float [] dst = new float [s1 * s2];
    
    for (int i=0; i 0)
      if (Character.isWhitespace (s.charAt (to))) to--;
      else break;

    return s.substring (from, to+1);
  }


  //-- system functions

  public static void sleep (long millis) {
    try {
      Thread.sleep (millis);
    } catch (InterruptedException e) {} // ignore
  }  
}