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package prompto.intrinsic;

import java.util.Collection;
import java.util.Iterator;

public abstract class PromptoString {

	public static String multiply(String s, int count) {
		char[] src = s.toCharArray();
		char[] cc = new char[count * src.length];
		for (int i = 0; i < count; i++)
			System.arraycopy(src, 0, cc, i * src.length, src.length);
		return new String(cc);
	}
	
	public static boolean contains(String s, Object o) {
		if(o instanceof java.lang.String)
			return s.contains((java.lang.String)o);
		else if(o instanceof java.lang.Character)
			return s.indexOf(((java.lang.Character)o).charValue())>=0;
		else
			throw new IllegalArgumentException(o.getClass().getName());
	}

	public static boolean containsAll(String s, Object o) {
		if(o instanceof java.lang.String)
			return containsAll(s, (java.lang.String)o);
		else if(o instanceof Collection)
			return containsAll(s, (Collection)o);
		else
			throw new IllegalArgumentException(o.getClass().getName());
	}

	private static boolean containsAll(String s, String o) {
		for(char c : o.toCharArray()) {
			if(s.indexOf(c)<0)
				return false;
		}
		return true;
	}

	private static boolean containsAll(String s, Collection items) {
		for(Object item : items) {
			if(!contains(s, item))
				return false;
		}
		return true;
	}

	public static boolean containsAny(String s, Object o) {
		if(o instanceof java.lang.String)
			return containsAny(s, (java.lang.String)o);
		else if(o instanceof Collection)
			return containsAny(s, (Collection)o);
		else
			throw new IllegalArgumentException(o.getClass().getName());
	}
	
	private static boolean containsAny(String s, String o) {
		for(char c : o.toCharArray()) {
			if(s.indexOf(c)>=0)
				return true;
		}
		return false;
	}

	private static boolean containsAny(String s, Collection items) {
		for(Object item : items) {
			if(contains(s, item))
				return true;
		}
		return false;
	}
	
	public static String convertObjectToExact(Object o) {
		if(o==null)
			return null;
		else
			return o.toString();
	}
	
	public static long indexOf(String s, String v, long i) {
		int r = s.indexOf(v, (int)i -1);
		return r + 1;
	}
	
	public static Iterable iterable(String s) {

		return new Iterable() {

			@Override
			public Iterator iterator() {
				
				return new Iterator() {
					
					int i = 0;
					
					@Override
					public boolean hasNext() {
						return i < s.length();
					}

					@Override
					public Character next() {
						return s.charAt(i++);
					}
					
				};
			}
		};
	}



}