stringscanner.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   StringScanner.java

package org.pf.text;


public class StringScanner
{

	public static final char END_REACHED = 65535;
	protected int length;
	protected int position;
	protected int pos_marker;
	protected char buffer[];

	public boolean endReached(char character)
	{
		return character == '\uFFFF';
	}

	public boolean endNotReached(char character)
	{
		return !endReached(character);
	}

	public StringScanner(String stringToScan)
	{
		length = 0;
		position = 0;
		pos_marker = 0;
		buffer = null;
		length = stringToScan.length();
		buffer = new char[length];
		stringToScan.getChars(0, length, buffer, 0);
	}

	public String toString()
	{
		return new String(buffer);
	}

	public void skip(int count)
	{
		position += count;
		if (position < 0)
			position = 0;
	}

	public char peek()
	{
		return position >= length() ? '\uFFFF' : buffer[position];
	}

	public char nextChar()
	{
		char next = peek();
		if (endNotReached(next))
			skip(1);
		return next;
	}

	public boolean atEnd()
	{
		return endReached(peek());
	}

	public boolean hasNext()
	{
		return !atEnd();
	}

	public char nextNoneWhitespaceChar()
	{
		char next;
		for (next = nextChar(); endNotReached(next) && Character.isWhitespace(next); next = nextChar());
		return next;
	}

	public int getPosition()
	{
		return position;
	}

	public void markPosition()
	{
		pos_marker = position;
	}

	public void restorePosition()
	{
		setPosition(pos_marker);
	}

	protected int length()
	{
		return length;
	}

	protected void setPosition(int pos)
	{
		if (pos >= 0 && pos <= length())
			position = pos;
	}
}