/*
* Copyright (c) 2016 Vivid Solutions.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.jtstest.util;
/**
* Cleans text strings which are supposed
* to contain valid text for Geometries
* (either WKB, WKB, or GML)
*
* @author mbdavis
*
*/
public class GeometryTextCleaner
{
public static final String WKT_SYMBOLS = "(),.-";
public static String cleanWKT(String input)
{
return clean(input, WKT_SYMBOLS);
}
private static String clean(String input, String allowedSymbols)
{
StringBuffer buf = new StringBuffer();
for (int i = 0; i < input.length(); i++) {
char c = input.charAt(i);
if (isAllowed(c, allowedSymbols))
buf.append(c);
}
return buf.toString();
}
private static boolean isAllowed(char c, String allowedSymbols)
{
if (Character.isWhitespace(c)) return true;
if (Character.isLetterOrDigit(c)) return true;
if (allowedSymbols.indexOf(c) >= 0) return true;
return false;
}
}