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/*
* Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.traccar.helper;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Parser {
private int position;
private Matcher matcher;
public Parser(Pattern pattern, String input) {
matcher = pattern.matcher(input);
}
public boolean matches() {
position = 1;
return matcher.matches();
}
public boolean find() {
position = 1;
return matcher.find();
}
public boolean hasNext() {
if (matcher.group(position) != null) {
return true;
} else {
position++;
return false;
}
}
public String next() {
return matcher.group(position++);
}
public int nextInt() {
return nextInt(10);
}
public int nextInt(int radix) {
if (hasNext()) {
return Integer.parseInt(next(), radix);
} else {
return 0;
}
}
public long nextLong() {
if (hasNext()) {
return Long.parseLong(next());
} else {
return 0;
}
}
public double nextDouble() {
if (hasNext()) {
return Double.parseDouble(next());
} else {
return 0.0;
}
}
public enum CoordinateFormat {
DEG_MIN_HEM,
HEM_DEG,
HEM_DEG_MIN,
HEM_DEG_MIN_HEM
}
public double nextCoordinate(CoordinateFormat format) {
double coordinate;
String hemisphere;
switch (format) {
case HEM_DEG:
hemisphere = next();
coordinate = nextDouble();
break;
case HEM_DEG_MIN:
hemisphere = next();
coordinate = nextInt();
coordinate += nextDouble() / 60;
break;
case HEM_DEG_MIN_HEM:
hemisphere = next();
coordinate = nextInt();
coordinate += nextDouble() / 60;
if (hasNext()) {
hemisphere = next();
}
break;
default:
coordinate = nextInt();
coordinate += nextDouble() / 60;
hemisphere = next();
break;
}
if (hemisphere != null && (hemisphere.equals("S") || hemisphere.equals("W"))) {
coordinate = -coordinate;
}
return coordinate;
}
public double nextCoordinate() {
return nextCoordinate(CoordinateFormat.DEG_MIN_HEM);
}
}
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