NewPipeExtractor/Parser.java

78 lines
2.6 KiB
Java

package org.schabi.newpipe.extractor;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created by Christian Schabesberger on 02.02.16.
*
* Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
* Parser.java is part of NewPipe.
*
* NewPipe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* NewPipe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with NewPipe. If not, see <http://www.gnu.org/licenses/>.
*/
/** avoid using regex !!! */
public class Parser {
private Parser() {
}
public static class RegexException extends ParsingException {
public RegexException(String message) {
super(message);
}
}
public static String matchGroup1(String pattern, String input) throws RegexException {
return matchGroup(pattern, input, 1);
}
public static String matchGroup(String pattern, String input, int group) throws RegexException {
Pattern pat = Pattern.compile(pattern);
Matcher mat = pat.matcher(input);
boolean foundMatch = mat.find();
if (foundMatch) {
return mat.group(group);
}
else {
//Log.e(TAG, "failed to find pattern \""+pattern+"\" inside of \""+input+"\"");
if(input.length() > 1024) {
throw new RegexException("failed to find pattern \""+pattern);
} else {
throw new RegexException("failed to find pattern \"" + pattern + " inside of " + input + "\"");
}
}
}
public static Map<String, String> compatParseMap(final String input) throws UnsupportedEncodingException {
Map<String, String> map = new HashMap<>();
for(String arg : input.split("&")) {
String[] splitArg = arg.split("=");
if(splitArg.length > 1) {
map.put(splitArg[0], URLDecoder.decode(splitArg[1], "UTF-8"));
} else {
map.put(splitArg[0], "");
}
}
return map;
}
}