Unicode <-> Zawgyi Java Converter

Converter.java

// Zawgyi<>Unicode converter python module
// Based on rules from Parabaik Myanmar Text Converter
// Copyright (C) 2014 Ngwe Tun (Solveware Solution)
// Copyright (C) 2014 Ye Mon Kyaw

// This file is part of Paytan.

// Paytan 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.

// Paytan 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 Foobar.  If not, see <http://www.gnu.org/licenses/>.

import net.sourceforge.argparse4j.ArgumentParsers;
import net.sourceforge.argparse4j.inf.ArgumentParser;
import net.sourceforge.argparse4j.inf.ArgumentParserException;
import net.sourceforge.argparse4j.inf.Namespace;
import net.sourceforge.argparse4j.annotation.Arg;

import java.io.Reader;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;
import java.io.FileReader;

public class Converter{

    public static String uni512zg1(String input_text) {
	String output_text = input_text;
	output_text = output_text.replaceAll("\\u104e\\u1004\\u103a\\u1038", "\u104e");
	output_text = output_text.replaceAll("\\u102b\\u103a", "\u105a");
	output_text = output_text.replaceAll("\\u102d\\u1036", "\u108e");
	output_text = output_text.replaceAll("\\u103f", "\u1086");
	output_text = output_text.replaceAll("(?<=\\u102f)\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u102f\\u1036)\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u1030)\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u1030\\u1036)\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u1014)\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u1014[\\u103a\\u1032])\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u103b)\\u1037", "\u1095");
	output_text = output_text.replaceAll("(?<=\\u103b[\\u1032\\u1036])\\u1037", "\u1095");
	output_text = output_text.replaceAll("(?<=\\u103d)\\u1037", "\u1095");
	output_text = output_text.replaceAll("(?<=\\u103d[\\u1032])\\u1037", "\u1095");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c\\u103d])\\u102f", "\u1033");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c\\u103d][\\u102d\\u1036])\\u102f", "\u1033");
	output_text = output_text.replaceAll("(?<=(\\u1039[\\u1000-\\u1021]))\\u102f", "\u1033");
	output_text = output_text.replaceAll("(?<=(\\u1039[\\u1000-\\u1021])[\\u102d\\u1036])\\u102f", "\u1033");
	output_text = output_text.replaceAll("(?<=[\\u100a\\u100c\\u1020\\u1025\\u1029])\\u102f", "\u1033");
	output_text = output_text.replaceAll("(?<=[\\u100a\\u100c\\u1020\\u1025\\u1029][\\u102d\\u1036])\\u102f", "\u1033");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u103d])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u103e])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u102d\\u1036])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u103d][\\u103e])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u103d][\\u102d\\u1036])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u103e][\\u102d\\u1036])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u103b\\u103c][\\u103d][\\u103e][\\u102d\\u1036])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=(\\u1039[\\u1000-\\u1021]))\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=(\\u1039[\\u1000-\\u1021])[\\u102d\\u1036])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u100a\\u100c\\u1020\\u1025\\u1029])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=[\\u100a\\u100c\\u1020\\u1025\\u1029][\\u102d\\u1036])\\u1030", "\u1034");
	output_text = output_text.replaceAll("(?<=\\u103c)\\u103e", "\u1087");
	output_text = output_text.replaceAll("\\u1009(?=[\\u103a])", "\u1025");
	output_text = output_text.replaceAll("\\u1009(?=\\u1039[\\u1000-\\u1021])", "\u1025");
	output_text = output_text.replaceAll("([\\u1000-\\u1021\\u1029])((?:\\u1039[\\u1000-\\u1021])?)((?:[\\u103b-\\u103e\\u1087]*)?)\\u1031", "\u1031$1$2$3");
	output_text = output_text.replaceAll("([\\u1000-\\u1021\\u1029])((?:\\u1039[\\u1000-\\u1021\\u1000-\\u1021])?)(\\u103c)", "$3$1$2");
	output_text = output_text.replaceAll("\\u1004\\u103a\\u1039", "\u1064");
	output_text = output_text.replaceAll("(\\u1064)((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u102d", "$2$3$4\u108b");
	output_text = output_text.replaceAll("(\\u1064)((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u102e", "$2$3$4\u108c");
	output_text = output_text.replaceAll("(\\u1064)((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u1036", "$2$3$4\u108d");
	output_text = output_text.replaceAll("(\\u1064)((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])", "$2$3$4\u1064");
	output_text = output_text.replaceAll("\\u100a(?=[\\u1039\\u102f\\u1030])", "\u106b");
	output_text = output_text.replaceAll("\\u100a", "\u100a");
	output_text = output_text.replaceAll("\\u101b(?=[\\u102f\\u1030])", "\u1090");
	output_text = output_text.replaceAll("\\u101b", "\u101b");
	output_text = output_text.replaceAll("\\u1014(?=[\\u1039\\u103d\\u103e\\u102f\\u1030])", "\u108f");
	output_text = output_text.replaceAll("\\u1014", "\u1014");
	output_text = output_text.replaceAll("\\u1039\\u1000", "\u1060");
	output_text = output_text.replaceAll("\\u1039\\u1001", "\u1061");
	output_text = output_text.replaceAll("\\u1039\\u1002", "\u1062");
	output_text = output_text.replaceAll("\\u1039\\u1003", "\u1063");
	output_text = output_text.replaceAll("\\u1039\\u1005", "\u1065");
	output_text = output_text.replaceAll("\\u1039\\u1006", "\u1066");
	output_text = output_text.replaceAll("(?<=[\\u1001\\u1002\\u1004\\u1005\\u1007\\u1012\\u1013\\u108f\\u1015\\u1016\\u1017\\u1019\\u101d])\\u1066", "\u1067");
	output_text = output_text.replaceAll("\\u1039\\u1007", "\u1068");
	output_text = output_text.replaceAll("\\u1039\\u1008", "\u1069");
	output_text = output_text.replaceAll("\\u1039\\u100f", "\u1070");
	output_text = output_text.replaceAll("\\u1039\\u1010", "\u1071");
	output_text = output_text.replaceAll("(?<=[\\u1001\\u1002\\u1004\\u1005\\u1007\\u1012\\u1013\\u108f\\u1015\\u1016\\u1017\\u1019\\u101d])\\u1071", "\u1072");
	output_text = output_text.replaceAll("\\u1039\\u1011", "\u1073");
	output_text = output_text.replaceAll("(?<=[\\u1001\\u1002\\u1004\\u1005\\u1007\\u1012\\u1013\\u108f\\u1015\\u1016\\u1017\\u1019\\u101d])\\u1073", "\u1074");
	output_text = output_text.replaceAll("\\u1039\\u1012", "\u1075");
	output_text = output_text.replaceAll("\\u1039\\u1013", "\u1076");
	output_text = output_text.replaceAll("\\u1039\\u1014", "\u1077");
	output_text = output_text.replaceAll("\\u1039\\u1015", "\u1078");
	output_text = output_text.replaceAll("\\u1039\\u1016", "\u1079");
	output_text = output_text.replaceAll("\\u1039\\u1017", "\u107a");
	output_text = output_text.replaceAll("\\u1039\\u1018", "\u107b");
	output_text = output_text.replaceAll("\\u1039\\u1019", "\u107c");
	output_text = output_text.replaceAll("\\u1039\\u101c", "\u1085");
	output_text = output_text.replaceAll("\\u100f\\u1039\\u100d", "\u1091");
	output_text = output_text.replaceAll("\\u100b\\u1039\\u100c", "\u1092");
	output_text = output_text.replaceAll("\\u1039\\u100c", "\u106d");
	output_text = output_text.replaceAll("\\u100b\\u1039\\u100b", "\u1097");
	output_text = output_text.replaceAll("\\u1039\\u100b", "\u106c");
	output_text = output_text.replaceAll("\\u100e\\u1039\\u100d", "\u106f");
	output_text = output_text.replaceAll("\\u100d\\u1039\\u100d", "\u106e");
	output_text = output_text.replaceAll("\\u1009(?=\\u103a)", "\u1025");
	output_text = output_text.replaceAll("\\u1025(?=[\\u1039\\u102f\\u1030])", "\u106a");
	output_text = output_text.replaceAll("\\u1025", "\u1025");
	output_text = output_text.replaceAll("\\u103a", "\u1039");
	output_text = output_text.replaceAll("\\u103b\\u103d\\u103e", "\u107d\u108a");
	output_text = output_text.replaceAll("\\u103d\\u103e", "\u108a");
	output_text = output_text.replaceAll("\\u103b", "\u103a");
	output_text = output_text.replaceAll("\\u103c", "\u103b");
	output_text = output_text.replaceAll("\\u103d", "\u103c");
	output_text = output_text.replaceAll("\\u103e", "\u103d");
	output_text = output_text.replaceAll("\\u103a(?=[\\u103c\\u103d\\u108a])", "\u107d");
	output_text = output_text.replaceAll("(?<=\\u100a(?:[\\u102d\\u102e\\u1036\\u108b\\u108c\\u108d\\u108e]))\\u103d", "\u1087");
	output_text = output_text.replaceAll("(?<=\\u100a)\\u103d", "\u1087");
	output_text = output_text.replaceAll("\\u103b(?=[\\u1000\\u1003\\u1006\\u100f\\u1010\\u1011\\u1018\\u101a\\u101c\\u101e\\u101f\\u1021])", "\u107e");
	output_text = output_text.replaceAll("\\u107e([\\u1000-\\u1021\\u108f])(?=[\\u102d\\u102e\\u1036\\u108b\\u108c\\u108d\\u108e])", "\u1080$1");
	output_text = output_text.replaceAll("\\u107e([\\u1000-\\u1021\\u108f])(?=[\\u103c\\u108a])", "\u1082$1");
	output_text = output_text.replaceAll("\\u103b([\\u1000-\\u1021\\u108f])(?=[\\u102d\\u102e\\u1036\\u108b\\u108c\\u108d\\u108e])", "\u107f$1");
	output_text = output_text.replaceAll("\\u103b([\\u1000-\\u1021\\u108f])(?=[\\u103c\\u108a])", "\u1081$1");
	output_text = output_text.replaceAll("(?<=\\u1014)\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u1014[\\u103a\\u1032])\\u1037", "\u1094");
	output_text = output_text.replaceAll("(?<=\\u1033)\\u1094", "\u1095");
	output_text = output_text.replaceAll("(?<=\\u1033[\\u1036])\\u1094", "\u1095");
	output_text = output_text.replaceAll("(?<=\\u1034)\\u1094", "\u1095");
	output_text = output_text.replaceAll("(?<=\\u1034[\\u1036])\\u1094", "\u1095");
	output_text = output_text.replaceAll("(?<=[\\u103c\\u103d\\u108a])\\u1037", "\u1095");
	output_text = output_text.replaceAll("(?<=[\\u103c\\u103d\\u108a][\\u1032])\\u1037", "\u1095");
	return output_text;
    }

    public static String zg12uni51(String input_text) {
	String output_text = input_text;
	output_text = output_text.replaceAll("\\u106a", "\u1009");
	output_text = output_text.replaceAll("\\u1025(?=[\\u1039\\u102c])", "\u1009");
	output_text = output_text.replaceAll("\\u1025\\u102e", "\u1026");
	output_text = output_text.replaceAll("\\u106b", "\u100a");
	output_text = output_text.replaceAll("\\u1090", "\u101b");
	output_text = output_text.replaceAll("\\u1040", "\u1040");
	output_text = output_text.replaceAll("\\u108f", "\u1014");
	output_text = output_text.replaceAll("\\u1012", "\u1012");
	output_text = output_text.replaceAll("\\u1013", "\u1013");
	output_text = output_text.replaceAll("[\\u103d\\u1087]", "\u103e");
	output_text = output_text.replaceAll("\\u103c", "\u103d");
	output_text = output_text.replaceAll("[\\u103b\\u107e\\u107f\\u1080\\u1081\\u1082\\u1083\\u1084]", "\u103c");
	output_text = output_text.replaceAll("[\\u103a\\u107d]", "\u103b");
	output_text = output_text.replaceAll("\\u103d\\u103b", "\u103b\u103d");
	output_text = output_text.replaceAll("\\u108a", "\u103d\u103d");
	output_text = output_text.replaceAll("\\u103d\\u103d", "\u103d\u103d");
	output_text = output_text.replaceAll("((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u1064", "\u1064$1$2$3");
	output_text = output_text.replaceAll("((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u108b", "\u1064$1$2$3\u102d");
	output_text = output_text.replaceAll("((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u108c", "\u1064$1$2$3\u102e");
	output_text = output_text.replaceAll("((?:\\u1031)?)((?:\\u103c)?)([\\u1000-\\u1021])\\u108d", "\u1064$1$2$3\u1036");
	output_text = output_text.replaceAll("\\u105a", "\u102b\u103a");
	output_text = output_text.replaceAll("\\u108e", "\u102d\u1036");
	output_text = output_text.replaceAll("\\u1033", "\u102f");
	output_text = output_text.replaceAll("\\u1034", "\u1030");
	output_text = output_text.replaceAll("\\u1088", "\u103d\u102f");
	output_text = output_text.replaceAll("\\u1089", "\u103d\u1030");
	output_text = output_text.replaceAll("\\u1039", "\u103a");
	output_text = output_text.replaceAll("[\\u1094\\u1095]", "\u1037");
	output_text = output_text.replaceAll("([\\u1000-\\u1021])([\\u102c\\u102d\\u102e\\u1032\\u1036]){1,2}([\\u1060\\u1061\\u1062\\u1063\\u1065\\u1066\\u1067\\u1068\\u1069\\u1070\\u1071\\u1072\\u1073\\u1074\\u1075\\u1076\\u1077\\u1078\\u1079\\u107a\\u107b\\u107c\\u1085])", "$1$3$2");
	output_text = output_text.replaceAll("\\u1064", "\u1004\u103a\u1039");
	output_text = output_text.replaceAll("\\u104e", "\u104e\u1004\u103a\u1038");
	output_text = output_text.replaceAll("\\u1086", "\u103f");
	output_text = output_text.replaceAll("\\u1060", "\u1039\u1000");
	output_text = output_text.replaceAll("\\u1061", "\u1039\u1001");
	output_text = output_text.replaceAll("\\u1062", "\u1039\u1002");
	output_text = output_text.replaceAll("\\u1063", "\u1039\u1003");
	output_text = output_text.replaceAll("\\u1065", "\u1039\u1005");
	output_text = output_text.replaceAll("[\\u1066\\u1067]", "\u1039\u1006");
	output_text = output_text.replaceAll("\\u1068", "\u1039\u1007");
	output_text = output_text.replaceAll("\\u1069", "\u1039\u1008");
	output_text = output_text.replaceAll("\\u106c", "\u1039\u100b");
	output_text = output_text.replaceAll("\\u1070", "\u1039\u100f");
	output_text = output_text.replaceAll("[\\u1071\\u1072]", "\u1039\u1010");
	output_text = output_text.replaceAll("[\\u1073\\u1074]", "\u1039\u1011");
	output_text = output_text.replaceAll("\\u1075", "\u1039\u1012");
	output_text = output_text.replaceAll("\\u1076", "\u1039\u1013");
	output_text = output_text.replaceAll("\\u1077", "\u1039\u1014");
	output_text = output_text.replaceAll("\\u1078", "\u1039\u1015");
	output_text = output_text.replaceAll("\\u1079", "\u1039\u1016");
	output_text = output_text.replaceAll("\\u107a", "\u1039\u1017");
	output_text = output_text.replaceAll("\\u107b", "\u1039\u1018");
	output_text = output_text.replaceAll("\\u107c", "\u1039\u1019");
	output_text = output_text.replaceAll("\\u1085", "\u1039\u101c");
	output_text = output_text.replaceAll("\\u106d", "\u1039\u100c");
	output_text = output_text.replaceAll("\\u1091", "\u100f\u1039\u100d");
	output_text = output_text.replaceAll("\\u1092", "\u100b\u1039\u100c");
	output_text = output_text.replaceAll("\\u1097", "\u100b\u1039\u100b");
	output_text = output_text.replaceAll("\\u106f", "\u100e\u1039\u100d");
	output_text = output_text.replaceAll("\\u106e", "\u100d\u1039\u100d");
	output_text = output_text.replaceAll("(\\u103c)([\\u1000-\\u1021])((?:\\u1039[\\u1000-\\u1021])?)", "$2$3$1");
	output_text = output_text.replaceAll("(\\u103d)(\\u103d)([\\u103b\\u103c])", "$3$2$1");
	output_text = output_text.replaceAll("(\\u103d)([\\u103b\\u103c])", "$2$1");
	output_text = output_text.replaceAll("(\\u103d)([\\u103b\\u103c])", "$2$1");
	output_text = output_text.replaceAll("(?<=([\\u1000-\\u101c\\u101e-\\u102a\\u102c\\u102e-\\u103d\\u104c-\\u109f]))(\\u1040)(?=\\s)?", "\u101d");
	output_text = output_text.replaceAll("(?<=(\\u101d))(\\u1040)(?=\\s)?", "\u101d");
	output_text = output_text.replaceAll("(?<=([\\u1000-\\u101c\\u101e-\\u102a\\u102c\\u102e-\\u103d\\u104c-\\u109f\\s]))(\\u1047)", "\u101b");
	output_text = output_text.replaceAll("(\\u1047)(?=[\\u1000-\\u101c\\u101e-\\u102a\\u102c\\u102e-\\u103d\\u104c-\\u109f\\s])", "\u101b");
	output_text = output_text.replaceAll("((?:\\u1031)?)([\\u1000-\\u1021])((?:\\u1039[\\u1000-\\u1021])?)((?:[\\u102d\\u102e\\u1032])?)([\\u1036\\u1037\\u1038]{0,2})([\\u103b-\\u103d]{0,3})((?:[\\u102f\\u1030])?)([\\u1036\\u1037\\u1038]{0,2})((?:[\\u102d\\u102e\\u1032])?)", "$2$3$6$1$4$9$7$5$8");
	output_text = output_text.replaceAll("\\u1036\\u102f", "\u102f\u1036");
	output_text = output_text.replaceAll("(\\u103a)(\\u1037)", "$2$1");
	return output_text;
    }

    public static void main (String argv[]) {
	Option opt = new Option().handleArguments(argv);

	if (opt.files.length == 0) {
	    convert(new InputStreamReader(System.in), opt.to);
	    return;
	}

	for(String file: opt.files) {
	    try {
		convert(new FileReader(file), opt.to);
	    } catch (FileNotFoundException e) {
		System.err.println(e);
	    }
	}
    }

    public static void convert (Reader reader, String to) {
	BufferedReader bufferedReader = new BufferedReader(reader);
	char[] buf = new char[1024 * 10];
	StringBuffer input = new StringBuffer();

	try {
	    int len = 0;
	    while(bufferedReader.ready() && (len = bufferedReader.read(buf, 0, buf.length)) > 0) {
		input.append(buf, 0, len);
	    }

	    if (to.equals("unicode")) {
		System.out.print(zg12uni51(input.toString()));
	    } else {
		System.out.print(uni512zg1(input.toString()));
	    }

	} catch (IOException e) {
	    System.err.println("Caught exception :" + e);
	    e.printStackTrace();
	}
    }

    public static class Option {
	@Arg(dest="to")
	public String to;
	@Arg(dest="files")
	public String files[];

	public Option handleArguments (String argv[]) {
	    ArgumentParser parser = ArgumentParsers.newArgumentParser("Converter")
		.defaultHelp(true)
		.description("Convert Zawgyi <-> Unicode encodings.");

	    parser.addArgument("-t", "--to")
		.choices("zawgyi", "unicode")
		.required(true)
		.help("Specify hash function to use");

	    parser.addArgument("files").nargs("*")
		.help("Files to convert");

	    try {
		parser.parseArgs(argv, this);
	    } catch (ArgumentParserException e) {
		parser.handleError(e);
		System.exit(1);
	    }

	    return this;
	}
    }
}

There is an error when convert Zawgyi encoded text to Unicode encoded text in Medial Ha such as "မှ".
Convert following text as a input "မိန္းမမွာမီး ေယာက်ာ္းမွာဆီး".

"ျမန္မာပ်ဳႏိုင္ငံေရွးေဟာင္းၿမိဳ႔ကို ကမာၻ႔ယဥ္ေက်းမႈအေမြအနစ္ၿမိဳ႔ေတာ္အျဖစ္ ";(Zawgyi font) can't convert to Unicode. I think the rules not enough about z-u or u-z....