diff --git a/grammar/MetaCode.g4 b/grammar/MetaCode.g4
new file mode 100644
index 0000000..9ef2a0a
--- /dev/null
+++ b/grammar/MetaCode.g4
@@ -0,0 +1,23 @@
+grammar MetaCode;
+
+init : (NUMBER NEWLINE?)+
+ ;
+
+WHITESPACE : [ \t]+ -> skip;
+NEWLINE : '\r'? '\n' -> skip;
+
+NUMBER : INT
+ | FLOAT;
+
+fragment
+INT : DIGIT+
+ ;
+
+fragment
+FLOAT : DIGIT+ '.' DIGIT*
+ | '.' DIGIT+
+ ;
+
+fragment
+DIGIT : [0-9]
+ ;
\ No newline at end of file
diff --git a/grammar/example.txt b/grammar/example.txt
new file mode 100644
index 0000000..0b4445e
--- /dev/null
+++ b/grammar/example.txt
@@ -0,0 +1,2 @@
+545
+18.
\ No newline at end of file
diff --git a/grammar/run.rb b/grammar/run.rb
new file mode 100644
index 0000000..bed61a5
--- /dev/null
+++ b/grammar/run.rb
@@ -0,0 +1,11 @@
+ example = if ARGV[0].nil?
+ File.open("example.txt", "w") if not File.exist?("example.txt")
+ "example.txt"
+ else
+ ARGV[0].to_s
+ end
+ puts "Running MetaCode parser ..."
+ Dir.mkdir("src") if not Dir.exists? "src"
+ Dir.chdir("src")
+ system('call antlr4 "../MetaCode.g4" -visitor')
+ system('call grun MetaCode init -gui ..\\' + example)
diff --git a/grammar/src/MetaCode.tokens b/grammar/src/MetaCode.tokens
new file mode 100644
index 0000000..4497d1d
--- /dev/null
+++ b/grammar/src/MetaCode.tokens
@@ -0,0 +1,3 @@
+WHITESPACE=1
+NEWLINE=2
+NUMBER=3
diff --git a/grammar/src/MetaCodeBaseListener.class b/grammar/src/MetaCodeBaseListener.class
new file mode 100644
index 0000000..a9f99fa
Binary files /dev/null and b/grammar/src/MetaCodeBaseListener.class differ
diff --git a/grammar/src/MetaCodeBaseListener.java b/grammar/src/MetaCodeBaseListener.java
new file mode 100644
index 0000000..5247b0d
--- /dev/null
+++ b/grammar/src/MetaCodeBaseListener.java
@@ -0,0 +1,51 @@
+// Generated from ../MetaCode.g4 by ANTLR 4.1
+
+import org.antlr.v4.runtime.ParserRuleContext;
+import org.antlr.v4.runtime.misc.NotNull;
+import org.antlr.v4.runtime.tree.ErrorNode;
+import org.antlr.v4.runtime.tree.TerminalNode;
+
+/**
+ * This class provides an empty implementation of {@link MetaCodeListener},
+ * which can be extended to create a listener which only needs to handle a subset
+ * of the available methods.
+ */
+public class MetaCodeBaseListener implements MetaCodeListener {
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation does nothing.
+ */
+ @Override public void enterInit(@NotNull MetaCodeParser.InitContext ctx) { }
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation does nothing.
+ */
+ @Override public void exitInit(@NotNull MetaCodeParser.InitContext ctx) { }
+
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation does nothing.
+ */
+ @Override public void enterEveryRule(@NotNull ParserRuleContext ctx) { }
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation does nothing.
+ */
+ @Override public void exitEveryRule(@NotNull ParserRuleContext ctx) { }
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation does nothing.
+ */
+ @Override public void visitTerminal(@NotNull TerminalNode node) { }
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation does nothing.
+ */
+ @Override public void visitErrorNode(@NotNull ErrorNode node) { }
+}
\ No newline at end of file
diff --git a/grammar/src/MetaCodeBaseVisitor.class b/grammar/src/MetaCodeBaseVisitor.class
new file mode 100644
index 0000000..74aa90e
Binary files /dev/null and b/grammar/src/MetaCodeBaseVisitor.class differ
diff --git a/grammar/src/MetaCodeBaseVisitor.java b/grammar/src/MetaCodeBaseVisitor.java
new file mode 100644
index 0000000..43031e9
--- /dev/null
+++ b/grammar/src/MetaCodeBaseVisitor.java
@@ -0,0 +1,21 @@
+// Generated from ../MetaCode.g4 by ANTLR 4.1
+import org.antlr.v4.runtime.misc.NotNull;
+import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor;
+
+/**
+ * This class provides an empty implementation of {@link MetaCodeVisitor},
+ * which can be extended to create a visitor which only needs to handle a subset
+ * of the available methods.
+ *
+ * @param The return type of the visit operation. Use {@link Void} for
+ * operations with no return type.
+ */
+public class MetaCodeBaseVisitor extends AbstractParseTreeVisitor implements MetaCodeVisitor {
+ /**
+ * {@inheritDoc}
+ *
+ * The default implementation returns the result of calling
+ * {@link #visitChildren} on {@code ctx}.
+ */
+ @Override public T visitInit(@NotNull MetaCodeParser.InitContext ctx) { return visitChildren(ctx); }
+}
\ No newline at end of file
diff --git a/grammar/src/MetaCodeLexer.class b/grammar/src/MetaCodeLexer.class
new file mode 100644
index 0000000..af7bfec
Binary files /dev/null and b/grammar/src/MetaCodeLexer.class differ
diff --git a/grammar/src/MetaCodeLexer.java b/grammar/src/MetaCodeLexer.java
new file mode 100644
index 0000000..89f5da5
--- /dev/null
+++ b/grammar/src/MetaCodeLexer.java
@@ -0,0 +1,96 @@
+// Generated from ../MetaCode.g4 by ANTLR 4.1
+import org.antlr.v4.runtime.Lexer;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.Token;
+import org.antlr.v4.runtime.TokenStream;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.atn.*;
+import org.antlr.v4.runtime.dfa.DFA;
+import org.antlr.v4.runtime.misc.*;
+
+@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
+public class MetaCodeLexer extends Lexer {
+ protected static final DFA[] _decisionToDFA;
+ protected static final PredictionContextCache _sharedContextCache =
+ new PredictionContextCache();
+ public static final int
+ WHITESPACE=1, NEWLINE=2, NUMBER=3;
+ public static String[] modeNames = {
+ "DEFAULT_MODE"
+ };
+
+ public static final String[] tokenNames = {
+ "",
+ "WHITESPACE", "NEWLINE", "NUMBER"
+ };
+ public static final String[] ruleNames = {
+ "WHITESPACE", "NEWLINE", "NUMBER", "INT", "FLOAT", "DIGIT"
+ };
+
+
+ public MetaCodeLexer(CharStream input) {
+ super(input);
+ _interp = new LexerATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
+ }
+
+ @Override
+ public String getGrammarFileName() { return "MetaCode.g4"; }
+
+ @Override
+ public String[] getTokenNames() { return tokenNames; }
+
+ @Override
+ public String[] getRuleNames() { return ruleNames; }
+
+ @Override
+ public String[] getModeNames() { return modeNames; }
+
+ @Override
+ public ATN getATN() { return _ATN; }
+
+ @Override
+ public void action(RuleContext _localctx, int ruleIndex, int actionIndex) {
+ switch (ruleIndex) {
+ case 0: WHITESPACE_action((RuleContext)_localctx, actionIndex); break;
+
+ case 1: NEWLINE_action((RuleContext)_localctx, actionIndex); break;
+ }
+ }
+ private void WHITESPACE_action(RuleContext _localctx, int actionIndex) {
+ switch (actionIndex) {
+ case 0: skip(); break;
+ }
+ }
+ private void NEWLINE_action(RuleContext _localctx, int actionIndex) {
+ switch (actionIndex) {
+ case 1: skip(); break;
+ }
+ }
+
+ public static final String _serializedATN =
+ "\3\uacf5\uee8c\u4f5d\u8b0d\u4a45\u78bd\u1b2f\u3378\2\5<\b\1\4\2\t\2\4"+
+ "\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7\3\2\6\2\21\n\2\r\2\16\2\22\3\2"+
+ "\3\2\3\3\5\3\30\n\3\3\3\3\3\3\3\3\3\3\4\3\4\5\4 \n\4\3\5\6\5#\n\5\r\5"+
+ "\16\5$\3\6\6\6(\n\6\r\6\16\6)\3\6\3\6\7\6.\n\6\f\6\16\6\61\13\6\3\6\3"+
+ "\6\6\6\65\n\6\r\6\16\6\66\5\69\n\6\3\7\3\7\2\b\3\3\2\5\4\3\7\5\1\t\2\1"+
+ "\13\2\1\r\2\1\3\2\4\4\2\13\13\"\"\3\2\62;@\2\3\3\2\2\2\2\5\3\2\2\2\2\7"+
+ "\3\2\2\2\3\20\3\2\2\2\5\27\3\2\2\2\7\37\3\2\2\2\t\"\3\2\2\2\138\3\2\2"+
+ "\2\r:\3\2\2\2\17\21\t\2\2\2\20\17\3\2\2\2\21\22\3\2\2\2\22\20\3\2\2\2"+
+ "\22\23\3\2\2\2\23\24\3\2\2\2\24\25\b\2\2\2\25\4\3\2\2\2\26\30\7\17\2\2"+
+ "\27\26\3\2\2\2\27\30\3\2\2\2\30\31\3\2\2\2\31\32\7\f\2\2\32\33\3\2\2\2"+
+ "\33\34\b\3\3\2\34\6\3\2\2\2\35 \5\t\5\2\36 \5\13\6\2\37\35\3\2\2\2\37"+
+ "\36\3\2\2\2 \b\3\2\2\2!#\5\r\7\2\"!\3\2\2\2#$\3\2\2\2$\"\3\2\2\2$%\3\2"+
+ "\2\2%\n\3\2\2\2&(\5\r\7\2\'&\3\2\2\2()\3\2\2\2)\'\3\2\2\2)*\3\2\2\2*+"+
+ "\3\2\2\2+/\7\60\2\2,.\5\r\7\2-,\3\2\2\2.\61\3\2\2\2/-\3\2\2\2/\60\3\2"+
+ "\2\2\609\3\2\2\2\61/\3\2\2\2\62\64\7\60\2\2\63\65\5\r\7\2\64\63\3\2\2"+
+ "\2\65\66\3\2\2\2\66\64\3\2\2\2\66\67\3\2\2\2\679\3\2\2\28\'\3\2\2\28\62"+
+ "\3\2\2\29\f\3\2\2\2:;\t\3\2\2;\16\3\2\2\2\13\2\22\27\37$)/\668";
+ public static final ATN _ATN =
+ ATNSimulator.deserialize(_serializedATN.toCharArray());
+ static {
+ _decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
+ for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
+ _decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
+ }
+ }
+}
\ No newline at end of file
diff --git a/grammar/src/MetaCodeLexer.tokens b/grammar/src/MetaCodeLexer.tokens
new file mode 100644
index 0000000..4497d1d
--- /dev/null
+++ b/grammar/src/MetaCodeLexer.tokens
@@ -0,0 +1,3 @@
+WHITESPACE=1
+NEWLINE=2
+NUMBER=3
diff --git a/grammar/src/MetaCodeListener.class b/grammar/src/MetaCodeListener.class
new file mode 100644
index 0000000..22ae0c2
Binary files /dev/null and b/grammar/src/MetaCodeListener.class differ
diff --git a/grammar/src/MetaCodeListener.java b/grammar/src/MetaCodeListener.java
new file mode 100644
index 0000000..ff558da
--- /dev/null
+++ b/grammar/src/MetaCodeListener.java
@@ -0,0 +1,20 @@
+// Generated from ../MetaCode.g4 by ANTLR 4.1
+import org.antlr.v4.runtime.misc.NotNull;
+import org.antlr.v4.runtime.tree.ParseTreeListener;
+
+/**
+ * This interface defines a complete listener for a parse tree produced by
+ * {@link MetaCodeParser}.
+ */
+public interface MetaCodeListener extends ParseTreeListener {
+ /**
+ * Enter a parse tree produced by {@link MetaCodeParser#init}.
+ * @param ctx the parse tree
+ */
+ void enterInit(@NotNull MetaCodeParser.InitContext ctx);
+ /**
+ * Exit a parse tree produced by {@link MetaCodeParser#init}.
+ * @param ctx the parse tree
+ */
+ void exitInit(@NotNull MetaCodeParser.InitContext ctx);
+}
\ No newline at end of file
diff --git a/grammar/src/MetaCodeParser$InitContext.class b/grammar/src/MetaCodeParser$InitContext.class
new file mode 100644
index 0000000..d9f9559
Binary files /dev/null and b/grammar/src/MetaCodeParser$InitContext.class differ
diff --git a/grammar/src/MetaCodeParser.class b/grammar/src/MetaCodeParser.class
new file mode 100644
index 0000000..5bea99e
Binary files /dev/null and b/grammar/src/MetaCodeParser.class differ
diff --git a/grammar/src/MetaCodeParser.java b/grammar/src/MetaCodeParser.java
new file mode 100644
index 0000000..9b1a0f6
--- /dev/null
+++ b/grammar/src/MetaCodeParser.java
@@ -0,0 +1,125 @@
+// Generated from ../MetaCode.g4 by ANTLR 4.1
+import org.antlr.v4.runtime.atn.*;
+import org.antlr.v4.runtime.dfa.DFA;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.misc.*;
+import org.antlr.v4.runtime.tree.*;
+import java.util.List;
+import java.util.Iterator;
+import java.util.ArrayList;
+
+@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
+public class MetaCodeParser extends Parser {
+ protected static final DFA[] _decisionToDFA;
+ protected static final PredictionContextCache _sharedContextCache =
+ new PredictionContextCache();
+ public static final int
+ WHITESPACE=1, NEWLINE=2, NUMBER=3;
+ public static final String[] tokenNames = {
+ "", "WHITESPACE", "NEWLINE", "NUMBER"
+ };
+ public static final int
+ RULE_init = 0;
+ public static final String[] ruleNames = {
+ "init"
+ };
+
+ @Override
+ public String getGrammarFileName() { return "MetaCode.g4"; }
+
+ @Override
+ public String[] getTokenNames() { return tokenNames; }
+
+ @Override
+ public String[] getRuleNames() { return ruleNames; }
+
+ @Override
+ public ATN getATN() { return _ATN; }
+
+ public MetaCodeParser(TokenStream input) {
+ super(input);
+ _interp = new ParserATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
+ }
+ public static class InitContext extends ParserRuleContext {
+ public List NEWLINE() { return getTokens(MetaCodeParser.NEWLINE); }
+ public TerminalNode NEWLINE(int i) {
+ return getToken(MetaCodeParser.NEWLINE, i);
+ }
+ public TerminalNode NUMBER(int i) {
+ return getToken(MetaCodeParser.NUMBER, i);
+ }
+ public List NUMBER() { return getTokens(MetaCodeParser.NUMBER); }
+ public InitContext(ParserRuleContext parent, int invokingState) {
+ super(parent, invokingState);
+ }
+ @Override public int getRuleIndex() { return RULE_init; }
+ @Override
+ public void enterRule(ParseTreeListener listener) {
+ if ( listener instanceof MetaCodeListener ) ((MetaCodeListener)listener).enterInit(this);
+ }
+ @Override
+ public void exitRule(ParseTreeListener listener) {
+ if ( listener instanceof MetaCodeListener ) ((MetaCodeListener)listener).exitInit(this);
+ }
+ @Override
+ public T accept(ParseTreeVisitor visitor) {
+ if ( visitor instanceof MetaCodeVisitor ) return ((MetaCodeVisitor)visitor).visitInit(this);
+ else return visitor.visitChildren(this);
+ }
+ }
+
+ public final InitContext init() throws RecognitionException {
+ InitContext _localctx = new InitContext(_ctx, getState());
+ enterRule(_localctx, 0, RULE_init);
+ int _la;
+ try {
+ enterOuterAlt(_localctx, 1);
+ {
+ setState(6);
+ _errHandler.sync(this);
+ _la = _input.LA(1);
+ do {
+ {
+ {
+ setState(2); match(NUMBER);
+ setState(4);
+ _la = _input.LA(1);
+ if (_la==NEWLINE) {
+ {
+ setState(3); match(NEWLINE);
+ }
+ }
+
+ }
+ }
+ setState(8);
+ _errHandler.sync(this);
+ _la = _input.LA(1);
+ } while ( _la==NUMBER );
+ }
+ }
+ catch (RecognitionException re) {
+ _localctx.exception = re;
+ _errHandler.reportError(this, re);
+ _errHandler.recover(this, re);
+ }
+ finally {
+ exitRule();
+ }
+ return _localctx;
+ }
+
+ public static final String _serializedATN =
+ "\3\uacf5\uee8c\u4f5d\u8b0d\u4a45\u78bd\u1b2f\u3378\3\5\r\4\2\t\2\3\2\3"+
+ "\2\5\2\7\n\2\6\2\t\n\2\r\2\16\2\n\3\2\2\3\2\2\2\r\2\b\3\2\2\2\4\6\7\5"+
+ "\2\2\5\7\7\4\2\2\6\5\3\2\2\2\6\7\3\2\2\2\7\t\3\2\2\2\b\4\3\2\2\2\t\n\3"+
+ "\2\2\2\n\b\3\2\2\2\n\13\3\2\2\2\13\3\3\2\2\2\4\6\n";
+ public static final ATN _ATN =
+ ATNSimulator.deserialize(_serializedATN.toCharArray());
+ static {
+ _decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
+ for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
+ _decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
+ }
+ }
+}
\ No newline at end of file
diff --git a/grammar/src/MetaCodeVisitor.class b/grammar/src/MetaCodeVisitor.class
new file mode 100644
index 0000000..fbe4d0b
Binary files /dev/null and b/grammar/src/MetaCodeVisitor.class differ
diff --git a/grammar/src/MetaCodeVisitor.java b/grammar/src/MetaCodeVisitor.java
new file mode 100644
index 0000000..5cb13da
--- /dev/null
+++ b/grammar/src/MetaCodeVisitor.java
@@ -0,0 +1,19 @@
+// Generated from ../MetaCode.g4 by ANTLR 4.1
+import org.antlr.v4.runtime.misc.NotNull;
+import org.antlr.v4.runtime.tree.ParseTreeVisitor;
+
+/**
+ * This interface defines a complete generic visitor for a parse tree produced
+ * by {@link MetaCodeParser}.
+ *
+ * @param The return type of the visit operation. Use {@link Void} for
+ * operations with no return type.
+ */
+public interface MetaCodeVisitor extends ParseTreeVisitor {
+ /**
+ * Visit a parse tree produced by {@link MetaCodeParser#init}.
+ * @param ctx the parse tree
+ * @return the visitor result
+ */
+ T visitInit(@NotNull MetaCodeParser.InitContext ctx);
+}
\ No newline at end of file
diff --git a/scripts/antlr4.rb b/scripts/antlr4.rb
new file mode 100644
index 0000000..7a1279d
--- /dev/null
+++ b/scripts/antlr4.rb
@@ -0,0 +1,39 @@
+switches = []
+
+ARGV.each do |arg|
+ switches << arg if arg.start_with? "-"
+end
+
+if switches.include? "-init"
+ if not ARGV[1].nil?
+ File.open("run.rb", "w") { |file|
+ puts "Initialize grammar ..."
+ code = <<-CODE
+ example = if ARGV[0].nil?
+ File.open("example.txt", "w") if not File.exist?("example.txt")
+ "example.txt"
+ else
+ ARGV[0].to_s
+ end
+ puts "Running #{ARGV[1]} parser ..."
+ Dir.mkdir("src") if not Dir.exists? "src"
+ Dir.chdir("src")
+ system('call antlr4 "../#{ARGV[1]}.g4" -visitor')
+ system('call grun #{ARGV[1]} init -gui ..\\\\' + example)
+ CODE
+ file.puts(code)
+ puts "Initialization is completed."
+ }
+ else
+ puts "Use this: antlr4 -init "
+ end
+elsif switches.include? "-help"
+ puts "Usage: 'antlr4 ' or"
+ puts " 'antlr4 '"
+ puts "Switches: "
+ puts " -init Initialize ANTLR grammar"
+ puts " -help Show help"
+else
+ system("java -cp e:\Development\Libraries\ANTLR\antlr-4.1-complete.jar;%CLASSPATH% org.antlr.v4.Tool #{ARGV[0]} -visitor")
+ system("javac *.java")
+end
\ No newline at end of file
diff --git a/scripts/grun.bat b/scripts/grun.bat
new file mode 100644
index 0000000..ebcb057
--- /dev/null
+++ b/scripts/grun.bat
@@ -0,0 +1 @@
+java -cp .;%CLASSPATH% org.antlr.v4.runtime.misc.TestRig %*
\ No newline at end of file