actually commit TP2

TP02/ITE/ITE.g4

@@ -0,0 +1,11 @@
+grammar ITE;
+
+prog: stmt EOF;
+
+stmt : ifStmt | ID ;
+
+ifStmt : 'if' ID 'then' thenstmt=stmt ('else' elsestmt=stmt)?;
+
+
+ID : [a-zA-Z]+;
+WS : [ \t\r\n]+ -> skip ; // skip spaces, tabs, newlines

TP02/ITE/Makefile

@@ -0,0 +1,17 @@
+MAINFILE = main
+PACKAGE = ITE
+
+ifndef ANTLR4
+$(error variable ANTLR4 is not set)
+endif
+
+default: $(PACKAGE)Parser.py
+
+$(PACKAGE)Parser.py: $(PACKAGE).g4
+	$(ANTLR4) $^ -Dlanguage=Python3
+
+run: $(MAINFILE).py $(PACKAGE)Parser.py
+	python3 $<
+
+clean:
+	rm -rf *~ $(PACKAGE)*.py $(PACKAGE)*.pyc *.interp *.tokens  __pycache*

TP02/ITE/main.py

@@ -0,0 +1,21 @@
+from antlr4 import InputStream
+from antlr4 import CommonTokenStream
+
+# include to use the generated lexer and parser
+from ITELexer import ITELexer
+from ITEParser import ITEParser
+
+import sys
+
+
+def main():
+    lexer = ITELexer(InputStream(sys.stdin.read()))
+    stream = CommonTokenStream(lexer)
+    parser = ITEParser(stream)
+    parser.prog()
+    print("Finished")
+
+
+# warns pb if py file is included in others
+if __name__ == '__main__':
+    main()