feat(package): hemar: antlr grammar, but still does not work

package/hemar/grammar/antlr/GoodTry.g4

@@ -0,0 +1,28 @@
+grammar Hemar;
+
+// ----------------- parser rules -----------------
+
+hemar: elements? EOF ;
+
+elements: element+ ;
+
+element
+  : segment
+  | interpoltion 
+  ;
+
+segment : for elements? end ;
+
+for : 'for' 'in' ;
+
+end: 'end' ;
+
+interpoltion : 'mcha' ;
+
+OPEN  : '{[' ;
+CLOSE : ']}' ;
+
+WS  :   [ \t\n\r]+ -> skip ;
+LEADING_TEXT : { getCharPositionInLine() == 0 }? (~'{'|'{'~'[')* OPEN -> skip;
+MIDLE_TEXT   : CLOSE (~'{'|'{'~'[')* OPEN -> skip;
+ENDING_TEXT : CLOSE (~'{'|'{'~'[')* EOF -> skip ;