Add preliminary ANTLR 4 grammar

enzet · Aug 19, 2023 · 32a55da · 32a55da
1 parent 1667ab3
commit 32a55da
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/grammar/Moire.g4 b/grammar/Moire.g4
@@ -0,0 +1,22 @@
+/**
+ * Grammar for Moire markup language.
+ *
+ * @author Sergey Vartanov
+ * @since 2 September 2022
+ */
+grammar Moire;
+
+document : markup EOF ;
+markup : ( tag | TEXT | WHITESPACE | escapedCharacter | DELIMITER )+ ;
+tag : TAG_NAME ( WHITESPACE? argument )* ;
+argument : CURLY_OPEN markup CURLY_CLOSE ;
+escapedCharacter : BACKSLASH (BACKSLASH | CURLY_OPEN | CURLY_CLOSE) ;
+
+DELIMITER : '\n\n' ;
+BACKSLASH : '\\' ;
+CURLY_OPEN : '{' ;
+CURLY_CLOSE : '}' ;
+fragment IDENTIFIER : [A-Za-z0-9_]+;
+TAG_NAME: BACKSLASH IDENTIFIER;
+WHITESPACE : [ \t\n\r]+;
+TEXT : [A-Za-z. \n\t\r]+;