Parse EBNF: Difference between revisions

Content added Content deleted

Inline

@@ Line 5: / Line 5: @@
 * You can use regular expressions for lexing.
 * Generate the calculator in [[Arithmetic evaluation]] using an EBNF description of the calculator.
-Here is the parser rules taken from the [http://www.antlr.org/wiki/display/ANTLR3/Five+minute+introduction+to+ANTLR+3 antlr tutorial]<pre>expr	: term ( ( PLUS | MINUS )  term )* ;
+Here are simple parser rules for a calculator taken from the [http://www.antlr.org/wiki/display/ANTLR3/Five+minute+introduction+to+ANTLR+3 antlr tutorial]<pre>expr	: term ( ( PLUS | MINUS )  term )* ;
 term	: factor ( ( MULT | DIV ) factor )* ;