Create calc.pegjs

luisespino · May 14, 2024 · e8f6c8e · e8f6c8e
1 parent 60ea473
commit e8f6c8e
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/peggy/02_calc/calc.pegjs b/peggy/02_calc/calc.pegjs
@@ -0,0 +1,11 @@
+s = e
+
+e = left:t "+" right:e { return left + right; }
+    / t
+
+t = left:f "*" right:t { return left * right; }
+    / f
+
+f = _ num:[0-9]+ _ { return parseInt(num.join(""), 10); }
+
+_ = [ \t\n\r]*