}
testcase {
+ input "aabb";
+ output "xbx:{abab:{a b}}";
+
+ x !::= ~[]
+ s ::= x* b x* => xbx
+ b ::= [ab][ab] => abab
+ &~ ( "aa" | "bb" )
+}
+
+testcase {
input "12111211";
output "ac:{{2 1 2 1}}";
//output "a:{{2 1 2 1}}";
// input "
//
//
+//
// while x>0
-// while y>0
-// foo()
-// bar()
+// while y>0
+// foo()
+// bar()
+//
//
// while x>0
-// while y>0
-// foo()
-// bar()
+// while y>0
+// foo()
+// bar()
+//
//
//
//";
-// output "smt:{while:{>:{{x} {0}} while:{>:{{y} {0}} sbb:{{f o o} {b a r}}}}}";
-// output "smt:{while:{>:{{x} {0}} sbb:{while:{>:{{y} {0}} {f o o}} {b a r}}}}";
+// output "smt:{while:{>:{{x} {0}} while:{>:{{y} {0}} sbb:{{f o o} {b a r}}}} while:{>:{{x} {0}} sbb:{while:{>:{{y} {0}} {f o o}} {b a r}}}}";
//
//indent !::= ww
//outdent !::= " " outdent " "
// | " " (~[]*) "\n"
//
-//any !::= ~[]*
-//s ::= any "\n\n" ww statement ww "\n\n" any => smt
+//w !::= " " | "\n" | "\r"
+//ws !::= w*
//ww !::= sp*
-//ws !::= sp**
-//sp ::= " "
+//sp !::= " "
+//any !::= ~[]*
+//
+//s ::= ws statement ws statement ws => smt
//
//block ::= "\n" indent blockBody
// &~ "\n" outdent ~[\ ] ~[]*
//
//blockBody ::= statement
-// > statement blockBody /ws => "sbb"
+// > statement ws blockBody => "sbb"
//
//statement ::= call
// | ^"while" expr block /ws
//ident ::= [a-z]++ &~ keyword
//keyword ::= "if" | "then" | "else" | "while"
//
-//w ::= " " | "\n" | "\r"
-//ws ::= w*
//
//
//}
+//
+
+
+testcase {
+ input "abc ";
+ output "";
+
+ s ::= q " "* => s
+ q ::= [a-z] [a-z] [a-z] => a3
+// &~ "a" ~[]*
+ &~ ~[] "b" ~[]*
+}
+
+testcase {
+ input "abc ";
+ output "";
+
+ s ::= [b-z] [a-z] [a-z] " "* => s
+}