checkpoint

[sbp.git] / tests / meta.g

diff --git a/tests/meta.g b/tests/meta.g
index 8c3a343..7b1595d 100644 (file)
--- a/tests/meta.g
+++ b/tests/meta.g
@@ -1,4 +1,6 @@
 s         ::=  w* Grammar w*                  => "gram"
+ws       !::=  w*
+grammar   ::=  R+/ws => "grammar"
 Grammar   ::=  R+ => "grammar"
 R         ::=  word  ^"::=" Alternatives
             |  word ^"!::=" Alternatives
@@ -8,15 +10,17 @@ ec        ::=  [~\]\\\-\~] | escaped
 Alternatives  ::=  EquiAlt   +/ ">"
 EquiAlt       ::=  Conjuncts +/ "|"                 => "alternatives"
 
-Sequence    ::= E+
-Conjuncts   ::=  Rewrite
-              |  Rewrite ^"&"  Sequence
-              |  Rewrite ^"&~" Sequence
+Sequence    ::= E+ ^"/" E
+              > E+
 
-Rewrite  ::=  Sequence                             => "rewrite"
-           |  Sequence ^"=>" word
-           |  Sequence ^"=>" quoted
-           |  Sequence  "=>" "()"                  => "wrap"
+Conjuncts   ::=  rewrite
+              |  rewrite ^"&"  Sequence
+              |  rewrite ^"&~" Sequence
+
+rewrite  ::=  Sequence                  /ws        => "rewrite"
+           |  Sequence ^"=>" word       /ws
+           |  Sequence ^"=>" quoted     /ws
+           |  Sequence  "=>" "()"       /ws        => "wrap"
 
 range    ::= ec => "range0" | ec ^"-" ec      => "range0"
 E        ::= word                             => "nonTerminalY"