checkpoint

[sbp.git] / tests / meta.g

diff --git a/tests/meta.g b/tests/meta.g
index e2713f9..bb7cd11 100644 (file)
--- a/tests/meta.g
+++ b/tests/meta.g
@@ -7,19 +7,13 @@ r         ::=  word  ^"::=" alternatives /ws
 alternatives  ::=  equiAlt   +/ (ws ">" ws)
 equiAlt       ::=  conjuncts +/ (ws "|" ws)
 
-sequence    ::= es
-              > es ws ^"/" e
-es          ::= e */ (w**)
+conjuncts   ::=  sequence
+              |  sequence ^"&"  e*/ws   /ws
+              |  sequence ^"&~" e*/ws   /ws
 
-ss ::= es | es ^"/" e /ws
-
-conjuncts   ::=  rewrite
-              |  rewrite ^"&"  e*/ws   /ws
-              |  rewrite ^"&~" e*/ws   /ws
-
-rewrite  ::=  sequence                  /ws        => "rewrite"
-           |  sequence ^"=>" word       /ws
-           |  sequence ^"=>" quoted     /ws
+sequence    ::= e*/ws
+                (ws "/" e)?
+                (ws "=>" ws (word|quoted))?              => "seq"
 
 ec       ::= [~\-\]\\\~]
            | escaped
@@ -50,8 +44,7 @@ w       !::= " "
            | "//" ([~\n]*) "\n"
            | "\n"
            | "\r"
-an       ::= [a-zA-Z0-9_]
-word     ::= an++
+word     ::= [a-zA-Z0-9_]++
 quoted   ::= "\"" (([~\"\\] | escaped)+) "\""
            | "\"\"" => ""
 escaped  ::= "\\n" => "\n"