checkpoint

[sbp.git] / tests / meta.g

diff --git a/tests/meta.g b/tests/meta.g
index 9193c51..4fed049 100644 (file)
--- a/tests/meta.g
+++ b/tests/meta.g
@@ -1,54 +1,42 @@
 s         ::=  ws grammar ws                  => "gram"
 ws       !::=  w**
-grammar   ::=  r $$ ws => "grammar"
+grammar   ::=  r +/ ws                        => "grammar"
 r         ::=  word  ^"::=" alternatives /ws
             |  word ^"!::=" alternatives /ws
 
-alternatives  ::=  equiAlt   $$ (ws ">" ws)
-equiAlt       ::=  conjuncts $$ (ws "|" ws)          => "alternatives"
-
-sequence    ::= es
-              > es ws ^"/" e
-Es          ::= e %% (w**)
-es          ::= e %% (w**)
-
-ss ::= es | es ^"/" e /ws
+alternatives  ::=  equiAlt   +/ (ws ">" ws)
+equiAlt       ::=  conjuncts +/ (ws "|" ws)
 
 conjuncts   ::=  rewrite
-              |  rewrite ^"&"  e%%ws   /ws
-              |  rewrite ^"&~" e%%ws   /ws
+              |  rewrite ^"&"  e*/ws   /ws
+              |  rewrite ^"&~" e*/ws   /ws
+
+sequence    ::= e*/ws (ws "/" e)? => "seq"
 
-rewrite  ::=  sequence                  /ws        => "rewrite"
-           |  sequence ^"=>" word       /ws
-           |  sequence ^"=>" quoted     /ws
-           |  sequence  "=>" "()"       /ws        => "wrap"
+rewrite  ::=  sequence                     /ws => "rewrite"
+           |  sequence ^"=>" (word|quoted) /ws
 
 ec       ::= [~\-\]\\\~]
            | escaped
 
-range    ::= ec          => "range0"
-           | ec ^"-" ec  => "range1"
+range    ::= ec          => "range"
+           | ec ^"-" ec
 
-e        ::= word                             => "nonTerminalY"
-           |    [(][)] => "epsilon"
+e        ::= word                             => "nonTerminal"
+           |    [(][)]                        => "epsilon"
            |    ^"{" alternatives "}"   /ws
-           |     "["  (range*) "]" => "range"
-           |     "[~" (range*) "]" => "rangex"
-           |  e ^"%%" e                 /ws
-           |  e ^"$$" e                 /ws
-           |  e ^"?"                    /ws
-           |  e ^"~/~"                  /ws
-
-           |  e ^"-"  e                 /ws
-
+           |    ^"["  (range*) "]"
+           |    ^"[~" (range*) "]"
+           |    ^"^" quoted             /ws
            |    ^"!" e                  /ws
-           |     "^" quoted             /ws => "care"
-           |    ^"`" e                  /ws
-           |  e ^"#"                    /ws
-           |  quoted                        => "literal"
 
            |  (e ws ^"**" > e ws ^"*")
+           |  e ^"*/" e                 /ws
            |  (e ws ^"++" > e ws ^"+")
+           |  e ^"+/" e                 /ws
+           |  e ^"?"                    /ws
+
+           |  quoted                        => "literal"
 
            |     "(" word ^")"          /ws
            >    ^"(" alternatives ")"   /ws
@@ -58,8 +46,9 @@ w       !::= " "
            | "\n"
            | "\r"
 an       ::= [a-zA-Z0-9_]
-word     ::= an++                           => "sify"
-quoted   ::= "\"" (([~\"\\] | escaped)*) "\"" => "sify"
+word     ::= an++
+quoted   ::= "\"" (([~\"\\] | escaped)+) "\""
+           | "\"\"" => ""
 escaped  ::= "\\n" => "\n"
            | "\\r" => "\r"
            | "\\" [~nr]