X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=tests%2Fmeta.g;h=d11981b5d8890588c9b874536c863f54684870cb;hb=f1321301726919a74918c3f09e58e78f66017644;hp=4cc100b451f154a7aa895bbf37ce6e7a180e0910;hpb=803319e1a90376c44262ae784b43453c763e7b7d;p=sbp.git

diff --git a/tests/meta.g b/tests/meta.g
index 4cc100b..d11981b 100644
--- a/tests/meta.g
+++ b/tests/meta.g
@@ -1,60 +1,62 @@
-s         ::=  ws grammar ws                  => "gram"
-ws       !::=  w**
-grammar   ::=  R+/ws => "grammar"
-Grammar   ::=  R+ => "grammar"
-R         ::=  word  ^"::=" Alternatives
-            |  word ^"!::=" Alternatives
-
-ec        ::=  [~\]\\\-\~] | escaped
-
-Alternatives  ::=  EquiAlt   +/ ">"
-EquiAlt       ::=  Conjuncts +/ "|"                 => "alternatives"
-
-sequence    ::= Es
-              > Es ^"/" E   /ws
-Es          ::= E+
-//es          ::= E+/ws
-
-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"
-           |    [(][)] => "epsilon"
-           |    ^"{" Alternatives "}"
-           |     "[" [\~]?  range* "]"        => "range"
-           |  E ^"*/" E
-           |  E ^"+/" E
-           |  E ^"?"
-           |  E ^"~/~"
-
-           |  E ^"-"  E
-
-           |    ^"!" E
-           |     "^" quoted => "care"
-           |    ^"`" E
-           |  E ^"#"
-           |  quoted                        => "literal"
-
-           |  (E ^"**" > E ^"*")
-           |  (E ^"++" > E ^"+")
-
-           |     "(" word ^")"
-           >    ^"(" Alternatives ")"
-
-w       !::= " "
-           | "//" [~\n]* "\n"
+s         ::=  Grammar ws                  => "gram"
+w        ::= " "
            | "\n"
            | "\r"
-an       ::= [a-zA-Z0-9_]
-word     ::= an++                           => "sify"
-quoted   ::= "\"" ([~\"\\] | escaped)* "\"" => "sify"
+ws        ::=  w** => ()
+            |  w** "//" (~[\n]*) "\n" ws => ()
+wp        ::=  w++
+Grammar   ::=  r +/ ws                        => "grammar"
+
+r         ::=  word  ^"::=" alternatives /ws
+            |  word ^"!::=" alternatives /ws
+
+alternatives  ::=  (Conjuncts +/ (!ws "|" !ws)) +/ (!ws ">" !ws)
+
+Conjuncts  ::=  Sequence
+             |  Sequence ^"&"  e*/ws   /ws
+             |  Sequence ^"&~" e*/ws   /ws
+
+ps         ::= e*/ws                              => "ps"
+             | (e+/ws !ws)? "^" Quoted (!ws e+/ws)? => "ps2"
+psy        ::= ps
+             | ps !wp ^"/" !ws e
+psx        ::= psy                   => "psy"
+//             | e "<-" psy        /ws => "psyl"
+             |        psy "->" e /ws => "psyr"
+//             | e "<-" psy "->" e /ws => "psylr"
+Sequence   ::= Quoted => "qprod"
+             > psx => "psx"
+             | psx  "=>" ^"[]"         /ws
+             | psx ^"=>" ("()"|word|Quoted) /ws
+
+ec       ::= ~[\-\]\\]
+           | escaped
+
+Range    ::= ec          => "range"
+           | ec ^"-" ec
+
+e        ::=  word                          => "nonTerminal"
+           |  Quoted                        => "literal"
+           |    ^"()"
+           |    ^"{" Sequence "}"       /ws
+           |    ^"["  Range* "]"
+
+           |  (e ^"++"    /ws > e ^"+"    /ws)
+           |  (e ^"++/" e /ws > e ^"+/" e /ws)
+           |  (e ^"**"    /ws > e ^"*"    /ws)
+           |  (e ^"**/" e /ws > e ^"*/" e /ws)
+           |  ^"!" e                    /ws
+           |  e ^"?"                    /ws
+
+           |     "(" word         ^")"  /ws
+           >    ^"(" alternatives  ")"  /ws
+           |    ^"~" e
+
+word     ::= [a-zA-Z0-9_]++
+Quoted   ::= "\"" ((~[\"\\] | escaped)+) "\""
+           | "\"\"" => ""
 escaped  ::= "\\n" => "\n"
            | "\\r" => "\r"
-           | "\\" [~nr]
+           | "\\" ~[nr]
+
+