X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=785938668a3d956dd3467096663f67ebefe6d36e;hp=29663f7c4b2c91898c8372df2d7bf1dd5e942b27;hb=9ded11559a1b6f817e99355b1c9e2c88042e91d4;hpb=c1325de42a4ddfad3ff9b10bfdda11078e38e8a6

diff --git a/tests/meta.g b/tests/meta.g
index 29663f7..7859386 100644
--- a/tests/meta.g
+++ b/tests/meta.g
@@ -1,58 +1,60 @@
-s         ::=  w* Grammar w*                  => "gram"
-ws       !::= w*
-grammar   ::=  R+/ws => "grammar"
-Grammar   ::=  R+ => "grammar"
-R         ::=  word  ^"::=" Alternatives
-            |  word ^"!::=" Alternatives
-
-ec        ::=  [~\]\\\-\~] | escaped
-
-Alternatives  ::=  EquiAlt   +/ ">"
-EquiAlt       ::=  Conjuncts +/ "|"                 => "alternatives"
-
-Sequence    ::= E+ ^"/" E
-              > E+
-
-Conjuncts   ::=  Rewrite
-              |  Rewrite ^"&"  Sequence
-              |  Rewrite ^"&~" Sequence
-
-Rewrite  ::=  Sequence                             => "rewrite"
-           |  Sequence ^"=>" word
-           |  Sequence ^"=>" quoted
-           |  Sequence  "=>" "()"                  => "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 ^"#"
+s         ::=  grammar ws                  => "gram"
+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  "=>" ^"[]"         /ws
+             | psx ^"=>" (word|quoted) /ws
+
+ec       ::= ~[\-\]\\]
+           | escaped
+
+range    ::= ec          => "range"
+           | ec ^"-" ec
+
+e        ::=  word                          => "nonTerminal"
            |  quoted                        => "literal"
+           |    ^"()"
+           |    ^"{" sequence "}"       /ws
+           |    ^"["  range* "]"
 
-           |  (E ^"**" > E ^"*")
-           |  (E ^"++" > E ^"+")
+           |  (e ^"++"    /ws > e ^"+"    /ws)
+           |  (e ^"++/" e /ws > e ^"+/" e /ws)
+           |  (e ^"**"    /ws > e ^"*"    /ws)
+           |  (e ^"**/" e /ws > e ^"*/" e /ws)
+           |  e ^"?"                    /ws
 
-           |     "(" word ^")"
-           >    ^"(" Alternatives ")"
+           |     "(" word         ^")"  /ws
+           >    ^"(" alternatives  ")"  /ws
+           |    ^"~" e
 
 w       !::= " "
-           | "//" [~\n]* "\n"
            | "\n"
            | "\r"
-an       ::= [a-zA-Z0-9_]
-word     ::= an++                           => "sify"
-quoted   ::= "\"" ([~\"\\] | escaped)* "\"" => "sify"
+word     ::= [a-zA-Z0-9_]++
+quoted   ::= "\"" ((~[\"\\] | escaped)+) "\""
+           | "\"\"" => ""
 escaped  ::= "\\n" => "\n"
            | "\\r" => "\r"
-           | "\\" [~nr]
+           | "\\" ~[nr]
+
+