X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=17f039903c16260fee556f23eac42f9c3f45dac6;hp=31397949a77b10efdcf15e5b5b02685a607bd407;hb=4378d20232cd88fb2a57edc5a5114f952ab58a18;hpb=8ac1795e6098dcf10b94a854351162695181b83d

diff --git a/tests/meta.g b/tests/meta.g
index 3139794..17f0399 100644
--- a/tests/meta.g
+++ b/tests/meta.g
@@ -1,58 +1,73 @@
-s           ::=  !ws Grammar ws              => "gram"
-Grammar     ::=  NonTerminal +/ ws           => "grammar"
-NonTerminal ::=  word  ^"::=" RHS /ws
+// use 'a'-'z' or 'a-z' instead of [a-z]?
+// EOF token?
+// #include (with renaming?)
 
-RHS         ::=  (Conjuncts +/ (!ws "|" !ws)) +/ (!ws ">" !ws)
+s             =  ws! Grammar ws!
 
-Conjuncts   ::=  Sequence
-              |  Sequence ^"&"  Elements  /ws
-              |  Sequence ^"&~" Elements  /ws
-Elements    ::=  e*/ws
+Grammar       =  Declaration +/ ws
 
-psy         ::= Elements => "ps"
-              | psy !wp ^"/"  !ws e
-              | psy     ^"->"     e /ws
-              | psy     ^"=>" ("[]"|"()"|word|Quoted) /ws
-Sequence    ::= Quoted => "qprod"
-              > psy    => "psx"
+Declaration   =  NonTerminal
+              |  ^"#import" ws! FileName (ws! "as" ws! Word)?
 
-ec          ::= ~[\-\]\\]
+FileName      = FileNameChar+ -> [\r\n ]
+FileNameChar  = Space:: "\\ "
+              | ~[\r\n ]
+
+NonTerminal   =  Word           "="     RHS /ws
+              |  Word  "*" ws! ^"=" ws! RHS
+              |  Word  "*/" Word ws! ^"=" ws! RHS
+       
+RHS           =  (Sequence +/ (ws! "|" ws!)) +/ (ws! ">" ws!)
+
+Elements      =  e*/ws
+
+PreSequence   =  Elements
+              |  (Quoted|Word)   ^"::" PreSequence /ws
+              >  PreSequence     ^"/"      e       /ws
+              |  PreSequence     ^"->"     e       /ws
+
+Sequence      = psx:: PreSequence
+              |       Sequence ^"&"  Elements /ws
+              |       Sequence ^"&~" Elements /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
-              |    ^"^" Quoted             /ws
-
-              |     "(" word         ^")"  /ws
-              >    ^"(" RHS  ")"           /ws
-              |    ^"~" e
-
-word     ::= [a-zA-Z0-9_]++
-Quoted   ::= "\"" ((~[\"\\] | escaped)+) "\""
-           | "\"\"" => ""
-escaped  ::= "\\n" => "\n"
-           | "\\r" => "\r"
-           | "\\" ~[nr]
-
-
-w           ::= " " | "\n" | "\r"
-ws          ::=  w** => ()
-              |  w** "//" ~[\n]* "\n" ws => ()
-wp          ::=  w++
+Range         = ec
+              | ec "-" ec
+
+e             =                (Quoted|Word) ^":" e
+              >                NonTerminalReference
+              |                Literal
+              |                  ^"()"
+              |                  ^"{" PreSequence "}"    /ws
+              |                  ^"["  Range* "]"
+              |                e ^"++"                   /ws -> ~[/]
+              |                e ^"+"                    /ws -> ~[+]
+              |                e ^"++/" e                /ws        
+              |                e ^"+/"  e                /ws        
+              |                e ^"**"                   /ws -> ~[/]
+              |                e ^"*"                    /ws -> ~[*]
+              |                e ^"**/" e                /ws        
+              |                e ^"*/"  e                /ws        
+              |                     e ^"!"
+              |                e ^"?"                    /ws
+              |                  ^"^"   Quoted
+              >                  ^"(" RHS  ")"           /ws
+              |                  ^"~" e
+
+NonTerminalReference = Word
+Literal              = Quoted
+Word                 = [.a-zA-Z0-9_]++
+Quoted               = "\"" ((~[\"\\] | escaped)+) "\""
+                     | EmptyString
+                       EmptyString = "\"\""
+
+escaped    = "\n":: "\\n"
+           | "\r":: "\\r"
+           |        "\\" ~[nr]
+
+w             = " " | "\n" | "\r"
+ws            =  w**
+              |  w** "//" (~[\n])*! "\n" ws!
+wp            =  w++