X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=713383a8ad1a88543c56d5cf14eb96d441ef5962;hp=1dccbd60d29a352a2ec5bd60a8855135619b787d;hb=241b14cc03dae98e9a5805b6bef2ecf008508ae0;hpb=ea5d0a5e3dffb5ba0143179fd28608c2de8046e0 diff --git a/tests/meta.g b/tests/meta.g index 1dccbd6..713383a 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,46 +1,59 @@ -s ::= w* Grammar w* => "gram" -Grammar ::= R+ => "grammar" -R ::= word ^"::=" Class+/gt - | word ^"!::=" Class+/gt +s ::= ws grammar ws => "gram" +ws !::= w** +grammar ::= r $$ ws => "grammar" +r ::= word ^"::=" alternatives /ws + | word ^"!::=" alternatives /ws -ec ::= [~\]\\\-\~] | escaped +alternatives ::= equiAlt $$ (ws ">" ws) +equiAlt ::= conjuncts $$ (ws "|" ws) => "alternatives" -Class ::= Rewrite +/ "|" => "alternatives" +sequence ::= Es + > Es ws ^"/" e +Es ::= e+ +es ::= e %% ws -Rewrite ::= Rewritex - | Rewritex ^"&" E+ - | Rewritex ^"&~" E+ +ss ::= es | es ^"/" e /ws -Rewritex ::= E+ => "rewrite" - | E+ ^"=>" word - | E+ ^"=>" quoted - | E+ "=>" "()" => "wrap" +conjuncts ::= rewrite + | rewrite ^"&" e%%ws /ws + | rewrite ^"&~" e%%ws /ws -range ::= ec => "range0" | ec ^"-" ec => "range0" -gt !::= ">" -bar !::= "|" -E ::= word => "nonTerminalY" +rewrite ::= sequence /ws => "rewrite" + | sequence ^"=>" word /ws + | sequence ^"=>" quoted /ws + | sequence "=>" "()" /ws => "wrap" + +ec ::= [~\-\]\\\~] + | escaped + +range ::= ec => "range0" + | ec ^"-" ec => "range1" + +e ::= word => "nonTerminalY" | [(][)] => "epsilon" - | ^"{" Class+/gt "}" - | "[" [\~]? range* "]" => "range" - | E ^"*/" E - | E ^"+/" E - | E ^"?" - | E ^"~/~" - - | E ^"-" E - - | ^"!" E - | "^" quoted => "care" - | ^"`" E - | E ^"#" + | ^"{" alternatives "}" /ws + | "[" ranges "]" => "range" + | "[~" ranges "]" => "rangex" + | e ^"%%" e /ws + | e ^"$$" e /ws + | e ^"?" /ws + | e ^"~/~" /ws + + | e ^"-" e /ws + + | ^"!" e /ws + | "^" quoted /ws => "care" + | ^"`" e /ws + | e ^"#" /ws | quoted => "literal" - | (E ^"**" > E ^"*") - | (E ^"++" > E ^"+") + | (e ws ^"**" > e ws ^"*") + | (e ws ^"++" > e ws ^"+") + + | "(" word ^")" /ws + > ^"(" alternatives ")" /ws - | "(" word ^")" - > ^"(" Class+/gt ")" +ranges ::= range* w !::= " " | "//" [~\n]* "\n" @@ -52,3 +65,5 @@ quoted ::= "\"" ([~\"\\] | escaped)* "\"" => "sify" escaped ::= "\\n" => "\n" | "\\r" => "\r" | "\\" [~nr] + +