X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=4fed049ea82deab6695b3f89ba885b88c346ac00;hp=ceb82ac93ccf2438fe680b177b662a0e37c88827;hb=ba01065d943324012ce347b80044dcf825f21845;hpb=2a43edc3783a51c0ada2269835d833fa4ce8ab33 diff --git a/tests/meta.g b/tests/meta.g index ceb82ac..4fed049 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,56 +1,56 @@ -s ::= w* Grammar w* => "gram" -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 ^"#" - | quoted => "literal" +s ::= ws grammar ws => "gram" +ws !::= w** +grammar ::= r +/ ws => "grammar" +r ::= word ^"::=" alternatives /ws + | word ^"!::=" alternatives /ws + +alternatives ::= equiAlt +/ (ws ">" ws) +equiAlt ::= conjuncts +/ (ws "|" ws) + +conjuncts ::= rewrite + | rewrite ^"&" e*/ws /ws + | rewrite ^"&~" e*/ws /ws + +sequence ::= e*/ws (ws "/" e)? => "seq" + +rewrite ::= sequence /ws => "rewrite" + | sequence ^"=>" (word|quoted) /ws + +ec ::= [~\-\]\\\~] + | escaped - | (E ^"**" > E ^"*") - | (E ^"++" > E ^"+") +range ::= ec => "range" + | ec ^"-" ec - | "(" word ^")" - > ^"(" Alternatives ")" +e ::= word => "nonTerminal" + | [(][)] => "epsilon" + | ^"{" alternatives "}" /ws + | ^"[" (range*) "]" + | ^"[~" (range*) "]" + | ^"^" quoted /ws + | ^"!" e /ws + + | (e ws ^"**" > e ws ^"*") + | e ^"*/" e /ws + | (e ws ^"++" > e ws ^"+") + | e ^"+/" e /ws + | e ^"?" /ws + + | quoted => "literal" + + | "(" word ^")" /ws + > ^"(" alternatives ")" /ws w !::= " " - | "//" [~\n]* "\n" + | "//" ([~\n]*) "\n" | "\n" | "\r" an ::= [a-zA-Z0-9_] -word ::= an++ => "sify" -quoted ::= "\"" ([~\"\\] | escaped)* "\"" => "sify" +word ::= an++ +quoted ::= "\"" (([~\"\\] | escaped)+) "\"" + | "\"\"" => "" escaped ::= "\\n" => "\n" | "\\r" => "\r" | "\\" [~nr] + +