X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=bb7cd114d94bf05ab028246df247490f0b38e86d;hp=c89fae1edb27d99061ae7a0da3a0a7f2d1e3613b;hb=8ad399319f15cd179fa05a5052314a8f1d7df271;hpb=81b213c3a4345486c2f96f1c44e93d4e38134102 diff --git a/tests/meta.g b/tests/meta.g index c89fae1..bb7cd11 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,62 +1,52 @@ s ::= ws grammar ws => "gram" ws !::= w** -grammar ::= r$$ws => "grammar" +grammar ::= r +/ ws => "grammar" r ::= word ^"::=" alternatives /ws | word ^"!::=" alternatives /ws -ec ::= [~\]\\\-\~] | escaped +alternatives ::= equiAlt +/ (ws ">" ws) +equiAlt ::= conjuncts +/ (ws "|" ws) -alternatives ::= equiAlt $$ (ws ">" ws) -equiAlt ::= conjuncts $$ (ws "|" ws) => "alternatives" +conjuncts ::= sequence + | sequence ^"&" e*/ws /ws + | sequence ^"&~" e*/ws /ws -sequence ::= Es - > Es ^"/" e /ws -Es ::= e+ -es ::= e$$ws +sequence ::= e*/ws + (ws "/" e)? + (ws "=>" ws (word|quoted))? => "seq" +ec ::= [~\-\]\\\~] + | escaped -conjuncts ::= rewrite - | rewrite ^"&" sequence /ws - | rewrite ^"&~" sequence /ws +range ::= ec => "range" + | ec ^"-" ec -rewrite ::= sequence /ws => "rewrite" - | sequence ^"=>" word /ws - | sequence ^"=>" quoted /ws - | sequence "=>" "()" /ws => "wrap" - -range ::= ec => "range0" - | ec ^"-" ec => "range0" - -e ::= word => "nonTerminalY" - | [(][)] => "epsilon" +e ::= word => "nonTerminal" + | [(][)] => "epsilon" | ^"{" alternatives "}" /ws - | "[" [\~]? range* "]" => "range" - | e ^"%%" e /ws - | e ^"$$" e /ws - | e ^"?" /ws - | e ^"~/~" /ws - - | e ^"-" e /ws - + | ^"[" (range*) "]" + | ^"[~" (range*) "]" + | ^"^" quoted /ws | ^"!" e /ws - | "^" quoted /ws => "care" - | ^"`" e /ws - | e ^"#" /ws - | quoted => "literal" | (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 ::= [a-zA-Z0-9_]++ +quoted ::= "\"" (([~\"\\] | escaped)+) "\"" + | "\"\"" => "" escaped ::= "\\n" => "\n" | "\\r" => "\r" | "\\" [~nr]