X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=f9e0e67830ed7d37a41b24b27e42e8006c946a49;hp=e41b7703693ef08d12b61ab7553c2a4ccdfeae7b;hb=93ea8e84f6eadb1b2549754bbb832c75e4730e86;hpb=baee74cbe9714c0bdaa2f39b4523647090cf7ef5 diff --git a/tests/meta.g b/tests/meta.g index e41b770..f9e0e67 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -4,23 +4,17 @@ grammar ::= r +/ ws => "grammar" r ::= word ^"::=" alternatives /ws | word ^"!::=" alternatives /ws -alternatives ::= equiAlt +/ (ws ">" ws) -equiAlt ::= conjuncts +/ (ws "|" ws) => "alternatives" +alternatives ::= (conjuncts +/ (ws "|" ws)) +/ (ws ">" ws) -sequence ::= es - > es ws ^"/" e -es ::= e */ (w**) +conjuncts ::= sequence + | sequence ^"&" e*/ws /ws + | sequence ^"&~" e*/ws /ws -ss ::= es | es ^"/" e /ws - -conjuncts ::= rewrite - | rewrite ^"&" e*/ws /ws - | rewrite ^"&~" e*/ws /ws - -rewrite ::= sequence /ws => "rewrite" - | sequence ^"=>" word /ws - | sequence ^"=>" quoted /ws - | sequence "=>" "()" /ws => "wrap" +ps ::= e*/ws => "ps" +psx ::= ps + > ps ^"/" e /ws +sequence ::= psx + | psx ^"=>" (word|quoted) /ws ec ::= [~\-\]\\\~] | escaped @@ -28,35 +22,29 @@ ec ::= [~\-\]\\\~] range ::= ec => "range" | ec ^"-" ec -e ::= word => "nonTerminalY" - | [(][)] => "epsilon" - | ^"{" alternatives "}" /ws +e ::= word => "nonTerminal" + | quoted => "literal" + | ^"()" + | ^"{" sequence "}" /ws | ^"[" (range*) "]" | ^"[~" (range*) "]" | ^"^" quoted /ws - | e ^"~/~" /ws | ^"!" e /ws - | ^"`" e /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 + | "(" word ^")" /ws + > ^"(" alternatives ")" /ws w !::= " " | "//" ([~\n]*) "\n" | "\n" | "\r" -an ::= [a-zA-Z0-9_] -word ::= an++ +word ::= [a-zA-Z0-9_]++ quoted ::= "\"" (([~\"\\] | escaped)+) "\"" | "\"\"" => "" escaped ::= "\\n" => "\n"