X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=2779b7c8f6a618a4d0a879580376179b40c10cc1;hp=e4a2518c2555cc660787b619d9c7174183bf2582;hb=5cf6851e385edfdec4955120e03bf7e282dc8a68;hpb=d79a5062fbe0211d0ad3459d6a545a5270f6efbd diff --git a/tests/meta.g b/tests/meta.g index e4a2518..2779b7c 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -5,22 +5,15 @@ r ::= word ^"::=" alternatives /ws | word ^"!::=" alternatives /ws alternatives ::= equiAlt +/ (ws ">" ws) -equiAlt ::= conjuncts +/ (ws "|" ws) => "alternatives" +equiAlt ::= conjuncts +/ (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" +sequence ::= e*/ws + (ws "/" e)? + (ws "=>" ws (word|quoted))? => "seq" ec ::= [~\-\]\\\~] | escaped @@ -28,36 +21,31 @@ ec ::= [~\-\]\\\~] range ::= ec => "range" | ec ^"-" ec -e ::= word => "nonTerminalY" - | [(][)] => "epsilon" +e ::= word => "nonTerminal" + | quoted => "literal" + | ^"()" | ^"{" alternatives "}" /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++ -quoted ::= "\"" (([~\"\\] | escaped)*) "\"" => "sify" +word ::= [a-zA-Z0-9_]++ +quoted ::= "\"" (([~\"\\] | escaped)+) "\"" + | "\"\"" => "" escaped ::= "\\n" => "\n" | "\\r" => "\r" | "\\" [~nr]