X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=c9d588d9f2962181bc1b7debfa8120a8b19a1726;hp=975e855f07036faaa6c1bdf489a34e03082aaba8;hb=bc7ff8b63529e420f7caa244d3bf74471f55cb7b;hpb=202da2dfa080e426c29c14123b3f2485b53f12dd diff --git a/tests/meta.g b/tests/meta.g index 975e855..c9d588d 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,26 +1,20 @@ s ::= ws grammar ws => "gram" ws !::= w** -grammar ::= r +/ ws => "grammar" +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 @@ -28,37 +22,31 @@ ec ::= [~\-\]\\\~] range ::= ec => "range" | ec ^"-" ec -e ::= word => "nonTerminalY" - | [(][)] => "epsilon" - | ^"{" alternatives "}" /ws +e ::= word => "nonTerminal" + | quoted => "literal" + | ^"()" + | ^"{" sequence "}" /ws | ^"[" (range*) "]" | ^"[~" (range*) "]" - | e ^"+/" e /ws - | e ^"*/" e /ws - | e ^"?" /ws - | e ^"~/~" /ws - - | e ^"-" e /ws - - | ^"!" e /ws - | "^" quoted /ws => "care" - | ^"`" e /ws - | e ^"#" /ws - | quoted => "literal" + | ^"^" quoted /ws +// | ^"!" e /ws | (e ws ^"**" > e ws ^"*") + | e ^"*/" e /ws | (e ws ^"++" > e ws ^"+") + | e ^"+/" e /ws + | e ^"?" /ws - | "(" word ^")" /ws - > ^"(" alternatives ")" /ws + | "(" word ^")" /ws + > ^"(" alternatives ")" /ws w !::= " " | "//" ([~\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]