X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=8a5b7e17f3573d7272e103a720bd40ecaa84aa8e;hp=fa2b98f03e6e9cd8c9d47b53d9ac153d3b08a3ec;hb=8633a1ff957ac9ccbafa5e897bc8b9f17eadab02;hpb=cb5151d11037144c14809f6516ce5c1f1976ef7f diff --git a/tests/meta.g b/tests/meta.g index fa2b98f..8a5b7e1 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,24 +1,23 @@ s ::= ws grammar ws => "gram" ws !::= w** +wp !::= w++ grammar ::= r +/ ws => "grammar" + r ::= word ^"::=" alternatives /ws | word ^"!::=" alternatives /ws -alternatives ::= equiAlt +/ (ws ">" ws) -equiAlt ::= conjuncts +/ (ws "|" ws) - -sequence ::= es - > es ws ^"/" e -es ::= e */ (w**) +alternatives ::= (conjuncts +/ (ws "|" ws)) +/ (ws ">" ws) -ss ::= es => "seq" | es ^"/" e /ws +conjuncts ::= sequence + | sequence ^"&" e*/ws /ws + | sequence ^"&~" e*/ws /ws -conjuncts ::= rewrite - | rewrite ^"&" e*/ws /ws - | rewrite ^"&~" e*/ws /ws - -rewrite ::= sequence /ws => "rewrite" - | sequence ^"=>" (word|quoted) /ws +ps ::= e*/ws => "ps" + | (e+/ws ws)? "^" quoted (ws e+/ws)? => "ps2" +psx ::= ps + | ps wp ^"/" ws e +sequence ::= psx + | psx ^"=>" (word|quoted) /ws ec ::= [~\-\]\\\~] | escaped @@ -26,13 +25,12 @@ ec ::= [~\-\]\\\~] range ::= ec => "range" | ec ^"-" ec -e ::= word => "nonTerminal" - | [(][)] => "epsilon" - | ^"{" alternatives "}" /ws - | ^"[" (range*) "]" - | ^"[~" (range*) "]" - | ^"^" quoted /ws - | ^"!" e /ws +e ::= word => "nonTerminal" + | quoted => "literal" + | ^"()" + | ^"{" sequence "}" /ws + | ^"[" range* "]" + | ^"[~" range* "]" | (e ws ^"**" > e ws ^"*") | e ^"*/" e /ws @@ -40,17 +38,13 @@ e ::= word => "nonTerminal" | 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"