X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=8be950d3eba351373e4c573f237fe796dc764f1d;hp=6c4110227835da62ccf17e2bba2c41ed4e5e3b68;hb=56319e11eb20cb67c4221b0d7a2567ec3b2df002;hpb=41f3013f707529437b829c8c0e6c447b550749e5 diff --git a/tests/meta.g b/tests/meta.g index 6c41102..8be950d 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,26 +1,27 @@ s ::= ws grammar ws => "gram" ws !::= w** -grammar ::= r +/ ws => "grammar" +wp !::= w++ +grammar ::= r +/ ws => "grammar" + r ::= word ^"::=" alternatives /ws | word ^"!::=" alternatives /ws -alternatives ::= equiAlt +/ (ws ">" ws) -equiAlt ::= conjuncts +/ (ws "|" ws) => "alternatives" - -sequence ::= es - > es ws ^"/" e -es ::= e */ (w**) - -ss ::= es | es ^"/" e /ws +alternatives ::= (conjuncts +/ (ws "|" ws)) +/ (ws ">" ws) -conjuncts ::= rewrite - | rewrite ^"&" e*/ws /ws - | rewrite ^"&~" e*/ws /ws +conjuncts ::= sequence + | sequence ^"&" e*/ws /ws + | sequence ^"&~" e*/ws /ws -rewrite ::= sequence /ws => "rewrite" - | sequence ^"=>" word /ws - | sequence ^"=>" quoted /ws - | sequence "=>" "()" /ws => "wrap" +ps ::= e*/ws => "ps" + | (e+/ws ws)? "^" quoted (ws e+/ws)? => "ps2" +psy ::= ps + | ps wp ^"/" ws e +psx ::= psy ^"?=>" e /ws + | psy ^"!=>" e /ws + > psy +sequence ::= quoted => "qprod" + > psx + | psx ^"=>" (word|quoted) /ws ec ::= [~\-\]\\\~] | escaped @@ -28,37 +29,28 @@ ec ::= [~\-\]\\\~] range ::= ec => "range" | ec ^"-" ec -e ::= word => "nonTerminalY" - | [(][)] => "epsilon" - | ^"{" alternatives "}" /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 +e ::= word => "nonTerminal" | quoted => "literal" + | ^"()" + | ^"{" sequence "}" /ws + | ^"[" range* "]" + | ^"[~" range* "]" + + | (e ^"++" /ws > e ^"+" /ws) + | (e ^"++/" e /ws > e ^"+/" e /ws) + | (e ^"**" /ws > e ^"*" /ws) + | (e ^"**/" e /ws > e ^"*/" e /ws) + | e ^"?" /ws - | (e ws ^"**" > e ws ^"*") - | (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_]+ !=> [a-zA-Z0-9_] +quoted ::= "\"" (([~\"\\] | escaped)+) "\"" + | "\"\"" => "" escaped ::= "\\n" => "\n" | "\\r" => "\r" | "\\" [~nr]