X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=ed87f5c555bc4abb1198a6c8170d5c9cfa249195;hp=9193c51b8f03914da13c7ea70b5d4badb2600e74;hb=87f214f3da9f43c3ab93923313845c372f9a96be;hpb=12bf5c7b9f3fd826e770fd3444fdc387faf1476e diff --git a/tests/meta.g b/tests/meta.g index 9193c51..ed87f5c 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,65 +1,55 @@ s ::= ws grammar ws => "gram" -ws !::= w** -grammar ::= r $$ ws => "grammar" +ws !::= w** | ws "//" ([~\n]*) "\n" ws +wp !::= w++ +grammar ::= r +/ ws => "grammar" + r ::= word ^"::=" alternatives /ws | word ^"!::=" alternatives /ws -alternatives ::= equiAlt $$ (ws ">" ws) -equiAlt ::= conjuncts $$ (ws "|" ws) => "alternatives" - -sequence ::= es - > es ws ^"/" e -Es ::= e %% (w**) -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 -range ::= ec => "range0" - | ec ^"-" ec => "range1" - -e ::= word => "nonTerminalY" - | [(][)] => "epsilon" - | ^"{" alternatives "}" /ws - | "[" (range*) "]" => "range" - | "[~" (range*) "]" => "rangex" - | e ^"%%" e /ws - | e ^"$$" e /ws - | e ^"?" /ws - | e ^"~/~" /ws +range ::= ec => "range" + | ec ^"-" ec - | 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_]++ +quoted ::= "\"" (([~\"\\] | escaped)+) "\"" + | "\"\"" => "" escaped ::= "\\n" => "\n" | "\\r" => "\r" | "\\" [~nr]