X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=ac726191e1e925f285d80f41630fdbe512d3ba2d;hp=4b4df1fef16a16bc450ef07ff99a1ef4e406c438;hb=ea7e036150d05484ee7867e73d80b5789972edbc;hpb=6f995008673ec682df49866ac2e9623397c99679 diff --git a/tests/meta.g b/tests/meta.g index 4b4df1f..ac72619 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,54 +1,68 @@ -s ::= ws grammar ws => "gram" -ws !::= w** -grammar ::= r +/ ws => "grammar" -r ::= word ^"::=" alternatives /ws - | word ^"!::=" alternatives /ws - -alternatives ::= (conjuncts +/ (ws "|" ws)) +/ (ws ">" ws) - -conjuncts ::= sequence - | sequence ^"&" e*/ws /ws - | sequence ^"&~" e*/ws /ws - -ps ::= e*/ws => "ps" -psx ::= ps - > ps ws ^"/" e -sequence ::= psx - | psx ^"=>" (word|quoted) /ws - -ec ::= [~\-\]\\\~] - | escaped - -range ::= ec => "range" - | ec ^"-" ec - -e ::= word => "nonTerminal" - | quoted => "literal" - | ^"()" - | ^"{" sequence "}" /ws - | ^"[" (range*) "]" - | ^"[~" (range*) "]" - | ^"^" quoted /ws - | ^"!" e /ws - - | (e ws ^"**" > e ws ^"*") - | e ^"*/" e /ws - | (e ws ^"++" > e ws ^"+") - | e ^"+/" e /ws - | e ^"?" /ws - - | "(" word ^")" /ws - > ^"(" alternatives ")" /ws - -w !::= " " - | "//" ([~\n]*) "\n" - | "\n" - | "\r" -word ::= [a-zA-Z0-9_]++ -quoted ::= "\"" (([~\"\\] | escaped)+) "\"" - | "\"\"" => "" -escaped ::= "\\n" => "\n" - | "\\r" => "\r" - | "\\" [~nr] + //funkanomitron +s = ws Grammar ws +Grammar:: = Declaration +/ ws +Declaration = NonTerminal + | ^"#import" FileName /ws + | ^"#import" FileName "as" Word /ws + +FileName:: = (~[\r\n ] | escaped)+ -> [\r\n ] + +NonTerminal = NonTerminal:: Word ws "=" ws RHS + | DropNT:: Word "!" ws "=" ws RHS + | Colons:: Word "::" ws "=" ws RHS + | Word "*" ws ^"=" ws RHS + | Word "*/" Word ws ^"=" ws RHS + +RHS:: = ("|":: Sequence +/ (ws "|" ws)) +/ (ws ">" ws) + +Elements:: = e*/ws + +PreSequence = Elements + | (Quoted|Word) ^"::" PreSequence /ws + > PreSequence ^"/" e /ws + | PreSequence ^"->" e /ws + +Sequence = PreSequence + | Sequence ^"&" Elements /ws + | Sequence ^"&~" Elements /ws + +e = e ^"!" + > (Quoted|Word) ^":" e + > NonTerminalReference:: Word + | Literal:: Quoted + | ^"()" + | ^"{" PreSequence "}" /ws + | ^"[" Range* "]" + | e ^"++" /ws -> ~[/] + | e ^"+" /ws -> ~[+] + | e ^"++/" e /ws + | e ^"+/" e /ws + | e ^"**" /ws -> ~[/] + | e ^"*" /ws -> ~[*] + | e ^"**/" e /ws + | e ^"*/" e /ws + | e ^"?" /ws + | ^"^" Quoted + | "(" Word ^")" + > ^"(" RHS ")" /ws + | ^"~" e + | ^"\\{" + | ^"\\}" + +Word:: = [.a-zA-Z0-9_]++ +Quoted:: = "\"" (~[\"\\] | escaped)+ "\"" + | "\"\"" + +Range:: = ec + | ec "-" ec + +ec = ~[\-\]\\] + | escaped +escaped = "\n":: "\\n" + | "\r":: "\\r" + | "\\" ~[nr] + +ws! = [ \r\n]** + | [ \r\n]** "//" ~[\n]* "\n" ws