X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fmeta.g;h=ac726191e1e925f285d80f41630fdbe512d3ba2d;hp=abe03f322c8e4b7b7b3abea7fbb9ffe98b5934fa;hb=ea7e036150d05484ee7867e73d80b5789972edbc;hpb=795b267302e8829c3131bbeb1b291d63e9094f4d diff --git a/tests/meta.g b/tests/meta.g index abe03f3..ac72619 100644 --- a/tests/meta.g +++ b/tests/meta.g @@ -1,44 +1,37 @@ -// use 'a'-'z' or 'a-z' instead of [a-z]? -// EOF token? -// #include (with renaming?) + //funkanomitron +s = ws Grammar ws -s = ws! Grammar ws! +Grammar:: = Declaration +/ ws -Grammar = Declaration +/ ws +Declaration = NonTerminal + | ^"#import" FileName /ws + | ^"#import" FileName "as" Word /ws -Declaration = NonTerminal - | ^"#import" ws! FileName (ws! "as" ws! Word)? +FileName:: = (~[\r\n ] | escaped)+ -> [\r\n ] -FileName = FileNameChar+ -> [\r\n ] -FileNameChar = Space:: "\\ " - | ~[\r\n ] - -NonTerminal = Word "=" RHS /ws - | Word "*" ws! ^"=" ws! RHS - | Word "*/" Word ws! ^"=" ws! RHS +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 +RHS:: = ("|":: Sequence +/ (ws "|" ws)) +/ (ws ">" ws) -Sequence = psx:: PreSequence - | Sequence ^"&" Elements /ws - | Sequence ^"&~" Elements /ws +Elements:: = e*/ws -ec = ~[\-\]\\] - | escaped +PreSequence = Elements + | (Quoted|Word) ^"::" PreSequence /ws + > PreSequence ^"/" e /ws + | PreSequence ^"->" e /ws -Range = ec - | ec "-" ec +Sequence = PreSequence + | Sequence ^"&" Elements /ws + | Sequence ^"&~" Elements /ws -e = (Quoted|Word) ^":" e - > NonTerminalReference - | Literal +e = e ^"!" + > (Quoted|Word) ^":" e + > NonTerminalReference:: Word + | Literal:: Quoted | ^"()" | ^"{" PreSequence "}" /ws | ^"[" Range* "]" @@ -50,26 +43,26 @@ e = (Quoted|Word) ^":" e | e ^"*" /ws -> ~[*] | e ^"**/" e /ws | e ^"*/" e /ws - | e ^"!" | e ^"?" /ws | ^"^" Quoted + | "(" Word ^")" > ^"(" RHS ")" /ws | ^"~" e | ^"\\{" | ^"\\}" -NonTerminalReference = Word -Literal = Quoted -Word = [.a-zA-Z0-9_]++ -Quoted = "\"" ((~[\"\\] | escaped)+) "\"" - | EmptyString - EmptyString = "\"\"" +Word:: = [.a-zA-Z0-9_]++ +Quoted:: = "\"" (~[\"\\] | escaped)+ "\"" + | "\"\"" + +Range:: = ec + | ec "-" ec -escaped = "\n":: "\\n" - | "\r":: "\\r" - | "\\" ~[nr] +ec = ~[\-\]\\] + | escaped +escaped = "\n":: "\\n" + | "\r":: "\\r" + | "\\" ~[nr] -w = " " | "\n" | "\r" -ws = w** - | w** "//" (~[\n])*! "\n" ws! -wp = w++ +ws! = [ \r\n]** + | [ \r\n]** "//" ~[\n]* "\n" ws