MoinMoin: MoinDev/MoinSyntax

Here we try to describe the Moin syntax in EBNF (Backus–Naur form).This should help in many ways.

• This is a work in progress.

MediaWiki has something like this here: EBNF/Draft, I have taken this as a starter and also to make syntax more comparable.

General

digit         = ("1"|"2"|"3"|"4"|"5"|"6"|"7"|"8"|"9"|"0");
URL           = { ASCII letter }, "://", { URL char };
<lowercase-letter> = ("a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | "k" | "l" | "m"
                | "n" | "o" | "p" | "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z");
<uppercase-letter> = ("A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" | "J" | "K" | "L" | "M"
                | "N" | "O" | "P" | "Q" | "R" | "S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z");
ASCII letter  ::= <lower case ASCII letter> <upper case ASCII letter>

URL char      = (ASCII letter | digit | "-" | "_" | "." | "~" | "!" | "*" | "'" | "(" | ")" | ";"
                | ":" | "@" | "&" | "=" | "+" | "$" | "," | "/" | "?" | "%" | "#" | "[" | "]");
Unicode char  = (* Assume this is all valid Unicode characters. *);
text          = { Unicode char };
quo
full pagename = [ namespace, ":" | ":" ] pagename;
namespace     = Unicode char, { Unicode char };
pagename      = Unicode char, { Unicode char };

Links

wiki name link   = 
start link    = "[";
end link      = "]";
internal link = start link, full pagename, ["|", label], end link, label extension;
external link = URL | (start link, URL, [whitespace Label], endLink, label extension);
redirect      = "#REDIRECT", internal link;
header link   = "/*", text, "*/"; (* Huh? *)
ISBN link     = digit, ["-"|" "], 3 * digit, ["-"|" "], 5 * digit,
                [("-"|" "),(digit|"X"|"x")];