EBNFer

EBNFer is a railroad diagram generator for Wordpress. It lets you use Wordpress shortcodes to parse and render Extended Backus–Naur Form diagrams.

Download EBNFer from Wordpress.org

The EBNF parser and renderer is built off of the one created by Vincent Tscherter.

Example usage:

[[ebnf title="JSON RR Diagram"]
"JSON" {
object = "{" [ ( string ':' value ) { ',' string ':' value }  ] "}".
array = '['  [ value { ',' value } ] ']'.
}
[/ebnf]]

EBNF1

Shortcode attributes:

title - Image title tag
alt - Image alt tag
link - Set to, "no" if you don't want the image tag to link to the image

Grammar use:

Enclose optional title in quotes
Enclose all grammar rules in curly brackets { GRAMMAR }
End each grammar definition with a dot or semicolon RULE;
[...] means 0 or 1 times
{...} means 0 or many times
| means OR
Group things with parentheses.

EBNF2