asciigoat's core library
https://asciigoat.org/core
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
25 lines
800 B
25 lines
800 B
(* vim: set ft=ebnf: *) |
|
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" ; |
|
digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ; |
|
symbol = "[" | "]" | "{" | "}" | "(" | ")" | "<" | ">" |
|
| "'" | '"' | "=" | "|" | "." | "," | ";" ; |
|
character = letter | digit | symbol | "_" ; |
|
|
|
identifier = letter , { letter | digit | "_" } ; |
|
terminal = "'" , character , { character } , "'" |
|
| '"' , character , { character } , '"' ; |
|
|
|
lhs = identifier ; |
|
rhs = identifier |
|
| terminal |
|
| "[" , rhs , "]" |
|
| "{" , rhs , "}" |
|
| "(" , rhs , ")" |
|
| rhs , "|" , rhs |
|
| rhs , "," , rhs ; |
|
|
|
rule = lhs , "=" , rhs , ";" ; |
|
grammar = { rule } ;
|
|
|