You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
13 lines
394 B
Racket
13 lines
394 B
Racket
#lang brag
|
|
b-program : [b-line] (/NEWLINE [b-line])*
|
|
b-line : b-line-num [b-statement] (/":" [b-statement])* [b-rem]
|
|
@b-line-num : INTEGER
|
|
@b-statement : b-end | b-print | b-goto
|
|
b-rem : REM
|
|
b-end : /"end"
|
|
b-print : /"print" [b-printable] (/";" [b-printable])*
|
|
@b-printable : STRING | b-expr
|
|
b-goto : /"goto" b-expr
|
|
b-expr : b-sum
|
|
b-sum : b-number (/"+" b-number)*
|
|
@b-number : INTEGER | DECIMAL |