28 lines
462 B
BNF
28 lines
462 B
BNF
{%
|
|
|
|
Examples:
|
|
|
|
```
|
|
front 3 left 10 y 77 x 30 back 99
|
|
```
|
|
|
|
%}
|
|
|
|
<axes> ::= <axis_part> *
|
|
|
|
<axes_part> ::= <axis_name> <number>
|
|
|
|
<axis_name> ::= <axis_name_absolute>
|
|
| <axis_name_relative>
|
|
|
|
<axis_name_absolute> ::= <axis_letters_absolute>
|
|
| "-" <axis_letters_absolute>
|
|
|
|
<axis_name_relative> ::= front | back | left | right | up | down | h | v | "?"
|
|
|
|
<axis_letters_absolute> ::= x | y | z
|
|
|
|
<number> ::= <digit> *
|
|
|
|
<digit> ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 0
|