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|
location:
| LOCATION_START EOL*
line_statement*
LOCATION_END EOL*
EOF
line_statement:
| COMMENT EOL+ // A comment
| COLUMN IDENT EOL* // A location
| instruction, line_sep
| inline_action line_sep
| ACT expression COLUMN EOL+ // ACT … END ACT
line_statement*
END ACT? // Yes you can have END or END ACT
line_sep
| IF expression COLUMN EOL+ // IF … END IF
line_statement*
elif*
else
END IF? // Yes you can have END or END IF
line_sep
elif:
| ELIF
expression COLUMN EOL+
line_statement*
else:
| ELSE EOL+
line_statement*
|
line_sep:
| EOL+
| AMPERSAND+ EOL*
instruction:
| expression
| let_assignation
| keyword argument(expression)
keyword:
| STAR KEYWORD // A keyword starting with *
| KEYWORD
let_assignation:
| assignation
variable
assignation_operator
expression
assignation:
|
| LET
| SET
assignation_operator:
| EQUAL
| INCR // +=
| DECR // -=
inline_action:
| ACT expression COLUMN // There is a recursive code here
| IF expression COLUMN // Because ACT: can contains an IF: etc
(ELSE, instruction)? // complicated to flatten here.
expression:
| delimited(l_paren, expression, r_paren)
| unary_operator expression
| expression binary_operator expression
| literal
| integer
| variable
| function argument(expression)
unary_operator:
| OBJ
| LOC
| NO
| MINUS
| PLUS
binary_operator:
| EQUAL
| LT GT // Different
| EXCLAMATION // Neg, not a comment here
| PLUS
| MINUS
| STAR // Not the first char of keyword here
| DIV
| MOD
| GT
| LT
| GT EQUAL
| LT EQUAL
| EQUAL GT // Alternative syntax
| EQUAL LT // Alternative syntax
| AND
| OR
|
