KarrLab/wc_rules

%import common.CNAME
%import common.WS_INLINE
%import common.NUMBER
%ignore WS_INLINE
%import common.ESCAPED_STRING
%import common.NEWLINE

COMMENT: /#.*/
%ignore COMMENT
%ignore NEWLINE

?literal.1: NUMBER -> number | "True"-> true | "False" -> false | ESCAPED_STRING -> string
?atom: literal | function_call |  "(" expression ")" 

variable: CNAME
attribute: CNAME

arg: (expression|boolean_expression)
kw: CNAME
kwarg: kw "=" arg
args: arg ("," arg )*
kwargs: kwarg ("," kwarg)*

function_name: CNAME
subvariable: CNAME
function_call: variable ["." subvariable] "." function_name  "(" [args|kwargs] ")"
    | variable ["." subvariable] "." attribute
    | function_name "(" [args|kwargs] ")"
    | variable 
    
?sum: term (add_op term)*
?term: factor (mul_op factor)* 
?factor: factor_op factor | atom

?factor_op: "+" -> noflip | "-" -> flipsign
?add_op: "+" -> add | "-" -> subtract
?mul_op: "*" -> multiply | "/" -> divide    

?expression: sum

boolean_expression: expression bool_op expression

?bool_op: ">=" -> geq | "<=" -> leq | ">" -> ge | "<" -> le | "==" -> eq | "!=" -> ne

assignment: declared_variable "=" (expression|boolean_expression)
declared_variable: CNAME

?start: (assignment|boolean_expression)