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use std::str::FromStr;
// Based on the Modelica 3.3r1 Spec
grammar;
//// B.1 Lexical Convetions
//digit: = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
//q_ident = "’" ( q_char | s_escape ) { q_char | s_escape } "’"
//nondigit = "_" | letters "a" to "z" | letters "A" to "Z"
//s_char = any member of the Unicode character set (http://www.unicode.org; see Section 13.2.2 for storing as UTF-8 on files) except double-quote """, and backslash "\"
//q_char = nondigit | digit | "!" | "#" | "$" | "%" | "&" | "(" | ")" | "*" | "+" | "," | "-" | "." | "/" | ":" | ";" | "<" | ">" | "=" | "?" | "@" | "[" | "]" | "^" | "{" | "}" | "|" | "~" | " "
//s_escape = "\’" | "\"" | "\?" | "\\" | "\a" | "\b" | "\f" | "\n" | "\r" | "\t" | "\v"
//
//ident = nondigit { digit | nondigit } | q_ident
//string = """ { s_char | s_escape } """
//unsigned_integer = digit { digit }
//unsigned_number = unsigned_integer [ "." [ unsigned_integer ] ] [ ( "e" | "E" ) [ "+" | "-" ] unsigned_integer ]
IDENT: () = {
r"[a-zA-Z_][a-zA-Z_0-9]*",
// TODO: quoted identifier: "’" ... "’"
};
STRING: () = {
//"\"" r"[^\"^\\]*" "\"",
"\"" r"[^\\]*" "\"", // XXX: not \ and not "
};
UNSIGNED_INTEGER: () = {
r"\d+",
};
UNSIGNED_NUMBER: () = {
UNSIGNED_INTEGER,
r"\d+\.?\d*([eE][-+]?\d+)?",
};
//// B.2 Grammar
//// B.2.1
//stored_definition:
// [ within [ name ] ";" ]
// { [ final ] class_definition ";" }
//// B.2.2 Class Definition
//// B.2.7 Expressions
expression: () = {
simple_expression,
if expression then expression { elseif expression then expression } else expression
};
simple_expression: () = {
logical_expression [ ":" logical_expression [ ":" logical_expression ] ]
};
logical_expression: () = {
logical_term { or logical_term }
};
logical_term: () = {
logical_factor { and logical_factor }
};
logical_factor: () = {
[ not ] relation
};
relation: () = {
arithmetic_expression [ rel_op arithmetic_expression ]
};
rel_op: () = {
"<", "<=", ">", ">=", "==", "<>"
};
arithmetic_expression: () = {
[ add_op ] term { add_op term }
};
add_op: () = {
"+", "-", ".+", ".-"
};
term: () = {
factor { mul_op factor }
};
mul_op: () = {
"*", "/", ".*", "./"
};
factor: () = {
primary [ ("^" | ".^") primary ]
};
primary: () = {
UNSIGNED_NUMBER,
STRING,
false,
true,
( name | der | initial ) function_call_args,
component_reference,
"(" output_expression_list ")",
"[" expression_list { ";" expression_list } "]",
"{" function_arguments "}",
end,
};
name: () = {
[ "." ] IDENT { "." IDENT }
};
component_reference: () = {
[ "." ] IDENT [ array_subscripts ] { "." IDENT [ array_subscripts ] }
};
function_call_args: () = {
"(" [ function_arguments ] ")",
function_arguments,
function_argument [ "," function_arguments | for for_indices ],
named_arguments,
};
named_arguments: () = {
named_argument [ "," named_arguments ]
};
named_argument:
IDENT "=" function_argument
};
function_argument: () = {
function name "(" [ named_arguments ] ")" | expression
};
output_expression_list:
[ expression ] { "," [ expression ] }
expression_list: () = {
expression { "," expression }
};
array_subscripts: () = {
"[" subscript { "," subscript } "]"
};
subscript: () = {
":" | expression
};
comment: () = {
string_comment [ annotation ]
};
string_comment: () = {
[ STRING { "+" STRING } ]
};
annotation: () = {
annotation class_modification
};
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