Function parse_recur_functions 

pub fn parse_recur_functions(
    input: &str,
) -> Result<HashMap<String, RecurFunction>, RecurFunctionParseError>

Parses recursive functions input into HashMap<String, RecurFunction> where key is identifier and value is its recursive function.

Arguments

• input - string which includes recursive functions.

Returns

HashMap<String, RecurFunction> where key is identifier and value is its recursive function or RecurFunctionParseError wraped into Result.