Cleanup.

src/parser/parser_context.rs

@@ -4,13 +4,13 @@ use nom::IResult;
 
 use super::error::CustomError;
 use super::error::MyError;
+use super::error::Res;
 use super::list::List;
 use super::list::Node;
 use super::token::Token;
 use super::Context;
 
-type Matcher =
-    dyn for<'r, 's> Fn(Context<'r, 's>, &'s str) -> IResult<&'s str, &'s str, CustomError<&'s str>>;
+type Matcher = dyn for<'r, 's> Fn(Context<'r, 's>, &'s str) -> Res<&'s str, &'s str>;
 
 #[derive(Debug, Clone)]
 pub struct ContextTree<'r, 's> {