rust_jvm::p_named!

macro_rules! p_named {
    ($name:ident( $i:ty ) -> $o:ty, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident<$i:ty,$o:ty,$e:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident<$i:ty,$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident<$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident( $i:ty ) -> $o:ty, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident<$i:ty,$o:ty,$e:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident<$i:ty,$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident<$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident, $submac:ident!( $($args:tt)* )) => { ... };
}

Declares a parser (with a body of type std::result::Result<nom::IResult, nom::Err<I, E>>) that can be controlled for backtracking by using c! and cut!. The return type is std::result::Result<nom::IResult, nom::Err<I, E>>. If the parser returns std::result::Result::Ok, then backtracking occurs. If the parser returns std::result::Result::Err, then backtracking does not occur.