Use pub in rustpeg code

src/rio/ntriples/ntriples_grammar.rustpeg

@@ -9,8 +9,7 @@ use std::collections::BTreeMap;
 #![arguments(bnodes_map: &mut BTreeMap<String, BlankNode>)]
 
 //[2]
-#[pub]
-triple -> Option<Triple> =
+pub triple -> Option<Triple> =
     _ s:subject _ p:predicate _ o:object _ "." _ comment? EOL? { Some(Triple::new(s, p, o)) } /
     _ comment? EOL? { None }
 

src/rio/turtle/turtle_grammar.rustpeg

@@ -8,8 +8,7 @@ use std::iter;
 #![arguments(state: &mut ParserState, buffer: &mut Vec<Triple>)]
 
 //[1]
-#[pub]
-turtleDoc -> () = _ (statement _)*
+pub turtleDoc -> () = _ (statement _)*
 
 //[2]
 statement -> () = directive / triples "."

src/sparql/sparql_grammar.rustpeg

@@ -10,8 +10,7 @@ use std::str::FromStr;
 
 
 //[1]
-#[pub]
-QueryUnit -> Query = Query
+pub QueryUnit -> Query = Query
 
 //[2]
 Query -> Query = _ Prologue _ q:(SelectQuery / ConstructQuery / DescribeQuery / AskQuery) _ { //TODO: ValuesClause