avoid -Wshadow warning in clang

Author: Hana Dusíková

include/ctll/parser.hpp

@@ -130,15 +130,15 @@ template <typename Grammar, const auto & input, typename ActionSelector = empty_
 	// and push string without the character (quick LL(1))
 	template <size_t Pos, auto V, typename... Content, typename Stack, typename Subject>
 	static constexpr auto move(push<term<V>, Content...>, term<V>, Stack stack, Subject) noexcept {
-		constexpr auto _input = input;
-		return typename parser<Grammar, _input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
+		constexpr auto local_input = input;
+		return typename parser<Grammar, local_input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
 	}
 	// if rule is string with any character at the beginning (compatible with current term<T>) => move to next character 
 	// and push string without the character (quick LL(1))
 	template <size_t Pos, auto V, typename... Content, auto T, typename Stack, typename Subject>
 	static constexpr auto move(push<anything, Content...>, term<T>, Stack stack, Subject) noexcept {
-		constexpr auto _input = input;
-		return typename parser<Grammar, _input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
+		constexpr auto local_input = input;
+		return typename parser<Grammar, local_input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
 	}
 	// decide if we need to take action or move
 	template <size_t Pos, typename Stack, typename Subject> static constexpr auto decide(Stack previous_stack, Subject previous_subject) noexcept {

single-header/ctre-unicode.hpp

@@ -842,15 +842,15 @@ template <typename Grammar, const auto & input, typename ActionSelector = empty_
 	// and push string without the character (quick LL(1))
 	template <size_t Pos, auto V, typename... Content, typename Stack, typename Subject>
 	static constexpr auto move(push<term<V>, Content...>, term<V>, Stack stack, Subject) noexcept {
-		constexpr auto _input = input;
-		return typename parser<Grammar, _input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
+		constexpr auto local_input = input;
+		return typename parser<Grammar, local_input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
 	}
 	// if rule is string with any character at the beginning (compatible with current term<T>) => move to next character 
 	// and push string without the character (quick LL(1))
 	template <size_t Pos, auto V, typename... Content, auto T, typename Stack, typename Subject>
 	static constexpr auto move(push<anything, Content...>, term<T>, Stack stack, Subject) noexcept {
-		constexpr auto _input = input;
-		return typename parser<Grammar, _input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
+		constexpr auto local_input = input;
+		return typename parser<Grammar, local_input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
 	}
 	// decide if we need to take action or move
 	template <size_t Pos, typename Stack, typename Subject> static constexpr auto decide(Stack previous_stack, Subject previous_subject) noexcept {

single-header/ctre.hpp

@@ -839,15 +839,15 @@ template <typename Grammar, const auto & input, typename ActionSelector = empty_
 	// and push string without the character (quick LL(1))
 	template <size_t Pos, auto V, typename... Content, typename Stack, typename Subject>
 	static constexpr auto move(push<term<V>, Content...>, term<V>, Stack stack, Subject) noexcept {
-		constexpr auto _input = input;
-		return typename parser<Grammar, _input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
+		constexpr auto local_input = input;
+		return typename parser<Grammar, local_input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
 	}
 	// if rule is string with any character at the beginning (compatible with current term<T>) => move to next character 
 	// and push string without the character (quick LL(1))
 	template <size_t Pos, auto V, typename... Content, auto T, typename Stack, typename Subject>
 	static constexpr auto move(push<anything, Content...>, term<T>, Stack stack, Subject) noexcept {
-		constexpr auto _input = input;
-		return typename parser<Grammar, _input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
+		constexpr auto local_input = input;
+		return typename parser<Grammar, local_input, ActionSelector, IgnoreUnknownActions>::template results<Pos+1, decltype(push_front(list<Content...>(), stack)), Subject, decision::undecided>();
 	}
 	// decide if we need to take action or move
 	template <size_t Pos, typename Stack, typename Subject> static constexpr auto decide(Stack previous_stack, Subject previous_subject) noexcept {