A template for implementation of clause that checks absence of some entity in the input stream.
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template<typename Subitems_Tuple>
class restinio::easy_parser::impl::not_clause_t< Subitems_Tuple >
A template for implementation of clause that checks absence of some entity in the input stream.
This template implements rules like:
T := !A B
where not_clause_t is related to the part !A
only.
- Note
- The empty temporary object of Target_Type passed to call of
try_process
of subitems.
-
This clause always returns the current position in the input stream back at the position where this clause was called.
- Template Parameters
-
Subitems_Tuple | the type of std::tuple with items for every clause to be checked. |
- Since
- v.0.6.1
Definition at line 1779 of file easy_parser.hpp.