:relfileprefix: ../../../
[#boost-urls-grammar-token_rule]

= xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/grammar.adoc[pass:[grammar]]::token_rule



== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/grammar/token_rule.hpp#L92[boost/url/grammar/token_rule.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
template<class CharSet>
constexpr
xref:boost/urls/grammar/token_rule_t.adoc[token_rule_t]<CharSet>
token_rule(CharSet const& cs) noexcept;
----