boost::urls::grammar::alpha_chars
The set of all letters
Synopsis
Declared in header <boost/url/grammar/alpha_chars.hpp>
constexpr
implementation-defined alpha_chars = alpha_chars{};
Character sets are used with rules and the
functions find_if and find_if_not .
system::result< core::string_view > rv = parse( "JohnDoe", token_rule( alpha_chars ) );
ALPHA = %x41-5A / %x61-7A
; A-Z / a-z
See Also
find_if , find_if_not , parse , token_rule .