Boost C++ Libraries Home Libraries People FAQ More

PrevUpHomeNext

grammar::alpha_chars

The set of all letters.

Synopsis

Defined in header <boost/url/grammar/alpha_chars.hpp>

constexpr implementation-defined alpha_chars;
Example

Character sets are used with rules and the functions find_if and find_if_not.

system::result< core::string_view > rv = [link url.ref.boost__urls__grammar__parse `parse`]( "JohnDoe" , [link url.ref.boost__urls__grammar__token_rule `token_rule`]( [link url.ref.boost__urls__grammar__alpha_chars `alpha_chars`] ) );
BNF
ALPHA       = %x41-5A / %x61-7A
            ; A-Z / a-z
Specification
See Also

find_if, find_if_not, parse, token_rule.

Convenience header <boost/url/grammar.hpp>


PrevUpHomeNext