The set of visible characters

Synopsis

Declared in <boost/url/grammar/vchars.hpp>

constexpr /* implementation-defined */ vchars = {};

Example

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( vchars ) );

BNF

VCHAR       = 0x21-0x7E
            ; visible (printing) characters

Specification

See Also

find_if, find_if_not, parse, token_rule.

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