boost::http_proto::tchars

The set of token characters

Synopsis

Declared in header <boost/http_proto/rfc/token_rule.hpp>

constexpr
grammar::lut_chars const tchars = "!#$%&'*+-.^_`|~"
    "0123456789"
    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    "abcdefghijklmnopqrstuvwxyz";

Description

BNF

tchar       = "!" / "#" / "$" / "%" / "&" / "'" / "*"
            / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
            / DIGIT / ALPHA
            ; any VCHAR, except delimiters

VCHAR       =  0x21-0x7E

Specification