:relfileprefix: ../../
[#5B9667126E56AF668D5129CCC2504719FA911E06]

= sub_delim_chars

pass:v,q[The sub-delims character set]


== Synopsis

Declared in header `</boost/url/rfc/sub_delim_chars.hpp#L45[boost/url/rfc/sub_delim_chars.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
constexpr
const xref:boost/urls/grammar.adoc[grammar]::xref:boost/urls/grammar/lut_chars.adoc[lut_chars] sub_delim_chars;
----

== Description


=== Example
pass:v,q[Character sets are used with rules and] pass:v,q[the functions]
xref:boost/urls/grammar/find_if.adoc[grammar::find_if]
pass:v,q[and]
xref:boost/urls/grammar/find_if_not.adoc[grammar::find_if_not.]
[,cpp]
----
system::result< decode_view > = grammar::parse( "Program%20Files", pct_encoded_rule( sub_delim_chars ) );
----

=== BNF
[,cpp]
----
sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
              / "*" / "+" / "," / ";" / "="
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-2.2[2.2. Reserved Characters (rfc3986)]