boost::urls::url_view_base::query

Return the query

Synopsis

Declared in <boost/url/url_view_base.hpp>

template<string_token::StringToken StringToken = string_token::return_string>
StringToken::result_type
query(StringToken&& token = {}) const;

Description

If this contains a query, it is returned as a string (which may be empty). Otherwise, an empty string is returned. Any percent-escapes in the string are decoded first.

Literal plus signs remain unchanged by default to match RFC 3986. To treat '+' as a space, supply decoding options with space_as_plus = true when calling this function.

Example


assert( url_view( "/sql?id=42&name=jane%2Ddoe&page+size=20" ).query() == "id=42&name=jane-doe&page size=20" );

Complexity

Linear in this->query().size().

Exception Safety

Calls to allocate may throw.

BNF


query           = *( pchar / "/" / "?" )

query-param     = key [ "=" value ]
query-params    = [ query-param ] *( "&" query-param )

Specification

Return Value

The query as a string.

Parameters

Name	Description
token	A token to use for the returned string.