Function url:: set_query

Set the query

Synopsis

            url&
set_query(core::string_view s);

Description

This sets the query to the string, which can be empty. An empty query is distinct from having no query. Reserved characters in the string are percent-escaped in the result.

Example


assert( url( "http://example.com" ).set_query( "id=42" ).query() == "id=42" );

Postconditions


this->has_query() == true && this->query() == s

Exception Safety

Strong guarantee. Calls to allocate may throw.

BNF


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

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

Specification

3.4. Query (rfc3986)

Query string (Wikipedia)