Non-owning decoded query parameter view
This read-only range interprets the query string of a URL as bidirectional key/value pairs with percent-decoding applied on access. It merely references the original character buffer; callers must keep that buffer alive while the view is used.
url_view u( "?first=John&last=Doe" );
params_view p = u.params();
Strings retrieved from the iterators are automatically percent-decoded.
Changes to the underlying character buffer can invalidate iterators which reference it.
| Name | Description |
|---|---|
params_base | Decoded query parameter helper base |
| Name | Description |
|---|---|
iterator | A Bidirectional iterator to a query parameter |
| Name | Description |
|---|---|
const_iterator | A Bidirectional iterator to a query parameter |
const_reference | The reference type |
difference_type | A signed integer type used to represent differences. |
reference | The reference type |
size_type | An unsigned integer type to represent sizes. |
value_type | The value type |
| Name | Description |
|---|---|
params_view [constructor] | Constructor |
operator= | Assignment |
begin | Return an iterator to the beginning |
buffer | Return the referenced character buffer. |
contains | Return true if a matching key exists |
count | Return the number of matching keys |
empty | Return true if there are no params |
end | Return an iterator to the end |
find | Find a matching key |
find_last | Find a matching key |
get_or | Return the value for a key or a fallback |
size | Return the number of params |
| Name | Description |
|---|---|
max_size | Return the maximum number of characters possible |
| Name | Description |
|---|---|
boost::urls::params_ref | Mutable decoded query parameter proxy |
boost::urls::params_encoded_view | Non-owning encoded query parameter view |
boost::urls::url_view_base | Common functionality for containers |