| Name | Description |
|---|---|
params_base | Common functionality for query parameter containers |
| Name | Description |
|---|---|
iterator | A Bidirectional iterator to a query parameter |
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_ref [constructor] | Constructor |
operator= | Assignment |
append | Append elements |
assign | Assign elements |
begin | Return an iterator to the beginning |
buffer | Return the referenced character buffer. |
clear | Clear the contents of the container |
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 |
erase | Erase elements |
find | Find a matching key |
find_last | Find a matching key |
insert | Insert elements |
replace | Replace elements |
set | Set a value |
size | Return the number of params |
unset | Remove the value on an element |
url | Return the referenced url |
operator params_view | Conversion |
| Name | Description |
|---|---|
max_size | Return the maximum number of characters possible |
| Name | Description |
|---|---|
url_base |
Common functionality for containers |
Objects of this type are used to interpret the query parameters as a bidirectional view of key/value pairs. The view does not retain ownership of the elements and instead references the original url. The caller is responsible for ensuring that the lifetime of the referenced url extends until it is no longer referenced. The view is modifiable; calling non-const members causes changes to the referenced url.
Percent escapes in strings returned when dereferencing iterators are automatically decoded. Reserved characters in strings supplied to modifier functions are automatically percent-escaped.
url u( "?first=John&last=Doe" );
params_ref p = u.params();
Changes to the underlying character buffer can invalidate iterators which reference it. Modifications made through the container invalidate some or all iterators:
append : Only end().assign, clear, operator= : All elements.erase : Erased elements and all elements after (including end()).insert : All elements at or after the insertion point (including end()).replace, set : Modified elements and all elements after (including end()).