# url::Position - Rust
API documentation for the Rust `Position` enum in crate `url`.
Keywords: rust, rustlang, rust-lang, Position

# Enum url::Position [−] [src]

    pub enum Position {
        BeforeScheme,
        AfterScheme,
        BeforeUsername,
        AfterUsername,
        BeforePassword,
        AfterPassword,
        BeforeHost,
        AfterHost,
        BeforePort,
        AfterPort,
        BeforePath,
        AfterPath,
        BeforeQuery,
        AfterQuery,
        BeforeFragment,
        AfterFragment,
    }

Indicates a position within a URL based on its components.

A range of positions can be used for slicing `Url`:

    let serialization: &str = &some_url[..];
    let serialization_without_fragment: &str = &some_url[..Position::AfterQuery];
    let authority: &str = &some_url[Position::BeforeUsername..Position::AfterPort];
    let data_url_payload: &str = &some_url[Position::BeforePath..Position::AfterQuery];
    let scheme_relative: &str = &some_url[Position::BeforeUsername..];

In a pseudo-grammar (where `[`…`]?` makes a sub-sequence optional), URL components and delimiters that separate them are:

    url =
        scheme ":"
        [ "//" [ username [ ":" password ]? "@" ]? host [ ":" port ]? ]?
        path [ "?" query ]? [ "#" fragment ]?

When a given component is not present, its "before" and "after" position are the same (so that `&some_url[BeforeFoo..AfterFoo]` is the empty string) and component ordering is preserved (so that a missing query "is between" a path and a fragment).

The end of a component and the start of the next are either the same or separate by a delimiter. (Not that the initial `/` of a path is considered part of the path here, not a delimiter.) For example, `&url[..BeforeFragment]` would include a `#` delimiter (if present in `url`), so `&url[..AfterQuery]` might be desired instead.

`BeforeScheme` and `AfterFragment` are always the start and end of the entire URL, so `&url[BeforeScheme..X]` is the same as `&url[..X]` and `&url[X..AfterFragment]` is the same as `&url[X..]`.

## Variants

`BeforeScheme`
`AfterScheme`
`BeforeUsername`
`AfterUsername`
`BeforePassword`
`AfterPassword`
`BeforeHost`
`AfterHost`
`BeforePort`
`AfterPort`
`BeforePath`
`AfterPath`
`BeforeQuery`
`AfterQuery`
`BeforeFragment`
`AfterFragment`

## Trait Implementations

### `impl Clone for Position` [src]

#### `fn clone(&self) -> Position` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl Copy for Position` [src]

### `impl Debug for Position` [src]

#### `fn fmt(&self, f: &mut Formatter<'_>) -> Result` [src]

Formats the value using the given formatter. Read more

## Auto Trait Implementations

### `impl RefUnwindSafe for Position` [src]

### `impl Send for Position` [src]

### `impl Sync for Position` [src]

### `impl Unpin for Position` [src]

### `impl UnwindSafe for Position` [src]

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &T` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut T` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> ToOwned for T where
T: Clone,` [src]

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

Creates owned data from borrowed data, usually by cloning. Read more

#### `pub fn clone_into(&self, target: &mut T)` [src]

🔬 This is a nightly-only experimental API. (`toowned_clone_into`)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.