Struct Magic 

pub struct Magic { /* private fields */ }

The content rules, in the order the database gives them.

Implementations

impl Magic

pub fn parse(bytes: &[u8]) -> Magic

Parses one magic file.

A file that does not start with the header is not this format and is ignored rather than guessed at. Anything unparseable after that ends the read: the format is length-prefixed, so once a length is misread there is no way back to a known position — and a wrong guess about where the next rule starts is worse than stopping with what was understood.

pub fn load_from(dirs: &[PathBuf]) -> Magic

Reads every magic file under the given directories. Later directories add their sections after the earlier ones, which is the order the priority sort then works over.

pub fn of_data(&self, data: &[u8]) -> Option<Match>

The best content match for these bytes.

pub fn of_file(&self, path: &Path) -> Option<Match>

The best content match for a file, reading only its first SNIFF_BYTES.

pub fn all_of_data(&self, data: &[u8]) -> Vec<Match>

Every content match, best first — mimetype --all.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for Magic

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Magic

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Magic

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Magic

impl PartialEq for Magic

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Magic