Struct Engine 

pub struct Engine { /* private fields */ }

Dispatches read calls to the registered Reader for the file’s extension. Construct with Engine::new for an empty engine, or Engine::with_defaults for the readers matching enabled feature flags.

Implementations

impl Engine

pub fn new() -> Self

New engine with no readers registered.

pub fn with_defaults() -> Self

New engine with the default readers for enabled feature flags. With both calamine and csv features on (the default), this engine handles XLSX/XLS/XLSB/XLSM/ODS plus CSV/TSV out of the box.

pub fn register(&mut self, reader: Box<dyn Reader>) -> &mut Self

Register a backend. Multiple backends can claim the same extension; the first registered wins on dispatch (so you can override defaults by registering your own reader first).

pub fn len(&self) -> usize

Returns the number of registered readers.

pub fn is_empty(&self) -> bool

Returns true when no readers are registered.

pub fn read(&self, path: &Path, options: &ReadOptions) -> Result<Table>

Read path as a Table, dispatching by file extension.

Trait Implementations

impl Default for Engine

fn default() -> Self

Returns the “default value” for a type.