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Sniffer

Struct Sniffer 

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pub struct Sniffer { /* private fields */ }
Expand description

CSV dialect sniffer using the Table Uniformity Method.

§Example

use csv_nose::{Sniffer, SampleSize};

let mut sniffer = Sniffer::new();
sniffer.sample_size(SampleSize::Records(100));

let metadata = sniffer.sniff_path("data.csv").unwrap();
println!("Delimiter: {}", metadata.dialect.delimiter as char);
println!("Has header: {}", metadata.dialect.header.has_header_row);

Implementations§

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impl Sniffer

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pub const fn new() -> Self

Create a new Sniffer with default settings.

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pub fn sample_size(&mut self, sample_size: SampleSize) -> &mut Self

Set the sample size for sniffing.

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pub fn date_preference(&mut self, date_preference: DatePreference) -> &mut Self

Set the date preference for ambiguous date parsing.

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pub fn delimiter(&mut self, delimiter: u8) -> &mut Self

Force a specific delimiter (skip delimiter detection).

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pub fn quote(&mut self, quote: Quote) -> &mut Self

Force a specific quote character.

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pub fn sniff_path<P: AsRef<Path>>(&mut self, path: P) -> Result<Metadata>

Sniff a CSV file at the given path.

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pub fn sniff_reader<R: Read + Seek>(&mut self, reader: R) -> Result<Metadata>

Sniff CSV data from a reader.

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pub fn sniff_bytes(&self, data: &[u8]) -> Result<Metadata>

Sniff CSV data from bytes.

Trait Implementations§

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impl Clone for Sniffer

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fn clone(&self) -> Sniffer

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Sniffer

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

Formats the value using the given formatter. Read more
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impl Default for Sniffer

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.