Struct Selector 

pub struct Selector { /* private fields */ }

A parsed selector that can be applied on CSV headers to create a crate::Selection.

Implementations

impl Selector

pub fn is_empty(&self) -> bool

pub fn invert(&mut self)

pub fn select<'a, H>( &self, first_record: H, use_names: bool, ) -> Result<Selection, Error>

where H: IntoIterator<Item = &'a [u8]>,

pub fn select_one<'a, H>( &self, first_record: H, use_names: bool, ) -> Result<usize, Error>

where H: IntoIterator<Item = &'a [u8]>,

pub fn retain_known<'a, H>(&mut self, headers: H) -> Vec<usize>

where H: IntoIterator<Item = &'a [u8]>,

Trait Implementations

impl Clone for Selector

fn clone(&self) -> Selector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Selector

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

Formats the value using the given formatter.

impl Default for Selector

fn default() -> Self

Returns the “default value” for a type.

impl FromStr for Selector

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl TryFrom<String> for Selector

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: String) -> Result<Self, Self::Error>

Performs the conversion.