pub enum Header {
Sniff,
Yes,
No,
UnlessNumeric,
}Expand description
Whether the first row is a header.
Variants§
Sniff
Decide with has_header, as rich --csv does; when the sniffer
cannot tell, the first row is a header.
Yes
The first row is a header.
No
There is no header; columns are named 1, 2, …
UnlessNumeric
The first row is a header unless every cell in it is a number (or
empty), as rich chart and rich profile decide. Python’s sniffer
says “no header” whenever every column is ragged in length or type,
which one empty cell can make it.
Trait Implementations§
impl Copy for Header
impl Eq for Header
impl StructuralPartialEq for Header
Auto Trait Implementations§
impl Freeze for Header
impl RefUnwindSafe for Header
impl Send for Header
impl Sync for Header
impl Unpin for Header
impl UnsafeUnpin for Header
impl UnwindSafe for Header
Blanket Implementations§
impl<T> Allocation for T
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.