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Params

Struct Params 

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pub struct Params<'a> { /* private fields */ }
Expand description

Validated parameters. Iterating them cannot fail.

Debug prints the parameter names only: values can be secrets.

§Examples

use parse_net::{param, Limits};

let (p, used) = param::parse(b";q=1;level=\"2\"", &Limits::DEFAULT)?;
assert_eq!((p.len(), used), (2, 14));
assert!(p.get("level").is_some_and(|v| v.eq_bytes(b"2")));

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impl<'a> Params<'a>

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pub fn iter(&self) -> ParamIter<'a> ⓘ

Every parameter, in order (with First or Last, duplicates included).

§Examples
use parse_net::{param, Limits};

let (p, _) = param::parse(b";a=1; B=2", &Limits::DEFAULT)?;
let names: Vec<&[u8]> = p.iter().map(|p| p.name).collect();
assert_eq!(names, [&b"a"[..], b"B"]);
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pub fn get(&self, name: &str) -> Option<Word<'a>>

The value of the parameter named name (ASCII case-insensitive): the first match, or the last under DuplicatePolicy::Last.

§Examples
use parse_net::{param, Limits};

let (p, _) = param::parse(b";charset=UTF-8", &Limits::DEFAULT)?;
assert!(p.get("CHARSET").is_some_and(|v| v.eq_bytes(b"UTF-8")));
assert!(p.get("q").is_none());
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pub const fn len(&self) -> usize

The number of parameters.

§Examples
use parse_net::{param, Limits};

assert_eq!(param::parse(b";a=1;;b=2;", &Limits::DEFAULT)?.0.len(), 2);
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pub const fn is_empty(&self) -> bool

Whether there are no parameters.

§Examples
use parse_net::{param, Limits};

assert!(param::parse(b"", &Limits::DEFAULT)?.0.is_empty());
assert!(!param::parse(b";a=1", &Limits::DEFAULT)?.0.is_empty());
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pub const fn raw(&self) -> &'a [u8] ⓘ

The validated text, from the first ; to the end of the last parameter.

§Examples
use parse_net::{param, Limits};

let (p, _) = param::parse(b";a=1 ;b=2 , next", &Limits::DEFAULT)?;
assert_eq!(p.raw(), b";a=1 ;b=2");

Trait Implementations§

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impl<'a> Clone for Params<'a>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<'a> Copy for Params<'a>

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impl Debug for Params<'_>

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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<'a> Eq for Params<'a>

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impl<'a> Hash for Params<'a>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<'a> PartialEq for Params<'a>

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl<'a> StructuralPartialEq for Params<'a>

Auto Trait Implementations§

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impl<'a> Freeze for Params<'a>

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impl<'a> RefUnwindSafe for Params<'a>

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impl<'a> Send for Params<'a>

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impl<'a> Sync for Params<'a>

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impl<'a> Unpin for Params<'a>

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impl<'a> UnsafeUnpin for Params<'a>

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impl<'a> UnwindSafe for Params<'a>

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 = !

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

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.