Crate strval

strval is collection of types that keep values that can all be set from a string value. It can be thought of as a generalized version of the FromStr trait.

use strval::{
  StrVal, Bool, BinU64Count, BinU64Size, DecU64Count, DecU64Size
};

let v: Bool = "true".parse().unwrap();
assert!(v.get());
assert_eq!(v.val_str(), Some(String::from("true")));

// "count" variant is assumed to not count bytes
let v: BinU64Count = "64k".parse().unwrap();
assert_eq!(v.get(), 65536);
assert_eq!(v.val_str(), Some(String::from("65536")));

// "size" variant is assumed to be a byte size
let v: BinU64Size = "64kb".parse().unwrap();
assert_eq!(v.get(), 65536);
assert_eq!(v.val_str(), Some(String::from("65536")));

// "count" variant is assumed to not count bytes
let v: DecU64Count = "64k".parse().unwrap();
assert_eq!(v.get(), 64000);
assert_eq!(v.val_str(), Some(String::from("64000")));

// "size" variant is assumed to be a byte size
let v: DecU64Size = "64kb".parse().unwrap();
assert_eq!(v.get(), 64000);
assert_eq!(v.val_str(), Some(String::from("64000")));

Features

Feature	Function
rusqlite	Implement ToSql/FromSql support for value types.

Structs

AnyU64

Accept any u64.

AnyUsize

Accept any usize.

BinU64Count

A u64 value that supports suffixes, like 1k, 2.5k, etc.

BinU64Size

A u64 value that supports suffixes, like 1kb, 2.5kb, etc.

BinUsizeCount

A usize value that supports suffixes, like 1k, 2.5k, etc.

BinUsizeSize

A usize value that supports suffixes, like 1kb, 2.5kb, etc.

Bool

A boolean value.

DecU64Count

A u64 value that supports suffixes, like 1k, 2.5k, etc.

DecU64Size

A u64 value that supports suffixes, like 1kb, 2.5kb, etc.

DecUsizeCount

A usize value that supports suffixes, like 1k, 2.5k, etc.

DecUsizeSize

A usize value that supports suffixes, like 1kb, 2.5kb, etc.

Dur

A string representation of a duration.

Percent

Specify a percentage, converted to a f32 betwwen 0.0 and 1.0.

RelAbsLim

A relative or absolute limit.

Select

Select one element from a set.

Str

A plain text string.

Enums

Error

Crate-specific errors.

Traits

Controller

Define a default (string) value and provide a value validator.

StrVal

Traits for values that can be set from strings.