[−][src]Struct num_format::format::Environment
Type for representing formats from the LC_ALL
environment variable.
Example
use std::env; use failure; use num_format::{format::Environment, ToFormattedString}; fn main() -> Result<(), failure::Error> { // Use your system's default locale settings let format = Environment::new()?; let s = (-1000000).to_formatted_string(&format); println!("{}", &s); // Use your system's locale settings for "en_US.UTF-8" env::set_var("LC_ALL", "en_US.UTF-8"); let format = Environment::new()?; let s = (-1000000).to_formatted_string(&format); assert_eq!("-1,000,000", &s); Ok(()) }
Methods
impl Environment
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pub fn new() -> Result<Environment, Error>
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Constructs a new Environment
.
Note
- This method uses the
setlocale
andlocaleconv
API from C in order to access your system's locale settings specified by theLC_ALL
environment variable. - Because representations of infinity and NaN are not specified in locale files,
English representations from the Unicode Common Locale Data Repository (CLDR)
are used for these values, which are
"∞"
(U+221E) and"NaN"
. You can change these with calls to theset_infinity
andset_nan
methods.
Errors
Return an error if any of the calls into C fail (e.g. if localeconv
return a NULL pointer).
pub fn decimal(&self) -> char
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Returns this format's representation of decimal points.
pub fn grouping(&self) -> Grouping
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pub fn infinity(&self) -> &str
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Returns this format's representation of infinity.
pub fn minus_sign(&self) -> &str
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Returns this format's representation of minus signs.
pub fn nan(&self) -> &str
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Returns this format's representation of NaN.
pub fn separator(&self) -> Option<char>
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Returns this format's representation of separators.
pub fn set_infinity<S>(&mut self, value: S) -> Result<(), Error> where
S: AsRef<str>,
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S: AsRef<str>,
pub fn set_nan<S>(&mut self, value: S) -> Result<(), Error> where
S: AsRef<str>,
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S: AsRef<str>,
Trait Implementations
impl Format for Environment
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fn decimal(&self) -> char
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fn grouping(&self) -> Grouping
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fn infinity(&self) -> InfinityStr
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fn minus_sign(&self) -> MinusSignStr
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fn nan(&self) -> NanStr
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fn separator(&self) -> Option<char>
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impl Eq for Environment
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impl Clone for Environment
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fn clone(&self) -> Environment
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl Copy for Environment
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impl PartialEq<Environment> for Environment
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fn eq(&self, other: &Environment) -> bool
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fn ne(&self, other: &Environment) -> bool
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impl Hash for Environment
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fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Debug for Environment
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Auto Trait Implementations
impl Send for Environment
impl Sync for Environment
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = !
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,