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Handle locales with 4-character-width months

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This commit is contained in:
Benjamin Sago 2017-05-17 22:15:53 +01:00
parent 5bec218878
commit ce8a2e7ce9
1 changed files with 46 additions and 24 deletions
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54
src/output/details.rs
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@ -90,6 +90,7 @@ use datetime::{LocalDateTime, DatePiece};
use datetime::TimeZone;
use zoneinfo_compiled::{CompiledData, Result as TZResult};
use unicode_width::UnicodeWidthStr;
use locale;
use users::{Users, Groups, UsersCache};
@ -161,6 +162,12 @@ pub struct Environment<U: Users+Groups> {
/// Localisation rules for formatting timestamps.
time: locale::Time,
/// Date format for printing out timestamps that are in the current year.
date_and_time: DateFormat<'static>,
/// Date format for printing out timestamps that *aren’t*.
date_and_year: DateFormat<'static>,
/// The computer's current time zone. This gets used to determine how to
/// offset files' timestamps.
tz: Option<TimeZone>,
@ -177,10 +184,32 @@ impl Default for Environment<UsersCache> {
println!("Unable to determine time zone: {}", e);
}
let numeric = locale::Numeric::load_user_locale()
.unwrap_or_else(|_| locale::Numeric::english());
let time = locale::Time::load_user_locale()
.unwrap_or_else(|_| locale::Time::english());
// Some locales use a three-character wide month name (Jan to Dec);
// others vary between three and four (1月 to 12月). We assume that
// December is the month with the maximum width, and use the width of
let december_width = UnicodeWidthStr::width(&*time.short_month_name(11));
let date_and_time = match december_width {
4 => DateFormat::parse("{2>:D} {4>:M} {2>:h}:{02>:m}").unwrap(),
_ => DateFormat::parse("{2>:D} {:M} {2>:h}:{02>:m}").unwrap(),
};
let date_and_year = match december_width {
4 => DateFormat::parse("{2>:D} {4>:M} {5>:Y}").unwrap(),
_ => DateFormat::parse("{2>:D} {:M} {5>:Y}").unwrap()
};
Environment {
current_year: LocalDateTime::now().year(),
numeric: locale::Numeric::load_user_locale().unwrap_or_else(|_| locale::Numeric::english()),
time: locale::Time::load_user_locale().unwrap_or_else(|_| locale::Time::english()),
numeric: numeric,
date_and_time: date_and_time,
date_and_year: date_and_year,
time: time,
tz: tz.ok(),
users: Mutex::new(UsersCache::new()),
}
@ -602,10 +631,10 @@ impl<'a, U: Users+Groups+'a> Table<'a, U> {
let date = tz.to_zoned(LocalDateTime::at(timestamp.0 as i64));
let datestamp = if date.year() == self.env.current_year {
DATE_AND_TIME.format(&date, &self.env.time)
self.env.date_and_time.format(&date, &self.env.time)
}
else {
DATE_AND_YEAR.format(&date, &self.env.time)
self.env.date_and_year.format(&date, &self.env.time)
};
TextCell::paint(self.opts.colours.date, datestamp)
@ -614,10 +643,10 @@ impl<'a, U: Users+Groups+'a> Table<'a, U> {
let date = LocalDateTime::at(timestamp.0 as i64);
let datestamp = if date.year() == self.env.current_year {
DATE_AND_TIME.format(&date, &self.env.time)
self.env.date_and_time.format(&date, &self.env.time)
}
else {
DATE_AND_YEAR.format(&date, &self.env.time)
self.env.date_and_year.format(&date, &self.env.time)
};
TextCell::paint(self.opts.colours.date, datestamp)
@ -736,15 +765,6 @@ impl<'a, U: Users+Groups+'a> Table<'a, U> {
}
lazy_static! {
static ref DATE_AND_TIME: DateFormat<'static> =
DateFormat::parse("{2>:D} {:M} {2>:h}:{02>:m}").unwrap();
static ref DATE_AND_YEAR: DateFormat<'static> =
DateFormat::parse("{2>:D} {:M} {5>:Y}").unwrap();
}
#[cfg(test)]
pub mod test {
pub use super::{Table, Environment, Details};
@ -757,7 +777,7 @@ pub mod test {
pub use users::{User, Group, uid_t, gid_t};
pub use users::mock::MockUsers;
pub use users::os::unix::{UserExt, GroupExt};
pub use datetime::fmt::DateFormat;
pub use ansi_term::Style;
pub use ansi_term::Colour::*;
@ -771,6 +791,8 @@ pub mod test {
current_year: 1234,
numeric: locale::Numeric::english(),
time: locale::Time::english(),
date_and_time: DateFormat::parse("{2>:D} {4>:M} {2>:h}:{02>:m}").unwrap(),
date_and_year: DateFormat::parse("{2>:D} {:M} {5>:Y}").unwrap(),
tz: None,
users: Mutex::new(MockUsers::with_current_uid(0)),
}