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various doc cleanups; added `FromStr` impl for `DateTime<Local>`. 

also made a small script for auto-generating `README.md` out of
the main doc comment from `src/lib.rs`.
This commit is contained in:
Kang Seonghoon 2015-02-19 02:21:52 +09:00
parent 664c4d0191
commit c1d0b0279f
4 changed files with 56 additions and 13 deletions
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20
Makefile
View File

@ -9,3 +9,23 @@ authors:
echo >> AUTHORS.txt
git log --format='%aN <%aE>' | grep -v 'Kang Seonghoon' | sort -u >> AUTHORS.txt
.PHONY: readme
readme: README.md
README.md: src/lib.rs
# really, really sorry for this mess.
awk '/^# Chrono /{print "[Chrono][doc]",$$3}' $< > $@
awk '/^# Chrono /{print "[Chrono][doc]",$$3}' $< | sed 's/./=/g' >> $@
echo >> $@
echo '[![Chrono on Travis CI][travis-image]][travis]' >> $@
echo >> $@
echo '[travis-image]: https://travis-ci.org/lifthrasiir/rust-chrono.png' >> $@
echo '[travis]: https://travis-ci.org/lifthrasiir/rust-chrono' >> $@
awk '/^# Chrono /,/^## /' $< | tail -n +2 | head -n -2 >> $@
echo >> $@
echo '[Complete Documentation][doc]' >> $@
echo >> $@
echo '[doc]: https://lifthrasiir.github.io/rust-chrono/' >> $@
echo >> $@
awk '/^## /,/^\*\/$$/' $< | grep -v '^# ' | head -n -2 >> $@

13
README.md
View File

@ -88,6 +88,12 @@ assert_eq!(UTC.ymd_opt(2014, 7, 8).and_hms_opt(21, 15, 33),
LocalResult::Single(UTC.ymd(2014, 7, 8).and_hms(21, 15, 33)));
assert_eq!(UTC.ymd_opt(2014, 7, 8).and_hms_opt(80, 15, 33), LocalResult::None);
assert_eq!(UTC.ymd_opt(2014, 7, 38).and_hms_opt(21, 15, 33), LocalResult::None);
// other time zone objects can be used to construct a local datetime.
// obviously, `local_dt` is normally different from `dt`, but `fixed_dt` should be identical.
let local_dt = Local.ymd(2014, 7, 8).and_hms_milli(9, 10, 11, 12);
let fixed_dt = FixedOffset::east(9 * 3600).ymd(2014, 7, 8).and_hms_milli(18, 10, 11, 12);
assert_eq!(dt, fixed_dt);
~~~~
Various properties are available to the date and time, and can be altered individually.
@ -149,7 +155,7 @@ assert_eq!(format!("{:?}", dt), "2014-11-28T12:00:09Z");
Parsing can be done with three methods:
1. The standard `FromStr` trait (and `parse` method on a string) can be used for
parsing `DateTime<FixedOffset>` and `DateTime<UTC>` values.
parsing `DateTime<FixedOffset>`, `DateTime<UTC>` and `DateTime<Local>` values.
This parses what the `{:?}` (`std::fmt::Debug`) format specifier prints,
and requires the offset to be present.
@ -168,10 +174,12 @@ More detailed control over the parsing process is available via `format` module.
use chrono::*;
let dt = UTC.ymd(2014, 11, 28).and_hms(12, 0, 9);
let fixed_dt = dt.with_timezone(&FixedOffset::east(9*3600));
// method 1
assert_eq!("2014-11-28T12:00:09Z".parse::<DateTime<UTC>>(), Ok(dt.clone()));
assert_eq!("2014-11-28T21:00:09+09:00".parse::<DateTime<UTC>>(), Ok(dt.clone()));
assert_eq!("2014-11-28T21:00:09+09:00".parse::<DateTime<FixedOffset>>(), Ok(fixed_dt.clone()));
// method 2
assert_eq!(UTC.datetime_from_str("2014-11-28 12:00:09", "%Y-%m-%d %H:%M:%S"), Ok(dt.clone()));
@ -179,7 +187,7 @@ assert_eq!(UTC.datetime_from_str("Fri Nov 28 12:00:09 2014", "%a %b %e %T %Y"),
// method 3
assert_eq!(DateTime::parse_from_str("2014-11-28 21:00:09 +09:00", "%Y-%m-%d %H:%M:%S %z"),
Ok(dt.with_timezone(&FixedOffset::east(9*3600))));
Ok(fixed_dt.clone()));
// oops, the year is missing!
assert!(UTC.datetime_from_str("Fri Nov 28 12:00:09", "%a %b %e %T %Y").is_err());
@ -238,4 +246,3 @@ For example, "a month later" of 2014-01-30 is not well-defined
and consequently `UTC.ymd(2014, 1, 30).with_month(2)` returns `None`.
Advanced time zone handling is not yet supported (but is planned in 0.3).

15
src/datetime.rs
View File

@ -13,6 +13,7 @@ use std::ops::{Add, Sub};
use {Weekday, Timelike, Datelike};
use offset::{TimeZone, Offset};
use offset::utc::UTC;
use offset::local::Local;
use offset::fixed::FixedOffset;
use duration::Duration;
use naive::datetime::NaiveDateTime;
@ -305,13 +306,17 @@ impl str::FromStr for DateTime<UTC> {
type Err = ParseError;
fn from_str(s: &str) -> ParseResult<DateTime<UTC>> {
// we parse non-UTC time zones then convert them into UTC
let dt: DateTime<FixedOffset> = try!(s.parse());
Ok(dt.with_timezone(&UTC))
s.parse::<DateTime<FixedOffset>>().map(|dt| dt.with_timezone(&UTC))
}
}
// TODO: FromStr for DateTime<Local> is quite hard without a new offset design
impl str::FromStr for DateTime<Local> {
type Err = ParseError;
fn from_str(s: &str) -> ParseResult<DateTime<Local>> {
s.parse::<DateTime<FixedOffset>>().map(|dt| dt.with_timezone(&Local))
}
}
#[cfg(test)]
mod tests {
@ -362,6 +367,8 @@ mod tests {
assert_eq!("2015-2-18T13:16:9.15-10:00".parse::<DateTime<UTC>>(),
Ok(UTC.ymd(2015, 2, 18).and_hms_milli(23, 16, 9, 150)));
assert!("2015-2-18T23:16:9.15".parse::<DateTime<UTC>>().is_err());
// no test for `DateTime<Local>`, we cannot verify that much.
}
#[test]

13
src/lib.rs
View File

@ -85,6 +85,13 @@ assert_eq!(UTC.ymd_opt(2014, 7, 8).and_hms_opt(21, 15, 33),
LocalResult::Single(UTC.ymd(2014, 7, 8).and_hms(21, 15, 33)));
assert_eq!(UTC.ymd_opt(2014, 7, 8).and_hms_opt(80, 15, 33), LocalResult::None);
assert_eq!(UTC.ymd_opt(2014, 7, 38).and_hms_opt(21, 15, 33), LocalResult::None);
// other time zone objects can be used to construct a local datetime.
// obviously, `local_dt` is normally different from `dt`, but `fixed_dt` should be identical.
let local_dt = Local.ymd(2014, 7, 8).and_hms_milli(9, 10, 11, 12);
let fixed_dt = FixedOffset::east(9 * 3600).ymd(2014, 7, 8).and_hms_milli(18, 10, 11, 12);
assert_eq!(dt, fixed_dt);
# let _ = local_dt;
~~~~
Various properties are available to the date and time, and can be altered individually.
@ -149,7 +156,7 @@ assert_eq!(format!("{:?}", dt), "2014-11-28T12:00:09Z");
Parsing can be done with three methods:
1. The standard `FromStr` trait (and `parse` method on a string) can be used for
parsing `DateTime<FixedOffset>` and `DateTime<UTC>` values.
parsing `DateTime<FixedOffset>`, `DateTime<UTC>` and `DateTime<Local>` values.
This parses what the `{:?}` (`std::fmt::Debug`) format specifier prints,
and requires the offset to be present.
@ -168,10 +175,12 @@ More detailed control over the parsing process is available via `format` module.
use chrono::*;
let dt = UTC.ymd(2014, 11, 28).and_hms(12, 0, 9);
let fixed_dt = dt.with_timezone(&FixedOffset::east(9*3600));
// method 1
assert_eq!("2014-11-28T12:00:09Z".parse::<DateTime<UTC>>(), Ok(dt.clone()));
assert_eq!("2014-11-28T21:00:09+09:00".parse::<DateTime<UTC>>(), Ok(dt.clone()));
assert_eq!("2014-11-28T21:00:09+09:00".parse::<DateTime<FixedOffset>>(), Ok(fixed_dt.clone()));
// method 2
assert_eq!(UTC.datetime_from_str("2014-11-28 12:00:09", "%Y-%m-%d %H:%M:%S"), Ok(dt.clone()));
@ -179,7 +188,7 @@ assert_eq!(UTC.datetime_from_str("Fri Nov 28 12:00:09 2014", "%a %b %e %T %Y"),
// method 3
assert_eq!(DateTime::parse_from_str("2014-11-28 21:00:09 +09:00", "%Y-%m-%d %H:%M:%S %z"),
Ok(dt.with_timezone(&FixedOffset::east(9*3600))));
Ok(fixed_dt.clone()));
// oops, the year is missing!
assert!(UTC.datetime_from_str("Fri Nov 28 12:00:09", "%a %b %e %T %Y").is_err());