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ISO8601 Interval Separator #611

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1f0ecc4
Add support for alternative separator
volks73 Mar 30, 2022
3d1660e
Add tests for new interval separator
volks73 Mar 30, 2022
15bc53f
Add more examples of interval parsing to docs
volks73 Mar 31, 2022
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80 changes: 44 additions & 36 deletions docs/docs/parsing.md
View file
Original file line number Diff line number Diff line change
@@ -37,66 +37,74 @@ ParserError: Unable to parse string [31-01-01]
'2031-01-01T00:00:00+00:00'
```


## RFC 3339

| String | Output |
| --------------------------------- | ------------------------------------------|
| 1996-12-19T16:39:57-08:00 | 1996-12-19T16:39:57-08:00 |
| 1990-12-31T23:59:59Z | 1990-12-31T23:59:59+00:00 |
| String | Output |
| ------------------------- | ------------------------- |
| 1996-12-19T16:39:57-08:00 | 1996-12-19T16:39:57-08:00 |
| 1990-12-31T23:59:59Z | 1990-12-31T23:59:59+00:00 |

## ISO 8601

### Datetime

| String | Output |
| --------------------------------- | ----------------------------------------- |
| 20161001T143028+0530 | 2016-10-01T14:30:28+05:30 |
| 20161001T14 | 2016-10-01T14:00:00+00:00 |
| String | Output |
| -------------------- | ------------------------- |
| 20161001T143028+0530 | 2016-10-01T14:30:28+05:30 |
| 20161001T14 | 2016-10-01T14:00:00+00:00 |

### Date

| String | Output |
| --------------------------------- | ----------------------------------------- |
| 2012 | 2012-01-01T00:00:00+00:00 |
| 2012-05-03 | 2012-05-03T00:00:00+00:00 |
| 20120503 | 2012-05-03T00:00:00+00:00 |
| 2012-05 | 2012-05-01T00:00:00+00:00 |
| String | Output |
| ---------- | ------------------------- |
| 2012 | 2012-01-01T00:00:00+00:00 |
| 2012-05-03 | 2012-05-03T00:00:00+00:00 |
| 20120503 | 2012-05-03T00:00:00+00:00 |
| 2012-05 | 2012-05-01T00:00:00+00:00 |

### Ordinal day

| String | Output |
| ---------------------------------- | ----------------------------------------- |
| 2012-007 | 2012-01-07T00:00:00+00:00 |
| 2012007 | 2012-01-07T00:00:00+00:00 |
| String | Output |
| -------- | ------------------------- |
| 2012-007 | 2012-01-07T00:00:00+00:00 |
| 2012007 | 2012-01-07T00:00:00+00:00 |

### Week number

| String | Output |
| --------------------------------- | ----------------------------------------- |
| 2012-W05 | 2012-01-30T00:00:00+00:00 |
| 2012W05 | 2012-01-30T00:00:00+00:00 |
| 2012-W05-5 | 2012-02-03T00:00:00+00:00 |
| 2012W055 | 2012-02-03T00:00:00+00:00 |
| String | Output |
| ---------- | ------------------------- |
| 2012-W05 | 2012-01-30T00:00:00+00:00 |
| 2012W05 | 2012-01-30T00:00:00+00:00 |
| 2012-W05-5 | 2012-02-03T00:00:00+00:00 |
| 2012W055 | 2012-02-03T00:00:00+00:00 |

### Time

When passing only time information the date will default to today.

| String | Output |
| --------------------------------- | ------------------------------------------ |
| 00:00 | 2016-12-17T00:00:00+00:00 |
| 12:04:23 | 2016-12-17T12:04:23+00:00 |
| 120423 | 2016-12-17T12:04:23+00:00 |
| 12:04:23.45 | 2016-12-17T12:04:23.450000+00:00 |
| String | Output |
| ----------- | -------------------------------- |
| 00:00 | 2016-12-17T00:00:00+00:00 |
| 12:04:23 | 2016-12-17T12:04:23+00:00 |
| 120423 | 2016-12-17T12:04:23+00:00 |
| 12:04:23.45 | 2016-12-17T12:04:23.450000+00:00 |

### Intervals

| String | Output |
| ----------------------------------------- | ------------------------------------------------------ |
| 2007-03-01T13:00:00Z/2008-05-11T15:30:00Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 2008-05-11T15:30:00Z/P1Y2M10DT2H30M | 2008-05-11T15:30:00+00:00 -> 2009-07-21T18:00:00+00:00 |
| P1Y2M10DT2H30M/2008-05-11T15:30:00Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| String | Output |
| ------------------------------------------ | ------------------------------------------------------ |
| 2007-03-01T13:00:00Z/2008-05-11T15:30:00Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 2008-05-11T15:30:00Z/P1Y2M10DT2H30M | 2008-05-11T15:30:00+00:00 -> 2009-07-21T18:00:00+00:00 |
| P1Y2M10DT2H30M/2008-05-11T15:30:00Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 20070301T130000Z/20080511T153000Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 20080511T153000Z/P1Y2M10DT2H30M | 2008-05-11T15:30:00+00:00 -> 2009-07-21T18:00:00+00:00 |
| P1Y2M10DT2H30M/20080511T153000Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 2007-03-01T13:00:00Z--2008-05-11T15:30:00Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 2008-05-11T15:30:00Z--P1Y2M10DT2H30M | 2008-05-11T15:30:00+00:00 -> 2009-07-21T18:00:00+00:00 |
| P1Y2M10DT2H30M--2008-05-11T15:30:00Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 20070301T130000Z--20080511T153000Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |
| 20080511T153000Z--P1Y2M10DT2H30M | 2008-05-11T15:30:00+00:00 -> 2009-07-21T18:00:00+00:00 |
| P1Y2M10DT2H30M--20080511T153000Z | 2007-03-01T13:00:00+00:00 -> 2008-05-11T15:30:00+00:00 |

!!!note

5 changes: 3 additions & 2 deletions pendulum/parsing/__init__.py
View file
Original file line number Diff line number Diff line change
@@ -212,10 +212,11 @@ def __init__(self, start=None, end=None, duration=None):


def _parse_iso8601_interval(text):
if "/" not in text:
if "/" not in text and "--" not in text:
raise ParserError("Invalid interval")

first, last = text.split("/")
# first, last = text.split("/")
first, last = re.split("/|--", text)
start = end = duration = None

if first[0] == "P":
90 changes: 90 additions & 0 deletions tests/test_parsing.py
View file
Original file line number Diff line number Diff line change
@@ -101,6 +101,16 @@ def test_parse_interval():
assert_datetime(period.end, 2009, 7, 21, 18, 0, 0, 0)
assert period.end.offset == 0

text = "20080511T153000Z/P1Y2M10DT2H30M"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2008, 5, 11, 15, 30, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2009, 7, 21, 18, 0, 0, 0)
assert period.end.offset == 0

text = "P1Y2M10DT2H30M/2008-05-11T15:30:00Z"

period = pendulum.parse(text)
@@ -111,6 +121,16 @@ def test_parse_interval():
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "P1Y2M10DT2H30M/20080511T153000Z"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2007, 3, 1, 13, 0, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "2007-03-01T13:00:00Z/2008-05-11T15:30:00Z"

period = pendulum.parse(text)
@@ -121,6 +141,76 @@ def test_parse_interval():
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "20070301T130000Z/20080511T153000Z"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2007, 3, 1, 13, 0, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "2008-05-11T15:30:00Z--P1Y2M10DT2H30M"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2008, 5, 11, 15, 30, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2009, 7, 21, 18, 0, 0, 0)
assert period.end.offset == 0

text = "20080511T153000Z--P1Y2M10DT2H30M"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2008, 5, 11, 15, 30, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2009, 7, 21, 18, 0, 0, 0)
assert period.end.offset == 0

text = "P1Y2M10DT2H30M--2008-05-11T15:30:00Z"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2007, 3, 1, 13, 0, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "P1Y2M10DT2H30M--20080511T153000Z"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2007, 3, 1, 13, 0, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "2007-03-01T13:00:00Z--2008-05-11T15:30:00Z"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2007, 3, 1, 13, 0, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0

text = "20070301T130000Z--20080511T153000Z"

period = pendulum.parse(text)

assert isinstance(period, pendulum.Period)
assert_datetime(period.start, 2007, 3, 1, 13, 0, 0, 0)
assert period.start.offset == 0
assert_datetime(period.end, 2008, 5, 11, 15, 30, 0, 0)
assert period.end.offset == 0


def test_parse_now():
dt = pendulum.parse("now")