Greedy parsing of datetime before time delta #115
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Add a passing unit test for parsing a datetime ending in the letter Z,
as in
2023-06-03 12:00:01Z
This is treated as a datetime in the UTC time zone.
Simulate greedy parsing of an absolute datetime in the prefix of a string before parsing a subsequent time delta in the suffix of the string. This does not change the behavior of `parse_datetime`, it just prepares the code for a future change that allows parsing both the absolute datetime and the time delta from the same string. Greedy parsing is implemented by iterating over a list of patterns in decreasing order of length so that longer patterns are tried before shorter patterns. This guarantees that if there is an absolute datetime present at the beginning of the string, then it will definitely be parsed and the remaining part of the string is assumed to contain a time delta.
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cakebaker
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Feb 11, 2025
Co-authored-by: Daniel Hofstetter <[email protected]>
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #115 +/- ##
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Simulate greedy parsing of an absolute datetime in the prefix of a
string before parsing a subsequent time delta in the suffix of the
string. This does not change the behavior of
parse_datetime, it justprepares the code for a future change that allows parsing both the
absolute datetime and the time delta from the same string.
Greedy parsing is implemented by iterating over a list of patterns in
decreasing order of length so that longer patterns are tried before
shorter patterns. This guarantees that if there is an absolute datetime
present at the beginning of the string, then it will definitely be
parsed and the remaining part of the string is assumed to contain a time
delta.
These changes were extracted from pull request #110.