add a new from_str_at_date(date, string) function

[sylvestre]

No description provided.

[codecov]

Codecov Report

Merging #2 (5c9e485) into main (1f0eae3) will increase coverage by 0.92%.
The diff coverage is 67.39%.

@@            Coverage Diff             @@
##             main       #2      +/-   ##
==========================================
+ Coverage   70.54%   71.47%   +0.92%     
==========================================
  Files           2        2              
  Lines         275      312      +37     
  Branches       66       75       +9     
==========================================
+ Hits          194      223      +29     
  Misses         39       39              
- Partials       42       50       +8     

Flag	Coverage Δ
macos_latest	71.47% <67.39%> (+0.92%)	⬆️
ubuntu_latest	71.47% <67.39%> (+0.92%)	⬆️
windows_latest	71.47% <67.39%> (+0.92%)	⬆️

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Impacted Files	Coverage Δ
tests/simple.rs	75.86% <65.00%> (-2.49%)	⬇️
src/lib.rs	68.87% <69.23%> (+2.58%)	⬆️

[sylvestre]

AFAIK, not needed for coreutils (yet?) but an interesting features

[cakebaker]

It's a bit an unusual approach to delegate from from_str_at_date to from_str instead of the other way around I expected to see before starting the review.