Skeleton matching with the components bag

[gregtatum]

This PR contains work from PR #480, but also implements some of the skeleton matching algorithm. For review, please only consider Part 3.

[coveralls]

Pull Request Test Coverage Report for Build e76177bb6c273946b531f99b157af4d1d2042792-PR-479

• 353 of 592 (59.63%) changed or added relevant lines in 10 files are covered.
• 4 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.8%) to 71.862%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
components/datetime/src/error.rs	0	1	0.0%
components/datetime/src/fields/length.rs	0	1	0.0%
components/datetime/src/fields/mod.rs	4	11	36.36%
components/datetime/src/provider/helpers.rs	3	16	18.75%
components/datetime/src/pattern/mod.rs	48	62	77.42%
components/provider_cldr/src/transform/dates.rs	28	43	65.12%
components/datetime/src/options/components.rs	71	107	66.36%
components/datetime/src/skeleton.rs	73	117	62.39%
components/datetime/src/fields/symbols.rs	37	88	42.05%
components/datetime/src/provider/mod.rs	89	146	60.96%

Files with Coverage Reduction	New Missed Lines	%
components/datetime/src/fields/symbols.rs	1	64.21%
components/datetime/src/provider/mod.rs	1	53.09%
components/datetime/src/options/components.rs	2	59.2%

Totals
Change from base Build b15c0b36901095406a67e3620a3d1d0e294b7692:	-0.8%
Covered Lines:	5215
Relevant Lines:	7257

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💛 - Coveralls

[jira-pull-request-webhook]

Notice: the branch changed across the force-push!

• Cargo.lock is now changed in the branch
• components/datetime/Cargo.toml is now changed in the branch
• components/datetime/src/error.rs is different
• components/datetime/src/fields/length.rs is different
• components/datetime/src/fields/mod.rs is different
• components/datetime/src/fields/symbols.rs is different
• components/datetime/src/lib.rs is different
• components/datetime/src/options/components.rs is different
• components/datetime/src/options/preferences.rs is no longer changed in the branch
• components/datetime/src/options/skeleton.json is no longer changed in the branch
• components/datetime/src/options/style.rs is no longer changed in the branch
• components/datetime/src/pattern/mod.rs is now changed in the branch
• components/datetime/src/provider/helpers.rs is different
• components/datetime/src/provider/mod.rs is different
• components/datetime/src/skeleton.rs is different
• components/datetime/tests/datetime.rs is different
• components/datetime/tests/fixtures/mod.rs is no longer changed in the branch
• components/datetime/tests/fixtures/structs.rs is no longer changed in the branch
• components/datetime/tests/fixtures/tests/components.json is different
• components/provider_cldr/Cargo.toml is now changed in the branch
• components/provider_cldr/src/transform/dates.rs is different
• resources/testdata/data/json/dates/gregory@1/ar-EG.json is different
• resources/testdata/data/json/dates/gregory@1/ar.json is different
• resources/testdata/data/json/dates/gregory@1/bn.json is different
• resources/testdata/data/json/dates/gregory@1/ccp.json is different
• resources/testdata/data/json/dates/gregory@1/en-US-posix.json is different
• resources/testdata/data/json/dates/gregory@1/en-ZA.json is different
• resources/testdata/data/json/dates/gregory@1/en.json is different
• resources/testdata/data/json/dates/gregory@1/es-AR.json is different
• resources/testdata/data/json/dates/gregory@1/es.json is different
• resources/testdata/data/json/dates/gregory@1/fr.json is different
• resources/testdata/data/json/dates/gregory@1/ja.json is different
• resources/testdata/data/json/dates/gregory@1/ru.json is different
• resources/testdata/data/json/dates/gregory@1/sr-Cyrl.json is different
• resources/testdata/data/json/dates/gregory@1/sr-Latn.json is different
• resources/testdata/data/json/dates/gregory@1/sr.json is different
• resources/testdata/data/json/dates/gregory@1/th.json is different
• resources/testdata/data/json/dates/gregory@1/tr.json is different
• resources/testdata/data/json/dates/gregory@1/und.json is different

View Diff Across Force-Push

~ Your Friendly Jira-GitHub PR Checker Bot

[jira-pull-request-webhook]

Notice: the branch changed across the force-push!

• components/datetime/src/pattern/mod.rs is different
• components/datetime/src/provider/mod.rs is different
• components/datetime/src/skeleton.rs is different

View Diff Across Force-Push

~ Your Friendly Jira-GitHub PR Checker Bot

[codecov-io]

Codecov Report

Merging #479 (bfb62f4) into master (b15c0b3) will decrease coverage by 0.98%.
The diff coverage is 59.62%.

@@            Coverage Diff             @@
##           master     #479      +/-   ##
==========================================
- Coverage   73.92%   72.94%   -0.99%     
==========================================
  Files         118      119       +1     
  Lines        6396     6981     +585     
==========================================
+ Hits         4728     5092     +364     
- Misses       1668     1889     +221     

Impacted Files	Coverage Δ
components/datetime/src/error.rs	0.00% <0.00%> (ø)
components/datetime/src/fields/length.rs	83.33% <0.00%> (ø)
components/datetime/src/lib.rs	100.00% <ø> (ø)
components/datetime/src/provider/helpers.rs	52.83% <18.75%> (-6.12%)	⬇️
components/datetime/src/fields/mod.rs	32.14% <36.36%> (+32.14%)	⬆️
components/datetime/src/fields/symbols.rs	64.21% <42.04%> (-12.49%)	⬇️
components/datetime/src/provider/mod.rs	53.09% <60.95%> (+28.09%)	⬆️
components/datetime/src/skeleton.rs	62.39% <62.39%> (ø)
components/provider_cldr/src/transform/dates.rs	72.03% <65.11%> (-1.03%)	⬇️
components/datetime/src/options/components.rs	59.20% <66.35%> (+42.53%)	⬆️
... and 6 more

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[gregtatum]

I'm opening a new PR with the latest work. See #587 for the latest.