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Fix some regex-based linters getting spurious matches #620

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Merged
merged 20 commits into from
Dec 4, 2020

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MichaelChirico
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@MichaelChirico MichaelChirico commented Nov 29, 2020

Closes #441

Forked from #467 -- re-filing with the base branch on the main repo (cc @russHyde)

russHyde and others added 9 commits April 6, 2020 10:11
Tests added to ensure paren-brace linter, equals-NA linter and no-tab
linter do not flag lints in irrelevant sections of code (eg, strings /
comments).
This can check if a regex-match is covered by an expression in a
source_file and restrict analysis to tokens of a particular type, if
required.
Also, rename file containing equals_na_linter to match format of other
linter-files (`*_linter.R` not `*_lintr.R`)
@MichaelChirico MichaelChirico force-pushed the regex-based-linter-issue-441 branch from 2e5a03d to 2cc47ec Compare November 29, 2020 02:31
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For now I'll leave this as is on the assumption that #546 would be merged first. After that, I would keep the tests for equals_na_linter from here.

@MichaelChirico MichaelChirico changed the title Regex based linter issue 441 Fix some regex-based linters getting spurious matches Nov 29, 2020
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The same issue as #546 (about the XML tree being missing when there's a syntax error) was hitting equals_na_linter in this branch, so I just went ahead and reverted that part. First, I copied the tests over there as well.

AshesITR
AshesITR previously approved these changes Nov 29, 2020
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LGTM

AshesITR
AshesITR previously approved these changes Nov 30, 2020
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Thanks for resurrecting this PR!

AshesITR
AshesITR previously approved these changes Nov 30, 2020
@AshesITR AshesITR merged commit f5ce702 into master Dec 4, 2020
@AshesITR AshesITR deleted the regex-based-linter-issue-441 branch December 4, 2020 06:35
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paren_brace_linter false positive within regex strings: "(match_group){quantifier}"
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