This closes #2411, anchor the wildcard match of the lookup functions

[PhilflowIO]

PR Details

Description

Adds matchPatternWholeText, which matches the pattern against the whole text, and uses it in the wildcard branch of compareFormulaArg. Without a wildcard in the lookup value it compares the strings directly; with one it anchors the regular expression at both ends.

matchPattern is left alone, so FIND and SEARCH keep reporting any occurrence.

Related Issue

Closes #2411

Motivation and Context

compareFormulaArg used matchPattern, which reports any occurrence inside the cell. VLOOKUP, HLOOKUP and XLOOKUP therefore matched a substring and returned a value from the wrong row, without an error. #2267 applied the same anchoring to the SUMIF/COUNTIF criteria; compareFormulaArg is the other place that needs it.

How Has This Been Tested

New test TestCalcLookupWildcardMatch: exact matches, substring lookup values, the empty lookup value, * and ? wildcards for VLOOKUP, HLOOKUP and XLOOKUP, and FIND/SEARCH to pin the unanchored behaviour they need.

go test ./... passes on go1.26.8 linux/amd64. gofmt -s -l . is empty.

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.72%. Comparing base (0434413) to head (f2e0c89).
⚠️ Report is 17 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2418      +/-   ##
==========================================
- Coverage   99.72%   99.72%   -0.01%     
==========================================
  Files          32       32              
  Lines       32480    32531      +51     
==========================================
+ Hits        32391    32441      +50     
- Misses         87       88       +1     
  Partials        2        2              

Flag	Coverage Δ
unittests	99.72% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[xuri]

Thanks for your pull request. I've made some changes based on your code branch.