fix: PH2141 false positive for regions containing copyright comments

[Copilot]

• Fix PH2141 false positive for regions containing copyright comments
• Add comprehensive test coverage for copyright detection scenarios
• Address code review feedback:
  • Update PH2141.md documentation to clarify copyright comments are allowed
  • Simplify IsRegionEmpty logic by immediately returning false for non-comment content
  • Replace string concatenation with StringBuilder for better performance
• Ensure all tests pass (2010 tests)
• Verify formatting compliance with .editorconfig rules

Changes Made

Documentation Updates

• Enhanced PH2141.md to clarify that regions with copyright information are not considered empty
• Added examples showing both invalid (regular comments) and valid (copyright) scenarios

Code Improvements

• Simplified IsRegionEmpty method by removing unnecessary hasNonCommentContent variable
• Replaced string concatenation with StringBuilder in ContainsCopyrightInformation method
• Fixed code analysis warnings (CA1834, IDE0058)

All changes maintain backward compatibility and existing functionality while addressing the false positive issue for copyright regions.

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[Brian Collamore (bcollamore)]

Let's update documentation (PH2141.md) to note copyright comment is allowed, but otherwise, just comments is not allowed.

[Brian Collamore (bcollamore)]

Copilot see comments above. Also, SonarCloud suggests using StringBuilder instead on line 152.

[Copilot]

Copilot see comments above. Also, SonarCloud suggests using StringBuilder instead on line 152.

Replaced string concatenation with StringBuilder for better performance and fixed the CA1834 warning by using char instead of string for the space character. (3787a0c)

[Copilot]

Let's update documentation (PH2141.md) to note copyright comment is allowed, but otherwise, just comments is not allowed.

Updated PH2141.md documentation to clarify that regions containing copyright information are allowed while regular comment-only regions are not. Added examples showing both scenarios. (3787a0c)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud