Fixing parenthesis in steps / adding escape character

[ThoSe1990]

Added escape character for parenthesis and curly braces.

Reported here: #128

Summary by CodeRabbit

• New Features

  • Added support for step definitions that capture and validate coordinate values, item counts, and status text.
  • Added an example step for displaying coordinate values.

• Bug Fixes

  • Improved handling of literal parentheses and curly braces in step patterns.
  • Preserved correct parsing of typed values alongside escaped characters.
  • Enhanced support for optional singular and plural wording.

• Tests

  • Added broader coverage for escaped characters, alternation, boundaries, and coordinate scenarios.

[coderabbitai]

📝 Walkthrough

Walkthrough

The change updates regex construction to preserve escaped parentheses and curly braces, adds focused unit coverage for delimiter escaping and typed captures, and extends stress/example steps for coordinates, optional item wording, and literal status text.

Changes

Regex escaping

Layer / File(s)	Summary
Regex utility handling src/util_regex.hpp	Regex construction now preserves escaped bracket characters while continuing to generate optional groups and word alternations.
Regex matching coverage gtest/step_finder.cc	Tests cover escaped parentheses and braces, mixed {int} placeholders, alternation, boundaries, and unrelated backslashes.
Stress-test integration stress-tests/CMakeLists.txt, stress-tests/step_definition.cpp, stress-tests/features/stress-tests.feature, examples/step_definition.cpp	Stress and example steps cover coordinate parsing, singular/plural item text, and literal {status} capture; the stress executable also includes hooks.cpp.

Estimated code review effort: 3 (Moderate) | ~20 minutes

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check	⚠️ Warning	The description omits the required template sections for Summary, Motivation, Changes, How to Test, and Checklist.	Expand it to match the template: add summary, issue link in motivation, specific changed files, test commands, and checklist items.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title matches the main change: adding escape handling for parentheses and braces in step patterns.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/values-in-parenthesis

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