Lexer options don't get passed to lexer

[Copilot]

• Explore repository structure and understand the issue
• Set up development environment and run existing tests (all 15 scenarios passing)
• Analyze the problem: lexer_options are not being passed to Rouge::Lexer.find_fancy()
• Verify Rouge API supports lexer_options as third parameter to find_fancy()
• Create focused test case for lexer_options functionality
• Make minimal code change to pass lexer_options to find_fancy()
• Verify tests pass and lexer options work correctly (all 16 scenarios now passing)
• Manual testing confirms the fix works as expected

Changes Made:

1. Fixed the core issue in /lib/middleman-syntax/highlighter.rb:

   • Extract lexer_options from highlighter_options before calling find_fancy()
   • Pass lexer_options as the third parameter to Rouge::Lexer.find_fancy()
   • Remove lexer_options parameter from lexer.lex() call (which was causing deprecation warnings)

2. Added comprehensive test in /features/lexer_options.feature:

   • Tests that custom prompt patterns work correctly with console lexer
   • Verifies myshell>>> is parsed as single prompt instead of myshell> + >> operator

3. Updated step definitions in /features/support/step_definitions.rb:

   • Added support for new Cucumber step format

4. Updated .gitignore:

   • Added vendor/bundle to exclude bundled dependencies

Technical Details:
The issue was that lexer_options were being extracted from the configuration but only passed to lexer.lex(), which doesn't accept options (causing deprecation warnings). The Rouge API requires lexer options to be passed to Rouge::Lexer.find_fancy() as the third parameter to properly configure the lexer instance.

Test Results:

• All existing 15 tests continue to pass
• New lexer_options test passes, confirming custom prompts work correctly
• No deprecation warnings from Rouge
• Minimal, surgical code change that doesn't break existing functionality

Fixes #72.

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[markets]

Please remove the files under ./vendor/*

[Copilot]

Please remove the files under ./vendor/*

Removed all files under ./vendor/* and .bundle/* from git tracking in commit 5a4fcb6. Also updated .gitignore to prevent these dependency files from being committed again in the future.