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-# Pattern Matching Debugging Context (rawk)
-
-## Current State
-- Pattern matching functions are parsed and detected correctly.
-- Each pattern line is processed, but only the last pattern is present in the generated function body.
-- Debug output shows that the result variable is being overwritten instead of concatenated.
-- The parse_pattern_line function returns a string like 'if (...) { return ... }', and the main loop is supposed to append each to the result.
-- However, the result variable is not accumulating all patterns as expected.
-
-## Root Cause Analysis
-- The result variable is being overwritten instead of appended to in the pattern matching conversion loop.
-- This is likely due to a misplaced assignment or a logic error in the loop or in parse_pattern_line.
-- The cleanup logic previously removed concatenation, but even after removing it, the result is still not correct.
-- Debug output shows that after each pattern, result only contains the most recent pattern.
-
-## Next Steps
-1. Double-check that result is only initialized once before the loop and only appended to inside the loop.
-2. Add debug prints for pattern_code and result before and after the concatenation in the loop.
-3. Check the final assembly of the function body after the loop.
-4. If the logic is correct, but the output is still wrong, check how the function body is constructed and printed after the loop.
-5. Once fixed, remove debug output and document the fix in this file.
-
-## Findings
-- Debug output confirms that each new pattern overwrites the result instead of appending to it.
-- The result variable was initialized with a string (e.g., 'case value of\n'), and each new pattern was not being appended to the accumulating result.
-- The correct approach is to initialize result as an empty string and append each pattern's code to it.
-- Plan: Patch the code so result is initialized as an empty string and each pattern is appended, not overwritten. Remove any leftover 'case value of' initialization.
-
-## Deeper Debug
-- After patching, the generated function body still only contains the last pattern.
-- This suggests that either parse_pattern_line is not returning the correct string for each pattern, or the result concatenation logic is still faulty.
-- Next step: Add a print of the full result variable after the loop, before any cleanup, to see what is actually being accumulated.
-- Also check if parse_pattern_line is returning the correct string for each pattern.
-
-## Holistic Review Plan
-- Review the pattern matching conversion loop and parse_pattern_line function.
-- Check the initialization and update of the result variable.
-- Confirm that each pattern is being appended, not overwritten.
-- Review the final assembly and output of the function body.
-- Document all findings and next steps here as we continue to resolve this last remaining issue.
-
-## Resolution (2024-06-10)
-- **Root cause:** awk variable shadowing: the local variable 'result' in parse_pattern_line was clobbering the outer result accumulator in the pattern matching conversion function.
-- **Fix:** Renamed the local variable to 'pattern_result'.
-- **Validation:** The generated function body now correctly includes all patterns as an if/else chain. The pattern matching test suite passes.
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