docs: Document leading dot literals investigation and decision #6287
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- Investigated 26+ approaches for adding leading dot support (.5 instead of 0.5) - Identified fundamental conflict with tuple member access (tuple.5) - Explored token-level, parser-level, and advanced parsing techniques - Determined that LL(1) grammar limitations prevent clean implementation - Documented decision to maintain current grammar for consistency and reliability - Added comprehensive analysis for future reference
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Summary
This PR documents a comprehensive investigation into adding leading dot literal support ( instead of ) to Dafny's grammar.
Investigation Results
Documentation Added
Value
This documentation:
No Code Changes
This PR contains only documentation - no grammar or code changes were made, preserving all existing functionality.