docs: refactor Office splitter to separate format handlers with security#17
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docs: refactor Office splitter to separate format handlers with security#17
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…urity Refactor the Office splitter design document with major architectural changes: - Split single OfficeSplitter into WordSplitter, PPTSplitter, ExcelSplitter - Remove legacy OLE format support (.doc, .ppt, .xls) - only OOXML supported - Add PathValidator for security against path traversal attacks - Add PageRangeParser for page/sheet range selection - Add RenderWindowPoolFactory for shared rendering resources - Add ChunkedRenderer for memory-optimized large document rendering - Update architecture diagrams to reflect new modular design - Add comprehensive test specifications for all components This design provides better maintainability through separation of concerns and improved security with explicit path validation. Co-Authored-By: Claude <noreply@anthropic.com>
Unify page range input format across all document types by removing name-based Sheet selection. Excel now uses the same numeric format as PDF, Word, and PowerPoint (e.g., "1-3,5" instead of "#1-2" or "Sheet1,数据表"). Changes: - Remove type and names fields from SheetRange interface - Simplify parseSheetRange to use parseNumeric directly - Update filterSheets to index-only filtering - Update documentation and examples Co-Authored-By: Claude <noreply@anthropic.com>
Keep the comprehensive design with: - Separate splitters (Word/PPT/Excel) - Security features (PathValidator) - Memory optimization (ChunkedRenderer) - Window pool management Discard master's simpler single OfficeSplitter approach. Co-Authored-By: Claude <noreply@anthropic.com>
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