Data Exchange, IGES - Add stream-based I/O support - #1406
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dpasukhi
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Jul 29, 2026
dpasukhi
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- Add IGES stream reading and writing to DEIGES providers.
- Extend IFSelect, XSControl, and work libraries with generic stream output.
- Keep STEP work-library output aligned with the shared stream interface.
- Convert the legacy IGES parser from C to modern C++.
- Introduce buffered parsing of fixed 80-column IGES records.
- Support LF, CRLF, CR-only, and delimiter-free record layouts.
- Preserve FNES preamble detection and encoded record handling.
- Handle stream errors, enabled exceptions, partial reads, and cleanup safely.
- Isolate mutable parser data with thread-local storage.
- Serialize access to process-wide IGES configuration and restore it on exit.
- Preserve supplied work sessions, transferred models, and selected modifiers.
- Apply modern OCCT naming, casting, documentation, and control-flow style.
- Add tests for shape and document stream I/O, record layouts, and failures.
Add stream read/write support through IFSelect and XSControl work libraries, implement IGES stream handling on top of stream-backed parser entry points, and wire DEIGES provider stream operations with serialization guards. Add focused GTests for DEIGES provider stream read/write paths and keep STEP work library write support aligned with the new shared stream interface.
Convert the legacy IGES parser to modern C++ with buffered fixed-record stream input, FNES compatibility, thread-local parser state, and failure-safe cleanup. Complete generic IFSelect/XSControl stream writing, preserve modifiers and work sessions, guard global IGES configuration, and extend provider coverage for alternate record separators and stream failures.
dpasukhi
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dpasukhi
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July 29, 2026 14:57
Add stream read/write support through IFSelect and XSControl work libraries, implement IGES stream handling on top of stream-backed parser entry points, and wire DEIGES provider stream operations with serialization guards. Add focused GTests for DEIGES provider stream read/write paths and keep STEP work library write support aligned with the new shared stream interface.
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