feat: add shared formula logic

tafia / calamine

A pure Rust Excel/OpenDocument SpreadSheets file reader: rust on metal sheets

MIT License

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feat: add shared formula logic #418

Closed ling7334 closed 2 months ago

ling7334 commented 3 months ago

As #391 mentioned, f tag can use shared formula which doesn't has real value. formula need to be calculated, and offset can either be in row or column.

In this PR, load_shared_formula doesn't applied, because it take a full scan of file.

ling7334 commented 2 months ago

close this PR for trying anoter concept.