Streaming writer handle, CLI tool, schema inference, and write/Arrow bindings for C++/Rust/Python - #93

Merged

GabrielMarquezMatte merged 52 commits into

Aug 26, 2026

Commits on Aug 20, 2026

fix: export xl_write_typed from the Windows .def
GabrielMarquezMatte
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a5bbfb0
feat(cpp): add xl::write_columns, a zero-copy columnar write
GabrielMarquezMatte
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8e175ff
fix(cpp): decode bool fields from the XL_T_BOOL byte buffer, not as int64
GabrielMarquezMatte
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5789139
feat(cpp): support std::optional fields for nullable columns
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387cfa5
feat(cpp): add xl::write_sheet<T> over the existing ExcelMapper
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aaf0293
feat(rust): declare xl_write_typed and add WriteOptions
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9f13866
feat(rust): add ExcelWriter and writer::write_sheet
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3868b97
feat(rust): generate ExcelWriter from #[derive(ExcelMapper)]
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68840ff
bench(rust): add write benchmarks against rust_xlsxwriter
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bd0e96d
bench(cpp): add write benchmarks for write_columns and write_sheet
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6a24fa6
@

GabrielMarquezMatte
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claude
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fd3af87
bench(cpp): compare writing against xlnt and xlsxio
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481fecd
docs: publish the Python and C++ write benchmark numbers
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6c3f128
bench(cpp): add libxlsxwriter to the write comparison
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5f8f4d5
bench(cpp): compare against DuckDB via its excel extension
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0988ea8
Fixing xlsxio benchmark
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3c92cad
Updating README with duckdb data
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e5fa125
chore: gitignore .superpowers/ (subagent-driven-development scratch)

GabrielMarquezMatte
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claude
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e645d4b

Commits on Aug 21, 2026

refactor(native): share the byte/tri-state option decoders between both option structs
GabrielMarquezMatte
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d5f1228
refactor(native): share the skip-to-header-row loop between parse_typed and infer_schema
GabrielMarquezMatte
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2d7ebb7
refactor(cpp): collapse the six scalar column factories onto one constexpr template
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4c784ba
refactor(cpp): share the options-lowering block across open/open_memory/write_columns
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039a5d4
refactor(cpp): route TableView's row materialization through one detail::row_at
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bdbfdb1
Adding env variable for rust
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dcd0a67
refactor(python): inherit the inferred-spec layout and derive the format tables from one source
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30713df
refactor(rust): share the raw-options pointer helper across open/open_memory/write_columns
GabrielMarquezMatte
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bdf1e1a
refactor(rust): collapse the duplicated rejection arms in the ExcelMapper derive
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1d42180
Parsing fixes
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8d8ace8
Fixing dependencies
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b783d28
fix: export xl_parse_arrow from the Windows .def files
GabrielMarquezMatte
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58e85dc
feat(cpp): add xl::parse_arrow and the ArrowTable RAII owner
GabrielMarquezMatte
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dc9afa4

Commits on Aug 22, 2026

refactor(rust): extract build_specs, shared by parse_typed and parse_arrow

GabrielMarquezMatte
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claude
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83a30ef
feat(rust): add parse_arrow behind the arrow feature

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claude
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d964b0f
docs: the Arrow export is no longer Python-only

GabrielMarquezMatte
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claude
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b3ca97e
docs(fix): use Row struct name instead of undefined Record in Arrow export examples
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dea92ca
fix: final review fixes for Arrow C++/Rust bindings branch
GabrielMarquezMatte
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7fc494b
Optimizing string allocation
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7fc8f80

Commits on Aug 24, 2026

Implementing schema inference for core C#
GabrielMarquezMatte
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c155935
feat(cli): add the excelreader dotnet tool (sheets, convert, schema)

GabrielMarquezMatte
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claude
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6106394
docs: document the excelreader CLI
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cbe5176
Using block methods
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0fe7548
Adding new types for optimized writing
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aa6b2ff
Adding nice formatting for console output
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0d31b0f
fix: numeric/bool type loss on convert, column-limit bypass, FFI leaks
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721f454

Commits on Aug 25, 2026

Creating release for cli
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0e33588
Implementing native streaming writing
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263ef64
In memory writing and C++ bindings
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c2adf1f
Creating bindings for Rust in memory and streaming writers
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a8e8777
Removing unnecessary functions
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7e705e6
Merge branch 'master' into develop
GabrielMarquezMatte
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cb0d650

Commits on Aug 26, 2026

Bump XL_ABI_VERSION
GabrielMarquezMatte
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90947c2
Fixing formatting
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47c0d6f