larry77.r-universe.dev

[larry77] marcxmlr 0.4.0

lorenzo.isella@gmail.com (Lorenzo Isella) — Wed, 14 Oct 2026 15:46:46 GMT

Parses Machine-Readable Cataloging ('MARC 21') XML into a canonical tidy long representation while preserving leaders, control fields, data fields, indicators, repeated fields, repeated subfields, and source order. Provides in-memory reading, bounded-memory conversion to 'Parquet', and reconstruction of MARCXML from canonical data. Supports structural diagnostics for in-memory and 'Arrow'-backed representations, optional recovery from malformed MARC records, and local parallel processing.

[larry77] summarisebig 0.1.0

lorenzo.isella@gmail.com (Lorenzo Isella) — Fri, 11 Sep 2026 20:18:45 GMT

Provides a 'dplyr'-like interface for grouped summaries on large 'arrow' datasets. Complete summaries are attempted in 'arrow' first. When a result can be reconstructed from 'arrow'-computable sufficient statistics, an explicit MapReduce-style reduction and 'R' finalization strategy is available. For arbitrary 'R' functions that require raw group observations, complete groups are materialized in bounded chunks, with optional parallel execution and shared-memory processing. The MapReduce strategy follows the programming model described by Dean and Ghemawat (2008) .

[larry77] xmlrectr 0.0.0.9000

lorenzo.isella@gmail.com (Lorenzo Isella) — Tue, 08 Sep 2026 09:08:34 GMT

Converts arbitrary XML into canonical node tables and analysis-friendly rectangular outputs without requiring a vocabulary-specific parser. Supports conservative structure proposals, explicit reusable profiles, advisory XSD inspection, bounded streaming, CSV and Parquet output, an analyst-oriented single-table projection, and record-level parallel execution with automatic scheduling. The native implementation uses libxml2 for structural acceleration while the R implementation remains the semantic reference.