https://mwadams.r-universe.devRecent package updates in mwadamsR-universehttps://github.com/mwadams.pnghttps://mwadams.r-universe.devSun, 25 Oct 2026 10:42:48 GMTmatthew.adams@endjin.com (Matthew Adams)Regular expressions with the grammar and the answers of 'ECMA-262', the 'RegExp' of 'JavaScript': every flag, lookbehind, named groups, modifier groups and the Unicode properties, so that a pattern answers in R as it does in a browser or 'Node.js'. Test, match, locate, count, replace and split over character vectors, raw vectors of 'UTF-8' (which may hold a NUL) and 'UTF-16' code units (which may hold lone surrogates, as a 'JavaScript' string can). A pattern without a backreference is matched in time proportional to its size times the text. The engine is the 'corvus-regex-ecma262' 'Rust' crate.https://github.com/r-universe/corvus-dotnet/actions/runs/40190826941Sun, 25 Oct 2026 10:42:48 GMTcorvusregexecma2620.2.2successhttps://corvus-dotnet.r-universe.devhttps://github.com/corvus-dotnet/corvus-regex-ecma262-rmatthew.adams@endjin.com (Matthew Adams)Validates R values and 'JSON' text against 'JSON Schema' drafts 4, 6, 7, 2019-09 and 2020-12, with results collection and annotations. A schema is compiled once into a validator, which reads R lists and vectors in place, or parses 'JSON' text itself. The evaluator is the 'corvus-json-schema' 'Rust' crate, which passes the whole 'JSON-Schema-Test-Suite'.https://github.com/r-universe/corvus-dotnet/actions/runs/39039190029Sat, 17 Oct 2026 10:42:49 GMTcorvusjsonschema0.1.2successhttps://corvus-dotnet.r-universe.devhttps://github.com/corvus-dotnet/Corvus.JsonSchema