Package: yaml12 0.2.0.9000

Tomasz Kalinowski

yaml12: Fast 'YAML' 1.2 Parser and Formatter

A fast, correct, safe, and ergonomic 'YAML' 1.2 parser and generator written in 'Rust'. Convert between 'YAML' and simple 'R' objects with full support for multi-document streams, tags, anchors, and aliases. Offers opt-in handlers for custom tag behavior and round-trips common 'R' data structures. Implements the 'YAML' 1.2.2 specification from the 'YAML' Language Development Team (2021) <https://yaml.org/spec/1.2.2/>. Proudly supported by Posit.

Authors:Tomasz Kalinowski [aut, cre], Posit Software, PBC [cph, fnd], Authors of the dependency Rust crates [cph]

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yaml12_0.2.0.9000.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
yaml12/json (API)

# Install 'yaml12' in R:
install.packages('yaml12', repos = c('https://posit-dev.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/posit-dev/r-yaml12/issues

Pkgdown/docs site:https://posit-dev.github.io

On CRAN:

Conda:

rustcargo

8.30 score 26 stars 5 packages 23 scripts 1.9k downloads 4 exports 0 dependencies

Last updated from:4c37a8b6ca. Checks:15 OK. Indexed: yes.

TargetResultTimeFilesSyslog
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linux-devel-x86_64OK218
source / vignettesOK213
linux-release-arm64OK206
linux-release-x86_64OK200
macos-release-arm64OK173
macos-release-x86_64OK487
macos-oldrel-arm64OK188
macos-oldrel-x86_64OK544
windows-devel-arm64OK401
windows-devel-x86_64OK289
windows-release-arm64OK393
windows-release-x86_64OK238
windows-oldrel-x86_64OK267
wasm-releaseOK144

Exports:format_yamlparse_yamlread_yamlwrite_yaml

Dependencies:

YAML in 2 Minutes: A Gentle Introduction for R Users
A first example | Comments | Collections | Sequences: YAML’s ordered collections | Mappings: key/value pairs | Scalars | Block scalars | Quoted scalars | Plain (unquoted) scalars | End-to-end example | Why YAML 1.2? | YAML 1.1 versus 1.2 quick reference | Quick notes
Rendered fromyaml-2-minute-intro.Rmdusingknitr::rmarkdown

Last update: 2026-08-24
Started: 2025-11-21

YAML Tags, Anchors, and Advanced Features with yaml12
Tags in YAML and how yaml12 handles them | Using handlers to transform tagged nodes while parsing | Post-process tags yourself | Mappings revisited: non-string keys and yaml_keys | Tagged mapping keys | Document Streams and Markers | Reading Multiple Documents | Writing Multiple Documents | Writing YAML with tags | Anchors | Debugging | (Very) Advanced Tags | Tag directives (%TAG) | TAG URIs | Core schema tags
Rendered fromyaml-tags-and-advanced-features.Rmdusingknitr::rmarkdown

Last update: 2026-08-10
Started: 2025-11-22