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frontmatter: Parse Front Matter from Documents

Extracts and parses structured metadata ('YAML' or 'TOML') from the beginning of text documents. Front matter is a common pattern in 'Quarto' documents, 'R Markdown' documents, static site generators, documentation systems, content management tools and even 'Python' and 'R' scripts where metadata is placed at the top of a document, separated from the main content by delimiter fences.

Version: 0.1.0
Imports: cpp11, rlang, tomledit, yaml12
LinkingTo: cpp11
Suggests: testthat (≥ 3.0.0), withr, yaml
Published: 2026-01-14
DOI: 10.32614/CRAN.package.frontmatter (may not be active yet)
Author: Garrick Aden-Buie ORCID iD [aut, cre], Posit Software, PBC ROR ID [cph, fnd]
Maintainer: Garrick Aden-Buie <garrick at posit.co>
BugReports: https://github.com/posit-dev/frontmatter/issues
License: MIT + file LICENSE
URL: https://github.com/posit-dev/frontmatter, https://posit-dev.github.io/frontmatter/
NeedsCompilation: yes
Materials: README, NEWS
CRAN checks: frontmatter results

Documentation:

Reference manual: frontmatter.html , frontmatter.pdf

Downloads:

Package source: frontmatter_0.1.0.tar.gz
Windows binaries: r-devel: not available, r-release: frontmatter_0.1.0.zip, r-oldrel: not available
macOS binaries: r-release (arm64): frontmatter_0.1.0.tgz, r-oldrel (arm64): frontmatter_0.1.0.tgz, r-release (x86_64): frontmatter_0.1.0.tgz, r-oldrel (x86_64): frontmatter_0.1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=frontmatter to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.