This project includes code from Ark (https://github.com/posit-dev/ark)
Copyright (C) 2022-2026 Posit Software, PBC
Licensed under the MIT License:

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

---

Raven's JAGS 4.3.2 built-in catalog records clean-room factual interoperability
metadata (names, roles, aliases, arities, and automatically loaded module
ownership) independently verified against the official JAGS 4.3.2 source
release:

https://downloads.sourceforge.net/project/mcmc-jags/JAGS/4.x/Source/JAGS-4.3.2.tar.gz
SHA-256: 871f556af403a7c2ce6a0f02f15cf85a572763e093d26658ebac55c4ab472fc8

JAGS is GPL-2.0-only. Raven does not copy or bundle JAGS implementation code,
source structure, manual prose, tables, examples, or comments, and does not
link or load JAGS at runtime for this feature. The reference above is retained
for provenance and reproducibility.

Raven's external diagnostic-corpus tooling can also fetch checksum-pinned
models published by the official JAGS project as a post-hoc quality holdout.
Those files are downloaded only on explicit materialization, are not committed
or distributed with Raven, and remain subject to their upstream license. The
fetch-only holdout does not inspect JAGS implementation or parser sources,
inspect manual prose, or claim that the model files were manually reviewed or
used to derive Raven's grammar. Exact artifact, revision, checksum,
license, and allowlist provenance is recorded in the committed diagnostic-corpus
manifest.

---

Raven uses tree-sitter-stan (https://github.com/WardBrian/tree-sitter-stan),
pinned at revision 86544507c3600d5c4719d98ada477123fee81983, to parse Stan
source for syntax diagnostics and as an implementation-structure reference for
Raven's independently authored JAGS grammar.

MIT License

Copyright (c) 2023 Brian Ward

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

---

Raven uses tree-sitter-r (https://github.com/r-lib/tree-sitter-r), pinned at
revision 8ac99ed1e7ad319737fc11dde20c07d1e1942383, and uses it as an
implementation-structure reference for Raven's independently authored JAGS
grammar.

MIT License

Copyright (c) 2025 tree-sitter-r authors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

---

Raven's generated Stan callable and distribution metadata is derived through
the stanc3 npm package (https://github.com/WardBrian/npm-stanc3js), version
2.39.1. Its bundled compiler identifies itself as stanc3 v2.39.0
(https://github.com/stan-dev/stanc3).

BSD 3-Clause License

Copyright (c) 2011--2018, Stan Developers and their Assignees All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Raven's external diagnostic-corpus tooling can fetch checksum-pinned models
published by the official Stan project as a post-hoc quality holdout. The models
are not committed or distributed with Raven; exact artifact, revision,
checksum, license, and allowlist provenance is recorded in the committed
diagnostic-corpus manifest. Materialized files retain their upstream licensing.

---

Raven's native lint compatibility tests adapt behavioral cases from the lintr
test suite (https://github.com/r-lib/lintr), audited at commit
603ab79e6db25d380c5ee96f35ffd6ba16d223aa.

Copyright (c) 2014-2024, James Hester
Copyright (c) 2025 lintr authors

Licensed under the MIT License:

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

---

This project includes the R and R Markdown TextMate grammars from
vscode-R-syntax (https://github.com/REditorSupport/vscode-R-syntax),
copied from commit d5fbd7aca79df03112d2d3ee306bd4bef8a5526c into
editors/vscode/syntaxes/r.tmLanguage.json and rmd.tmLanguage.json.
See editors/vscode/syntaxes/SOURCE.md for the maintainer-facing sync
notes.

Licensed under the MIT License:

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
