jss-style-checker 1.1.0

Style checker for manuscripts submitted to the Journal of Statistical Software (JSS).

jss-style-checker

Style checker for manuscripts submitted to the Journal of Statistical Software (JSS).

Try it in your browser — no install, nothing uploaded. Pick a folder and it checks the .tex/.ltx/.bib/.Rnw/.Rmd files on the spot, entirely client-side via WebAssembly.

The badges above are refreshed by CI on every push to main: shields.io endpoint JSON derived from the spec-002 precision-history DB and the spec-017 hand-annotated recall corpus.

The package ships:

• jss-lint, a command-line entry point.
• texlint, an importable Python library.
• eval-jss, a companion CLI that measures per-rule precision against a pinned corpus of real JSS manuscripts (see eval/README.md and specs/002-eval-jss-harness/quickstart.md).

The same engine also ships as a Rust port, compiled five ways: a standalone binary (jsslint-cli on crates.io), a browser/npm WASM package (jsslint-wasm — the in-browser checker above, source at web/), a native Python extension (jsslint on PyPI), an R package (jsslintr), and a zero-install VS Code extension that runs the WASM in-process (vscode-extension/) — see rust/README.md for how to use each (including how to build and run the web app locally). Both engines produce byte-identical output; that parity is CI-enforced (Constitution §XIII).

Install (development)

python3 -m venv .venv
.venv/bin/pip install -e '.[dev]'
.venv/bin/pip install -e tests/fixtures/stub_journal   # registers the second-journal test fixture

Quick start

Run the linter against a LaTeX (or Sweave .Rnw / R Markdown .Rmd) manuscript and its bibliography. Linting a root file automatically follows \input/\include/\subfile/\bibliography references and lints the whole reachable project (--no-resolve restricts to the named files):

jss-lint paper.tex refs.bib              # author mode, terminal output
jss-lint --mode reviewer paper.tex       # per-category PASS/FAIL/SKIPPED table
jss-lint --output json paper.tex > r.json  # byte-deterministic JSON
jss-lint --output html --mode reviewer paper.tex > r.html
jss-lint --ignore-rules JSS-SRC-001 paper.tex   # suppress a rule
jss-lint --fail-on error paper.tex       # warnings/advisories don't flip CI red
jss-lint --min-confidence medium paper.tex  # skip low-precision heuristic rules
jss-lint --crossref refs.bib             # online: verify missing DOIs
jss-lint --crossref --fix refs.bib       # online: populate missing DOIs

Online DOI lookup (--crossref)

By default the linter is fully offline, so JSS-REFS-003 can only advise that a citeable entry declares a doi field — it can't know whether one exists. Pass --crossref to verify online: each doi-less @article / @book / @inproceedings is looked up on Crossref (matched by title + first-author surname + year), and each CRAN-package @manual gets its registered 10.32614/CRAN.package.* DOI. JSS-REFS-003 then reports the exact DOI to add and suppresses the advisory when no DOI exists. Combine with --fix to write the DOIs straight into the .bib. Add --crossref-mailto [e-mail] to use Crossref's faster polite pool. Needs network access; wrong-match-safe (a mismatched year or author is never written).

Every rule carries a measured-precision confidence tier (high / medium / low), sourced from the eval corpus precision history. Medium/low findings are marked in the terminal table and in the JSON confidence field; --min-confidence skips rules below the floor, and --fail-on sets the severity that flips the exit code (default warning: info-severity advisories are reported but don't fail the run). Both are also settable in .jss-lint.toml (min_confidence, fail_on).

To silence a single false positive in place (instead of disabling the whole rule project-wide), add an inline comment on the offending line — or on its own line directly above it:

The sandwich estimator is robust.  % jss-lint: ignore JSS-MARKUP-002
% jss-lint: ignore JSS-CAP-002
\section{Changes from Version 1.2 to 1.3}

A bare % jss-lint: ignore suppresses every rule on the target line; free text after the rule ids is treated as rationale. Parse errors (JSS-PARSE-000) are never suppressed.

Exit codes: 0 clean · 1 violations found · 2 tool could not complete (unknown journal, missing file, parse error, unsupported extension).

For the full invocation contract see specs/001-linter-foundation/contracts/cli.md; for the JSON shape see specs/001-linter-foundation/contracts/json-output.md; for a developer walkthrough see specs/001-linter-foundation/quickstart.md.

Journals

jss-lint discovers journals via the texlint.journals entry-point group. The jss journal ships with the package; third-party packages can register additional journals with zero edits to this repo (Constitution §IV).

The jss journal ships 62 rules across 16 categories — full catalogue with descriptions, severity, JSS-guide §, example violations, and example fixes:

→ specs/003-jss-rule-catalogue/catalogue.md

The catalogue is generated from catalogue.yaml; edit the YAML and re-render with python -m tools.render_catalogue. From the CLI, jss-lint explain lists every rule one-line at a time; jss-lint explain <RULE-ID> shows the full explanation for one rule.

The eval-jss precision harness (spec 002) is shipped — it enforces Constitution §VI empirically against the pinned corpus under examples/ and the manifest at eval/corpus-manifest.csv. Precision trends land in eval/report.csv as an append-only history; diff it with git log -p eval/report.csv.

Development

Helper scripts activate the project .venv and forward their arguments:

• scripts/vpy.sh — run Python.
• scripts/vlint.sh — run ruff (default: ruff check .).
• scripts/vtest.sh — run pytest. Supports --tail=N and --grep=PATTERN to replace | tail / | grep idioms.

Pre-commit hook — .githooks/pre-commit runs ruff check ., the pytest suite (SKIP_PYTEST=1 to opt out per commit), and — when Rust files are staged — cargo fmt --all --check, so the CI gates never see a dirty commit. Activate it once per clone:

git config core.hooksPath .githooks

The hook is lenient when a tool isn't on PATH (skips with a warning) so it doesn't block users who haven't yet run pip install -e .[dev]. See CONTRIBUTING.md for the full gate list.

Mandatory gate (Constitution §IX — 100% branch coverage on every rule module):

.venv/bin/python -m pytest tests/unit/journals/jss/ \
  --cov=src/texlint/journals/jss/rules --cov-branch --cov-fail-under=100

License

MIT — see LICENSE.