refcheck

Tiny helper to check reference-sign consistency in patent applications (German and English).

A browser-based Reference Sign Checker: paste a patent description or claim set and it flags inconsistent sign↔term mappings, article-usage errors, missing/orphaned signs, claims-parentheses issues, and non-sequential claim numbering.

Live app

Served via GitHub Pages — just open the link, nothing to install: https://newblimp.github.io/refcheck/

Development

The app is a React + Vite project. Source lives in src/; the production site is built to dist/ and published to GitHub Pages automatically by .github/workflows/deploy.yml on every push to main.

npm install      # install dependencies (first time only)
npm run dev      # start the dev server with hot reload
npm test         # run the unit tests (Vitest)
npm run build    # produce the production bundle in dist/
npm run preview  # serve the production build locally

Note: because the app uses native ES modules, open it through the dev/preview server (or the live Page) — opening index.html directly from the filesystem won't work.

Project layout

Path	Purpose
index.html	Vite entry (HTML shell, sets the initial theme)
src/main.jsx	Mounts the React app
src/styles.css	All styles (CSS custom properties for theming)
src/i18n.js	English/German UI strings
src/logic/	Pure, framework-free logic (tokenizer, stemming, extraction, cross-reference, HTML builder, reference list) — covered by tests
src/hooks/	React hooks (useDebounced)
src/components/	React components (App, SignCard, ArtCard, BareCard, NumCard, RefList, CtxMenu)
src/**/*.test.js(x)	Vitest unit tests (logic in node, *.ui.test.jsx in jsdom)

See CLAUDE.md for a deeper architecture overview.