From 324cf497551b4b27c3a72cfc15f1ed7fabf7a63b Mon Sep 17 00:00:00 2001 From: ricautomation <240336275+ricautomation@users.noreply.github.com> Date: Thu, 16 Apr 2026 22:30:52 +0200 Subject: [PATCH] feat: Latex support (#929) * feat: implement LaTeX math rendering via KaTeX - Add katex, remark-math, and rehype-katex dependencies - Integrate KaTeX CSS with light/dark theme color overrides - Wire remark-math and rehype-katex plugins into MarkdownRenderer - Support inline ($...$) and display ($$...$$) math delimiters - Add plan and task documentation * fix(katex): display inline error messages for invalid LaTeX - Configure rehypeKatex with throwOnError: false to render errors inline - Use destructive color var for error text - Update feature documentation with verification results * chore: remove latex PR artifacts and hardcoded color fallback --------- Co-authored-by: Bohdan Triapitsyn --- bun.lock | 47 ++++++++++++++++++- packages/ui/package.json | 3 ++ .../src/components/chat/MarkdownRenderer.tsx | 4 +- packages/ui/src/index.css | 20 ++++++++ 4 files changed, 72 insertions(+), 2 deletions(-) diff --git a/bun.lock b/bun.lock index cd7761eb..dc5071b7 100644 --- a/bun.lock +++ b/bun.lock @@ -161,6 +161,7 @@ "heic2any": "^0.0.4", "html-to-image": "^1.11.13", "http-proxy-middleware": "^3.0.5", + "katex": "^0.16.21", "marked": "^17.0.3", "morphdom": "^2.7.7", "motion": "^12.23.24", @@ -170,6 +171,8 @@ "react": "^19.1.1", "react-dom": "^19.1.1", "react-syntax-highlighter": "^15.6.6", + "rehype-katex": "^7.0.1", + "remark-math": "^6.0.0", "remend": "^1.2.1", "simple-git": "^3.28.0", "sonner": "^2.0.7", @@ -1165,6 +1168,8 @@ "@types/json-schema": ["@types/json-schema@7.0.15", "", {}, "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA=="], + "@types/katex": ["@types/katex@0.16.8", "", {}, "sha512-trgaNyfU+Xh2Tc+ABIb44a5AYUpicB3uwirOioeOkNPPbmgRNtcWyDeeFRzjPZENO9Vq8gvVqfhaaXWLlevVwg=="], + 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{}, "sha512-Vw8qHK3bZM9y/P10u3Vib8o/DdkvA2OtPtZvD871QKjy74Wj1WSKFILMPRPSdUSx5RFK1arlJzEtA4PkFgnbuA=="], + "anymatch/picomatch": ["picomatch@2.3.1", "", {}, "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA=="], "babel-plugin-polyfill-corejs2/semver": ["semver@6.3.1", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA=="], @@ -2849,6 +2886,10 @@ "globby/slash": ["slash@5.1.0", "", {}, "sha512-ZA6oR3T/pEyuqwMgAKT0/hAv8oAXckzbkmR0UkUosQ+Mc4RxGoJkRmwHgHufaenlyAgE1Mxgpdcrf75y6XcnDg=="], + "hast-util-from-dom/hastscript": ["hastscript@9.0.1", "", { "dependencies": { "@types/hast": "^3.0.0", "comma-separated-tokens": "^2.0.0", "hast-util-parse-selector": "^4.0.0", "property-information": "^7.0.0", "space-separated-tokens": "^2.0.0" } }, "sha512-g7df9rMFX/SPi34tyGCyUBREQoKkapwdY/T04Qn9TDWfHhAYt4/I0gMVirzK5wEzeUqIjEB+LXC/ypb7Aqno5w=="], + + "hast-util-from-parse5/hastscript": ["hastscript@9.0.1", "", { "dependencies": { "@types/hast": "^3.0.0", "comma-separated-tokens": "^2.0.0", "hast-util-parse-selector": "^4.0.0", "property-information": "^7.0.0", "space-separated-tokens": "^2.0.0" } }, "sha512-g7df9rMFX/SPi34tyGCyUBREQoKkapwdY/T04Qn9TDWfHhAYt4/I0gMVirzK5wEzeUqIjEB+LXC/ypb7Aqno5w=="], + "hastscript/@types/hast": ["@types/hast@2.3.10", "", { "dependencies": { "@types/unist": "^2" } }, "sha512-McWspRw8xx8J9HurkVBfYj0xKoE25tOFlHGdx4MJ5xORQrMGZNqJhVQWaIbm6Oyla5kYOXtDiopzKRJzEOkwJw=="], "hastscript/comma-separated-tokens": ["comma-separated-tokens@1.0.8", "", {}, "sha512-GHuDRO12Sypu2cV70d1dkA2EUmXHgntrzbpvOB+Qy+49ypNfGgFQIC2fhhXbnyrJRynDCAARsT7Ou0M6hirpfw=="], @@ -2947,6 +2988,10 @@ "glob/minimatch/brace-expansion": ["brace-expansion@5.0.4", "", { "dependencies": { "balanced-match": "^4.0.2" } }, "sha512-h+DEnpVvxmfVefa4jFbCf5HdH5YMDXRsmKflpf1pILZWRFlTbJpxeU55nJl4Smt5HQaGzg1o6RHFPJaOqnmBDg=="], + "hast-util-from-dom/hastscript/hast-util-parse-selector": ["hast-util-parse-selector@4.0.0", "", { "dependencies": { "@types/hast": "^3.0.0" } }, "sha512-wkQCkSYoOGCRKERFWcxMVMOcYE2K1AaNLU8DXS9arxnLOUEWbOXKXiJUNzEpqZ3JOKpnha3jkFrumEjVliDe7A=="], + + "hast-util-from-parse5/hastscript/hast-util-parse-selector": ["hast-util-parse-selector@4.0.0", "", { "dependencies": { "@types/hast": "^3.0.0" } }, "sha512-wkQCkSYoOGCRKERFWcxMVMOcYE2K1AaNLU8DXS9arxnLOUEWbOXKXiJUNzEpqZ3JOKpnha3jkFrumEjVliDe7A=="], + "hastscript/@types/hast/@types/unist": ["@types/unist@2.0.11", "", {}, "sha512-CmBKiL6NNo/OqgmMn95Fk9Whlp2mtvIv+KNpQKN2F4SjvrEesubTRWGYSg+BnWZOnlCaSTU1sMpsBOzgbYhnsA=="], "mdast-util-mdx-jsx/parse-entities/@types/unist": ["@types/unist@2.0.11", "", {}, "sha512-CmBKiL6NNo/OqgmMn95Fk9Whlp2mtvIv+KNpQKN2F4SjvrEesubTRWGYSg+BnWZOnlCaSTU1sMpsBOzgbYhnsA=="], diff --git a/packages/ui/package.json b/packages/ui/package.json index 38017a6c..f39768b7 100644 --- a/packages/ui/package.json +++ b/packages/ui/package.json @@ -67,8 +67,11 @@ "heic2any": "^0.0.4", "html-to-image": "^1.11.13", "http-proxy-middleware": "^3.0.5", + "katex": "^0.16.21", "marked": "^17.0.3", "morphdom": "^2.7.7", + "rehype-katex": "^7.0.1", + "remark-math": "^6.0.0", "motion": "^12.23.24", "next-themes": "^0.4.6", "prismjs": "^1.30.0", diff --git a/packages/ui/src/components/chat/MarkdownRenderer.tsx b/packages/ui/src/components/chat/MarkdownRenderer.tsx index 419d5541..354d7238 100644 --- a/packages/ui/src/components/chat/MarkdownRenderer.tsx +++ b/packages/ui/src/components/chat/MarkdownRenderer.tsx @@ -3,6 +3,8 @@ import { renderMermaidASCII, renderMermaidSVG } from 'beautiful-mermaid'; import ReactMarkdown from 'react-markdown'; import type { Components } from 'react-markdown'; import remarkGfm from 'remark-gfm'; +import remarkMath from 'remark-math'; +import rehypeKatex from 'rehype-katex'; import { marked, type Tokens } from 'marked'; import remend from 'remend'; import { FadeInOnReveal } from './message/FadeInOnReveal'; @@ -817,7 +819,7 @@ const MarkdownBlockView: React.FC<{ components: Components; }> = React.memo(({ block, components }) => { return ( - + {block.src} ); diff --git a/packages/ui/src/index.css b/packages/ui/src/index.css index a5f32e00..142bd83b 100644 --- a/packages/ui/src/index.css +++ b/packages/ui/src/index.css @@ -1,10 +1,30 @@ @import "tailwindcss"; @import "tw-animate-css"; +@import "katex/dist/katex.min.css"; @import "./styles/design-system.css"; @import "./styles/typography.css"; @import "./styles/mobile.css"; @source "./**/*.{ts,tsx,css}"; +/* KaTeX theme overrides for light/dark mode */ +.katex { + color: var(--foreground); +} +.katex .mord, +.katex .mopen, +.katex .mclose, +.katex .mbin, +.katex .mrel, +.katex .mpunct, +.katex .mord, +.katex .mop, +.katex .minner { + color: inherit; +} +.katex-error { + color: var(--destructive); +} + @custom-variant dark (&:is(.dark *)); :root.oc-theme-switching *,