Share Blocks

Note: there's one dependency to ../../app/chat inside
This commit is contained in:
Enrico Ros
2024-02-11 12:55:30 -08:00
parent cb2b1a89b5
commit fe8b8472b7
20 changed files with 14 additions and 14 deletions
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import * as React from 'react';
import { IconButton, Tooltip } from '@mui/joy';
import { CodePenIcon } from '~/common/components/icons/3rdparty/CodePenIcon';
import { Brand } from '~/common/app.config';
// CodePen is a web-based HTML, CSS, and JavaScript code editor
const _languages = ['html', 'css', 'javascript', 'json', 'typescript'];
export function isCodePenSupported(language: string | null, isSVG: boolean) {
return isSVG || (!!language && _languages.includes(language));
}
const handleOpenInCodePen = (code: string, language: string) => {
// CodePen has 3 editors: HTML, CSS, JS - we decide here where to put the code
const hasCSS = language === 'css';
const hasJS = language ? ['javascript', 'json', 'typescript'].includes(language) : false;
const hasHTML = !hasCSS && !hasJS; // use HTML as fallback if an unanticipated frontend language is used
const form = document.createElement('form');
form.action = 'https://codepen.io/pen/define';
form.method = 'POST';
form.target = '_blank';
const payload = {
title: `${Brand.Title.Base} Code - ${new Date().toISOString()}`, // eg "GPT 2021-08-31T15:00:00.000Z"
css: hasCSS ? code : '',
html: hasHTML ? code : '',
js: hasJS ? code : '',
editors: `${hasHTML ? 1 : 0}${hasCSS ? 1 : 0}${hasJS ? 1 : 0}`, // eg '101' for HTML, JS
};
const input = document.createElement('input');
input.type = 'hidden';
input.name = 'data';
input.value = JSON.stringify(payload);
form.appendChild(input);
document.body.appendChild(form);
form.submit();
document.body.removeChild(form);
};
export function ButtonCodePen(props: { code: string, language: string }): React.JSX.Element {
return (
<Tooltip title='Open in CodePen' variant='solid'>
<IconButton variant='outlined' color='neutral' onClick={() => handleOpenInCodePen(props.code, props.language)}>
<CodePenIcon />
</IconButton>
</Tooltip>
);
}
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import * as React from 'react';
import { IconButton, Tooltip } from '@mui/joy';
// JSFiidle is a web-based HTML, CSS, and JavaScript code editor
const _languages = ['html', 'css', 'javascript', 'json', 'typescript'];
export function isJSFiddleSupported(language: string | null, code: string) {
return !!language && _languages.includes(language) && code?.length > 10;
}
const handleOpenInJsFiddle = (code: string, language: string) => {
// heuristics to assing the code to one of the blocks
const isHTML = language === 'html';
const isCSS = language === 'css';
const isJSorUnknown = !isHTML && !isCSS;
const form = document.createElement('form');
form.action = 'https://jsfiddle.net/api/post/library/pure/';
form.method = 'POST';
form.target = '_blank'; // Open in a new tab
// Dynamically determine what to populate based on language or content type
const inputHtml = document.createElement('input');
inputHtml.type = 'hidden';
inputHtml.name = 'html'; // For HTML content
inputHtml.value = isHTML ? code : '';
form.appendChild(inputHtml);
const inputCss = document.createElement('input');
inputCss.type = 'hidden';
inputCss.name = 'css'; // For CSS content
inputCss.value = isCSS ? code : '';
form.appendChild(inputCss);
const inputJs = document.createElement('input');
inputJs.type = 'hidden';
inputJs.name = 'js'; // For JavaScript content
inputJs.value = isJSorUnknown ? code : '';
form.appendChild(inputJs);
document.body.appendChild(form);
form.submit();
document.body.removeChild(form);
};
export function ButtonJsFiddle(props: { code: string, language: string }): React.JSX.Element {
return (
<Tooltip title='Open in JSFiddle' variant='solid'>
<IconButton onClick={() => handleOpenInJsFiddle(props.code, props.language)}>
JS
</IconButton>
</Tooltip>
);
}
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import * as React from 'react';
import { IconButton, Tooltip } from '@mui/joy';
import { StackBlitzIcon } from '~/common/components/icons/3rdparty/StackBlitzIcon';
import { Brand } from '~/common/app.config';
const _languages = [
'typescript',
'javascript', 'json',
'html', 'css',
// 'python',
];
// Mapping of languages to StackBlitz templates
const languageToTemplateMapping: { [language: string]: string } = {
typescript: 'typescript',
javascript: 'javascript', json: 'javascript',
html: 'html', css: 'html',
// python: 'secret-python', // webcontainers? secret-python? python?
};
// Mapping of languages to their primary file names in StackBlitz
const languageToFileExtensionMapping: { [language: string]: string } = {
typescript: 'index.ts',
javascript: 'index.js', json: 'data.json',
html: 'index.html', css: 'style.css',
// python: 'main.py',
};
export function isStackBlitzSupported(language: string | null) {
return !!language && _languages.includes(language);
}
const handleOpenInStackBlitz = (code: string, language: string, title?: string) => {
const template = languageToTemplateMapping[language] || 'javascript'; // Fallback to 'javascript'
const fileName = languageToFileExtensionMapping[language] || 'index.js'; // Fallback to 'index.js'
const projectDetails = {
files: { [fileName]: code },
template: template,
description: `${Brand.Title.Common} file created on ${new Date().toISOString()}`,
title: language == 'python' ? 'Python Starter' : title,
} as const;
const form = document.createElement('form');
form.action = 'https://stackblitz.com/run';
form.method = 'POST';
form.target = '_blank';
const addField = (name: string, value: string) => {
const input = document.createElement('input');
input.type = 'hidden';
input.name = name;
input.value = value;
form.appendChild(input);
};
Object.keys(projectDetails.files).forEach((filePath) => {
addField(`project[files][${filePath}]`, projectDetails.files[filePath]);
});
addField('project[description]', projectDetails.description);
addField('project[template]', projectDetails.template);
!!projectDetails.title && addField('project[title]', projectDetails.title);
document.body.appendChild(form);
form.submit();
document.body.removeChild(form);
};
export function ButtonStackBlitz(props: { code: string, language: string, title?: string }): React.JSX.Element {
return (
<Tooltip title='Open in StackBlitz' variant='solid'>
<IconButton variant='outlined' color='neutral' onClick={() => handleOpenInStackBlitz(props.code, props.language, props.title)}>
<StackBlitzIcon />
</IconButton>
</Tooltip>
);
}
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import * as React from 'react';
import { useQuery } from '@tanstack/react-query';
import type { SxProps } from '@mui/joy/styles/types';
import { Box, ButtonGroup, IconButton, Sheet, Tooltip, Typography } from '@mui/joy';
import ContentCopyIcon from '@mui/icons-material/ContentCopy';
import FitScreenIcon from '@mui/icons-material/FitScreen';
import HtmlIcon from '@mui/icons-material/Html';
import SchemaIcon from '@mui/icons-material/Schema';
import ShapeLineOutlinedIcon from '@mui/icons-material/ShapeLineOutlined';
import { copyToClipboard } from '~/common/util/clipboardUtils';
import type { CodeBlock } from '../blocks';
import { ButtonCodePen, isCodePenSupported } from './ButtonCodePen';
import { ButtonJsFiddle, isJSFiddleSupported } from './ButtonJSFiddle';
import { ButtonStackBlitz, isStackBlitzSupported } from './ButtonStackBlitz';
import { heuristicIsHtml, IFrameComponent } from '../RenderHtml';
import { patchSvgString, RenderCodeMermaid } from './RenderCodeMermaid';
async function fetchPlantUmlSvg(plantUmlCode: string): Promise<string | null> {
// fetch the PlantUML SVG
let text: string = '';
try {
// Dynamically import the PlantUML encoder - it's a large library that slows down app loading
const { encode: plantUmlEncode } = await import('plantuml-encoder');
// retrieve and manually adapt the SVG, to remove the background
const encodedPlantUML: string = plantUmlEncode(plantUmlCode);
const response = await fetch(`https://www.plantuml.com/plantuml/svg/${encodedPlantUML}`);
text = await response.text();
} catch (e) {
return null;
}
// validate/extract the SVG
const start = text.indexOf('<svg ');
const end = text.indexOf('</svg>');
if (start < 0 || end <= start)
throw new Error('Could not render PlantUML');
const svg = text
.slice(start, end + 6) // <svg ... </svg>
.replace('background:#FFFFFF;', ''); // transparent background
// check for syntax errors
if (svg.includes('>Syntax Error?</text>'))
throw new Error('syntax issue (it happens!). Please regenerate or change generator model.');
return svg;
}
export const overlayButtonsSx: SxProps = {
position: 'absolute', top: 0, right: 0, zIndex: 10,
display: 'flex', flexDirection: 'row', gap: 1,
opacity: 0, transition: 'opacity 0.2s',
// '& > button': {
// backgroundColor: 'background.level2',
// backdropFilter: 'blur(12px)',
// },
};
interface RenderCodeBaseProps {
codeBlock: CodeBlock,
isMobile?: boolean,
noCopyButton?: boolean,
optimizeLightweight?: boolean,
sx?: SxProps,
}
interface RenderCodeImplProps extends RenderCodeBaseProps {
highlightCode: (inferredCodeLanguage: string | null, blockCode: string) => string,
inferCodeLanguage: (blockTitle: string, code: string) => string | null,
}
function RenderCodeImpl(props: RenderCodeImplProps) {
// state
const [fitScreen, setFitScreen] = React.useState(!!props.isMobile);
const [showHTML, setShowHTML] = React.useState(false);
const [showMermaid, setShowMermaid] = React.useState(true);
const [showPlantUML, setShowPlantUML] = React.useState(true);
const [showSVG, setShowSVG] = React.useState(true);
// derived props
const {
codeBlock: { blockTitle, blockCode, complete: blockComplete },
highlightCode, inferCodeLanguage,
optimizeLightweight,
} = props;
// heuristic for language, and syntax highlight
const { highlightedCode, inferredCodeLanguage } = React.useMemo(() => {
const inferredCodeLanguage = inferCodeLanguage(blockTitle, blockCode);
const highlightedCode = highlightCode(inferredCodeLanguage, blockCode);
return { highlightedCode, inferredCodeLanguage };
}, [inferCodeLanguage, blockTitle, blockCode, highlightCode]);
// heuristics for specialized rendering
const isHTML = heuristicIsHtml(blockCode);
const renderHTML = isHTML && showHTML;
const isMermaid = blockTitle === 'mermaid' && blockComplete;
const renderMermaid = isMermaid && showMermaid;
const isPlantUML =
(blockCode.startsWith('@startuml') && blockCode.endsWith('@enduml'))
|| (blockCode.startsWith('@startmindmap') && blockCode.endsWith('@endmindmap'))
|| (blockCode.startsWith('@startsalt') && blockCode.endsWith('@endsalt'))
|| (blockCode.startsWith('@startwbs') && blockCode.endsWith('@endwbs'))
|| (blockCode.startsWith('@startgantt') && blockCode.endsWith('@endgantt'));
let renderPlantUML = isPlantUML && showPlantUML;
const { data: plantUmlHtmlData, error: plantUmlError } = useQuery({
enabled: renderPlantUML,
queryKey: ['plantuml', blockCode],
queryFn: () => fetchPlantUmlSvg(blockCode),
staleTime: 24 * 60 * 60 * 1000, // 1 day
});
renderPlantUML = renderPlantUML && (!!plantUmlHtmlData || !!plantUmlError);
const isSVG = blockCode.startsWith('<svg') && blockCode.endsWith('</svg>');
const renderSVG = isSVG && showSVG;
const canScaleSVG = renderSVG && blockCode.includes('viewBox="');
const canCodePen = blockComplete && isCodePenSupported(inferredCodeLanguage, isSVG);
const canJSFiddle = blockComplete && isJSFiddleSupported(inferredCodeLanguage, blockCode);
const canStackBlitz = blockComplete && isStackBlitzSupported(inferredCodeLanguage);
const handleCopyToClipboard = (e: React.MouseEvent) => {
e.stopPropagation();
copyToClipboard(blockCode, 'Code');
};
return (
<Box sx={{
position: 'relative', /* for overlay buttons to stick properly */
}}>
{/* Code render */}
<Box
component='code'
className={`language-${inferredCodeLanguage || 'unknown'}`}
sx={{
fontWeight: 500, whiteSpace: 'pre', // was 'break-spaces' before we implemented per-block scrolling
mx: 0, p: 1.5, // this block gets a thicker border
display: 'block',
overflowX: 'auto',
minWidth: 160,
'&:hover > .overlay-buttons': { opacity: 1 },
...(props.sx || {}),
}}>
{/* Markdown Title (File/Type) */}
{blockTitle != inferredCodeLanguage && blockTitle.includes('.') && (
<Sheet sx={{ boxShadow: 'sm', borderRadius: 'sm', mb: 1 }}>
<Typography level='title-sm' sx={{ px: 1, py: 0.5 }}>
{blockTitle}
{/*{inferredCodeLanguage}*/}
</Typography>
</Sheet>
)}
{/* Renders HTML, or inline SVG, inline plantUML rendered, or highlighted code */}
{renderHTML
? <IFrameComponent htmlString={blockCode} />
: renderMermaid
? <RenderCodeMermaid mermaidCode={blockCode} fitScreen={fitScreen} />
: <Box component='div'
dangerouslySetInnerHTML={{
__html:
renderSVG
? (patchSvgString(fitScreen, blockCode) || 'No SVG code')
: renderPlantUML
? (patchSvgString(fitScreen, plantUmlHtmlData) || (plantUmlError as string) || 'No PlantUML rendering.')
: highlightedCode,
}}
sx={{
...(renderSVG ? { lineHeight: 0 } : {}),
...(renderPlantUML ? { textAlign: 'center' } : {}),
}}
/>}
{/* Buttons */}
<Box className='overlay-buttons' sx={{ ...overlayButtonsSx, p: 0.5 }}>
{isHTML && (
<Tooltip title={optimizeLightweight ? null : renderHTML ? 'Hide' : 'Show Web Page'}>
<IconButton variant={renderHTML ? 'solid' : 'soft'} color='danger' onClick={() => setShowHTML(!showHTML)}>
<HtmlIcon />
</IconButton>
</Tooltip>
)}
{isMermaid && (
<Tooltip title={optimizeLightweight ? null : renderMermaid ? 'Show Code' : 'Render Mermaid'}>
<IconButton variant={renderMermaid ? 'solid' : 'soft'} onClick={() => setShowMermaid(!showMermaid)}>
<SchemaIcon />
</IconButton>
</Tooltip>
)}
{isPlantUML && (
<Tooltip title={optimizeLightweight ? null : renderPlantUML ? 'Show Code' : 'Render PlantUML'}>
<IconButton variant={renderPlantUML ? 'solid' : 'soft'} onClick={() => setShowPlantUML(!showPlantUML)}>
<SchemaIcon />
</IconButton>
</Tooltip>
)}
{isSVG && (
<Tooltip title={optimizeLightweight ? null : renderSVG ? 'Show Code' : 'Render SVG'}>
<IconButton variant={renderSVG ? 'solid' : 'soft'} onClick={() => setShowSVG(!showSVG)}>
<ShapeLineOutlinedIcon />
</IconButton>
</Tooltip>
)}
{((isMermaid && showMermaid) || (isPlantUML && showPlantUML) || (isSVG && showSVG && canScaleSVG)) && (
<Tooltip title={optimizeLightweight ? null : fitScreen ? 'Original Size' : 'Fit Screen'}>
<IconButton variant={fitScreen ? 'solid' : 'soft'} onClick={() => setFitScreen(on => !on)}>
<FitScreenIcon />
</IconButton>
</Tooltip>
)}
{(canJSFiddle || canCodePen || canStackBlitz) && (
<ButtonGroup aria-label='Open code in external editors' sx={{ cornerRadius: 'md' }}>
{canJSFiddle && <ButtonJsFiddle code={blockCode} language={inferredCodeLanguage!} />}
{canCodePen && <ButtonCodePen code={blockCode} language={inferredCodeLanguage!} />}
{canStackBlitz && <ButtonStackBlitz code={blockCode} title={blockTitle} language={inferredCodeLanguage!} />}
</ButtonGroup>
)}
{props.noCopyButton !== true && (
<Tooltip title={optimizeLightweight ? null : 'Copy Code'}>
<IconButton variant='soft' onClick={handleCopyToClipboard}>
<ContentCopyIcon />
</IconButton>
</Tooltip>
)}
</Box>
</Box>
</Box>
);
}
// Dynamically import the heavy prism functions
const RenderCodeDynamic = React.lazy(async () => {
// Dynamically import the code highlight functions
const { highlightCode, inferCodeLanguage } = await import('./codePrism');
return {
default: (props: RenderCodeBaseProps) =>
<RenderCodeImpl highlightCode={highlightCode} inferCodeLanguage={inferCodeLanguage} {...props} />,
};
});
export function RenderCode(props: RenderCodeBaseProps) {
return (
<React.Suspense fallback={<Box component='code' sx={{ p: 1.5, display: 'block', ...props.sx }} />}>
<RenderCodeDynamic {...props} />
</React.Suspense>
);
}
export const RenderCodeMemo = React.memo(RenderCode);
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import * as React from 'react';
import { create } from 'zustand';
import { Box } from '@mui/joy';
import { appTheme } from '~/common/app.theme';
import { isBrowser } from '~/common/util/pwaUtils';
/**
* We are loading Mermaid from the CDN (and spending all the work to dynamically load it
* and strong type it), because the Mermaid dependencies (npm i mermaid) are too heavy
* and would slow down development for everyone.
*
* If you update this file, also make sure the interfaces/type definitions and initialization
* options are updated accordingly.
*/
const MERMAID_CDN_FILE: string = 'https://cdn.jsdelivr.net/npm/mermaid@10.6.1/dist/mermaid.min.js';
interface MermaidAPI {
initialize: (config: any) => void;
render: (id: string, text: string, svgContainingElement?: Element) => Promise<{ svg: string, bindFunctions?: (element: Element) => void }>;
}
// extend the Window interface, to allow for the mermaid API to be found
declare global {
// noinspection JSUnusedGlobalSymbols
interface Window {
mermaid: MermaidAPI;
}
}
interface MermaidAPIStore {
mermaidAPI: MermaidAPI | null,
loadingError: string | null,
}
const useMermaidStore = create<MermaidAPIStore>()(
() => ({
mermaidAPI: null,
loadingError: null,
}),
);
let loadingStarted: boolean = false;
let loadingError: string | null = null;
function loadMermaidFromCDN() {
if (isBrowser && !loadingStarted) {
loadingStarted = true;
const script = document.createElement('script');
script.src = MERMAID_CDN_FILE;
script.defer = true;
script.onload = () => {
useMermaidStore.setState({
mermaidAPI: initializeMermaid(window.mermaid),
loadingError: null,
});
};
script.onerror = () => {
useMermaidStore.setState({
mermaidAPI: null,
loadingError: `Script load error for ${script.src}`,
});
};
document.head.appendChild(script);
}
}
function initializeMermaid(mermaidAPI: MermaidAPI): MermaidAPI {
mermaidAPI.initialize({
startOnLoad: false,
// gfx options
fontFamily: appTheme.fontFamily.code,
altFontFamily: appTheme.fontFamily.body,
// style configuration
htmlLabels: true,
securityLevel: 'loose',
theme: 'forest',
// per-chart configuration
mindmap: { useMaxWidth: false },
flowchart: { useMaxWidth: false },
sequence: { useMaxWidth: false },
timeline: { useMaxWidth: false },
class: { useMaxWidth: false },
state: { useMaxWidth: false },
pie: { useMaxWidth: false },
er: { useMaxWidth: false },
gantt: { useMaxWidth: false },
gitGraph: { useMaxWidth: false },
});
return mermaidAPI;
}
function useMermaidLoader() {
const { mermaidAPI } = useMermaidStore();
React.useEffect(() => {
if (!mermaidAPI)
loadMermaidFromCDN();
}, [mermaidAPI]);
return { mermaidAPI, isSuccess: !!mermaidAPI, isLoading: loadingStarted, error: loadingError };
}
export function RenderCodeMermaid(props: { mermaidCode: string, fitScreen: boolean }) {
// state
const [_svgCode, setSvgCode] = React.useState<string | null>(null);
const hasUnmounted = React.useRef(false);
const mermaidContainerRef = React.useRef<HTMLDivElement>(null);
// external state
const { mermaidAPI, error: mermaidError } = useMermaidLoader();
// [effect] re-render on code changes
React.useEffect(() => {
if (!mermaidAPI)
return;
const updateSvgCode = () => {
const elementId = `mermaid-${Math.random().toString(36).substring(2, 9)}`;
mermaidAPI
.render(elementId, props.mermaidCode, mermaidContainerRef.current!)
.then(({ svg }) => {
if (mermaidContainerRef.current && !hasUnmounted.current) {
setSvgCode(svg);
// bindFunctions?.(mermaidContainerRef.current);
}
})
.catch((error) =>
console.warn('The AI-generated Mermaid code is invalid, please try again. Details below:\n >>', error.message),
);
};
// strict-mode de-bounce, plus watch for unmounts
hasUnmounted.current = false;
const timeout = setTimeout(updateSvgCode, 0);
return () => {
hasUnmounted.current = true;
clearTimeout(timeout);
};
}, [mermaidAPI, props.mermaidCode]);
// render errors when loading Mermaid. for syntax errors, the Error SVG will be rendered in-place
if (mermaidError)
return <div>Error: {mermaidError}</div>;
return (
<Box
component='div'
ref={mermaidContainerRef}
dangerouslySetInnerHTML={{ __html: patchSvgString(props.fitScreen, _svgCode) || 'Loading Diagram...' }}
/>
);
}
export function patchSvgString(fitScreen: boolean, svgCode?: string | null): string | null {
return fitScreen ? svgCode?.replace('<svg ', `<svg style="width: 100%; height: 100%; object-fit: contain" `) || null : svgCode || null;
}
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import Prism from 'prismjs';
// per-language JS plugins
import 'prismjs/components/prism-bash';
import 'prismjs/components/prism-css';
import 'prismjs/components/prism-java';
import 'prismjs/components/prism-javascript';
import 'prismjs/components/prism-json';
import 'prismjs/components/prism-markdown';
import 'prismjs/components/prism-mermaid';
import 'prismjs/components/prism-plant-uml';
import 'prismjs/components/prism-python';
import 'prismjs/components/prism-typescript';
// NOTE: must match Prism components imports
const hPrismLanguages = ['bash', 'css', 'java', 'javascript', 'json', 'markdown', 'mermaid', 'plant-uml', 'python', 'typescript'];
const hFileExtensionsMap: { [key: string]: string } = {
cs: 'csharp', html: 'html', java: 'java', js: 'javascript', json: 'json', jsx: 'javascript',
md: 'markdown', mmd: 'mermaid', py: 'python', sh: 'bash', ts: 'typescript', tsx: 'typescript', xml: 'xml',
};
const hCodeIncipitMap: { starts: string[], language: string }[] = [
{ starts: ['<!DOCTYPE html', '<html'], language: 'html' },
{ starts: ['<'], language: 'xml' },
{ starts: ['from '], language: 'python' },
{ starts: ['import ', 'export '], language: 'typescript' }, // or python
{ starts: ['interface ', 'function '], language: 'typescript' }, // ambiguous
{ starts: ['package '], language: 'java' },
{ starts: ['using '], language: 'csharp' },
{ starts: ['@startuml', '@startmindmap', '@startsalt', '@startwbs', '@startgantt'], language: 'plant-uml' },
];
export function inferCodeLanguage(blockTitle: string, code: string): string | null {
// if we have a block title, use it to infer the language
if (blockTitle) {
// single word: assume it's the syntax highlight language
if (!blockTitle.includes('.'))
return hFileExtensionsMap.hasOwnProperty(blockTitle) ? hFileExtensionsMap[blockTitle] : blockTitle;
// file extension: map back to a language
const extension = blockTitle.split('.').pop();
if (extension && hFileExtensionsMap.hasOwnProperty(extension))
return hFileExtensionsMap[extension];
}
// or, based on the first line of code, return the language
for (const codeIncipit of hCodeIncipitMap)
if (codeIncipit.starts.some((start) => code.startsWith(start)))
return codeIncipit.language;
// or, use Prism with language tokenization to and-detect the language
// FIXME: this is a very poor way to detect the language, as it's tokenizing it in any language
// and getting the one with the most tokens - which may as well be the wrong one
let detectedLanguage: string | null = null;
let maxTokens = 0;
hPrismLanguages.forEach((language) => {
const grammar = Prism.languages[language];
// Load the specified language if it's not loaded yet
// NOTE: this is commented out because it inflates the size of the bundle by 200k
// if (!Prism.languages[language]) {
// try {
// require(`prismjs/components/prism-${language}`);
// } catch (e) {
// console.warn(`Prism language '${language}' not found, falling back to 'typescript'`);
// }
// }
const tokens = Prism.tokenize(code, grammar);
const tokenCount = tokens.filter((token) => typeof token !== 'string').length;
if (tokenCount > maxTokens) {
maxTokens = tokenCount;
detectedLanguage = language;
}
});
return detectedLanguage;
}
export function highlightCode(inferredCodeLanguage: string | null, blockCode: string): string {
// NOTE: to save power, we could skip highlighting until the block is complete (future feature)
const safeHighlightLanguage = inferredCodeLanguage || 'typescript';
return Prism.highlight(
blockCode,
Prism.languages[safeHighlightLanguage] || Prism.languages.typescript,
safeHighlightLanguage,
);
}