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More information: https://www.jsdelivr.com/using-sri-with-dynamic-files\n */\n","import type { Node as ProseMirrorNode } from 'prosemirror-model'\nimport type { Transaction } from 'prosemirror-state'\nimport type { Decoration } from 'prosemirror-view'\n\n/**\n * Represents a cache of doc positions to the node and decorations at that position\n */\nexport class DecorationCache {\n private cache: Map\n\n constructor(\n cache?: Map,\n ) {\n this.cache = new Map(cache)\n }\n\n /**\n * Gets the cache entry at the given doc position, or null if it doesn't exist\n * @param pos The doc position of the node you want the cache for\n */\n get(pos: number) {\n return this.cache.get(pos)\n }\n\n /**\n * Sets the cache entry at the given position with the give node/decoration\n * values\n * @param pos The doc position of the node to set the cache for\n * @param node The node to place in cache\n * @param decorations The decorations to place in cache\n */\n set(pos: number, node: ProseMirrorNode, decorations: Decoration[]): void {\n if (pos < 0) {\n return\n }\n\n this.cache.set(pos, [node, decorations])\n }\n\n /**\n * Removes the value at the oldPos (if it exists) and sets the new position to\n * the given values\n * @param oldPos The old node position to overwrite\n * @param newPos The new node position to set the cache for\n * @param node The new node to place in cache\n * @param decorations The new decorations to place in cache\n */\n private replace(\n oldPos: number,\n newPos: number,\n node: ProseMirrorNode,\n decorations: Decoration[],\n ): void {\n this.remove(oldPos)\n this.set(newPos, node, decorations)\n }\n\n /**\n * Removes the cache entry at the given position\n * @param pos The doc position to remove from cache\n */\n remove(pos: number): void {\n this.cache.delete(pos)\n }\n\n /**\n * Invalidates the cache by removing all decoration entries on nodes that have\n * changed, updating the positions of the nodes that haven't and removing all\n * the entries that have been deleted; NOTE: this does not affect the current\n * cache, but returns an entirely new one\n * @param tr A transaction to map the current cache to\n */\n invalidate(tr: Transaction): DecorationCache {\n const returnCache = new DecorationCache(this.cache)\n const mapping = tr.mapping\n\n this.cache.forEach(([node, decorations], pos) => {\n if (pos < 0) {\n return\n }\n\n const result = mapping.mapResult(pos)\n const mappedNode = tr.doc.nodeAt(result.pos)\n\n if (result.deleted || !mappedNode?.eq(node)) {\n returnCache.remove(pos)\n } else if (pos !== result.pos) {\n // update the decorations' from/to values to match the new node position\n const updatedDecorations = decorations\n .map((d): Decoration | null => {\n // @ts-expect-error: internal api\n // eslint-disable-next-line @typescript-eslint/no-unsafe-call\n return d.map(mapping, 0, 0) as Decoration | null\n })\n .filter((d): d is Decoration => d != null)\n returnCache.replace(pos, result.pos, mappedNode, updatedDecorations)\n }\n })\n\n return returnCache\n }\n}\n","import type { Node as ProseMirrorNode } from 'prosemirror-model'\nimport { Plugin, PluginKey } from 'prosemirror-state'\nimport { type Decoration, DecorationSet } from 'prosemirror-view'\n\nimport { DecorationCache } from './cache'\nimport type { LanguageExtractor, Parser } from './types'\n\n/**\n * Describes the current state of the highlightPlugin\n */\nexport interface HighlightPluginState {\n cache: DecorationCache\n decorations: DecorationSet | undefined\n promises: Promise[]\n}\n\n/**\n * Creates a plugin that highlights the contents of all nodes (via Decorations)\n * with a type passed in blockTypes\n */\nexport function createHighlightPlugin({\n parser,\n nodeTypes = ['code_block', 'codeBlock'],\n languageExtractor = (node) => node.attrs.language as string | undefined,\n}: {\n /**\n * A function that returns an array of decorations for the given node text\n * content, language, and position.\n */\n parser: Parser\n\n /**\n * An array containing all the node type name to target for highlighting.\n *\n * @default ['code_block', 'codeBlock']\n */\n nodeTypes?: string[]\n\n /**\n * A function that returns the language string to use when highlighting that\n * node. By default, it returns `node.attrs.language`.\n */\n languageExtractor?: LanguageExtractor\n}): Plugin {\n const key = new PluginKey('prosemirror-highlight')\n\n return new Plugin({\n key,\n state: {\n init(_, instance) {\n const cache = new DecorationCache()\n const [decorations, promises] = calculateDecoration(\n instance.doc,\n parser,\n nodeTypes,\n languageExtractor,\n cache,\n )\n\n return { cache, decorations, promises }\n },\n apply: (tr, data) => {\n const cache = data.cache.invalidate(tr)\n const refresh = !!tr.getMeta('prosemirror-highlight-refresh')\n\n if (!tr.docChanged && !refresh) {\n const decorations = data.decorations?.map(tr.mapping, tr.doc)\n const promises = data.promises\n return { cache, decorations, promises }\n }\n\n const [decorations, promises] = calculateDecoration(\n tr.doc,\n parser,\n nodeTypes,\n languageExtractor,\n cache,\n )\n return { cache, decorations, promises }\n },\n },\n view: (view) => {\n const promises = new Set>()\n\n // Refresh the decorations when all promises resolve\n const refresh = () => {\n if (promises.size > 0 || view.isDestroyed) {\n return\n }\n const tr = view.state.tr.setMeta('prosemirror-highlight-refresh', true)\n view.dispatch(tr)\n }\n\n const check = () => {\n const state = key.getState(view.state)\n\n for (const promise of state?.promises ?? []) {\n promises.add(promise)\n promise\n .then(() => {\n promises.delete(promise)\n refresh()\n })\n .catch((error) => {\n console.error(\n '[prosemirror-highlight] Error resolving parser:',\n error,\n )\n promises.delete(promise)\n })\n }\n }\n\n check()\n\n return {\n update: () => {\n check()\n },\n }\n },\n props: {\n decorations(this, state) {\n return this.getState(state)?.decorations\n },\n },\n })\n}\n\nfunction calculateDecoration(\n doc: ProseMirrorNode,\n parser: Parser,\n nodeTypes: string[],\n languageExtractor: LanguageExtractor,\n cache: DecorationCache,\n): [DecorationSet | undefined, Promise[]] {\n const allDecorations: Decoration[][] = []\n const promises: Promise[] = []\n const nodes = collectCodeBlocks(doc, nodeTypes)\n\n try {\n for (const [node, pos] of nodes) {\n const language = languageExtractor(node)\n const cached = cache.get(pos)\n\n if (cached) {\n const [_, decorations] = cached\n if (decorations.length > 0) {\n allDecorations.push(decorations)\n }\n } else {\n const parsed = parser({\n content: node.textContent,\n language: language || undefined,\n pos,\n size: node.nodeSize,\n })\n if (parsed && Array.isArray(parsed)) {\n cache.set(pos, node, parsed)\n if (parsed.length > 0) {\n allDecorations.push(parsed)\n }\n } else if (parsed instanceof Promise) {\n cache.remove(pos)\n promises.push(parsed)\n } else {\n console.error(\n `[prosemirror-highlight] Invalid parser result:`,\n parsed,\n )\n }\n }\n }\n } catch (error) {\n console.error(`[prosemirror-highlight] Error parsing code blocks:`, error)\n }\n\n const decorationSet =\n allDecorations.length > 0\n ? DecorationSet.create(doc, allDecorations.flat())\n : undefined\n return [decorationSet, promises]\n}\n\nfunction collectCodeBlocks(\n doc: ProseMirrorNode,\n nodeTypes: string[],\n): Array<[node: ProseMirrorNode, pos: number]> {\n const nodes: Array<[node: ProseMirrorNode, pos: number]> = []\n doc.descendants((node, pos) => {\n if (node.type.inlineContent && nodeTypes.includes(node.type.name)) {\n nodes.push([node, pos])\n return false\n }\n })\n return nodes\n}\n","import { Decoration } from 'prosemirror-view'\n\nimport type { Parser, ParserOptions } from './types'\n\n/**\n * Returns a new parser that adds line numbers to the parsed decorations.\n *\n * Line numbers are added as `` elements with\n * the line number as the text content.\n */\nexport function withLineNumbers(parser: Parser): Parser {\n return function parserWithLineNumbers(options: ParserOptions) {\n const parsed = parser(options)\n if (parsed && Array.isArray(parsed)) {\n const { pos, content } = options\n const start = pos + 1\n const lineStarts = [start]\n for (const match of content.matchAll(/\\r?\\n/g)) {\n lineStarts.push(start + match.index + match[0].length)\n }\n const decorations: Decoration[] = Array.from(\n lineStarts,\n (lineStart, index) => createLineStartWidget(lineStart, index + 1),\n )\n return [...decorations, ...parsed]\n }\n return parsed\n }\n}\n\nexport function createLineStartWidget(\n from: number,\n lineNumber: number,\n): Decoration {\n return Decoration.widget(from, () => createLineStartSpan(lineNumber), {\n key: 'line-number',\n side: -20,\n })\n}\n\nfunction createLineStartSpan(lineNumber: number) {\n const span = document.createElement('span')\n span.className = 'line-number'\n span.textContent = lineNumber.toString()\n return span\n}\n"]}