feat: resolve block references in obsidian markdown

This commit is contained in:
Jacky Zhao 2023-09-12 22:55:50 -07:00
parent e3b879741b
commit 6ecdcb5e24

View File

@ -1,6 +1,7 @@
import { PluggableList } from "unified" import { PluggableList } from "unified"
import { QuartzTransformerPlugin } from "../types" import { QuartzTransformerPlugin } from "../types"
import { Root, HTML, BlockContent, DefinitionContent, Code, Paragraph } from "mdast" import { Root, HTML, BlockContent, DefinitionContent, Code, Paragraph } from "mdast"
import { Element, Literal } from 'hast'
import { Replace, findAndReplace as mdastFindReplace } from "mdast-util-find-and-replace" import { Replace, findAndReplace as mdastFindReplace } from "mdast-util-find-and-replace"
import { slug as slugAnchor } from "github-slugger" import { slug as slugAnchor } from "github-slugger"
import rehypeRaw from "rehype-raw" import rehypeRaw from "rehype-raw"
@ -21,6 +22,7 @@ export interface Options {
callouts: boolean callouts: boolean
mermaid: boolean mermaid: boolean
parseTags: boolean parseTags: boolean
parseBlockReferences: boolean
enableInHtmlEmbed: boolean enableInHtmlEmbed: boolean
} }
@ -31,6 +33,7 @@ const defaultOptions: Options = {
callouts: true, callouts: true,
mermaid: true, mermaid: true,
parseTags: true, parseTags: true,
parseBlockReferences: true,
enableInHtmlEmbed: false, enableInHtmlEmbed: false,
} }
@ -121,6 +124,7 @@ const calloutLineRegex = new RegExp(/^> *\[\!\w+\][+-]?.*$/, "gm")
// (?:[-_\p{L}])+ -> non-capturing group, non-empty string of (Unicode-aware) alpha-numeric characters, hyphens and/or underscores // (?:[-_\p{L}])+ -> non-capturing group, non-empty string of (Unicode-aware) alpha-numeric characters, hyphens and/or underscores
// (?:\/[-_\p{L}]+)*) -> non-capturing group, matches an arbitrary number of tag strings separated by "/" // (?:\/[-_\p{L}]+)*) -> non-capturing group, matches an arbitrary number of tag strings separated by "/"
const tagRegex = new RegExp(/(?:^| )#((?:[-_\p{L}\d])+(?:\/[-_\p{L}\d]+)*)/, "gu") const tagRegex = new RegExp(/(?:^| )#((?:[-_\p{L}\d])+(?:\/[-_\p{L}\d]+)*)/, "gu")
const blockReferenceRegex = new RegExp(/\^([A-Za-z0-9]+)$/, "g")
export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options> | undefined> = ( export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options> | undefined> = (
userOpts, userOpts,
@ -133,29 +137,29 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
} }
const findAndReplace = opts.enableInHtmlEmbed const findAndReplace = opts.enableInHtmlEmbed
? (tree: Root, regex: RegExp, replace?: Replace | null | undefined) => { ? (tree: Root, regex: RegExp, replace?: Replace | null | undefined) => {
if (replace) { if (replace) {
visit(tree, "html", (node: HTML) => { visit(tree, "html", (node: HTML) => {
if (typeof replace === "string") { if (typeof replace === "string") {
node.value = node.value.replace(regex, replace) node.value = node.value.replace(regex, replace)
} else { } else {
node.value = node.value.replaceAll(regex, (substring: string, ...args) => { node.value = node.value.replaceAll(regex, (substring: string, ...args) => {
const replaceValue = replace(substring, ...args) const replaceValue = replace(substring, ...args)
if (typeof replaceValue === "string") { if (typeof replaceValue === "string") {
return replaceValue return replaceValue
} else if (Array.isArray(replaceValue)) { } else if (Array.isArray(replaceValue)) {
return replaceValue.map(mdastToHtml).join("") return replaceValue.map(mdastToHtml).join("")
} else if (typeof replaceValue === "object" && replaceValue !== null) { } else if (typeof replaceValue === "object" && replaceValue !== null) {
return mdastToHtml(replaceValue) return mdastToHtml(replaceValue)
} else { } else {
return substring return substring
} }
}) })
} }
}) })
}
mdastFindReplace(tree, regex, replace)
} }
mdastFindReplace(tree, regex, replace)
}
: mdastFindReplace : mdastFindReplace
return { return {
@ -353,9 +357,8 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
node.data = { node.data = {
hProperties: { hProperties: {
...(node.data?.hProperties ?? {}), ...(node.data?.hProperties ?? {}),
className: `callout ${collapse ? "is-collapsible" : ""} ${ className: `callout ${collapse ? "is-collapsible" : ""} ${defaultState === "collapsed" ? "is-collapsed" : ""
defaultState === "collapsed" ? "is-collapsed" : "" }`,
}`,
"data-callout": calloutType, "data-callout": calloutType,
"data-callout-fold": collapse, "data-callout-fold": collapse,
}, },
@ -411,11 +414,38 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
} }
}) })
} }
return plugins return plugins
}, },
htmlPlugins() { htmlPlugins() {
return [rehypeRaw] const plugins = [rehypeRaw]
if (opts.parseBlockReferences) {
plugins.push(() => {
return (tree, file) => {
file.data.blocks = {}
const validTagTypes = new Set(["blockquote", "p", "li"])
visit(tree, "element", (node, _index, _parent) => {
if (validTagTypes.has(node.tagName)) {
const last = node.children.at(-1) as Literal
if (last.value && typeof last.value === 'string') {
const matches = last.value.match(blockReferenceRegex)
if (matches && matches.length >= 1) {
last.value = last.value.slice(0, -matches[0].length)
const block = matches[0].slice(1)
node.properties = {
...node.properties,
id: block
}
file.data.blocks![block] = node
}
}
}
})
}
})
}
return plugins
}, },
externalResources() { externalResources() {
const js: JSResource[] = [] const js: JSResource[] = []
@ -454,3 +484,10 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
}, },
} }
} }
declare module "vfile" {
interface DataMap {
blocks: Record<string, Element>
}
}