Jacky Zhao
2023-12-18 ea6208c1f0de232ebe7947f257641aab9577ddb7
quartz/plugins/transformers/ofm.ts
@@ -1,8 +1,7 @@
import { PluggableList } from "unified"
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, Root as HtmlRoot } from "hast"
import { Replace, findAndReplace as mdastFindReplace } from "mdast-util-find-and-replace"
import { ReplaceFunction, findAndReplace as mdastFindReplace } from "mdast-util-find-and-replace"
import { slug as slugAnchor } from "github-slugger"
import rehypeRaw from "rehype-raw"
import { visit } from "unist-util-visit"
@@ -15,6 +14,7 @@
import { toHtml } from "hast-util-to-html"
import { PhrasingContent } from "mdast-util-find-and-replace/lib"
import { capitalize } from "../../util/lang"
import { PluggableList } from "unified"
export interface Options {
  comments: boolean
@@ -136,39 +136,15 @@
    return toHtml(hast, { allowDangerousHtml: true })
  }
  const findAndReplace = opts.enableInHtmlEmbed
    ? (tree: Root, regex: RegExp, replace?: Replace | null | undefined) => {
        if (replace) {
          visit(tree, "html", (node: HTML) => {
            if (typeof replace === "string") {
              node.value = node.value.replace(regex, replace)
            } else {
              node.value = node.value.replaceAll(regex, (substring: string, ...args) => {
                const replaceValue = replace(substring, ...args)
                if (typeof replaceValue === "string") {
                  return replaceValue
                } else if (Array.isArray(replaceValue)) {
                  return replaceValue.map(mdastToHtml).join("")
                } else if (typeof replaceValue === "object" && replaceValue !== null) {
                  return mdastToHtml(replaceValue)
                } else {
                  return substring
                }
              })
            }
          })
        }
        mdastFindReplace(tree, regex, replace)
      }
    : mdastFindReplace
  return {
    name: "ObsidianFlavoredMarkdown",
    textTransform(_ctx, src) {
      // pre-transform blockquotes
      if (opts.callouts) {
        if (src instanceof Buffer) {
        src = src.toString()
        }
        src = src.replaceAll(calloutLineRegex, (value) => {
          // force newline after title of callout
          return value + "\n> "
@@ -177,7 +153,10 @@
      // pre-transform wikilinks (fix anchors to things that may contain illegal syntax e.g. codeblocks, latex)
      if (opts.wikilinks) {
        if (src instanceof Buffer) {
        src = src.toString()
        }
        src = src.replaceAll(wikilinkRegex, (value, ...capture) => {
          const [rawFp, rawHeader, rawAlias] = capture
          const fp = rawFp ?? ""
@@ -194,10 +173,17 @@
    },
    markdownPlugins() {
      const plugins: PluggableList = []
      if (opts.wikilinks) {
      // regex replacements
        plugins.push(() => {
          return (tree: Root, _file) => {
            findAndReplace(tree, wikilinkRegex, (value: string, ...capture: string[]) => {
        return (tree: Root, file) => {
          const replacements: [RegExp, string | ReplaceFunction][] = []
          const base = pathToRoot(file.data.slug!)
          if (opts.wikilinks) {
            replacements.push([
              wikilinkRegex,
              (value: string, ...capture: string[]) => {
              let [rawFp, rawHeader, rawAlias] = capture
              const fp = rawFp?.trim() ?? ""
              const anchor = rawHeader?.trim() ?? ""
@@ -265,37 +251,94 @@
                  },
                ],
              }
            })
          }
        })
              },
            ])
      }
      if (opts.highlight) {
        plugins.push(() => {
          return (tree: Root, _file) => {
            findAndReplace(tree, highlightRegex, (_value: string, ...capture: string[]) => {
            replacements.push([
              highlightRegex,
              (_value: string, ...capture: string[]) => {
              const [inner] = capture
              return {
                type: "html",
                value: `<span class="text-highlight">${inner}</span>`,
              }
            })
          }
        })
              },
            ])
      }
      if (opts.comments) {
        plugins.push(() => {
          return (tree: Root, _file) => {
            findAndReplace(tree, commentRegex, (_value: string, ..._capture: string[]) => {
            replacements.push([
              commentRegex,
              (_value: string, ..._capture: string[]) => {
              return {
                type: "text",
                value: "",
              }
            })
              },
            ])
          }
          if (opts.parseTags) {
            replacements.push([
              tagRegex,
              (_value: string, tag: string) => {
                // Check if the tag only includes numbers
                if (/^\d+$/.test(tag)) {
                  return false
                }
                tag = slugTag(tag)
                if (file.data.frontmatter && !file.data.frontmatter.tags.includes(tag)) {
                  file.data.frontmatter.tags.push(tag)
                }
                return {
                  type: "link",
                  url: base + `/tags/${tag}`,
                  data: {
                    hProperties: {
                      className: ["tag-link"],
                    },
                  },
                  children: [
                    {
                      type: "text",
                      value: `#${tag}`,
                    },
                  ],
                }
              },
            ])
          }
          if (opts.enableInHtmlEmbed) {
            visit(tree, "html", (node: Html) => {
              for (const [regex, replace] of replacements) {
                if (typeof replace === "string") {
                  node.value = node.value.replace(regex, replace)
                } else {
                  node.value = node.value.replaceAll(regex, (substring: string, ...args) => {
                    const replaceValue = replace(substring, ...args)
                    if (typeof replaceValue === "string") {
                      return replaceValue
                    } else if (Array.isArray(replaceValue)) {
                      return replaceValue.map(mdastToHtml).join("")
                    } else if (typeof replaceValue === "object" && replaceValue !== null) {
                      return mdastToHtml(replaceValue)
                    } else {
                      return substring
          }
        })
      }
              }
            })
          }
          mdastFindReplace(tree, replacements)
        }
      })
      if (opts.callouts) {
        plugins.push(() => {
@@ -336,7 +379,7 @@
                  <polyline points="6 9 12 15 18 9"></polyline>
                </svg>`
                const titleHtml: HTML = {
                const titleHtml: Html = {
                  type: "html",
                  value: `<div
                  class="callout-title"
@@ -396,45 +439,10 @@
        })
      }
      if (opts.parseTags) {
        plugins.push(() => {
          return (tree: Root, file) => {
            const base = pathToRoot(file.data.slug!)
            findAndReplace(tree, tagRegex, (_value: string, tag: string) => {
              // Check if the tag only includes numbers
              if (/^\d+$/.test(tag)) {
                return false
              }
              tag = slugTag(tag)
              if (file.data.frontmatter && !file.data.frontmatter.tags.includes(tag)) {
                file.data.frontmatter.tags.push(tag)
              }
              return {
                type: "link",
                url: base + `/tags/${tag}`,
                data: {
                  hProperties: {
                    className: ["tag-link"],
                  },
                },
                children: [
                  {
                    type: "text",
                    value: `#${tag}`,
                  },
                ],
              }
            })
          }
        })
      }
      return plugins
    },
    htmlPlugins() {
      const plugins = [rehypeRaw]
      const plugins: PluggableList = [rehypeRaw]
      if (opts.parseBlockReferences) {
        plugins.push(() => {
          const inlineTagTypes = new Set(["p", "li"])