From c9ae7cf9425929f1e6bf6ebc9c0566fe93fe6037 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=89=E5=92=B2=E6=99=BA=E5=AD=90?= <sxzz@sxzz.moe>
Date: Sat, 26 Nov 2022 04:19:45 +0800
Subject: [PATCH] feat: support more markdown syntaxes

closes #102, partial #40
---
 components/content/ContentCode.vue |  4 +--
 composables/content.ts             | 17 ++++++-----
 package.json                       |  2 ++
 pnpm-lock.yaml                     | 49 ++++++++++++++++++++++++++++++
 4 files changed, 62 insertions(+), 10 deletions(-)

diff --git a/components/content/ContentCode.vue b/components/content/ContentCode.vue
index 942ef15a..b0647f53 100644
--- a/components/content/ContentCode.vue
+++ b/components/content/ContentCode.vue
@@ -4,7 +4,7 @@ const props = defineProps<{
   lang: string
 }>()
 
-const raw = computed(() => decodeURIComponent(props.code).replace(/&#39;/g, '\''))
+const raw = $computed(() => decodeURIComponent(props.code).replace(/&#39;/g, '\''))
 
 const langMap: Record<string, string> = {
   js: 'javascript',
@@ -13,7 +13,7 @@ const langMap: Record<string, string> = {
 }
 
 const hightlighted = computed(() => {
-  return highlightCode(raw.value, langMap[props.lang] || props.lang as any)
+  return props.lang ? highlightCode(raw, langMap[props.lang] || props.lang as any) : raw
 })
 </script>
 
diff --git a/composables/content.ts b/composables/content.ts
index d4857138..113ed3ef 100644
--- a/composables/content.ts
+++ b/composables/content.ts
@@ -4,6 +4,7 @@ import { parseFragment } from 'parse5'
 import type { Component, VNode } from 'vue'
 import { Fragment, h, isVNode } from 'vue'
 import { RouterLink } from 'vue-router'
+import MarkdownIt from 'markdown-it'
 import ContentCode from '~/components/content/ContentCode.vue'
 
 type Node = DefaultTreeAdapterMap['childNode']
@@ -46,11 +47,17 @@ function handleNode(el: Element) {
   return handleBlocks(el) || handleMention(el) || el
 }
 
+const md = new MarkdownIt()
+md.renderer.rules.fence = (tokens, idx) => {
+  const token = tokens[idx]
+  return `<custom-code lang="${token.info.trim().toLowerCase() || ''}" code="${encodeURIComponent(token.content)}"></custom-code>\n`
+}
+
 export function contentToVNode(
   content: string,
   customEmojis: Record<string, Emoji> = {},
 ): VNode {
-  content = content
+  content = md.render(htmlToText(content)
     .trim()
     // handle custom emojis
     .replace(/:([\w-]+?):/g, (_, name) => {
@@ -58,13 +65,7 @@ export function contentToVNode(
       if (emoji)
         return `<img src="${emoji.url}" alt="${name}" class="custom-emoji" />`
       return `:${name}:`
-    })
-    // handle code frames
-    .replace(/<p>(```|~~~)([\s\S]+?)\1/g, (_1, _2, raw) => {
-      const plain = htmlToText(`<p>${raw}</p>`).trim()
-      const [lang, ...rest] = plain.split(/\n/)
-      return `<custom-code lang="${lang?.trim().toLowerCase() || ''}" code="${encodeURIComponent(rest.join('\n'))}"></custom-code>`
-    })
+    }))
 
   const tree = parseFragment(content)
   return h(Fragment, tree.childNodes.map(n => treeToVNode(n)))
diff --git a/package.json b/package.json
index ce34d3d3..cf12ff64 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
     "@tiptap/vue-3": "2.0.0-beta.203",
     "@types/fs-extra": "^9.0.13",
     "@types/js-yaml": "^4.0.5",
+    "@types/markdown-it": "^12.2.3",
     "@types/prettier": "^2.7.1",
     "@types/sanitize-html": "^2.6.2",
     "@types/wicg-file-system-access": "^2020.9.5",
@@ -50,6 +51,7 @@
     "fs-extra": "^10.1.0",
     "js-yaml": "^4.1.0",
     "lru-cache": "^7.14.1",
+    "markdown-it": "^13.0.1",
     "masto": "^4.6.8",
     "nuxt": "^3.0.0",
     "parse5": "^7.1.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index fc602de4..68e390f8 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -19,6 +19,7 @@ specifiers:
   '@tiptap/vue-3': 2.0.0-beta.203
   '@types/fs-extra': ^9.0.13
   '@types/js-yaml': ^4.0.5
+  '@types/markdown-it': ^12.2.3
   '@types/prettier': ^2.7.1
   '@types/sanitize-html': ^2.6.2
   '@types/wicg-file-system-access': ^2020.9.5
@@ -35,6 +36,7 @@ specifiers:
   fs-extra: ^10.1.0
   js-yaml: ^4.1.0
   lru-cache: ^7.14.1
+  markdown-it: ^13.0.1
   masto: ^4.6.8
   nuxt: ^3.0.0
   parse5: ^7.1.2
@@ -70,6 +72,7 @@ devDependencies:
   '@tiptap/vue-3': 2.0.0-beta.203
   '@types/fs-extra': 9.0.13
   '@types/js-yaml': 4.0.5
+  '@types/markdown-it': 12.2.3
   '@types/prettier': 2.7.1
   '@types/sanitize-html': 2.6.2
   '@types/wicg-file-system-access': 2020.9.5
@@ -86,6 +89,7 @@ devDependencies:
   fs-extra: 10.1.0
   js-yaml: 4.1.0
   lru-cache: 7.14.1
+  markdown-it: 13.0.1
   masto: 4.6.8
   nuxt: 3.0.0_hsf322ms6xhhd4b5ne6lb74y4a
   parse5: 7.1.2
@@ -1404,12 +1408,27 @@ packages:
     resolution: {integrity: sha512-dRLjCWHYg4oaA77cxO64oO+7JwCwnIzkZPdrrC71jQmQtlhM556pwKo5bUzqvZndkVbeFLIIi+9TC40JNF5hNQ==}
     dev: true
 
+  /@types/linkify-it/3.0.2:
+    resolution: {integrity: sha512-HZQYqbiFVWufzCwexrvh694SOim8z2d+xJl5UNamcvQFejLY/2YUtzXHYi3cHdI7PMlS8ejH2slRAOJQ32aNbA==}
+    dev: true
+
+  /@types/markdown-it/12.2.3:
+    resolution: {integrity: sha512-GKMHFfv3458yYy+v/N8gjufHO6MSZKCOXpZc5GXIWWy8uldwfmPn98vp81gZ5f9SVw8YYBctgfJ22a2d7AOMeQ==}
+    dependencies:
+      '@types/linkify-it': 3.0.2
+      '@types/mdurl': 1.0.2
+    dev: true
+
   /@types/mdast/3.0.10:
     resolution: {integrity: sha512-W864tg/Osz1+9f4lrGTZpCSO5/z4608eUp19tbozkq2HJK6i3z1kT0H9tlADXuYIb1YYOBByU4Jsqkk75q48qA==}
     dependencies:
       '@types/unist': 2.0.6
     dev: true
 
+  /@types/mdurl/1.0.2:
+    resolution: {integrity: sha512-eC4U9MlIcu2q0KQmXszyn5Akca/0jrQmwDRgpAMJai7qBWq4amIQhZyNau4VYGtCeALvW1/NtjzJJ567aZxfKA==}
+    dev: true
+
   /@types/node/18.11.9:
     resolution: {integrity: sha512-CRpX21/kGdzjOpFsZSkcrXMGIBWMGNIHXXBVFSH+ggkftxg+XYP20TESbh+zFvFj3EQOl5byk0HTRn1IL6hbqg==}
     dev: true
@@ -3286,6 +3305,11 @@ packages:
     resolution: {integrity: sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==}
     dev: true
 
+  /entities/3.0.1:
+    resolution: {integrity: sha512-WiyBqoomrwMdFG1e0kqvASYfnlb0lp8M5o5Fw2OFq1hNZxxcNk8Ik0Xm7LxzBhuidnZB/UtBqVCgUz3kBOP51Q==}
+    engines: {node: '>=0.12'}
+    dev: true
+
   /entities/4.4.0:
     resolution: {integrity: sha512-oYp7156SP8LkeGD0GF85ad1X9Ai79WtRsZ2gxJqtBuzH+98YUV6jkHEKlZkMbcrjJjIVJNIDP/3WL9wQkoPbWA==}
     engines: {node: '>=0.12'}
@@ -4968,6 +4992,12 @@ packages:
     resolution: {integrity: sha512-7ylylesZQ/PV29jhEDl3Ufjo6ZX7gCqJr5F7PKrqc93v7fzSymt1BpwEU8nAUXs8qzzvqhbjhK5QZg6Mt/HkBg==}
     dev: true
 
+  /linkify-it/4.0.1:
+    resolution: {integrity: sha512-C7bfi1UZmoj8+PQx22XyeXCuBlokoyWQL5pWSP+EI6nzRylyThouddufc2c1NDIcP9k5agmN9fLpA7VNJfIiqw==}
+    dependencies:
+      uc.micro: 1.0.6
+    dev: true
+
   /listhen/1.0.0:
     resolution: {integrity: sha512-frdf7TVqT/JSHzRjEuo/vWIgbBYzEuY3oeTq8Yv1XkQVTKDPs2M4yotXICqYZYj2QxbkqKssSo8Wa6QCtBnFhg==}
     dependencies:
@@ -5117,6 +5147,17 @@ packages:
       semver: 6.3.0
     dev: true
 
+  /markdown-it/13.0.1:
+    resolution: {integrity: sha512-lTlxriVoy2criHP0JKRhO2VDG9c2ypWCsT237eDiLqi09rmbKoUetyGHq2uOIRoRS//kfoJckS0eUzzkDR+k2Q==}
+    hasBin: true
+    dependencies:
+      argparse: 2.0.1
+      entities: 3.0.1
+      linkify-it: 4.0.1
+      mdurl: 1.0.1
+      uc.micro: 1.0.6
+    dev: true
+
   /masto/4.6.8:
     resolution: {integrity: sha512-GCfOQX95WVzTuFPFXq+QTM8oD5et2Mh9veE5UmpwiD7kkMw7aLl1iXDQCDtgbSiyPmOONcs6UWKoFYp0k5hQjw==}
     dependencies:
@@ -5157,6 +5198,10 @@ packages:
     resolution: {integrity: sha512-aylIc7Z9y4yzHYAJNuESG3hfhC+0Ibp/MAMiaOZgNv4pmEdFyfZhhhny4MNiAfWdBQ1RQ2mfDWmM1x8SvGyp8g==}
     dev: true
 
+  /mdurl/1.0.1:
+    resolution: {integrity: sha512-/sKlQJCBYVY9Ers9hqzKou4H6V5UWc/M59TH2dvkt+84itfnq7uFOMLpOiOS4ujvHP4etln18fmIxA5R5fll0g==}
+    dev: true
+
   /memory-fs/0.5.0:
     resolution: {integrity: sha512-jA0rdU5KoQMC0e6ppoNRtpp6vjFq6+NY7r8hywnC7V+1Xj/MtHwGIbB1QaK/dunyjWteJzmkpd7ooeWg10T7GA==}
     engines: {node: '>=4.3.0 <5.0.0 || >=5.10'}
@@ -7242,6 +7287,10 @@ packages:
     hasBin: true
     dev: true
 
+  /uc.micro/1.0.6:
+    resolution: {integrity: sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==}
+    dev: true
+
   /ufo/0.8.6:
     resolution: {integrity: sha512-fk6CmUgwKCfX79EzcDQQpSCMxrHstvbLswFChHS0Vump+kFkw7nJBfTZoC1j0bOGoY9I7R3n2DGek5ajbcYnOw==}
     dev: true