use vscode-markdown-it-katex to render kaTex

.gitignore

@@ -1,7 +1,5 @@
+node_modules/
 .history
 .vscode-test
-node_modules
-work/**
 *.vsix
-*.bat
-.eslintrc.json
+/extension.js

.vscodeignore

@@ -1,10 +1,11 @@
-.vscode/**
-typings/**
-test/**
+.github/
+.vscode/
+node_modules/
+sample/
+test/
 .gitignore
-jsconfig.json
 *.vsix
-work/**
-*.bat
-.eslintrc.json
-sample/**
+esbuild.js
+extension.js.map
+jsconfig.json
+src/extension.js

README.ja.md

@@ -36,6 +36,7 @@
 * [markdown-it-checkbox](https://github.com/mcecot/markdown-it-checkbox)
 * [markdown-it-container](https://github.com/markdown-it/markdown-it-container)
 * [markdown-it-include](https://github.com/camelaissani/markdown-it-include)
+* [markdown-it-katex](https://github.com/microsoft/vscode-markdown-it-katex)
 * [PlantUML](https://plantuml.com/)
   * [markdown-it-plantuml](https://github.com/gmunguia/markdown-it-plantuml)
 * [mermaid](https://mermaid-js.github.io/mermaid/)
@@ -105,6 +106,21 @@ Content of plugins/README.md
 Content of CHANGELOG.md
 ```
 
+### markdown-it-katex
+
+INPUT
+
+```
+$$
+\sqrt{3x-1}+(1+x)^2
+$$
+```
+
+OUTPUT
+
+![katex](images/katex.png)
+
+
 ### mermaid
 
 INPUT

README.md

@@ -38,6 +38,7 @@ Supports the following features
 * [markdown-it-checkbox](https://github.com/mcecot/markdown-it-checkbox)
 * [markdown-it-container](https://github.com/markdown-it/markdown-it-container)
 * [markdown-it-include](https://github.com/camelaissani/markdown-it-include)
+* [markdown-it-katex](https://github.com/microsoft/vscode-markdown-it-katex)
 * [PlantUML](https://plantuml.com/)
   * [markdown-it-plantuml](https://github.com/gmunguia/markdown-it-plantuml)
 * [mermaid](https://mermaid-js.github.io/mermaid/)
@@ -107,6 +108,20 @@ Content of plugins/README.md
 Content of CHANGELOG.md
 ```
 
+### markdown-it-katex
+
+INPUT
+
+```
+$$
+\sqrt{3x-1}+(1+x)^2
+$$
+```
+
+OUTPUT
+
+![katex](images/katex.png)
+
 ### mermaid
 
 INPUT

esbuild.js

@@ -0,0 +1,56 @@
+const esbuild = require('esbuild');
+
+const production = process.argv.includes('--production');
+const watch = process.argv.includes('--watch');
+
+async function main() {
+  const ctx = await esbuild.context({
+    entryPoints: ['src/extension.js'],
+    bundle: true,
+    format: 'cjs',
+    minify: production,
+    sourcemap: !production,
+    sourcesContent: false,
+    platform: 'node',
+    outfile: 'extension.js',
+    external: ['vscode'],
+    logLevel: 'silent',
+    plugins: [
+      /* add to the end of plugins array */
+      esbuildProblemMatcherPlugin,
+    ],
+  });
+  if (watch) {
+    await ctx.watch();
+  } else {
+    await ctx.rebuild();
+    await ctx.dispose();
+  }
+}
+
+/**
+ * @type {import('esbuild').Plugin}
+ */
+const esbuildProblemMatcherPlugin = {
+  name: 'esbuild-problem-matcher',
+
+  setup(build) {
+    build.onStart(() => {
+      console.log('[watch] build started');
+    });
+    build.onEnd((result) => {
+      result.errors.forEach(({ text, location }) => {
+        console.error(`✘ [ERROR] ${text}`);
+        console.error(
+          `    ${location.file}:${location.line}:${location.column}:`
+        );
+      });
+      console.log('[watch] build finished');
+    });
+  },
+};
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});