fix(markdown): properly handle square brackets that are not links

packages/markdown-parser/README.md

@@ -95,7 +95,7 @@ where `1234567` is the ID of the user you want to mention
 | `[Google](https://google.com)` | [Google](https://google.com) | `<a href="https://google.com">Google</a>`
 | `[__Google__](https://google.com)` | [_Google_](https://google.com) | `<a href="https://google.com"><i>Google</i></a>`
 | `[empty link]()` | empty link | `empty link`
-| `[empty link]` | empty link | `empty link`
+| `[empty link]` | [empty link] | `[empty link]`
 | `[User](tg://user?id=1234567)` | N/A | N/A
 
 ### Nested and overlapping entities

packages/markdown-parser/src/index.ts

@@ -102,7 +102,8 @@ export class MarkdownMessageEntityParser implements IMessageEntityParser {
 
                 if (text[pos + 1] !== '(') {
                     // [link text]
-                    // ignore this
+                    // ignore this, and add opening [
+                    result = `${result.substr(0, ent.offset)}[${result.substr(ent.offset)}]`
                     pos += 1
                     continue
                 }

packages/markdown-parser/tests/markdown-parser.spec.ts

@@ -587,7 +587,7 @@ describe('MarkdownMessageEntityParser', () => {
         })
 
         it('should ignore empty urls', () => {
-            test('[link]() [link]', [], 'link link')
+            test('[link]() [link]', [], 'link [link]')
         })
 
         it('should ignore unclosed tags', () => {