feat(seautils): add correct formatting for masked links

seautils/seautils.py

@@ -8,6 +8,7 @@
 import asyncio
 import inspect
 import operator
+import re
 from asyncio.subprocess import Process
 from functools import partial, partialmethod
 from typing import Any
@@ -28,6 +29,9 @@ from redbot.core.utils.views import SimpleMenu
 def md(soup: BeautifulSoup, **options) -> Any | str:
     return MarkdownConverter(**options).convert_soup(soup)
 
+def convert_rfc_references(text: str):
+    return re.sub(r"\(RFC\s(\d+)\)", r"(https://www.rfc-editor.org/rfc/rfc\1.html)", text)
+
 class SeaUtils(commands.Cog):
     """A collection of random utilities."""
 
@@ -204,15 +208,16 @@ class SeaUtils(commands.Cog):
                     pre_tags = soup.find_all('pre')
                     content = []
                     for pre_tag in pre_tags:
+                        text = convert_rfc_references(md(pre_tag))
                         if await ctx.embed_requested():
                             embed = Embed(
                                 title="RFC Document",
-                                description=md(pre_tag),
+                                description=text,
                                 color=await ctx.embed_color()
                             )
                             content.append(embed)
                         else:
-                            content.append(md(pre_tag))
+                            content.append(text)
                     await SimpleMenu(pages=content, disable_after_timeout=True, timeout=300).start(ctx)
                 else:
                     await ctx.maybe_send_embed(content=cf.error(f"An error occurred while fetching RFC {number}. Status code: {response.status}."))