[Help] Allow prefix formatting in taglines

docs/cog_guides/core.rst

@@ -1683,8 +1683,11 @@ Set the tagline to be used.
 The maximum tagline length is 2048 characters.
 This setting only applies to embedded help. If no tagline is specified, the default will be used instead.
 
+You can use ``[p]`` in your tagline, which will be replaced by the bot's prefix.
+
 **Examples:**
     - ``[p]helpset tagline Thanks for using the bot!``
+    - ``[p]helpset tagline Use [p]invite to add me to your server.``
     - ``[p]helpset tagline`` - Resets the tagline to the default.
 
 **Arguments:**

redbot/core/commands/help.py

@@ -308,6 +308,12 @@ def get_default_tagline(ctx: Context):
             command2=f"{ctx.clean_prefix}help <category>",
         )
 
+    @staticmethod
+    def format_tagline(ctx: Context, tagline: str):
+        if not tagline:
+            return
+        return tagline.replace("[p]", ctx.clean_prefix)
+
     @staticmethod
     def get_command_signature(ctx: Context, command: commands.Command) -> str:
         parent = command.parent
@@ -345,7 +351,7 @@ async def format_command_help(
 
         description = command.description or ""
 
-        tagline = (help_settings.tagline) or self.get_default_tagline(ctx)
+        tagline = self.format_tagline(ctx, help_settings.tagline) or self.get_default_tagline(ctx)
         signature = _("Syntax: {command_signature}").format(
             command_signature=self.get_command_signature(ctx, command)
         )
@@ -569,7 +575,7 @@ async def format_cog_help(self, ctx: Context, obj: commands.Cog, help_settings:
             return
 
         description = obj.format_help_for_context(ctx)
-        tagline = (help_settings.tagline) or self.get_default_tagline(ctx)
+        tagline = self.format_tagline(ctx, help_settings.tagline) or self.get_default_tagline(ctx)
 
         if await self.embed_requested(ctx):
             emb = {"embed": {"title": "", "description": ""}, "footer": {"text": ""}, "fields": []}
@@ -642,7 +648,7 @@ async def format_bot_help(self, ctx: Context, help_settings: HelpSettings):
             return
 
         description = ctx.bot.description or ""
-        tagline = (help_settings.tagline) or self.get_default_tagline(ctx)
+        tagline = self.format_tagline(ctx, help_settings.tagline) or self.get_default_tagline(ctx)
 
         if await self.embed_requested(ctx):
             emb = {"embed": {"title": "", "description": ""}, "footer": {"text": ""}, "fields": []}
@@ -763,7 +769,9 @@ async def command_not_found(self, ctx, help_for, help_settings: HelpSettings):
                     name=_("{ctx.me.display_name} Help Menu").format(ctx=ctx),
                     icon_url=ctx.me.display_avatar,
                 )
-                tagline = help_settings.tagline or self.get_default_tagline(ctx)
+                tagline = self.format_tagline(
+                    ctx, help_settings.tagline
+                ) or self.get_default_tagline(ctx)
                 ret.set_footer(text=tagline)
                 await ctx.send(embed=ret)
             else:
@@ -776,7 +784,9 @@ async def command_not_found(self, ctx, help_for, help_settings: HelpSettings):
                     name=_("{ctx.me.display_name} Help Menu").format(ctx=ctx),
                     icon_url=ctx.me.display_avatar,
                 )
-                tagline = help_settings.tagline or self.get_default_tagline(ctx)
+                tagline = self.format_tagline(
+                    ctx, help_settings.tagline
+                ) or self.get_default_tagline(ctx)
                 ret.set_footer(text=tagline)
                 await ctx.send(embed=ret)
             else:
@@ -795,7 +805,9 @@ async def subcommand_not_found(self, ctx, command, not_found, help_settings: Hel
                 name=_("{ctx.me.display_name} Help Menu").format(ctx=ctx),
                 icon_url=ctx.me.display_avatar,
             )
-            tagline = help_settings.tagline or self.get_default_tagline(ctx)
+            tagline = self.format_tagline(ctx, help_settings.tagline) or self.get_default_tagline(
+                ctx
+            )
             ret.set_footer(text=tagline)
             await ctx.send(embed=ret)
         else:

redbot/core/core_commands.py

@@ -4535,8 +4535,11 @@ async def helpset_tagline(self, ctx: commands.Context, *, tagline: str = None):
         The maximum tagline length is 2048 characters.
         This setting only applies to embedded help. If no tagline is specified, the default will be used instead.
 
+        You can use `[\u200bp]` in your tagline, which will be replaced by the bot's prefix.
+
         **Examples:**
         - `[p]helpset tagline Thanks for using the bot!`
+        - `[p]helpset tagline Use [\u200bp]invite to add me to your server.`
         - `[p]helpset tagline` - Resets the tagline to the default.
 
         **Arguments:**