Add raw_mention utils (#1658)

* Add raw_mention utilities

* Adjust regex for parity with the client

Co-authored-by: BobDotCom <71356958+BobDotCom@users.noreply.github.com>

Author: NeloBlivion

CHANGELOG.md

@@ -15,6 +15,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - New `View.get_item()` method. ([#1659](https://github.com/Pycord-Development/pycord/pull/1659))
 - Permissions support for bridge commands. ([#1642](https://github.com/Pycord-Development/pycord/pull/1642))
 - New `BridgeCommand.invoke()` method. ([#1642](https://github.com/Pycord-Development/pycord/pull/1642))
+- New `raw_mentions`, `raw_role_mentions` and `raw_channel_mentions` functions in `discord.utils`.
+  ([#1658](https://github.com/Pycord-Development/pycord/pull/1658))
 
 ### Deprecated
 - The `delete_message_days` parameter in ban methods is now deprecated. Please use `delete_message_seconds` instead.

discord/utils.py

@@ -88,6 +88,9 @@
     "remove_markdown",
     "escape_markdown",
     "escape_mentions",
+    "raw_mentions",
+    "raw_channel_mentions",
+    "raw_role_mentions",
     "as_chunks",
     "format_dt",
     "basic_autocomplete",
@@ -931,6 +934,50 @@ def escape_mentions(text: str) -> str:
     """
     return re.sub(r"@(everyone|here|[!&]?[0-9]{17,20})", "@\u200b\\1", text)
 
+def raw_mentions(text: str) -> List[int]:
+    """Returns a list of user IDs matching ``<@user_id>`` in the string.
+
+    Parameters
+    -----------
+    text: :class:`str`
+        The string to get user mentions from.
+
+    Returns
+    --------
+    List[:class:`int`]
+        A list of user IDs found in the string.
+    """
+    return [int(x) for x in re.findall(r"<@!?([0-9]+)>", text)]
+
+def raw_channel_mentions(text: str) -> List[int]:
+    """Returns a list of channel IDs matching ``<@#channel_id>`` in the string.
+
+    Parameters
+    -----------
+    text: :class:`str`
+        The string to get channel mentions from.
+
+    Returns
+    --------
+    List[:class:`int`]
+        A list of channel IDs found in the string.
+    """
+    return [int(x) for x in re.findall(r"<#([0-9]+)>", text)]
+
+def raw_role_mentions(text: str) -> List[int]:
+    """Returns a list of role IDs matching ``<@&role_id>`` in the string.
+
+    Parameters
+    -----------
+    text: :class:`str`
+        The string to get role mentions from.
+
+    Returns
+    --------
+    List[:class:`int`]
+        A list of role IDs found in the string.
+    """
+    return [int(x) for x in re.findall(r"<@&([0-9]+)>", text)]
 
 def _chunk(iterator: Iterator[T], max_size: int) -> Iterator[List[T]]:
     ret = []