add Formatless matching param

ircrobots/formatting.py

@@ -0,0 +1,44 @@
+from typing import List
+
+BOLD      = "\x02"
+COLOR     = "\x03"
+INVERT    = "\x16"
+ITALIC    = "\x1D"
+UNDERLINE = "\x1F"
+RESET     = "\x0F"
+
+FORMATTERS = [
+    BOLD,
+    INVERT,
+    ITALIC,
+    UNDERLINE,
+    RESET
+]
+
+def tokens(s: str) -> List[str]:
+    tokens: List[str] = []
+
+    s_copy = list(s)
+    while s_copy:
+        token = s_copy.pop(0)
+        if token == COLOR:
+            for i in range(2):
+                if s_copy and s_copy[0].isdigit():
+                    token += s_copy.pop(0)
+            if (len(s_copy) > 1 and
+                    s_copy[0] == "," and
+                    s_copy[1].isdigit()):
+                token += s_copy.pop(0)
+                token += s_copy.pop(0)
+                if s_copy and s_copy[0].isdigit():
+                    token += s_copy.pop(0)
+
+            tokens.append(token)
+        elif token in FORMATTERS:
+            tokens.append(token)
+    return tokens
+
+def strip(s: str):
+    for token in tokens(s):
+        s = s.replace(token, "", 1)
+    return s

ircrobots/matching/params.py

@@ -1,6 +1,7 @@
-from typing      import Optional
-from irctokens   import Hostmask
-from ..interface import IMatchResponseParam, IMatchResponseHostmask, IServer
+from typing       import Optional
+from irctokens    import Hostmask
+from ..interface  import IMatchResponseParam, IMatchResponseHostmask, IServer
+from .. import formatting
 
 class Any(IMatchResponseParam):
     def __repr__(self) -> str:
@@ -22,12 +23,20 @@ class Folded(IMatchResponseParam):
         self._value = value
         self._folded: Optional[str] = None
     def __repr__(self) -> str:
-        return f"FoldString({self._value!r})"
+        return f"Folded({self._value!r})"
     def match(self, server: IServer, arg: str) -> bool:
         if self._folded is None:
             self._folded = server.casefold(self._value)
         return self._folded == server.casefold(arg)
 
+class Formatless(Literal):
+    def __repr__(self) -> str:
+        brepr = super().__repr__()
+        return f"Formatless({brepr})"
+    def match(self, server: IServer, arg: str) -> bool:
+        strip = formatting.strip(arg)
+        return super().match(server, strip)
+
 class Not(IMatchResponseParam):
     def __init__(self, param: IMatchResponseParam):
         self._param = param