chore: convert try/except to explicit checks

Rather than causing an exception and handling it, this change explicitly checks the type of certain arguments and only converts strings to integers if needed.

Both this change and the previous implementation don't handle cases where the string passed is not numeric. However, I'm just getting familiar with the codebase, so this is possibly handled elsewhere.

evennia/utils/funcparser.py

@@ -657,10 +657,9 @@ def funcparser_callable_eval(*args, **kwargs):
 def funcparser_callable_toint(*args, **kwargs):
     """Usage: $toint(43.0) -> 43"""
     inp = funcparser_callable_eval(*args, **kwargs)
-    try:
-        return int(inp)
-    except TypeError:
-        return inp
+    if isinstance(inp, str) and inp.isnumeric():
+        inp = int(inp)
+    return inp
 
 
 def funcparser_callable_int2str(*args, **kwargs):
@@ -674,10 +673,9 @@ def funcparser_callable_int2str(*args, **kwargs):
     """
     if not args:
         return ""
-    try:
+    number = args[0]
+    if isinstance(args[0], str) and args[0].isnumeric():
         number = int(args[0])
-    except ValueError:
-        return args[0]
     return int2str(number)
 
 
@@ -900,10 +898,9 @@ def funcparser_callable_pad(*args, **kwargs):
 
     text, *rest = args
     nrest = len(rest)
-    try:
-        width = int(kwargs.get("width", rest[0] if nrest > 0 else _CLIENT_DEFAULT_WIDTH))
-    except TypeError:
-        width = _CLIENT_DEFAULT_WIDTH
+    width = kwargs.get("width", rest[0] if nrest > 0 else _CLIENT_DEFAULT_WIDTH)
+    if isinstance(width, str) and width.isnumeric():
+        width = int(width)
 
     align = kwargs.get("align", rest[1] if nrest > 1 else "c")
     fillchar = kwargs.get("fillchar", rest[2] if nrest > 2 else " ")
@@ -932,10 +929,9 @@ def funcparser_callable_crop(*args, **kwargs):
         return ""
     text, *rest = args
     nrest = len(rest)
-    try:
-        width = int(kwargs.get("width", rest[0] if nrest > 0 else _CLIENT_DEFAULT_WIDTH))
-    except TypeError:
-        width = _CLIENT_DEFAULT_WIDTH
+    width = kwargs.get("width", rest[0] if nrest > 0 else _CLIENT_DEFAULT_WIDTH)
+    if isinstance(width, str) and width.isnumeric():
+        width = int(width)
     suffix = kwargs.get("suffix", rest[1] if nrest > 1 else "[...]")
     return crop(str(text), width=width, suffix=str(suffix))
 
@@ -949,10 +945,9 @@ def funcparser_callable_space(*args, **kwarg):
     """
     if not args:
         return ""
-    try:
-        width = int(args[0])
-    except TypeError:
-        width = 1
+    width = args[0]
+    if isinstance(width, str) and width.isnumeric():
+        width = int(width)
     return " " * width