Add ascii_to_char conversion script (Fixes #13569)

conversions/ascii_to_char.py

@@ -0,0 +1,27 @@
+"""
+ascii_to_char.py
+----------------
+Converts an ASCII value (integer) to its corresponding character.
+
+Example:
+>>> ascii_to_char(65)
+'A'
+>>> ascii_to_char(97)
+'a'
+"""
+
+
+def ascii_to_char(ascii_value: int) -> str:
+    """
+    Convert an ASCII value to its corresponding character.
+    Raises ValueError if the ASCII value is not valid.
+    """
+    if not (0 <= ascii_value <= 127):
+        raise ValueError("ASCII value must be between 0 and 127.")
+    return chr(ascii_value)
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()