add: formatting support.

Author: AlbertWeichselbraun

src/inscriptis/html_properties.py

@@ -46,13 +46,32 @@ class HorizontalAlignment(Enum):
     center = "^"
     """Center the block's content."""
 
+    def format(self, text: str, width: int) -> str:
+        """Format the given text to the specified width using the alignment.
+
+        Args:
+            text: The text to format.
+            width: The width to format the text to.
+
+        Returns:
+            The formatted text.
+
+        """
+        match self:
+            case HorizontalAlignment.left:
+                return text.ljust(width)
+            case HorizontalAlignment.right:
+                return text.rjust(width)
+            case HorizontalAlignment.center:
+                return text.center(width)
+
 
 class VerticalAlignment(Enum):
     """Specify the content's vertical alignment."""
 
-    top = 1
+    top = 0
     """Align all content at the top."""
-    middle = 2
+    middle = 1
     """Align all content in the middle."""
-    bottom = 3
+    bottom = 2
     """Align all content at the bottom."""