Support CJK text alignment (#2012)

* Add functions for unicode string alignment

* use unicode alignment function to show menu

* Allow table content to support unicode text alignment

archinstall/lib/menu/abstract_menu.py

@@ -1,32 +1,15 @@
 from __future__ import annotations
-import unicodedata
 
 from typing import Callable, Any, List, Iterator, Tuple, Optional, Dict, TYPE_CHECKING
 
 from .menu import Menu, MenuSelectionType
 from ..output import error
+from ..output import unicode_ljust
 from ..translationhandler import TranslationHandler, Language
 
 if TYPE_CHECKING:
 	_: Any
 
-def count_cjk_chars(string):
-	"Count the total number of CJK characters contained in a string"
-	return sum(unicodedata.east_asian_width(c) in 'FW' for c in string)
-
-def cjkljust(string, width, fillbyte=' '):
-	"""Support left alignment of Chinese, Japanese, Korean text
-	>>> cjkljust('Hello', 15, '*')
-	'Hello**********'
-	>>> cjkljust('你好', 15, '*')
-	'你好***********'
-	>>> cjkljust('안녕하세요', 15, '*')
-	'안녕하세요*****'
-	>>> cjkljust('こんにちは', 15, '*')
-	'こんにちは*****'
-	"""
-	return string.ljust(width - count_cjk_chars(string), fillbyte)
-
 class Selector:
 	def __init__(
 		self,
@@ -145,7 +128,7 @@ def menu_text(self, padding: int = 0) -> str:
 
 		if current:
 			padding += 5
-			description = cjkljust(str(self._description), padding, ' ')
+			description = unicode_ljust(str(self._description), padding, ' ')
 			current = current
 		else:
 			description = self._description

archinstall/lib/output.py

@@ -1,6 +1,7 @@
 import logging
 import os
 import sys
+import unicodedata
 from enum import Enum
 
 from pathlib import Path
@@ -83,7 +84,7 @@ def as_table(
 			if capitalize:
 				key = key.capitalize()
 
-			key_list.append(key.ljust(width))
+			key_list.append(unicode_ljust(key, width))
 
 		output += ' | '.join(key_list) + '\n'
 		output += '-' * len(output) + '\n'
@@ -99,9 +100,9 @@ def as_table(
 					value = '*' * width
 
 				if isinstance(value, (int, float)) or (isinstance(value, str) and value.isnumeric()):
-					obj_data.append(str(value).rjust(width))
+					obj_data.append(unicode_rjust(str(value), width))
 				else:
-					obj_data.append(str(value).ljust(width))
+					obj_data.append(unicode_ljust(str(value), width))
 
 			output += ' | '.join(obj_data) + '\n'
 
@@ -326,3 +327,33 @@ def log(
 		if level != logging.DEBUG or storage.get('arguments', {}).get('verbose', False):
 			sys.stdout.write(f"{text}\n")
 			sys.stdout.flush()
+
+def _count_wchars(string: str) -> int:
+	"Count the total number of wide characters contained in a string"
+	return sum(unicodedata.east_asian_width(c) in 'FW' for c in string)
+
+def unicode_ljust(string: str, width: int, fillbyte: str = ' ') -> str:
+	"""Return a left-justified unicode string of length width.
+	>>> unicode_ljust('Hello', 15, '*')
+	'Hello**********'
+	>>> unicode_ljust('你好', 15, '*')
+	'你好***********'
+	>>> unicode_ljust('안녕하세요', 15, '*')
+	'안녕하세요*****'
+	>>> unicode_ljust('こんにちは', 15, '*')
+	'こんにちは*****'
+	"""
+	return string.ljust(width - _count_wchars(string), fillbyte)
+
+def unicode_rjust(string: str, width: int, fillbyte: str = ' ') -> str:
+	"""Return a right-justified unicode string of length width.
+	>>> unicode_rjust('Hello', 15, '*')
+	'**********Hello'
+	>>> unicode_rjust('你好', 15, '*')
+	'***********你好'
+	>>> unicode_rjust('안녕하세요', 15, '*')
+	'*****안녕하세요'
+	>>> unicode_rjust('こんにちは', 15, '*')
+	'*****こんにちは'
+	"""
+	return string.rjust(width - _count_wchars(string), fillbyte)