Make DISPLAY_CHARSET_HD44780 a single setting

Marlin/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/SanityCheck.h

 /**
  * Required LCD language
  */
-#if DISABLED(DOGLCD) && ENABLED(ULTRA_LCD) && DISABLED(DISPLAY_CHARSET_HD44780_JAPAN) && DISABLED(DISPLAY_CHARSET_HD44780_WESTERN) && DISABLED(DISPLAY_CHARSET_HD44780_CYRILLIC)
-  #error You must enable either DISPLAY_CHARSET_HD44780_JAPAN or DISPLAY_CHARSET_HD44780_WESTERN  or DISPLAY_CHARSET_HD44780_CYRILLIC for your LCD controller.
+#if DISABLED(DOGLCD) && ENABLED(ULTRA_LCD) && !defined(DISPLAY_CHARSET_HD44780)
+  #error You must set DISPLAY_CHARSET_HD44780 to JAPANESE, WESTERN or CYRILLIC for your LCD controller.
 #endif
 
 /**

Marlin/dogm_lcd_implementation.h

 #define DOGM_LCD_IMPLEMENTATION_H
 
 /**
- * Implementation of the LCD display routines for a DOGM128 graphic display. These are common LCD 128x64 pixel graphic displays.
+ * Implementation of the LCD display routines for a DOGM128 graphic display.
+ * These are common LCD 128x64 pixel graphic displays.
  */
 
 #if ENABLED(ULTIPANEL)
     #define FONT_MENU_NAME ISO10646_1_5x7
   #endif
 #else // SIMULATE_ROMFONT
-  #if ENABLED(DISPLAY_CHARSET_HD44780_JAPAN)
+  #if DISPLAY_CHARSET_HD44780 == JAPANESE
     #include "dogm_font_data_HD44780_J.h"
     #define FONT_MENU_NAME HD44780_J_5x7
-  #elif ENABLED(DISPLAY_CHARSET_HD44780_WESTERN)
+  #elif DISPLAY_CHARSET_HD44780 == WESTERN
     #include "dogm_font_data_HD44780_W.h"
     #define FONT_MENU_NAME HD44780_W_5x7
-  #elif ENABLED(DISPLAY_CHARSET_HD44780_CYRILLIC)
+  #elif DISPLAY_CHARSET_HD44780 == CYRILLIC
     #include "dogm_font_data_HD44780_C.h"
     #define FONT_MENU_NAME HD44780_C_5x7
   #else // fall-back

Marlin/example_configurations/Felix/Configuration.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/Felix/Configuration_DUAL.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/Hephestos/Configuration.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/Hephestos_2/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/K8200/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // K8200: for Display VM8201
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE     // K8200: for Display VM8201
 
 //
 // LCD TYPE

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/RigidBot/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/SCARA/Configuration.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/TAZ4/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/WITBOX/Configuration.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/adafruit/ST7565/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/delta/biv2.5/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/delta/generic/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/delta/kossel_mini/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/delta/kossel_pro/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/delta/kossel_xl/Configuration.h

 //
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/makibox/Configuration.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/example_configurations/tvrrug/Round2/Configuration.h

 //
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 
-//
-// LCD CHARACTER SET
-//
-// Choose ONE of the following charset options. This selection depends on
-// your physical hardware, so it must match your character-based LCD.
-//
-// Note: This option is NOT applicable to graphical displays.
-//
-// To find out what type of display you have:
-//  - Compile and upload with the language (above) set to 'test'
-//  - Click the controller to view the LCD menu
-//
-// The LCD will display two lines from the upper half of the character set.
-//
-// See also https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-#define DISPLAY_CHARSET_HD44780_JAPAN        // this is the most common hardware
-//#define DISPLAY_CHARSET_HD44780_WESTERN
-//#define DISPLAY_CHARSET_HD44780_CYRILLIC
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCD's provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE','WESTERN','CYRILLIC']
+ */
+#define DISPLAY_CHARSET_HD44780 JAPANESE
 
 //
 // LCD TYPE

Marlin/language.h

 
 #define GENERATE_LANGUAGE_INCLUDE(M)  STRINGIFY_(language_##M.h)
 
+// For character-based LCD controllers (DISPLAY_CHARSET_HD44780)
+#define JAPANESE 1
+#define WESTERN  2
+#define CYRILLIC 3
 
 // NOTE: IF YOU CHANGE LANGUAGE FILES OR MERGE A FILE WITH CHANGES
 //
 
 // LCD Menu Messages
 
-#if DISABLED(DISPLAY_CHARSET_HD44780_JAPAN) && DISABLED(DISPLAY_CHARSET_HD44780_WESTERN) && DISABLED(DISPLAY_CHARSET_HD44780_CYRILLIC)
-  #define DISPLAY_CHARSET_HD44780_JAPAN
-#endif
-
 #include LANGUAGE_INCLUDE
 #include "language_en.h"
 

Marlin/utf_mapper.h

     #define MAPPER_ONE_TO_ONE
   #endif
 #else // SIMULATE_ROMFONT
-  #if ENABLED(DISPLAY_CHARSET_HD44780_JAPAN)
+  #if DISPLAY_CHARSET_HD44780 == JAPANESE
     #if ENABLED(MAPPER_C2C3)
       const PROGMEM uint8_t utf_recode[] =
            { // 0    1    2    3    4    5    6    7    8    9    a    b    c    d    e    f          This is fair for symbols
       #error( "Cyrillic on a japanese dsplay makes no sense. There are no matching symbols.");
     #endif
 
-  #elif ENABLED(DISPLAY_CHARSET_HD44780_WESTERN)
+  #elif DISPLAY_CHARSET_HD44780 == WESTERN
     #if ENABLED(MAPPER_C2C3)
       const PROGMEM uint8_t utf_recode[] =
            { // 0    1    2    3    4    5    6    7    8    9    a    b    c    d    e    f   This is relative complete.
       #error( "Katakana on a western display makes no sense. There are no matching symbols." );
     #endif
 
-  #elif ENABLED(DISPLAY_CHARSET_HD44780_CYRILLIC)
+  #elif DISPLAY_CHARSET_HD44780 == CYRILLIC
     #if ENABLED(MAPPER_D0D1)
       #define MAPPER_D0D1_MOD
       // it is a Russian alphabet translation
       // except 0401 --> 0xa2 = Ё, 0451 --> 0xb5 = ё
       const PROGMEM uint8_t utf_recode[] =
              { 0x41,0xa0,0x42,0xa1,0xe0,0x45,0xa3,0xa4,   // unicode U+0400 to U+047f
-  //            A   Б->Ё  B    Г    Д    E    Ж    З      // 0  Ѐ Ё Ђ Ѓ Є Ѕ І Ї
+             // A   Б->Ё  B    Г    Д    E    Ж    З      // 0  Ѐ Ё Ђ Ѓ Є Ѕ І Ї
                0xa5,0xa6,0x4b,0xa7,0x4d,0x48,0x4f,0xa8,   //    Ј Љ Њ Ћ Ќ Ѝ Ў Џ
-  //            И    Й    K    Л    M    H    O    П      // 1  А Б В Г Д Е Ж З
+             // И    Й    K    Л    M    H    O    П      // 1  А Б В Г Д Е Ж З
                0x50,0x43,0x54,0xa9,0xaa,0x58,0xe1,0xab,   //    И Й К Л М Н О П
-  //            P    C    T    У    Ф    X    Ч    ч      // 2  Р С Т У Ф Х Г Ч
+             // P    C    T    У    Ф    X    Ч    ч      // 2  Р С Т У Ф Х Г Ч
                0xac,0xe2,0xad,0xae,0x62,0xaf,0xb0,0xb1,   //    Ш Щ Ъ Ы Ь Э Ю Я
-  //            Ш    Щ    Ъ    Ы    b    Э    Ю    Я      // 3  а б в г д е ж з
+             // Ш    Щ    Ъ    Ы    b    Э    Ю    Я      // 3  а б в г д е ж з
                0x61,0xb2,0xb3,0xb4,0xe3,0x65,0xb6,0xb7,   //    и й к л м н о п
-  //            a   б->ё  в    г    д    e    ж    з      // 4  р с т у ф х ц ч
+             // a   б->ё  в    г    д    e    ж    з      // 4  р с т у ф х ц ч
                0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0x6f,0xbe,   //    ш щ ъ ы ь э ю я
-  //            и    й    к    л    м    н    o    п      // 5  ѐ ё ђ ѓ є ѕ і ї
+             // и    й    к    л    м    н    o    п      // 5  ѐ ё ђ ѓ є ѕ і ї
                0x70,0x63,0xbf,0x79,0xe4,0x78,0xe5,0xc0,   //    ј љ њ ћ ќ ѝ ў џ
-  //            p    c    т    y    ф    x    ц    ч      // 6  Ѡ ѡ Ѣ ѣ Ѥ ѥ Ѧ ѧ
+             // p    c    т    y    ф    x    ц    ч      // 6  Ѡ ѡ Ѣ ѣ Ѥ ѥ Ѧ ѧ
                0xc1,0xe6,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7    //    Ѫ ѩ Ѫ ѫ Ѭ ѭ Ѯ ѯ
-  //            ш    щ    ъ    ы    ь    э    ю    я      // 7  Ѱ ѱ Ѳ ѳ Ѵ ѵ Ѷ ѷ
+             // ш    щ    ъ    ы    ь    э    ю    я      // 7  Ѱ ѱ Ѳ ѳ Ѵ ѵ Ѷ ѷ
              };                                           //    ѻ ѹ Ѻ ѻ Ѽ ѽ Ѿ ѿ
     #elif ENABLED(MAPPER_C2C3)
       #error( "Western languages on a cyrillic display makes no sense. There are no matching symbols." );
       #error( "Katakana on a cyrillic display makes no sense. There are no matching symbols." );
     #endif
   #else
-    #error("Something went wrong in the selection of DISPLAY_CHARSET_HD44780's");
-  #endif // DISPLAY_CHARSET_HD44780_CYRILLIC
+    #error("Something went wrong in the setting of DISPLAY_CHARSET_HD44780");
+  #endif // DISPLAY_CHARSET_HD44780
 #endif // SIMULATE_ROMFONT
 
 #if ENABLED(MAPPER_NON)