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4. Xmodmap theory and Xmodmap solution

If you want to edit and make your own .Xmodmap keyboard layout definitions, I'll explain one line of the .Xmodmap file to make clear what you should do.

This explanation can be used for all keycodes. For example, the line:

keycode 0x11 = 8 asterisk aacute 8

(note: keycode 0x11 is derived from the "xkeycaps" utility; you can also use the X Window "xev" utility to explore keyboard puzzles.)

says that the first pair, the default one, (number "8" and "asterisk") will display number "8" when you press keycode 0x11 ("8"), will display asterisk when a "shift" key is pressed. After pressing the Scroll Lock, there's another definition: ISO_NEXT_GROUP, which means that when you press the default "8" key, no "8" will be displayed, but aacute (А); when you press the "shift" key, number "8" will be displayed. So if you change "aacute" and "8", anything you put instead of "aacute" and "8" will be displayed, for example:

keycode 0x11 = 8 asterisk semicolon colon

will give you "semicolon" and "colon" in your 0x11 keycode after pressing the Scroll Lock.

The ISO_NEXT_GROUP is defined by another line. If this line is not defined, you will be able to use only two definitions ("8" and "asterisk") - look at my .Xmodmap file. If you delete the ISO_NEXT_GROUP (the next pair of definitions on the right), you will have only one group of keyboard definitions ("8" and "asterisk"). Be careful when editing the .Xmodmap file. You mustn't delete definitions that enable utilization of the Scroll Lock unless you know what you are doing (or you map the second keyboard by right Alt). These are the lines such as:

keycode 0x4e = ISO_Next_Group

add mod5 = ISO_Next_Group,

etc. You must also keep in mind that Unixes are case sensitive. If you want to find out more about keycodes, install the package "xkeycaps" or use "xev".

4.1. .Xmodmap sample file for the Slovak language typewriter layout

The following .Xmodmap sample file consists of two groups of keyboard definitions you my use in addition to your default or XKB keyboard choice. You may use this file as an example to build your own keyboard maps. This file needs editing for your specific purposes and it's here only as a hint. If you change letters like "y Y" to "t T", you will have "t T", etc. on your keyboard where you normally have "y Y" keys. So you see that thus you can have almost absolute control of your keyboard - something which in Microsoft Windows operating system can only be achieved by special and certainly expensive programs. Use the Scroll Lock to switch between the first and second group of key definitions. _______________________cut_here_________________________

keycode 0x09 = Escape

keycode 0x43 = F1 F11 F1 Multi_key

keycode 0x44 = F2 F12 F2 F12

keycode 0x45 = F3 F13 F3 F13 idiaeresis

keycode 0x46 = F4 F14 F4 F14 mu yen

keycode 0x47 = F5 F15 F5 F15 guillemotright guillemotleft

keycode 0x48 = F6 F16 F6 F16 ograve

keycode 0x49 = F7 F17 F7 dead_abovedot oacute

keycode 0x4A = F8 F18 F8 dead_breve acute

keycode 0x4B = F9 F19 F9 dead_cedilla ugrave

keycode 0x4C = F10 F20 F10 dead_ogonek

keycode 0x5F = F11 F21 dead_acute dead_caron

keycode 0x60 = F12 F22 dead_abovering dead_diaeresis

keycode 0x6F = Print Execute dead_iota

keycode 0x4E = ISO_Next_Group

keycode 0x6E = Pause

keycode 0x31 = grave asciitilde semicolon dead_diaeresis

keycode 0x0A = 1 exclam plus 1

keycode 0x0B = 2 at lcaron 2

keycode 0x0C = 3 numbersign scaron 3

keycode 0x0D = 4 dollar ccaron 4

keycode 0x0E = 5 percent tcaron 5

keycode 0x0F = 6 asciicircum zcaron 6

keycode 0x10 = 7 ampersand yacute 7

keycode 0x11 = 8 asterisk aacute 8

keycode 0x12 = 9 parenleft iacute 9

keycode 0x13 = 0 parenright eacute 0

keycode 0x14 = minus underscore equal percent

keycode 0x15 = equal plus dead_acute dead_caron

keycode 0x33 = backslash bar ncaron parenright

keycode 0x16 = BackSpace

keycode 0x6A = Insert

keycode 0x61 = Home

keycode 0x63 = Prior

keycode 0x4D = Num_Lock Pointer_EnableKeys

keycode 0x70 = KP_Divide slash

keycode 0x3F = KP_Multiply asterisk

keycode 0x52 = KP_Subtract minus

keycode 0x17 = Tab ISO_Left_Tab

keycode 0x18 = q Q

keycode 0x19 = w W

keycode 0x1A = e E

keycode 0x1B = r R

keycode 0x1C = t T

keycode 0x1D = y Y z Z

keycode 0x1E = u U

keycode 0x1F = i I

keycode 0x20 = o O

keycode 0x21 = p P

keycode 0x22 = bracketleft braceleft uacute slash

keycode 0x23 = bracketright braceright adiaeresis parenleft

keycode 0x24 = Return

keycode 0x6B = Delete

keycode 0x67 = End

keycode 0x69 = Next

keycode 0x4F = KP_Home 7 KP_Home

keycode 0x50 = KP_Up 8

keycode 0x51 = KP_Prior 9

keycode 0x56 = KP_Add plus

keycode 0x42 = Caps_Lock

keycode 0x26 = a A

keycode 0x27 = s S

keycode 0x28 = d D

keycode 0x29 = f F

keycode 0x2A = g G

keycode 0x2B = h H

keycode 0x2C = j J

keycode 0x2D = k K

keycode 0x2E = l L

keycode 0x2F = semicolon colon ocircumflex quotedbl

keycode 0x30 = apostrophe quotedbl section exclam

keycode 0x53 = KP_Left 4

keycode 0x54 = KP_Begin 5

keycode 0x55 = KP_Right 6

keycode 0x32 = Shift_L ISO_Next_Group

keycode 0x34 = z Z y Y

keycode 0x35 = x X

keycode 0x36 = c C

keycode 0x37 = v V

keycode 0x38 = b B

keycode 0x39 = n N

keycode 0x3A = m M

keycode 0x3B = comma less comma question

keycode 0x3C = period greater period colon

keycode 0x3D = slash question minus underscore

keycode 0x3E = Shift_R

keycode 0x62 = Up

keycode 0x57 = KP_End 1

keycode 0x58 = KP_Down 2

keycode 0x59 = KP_Next 3

keycode 0x6C = KP_Enter Return

keycode 0x25 = Control_L ISO_Next_Group

!keycode 0x40 = Alt_L Meta_L

keycode 0x40 = Meta_L Alt_L

keycode 0x41 = space

keycode 0x71 = Alt_R Meta_R

keycode 0x6D = Control_R

keycode 0x64 = Left

keycode 0x68 = Down

keycode 0x66 = Right

keycode 0x5A = KP_Insert 0

keycode 0x5B = KP_Delete period

!keysym Alt_L = Meta_L

!keysym F12 = Multi_key

clear Shift

!clear Lock

clear Control

clear Mod1

clear Mod2

clear Mod3

clear Mod4

clear Mod5

add Shift = Shift_L Shift_R

add Control = Control_L Control_R

!add Mod1 = Alt_L Alt_R

add Mod1 = Meta_L Alt_R

add Mod2 = Num_Lock

add Mod5 = ISO_Next_Group

!add Mod1 =

!add Mod2 = Alt_R Alt_L Mode_switch

keycode 0x73 = ISO_Next_Group

keycode 0x74 = dead_acute dead_diaeresis

keycode 0x75 = dead_caron dead_abovering


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