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What does a prefix key do in a keymap?
A prefix key is a key sequence whose binding is a keymap. The keymap defines what to do with key sequences that extend the prefix key.
Which is the global keymap for the prefix key in Emacs?
Some of the standard Emacs prefix keys use keymaps that are also found in Lisp variables: esc-map is the global keymap for the prefix key. help-map is the global keymap for the C-h prefix key. mode-specific-map is the global keymap for the prefix key C-c. ctl-x-map is the global keymap used for the C-x prefix key.
Where are the prefix keys in C-X?
Thus, the binding of C-x is the symbol Control-X-prefix, whose function definition is the keymap for C-x commands. The definitions of C-c, C-x, C-h, and ESC as prefix keys appear in the global map, so these prefix keys are always available.
What is the definition of the prefix key in Lisp?
The definition can also be a Lisp symbol whose function definition is the following keymap; the effect is the same, but it provides a command name for the prefix key that can be used as a description of what the prefix key is for. Thus, the binding of C-x is the symbol Control-X-prefix, whose function definition is the keymap for C-x commands.
When to add a new binding to a key?
If some prefix of key is undefined, then define-key defines it as a prefix key so that the rest of key can be defined as specified. If there was previously no binding for key in keymap, the new binding is added at the beginning of keymap.
Can you bind a key sequence to an abbreviation?
:ab lets you bind a key sequence to an abbreviation, for use in edit-mode. Abbreviations don’t fire until vi decides that you’ve typed the shortcut as a whole word. So if taf is a shortcut for Thomas A. Fine, and I type taffy, it won’t substitute because I didn’t enter taf as a word by itself.
Which is the name of the key in bind handle?
If the -k switch is used, the name of a key (such as ‘down’, ‘up’ or ‘backspace’) is used instead of a sequence. The names used are the same as the corresponding curses variables, but without the ‘key_’ prefix. (See terminfo (5) for more information, or use bind –key-names for a list of all available named keys).
Can You remap a key to another key?
In the latest version of PowerToys, you can also remap several keys on the keyboard with some other keys, or you can even assign certain shortcut keys to another key on your keyboard. For example, if you do not want to use the scroll lock any longer, which is hardly in use nowadays you can map scroll lock to some other key on your keyboard.
Which is the global keymap for the ESC prefix key?
Some of the standard Emacs prefix keys use keymaps that are also found in Lisp variables: esc-map is the global keymap for the ESC prefix key. Thus, the global definitions of all meta characters are actually found here. This map is also the function definition of ESC-prefix .
How do you map a key to a key on the keyboard?
After you type the key, click on ‘OK’. Step 6: Under ‘Mapped To:’, select the key from the drop-down menu or click on ‘Type Key’. Now type the key again, and click on ‘OK’. Here, I am mapping the ‘Scroll Lock’ key to the Windows key on the keyboard.