Links
- Online docs
- Internal Variables
- a:000
- 'runtimepath'
echo globpath(&rtp, "**/README.txt")
- $VIMRUNTIME
set runtimepath=~/vimruntime,/mygroup/vim,$VIMRUNTIME
- :runtime
- e.g.
runtime plugin/*.vim- When [!] is included, all found files are sourced. When it is not included only the first found file is sourced.
- e.g.
An internal variable name can be made up of letters, digits and '_'. But it cannot start with a digit. It's also possible to use curly braces, see curly-braces-names. An internal variable is created with the ":let" command. An internal variable is explicitly destroyed with the ":unlet". Using a name that is not an internal variable or refers to a variable that has been destroyed results in an error.
Prefixes
| type | prefix | description |
|---|---|---|
| None | In a function: local to a function; otherwise: global | |
| buffer-variable | b: | Local to the current buffer. |
| window-variable | w: | Local to the current window. |
| tabpage-variable | t: | Local to the current tab page. |
| global-variable | g: | Global. |
| local-variable | l: | Local to a function. |
| script-variable | s: | Local to a |
| function-argument | a: | Function argument (only inside a function). |
| vim-variable | v: | Global, predefined by Vim. |
The scope name by itself can be used as a Dictionary. For example, to
delete all script-local variables:
for k in keys(s:) unlet s:[k] endfor
Selected Variables
changedtick
See b:changedtick
- b:changedtick
- The total number of changes to the current buffer. It is incremented for each change. An undo command is also a change in this case.
This can be used to perform an action only when the buffer has changed.
Example:
:if my_changedtick != b:changedtick : let my_changedtick = b:changedtick : call My_Update() :endif