Am 01.08.2019 um 14:49 schrieb Kai Weber:
I found out about 'setglobal' and read the documentation. It seems I am
still confused and think that 'set' is more global than 'setglobal'
despite the name suggests.
I tried to set my spelllang with setglobal
First note that spelllang is a "buffer-local" option [1]:
The "local" value is the currently active value for the buffer.
The "global" value is used to initialize the "local" value of a newly created
buffer.
setglobal spelllang=en,de
=> This does not modify the active value.
But I found that the spelling in my buffer did not checked for german
spelling problems.
:verbose set spellang
spellang=en
But
:verbose setglobal spellang
spelllang=en,de
Last set from ~/.vim/plugin/settings.vim line 34
So, I have to use 'set' instead of 'setglobal' to set spelllang
globally? What is a reasonable use case to use 'setglobal'?
":set" sets both the "local" and the "global" value.
Now the question is, why ":setglobal", when used from a plugin file,
does not initialize the local 'spelllang' value of your file.
:h startup
[...]
2. Process the arguments
The options and file names from the command that start Vim are
inspected. Buffers are created for all files (but not loaded yet).
[...]
4. Load the plugin scripts. *load-plugins*
This does the same as the command: >
:runtime! plugin/**/*.vim
[...]
=> the option values are already initialized when the plugin file is loaded.
In the vimrc and plugin/settings.vim etc, you will want to use ":set".
Most often you will want to use ":setlocal" (interactively and in ftplugin
scripts).
Only in rare cases there is any need to use ":setglobal".
Eg in older Vims, ":setglobal noswapfile" in a BufReadPre autocmd prevents
creation of a swapfile (now there is :noswapfile) keeping the swapfile of
the current buffer. (and should later not forget to again :setg swf)
-----------------------------
[1] a few other options with a local value are "global-local", just to confuse
you a bit more ... A global-local option may or may not have a local value.
When a global-local option has no local value, then :setglobal also changes
the active value.
--
Andy
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