Problem: User commands cannot handle single args with spaces
Solution: Add the -nargs=_ attribute (Maxim Kim)
-nargs=_ allow user commands to have a single argument with spaces.
For example given the following Test command and TestComplete function:
```
vim9script
def TestComplete(A: string, _: string, _: number): list<string>
var all = ["qqqq", "aaaa", "qq aa"]
return all->matchfuzzy(A)
enddef
command! -nargs=_ -complete=customlist,TestComplete Test echo <q-args>
```
`:Test q a<tab>` should successfully complete `qq aa`
fixes: vim/vim#20102closes: vim/vim#20189f0e874a129
Co-authored-by: Maxim Kim <habamax@gmail.com>
Problem: tests: not checking error numbers properly.
Solution: Add a trailing comma to avoid matching a different error
number with the same prefix (zeertzjq)
closes: vim/vim#1715967fe77d272
Problem: Some plugins have a problem with the error check for using
:command with -complete but without -nargs.
Solution: In legacy script only give a warning message.
cc7eb2aa7a
Align tests with Vim only.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Using freed memory with :comclear while listing commands.
Solution: Bail out when the command list has changed. (closesvim/vim#11440)
cf2594fbf3
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: MS-Windows: internal compile error in uc_list() with VS 17.14
(ibear)
Solution: refactor code slightly (Mike Williams)
fixes: vim/vim#17402closes: vim/vim#174640174d8f386
Co-authored-by: Mike Williams <mrmrdubya@gmail.com>
