patch 9.0.1958: cannot complete option values Commit: https://github.com/vim/vim/commit/900894b09a95398dfc75599e9f0aa2ea25723384 Author: Yee Cheng Chin <ychin.git@gmail.com> Date: Fri Sep 29 20:42:32 2023 +0200 patch 9.0.1958: cannot complete option values Problem: cannot complete option values Solution: Add completion functions for several options Add cmdline tab-completion for setting string options Add tab-completion for setting string options on the cmdline using `:set=` (along with `:set+=` and `:set-=`). The existing tab completion for setting options currently only works when nothing is typed yet, and it only fills in with the existing value, e.g. when the user does `:set diffopt=<Tab>` it will be completed to `set diffopt=internal,filler,closeoff` and nothing else. This isn't too useful as a user usually wants auto-complete to suggest all the possible values, such as 'iblank', or 'algorithm:patience'. For set= and set+=, this adds a new optional callback function for each option that can be invoked when doing completion. This allows for each option to have control over how completion works. For example, in 'diffopt', it will suggest the default enumeration, but if `algorithm:` is selected, it will further suggest different algorithm types like 'meyers' and 'patience'. When using set=, the existing option value will be filled in as the first choice to preserve the existing behavior. When using set+= this won't happen as it doesn't make sense. For flag list options (e.g. 'mouse' and 'guioptions'), completion will take into account existing typed values (and in the case of set+=, the existing option value) to make sure it doesn't suggest duplicates. For set-=, there is a new `ExpandSettingSubtract` function which will handle flag list and comma-separated options smartly, by only suggesting values that currently exist in the option. Note that Vim has some existing code that adds special handling for 'filetype', 'syntax', and misc dir options like 'backupdir'. This change preserves them as they already work, instead of converting to the new callback API for each option. closes: #13182 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>

" Vim compiler file
" Compiler:     splint/lclint (C source code checker)
" Maintainer:   Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
" Splint Home:	http://www.splint.org/
" Last Change:  2019 Jul 23
" $Revision: 1.3 $

if exists("current_compiler")
  finish
endif
let current_compiler = "splint"

if exists(":CompilerSet") != 2		" older Vim always used :setlocal
  command -nargs=* CompilerSet setlocal <args>
endif

let s:cpo_save = &cpo
set cpo-=C

" adapt this if you want to check more than one file at a time.
" put command line options in .splintrc or ~/.splintrc
CompilerSet makeprg=splint\ %:S

" Note: when using the new array bounds checking flags:  Each warning
" usually has several lines and several references to source code mostly
" within one or two lines (see sample warning below).  The easiest way
" not to mess up file name detection and not to jump to all positions is
" to add something like
"	-linelen 500 +boundscompacterrormessages
" to your .splintrc and 'set cmdheight=4' or more.
" TODO: reliable way to distinguish file names and constraints.
"
" sample warning (generic):
"
"foo.c:1006:12: Clauses exit with var referencing local storage in one
"		       case, fresh storage in other case
"   foo.c:1003:2: Fresh storage var allocated
"
" sample warning (bounds checking):
"
"bounds.c: (in function updateEnv)
"bounds.c:10:5: Possible out-of-bounds store:
"    strcpy(str, tmp)
"    Unable to resolve constraint:
"    requires maxSet(str @ bounds.c:10:13) >= maxRead(getenv("MYENV") @
"    bounds.c:6:9)
"     needed to satisfy precondition:
"    requires maxSet(str @ bounds.c:10:13) >= maxRead(tmp @ bounds.c:10:18)
"     derived from strcpy precondition: requires maxSet(<parameter 1>) >=
"    maxRead(<parameter 2>)
"  A memory write may write to an address beyond the allocated buffer. (Use
"  -boundswrite to inhibit warning)

CompilerSet errorformat=%OLCLint*m,
	\%OSplint*m,
	\%f(%l\\,%c):\ %m,
	\%*[\ ]%f:%l:%c:\ %m,
	\%*[\ ]%f:%l:\ %m,
	\%*[^\"]\"%f\"%*\\D%l:\ %m,
	\\"%f\"%*\\D%l:\ %m,
	\%A%f:%l:%c:\ %m,
	\%A%f:%l:%m,
	\\"%f\"\\,
	\\ line\ %l%*\\D%c%*[^\ ]\ %m,
	\%D%*\\a[%*\\d]:\ Entering\ directory\ `%f',
	\%X%*\\a[%*\\d]:\ Leaving\ directory\ `%f',
	\%DMaking\ %*\\a\ in\ %f,
	\%C\ %#%m

let &cpo = s:cpo_save
unlet s:cpo_save