runtime/syntax/lf.vim

" Vim syntax file
" Language: lf file manager configuration file (lfrc)
" Maintainer: Andis Sprinkis <andis@sprinkis.com>
" Former Maintainer: Cameron Wright
" URL: https://github.com/andis-sprinkis/lf-vim
" Last Change: 10 May 2025
"
" The shell syntax highlighting is configurable. See $VIMRUNTIME/doc/syntax.txt
" lf version: 34

if exists("b:current_syntax") | finish | endif

let s:cpo = &cpo
set cpo&vim

let b:current_syntax = "lf"

"{{{ Comment Matching
syn match lfComment '#.*$'
"}}}

"{{{ String Matching
syn match lfString "'.*'"
syn match lfString '".*"' contains=lfSpecial
"}}}

"{{{ Keywords
syn keyword lfKeyword set setlocal cmd map cmap skipwhite
"}}}

"{{{ Options Keywords
syn keyword lfOptions
  \ anchorfind
  \ autoquit
  \ borderfmt
  \ bottom
  \ calcdirsize
  \ cd
  \ cleaner
  \ clear
  \ clearmaps
  \ cmaps
  \ cmd-capitalize-word
  \ cmd-complete
  \ cmd-delete
  \ cmd-delete-back
  \ cmd-delete-end
  \ cmd-delete-home
  \ cmd-delete-unix-word
  \ cmd-delete-word
  \ cmd-delete-word-back
  \ cmd-end
  \ cmd-enter
  \ cmd-escape
  \ cmd-history-next
  \ cmd-history-prev
  \ cmd-home
  \ cmd-interrupt
  \ cmd-left
  \ cmd-lowercase-word
  \ cmd-menu-accept
  \ cmd-menu-complete
  \ cmd-menu-complete-back
  \ cmd-right
  \ cmd-transpose
  \ cmd-transpose-word
  \ cmd-uppercase-word
  \ cmd-word
  \ cmd-word-back
  \ cmd-yank
  \ cmds
  \ copy
  \ copyfmt
  \ cursoractivefmt
  \ cursorparentfmt
  \ cursorpreviewfmt
  \ cut
  \ cutfmt
  \ delete
  \ dircache
  \ dircounts
  \ dirfirst
  \ dironly
  \ dirpreviews
  \ doc
  \ down
  \ draw
  \ drawbox
  \ dupfilefmt
  \ echo
  \ echoerr
  \ echomsg
  \ errorfmt
  \ filesep
  \ filter
  \ find
  \ find-back
  \ find-next
  \ find-prev
  \ findlen
  \ glob-select
  \ glob-unselect
  \ globfilter
  \ globsearch
  \ half-down
  \ half-up
  \ hidden
  \ hiddenfiles
  \ high
  \ history
  \ icons
  \ ifs
  \ ignorecase
  \ ignoredia
  \ incfilter
  \ incsearch
  \ info
  \ infotimefmtnew
  \ infotimefmtold
  \ invert
  \ invert-below
  \ jump-next
  \ jump-prev
  \ load
  \ locale
  \ low
  \ maps
  \ mark-load
  \ mark-remove
  \ mark-save
  \ middle
  \ mouse
  \ number
  \ numberfmt
  \ on-cd
  \ on-focus-gained
  \ on-focus-lost
  \ on-init
  \ on-quit
  \ on-redraw
  \ on-select
  \ open
  \ page-down
  \ page-up
  \ paste
  \ period
  \ pre-cd
  \ preserve
  \ preview
  \ previewer
  \ promptfmt
  \ push
  \ quit
  \ ratios
  \ read
  \ redraw
  \ relativenumber
  \ reload
  \ rename
  \ reverse
  \ roundbox
  \ rulerfmt
  \ scroll-down
  \ scroll-up
  \ scrolloff
  \ search
  \ search-back
  \ search-next
  \ search-prev
  \ select
  \ selectfmt
  \ selmode
  \ setfilter
  \ shell
  \ shell-async
  \ shell-pipe
  \ shell-wait
  \ shellflag
  \ shellopts
  \ showbinds
  \ sixel
  \ smartcase
  \ smartdia
  \ sortby
  \ source
  \ statfmt
  \ sync
  \ tabstop
  \ tag
  \ tag-toggle
  \ tagfmt
  \ tempmarks
  \ timefmt
  \ toggle
  \ top
  \ truncatechar
  \ truncatepct
  \ unselect
  \ up
  \ updir
  \ waitmsg
  \ watch
  \ wrapscan
  \ wrapscroll
"}}}

"{{{ Special Matching
syn match lfSpecial '\v\<[^>]+\>'
syn match lfSpecial '\v\\(["\\abfnrtv]|\o+)'
"}}}

"{{{ Shell Script Matching for cmd
let s:shell_syntax = get(g:, 'lf_shell_syntax', "syntax/sh.vim")
let s:shell_syntax = get(b:, 'lf_shell_syntax', s:shell_syntax)

unlet b:current_syntax
exe 'syn include @Shell '.s:shell_syntax
syn iskeyword @,-
let b:current_syntax = "lf"

syn region lfCommand matchgroup=lfCommandMarker start=' \zs:\ze' end='$' keepend transparent
syn region lfCommand matchgroup=lfCommandMarker start=' \zs:{{\ze' end='}}' keepend transparent
syn region lfShell matchgroup=lfShellMarker start=' \zs[$!%&]\ze' end='$' keepend contains=@Shell
syn region lfShell matchgroup=lfShellMarker start=' \zs[$!%&]{{\ze' end='}}' keepend contains=@Shell
"}}}

"{{{ Link Highlighting
hi def link lfComment       Comment
hi def link lfSpecial       SpecialChar
hi def link lfString        String
hi def link lfKeyword       Statement
hi def link lfOptions       Constant
hi def link lfCommandMarker Special
hi def link lfShellMarker   Special
"}}}

let &cpo = s:cpo
unlet s:cpo