xref: /vim-8.2.3635/runtime/indent/tcsh.vim (revision 2286304c)
1" Vim indent file
2" Language:		C-shell (tcsh)
3" Maintainer:		Doug Kearns <[email protected]>
4" Previous Maintainer:	Gautam Iyer <[email protected]> where NoSpam=gmail (Original Author)
5" Last Change:		2021 Oct 15
6
7" Only load this indent file when no other was loaded.
8if exists("b:did_indent")
9    finish
10endif
11
12let b:did_indent = 1
13
14setlocal indentexpr=TcshGetIndent()
15setlocal indentkeys+=e,0=end
16setlocal indentkeys-=0{,0},0),:,0#
17
18let b:undo_indent = "setl inde< indk<"
19
20" Only define the function once.
21if exists("*TcshGetIndent")
22    finish
23endif
24
25function TcshGetIndent()
26    " Find a non-blank line above the current line.
27    let lnum = prevnonblank(v:lnum - 1)
28
29    " Hit the start of the file, use zero indent.
30    if lnum == 0
31	return 0
32    endif
33
34    " Add indent if previous line begins with while or foreach
35    " OR line ends with case <str>:, default:, else, then or \
36    let ind = indent(lnum)
37    let line = getline(lnum)
38    if line =~ '\v^\s*%(while|foreach)>|^\s*%(case\s.*:|default:|else)\s*$|%(<then|\\)$'
39	let ind = ind + shiftwidth()
40    endif
41
42    if line =~ '\v^\s*breaksw>'
43	let ind = ind - shiftwidth()
44    endif
45
46    " Subtract indent if current line has on end, endif, endsw, case commands
47    let line = getline(v:lnum)
48    if line =~ '\v^\s*%(else|end|endif|endsw)\s*$'
49	let ind = ind - shiftwidth()
50    endif
51
52    return ind
53endfunction
54