xref: /vim-8.2.3635/runtime/indent/teraterm.vim (revision 079ba76a) 
1" Vim indent file
2" Language:	Tera Term Language (TTL)
3"		Based on Tera Term Version 4.100
4" Maintainer:	Ken Takata
5" URL:		https://github.com/k-takata/vim-teraterm
6" Last Change:	2021-10-18
7" Filenames:	*.ttl
8" License:	VIM License
9
10if exists("b:did_indent")
11  finish
12endif
13let b:did_indent = 1
14
15setlocal nosmartindent
16setlocal noautoindent
17setlocal indentexpr=GetTeraTermIndent(v:lnum)
18setlocal indentkeys=!^F,o,O,e
19setlocal indentkeys+==elseif,=endif,=loop,=next,=enduntil,=endwhile
20
21let b:undo_indent = "setl ai< inde< indk< si<"
22
23if exists("*GetTeraTermIndent")
24  finish
25endif
26
27function! GetTeraTermIndent(lnum)
28  let l:prevlnum = prevnonblank(a:lnum-1)
29  if l:prevlnum == 0
30    " top of file
31    return 0
32  endif
33
34  " grab the previous and current line, stripping comments.
35  let l:prevl = substitute(getline(l:prevlnum), ';.*$', '', '')
36  let l:thisl = substitute(getline(a:lnum), ';.*$', '', '')
37  let l:previ = indent(l:prevlnum)
38
39  let l:ind = l:previ
40
41  if l:prevl =~ '^\s*if\>.*\<then\>'
42    " previous line opened a block
43    let l:ind += shiftwidth()
44  endif
45  if l:prevl =~ '^\s*\%(elseif\|else\|do\|until\|while\|for\)\>'
46    " previous line opened a block
47    let l:ind += shiftwidth()
48  endif
49  if l:thisl =~ '^\s*\%(elseif\|else\|endif\|enduntil\|endwhile\|loop\|next\)\>'
50    " this line closed a block
51    let l:ind -= shiftwidth()
52  endif
53
54  return l:ind
55endfunction
56
57" vim: ts=8 sw=2 sts=2
58