xref: /vim-8.2.3635/runtime/indent/rst.vim (revision d1caa941)
1" Vim indent file
2" Vim reST indent file
3" Language: reStructuredText Documentation Format
4" Maintainer: Marshall Ward <[email protected]>
5" Previous Maintainer: Nikolai Weibull <[email protected]>
6" Latest Revision: 2020-03-31
7
8if exists("b:did_indent")
9  finish
10endif
11let b:did_indent = 1
12
13setlocal indentexpr=GetRSTIndent()
14setlocal indentkeys=!^F,o,O
15setlocal nosmartindent
16
17if exists("*GetRSTIndent")
18  finish
19endif
20
21let s:itemization_pattern = '^\s*[-*+]\s'
22let s:enumeration_pattern = '^\s*\%(\d\+\|#\)\.\s\+'
23let s:note_pattern = '^\.\. '
24
25function! s:get_paragraph_start()
26    let paragraph_mark_start = getpos("'{")[1]
27    return getline(paragraph_mark_start) =~ '\S' ? paragraph_mark_start : paragraph_mark_start + 1
28endfunction
29
30function GetRSTIndent()
31  let lnum = prevnonblank(v:lnum - 1)
32  if lnum == 0
33    return 0
34  endif
35
36  let ind = indent(lnum)
37  let line = getline(lnum)
38
39  let psnum = s:get_paragraph_start()
40  if psnum != 0
41      if getline(psnum) =~ s:note_pattern
42          let ind = 3
43      endif
44  endif
45
46  if line =~ s:itemization_pattern
47    let ind += 2
48  elseif line =~ s:enumeration_pattern
49    let ind += matchend(line, s:enumeration_pattern)
50  endif
51
52  let line = getline(v:lnum - 1)
53
54  " Indent :FIELD: lines.  Don’t match if there is no text after the field or
55  " if the text ends with a sent-ender.
56   if line =~ '^:.\+:\s\{-1,\}\S.\+[^.!?:]$'
57     return matchend(line, '^:.\{-1,}:\s\+')
58   endif
59
60  if line =~ '^\s*$'
61    execute lnum
62    call search('^\s*\%([-*+]\s\|\%(\d\+\|#\)\.\s\|\.\.\|$\)', 'bW')
63    let line = getline('.')
64    if line =~ s:itemization_pattern
65      let ind -= 2
66    elseif line =~ s:enumeration_pattern
67      let ind -= matchend(line, s:enumeration_pattern)
68    elseif line =~ '^\s*\.\.'
69      let ind -= 3
70    endif
71  endif
72
73  return ind
74endfunction
75