neovim/runtime/indent/rst.vim
Christian Clason ae7ab90159 vim-patch:0382f05dbd65
runtime: Set b:undo_indent where missing (vim/vim#12944)

0382f05dbd

Co-authored-by: dkearns <dougkearns@gmail.com>
2023-08-29 11:32:46 +02:00

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" Vim indent file
" Vim reST indent file
" Language: reStructuredText Documentation Format
" Maintainer: Marshall Ward <marshall.ward@gmail.com>
" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
" Latest Revision: 2020-03-31
" 2023 Aug 28 by Vim Project (undo_indent)
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal indentexpr=GetRSTIndent()
setlocal indentkeys=!^F,o,O
setlocal nosmartindent
let b:undo_indent = "setlocal indentexpr< indentkeys< smartindent<"
if exists("*GetRSTIndent")
finish
endif
let s:itemization_pattern = '^\s*[-*+]\s'
let s:enumeration_pattern = '^\s*\%(\d\+\|#\)\.\s\+'
let s:note_pattern = '^\.\. '
function! s:get_paragraph_start()
let paragraph_mark_start = getpos("'{")[1]
return getline(paragraph_mark_start) =~ '\S' ? paragraph_mark_start : paragraph_mark_start + 1
endfunction
function GetRSTIndent()
let lnum = prevnonblank(v:lnum - 1)
if lnum == 0
return 0
endif
let ind = indent(lnum)
let line = getline(lnum)
let psnum = s:get_paragraph_start()
if psnum != 0
if getline(psnum) =~ s:note_pattern
let ind = 3
endif
endif
if line =~ s:itemization_pattern
let ind += 2
elseif line =~ s:enumeration_pattern
let ind += matchend(line, s:enumeration_pattern)
endif
let line = getline(v:lnum - 1)
" Indent :FIELD: lines. Dont match if there is no text after the field or
" if the text ends with a sent-ender.
if line =~ '^:.\+:\s\{-1,\}\S.\+[^.!?:]$'
return matchend(line, '^:.\{-1,}:\s\+')
endif
if line =~ '^\s*$'
execute lnum
call search('^\s*\%([-*+]\s\|\%(\d\+\|#\)\.\s\|\.\.\|$\)', 'bW')
let line = getline('.')
if line =~ s:itemization_pattern
let ind -= 2
elseif line =~ s:enumeration_pattern
let ind -= matchend(line, s:enumeration_pattern)
elseif line =~ '^\s*\.\.'
let ind -= 3
endif
endif
return ind
endfunction