ref: 8fbed4dabe09f7b9572da477e3f0009dd9aa72dd
dir: /lib/vimfiles/indent/vim.vim/
" Vim indent file
" Language: Vim script
" Maintainer: Bram Moolenaar <Bram@vim.org>
" Last Change: 2005 Jul 06
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal indentexpr=GetVimIndent()
setlocal indentkeys+==end,=else,=cat,=fina,=END,0\\
" Only define the function once.
if exists("*GetVimIndent")
finish
endif
function GetVimIndent()
" Find a non-blank line above the current line.
let lnum = prevnonblank(v:lnum - 1)
" If the current line doesn't start with '\' and below a line that starts
" with '\', use the indent of the line above it.
if getline(v:lnum) !~ '^\s*\\'
while lnum > 0 && getline(lnum) =~ '^\s*\\'
let lnum = lnum - 1
endwhile
endif
" At the start of the file use zero indent.
if lnum == 0
return 0
endif
" Add a 'shiftwidth' after :if, :while, :try, :catch, :finally, :function
" and :else. Add it three times for a line that starts with '\' after
" a line that doesn't (or g:vim_indent_cont if it exists).
let ind = indent(lnum)
if getline(v:lnum) =~ '^\s*\\' && v:lnum > 1 && getline(lnum) !~ '^\s*\\'
if exists("g:vim_indent_cont")
let ind = ind + g:vim_indent_cont
else
let ind = ind + &sw * 3
endif
elseif getline(lnum) =~ '\(^\||\)\s*\(if\|wh\%[ile]\|for\|try\|cat\%[ch]\|fina\%[lly]\|fu\%[nction]\|el\%[seif]\)\>'
let ind = ind + &sw
elseif getline(lnum) =~ '^\s*aug\%[roup]' && getline(lnum) !~ '^\s*aug\%[roup]\s*!\=\s\+END'
let ind = ind + &sw
endif
" If the previous line contains an "end" after a pipe, but not in an ":au"
" command. And not when there is a backslash before the pipe.
" And when syntax HL is enabled avoid a match inside a string.
let line = getline(lnum)
let i = match(line, '[^\\]|\s*\(ene\@!\)')
if i > 0 && line !~ '^\s*au\%[tocmd]'
if !has('syntax_items') || synIDattr(synID(lnum, i + 2, 1), "name") !~ '\(Comment\|String\)$'
let ind = ind - &sw
endif
endif
" Subtract a 'shiftwidth' on a :endif, :endwhile, :catch, :finally, :endtry,
" :endfun, :else and :augroup END.
if getline(v:lnum) =~ '^\s*\(ene\@!\|cat\|fina\|el\|aug\%[roup]\s*!\=\s\+END\)'
let ind = ind - &sw
endif
return ind
endfunction
" vim:sw=2