Mercurial > vim
diff runtime/indent/yaml.vim @ 3996:b3f3237a3d72
Update runtime files.
author | Bram Moolenaar <bram@vim.org> |
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date | Wed, 05 Dec 2012 19:01:43 +0100 |
parents | |
children | c590de398af9 |
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new file mode 100644 --- /dev/null +++ b/runtime/indent/yaml.vim @@ -0,0 +1,132 @@ +" Vim indent file +" Language: YAML +" Maintainer: Nikolai Pavlov <zyx.vim@gmail.com> + +" Only load this indent file when no other was loaded. +if exists('b:did_indent') + finish +endif + +let s:save_cpo = &cpo +set cpo&vim + +let b:did_indent = 1 + +setlocal indentexpr=GetYAMLIndent(v:lnum) +setlocal indentkeys=!^F,o,O,0#,0},0],<:>,- +setlocal nosmartindent + +let b:undo_indent = 'setlocal indentexpr< indentkeys< smartindent<' + +" Only define the function once. +if exists('*GetYAMLIndent') + finish +endif + +if exists('*shiftwidth') + let s:shiftwidth = function('shiftwidth') +else + function s:shiftwidth() + return &shiftwidth + endfunction +endif + +function s:FindPrevLessIndentedLine(lnum, ...) + let prevlnum = prevnonblank(a:lnum-1) + let curindent = a:0 ? a:1 : indent(a:lnum) + while prevlnum + \&& indent(prevlnum) >= curindent + \&& getline(prevlnum) !~# '^\s*#' + let prevlnum = prevnonblank(prevlnum-1) + endwhile + return prevlnum +endfunction + +function s:FindPrevLEIndentedLineMatchingRegex(lnum, regex) + let plilnum = s:FindPrevLessIndentedLine(a:lnum, indent(a:lnum)+1) + while plilnum && getline(plilnum) !~# a:regex + let plilnum = s:FindPrevLessIndentedLine(plilnum) + endwhile + return plilnum +endfunction + +let s:mapkeyregex='\v^\s*%(\''%([^'']|'''')*\'''. + \ '|\"%([^"\\]|\\.)*\"'. + \ '|%(%(\:\ )@!.)*)\:%(\ |$)' +let s:liststartregex='\v^\s*%(\-%(\ |$))' + +function GetYAMLIndent(lnum) + if a:lnum == 1 || !prevnonblank(a:lnum-1) + return 0 + endif + + let prevlnum = prevnonblank(a:lnum-1) + let previndent = indent(prevlnum) + + let line = getline(a:lnum) + if line =~# '^\s*#' && getline(a:lnum-1) =~# '^\s*#' + " Comment blocks should have identical indent + return previndent + elseif line =~# '^\s*[\]}]' + " Lines containing only closing braces should have previous indent + return indent(s:FindPrevLessIndentedLine(a:lnum)) + endif + + " Ignore comment lines when calculating indent + while getline(prevlnum) =~# '^\s*#' + let prevlnum = prevnonblank(prevlnum-1) + if !prevlnum + return previndent + endif + endwhile + + let prevline = getline(prevlnum) + let previndent = indent(prevlnum) + + " Any examples below assume that shiftwidth=2 + if prevline =~# '\v[{[:]$|[:-]\ [|>][+\-]?%(\s+\#.*|\s*)$' + " Mapping key: + " nested mapping: ... + " + " - { + " key: [ + " list value + " ] + " } + " + " - |- + " Block scalar without indentation indicator + return previndent+s:shiftwidth() + elseif prevline =~# '\v[:-]\ [|>]%(\d+[+\-]?|[+\-]?\d+)%(\#.*|\s*)$' + " - |+2 + " block scalar with indentation indicator + "#^^ indent+2, not indent+shiftwidth + return previndent + str2nr(matchstr(prevline, + \'\v([:-]\ [|>])@<=[+\-]?\d+%([+\-]?%(\s+\#.*|\s*)$)@=')) + elseif prevline =~# '\v\"%([^"\\]|\\.)*\\$' + " "Multiline string \ + " with escaped end" + let qidx = match(prevline, '\v\"%([^"\\]|\\.)*\\') + return virtcol([prevlnum, qidx+1]) + elseif line =~# s:liststartregex + " List line should have indent equal to previous list line unless it was + " caught by one of the previous rules + return indent(s:FindPrevLEIndentedLineMatchingRegex(a:lnum, + \ s:liststartregex)) + elseif line =~# s:mapkeyregex + " Same for line containing mapping key + return indent(s:FindPrevLEIndentedLineMatchingRegex(a:lnum, + \ s:mapkeyregex)) + elseif prevline =~# '^\s*- ' + " - List with + " multiline scalar + return previndent+2 + elseif prevline =~# s:mapkeyregex + " Mapping with: value + " that is multiline scalar + return previndent+s:shiftwidth() + endif + return previndent +endfunction + +let &cpo = s:save_cpo