92 lines
1.9 KiB
VimL
92 lines
1.9 KiB
VimL
if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
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" Vim ftplugin file
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" Language: Erlang
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" Author: Oscar Hellström <oscar@oscarh.net>
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" Contributors: Ricardo Catalinas Jiménez <jimenezrick@gmail.com>
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" Eduardo Lopez (http://github.com/tapichu)
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" License: Vim license
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" Version: 2012/01/25
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if exists('b:did_ftplugin')
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finish
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else
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let b:did_ftplugin = 1
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endif
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if exists('s:did_function_definitions')
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call s:SetErlangOptions()
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finish
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else
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let s:did_function_definitions = 1
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endif
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let s:cpo_save = &cpo
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set cpo&vim
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if !exists('g:erlang_keywordprg')
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let g:erlang_keywordprg = 'erl -man'
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endif
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if !exists('g:erlang_folding')
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let g:erlang_folding = 0
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endif
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let s:erlang_fun_begin = '^\a\w*(.*$'
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let s:erlang_fun_end = '^[^%]*\.\s*\(%.*\)\?$'
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function s:SetErlangOptions()
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if g:erlang_folding
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setlocal foldmethod=expr
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setlocal foldexpr=GetErlangFold(v:lnum)
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setlocal foldtext=ErlangFoldText()
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endif
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setlocal comments=:%%%,:%%,:%
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setlocal commentstring=%%s
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setlocal formatoptions+=ro
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let &l:keywordprg = g:erlang_keywordprg
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endfunction
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function GetErlangFold(lnum)
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let lnum = a:lnum
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let line = getline(lnum)
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if line =~ s:erlang_fun_end
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return '<1'
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endif
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if line =~ s:erlang_fun_begin && foldlevel(lnum - 1) == 1
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return '1'
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endif
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if line =~ s:erlang_fun_begin
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return '>1'
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endif
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return '='
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endfunction
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function ErlangFoldText()
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let line = getline(v:foldstart)
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let foldlen = v:foldend - v:foldstart + 1
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let lines = ' ' . foldlen . ' lines: ' . substitute(line, "[\ \t]*", '', '')
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if foldlen < 10
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let lines = ' ' . lines
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endif
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let retval = '+' . v:folddashes . lines
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return retval
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endfunction
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call s:SetErlangOptions()
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let b:undo_ftplugin = "setlocal foldmethod< foldexpr< foldtext<"
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\ . " comments< commentstring< formatoptions<"
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let &cpo = s:cpo_save
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unlet s:cpo_save
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endif
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