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79 lines
2.0 KiB
VimL
79 lines
2.0 KiB
VimL
" Vim indent file
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" Language: VisualBasic (ft=vb) / Basic (ft=basic) / SaxBasic (ft=vb)
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" Author: Johannes Zellner <johannes@zellner.org>
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" Last Change: Fri, 18 Jun 2004 07:22:42 CEST
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" Small update 2010 Jul 28 by Maxim Kim
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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setlocal autoindent
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setlocal indentexpr=VbGetIndent(v:lnum)
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setlocal indentkeys&
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setlocal indentkeys+==~else,=~elseif,=~end,=~wend,=~case,=~next,=~select,=~loop,<:>
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let b:undo_indent = "set ai< indentexpr< indentkeys<"
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" Only define the function once.
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if exists("*VbGetIndent")
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finish
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endif
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fun! VbGetIndent(lnum)
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" labels and preprocessor get zero indent immediately
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let this_line = getline(a:lnum)
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let LABELS_OR_PREPROC = '^\s*\(\<\k\+\>:\s*$\|#.*\)'
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if this_line =~? LABELS_OR_PREPROC
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return 0
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endif
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" Find a non-blank line above the current line.
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" Skip over labels and preprocessor directives.
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let lnum = a:lnum
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while lnum > 0
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let lnum = prevnonblank(lnum - 1)
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let previous_line = getline(lnum)
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if previous_line !~? LABELS_OR_PREPROC
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break
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endif
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endwhile
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" Hit the start of the file, use zero indent.
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if lnum == 0
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return 0
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endif
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let ind = indent(lnum)
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" Add
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if previous_line =~? '^\s*\<\(begin\|\%(\%(private\|public\|friend\)\s\+\)\=\%(function\|sub\|property\)\|select\|case\|default\|if\|else\|elseif\|do\|for\|while\|enum\|with\)\>'
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let ind = ind + shiftwidth()
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endif
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" Subtract
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if this_line =~? '^\s*\<end\>\s\+\<select\>'
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if previous_line !~? '^\s*\<select\>'
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let ind = ind - 2 * shiftwidth()
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else
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" this case is for an empty 'select' -- 'end select'
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" (w/o any case statements) like:
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"
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" select case readwrite
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" end select
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let ind = ind - shiftwidth()
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endif
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elseif this_line =~? '^\s*\<\(end\|else\|elseif\|until\|loop\|next\|wend\)\>'
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let ind = ind - shiftwidth()
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elseif this_line =~? '^\s*\<\(case\|default\)\>'
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if previous_line !~? '^\s*\<select\>'
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let ind = ind - shiftwidth()
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endif
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endif
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return ind
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endfun
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" vim:sw=4
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