69 lines
1.8 KiB
VimL
69 lines
1.8 KiB
VimL
" Description: InstallShield indenter
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" Author: Johannes Zellner <johannes@zellner.org>
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" Last Change: Tue, 27 Apr 2004 14:54:59 CEST
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" Only load this indent file when no other was loaded.
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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=GetIshdIndent(v:lnum)
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setlocal indentkeys&
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setlocal indentkeys+==else,=elseif,=endif,=end,=begin,<:>
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" setlocal indentkeys-=0#
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let b:undo_indent = "setl ai< indentexpr< indentkeys<"
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" Only define the function once.
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if exists("*GetIshdIndent")
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finish
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endif
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fun! GetIshdIndent(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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let LABELS_OR_PREPROC_EXCEPT = '^\s*\<default\+\>:'
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if this_line =~ LABELS_OR_PREPROC && this_line !~ LABELS_OR_PREPROC_EXCEPT
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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 || previous_line =~ LABELS_OR_PREPROC_EXCEPT
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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*\<\(function\|begin\|switch\|case\|default\|if.\{-}then\|else\|elseif\|while\|repeat\)\>'
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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*\<endswitch\>'
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let ind = ind - 2 * shiftwidth()
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elseif this_line =~ '^\s*\<\(begin\|end\|endif\|endwhile\|else\|elseif\|until\)\>'
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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*\<switch\>'
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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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