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- " Description: InstallShield indenter
- " Author: Johannes Zellner <johannes@zellner.org>
- " URL: http://www.zellner.org/vim/indent/ishd.vim
- " Last Change: Tue, 07 Aug 2001 14:49:42 W. Europe Standard Time
-
- " Only load this indent file when no other was loaded.
- if exists("b:did_indent")
- finish
- endif
- let b:did_indent = 1
-
- setlocal indentexpr=GetIshdIndent(v:lnum)
- setlocal indentkeys+==else,=elseif,=endif,=end,=begin
- " setlocal indentkeys-=0#
-
- " Only define the function once.
- if exists("*GetIshdIndent")
- finish
- endif
-
- fun! GetIshdIndent(lnum)
- " labels and preprocessor get zero indent immediately
- let this_line = getline(a:lnum)
- if this_line =~ '^\s*\(\<\k\+\>:\s*$\|#.*\)'
- return 0
- endif
-
- " Find a non-blank line above the current line.
- " Skip over labels and preprocessor directives.
- let lnum = a:lnum
- while lnum > 0
- let lnum = prevnonblank(lnum - 1)
- let previous_line = getline(lnum)
- if previous_line !~ '^\(\s*\<\k\+\>:\s*$\|#.*\)'
- break
- endif
- endwhile
-
- " Hit the start of the file, use zero indent.
- if lnum == 0
- return 0
- endif
-
- let ind = indent(lnum)
-
- " Add
- if previous_line =~ '^\s*\<\(function\|begin\|switch\|case\|default\|if.\{-}then\|else\|elseif\|while\|repeat\)\>'
- let ind = ind + &sw
- endif
-
- " Subtract
- if this_line =~ '^\s*\<endswitch\>'
- let ind = ind - 2 * &sw
- elseif this_line =~ '^\s*\<\(begin\|end\|endif\|endwhile\|else\|elseif\|until\)\>'
- let ind = ind - &sw
- elseif this_line =~ '^\s*\<\(case\|default\)\>'
- if previous_line !~ '^\s*\<switch\>'
- let ind = ind - &sw
- endif
- endif
-
- return ind
- endfun
-