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-rw-r--r--runtime/indent/ishd.vim68
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+" Description: InstallShield indenter
+" Author: Johannes Zellner <johannes@zellner.org>
+" Last Change: Tue, 27 Apr 2004 14:54:59 CEST
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+setlocal autoindent
+setlocal indentexpr=GetIshdIndent(v:lnum)
+setlocal indentkeys&
+setlocal indentkeys+==else,=elseif,=endif,=end,=begin,<:>
+" setlocal indentkeys-=0#
+
+let b:undo_indent = "setl ai< indentexpr< indentkeys<"
+
+" 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)
+ let LABELS_OR_PREPROC = '^\s*\(\<\k\+\>:\s*$\|#.*\)'
+ let LABELS_OR_PREPROC_EXCEPT = '^\s*\<default\+\>:'
+ if this_line =~ LABELS_OR_PREPROC && this_line !~ LABELS_OR_PREPROC_EXCEPT
+ 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 !~ LABELS_OR_PREPROC || previous_line =~ LABELS_OR_PREPROC_EXCEPT
+ 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 + shiftwidth()
+ endif
+
+ " Subtract
+ if this_line =~ '^\s*\<endswitch\>'
+ let ind = ind - 2 * shiftwidth()
+ elseif this_line =~ '^\s*\<\(begin\|end\|endif\|endwhile\|else\|elseif\|until\)\>'
+ let ind = ind - shiftwidth()
+ elseif this_line =~ '^\s*\<\(case\|default\)\>'
+ if previous_line !~ '^\s*\<switch\>'
+ let ind = ind - shiftwidth()
+ endif
+ endif
+
+ return ind
+endfun