1 files changed, 72 insertions, 0 deletions
diff --git a/runtime/indent/vb.vim b/runtime/indent/vb.vim
new file mode 100644
index 000000000..515e4dc6b
--- /dev/null
+++ b/runtime/indent/vb.vim
@@ -0,0 +1,72 @@
+" Vim indent file
+" Language:	VisualBasic (ft=vb) / Basic (ft=basic) / SaxBasic (ft=vb)
+" Author:	Johannes Zellner <johannes@zellner.org>
+" Last Change:	Tue, 27 Apr 2004 14:54:59 CEST
+
+if exists("b:did_indent")
+    finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=VbGetIndent(v:lnum)
+setlocal indentkeys&
+setlocal indentkeys+==~else,=~elseif,=~end,=~wend,=~case,=~next,=~select,~=loop,<:>
+
+" Only define the function once.
+if exists("*VbGetIndent")
+    finish
+endif
+
+fun! VbGetIndent(lnum)
+    " labels and preprocessor get zero indent immediately
+    let this_line = getline(a:lnum)
+    let LABELS_OR_PREPROC = '^\s*\(\<\k\+\>:\s*$\|#.*\)'
+    if this_line =~? LABELS_OR_PREPROC
+	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
+	    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*\<\(begin\|\%(\%(private\|public\|friend\)\s\+\)\=\%(function\|sub\|property\)\|select\|case\|default\|if\>.\{-}\<then\>\s*$\|else\|elseif\|do\|for\|while\|enum\|with\)\>'
+	let ind = ind + &sw
+    endif
+
+    " Subtract
+    if this_line =~? '^\s*\<end\>\s\+\<select\>'
+	if previous_line !~? '^\s*\<select\>'
+	    let ind = ind - 2 * &sw
+	else
+	    " this case is for an empty 'select' -- 'end select'
+	    " (w/o any case statements) like:
+	    "
+	    " select case readwrite
+	    " end select
+	    let ind = ind - &sw
+	endif
+    elseif this_line =~? '^\s*\<\(end\|else\|until\|loop\|next\|wend\)\>'
+	let ind = ind - &sw
+    elseif this_line =~? '^\s*\<\(case\|default\)\>'
+	if previous_line !~? '^\s*\<select\>'
+	    let ind = ind - &sw
+	endif
+    endif
+
+    return ind
+endfun