Update runtime files. Add support for J.
diff --git a/runtime/indent/j.vim b/runtime/indent/j.vim
new file mode 100644
index 0000000..056c20a
--- /dev/null
+++ b/runtime/indent/j.vim
@@ -0,0 +1,37 @@
+" Vim indent file
+" Language: J
+" Maintainer: David Bürgin <676c7473@gmail.com>
+" Last Change: 2013-09-21
+
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetJIndent()
+setlocal indentkeys-=0{,0},\:,0#
+setlocal indentkeys+=0),=case.,=catch.,=catchd.,=catcht.,=do.,=else.,=elseif.,=end.,=fcase.
+
+let b:undo_indent = "setl indk< inde<"
+
+if exists("*GetJIndent")
+ finish
+endif
+
+function GetJIndent()
+ let prevlnum = prevnonblank(v:lnum-1)
+ if prevlnum == 0
+ return 0
+ endif
+
+ let indent = indent(prevlnum)
+ if getline(prevlnum) =~# '^\s*\%(case\|catch[dt]\=\|do\|else\%(if\)\=\|fcase\|for\%(_\a\k*\)\=\|if\|select\|try\|whil\%(e\|st\)\)\.'
+ if getline(prevlnum) !~# '\<end\.'
+ let indent += &shiftwidth
+ endif
+ endif
+ if getline(v:lnum) =~# '^\s*\%(case\|catch[dt]\=\|do\|else\%(if\)\=\|end\|fcase\)\.'
+ let indent -= &shiftwidth
+ endif
+ return indent
+endfunction