new file mode 100644
--- /dev/null
+++ b/runtime/syntax/snnsnet.vim
@@ -0,0 +1,77 @@
+" Vim syntax file
+" Language:	SNNS network file
+" Maintainer:	Davide Alberani <alberanid@bigfoot.com>
+" Last Change:	28 Apr 2001
+" Version:	0.2
+" URL:		http://digilander.iol.it/alberanid/vim/syntax/snnsnet.vim
+"
+" SNNS http://www-ra.informatik.uni-tuebingen.de/SNNS/
+" is a simulator for neural networks.
+
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+syn match	snnsnetTitle	"no\."
+syn match	snnsnetTitle	"type name"
+syn match	snnsnetTitle	"unit name"
+syn match	snnsnetTitle	"act\( func\)\="
+syn match	snnsnetTitle	"out func"
+syn match	snnsnetTitle	"site\( name\)\="
+syn match	snnsnetTitle	"site function"
+syn match	snnsnetTitle	"source:weight"
+syn match	snnsnetTitle	"unitNo\."
+syn match	snnsnetTitle	"delta x"
+syn match	snnsnetTitle	"delta y"
+syn keyword	snnsnetTitle	typeName unitName bias st position subnet layer sites name target z LLN LUN Toff Soff Ctype
+
+syn match	snnsnetType	"SNNS network definition file [Vv]\d.\d.*" contains=snnsnetNumbers
+syn match	snnsnetType	"generated at.*" contains=snnsnetNumbers
+syn match	snnsnetType	"network name\s*:"
+syn match	snnsnetType	"source files\s*:"
+syn match	snnsnetType	"no\. of units\s*:.*" contains=snnsnetNumbers
+syn match	snnsnetType	"no\. of connections\s*:.*" contains=snnsnetNumbers
+syn match	snnsnetType	"no\. of unit types\s*:.*" contains=snnsnetNumbers
+syn match	snnsnetType	"no\. of site types\s*:.*" contains=snnsnetNumbers
+syn match	snnsnetType	"learning function\s*:"
+syn match	snnsnetType	"pruning function\s*:"
+syn match	snnsnetType	"subordinate learning function\s*:"
+syn match	snnsnetType	"update function\s*:"
+
+syn match	snnsnetSection	"unit definition section"
+syn match	snnsnetSection	"unit default section"
+syn match	snnsnetSection	"site definition section"
+syn match	snnsnetSection	"type definition section"
+syn match	snnsnetSection	"connection definition section"
+syn match	snnsnetSection	"layer definition section"
+syn match	snnsnetSection	"subnet definition section"
+syn match	snnsnetSection	"3D translation section"
+syn match	snnsnetSection	"time delay section"
+
+syn match	snnsnetNumbers	"\d" contained
+syn match	snnsnetComment	"#.*$" contains=snnsnetTodo
+syn keyword	snnsnetTodo	TODO XXX FIXME contained
+
+if version >= 508 || !exists("did_snnsnet_syn_inits")
+  if version < 508
+    let did_snnsnet_syn_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink snnsnetType		Type
+  HiLink snnsnetComment		Comment
+  HiLink snnsnetNumbers		Number
+  HiLink snnsnetSection		Statement
+  HiLink snnsnetTitle		Label
+  HiLink snnsnetTodo		Todo
+
+  delcommand HiLink
+endif
+
+let b:current_syntax = "snnsnet"
+
+" vim: ts=8 sw=2