significantly refactored code, and added support for file-based snippets and delimeters before snippet triggers

snip/after/plugin/snipMate.vim

@@ -0,0 +1,23 @@
+" These are the mappings for snipMate.vim. Putting it here ensures that it 
+" will be mapped after other plugins such as supertab.vim.
+if exists('s:did_snips_mappings') || &cp || version < 700
+	fini
+en
+let s:did_snips_mappings = 1
+
+ino <tab> <c-r>=TriggerSnippet()<cr>
+snor <tab> <esc>i<right><c-r>=TriggerSnippet()<cr>
+snor <bs> b<bs>
+snor ' b<bs>'
+snor <right> <esc>a
+snor <left> <esc>bi
+
+" By default load snippets in ~/.vim/snippets/<filetype>
+if isdirectory($HOME.'/.vim/snippets')
+	if isdirectory($HOME.'/.vim/snippets/_')
+		cal ExtractSnips($HOME.'/.vim/snippets/_', '_')
+	en
+	au FileType * if !exists('s:did_'.&ft) && 
+					\ isdirectory($HOME.'/.vim/snippets/'.&ft)
+					\| cal ExtractSnips($HOME.'/.vim/snippets/'.&ft, &ft) | en
+en