公式のdemo一覧が足りないので、補完。
http://codemirror.net/demo/activeline.html
http://codemirror.net/demo/anywordhint.html
http://codemirror.net/demo/bidi.html
http://codemirror.net/demo/btree.html
http://codemirror.net/demo/buffers.html
http://codemirror.net/demo/changemode.html
http://codemirror.net/demo/closebrackets.html
http://codemirror.net/demo/closetag.html
http://codemirror.net/demo/complete.html
http://codemirror.net/demo/emacs.html
http://codemirror.net/demo/folding.html
http://codemirror.net/demo/fullscreen.html
http://codemirror.net/demo/hardwrap.html
http://codemirror.net/demo/html5complete.html
http://codemirror.net/demo/indentwrap.html
http://codemirror.net/demo/lint.html
http://codemirror.net/demo/loadmode.html
http://codemirror.net/demo/marker.html
http://codemirror.net/demo/markselection.html
http://codemirror.net/demo/matchhighlighter.html
http://codemirror.net/demo/matchtags.html
http://codemirror.net/demo/merge.html
http://codemirror.net/demo/multiplex.html
http://codemirror.net/demo/mustache.html
http://codemirror.net/demo/panel.html
http://codemirror.net/demo/placeholder.html
http://codemirror.net/demo/preview.html
http://codemirror.net/demo/requirejs.html
http://codemirror.net/demo/resize.html
http://codemirror.net/demo/rulers.html
http://codemirror.net/demo/runmode.html
http://codemirror.net/demo/search.html
http://codemirror.net/demo/simplemode.html
http://codemirror.net/demo/simplescrollbars.html
http://codemirror.net/demo/spanaffectswrapping_shim.html
http://codemirror.net/demo/sublime.html
http://codemirror.net/demo/tern.html
http://codemirror.net/demo/theme.html
http://codemirror.net/demo/trailingspace.html
http://codemirror.net/demo/variableheight.html
http://codemirror.net/demo/vim.html
http://codemirror.net/demo/visibletabs.html
http://codemirror.net/demo/widget.html
http://codemirror.net/demo/xmlcomplete.html