through html tidy before passing it to pandoc. This causes problems on certain sites (e.g. daringfireball.com/markdown) which have well-formed xhtml that causes tidy to choke. Solution is to try pandoc on the original HTML, and run it through tidy only if that fails. This means that a temp file is now always used, even when input comes from a local file or standard input. git-svn-id: https://pandoc.googlecode.com/svn/trunk@1039 788f1e2b-df1e-0410-8736-df70ead52e1b