xlit
Xlit is a tool for transliterating text from one writing system to another. It supports Unicode and provides a variety of tools for entering non-ASCII characters. It can be told to restrict the transliteration to material enclosed in specified delimiters or to material not enclosed in delimiters, and it can change one type of delimiter into another. It can also execute external commands or load plugins written in Tcl, the utility of which is that this allows these other programs to be applied only to selected portions of the input text. http://billposer.org/Software/xlit.html
