How about something like Archy? https://en.wikipedia.org/wiki/Archy#Features It was never polished but you can still play with an old (windows) build: http://users-www.wineme.fb5.uni-siegen.de/home/SebastianDrax...

Edit: or for a gui, something like Enso (for the whole OS) http://humanized.com/enso or Ubiquity https://wiki.mozilla.org/Labs/Ubiquity/Latest_Ubiquity_User_... (for the browser) Both are abandoned open-source projects with a lot of the hard work already done (the internationalized parser in Ubiquity is very nice).