CafeTran

This indeed is one of my favorite subjects. This time it is about the following cases:

How can I have CT recognize "nut" and "lock nut" without pipe?

Why should it, and why not a pipe character?

• the comma (or maybe a period etc.) is something different than a letter
  
• the pipe will lead to unwanted results and trigger for "nutting", "nuttiness" etc, eh, not the best example, I know)
• we cannot always blame the source text for its mistakes
  

So how can I proceed without opening Pandora's box?