RE: Help with Flex input matching

[rbejar]

> 
> Flex matches patterns only at the beginning of the input.
> Only xu matches at the beginning.
> The v and the a are added by the default rule (when xu is removed),
> which matches any character and copies it to the output.

Thanks for the help Vincent. 

Is the flex documentation a little misleading, or I have missed something? I 
mean I haven't read anywhere this simple rule, and according to the docs, I 
would say that what I had understood is reasonable, isn't it?

    Ruben