How to sum the values of a table?

[alexeypetrushin]

Found an example which in my personal opinion is a good illustration to the 
naming convention.

Package `nre` has the `findIter` proc. No confusion, you can use `find` or the 
`findIter`, immediatelly clear what's going on and how to use it.
    
    
    import nre
    
    for match in "abcde".findIter(re"[bcd]"):
      echo match
    
    
    Run