Command: match
  
Syntax: 
  i = match(s1, s2)
  
Description: 
  Try to match s1 against some slice of s2. If successful, return 
  the element number of s2 where the (first) matching slice begins, 
  else return 0. 
  
Example: 
     location = match("pho", "Euphoria")
      -- location is set to 3

See Also: 
  find, compare, wildcard_match
  
