Synopsis:
   $strlen(<string>)

Technical:
   This function is used to determine the length, in characters, of a given
   string.

Practical:
   This function is effectively the same as the $@var notation, except that
   $@var only works for variables, not functions or automatic expandos.

Returns:
   >0   number of characters in string
    0   no string given

Examples:
   $strlen($1-3)                  returns length of args $1 to $3
   $strlen(epic is cool)          returns "12"

See Also:
   Special_Vars(7); numwords(6)