diff options
| -rw-r--r-- | util/iterators.lua | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/util/iterators.lua b/util/iterators.lua index 318c1a96..cc504827 100644 --- a/util/iterators.lua +++ b/util/iterators.lua @@ -90,6 +90,15 @@ function head(n, f, s, var) end, s; end +-- Skip the first n items an iterator returns +function skip(n, f, s, var) + for i=1,n do + var = f(s, var); + end + return f, s, var; +end + +-- Return the last n items an iterator returns function tail(n, f, s, var) local results, count = {}, 0; while true do |