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-rw-r--r--util/iterators.lua13
1 files changed, 13 insertions, 0 deletions
diff --git a/util/iterators.lua b/util/iterators.lua
index 5d16d8c1..302cca36 100644
--- a/util/iterators.lua
+++ b/util/iterators.lua
@@ -177,6 +177,19 @@ function it.to_array(f, s, var)
return t;
end
+function it.sorted_pairs(t, sort_func)
+ local keys = it.to_array(it.keys(t));
+ table.sort(keys, sort_func);
+ local i = 0;
+ return function ()
+ i = i + 1;
+ local key = keys[i];
+ if key ~= nil then
+ return key, t[key];
+ end
+ end;
+end
+
-- Treat the return of an iterator as key,value pairs,
-- and build a table
function it.to_table(f, s, var)