From d22207386fd9015cba924a03ec7965c9f05fa8c6 Mon Sep 17 00:00:00 2001
From: romildo <malaquias@gmail.com>
Date: Fri, 17 Mar 2017 21:13:27 -0300
Subject: [PATCH] Add map function to gears.table

---
 lib/gears/table.lua | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/lib/gears/table.lua b/lib/gears/table.lua
index 95c528a0b..54ceab4be 100644
--- a/lib/gears/table.lua
+++ b/lib/gears/table.lua
@@ -212,5 +212,20 @@ function gtable.merge(t, set)
     return t
 end
 
+--- Map a function to a table. The function is applied to each value
+-- on the table, returning a table of the results.
+-- @class function
+-- @name map
+-- @tparam function f the function to be applied to each value on the table
+-- @tparam table tbl the container table whose values will be operated on
+-- @treturn table Return a table of the results
+function gtable.map(f, tbl)
+    local t = {}
+    for k,v in pairs(tbl) do
+        t[k] = f(v)
+    end
+    return t
+end
+
 
 return gtable