X-Git-Url: https://git.madduck.net/etc/awesome.git/blobdiff_plain/7e6f1336f26e8c36a1768ae1f7f076a30030a8a8..fd35485c200a52c9429f9a4f3f5c8282b64dba30:/helpers.lua

diff --git a/helpers.lua b/helpers.lua
index b681cb0..6a47738 100644
--- a/helpers.lua
+++ b/helpers.lua
@@ -16,6 +16,8 @@ local io     = { open  = io.open,
 local rawget = rawget
 local table  = { sort   = table.sort }
 
+local wibox  = require("wibox")
+
 -- Lain helper functions for internal use
 -- lain.helpers
 local helpers = {}
@@ -106,7 +108,7 @@ end
 
 -- {{{ Pipe operations
 
--- read the full output of a pipe (command)
+-- read the full output of a command output
 function helpers.read_pipe(cmd)
    local f = assert(io.popen(cmd))
    local output = f:read("*all")
@@ -114,6 +116,16 @@ function helpers.read_pipe(cmd)
    return output
 end
 
+-- return line iterator of a command output
+function helpers.pipelines(...)
+    local f = assert(io.popen(...))
+    return function () -- iterator
+        local data = f:read()
+        if data == nil then f:close() end
+        return data
+    end
+end
+
 -- }}}
 
 -- {{{ A map utility
@@ -130,7 +142,9 @@ end
 
 -- }}}
 
---{{{ Iterate over table of records sorted by keys
+-- {{{ Misc
+
+-- iterate over table of records sorted by keys
 function helpers.spairs(t)
     -- collect the keys
     local keys = {}
@@ -147,6 +161,15 @@ function helpers.spairs(t)
         end
     end
 end
---}}}
+
+-- create a lain textbox widget
+function helpers.make_widget_textbox()
+    local w = wibox.widget.textbox('')
+    local t = wibox.widget.base.make_widget(w)
+    t.widget = w
+    return t
+end
+
+-- }}}
 
 return helpers