make table line function a formspec helper

system/formspec_helpers.lua

@@ -3,6 +3,33 @@ local S = m.translator
 local esc = minetest.formspec_escape
 
 
+-- Get a table line
+--
+-- The index determines the position from top within the current container and
+-- is calculated to display the string in the correct position.
+--
+-- If `name` is a literal `'-'` then a line is printed at the position.
+--
+-- @param index    The numerical index for the line
+-- @param name     Human-readable name for the variable
+-- @param variable The variable like it’s used in the definition
+-- @param value    The value to show for that variable
+-- @return string  The created formspec string
+mtimer.get_table_line = function (index, name, variable, value)
+    local position = ((index-1) * 0.4)
+
+    if name == '-' then
+        return 'box[0,'..position..';+contentWidth,0.02;#ffffff]'
+    end
+
+    return table.concat({
+        'label[0,'..position..';'..name..']',
+        'label[4,'..position..';'..variable..']',
+        'label[7,'..position..';'..value..']'
+    }, ' ')
+end
+
+
 -- Get a button with icon
 --
 -- This function returns a fully formatted button with icon.

system/formspecs/real_time_universal.lua

@@ -1,33 +1,7 @@
 local m = mtimer
 local S = m.translator
 local esc = minetest.formspec_escape
-
+local line = mtimer.get_table_line
-
--- Return a table line
---
--- The index determines the position from top within the current container and
--- is calculated to display the string in the correct position.
---
--- If `name` is a literal `'-'` then a line is printed at the position.
---
--- @param index    The numerical index for the line
--- @param name     Human-readable name for the variable
--- @param variable The variable like it’s used in the definition
--- @param value    The value to show for that variable
--- @return string  The created formspec string
-local line = function (index, name, variable, value)
-    local position = ((index-1) * 0.4)
-
-    if name == '-' then
-        return 'box[0,'..position..';+contentWidth,0.02;#ffffff]'
-    end
-
-    return table.concat({
-        'label[0,'..position..';'..name..']',
-        'label[4,'..position..';'..variable..']',
-        'label[7,'..position..';'..value..']'
-    }, ' ')
-end
 
 
 -- Real Time Universal Formspec