Make all variables in Lua scripts local.

share/library/Misc/ground.lua

@@ -1,18 +1,18 @@
 -- Symbol name
-names =
+local names =
 {
 	en = "Ground",
 	cs = "Zem"
 }
 
 -- Render area in base units (X1, Y1, X2, Y2)
-area = {-1, -1, 1, 2}
+local area = {-1, -1, 1, 2}
 
 -- Terminals
-terminals = {{0, -1}}
+local terminals = {{0, -1}}
 
 -- Rendering
-render = function (cr)
+local render = function (cr)
 	-- The vertical line
 	cr.move_to (0, -1)
 	cr.line_to (0, 0.5)

share/library/Misc/lamp.lua

@@ -1,18 +1,18 @@
 -- Symbol name
-names =
+local names =
 {
 	en = "Lamp",
 	cs = "Světelný zdroj"
 }
 
 -- Render area in base units (X1, Y1, X2, Y2)
-area = {-2, -1, 2, 1}
+local area = {-2, -1, 2, 1}
 
 -- Terminals
-terminals = {{-2, 0}, {2, 0}}
+local terminals = {{-2, 0}, {2, 0}}
 
 -- Rendering
-render = function (cr)
+local render = function (cr)
 	-- The circle
 	cr.save ()
 

share/library/Misc/power-source.lua

@@ -1,18 +1,18 @@
 -- Symbol name
-names =
+local names =
 {
 	en = "Power source",
 	cs = "Zdroj napětí"
 }
 
 -- Render area in base units (X1, Y1, X2, Y2)
-area = {-1, -2, 1, 2}
+local area = {-1, -2, 1, 2}
 
 -- Terminals
-terminals = {{-1, 0}, {1, 0}}
+local terminals = {{-1, 0}, {1, 0}}
 
 -- Rendering
-render = function (cr)
+local render = function (cr)
 	-- The vertical lines
 	cr.move_to (-0.2, -1)
 	cr.line_to (-0.2, 1)

share/library/Misc/switch.lua

@@ -1,18 +1,18 @@
 -- Symbol name
-names =
+local names =
 {
 	en = "Switch",
 	cs = "Spínač"
 }
 
 -- Render area in base units (X1, Y1, X2, Y2)
-area = {-2, -1.5, 2, 0}
+local area = {-2, -1.5, 2, 0}
 
 -- Terminals
-terminals = {{-2, 0}, {2, 0}}
+local terminals = {{-2, 0}, {2, 0}}
 
 -- Rendering
-render_normal = function (cr)
+local render_normal = function (cr)
 	-- The switch contact
 	cr.move_to (1.3, -1.3)
 	cr.line_to (-1, 0)