format text message "too much lines"

removes now whitespaces before and after a linebreak.

depends.txt

@@ -1,2 +1,3 @@
 default
+signs_lib?
 locks?

init.lua

@@ -1,4 +1,5 @@
---more_signs by addi
+--arrow_signs by addi
+--thanks to Jat15 for the new place and rotate-system.
 --Code and Textures are under the CC by-sa 3.0 licence 	
 --see: http://creativecommons.org/licenses/by-sa/3.0/	
 	
@@ -8,7 +9,7 @@ arrow_signs={}
 
 arrow_signs.formspec = "field[text;Sign text:;${text}]";
 
-arrow_signs_on_place = function(itemstack, placer, pointed_thing)
+arrow_signs.on_place = function(itemstack, placer, pointed_thing)
 	
 	local posabove = pointed_thing.above
 	local posunder = pointed_thing.under
@@ -103,33 +104,35 @@ arrow_signs_on_place = function(itemstack, placer, pointed_thing)
 	
 end
 
- function arrow_signs:savetext(pos, formname, fields, sender)
-		
+arrow_signs.savetext = function(pos, formname, fields, sender)
+	if fields.text then
 		if not minetest.get_player_privs(sender:get_player_name())["interact"] then
 			minetest.chat_send_player(sender:get_player_name(), "error: you don't have permission to edit the sign. you need the interact priv")
 		return
 		end
+		if minetest.is_protected(pos, sender:get_player_name()) then
+			minetest.record_protection_violation(pos, sender:get_player_name())
+			return
+		end
 		local meta = minetest.get_meta(pos)
 		fields.text = fields.text or ""
-		print((sender:get_player_name() or "").." wrote \""..fields.text..
-				"\" to sign at "..minetest.pos_to_string(pos))
+		minetest.log("action", (sender:get_player_name() or "").." wrote \""..fields.text..
+				"\" to sign at "..minetest.pos_to_string(pos));
 		meta:set_string("text", fields.text)
-		text = arrow_signs:create_lines(fields.text)
+		local text,lines = arrow_signs.create_lines(fields.text)
 		meta:set_string("infotext", '"'..text..'"')
-		i=0
-		for wort in text:gfind("\n") do
-		i=i+1
-        end
-		if i > 4 then
-		minetest.chat_send_player(sender:get_player_name(),"\tInformation: \nYou've written more than 5 lines. \n it may be that not all lines are displayed. \n Please remove the last entry")
+		if lines > 4 then
+			minetest.chat_send_player(sender:get_player_name(),"Information: \nYou've written more than 5 lines. \nIt may be that not all lines are displayed. \nPlease remove the last entry")
 		end
 	return true
 	end
+end
 
-function arrow_signs:create_lines(text)
-	text = text:gsub("/", "\"\n\"")
-	text = text:gsub("|", "\"\n\"")
-	return text
+--this function creates the linebreaks
+arrow_signs.create_lines = function(text)
+	local text, n = text:gsub("[ ]*(%|)[ ]*", '"\n"')--search for |
+	local text, m = text:gsub("[ ]*(%/)[ ]*", '"\n"')--search for /
+	return text, n+m
 end
 
 minetest.override_item("default:sign_wall", {
@@ -163,16 +166,14 @@ minetest.register_node("arrow_signs:wall", {
 	walkable = false,
 	groups = {choppy=2,dig_immediate=2,sign=1},
 	sounds = default.node_sound_defaults(),
-	on_place = arrow_signs_on_place,	
+	on_place = arrow_signs.on_place,	
 	on_construct = function(pos)
 		--local n = minetest.get_node(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("formspec", arrow_signs.formspec)
-		meta:set_string("infotext", "\"\"")
-	end,
-	on_receive_fields = function(pos, formname, fields, sender)
-		arrow_signs:savetext(pos, formname, fields, sender)
+		meta:set_string("infotext", [[""]])
 	end,
+	on_receive_fields = arrow_signs.savetext,
 })
 
 --Recipes

shared_locked.lua

@@ -26,14 +26,16 @@ minetest.register_node("arrow_signs:shared_locked", {
 	groups = {choppy=2,dig_immediate=2,sign_locked=1},
 	legacy_wallmounted = true,
 	
-	on_place = arrow_signs_on_place,
-	
+	on_place = function(itemstack, placer, pointed_thing)
+			arrow_signs.on_place(itemstack, placer, pointed_thing);
+			locks:lock_set_owner( pointed_thing.above, placer, "Shared locked sign" );
+	end,
 	on_construct = function(pos)
 			local meta =  minetest.get_meta(pos)
 			-- prepare the lock of the sign
 			locks:lock_init( pos,
 							"size[8,4]"..
-							"field[0.3,0.6;6,0.7;text;Text:;]"..
+							"field[0.3,0.6;6,0.7;text;Text:;${text}]"..
 							"field[0.3,3.6;6,0.7;locks_sent_lock_command;Locked sign. Type /help for help:;]"..
 							"button_exit[6.3,3.2;1.7,0.7;locks_sent_input;Proceed]" );
 	end,
@@ -54,18 +56,21 @@ minetest.register_node("arrow_signs:shared_locked", {
 				and ( not(fields.locks_sent_lock_command)
 					   or fields.locks_sent_lock_command=="")
 				and locks:lock_allow_use( pos, sender )) then
-
+				--then save the text to the sign meta
 				--print("Sign at "..minetest.pos_to_string(pos).." got "..dump(fields))
 				local meta =  minetest.get_meta(pos)
 				fields.text = fields.text or "";
-				print((sender:get_player_name() or "").." wrote \""..fields.text..
+				minetest.log("action", (sender:get_player_name() or "").." wrote \""..fields.text..
 							"\" to sign at "..minetest.pos_to_string(pos));
-				meta:set_string("text", fields.text.." ["..sender:get_player_name().."]");
-				meta:set_string("infotext", '"'..fields.text..'"'.." ["..sender:get_player_name().."]");
+				meta:set_string("text", fields.text);
+				local text = arrow_signs.create_lines(fields.text)
+				meta:set_string("infotext", '"'..text..'"'.." ["..sender:get_player_name().."]");
 
 			-- a command for the lock?
 			else
-			   arrow_signs:savetext( pos, formname, fields, sender );
+				--do nothing, because user does not have the right to change the sign
+				--a warning message is also printed by the locks mod
+				--arrow_signs.savetext( pos, formname, fields, sender );
 			end
 
 	end,