Merge pull request #9867 from Ghommie/Ghommie-cit375

Ports "examine-code refactor"

code/modules/atmospherics/machinery/airalarm.dm

@@ -222,11 +222,11 @@
 	. = ..()
 	switch(buildstage)
 		if(0)
-			to_chat(user, "<span class='notice'>It is missing air alarm electronics.</span>")
+			. += "<span class='notice'>It is missing air alarm electronics.</span>"
 		if(1)
-			to_chat(user, "<span class='notice'>It is missing wiring.</span>")
+			. += "<span class='notice'>It is missing wiring.</span>"
 		if(2)
-			to_chat(user, "<span class='notice'>Alt-click to [locked ? "unlock" : "lock"] the interface.</span>")
+			. += "<span class='notice'>Alt-click to [locked ? "unlock" : "lock"] the interface.</span>"
 
 /obj/machinery/airalarm/ui_status(mob/user)
 	if(user.has_unlimited_silicon_privilege && aidisabled)

code/modules/atmospherics/machinery/atmosmachinery.dm

@@ -41,11 +41,11 @@ Pipelines + Other Objects -> Pipe network
 	var/on = FALSE
 
 /obj/machinery/atmospherics/examine(mob/user)
-	..()
+	. = ..()
 	if(is_type_in_list(src, GLOB.ventcrawl_machinery) && isliving(user))
 		var/mob/living/L = user
 		if(L.ventcrawler)
-			to_chat(L, "<span class='notice'>Alt-click to crawl through it.</span>")
+			. += "<span class='notice'>Alt-click to crawl through it.</span>"
 
 /obj/machinery/atmospherics/New(loc, process = TRUE, setdir)
 	if(!isnull(setdir))

code/modules/atmospherics/machinery/components/binary_devices/pump.dm

@@ -30,8 +30,8 @@ Thus, the two variables affect pump operation are set in New():
 
 /obj/machinery/atmospherics/components/binary/pump/examine(mob/user)
 	. = ..()
-	to_chat(user,"<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>")
-	to_chat(user,"<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>")
+	. += "<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>"
+	. += "<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>"
 
 /obj/machinery/atmospherics/components/binary/pump/CtrlClick(mob/user)
 	var/area/A = get_area(src)

code/modules/atmospherics/machinery/components/binary_devices/volume_pump.dm

@@ -30,8 +30,8 @@ Thus, the two variables affect pump operation are set in New():
 
 /obj/machinery/atmospherics/components/binary/volume_pump/examine(mob/user)
 	. = ..()
-	to_chat(user,"<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>")
-	to_chat(user,"<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>")
+	. += "<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>"
+	. += "<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>"
 
 /obj/machinery/atmospherics/components/binary/volume_pump/CtrlClick(mob/user)
 	var/area/A = get_area(src)

code/modules/atmospherics/machinery/components/trinary_devices/filter.dm

@@ -14,8 +14,8 @@
 
 /obj/machinery/atmospherics/components/trinary/filter/examine(mob/user)
 	. = ..()
-	to_chat(user,"<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>")
-	to_chat(user,"<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>")
+	. += "<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>"
+	. += "<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>"
 
 /obj/machinery/atmospherics/components/trinary/filter/CtrlClick(mob/user)
 	var/area/A = get_area(src)

code/modules/atmospherics/machinery/components/trinary_devices/mixer.dm

@@ -16,8 +16,8 @@
 	//node 3 is the outlet, nodes 1 & 2 are intakes
 /obj/machinery/atmospherics/components/trinary/mixer/examine(mob/user)
 	. = ..()
-	to_chat(user,"<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>")
-	to_chat(user,"<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>")
+	. += "<span class='notice'>You can hold <b>Ctrl</b> and click on it to toggle it on and off.</span>"
+	. += "<span class='notice'>You can hold <b>Alt</b> and click on it to maximize its pressure.</span>"
 
 /obj/machinery/atmospherics/components/trinary/mixer/CtrlClick(mob/user)
 	var/area/A = get_area(src)

code/modules/atmospherics/machinery/components/unary_devices/cryo.dm

@@ -262,14 +262,14 @@
 		open_machine()
 
 /obj/machinery/atmospherics/components/unary/cryo_cell/examine(mob/user)
-	..()
+	. = ..()
 	if(occupant)
 		if(on)
-			to_chat(user, "Someone's inside [src]!")
+			. += "Someone's inside [src]!"
 		else
-			to_chat(user, "You can barely make out a form floating in [src].")
+			. += "You can barely make out a form floating in [src]."
 	else
-		to_chat(user, "[src] seems empty.")
+		. += "[src] seems empty."
 
 /obj/machinery/atmospherics/components/unary/cryo_cell/MouseDrop_T(mob/target, mob/user)
 	if(user.stat || user.lying || !Adjacent(user) || !user.Adjacent(target) || !iscarbon(target) || !user.IsAdvancedToolUser())

code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm

@@ -424,9 +424,9 @@
 		return FALSE
 
 /obj/machinery/atmospherics/components/unary/vent_pump/examine(mob/user)
-	..()
+	. = ..()
 	if(welded)
-		to_chat(user, "It seems welded shut.")
+		. += "It seems welded shut."
 
 /obj/machinery/atmospherics/components/unary/vent_pump/power_change()
 	..()

code/modules/atmospherics/machinery/components/unary_devices/vent_scrubber.dm

@@ -118,7 +118,7 @@
 /obj/machinery/atmospherics/components/unary/vent_scrubber/proc/broadcast_status()
 	if(!radio_connection)
 		return FALSE
-	
+
 	var/list/f_types = list()
 	for(var/path in GLOB.meta_gas_ids)
 		f_types += list(list("gas_id" = GLOB.meta_gas_ids[path], "gas_name" = GLOB.meta_gas_names[path], "enabled" = (path in filter_types)))
@@ -205,7 +205,7 @@
 			air_contents.merge(filtered_out)
 			tile.assume_air(removed)
 			tile.air_update_turf()
-	
+
 	else //Just siphoning all air
 
 		var/transfer_moles = environment.total_moles()*(volume_rate/environment.volume)
@@ -303,11 +303,11 @@
 	if(. && on && is_operational())
 		to_chat(user, "<span class='warning'>You cannot unwrench [src], turn it off first!</span>")
 		return FALSE
-		
+
 /obj/machinery/atmospherics/components/unary/vent_scrubber/examine(mob/user)
-	..()
+	. = ..()
 	if(welded)
-		to_chat(user, "It seems welded shut.")
+		. += "It seems welded shut."
 
 /obj/machinery/atmospherics/components/unary/vent_scrubber/can_crawl_through()
 	return !welded

code/modules/atmospherics/machinery/other/meter.dm

@@ -111,8 +111,8 @@
 		. = "The connect error light is blinking."
 
 /obj/machinery/meter/examine(mob/user)
-	..()
-	to_chat(user, status())
+	. = ..()
+	. += status()
 
 /obj/machinery/meter/wrench_act(mob/user, obj/item/I)
 	to_chat(user, "<span class='notice'>You begin to unfasten \the [src]...</span>")

code/modules/atmospherics/machinery/other/miner.dm

@@ -33,9 +33,9 @@
 	set_active(active)				//Force overlay update.
 
 /obj/machinery/atmospherics/miner/examine(mob/user)
-	..()
+	. = ..()
 	if(broken)
-		to_chat(user, "Its debug output is printing \"[broken_message]\".")
+		. += "Its debug output is printing \"[broken_message]\"."
 
 /obj/machinery/atmospherics/miner/proc/check_operation()
 	if(!active)

code/modules/atmospherics/machinery/portable/portable_atmospherics.dm

@@ -88,10 +88,10 @@
 		replace_tank(user, TRUE)
 
 /obj/machinery/portable_atmospherics/examine(mob/user)
-	..()
+	. = ..()
 	if(holding)
-		to_chat(user, "<span class='notice'>\The [src] contains [holding]. Alt-click [src] to remove it.</span>")
-		to_chat(user, "<span class='notice'>Click [src] with another gas tank to hot swap [holding].</span>")
+		. += "<span class='notice'>\The [src] contains [holding]. Alt-click [src] to remove it.</span>"
+		. += "<span class='notice'>Click [src] with another gas tank to hot swap [holding].</span>"
 
 /obj/machinery/portable_atmospherics/proc/replace_tank(mob/living/user, close_valve, obj/item/tank/new_tank)
 	if(holding)