refactored some parameter setting

profiles/car.lua

@@ -90,7 +90,25 @@ end
 
 
 function way_function (way)
-  -- First, get the properties of each way that we come across
+  -- we dont route over areas
+  local area = way.tags:Find("area")
+  if ignore_areas and ("yes" == area) then
+    return 0
+  end
+
+  -- check if oneway tag is unsupported
+  local oneway = way.tags:Find("oneway")
+  if "reversible" == oneway then
+    return 0
+  end
+
+  -- Check if we are allowed to access the way
+  local access = Access.find_access_tag(way, access_tags_hierachy)
+  if access_tag_blacklist[access] then
+    return 0
+  end
+
+  -- Second, parse the way according to these properties
   local highway = way.tags:Find("highway")
   local name = way.tags:Find("name")
   local ref = way.tags:Find("ref")
@@ -100,23 +118,10 @@ function way_function (way)
   local maxspeed_forward = parse_maxspeed(way.tags:Find( "maxspeed:forward"))
   local maxspeed_backward = parse_maxspeed(way.tags:Find( "maxspeed:backward"))
   local barrier = way.tags:Find("barrier")
-    local oneway = way.tags:Find("oneway")
   local cycleway = way.tags:Find("cycleway")
   local duration  = way.tags:Find("duration")
   local service  = way.tags:Find("service")
-    local area = way.tags:Find("area")
-    local access = Access.find_access_tag(way, access_tags_hierachy)
 
-  -- Second, parse the way according to these properties
-
-	if ignore_areas and ("yes" == area) then
-		return 0
-	end
-		
-  	-- Check if we are allowed to access the way
-    if access_tag_blacklist[access] then
-		return 0
-    end
 
   -- Set the name that will be used for instructions
 	if "" ~= ref then
@@ -176,18 +181,13 @@ function way_function (way)
   end
 
   -- Set direction according to tags on way
-    if obey_oneway then
-      if oneway == "no" or oneway == "0" or oneway == "false" then
   way.direction = Way.bidirectional
-	  elseif oneway == "-1" then
+  if obey_oneway then
+	  if oneway == "-1" then
 	    way.direction = Way.opposite
     elseif oneway == "yes" or oneway == "1" or oneway == "true" or junction == "roundabout" or highway == "motorway_link" or highway == "motorway" then
 	    way.direction = Way.oneway
-      else
-        way.direction = Way.bidirectional
     end
-    else
-      way.direction = Way.bidirectional
   end
 
   -- Override speed settings if explicit forward/backward maxspeeds are given
@@ -202,10 +202,10 @@ function way_function (way)
   end
 
   -- Override general direction settings of there is a specific one for our mode of travel
-  
   if ignore_in_grid[highway] ~= nil and ignore_in_grid[highway] then
 		way.ignore_in_grid = true
 	end
+
 	way.type = 1
   return 1
 end

profiles/lib/access.lua

@@ -4,8 +4,7 @@ module "Access"
 
 function find_access_tag(source,access_tags_hierachy)
     for i,v in ipairs(access_tags_hierachy) do
-        local tag = source.tags:Find(v)
-        if tag ~= '' then
+        if source.tags:Find(v) ~= '' then
             return tag
         end
     end