api: handle escaping within the function

api/api.lua

@@ -960,11 +960,10 @@ end
 -- 'layer'      [string]
 -- 'arg1'       [string]
 -- return object
-
--- NOTE: special symbols must be escaped by the SAME symbol!
--- e.g. symbol '\':  '\\'
--- symbol '-': '--'
 function pfUI.api.GetNoNameObject(frame, objtype, layer, arg1, arg2)
+  local arg1 = arg1 and gsub(arg1, "([%+%-%*%(%)%?%[%]%^])", "%%%1")
+  local arg2 = arg2 and gsub(arg2, "([%+%-%*%(%)%?%[%]%^])", "%%%1")
+
   local objects
   if objtype == "Texture" or objtype == "FontString" then
     objects = {frame:GetRegions()}
@@ -980,25 +979,25 @@ function pfUI.api.GetNoNameObject(frame, objtype, layer, arg1, arg2)
       if objtype == "Texture" and object.SetTexture and object:GetTexture() ~= "Interface\\BUTTONS\\WHITE8X8" then
         if arg1 then
           local texture = object:GetTexture()
-          if texture and not string.find(texture, arg1) then check = false end
+          if texture and not string.find(texture, arg1, 1) then check = false end
         end
 
         if check then return object end
       elseif objtype == "FontString" and object.SetText then
         if arg1 then
           local text = object:GetText()
-          if text and not string.find(text, arg1) then check = false end
+          if text and not string.find(text, arg1, 1) then check = false end
         end
 
         if check then return object end
       elseif objtype == "Button" and object.GetNormalTexture and object:GetNormalTexture() then
         if arg1 then
           local texture = object:GetNormalTexture():GetTexture()
-          if texture and not string.find(texture, arg1) then check = false end
+          if texture and not string.find(texture, arg1, 1) then check = false end
         end
         if arg2 then
           local text = object:GetText()
-          if text and not string.find(text, arg2) then check = false end
+          if text and not string.find(text, arg2, 1) then check = false end
         end
 
         if check then return object end

skins/blizzard/mail.lua

@@ -129,8 +129,8 @@ pfUI:RegisterSkin("Mailbox", function ()
         button.icon:SetTexture(tex)
       end
     end
-    SkinButton(GetNoNameObject(InboxFrame, "Button", nil, "UI--Panel--Button--Up", OPENMAIL))
+    SkinButton(GetNoNameObject(InboxFrame, "Button", nil, "UI-Panel-Button-Up", OPENMAIL))
-    local button = GetNoNameObject(SendMailFrame, "Button", nil, "UI--Panel--Button--Up", SEND_LABEL) -- this is SendMailMailButton
+    local button = GetNoNameObject(SendMailFrame, "Button", nil, "UI-Panel-Button-Up", SEND_LABEL) -- this is SendMailMailButton
     SkinButton(button) -- hack! only it happened to do it
     button:ClearAllPoints()
     button:SetPoint("RIGHT", SendMailCancelButton, "LEFT", -2*bpad, 0)

skins/blizzard/options-interface.lua

@@ -18,7 +18,7 @@ pfUI:RegisterSkin("Options - Interface", function ()
   UIOptionsFrame.backdrop:SetPoint("BOTTOMRIGHT", 0, 50)
   UIOptionsFrame:SetHitRectInsets(0,0,0,50)
 
-  local close = GetNoNameObject(UIOptionsFrame, "Button", nil, "UI--Panel--MinimizeButton--Up")
+  local close = GetNoNameObject(UIOptionsFrame, "Button", nil, "UI-Panel-MinimizeButton-Up")
 
   -- increase button layer
   UIOptionsFrameTab1:SetFrameLevel(8)