Refactor encounter handling and placeholder logic

Addon/Code/SpeechDataApi.lua

@@ -6,23 +6,6 @@ local function BuildIndex(text)
     return normalized
 end
 
-local function FillNumbers(text, sourceText)
-    local numbers = {}
-    local currentIndex = 1
-
-    for num in sourceText:gmatch("%d+%.?%d*") do
-        table.insert(numbers, num)
-    end
-
-    local replacedText = text:gsub("#%?", function()
-        local n = numbers[currentIndex]
-        currentIndex = currentIndex + 1
-        return n or "?"
-    end)
-
-    return replacedText
-end
-
 local function FillPlaceholders(text)
     if text == nil then
         return text
@@ -41,7 +24,9 @@ local function GetSpeech(message)
     local speech = addon.data.speech[index];
     local text = speech and speech.m or nil
     if text then
-        return FillPlaceholders(FillNumbers(text, message))
+        return FillPlaceholders(
+                addon.API.FillNumbers(text, message)
+        )
     else
         return nil
     end