Add utils from who-er

Heimdall.lua

@@ -8,7 +8,10 @@ if not Heimdall_Data then Heimdall_Data = {} end
 ---@field raceMap table<string, string>
 ---@field stinkies table<string, boolean>
 ---@field messenger HeimdallMessengerData
+---@field who HeimdallWhoData
 ---@field dumpTable fun(table: any, depth?: number): nil
+---@field utf8len fun(input: string): number
+---@field padString fun(input: string, targetLength: number, left?: boolean): string
 
 --- Config ---
 ---@class HeimdallConfig
@@ -37,6 +40,9 @@ if not Heimdall_Data then Heimdall_Data = {} end
 ---@field queue table<string, Message>
 ---@field ticker number?
 
+---@class HeimdallWhoData
+---@field ticker number?
+
 data.messenger = {
     queue = {}
 }
@@ -85,3 +91,46 @@ data.raceMap = {
 }
 
 data.stinkies = {}
+
+---@param input string
+---@return number
+data.utf8len = function(input)
+    if not input then
+        return 0
+    end
+    local len = 0
+    local i = 1
+    local n = #input
+    while i <= n do
+        local c = input:byte(i)
+        if c >= 0 and c <= 127 then
+            i = i + 1
+        elseif c >= 194 and c <= 223 then
+            i = i + 2
+        elseif c >= 224 and c <= 239 then
+            i = i + 3
+        elseif c >= 240 and c <= 244 then
+            i = i + 4
+        else
+            i = i + 1
+        end
+        len = len + 1
+    end
+    return len
+end
+---@param input string
+---@param targetLength number
+---@param left boolean
+---@return string
+data.padString = function(input, targetLength, left)
+    left = left or false
+    local len = data.utf8len(input)
+    if len < targetLength then
+        if left then
+            input = input .. string.rep(" ", targetLength - len)
+        else
+            input = string.rep(" ", targetLength - len) .. input
+        end
+    end
+    return input
+end