move parseFlexShorthand

modules/Element.lua

@@ -190,75 +190,6 @@ function Element.init(deps)
   Element._Performance = deps.Performance
 end
 
---- Parse CSS flex shorthand into flexGrow, flexShrink, flexBasis
---- Supports: number, "auto", "none", "grow shrink basis"
----@param flexValue number|string The flex shorthand value
----@return number flexGrow
----@return number flexShrink
----@return string|number flexBasis
-local function parseFlexShorthand(flexValue)
-  -- Single number: flex-grow
-  if type(flexValue) == "number" then
-    return flexValue, 1, 0
-  end
-
-  -- String values
-  if type(flexValue) == "string" then
-    -- "auto" = 1 1 auto
-    if flexValue == "auto" then
-      return 1, 1, "auto"
-    end
-
-    -- "none" = 0 0 auto
-    if flexValue == "none" then
-      return 0, 0, "auto"
-    end
-
-    -- Parse "grow shrink basis" format
-    local parts = {}
-    for part in flexValue:gmatch("%S+") do
-      table.insert(parts, part)
-    end
-
-    local grow = 0
-    local shrink = 1
-    local basis = "auto"
-
-    if #parts == 1 then
-      -- Single value: could be grow (number) or basis (with unit)
-      local num = tonumber(parts[1])
-      if num then
-        grow = num
-        basis = 0
-      else
-        basis = parts[1]
-      end
-    elseif #parts == 2 then
-      -- Two values: grow shrink (both numbers) or grow basis
-      local num1 = tonumber(parts[1])
-      local num2 = tonumber(parts[2])
-      if num1 and num2 then
-        grow = num1
-        shrink = num2
-        basis = 0
-      elseif num1 then
-        grow = num1
-        basis = parts[2]
-      end
-    elseif #parts >= 3 then
-      -- Three values: grow shrink basis
-      grow = tonumber(parts[1]) or 0
-      shrink = tonumber(parts[2]) or 1
-      basis = parts[3]
-    end
-
-    return grow, shrink, basis
-  end
-
-  -- Default fallback
-  return 0, 1, "auto"
-end
-
 ---@param props ElementProps
 ---@return Element
 function Element.new(props)
@@ -1097,7 +1028,7 @@ function Element.new(props)
 
   -- Handle flex shorthand property (sets flexGrow, flexShrink, flexBasis)
   if props.flex ~= nil then
-    local grow, shrink, basis = parseFlexShorthand(props.flex)
+    local grow, shrink, basis = Element._Units.parseFlexShorthand(props.flex)
 
     -- Only set individual properties if they weren't explicitly provided
     if props.flexGrow == nil then

modules/Units.lua

@@ -265,4 +265,73 @@ function Units.isValid(unitStr)
   return validUnits[unit] == true
 end
 
+--- Parse CSS flex shorthand into flexGrow, flexShrink, flexBasis
+--- Supports: number, "auto", "none", "grow shrink basis"
+---@param flexValue number|string The flex shorthand value
+---@return number flexGrow
+---@return number flexShrink
+---@return string|number flexBasis
+function Units.parseFlexShorthand(flexValue)
+  -- Single number: flex-grow
+  if type(flexValue) == "number" then
+    return flexValue, 1, 0
+  end
+
+  -- String values
+  if type(flexValue) == "string" then
+    -- "auto" = 1 1 auto
+    if flexValue == "auto" then
+      return 1, 1, "auto"
+    end
+
+    -- "none" = 0 0 auto
+    if flexValue == "none" then
+      return 0, 0, "auto"
+    end
+
+    -- Parse "grow shrink basis" format
+    local parts = {}
+    for part in flexValue:gmatch("%S+") do
+      table.insert(parts, part)
+    end
+
+    local grow = 0
+    local shrink = 1
+    local basis = "auto"
+
+    if #parts == 1 then
+      -- Single value: could be grow (number) or basis (with unit)
+      local num = tonumber(parts[1])
+      if num then
+        grow = num
+        basis = 0
+      else
+        basis = parts[1]
+      end
+    elseif #parts == 2 then
+      -- Two values: grow shrink (both numbers) or grow basis
+      local num1 = tonumber(parts[1])
+      local num2 = tonumber(parts[2])
+      if num1 and num2 then
+        grow = num1
+        shrink = num2
+        basis = 0
+      elseif num1 then
+        grow = num1
+        basis = parts[2]
+      end
+    elseif #parts >= 3 then
+      -- Three values: grow shrink basis
+      grow = tonumber(parts[1]) or 0
+      shrink = tonumber(parts[2]) or 1
+      basis = parts[3]
+    end
+
+    return grow, shrink, basis
+  end
+
+  -- Default fallback
+  return 0, 1, "auto"
+end
+
 return Units