Stripping text from tooltip scraping

[Pixies]

so I have this function:

local CostTip = CreateFrame('GameTooltip')
local CostText = CostTip:CreateFontString()
CostTip:AddFontStrings(CostTip:CreateFontString(), CostTip:CreateFontString())
CostTip:AddFontStrings(CostText, CostTip:CreateFontString())
-- the next function is what will be called to find the cost of a spell
function GetPowerCost(spellId)
  -- returns the value of the second line of the tooltip
  -- bail if we don't have a spellId
  if spellId == nil then
    return nil
  else
    CostTip:SetOwner(WorldFrame, 'ANCHOR_NONE')
    CostTip:SetSpellByID(spellId)
    print(spellId .. ' = ' .. CostText:GetText())
    return CostText:GetText()
  end
end

but I'm unsure how to go about stripping the spell ID + power name from the return, for example I just want to be able to
/dump GetPowerCost(53209)
and get a return of:
35

right now I get:
"35 Focus"

thank you for any help

[Deleted]

return string.match(CostText:GetText(), "%d+")

would work with your example. But I didn't check how CostText is built (e.g. when multiple resources like DK runes are involved) so you may need to validate the string first.

A hunter-only solution might look like

local cost = CostText:GetText()
return string.find(cost, "^%d+ Focus$") and string.match(cost, "%d+")

[semlar]

I'm the person who wrote that function, or at least the original version of it.

If you go to that link, I had provided a method for converting the cost to a number.