string扩展模块新增一个简单的浮点转大数字格式函数

Zframework/stringExtend.lua

@@ -1,5 +1,6 @@
 local data=love.data
 local STRING={}
+local tostring=tostring
 local int,format=math.floor,string.format
 local find,sub,upper=string.find,string.sub,string.upper
 local char,byte=string.char,string.byte
@@ -68,6 +69,24 @@ function STRING.time(t)
     end
 end
 
+do--function STRING.bigInt(t)
+    local lg=math.log10
+    local units={"","K","M","B","T","Qa","Qt","Sx","Sp","Oc","No"}
+    local preUnits={"","U","D","T","Qa","Qt","Sx","Sp","O","N"}
+    local secUnits={"Dc","Vg","Tg","Qd","Qi","Se","St","Og","Nn","Ce"}--Ce is next-level unit, but DcCe is not used so used here
+    for _,preU in next,preUnits do for _,secU in next,secUnits do table.insert(units,preU..secU)end end
+    function STRING.bigInt(t)
+        if t<1000 then
+            return tostring(t)
+        elseif t~=1e999 then
+            local e=int(lg(t)/3)
+            return(t/10^(e*3))..units[e+1]
+        else
+            return"INF"
+        end
+    end
+end
+
 function STRING.hexColor(str)--[LOW PERFORMENCE]
     assert(type(str)=='string')
     if str:sub(1,1)=="#"then str=str:sub(2)end