init

sdk/tolua++/lua/compat.lua

@@ -0,0 +1,193 @@
+-------------------------------------------------------------------
+-- Real globals
+-- _ALERT
+-- _ERRORMESSAGE
+-- _VERSION
+-- _G
+-- assert
+-- error
+-- metatable
+-- next
+-- print
+-- require
+-- tonumber
+-- tostring
+-- type
+-- unpack
+
+-------------------------------------------------------------------
+-- collectgarbage
+-- gcinfo
+
+-- globals
+
+-- call   -> protect(f, err)
+-- loadfile
+-- loadstring
+
+-- rawget
+-- rawset
+
+-- getargs = Main.getargs ??
+
+rawtype = type
+
+function do_ (f, err)
+  if not f then print(err); return end
+  local a,b = pcall(f)
+  if not a then print(b); return nil
+  else return b or true
+  end
+end
+
+function dostring(s) return do_(loadstring(s)) end
+-- function dofile(s) return do_(loadfile(s)) end
+
+-------------------------------------------------------------------
+-- Table library
+local tab = table
+foreach = tab.foreach
+foreachi = tab.foreachi
+getn = tab.getn
+tinsert = tab.insert
+tremove = tab.remove
+sort = tab.sort
+
+-------------------------------------------------------------------
+-- Debug library
+local dbg = debug
+getinfo = dbg.getinfo
+getlocal = dbg.getlocal
+setcallhook = function () error"`setcallhook' is deprecated" end
+setlinehook = function () error"`setlinehook' is deprecated" end
+setlocal = dbg.setlocal
+
+-------------------------------------------------------------------
+-- math library
+local math = math
+abs = math.abs
+acos = function (x) return math.deg(math.acos(x)) end
+asin = function (x) return math.deg(math.asin(x)) end
+atan = function (x) return math.deg(math.atan(x)) end
+atan2 = function (x,y) return math.deg(math.atan2(x,y)) end
+ceil = math.ceil
+cos = function (x) return math.cos(math.rad(x)) end
+deg = math.deg
+exp = math.exp
+floor = math.floor
+frexp = math.frexp
+ldexp = math.ldexp
+log = math.log
+log10 = math.log10
+max = math.max
+min = math.min
+mod = math.mod
+PI = math.pi
+--??? pow = math.pow  
+rad = math.rad
+random = math.random
+randomseed = math.randomseed
+sin = function (x) return math.sin(math.rad(x)) end
+sqrt = math.sqrt
+tan = function (x) return math.tan(math.rad(x)) end
+
+-------------------------------------------------------------------
+-- string library
+local str = string
+strbyte = str.byte
+strchar = str.char
+strfind = str.find
+format = str.format
+gsub = str.gsub
+strlen = str.len
+strlower = str.lower
+strrep = str.rep
+strsub = str.sub
+strupper = str.upper
+
+-------------------------------------------------------------------
+-- os library
+clock = os.clock
+date = os.date
+difftime = os.difftime
+execute = os.execute --?
+exit = os.exit
+getenv = os.getenv
+remove = os.remove
+rename = os.rename
+setlocale = os.setlocale
+time = os.time
+tmpname = os.tmpname
+
+-------------------------------------------------------------------
+-- compatibility only
+getglobal = function (n) return _G[n] end
+setglobal = function (n,v) _G[n] = v end
+
+-------------------------------------------------------------------
+
+local io, tab = io, table
+
+-- IO library (files)
+_STDIN = io.stdin
+_STDERR = io.stderr
+_STDOUT = io.stdout
+_INPUT = io.stdin
+_OUTPUT = io.stdout
+seek = io.stdin.seek   -- sick ;-)
+tmpfile = io.tmpfile
+closefile = io.close
+openfile = io.open
+
+function flush (f)
+  if f then f:flush()
+  else _OUTPUT:flush()
+  end
+end
+
+function readfrom (name)
+  if name == nil then
+    local f, err, cod = io.close(_INPUT)
+    _INPUT = io.stdin
+    return f, err, cod
+  else
+    local f, err, cod = io.open(name, "r")
+    _INPUT = f or _INPUT
+    return f, err, cod
+  end
+end
+
+function writeto (name)
+  if name == nil then
+    local f, err, cod = io.close(_OUTPUT)
+    _OUTPUT = io.stdout
+    return f, err, cod
+  else
+    local f, err, cod = io.open(name, "w")
+    _OUTPUT = f or _OUTPUT
+    return f, err, cod
+  end
+end
+
+function appendto (name)
+  local f, err, cod = io.open(name, "a")
+  _OUTPUT = f or _OUTPUT
+  return f, err, cod
+end
+
+function read (...)
+  local f = _INPUT
+  if rawtype(arg[1]) == 'userdata' then
+    f = tab.remove(arg, 1)
+  end
+  return f:read(unpack(arg))
+end
+
+function write (...)
+  local f = _OUTPUT
+  if rawtype(arg[1]) == 'userdata' then
+    f = tab.remove(arg, 1)
+  end
+  return f:write(unpack(arg))
+end
+