module('luatexja.charrange', package.seeall)
local err, warn, info, log = luatexbase.errwarinf(_NAME)
-require('luatexja.base'); local ltjb = luatexja.base
+luatexja.load_module('base'); local ltjb = luatexja.base
local floor = math.floor
local has_attr = node.has_attribute