url safe base64 for lua
以"-_"替换"+/",并去掉了"==",可以安全地在url中传输。 用法:
local luaSafeBase64 = require('safeBase64')
local encoded = luaSafeBase64.encode("abc")
print("encoded: ", encoded)
local decoded = luaSafeBase64.decode(encoded)
print("decoded: ", decoded)