A lua library by zengrong.net
This library depend on quick-cocos2d-x framework and following libraries.
- lpack (already in quick-cocos2d-x)
- BitOp (already in quick-cocos2d-x)
- LuaSocket (already in quick-cocos2d-x)
Usage:
local mo_data=assert(require("utils.Gettext").loadMOFromFile("main.mo"))
print(mo_data["hello"])
-- 你好
print(mo_data["world"])
-- nil
Then you'll get a kind of gettext function:
local gettext=assert(require("utils.Gettext").gettextFromFile("main.mo"))
print(gettext("hello"))
-- 你好
print(gettext("world"))
-- world
With a slight modification this will be ready-to-use for the xgettext tool:
_ = assert(require("utils.Gettext").gettextFromFile("main.mo"))
print(_("hello"))
print(_("world"))
It can serialize bytes stream like ActionScript flash.utils.ByteArray
It depends on lpack.
Usage:
-- use lpack to write a pack
local __pack = string.pack("<bihP2", 0x59, 11, 1101, "", "中文")
-- create a ByteArray
local __ba = ByteArray.new()
-- ByteArray can write a lpack buffer directly
__ba:writeBuf(__pack)
-- remember, lua array started from 1
__ba:setPos(1)
-- now, you can read it like actionscript
print("ba.len:", __ba:getLen())
print("ba.readByte:", __ba:readByte())
print("ba.readInt:", __ba:readInt())
print("ba.readShort:", __ba:readShort())
print("ba.readString:", __ba:readStringUShort())
print("ba.available:", __ba:getAvailable())
-- dump it
print("ba.toString(16):", __ba:toString(16))
-- create a ByteArray
local __ba2 = ByteArray.new()
-- you can write some values like actionscript
-- also, you can use chaining calls.
__ba2:writeByte(0x59)
:writeInt(11)
:writeShort(1101)
-- write a empty string
__ba2:writeStringUShort("")
-- write some chinese string
__ba2:writeStringUShort("中文")
-- dump it
print("ba2.toString(10):", __ba2:toString(10))
Above codes will print like these:
ByteArrayVarint depends on BitOP.
ByteArrayVarint implements the Varint encoding in google protocol buffer.
See following:
To understand your simple protocol buffer encoding, you first need to understand varints. Varints are a method of serializing integers using one or more bytes. Smaller numbers take a smaller number of bytes.
Each byte in a varint, except the last byte, has the most significant bit (msb) set – this indicates that there are further bytes to come. The lower 7 bits of each byte are used to store the two's complement representation of the number in groups of 7 bits, least significant group first.
Your can use these methods(and all ByteArray methods) in ByteArrayVarint:
| Method Name | Description |
|---|---|
| ByteArrayVarint.readUVInt() | read a unsigned varint int |
| ByteArrayVarint.writeUVInt() | write a unsigned varint int |
| ByteArrayVarint.readVInt() | read varint int |
| ByteArrayVarint.writeVInt() | write varint int |
| ByteArrayVarint.readStringUVInt() | read a string preceding a unsigned varint int |
| ByteArrayVarint.writeStringUVInt() | write a string preceding a unsigned varint int |
On account of a BitOP limitation, ByteArrayVarint will read a unsigned int as a minus.
## net.SocketTCPThe SocketTCP depends on LuaSocket
Usage:
socket = SocketTCP.new("192.168.18.22", 12001, false)
socket:addEventListener(SocketTCP.EVENT_CONNECTED, onStatus)
socket:addEventListener(SocketTCP.EVENT_CLOSE, onStatus)
socket:addEventListener(SocketTCP.EVENT_CLOSED, onStatus)
socket:addEventListener(SocketTCP.EVENT_CONNECT_FAILURE, onStatus)
socket:addEventListener(SocketTCP.EVENT_DATA, onData)
socket:send(ByteArray.new():writeByte(0x59):getPack())
function onStatus(__event)
echoInfo("socket status: %s", __event.name)
end
function onData(__event)
echoInfo("socket status: %s, data:%s", __event.name, ByteArray.toString(__event.data))
end
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