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Added an unpacked size getter function. by redboltz · Pull Request #3 · msgpack/msgpack-javascript · GitHub

/ msgpack-javascript Public

Added an unpacked size getter function. #3

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Added an unpacked size getter function. #3

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8 changes: 7 additions & 1 deletion msgpack.codec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -10,9 +10,10 @@ globalScope.msgpack = {
// toString:Boolean = false):ByteArray/ByteString/false
// [1][mix to String] msgpack.pack({}, true) -> "..."
// [2][mix to ByteArray] msgpack.pack({}) -> [...]
unpack: msgpackunpack // msgpack.unpack(data:BinaryString/ByteArray):Mix
unpack: msgpackunpack, // msgpack.unpack(data:BinaryString/ByteArray):Mix
// [1][String to mix] msgpack.unpack("...") -> {}
// [2][ByteArray to mix] msgpack.unpack([...]) -> {}
unpackedLength: msgpackunpackedLength // msgpack.unpackedLength() -> Number
};

var _bin2num = {}, // BinaryStringToNumber { "\00": 0, ... "\ff": 255 }
Expand Down Expand Up @@ -55,6 +56,11 @@ function msgpackunpack(data) { // @param BinaryString/ByteArray:
return decode(); // mix or undefined
}

// msgpack.unpackedLength
function msgpackunpackedLength() { // @return Number: unpacked length
return _idx + 1;
}

// inner - encoder
function encode(rv, // @param ByteArray: result
mix, // @param Mix: source data
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8 changes: 7 additions & 1 deletion msgpack.js
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,8 @@ globalScope.msgpack = {
// [2][ByteArray to mix] msgpack.unpack([...]) -> {}
worker: "msgpack.js", // msgpack.worker - WebWorkers script filename
upload: msgpackupload, // msgpack.upload(url:String, option:Hash, callback:Function)
download: msgpackdownload // msgpack.download(url:String, option:Hash, callback:Function)
download: msgpackdownload,// msgpack.download(url:String, option:Hash, callback:Function)
unpackedLength: msgpackunpackedLength // msgpack.unpackedLength() -> Number
};

var _ie = /MSIE/.test(navigator.userAgent),
Expand Down Expand Up @@ -70,6 +71,11 @@ function msgpackunpack(data) { // @param BinaryString/ByteArray:
return decode(); // mix or undefined
}

// msgpack.unpackedLength
function msgpackunpackedLength() { // @return Number: unpacked length
return _idx + 1;
}

// inner - encoder
function encode(rv, // @param ByteArray: result
mix, // @param Mix: source data
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69 changes: 69 additions & 0 deletions test/unpacked_length.htm
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@@ -0,0 +1,69 @@
<!DOCTYPE html><html lang="ja">
<head>
<meta charset="UTF-8" />
<title>msgpack unpacked length test</title>
<style>
.uutest ol { background-color:dodgerblue;color:white }
.uutest li { padding:5px;border:1px solid #ccc }
.uutest .li0 { background-color:red }
.uutest .li1 { background-color:green }
.uutest .li2 { background-color:red }
.uutest .li3 { background-color:#0a0 }
.uutestinfo { position:fixed;top:10px;right:10px;font-size:xx-large }
.uutestinfo a { border: 3px outset gray;padding:3px;background-color:red;color:white }
.uutestinfo .score { color:black;text-shadow:gray 1px 1px 1px }
.uutestinfo .ngzone {}
</style>
<script src="../msgpack.js"></script>
<script src="uupaa.js"></script>
<script>
uu.test = function(hash) {
var r, i;

for (i in hash) {
v = hash[i];
if (v === "") { // caption
uu.ok(i);
} else {
r = v();
uu.ok(i, r[0], r[1], r[2]);
}
}
uu.ok();
};
uu.ready(function(uu) {

uu.test({
"Get unpacked length": "",
"get unpacked length": function() {
var pack = msgpack.pack(12345);
var pl = pack.length;
var rv = msgpack.unpack(pack);
var ul = msgpack.unpackedLength();
return [ul, "==", pl];
},
"multiple unpack": function() {
var pack1 = msgpack.pack(1);
var pack2 = msgpack.pack(65535);
var pack3 = msgpack.pack(65536);
var pack = pack1.concat(pack2).concat(pack3);
var pl1 = pack1.length;
var pl2 = pack2.length;
var pl3 = pack3.length;

var rv1 = msgpack.unpack(pack);
var ul1 = msgpack.unpackedLength();
pack = pack.slice(ul1, pack.length);
var rv2 = msgpack.unpack(pack);
var ul2 = msgpack.unpackedLength();
pack = pack.slice(ul2, pack.length);
var rv3 = msgpack.unpack(pack);
var ul3 = msgpack.unpackedLength();
pack = pack.slice(ul3, pack.length);
var rest = pack.length;
return [[ul1, ul2, ul3, rest], "==", [pl1, pl2, pl3, 0]];
},
});
});
</script>
</head><body></body></html>
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