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author | 2008-11-13 09:49:11 +0000 | |
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committer | 2008-11-13 09:49:11 +0000 | |
commit | e44a7e37b6c7b5961adaffc62b9042b8d442938e (patch) | |
tree | 95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojox/encoding/tests/compression/lzw.js | |
parent | a62b9742ee5e28bcec6872d88f50f25b820914f6 (diff) | |
download | scuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz scuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.zip |
New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
Diffstat (limited to 'includes/js/dojox/encoding/tests/compression/lzw.js')
-rw-r--r-- | includes/js/dojox/encoding/tests/compression/lzw.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/includes/js/dojox/encoding/tests/compression/lzw.js b/includes/js/dojox/encoding/tests/compression/lzw.js new file mode 100644 index 0000000..7956a0e --- /dev/null +++ b/includes/js/dojox/encoding/tests/compression/lzw.js @@ -0,0 +1,54 @@ +if(!dojo._hasResource["dojox.encoding.tests.compression.lzw"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dojox.encoding.tests.compression.lzw"] = true; +dojo.provide("dojox.encoding.tests.compression.lzw"); +dojo.require("dojox.encoding.compression.lzw"); +dojo.require("dojox.encoding.bits"); + +(function(){ + var msg1 = "The rain in Spain falls mainly on the plain."; + var msg2 = "The rain in Spain falls mainly on the plain.1"; + var msg3 = "The rain in Spain falls mainly on the plain.ab"; + var msg4 = "The rain in Spain falls mainly on the plain.!@#"; + var dc = dojox.encoding.compression, dcb = dojox.encoding.bits, dcl = dc.lzw; + + var s2b = function(s){ + var b = []; + for(var i = 0; i < s.length; ++i){ + b.push(s.charCodeAt(i)); + } + return b; + }; + + var b2s = function(b){ + var s = []; + dojo.forEach(b, function(c){ s.push(String.fromCharCode(c)); }); + return s.join(""); + }; + + var encode = function(msg){ + var x = new dcb.OutputStream(), encoder = new dcl.Encoder(128); + dojo.forEach(s2b(msg), function(v){ encoder.encode(v, x); }); + encoder.flush(x); + console.debug("bits =", x.getWidth()); + return x.getBuffer(); + }; + + var decode = function(n, buf){ + var x = new dcb.InputStream(buf, buf.length * 8), decoder = new dcl.Decoder(128), t = [], w = 0; + while(w < n){ + var v = decoder.decode(x); + t.push(v); + w += v.length; + } + return t.join(""); + }; + + tests.register("dojox.encoding.tests.compression.lzw", [ + function testLzwMsg1(t){ t.assertEqual(msg1, decode(msg1.length, encode(msg1))); }, + function testLzwMsg2(t){ t.assertEqual(msg2, decode(msg2.length, encode(msg2))); }, + function testLzwMsg3(t){ t.assertEqual(msg3, decode(msg3.length, encode(msg3))); }, + function testLzwMsg4(t){ t.assertEqual(msg4, decode(msg4.length, encode(msg4))); } + ]); +})(); + +} |