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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/digests/_base.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/digests/_base.js')
-rw-r--r-- | includes/js/dojox/encoding/digests/_base.js | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/includes/js/dojox/encoding/digests/_base.js b/includes/js/dojox/encoding/digests/_base.js new file mode 100644 index 0000000..3ebae22 --- /dev/null +++ b/includes/js/dojox/encoding/digests/_base.js @@ -0,0 +1,78 @@ +if(!dojo._hasResource["dojox.encoding.digests._base"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dojox.encoding.digests._base"] = true; +dojo.provide("dojox.encoding.digests._base"); + +(function(){ + //TODO: see if it makes sense to meld this into one with the + // crypto base enums + var d=dojox.encoding.digests; + d.outputTypes={ + // summary + // Enumeration for input and output encodings. + Base64:0, Hex:1, String:2, Raw:3 + }; + + // word-based addition + d.addWords=function(/* word */a, /* word */b){ + // summary + // add a pair of words together with rollover + var l=(a&0xFFFF)+(b&0xFFFF); + var m=(a>>16)+(b>>16)+(l>>16); + return (m<<16)|(l&0xFFFF); // word + }; + + // word-based conversion method, for efficiency sake; + // most digests operate on words, and this should be faster + // than the encoding version (which works on bytes). + var chrsz=8; + var mask=(1<<chrsz)-1; + + d.stringToWord=function(/* string */s){ + // summary + // convert a string to a word array + var wa=[]; + for(var i=0, l=s.length*chrsz; i<l; i+=chrsz){ + wa[i>>5]|=(s.charCodeAt(i/chrsz)&mask)<<(i%32); + } + return wa; // word[] + }; + + d.wordToString=function(/* word[] */wa){ + // summary + // convert an array of words to a string + var s=[]; + for(var i=0, l=wa.length*32; i<l; i+=chrsz){ + s.push(String.fromCharCode((wa[i>>5]>>>(i%32))&mask)); + } + return s.join(""); // string + } + + d.wordToHex=function(/* word[] */wa){ + // summary + // convert an array of words to a hex tab + var h="0123456789abcdef", s=[]; + for(var i=0, l=wa.length*4; i<l; i++){ + s.push(h.charAt((wa[i>>2]>>((i%4)*8+4))&0xF)+h.charAt((wa[i>>2]>>((i%4)*8))&0xF)); + } + return s.join(""); // string + } + d.wordToBase64=function(/* word[] */wa){ + // summary + // convert an array of words to base64 encoding, should be more efficient + // than using dojox.encoding.base64 + var p="=", tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", s=[]; + for(var i=0, l=wa.length*4; i<l; i+=3){ + var t=(((wa[i>>2]>>8*(i%4))&0xFF)<<16)|(((wa[i+1>>2]>>8*((i+1)%4))&0xFF)<<8)|((wa[i+2>>2]>>8*((i+2)%4))&0xFF); + for(var j=0; j<4; j++){ + if(i*8+j*6>wa.length*32){ + s.push(p); + } else { + s.push(tab.charAt((t>>6*(3-j))&0x3F)); + } + } + } + return s.join(""); // string + }; +})(); + +} |