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zxf10608 / js-xxhash

// ==UserScript==
// @namespace     https://openuserjs.org
// @exclude       *
// @author        zxf10608
// @icon          

// ==UserLibrary==
// @name          js-xxhash
// @version       1.0
// @description   基于纯Javascript实现的一种非常快速的哈希算法
// @license       GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt

// ==/UserScript==

// ==/UserLibrary==

// ==OpenUserJS==
// @author        zxf10608
// code			  https://raw.github.com/pierrec/js-xxhash/master/build/xxhash.min.js
// ==/OpenUserJS==

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this.remainder=new h(0),this._low=1,this._high=0,this;for(var r=t.clone(),i=-1;!this.lt(r);)r.shiftLeft(1,!0),i++;for(this.remainder=this.clone(),this._low=0,this._high=0;i>=0;i--)r.shiftRight(1),this.remainder.lt(r)||(this.remainder.subtract(r),i>=16?this._high|=1<<i-16:this._low|=1<<i);return this},h.prototype.negate=function(){var t=(65535&~this._low)+1;return this._low=65535&t,this._high=~this._high+(t>>>16)&65535,this},h.prototype.equals=h.prototype.eq=function(t){return this._low==t._low&&this._high==t._high},h.prototype.greaterThan=h.prototype.gt=function(t){return this._high>t._high?!0:this._high<t._high?!1:this._low>t._low},h.prototype.lessThan=h.prototype.lt=function(t){return this._high<t._high?!0:this._high>t._high?!1:this._low<t._low},h.prototype.or=function(t){return this._low|=t._low,this._high|=t._high,this},h.prototype.and=function(t){return this._low&=t._low,this._high&=t._high,this},h.prototype.not=function(){return 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h(this._low,this._high)},i=[],e=function(){return h}.apply(r,i),!(void 0!==e&&(t.exports=e))}(this)},function(t,r){var i,e;!function(o){function h(t,r,i,e){return this instanceof h?(this.remainder=null,"string"==typeof t?a.call(this,t,r):"undefined"==typeof r?s.call(this,t):void n.apply(this,arguments)):new h(t,r,i,e)}function n(t,r,i,e){return"undefined"==typeof i?(this._a00=65535&t,this._a16=t>>>16,this._a32=65535&r,this._a48=r>>>16,this):(this._a00=0|t,this._a16=0|r,this._a32=0|i,this._a48=0|e,this)}function s(t){return this._a00=65535&t,this._a16=t>>>16,this._a32=0,this._a48=0,this}function a(t,r){r=r||10,this._a00=0,this._a16=0,this._a32=0,this._a48=0;for(var i=u[r]||new h(Math.pow(r,5)),e=0,o=t.length;o>e;e+=5){var n=Math.min(5,o-e),s=parseInt(t.slice(e,e+n),r);this.multiply(5>n?new h(Math.pow(r,n)):i).add(new h(s))}return this}var 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t%=64,t>=48?(this._a48=this._a00<<t-48,this._a32=0,this._a16=0,this._a00=0):t>=32?(t-=32,this._a48=this._a16<<t|this._a00>>16-t,this._a32=this._a00<<t&65535,this._a16=0,this._a00=0):t>=16?(t-=16,this._a48=this._a32<<t|this._a16>>16-t,this._a32=65535&(this._a16<<t|this._a00>>16-t),this._a16=this._a00<<t&65535,this._a00=0):(this._a48=this._a48<<t|this._a32>>16-t,this._a32=65535&(this._a32<<t|this._a16>>16-t),this._a16=65535&(this._a16<<t|this._a00>>16-t),this._a00=this._a00<<t&65535),r||(this._a48&=65535),this},h.prototype.rotateLeft=h.prototype.rotl=function(t){if(t%=64,0==t)return this;if(t>=32){var r=this._a00;if(this._a00=this._a32,this._a32=r,r=this._a48,this._a48=this._a16,this._a16=r,32==t)return this;t-=32}var i=this._a48<<16|this._a32,e=this._a16<<16|this._a00,o=i<<t|e>>>32-t,h=e<<t|i>>>32-t;return this._a00=65535&h,this._a16=h>>>16,this._a32=65535&o,this._a48=o>>>16,this},h.prototype.rotateRight=h.prototype.rotr=function(t){if(t%=64,0==t)return this;if(t>=32){var r=this._a00;if(this._a00=this._a32,this._a32=r,r=this._a48,this._a48=this._a16,this._a16=r,32==t)return this;t-=32}var i=this._a48<<16|this._a32,e=this._a16<<16|this._a00,o=i>>>t|e<<32-t,h=e>>>t|i<<32-t;return this._a00=65535&h,this._a16=h>>>16,this._a32=65535&o,this._a48=o>>>16,this},h.prototype.clone=function(){return new h(this._a00,this._a16,this._a32,this._a48)},i=[],e=function(){return h}.apply(r,i),!(void 0!==e&&(t.exports=e))}(this)},function(t,r,i){(function(r){function e(t){for(var r=[],i=0,e=t.length;e>i;i++){var o=t.charCodeAt(i);128>o?r.push(o):2048>o?r.push(192|o>>6,128|63&o):55296>o||o>=57344?r.push(224|o>>12,128|o>>6&63,128|63&o):(i++,o=65536+((1023&o)<<10|1023&t.charCodeAt(i)),r.push(240|o>>18,128|o>>12&63,128|o>>6&63,128|63&o))}return new Uint8Array(r)}function o(){return 2==arguments.length?new o(arguments[1]).update(arguments[0]).digest():this instanceof o?void h.call(this,arguments[0]):new o(arguments[0])}function h(t){return this.seed=t instanceof 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o?this.memory+=t:i?this.memory.set(t.subarray(0,u),this.memsize):t.copy(this.memory,this.memsize,0,u),this.memsize+=u,this;if(this.memsize>0){o?this.memory+=t.slice(0,32-this.memsize):i?this.memory.set(t.subarray(0,32-this.memsize),this.memsize):t.copy(this.memory,this.memsize,0,32-this.memsize);var l=0;if(o){var c;c=n(this.memory.charCodeAt(l+1)<<8|this.memory.charCodeAt(l),this.memory.charCodeAt(l+3)<<8|this.memory.charCodeAt(l+2),this.memory.charCodeAt(l+5)<<8|this.memory.charCodeAt(l+4),this.memory.charCodeAt(l+7)<<8|this.memory.charCodeAt(l+6)),this.v1.add(c.multiply(a)).rotl(31).multiply(s),l+=8,c=n(this.memory.charCodeAt(l+1)<<8|this.memory.charCodeAt(l),this.memory.charCodeAt(l+3)<<8|this.memory.charCodeAt(l+2),this.memory.charCodeAt(l+5)<<8|this.memory.charCodeAt(l+4),this.memory.charCodeAt(l+7)<<8|this.memory.charCodeAt(l+6)),this.v2.add(c.multiply(a)).rotl(31).multiply(s),l+=8,c=n(this.memory.charCodeAt(l+1)<<8|this.memory.charCodeAt(l),this.memory.charCodeAt(l+3)<<8|this.memory.charCodeAt(l+2),this.memory.charCodeAt(l+5)<<8|this.memory.charCodeAt(l+4),this.memory.charCodeAt(l+7)<<8|this.memory.charCodeAt(l+6)),this.v3.add(c.multiply(a)).rotl(31).multiply(s),l+=8,c=n(this.memory.charCodeAt(l+1)<<8|this.memory.charCodeAt(l),this.memory.charCodeAt(l+3)<<8|this.memory.charCodeAt(l+2),this.memory.charCodeAt(l+5)<<8|this.memory.charCodeAt(l+4),this.memory.charCodeAt(l+7)<<8|this.memory.charCodeAt(l+6)),this.v4.add(c.multiply(a)).rotl(31).multiply(s)}else{var c;c=n(this.memory[l+1]<<8|this.memory[l],this.memory[l+3]<<8|this.memory[l+2],this.memory[l+5]<<8|this.memory[l+4],this.memory[l+7]<<8|this.memory[l+6]),this.v1.add(c.multiply(a)).rotl(31).multiply(s),l+=8,c=n(this.memory[l+1]<<8|this.memory[l],this.memory[l+3]<<8|this.memory[l+2],this.memory[l+5]<<8|this.memory[l+4],this.memory[l+7]<<8|this.memory[l+6]),this.v2.add(c.multiply(a)).rotl(31).multiply(s),l+=8,c=n(this.memory[l+1]<<8|this.memory[l],this.memory[l+3]<<8|this.memory[l+2],this.memory[l+5]<<8|this.memory[l+4],this.memory[l+7]<<8|this.memory[l+6]),this.v3.add(c.multiply(a)).rotl(31).multiply(s),l+=8,c=n(this.memory[l+1]<<8|this.memory[l],this.memory[l+3]<<8|this.memory[l+2],this.memory[l+5]<<8|this.memory[l+4],this.memory[l+7]<<8|this.memory[l+6]),this.v4.add(c.multiply(a)).rotl(31).multiply(s)}h+=32-this.memsize,this.memsize=0,o&&(this.memory="")}if(f-32>=h){var p=f-32;do{if(o){var c;c=n(t.charCodeAt(h+1)<<8|t.charCodeAt(h),t.charCodeAt(h+3)<<8|t.charCodeAt(h+2),t.charCodeAt(h+5)<<8|t.charCodeAt(h+4),t.charCodeAt(h+7)<<8|t.charCodeAt(h+6)),this.v1.add(c.multiply(a)).rotl(31).multiply(s),h+=8,c=n(t.charCodeAt(h+1)<<8|t.charCodeAt(h),t.charCodeAt(h+3)<<8|t.charCodeAt(h+2),t.charCodeAt(h+5)<<8|t.charCodeAt(h+4),t.charCodeAt(h+7)<<8|t.charCodeAt(h+6)),this.v2.add(c.multiply(a)).rotl(31).multiply(s),h+=8,c=n(t.charCodeAt(h+1)<<8|t.charCodeAt(h),t.charCodeAt(h+3)<<8|t.charCodeAt(h+2),t.charCodeAt(h+5)<<8|t.charCodeAt(h+4),t.charCodeAt(h+7)<<8|t.charCodeAt(h+6)),this.v3.add(c.multiply(a)).rotl(31).multiply(s),h+=8,c=n(t.charCodeAt(h+1)<<8|t.charCodeAt(h),t.charCodeAt(h+3)<<8|t.charCodeAt(h+2),t.charCodeAt(h+5)<<8|t.charCodeAt(h+4),t.charCodeAt(h+7)<<8|t.charCodeAt(h+6)),this.v4.add(c.multiply(a)).rotl(31).multiply(s)}else{var c;c=n(t[h+1]<<8|t[h],t[h+3]<<8|t[h+2],t[h+5]<<8|t[h+4],t[h+7]<<8|t[h+6]),this.v1.add(c.multiply(a)).rotl(31).multiply(s),h+=8,c=n(t[h+1]<<8|t[h],t[h+3]<<8|t[h+2],t[h+5]<<8|t[h+4],t[h+7]<<8|t[h+6]),this.v2.add(c.multiply(a)).rotl(31).multiply(s),h+=8,c=n(t[h+1]<<8|t[h],t[h+3]<<8|t[h+2],t[h+5]<<8|t[h+4],t[h+7]<<8|t[h+6]),this.v3.add(c.multiply(a)).rotl(31).multiply(s),h+=8,c=n(t[h+1]<<8|t[h],t[h+3]<<8|t[h+2],t[h+5]<<8|t[h+4],t[h+7]<<8|t[h+6]),this.v4.add(c.multiply(a)).rotl(31).multiply(s)}h+=8}while(p>=h)}return f>h&&(o?this.memory+=t.slice(h):i?this.memory.set(t.subarray(h,f),this.memsize):t.copy(this.memory,this.memsize,h,f),this.memsize=f-h),this},o.prototype.digest=function(){var t,r,i=this.memory,e="string"==typeof i,o=0,h=this.memsize,c=new n;for(this.total_len>=32?(t=this.v1.clone().rotl(1),t.add(this.v2.clone().rotl(7)),t.add(this.v3.clone().rotl(12)),t.add(this.v4.clone().rotl(18)),t.xor(this.v1.multiply(a).rotl(31).multiply(s)),t.multiply(s).add(f),t.xor(this.v2.multiply(a).rotl(31).multiply(s)),t.multiply(s).add(f),t.xor(this.v3.multiply(a).rotl(31).multiply(s)),t.multiply(s).add(f),t.xor(this.v4.multiply(a).rotl(31).multiply(s)),t.multiply(s).add(f)):t=this.seed.clone().add(l),t.add(c.fromNumber(this.total_len));h-8>=o;)e?c.fromBits(i.charCodeAt(o+1)<<8|i.charCodeAt(o),i.charCodeAt(o+3)<<8|i.charCodeAt(o+2),i.charCodeAt(o+5)<<8|i.charCodeAt(o+4),i.charCodeAt(o+7)<<8|i.charCodeAt(o+6)):c.fromBits(i[o+1]<<8|i[o],i[o+3]<<8|i[o+2],i[o+5]<<8|i[o+4],i[o+7]<<8|i[o+6]),c.multiply(a).rotl(31).multiply(s),t.xor(c).rotl(27).multiply(s).add(f),o+=8;for(h>=o+4&&(e?c.fromBits(i.charCodeAt(o+1)<<8|i.charCodeAt(o),i.charCodeAt(o+3)<<8|i.charCodeAt(o+2),0,0):c.fromBits(i[o+1]<<8|i[o],i[o+3]<<8|i[o+2],0,0),t.xor(c.multiply(s)).rotl(23).multiply(a).add(u),o+=4);h>o;)c.fromBits(e?i.charCodeAt(o++):i[o++],0,0,0),t.xor(c.multiply(l)).rotl(11).multiply(s);return r=t.clone().shiftRight(33),t.xor(r).multiply(a),r=t.clone().shiftRight(29),t.xor(r).multiply(u),r=t.clone().shiftRight(32),t.xor(r),this.init(this.seed),t},t.exports=o}).call(r,i(0).Buffer)}])});