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i=e.unit[0].base,t=Q[e.unit[0].prefix];return{magnitude:e.value*10**t,unit:i}}function q(r,o){let e=[];for(let i=0;i<o;i++){let t=r.readByte(),d=Y[t>>4],T=t&15,F=$[r.readInt8()];e.push({prefix:d,power:T,base:F})}return e}function A(r,o){let e=[];for(let i=0;i<o;i++){let t=r.readChar();t!=="\0"&&e.push(t)}return e.join("")}function j(r,o){let e=[];for(let i=0;i<o;i++){let t=r.readChar();t!==" "&&e.push(t)}return e.join("")}function s(r,o,e){let i=[];for(let t=0;t<o;t++)switch(e){case"readUint32":i.push(r.readUint32());break;case"readFloat64":i.push(r.readFloat64());break;case"readFloat32":i.push(r.readFloat32());break;case"readUint8":i.push(r.readUint8());break;case"readBoolean":i.push(r.readBoolean());break;default:break}return i}function re(r){if(r===void 0)return{epoch:null,date:""};let o=r*1e3;return{epoch:o,date:new Date(o).toUTCString()}}function me(r,o){let e=new ie.IOBuffer(r);e.setBigEndian();let i,t={},d=[];t.fileIdentifier=e.readChars(8),t.endian=J[e.readInt8()],t.majorVersion=e.readUint8(),t.minorVersion=e.readUint16(),t.dataDimensionNumber=e.readUint8(),t.dataDimensionExist=e.readByte().toString(2).split("").map(a=>!!Number(a)),i=e.readByte(),t.dataType=W[i>>6],t.dataFormat=Z[i&63],t.dataInstrument=K[e.readInt8()],t.translate=s(e,8,"readUint8"),t.dataAxisType=s(e,8,"readUint8").map(a=>V[a]),t.dataUnits=q(e,8),t.title=A(e,124);for(i in s(e,4,"readUint8"))d.push(G[i>>4]),d.push(G[i&15]);t.dataAxisRanged=d,t.dataPoints=s(e,8,"readUint32"),t.dataOffsetStart=s(e,8,"readUint32"),t.dataOffsetStop=s(e,8,"readUint32"),t.dataAxisStart=s(e,8,"readFloat64"),t.dataAxisStop=s(e,8,"readFloat64"),d=new Uint8Array(4);for(let a=0;a<4;a++)d[a]=e.readByte();let T=1990+(d[0]>>1),F=(d[0]<<3&8)+(d[1]>>5),h=d[2]&31;t.creationTime={year:T,month:F,day:h};for(let 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S=0;S<5;S++)i=e.readInt16(),u.push(i);U.push({scaler:E,unit:u})}t.compoundUnit=U,t.endian==="littleEndian"&&e.setLittleEndian(),e.seek(t.paramStart);let n={parameterSize:e.readUint32(),lowIndex:e.readUint32(),highIndex:e.readUint32(),totalSize:e.readUint32()},I=[];for(let a=0;a<n.highIndex+1;a++){e.skip(4);let u=e.readInt16(),E=q(e,5);e.skip(16);let S=ee[e.readInt32()];e.seek(e.offset-20);let x;switch(S){case"String":x=j(e,16);break;case"Integer":x=e.readInt32(),e.skip(12);break;case"Float":x=e.readFloat64(),e.skip(8);break;case"Complex":x.Real=e.readFloat64(),x.Imag=e.readFloat64();break;case"Infinity":x=e.readInt32(),e.skip(12);break;default:e.skip(16);break}e.skip(4);let c=j(e,28);I.push({name:c.toLowerCase(),scaler:u,unit:E,value:x,valueType:S})}n.paramArray=I,e.seek(t.dataStart),t.endian==="littleEndian"&&e.setLittleEndian();let p={},_=1,l=0;for(let a of 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H={info:{sampleName:f(n,"sample_id").value,creationTime:t.creationTime,revisionTime:t.revisionTime,author:t.author,comment:t.comment,solvent:f(n,"solvent").value,temperature:m(n,"temp_get"),probeName:f(n,"probe_id").value,fieldStrength:m(n,"field_strength"),experiment:f(n,"experiment").value,dimension:t.dataDimensionNumber,nucleus:P,date:N,epoch:X,pulseStrength90:m(n,"x90"),numberOfScans:f(n,"scans").value,relaxationTime:m(n,"relaxation_delay"),dataPoints:t.dataPoints.slice(0,t.dataDimensionNumber),dataOffsetStart:t.dataOffsetStart,dataOffsetStop:t.dataOffsetStop,dataUnits:k,dataSections:Object.keys(p),originFrequency:L,frequencyOffset:O,acquisitionTime:v,spectralWidth:C,spectralWidthClipped:z,dataAxisStart:t.dataAxisStart,dataAxisStop:t.dataAxisStop,resolution:M,decimationRate:f(n,"decimation_rate").value,paramList:JSON.stringify(n.paramArray.map(a=>a.name))},headers:t,parameters:n,data:p};return H.info.digitalFilter=ae(n,o),H}