tesseract.js/dist/tesseract.min.js

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/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
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Uint8Array(this.a.buffer):this.a,this.b),J=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],G=Array(19);for(k=A,$.d(1,1,s),$.d(k,2,s),I=P(this,f),O=S(L=B(this.U,15)),D=S(C=B(this.T,7)),T=286;257<T&&0===L[T-1];T--);for(R=30;1<R&&0===C[R-1];R--);var H,V,W,K,X,Z,Q=T,tt=R,et=new(o?Uint32Array:Array)(Q+tt),rt=new(o?Uint32Array:Array)(316),it=new(o?Uint8Array:Array)(19);for(H=V=0;H<Q;H++)et[V++]=L[H];for(H=0;H<tt;H++)et[V++]=C[H];if(!o)for(H=0,K=it.length;H<K;++H)it[H]=0;for(H=X=0,K=et.length;H<K;H+=V){for(V=1;H+V<K&&et[H+V]===et[H];++V);if(W=V,0===et[H])if(3>W)for(;0<W--;)rt[X++]=0,it[0]++;else for(;0<W;)(Z=138>W?W:138)>W-3&&Z<W&&(Z=W-3),10>=Z?(rt[X++]=17,rt[X++]=Z-3,it[17]++):(rt[X++]=18,rt[X++]=Z-11,it[18]++),W-=Z;else if(rt[X++]=et[H],it[et[H]]++,3>--W)for(;0<W--;)rt[X++]=et[H],it[et[H]]++;else for(;0<W;)(Z=6>W?W:6)>W-3&&Z<W&&(Z=W-3),rt[X++]=16,rt[X++]=Z-3,it[16]++,W-=Z}for(t=o?rt.subarray(0,X):rt.slice(0,X),z=B(it,7),q=0;19>q;q++)G[q]=z[J[q]];for(j=19;4<j&&0===G[j-1];j--);for(M=S(z),$.d(T-257,5,s),$.d(R-1,5,s),$.d(j-4,4,s),q=0;q<j;q++)$.d(G[q],3,s);for(q=0,F=t.length;q<F;q++)if(Y=t[q],$.d(M[Y],z[Y],s),16<=Y){switch(q++,Y){case 16:N=2;break;case 17:N=3;break;case 18:N=7;break;default:i("invalid code: "+Y)}$.d(t[q],N,s)}var nt,st,ot,at,ht,ft,ut,ct,lt=[O,L],pt=[D,C];for(ht=lt[0],ft=lt[1],ut=pt[0],ct=pt[1],nt=0,st=I.length;nt<st;++nt)if(ot=I[nt],$.d(ht[ot],ft[ot],s),256<ot)$.d(I[++nt],I[++nt],s),at=I[++nt],$.d(ut[at],ct[at],s),$.d(I[++nt],I[++nt],s);else if(256===ot)break;this.a=$.finish(),this.b=this.a.length;break;default:i("invalid compression type")}return this.a};var k=function(){function t(t){switch(s){case 3===t:return[257,t-3,0];case 4===t:return[258,t-4,0];case 5===t:return[259,t-5,0];case 6===t:return[260,t-6,0];case 7===t:return[261,t-7,0];case 8===t:return[262,t-8,0];case 9===t:return[263,t-9,0];case 10===t:return[264,t-10,0];case 12>=t:return[265,t-11,1];case 14>=t:return[266,t-13,1];case 16>=t:return[267,t-15,1];case 18>=t:return[268,t-17,1];case 22>=t:return[269,t-19,2];case 26>=t:return[270,t-23,2];case 30>=t:return[271,t-27,2];case 34>=t:return[272,t-31,2];case 42>=t:return[273,t-35,3];case 50>=t:return[274,t-43,3];case 58>=t:return[275,t-51,3];case 66>=t:return[276,t-59,3];case 82>=t:return[277,t-67,4];case 98>=t:return[278,t-83,4];case 114>=t:return[279,t-99,4];case 130>=t:return[280,t-115,4];case 162>=t:return[281,t-131,5];case 194>=t:return[282,t-163,5];case 226>=t:return[283,t-195,5];case 257>=t:return[284,t-227,5];case 258===t:return[285,t-258,0];default:i("invalid length: "+t)}}var e,r,n=[];for(e=3;258>=e;e++)r=t(e),n[e]=r[2]<<24|r[1]<<16|r[0];return n}(),I=o?new Uint32Array(k):k;function P(t,e){function r(t,e){var r,n,o,a,h=t.N,f=[],u=0;switch(r=I[t.length],f[u++]=65535&r,f[u++]=r>>16&255,f[u++]=r>>24,s){case 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n,s,a,h,f,u=new(o?Uint16Array:Array)(r),c=new(o?Uint8Array:Array)(r),l=new(o?Uint8Array:Array)(e),p=Array(r),d=Array(r),m=Array(r),y=(1<<r)-e,g=1<<r-1;for(u[r-1]=e,s=0;s<r;++s)y<g?c[s]=0:(c[s]=1,y-=g),y<<=1,u[r-2-s]=(u[r-1-s]/2|0)+e;for(u[0]=c[0],p[0]=Array(u[0]),d[0]=Array(u[0]),s=1;s<r;++s)u[s]>2*u[s-1]+c[s]&&(u[s]=2*u[s-1]+c[s]),p[s]=Array(u[s]),d[s]=Array(u[s]);for(n=0;n<e;++n)l[n]=r;for(a=0;a<u[r-1];++a)p[r-1][a]=t[a],d[r-1][a]=a;for(n=0;n<r;++n)m[n]=0;for(1===c[r-1]&&(--l[0],++m[r-1]),s=r-2;0<=s;--s){for(h=n=0,f=m[s+1],a=0;a<u[s];a++)(h=p[s+1][f]+p[s+1][f+1])>t[n]?(p[s][a]=h,d[s][a]=e,f+=2):(p[s][a]=t[n],d[s][a]=n,++n);m[s]=0,1===c[s]&&i(s)}return l}(i,i.length,e),s=0,a=r.length;s<a;++s)u[r[s].index]=n[s];return u}function S(t){var e,r,i,n,s=new(o?Uint16Array:Array)(t.length),a=[],h=[],f=0;for(e=0,r=t.length;e<r;e++)a[t[e]]=1+(0|a[t[e]]);for(e=1,r=16;e<=r;e++)h[e]=f,f+=0|a[e],f<<=1;for(e=0,r=t.length;e<r;e++)for(f=h[t[e]],h[t[e]]+=1,i=s[e]=0,n=t[e];i<n;i++)s[e]=s[e]<<1|1&f,f>>>=1;return s}function R(t,e){this.input=t,this.b=this.c=0,this.g={},e&&(e.flags&&(this.g=e.flags),"string"==typeof e.filename&&(this.filename=e.filename),"string"==typeof e.comment&&(this.w=e.comment),e.deflateOptions&&(this.l=e.deflateOptions)),this.l||(this.l={})}R.prototype.h=function(){var t,e,r,i,s,a,h,f,u=new(o?Uint8Array:Array)(32768),c=0,l=this.input,p=this.c,m=this.filename,y=this.w;if(u[c++]=31,u[c++]=139,u[c++]=8,t=0,this.g.fname&&(t|=O),this.g.fcomment&&(t|=C),this.g.fhcrc&&(t|=L),u[c++]=t,e=(Date.now?Date.now():+new Date)/1e3|0,u[c++]=255&e,u[c++]=e>>>8&255,u[c++]=e>>>16&255,u[c++]=e>>>24&255,u[c++]=0,u[c++]=j,this.g.fname!==n){for(h=0,f=m.length;h<f;++h)255<(a=m.charCodeAt(h))&&(u[c++]=a>>>8&255),u[c++]=255&a;u[c++]=0}if(this.g.comment){for(h=0,f=y.length;h<f;++h)255<(a=y.charCodeAt(h))&&(u[c++]=a>>>8&255),u[c++]=255&a;u[c++]=0}return this.g.fhcrc&&(r=65535&d(u,0,c),u[c++]=255&r,u[c++]=r>>>8&255),this.l.outputBuffer=u,this.l.outputIndex=c,u=(s=new v(l,this.l)).h(),c=s.b,o&&(c+8>u.buffer.byteLength?(this.a=new Uint8Array(c+8),this.a.set(new Uint8Array(u.buffer)),u=this.a):u=new Uint8Array(u.buffer)),i=d(l,n,n),u[c++]=255&i,u[c++]=i>>>8&255,u[c++]=i>>>16&255,u[c++]=i>>>24&255,f=l.length,u[c++]=255&f,u[c++]=f>>>8&255,u[c++]=f>>>16&255,u[c++]=f>>>24&255,this.c=p,o&&c<u.length&&(this.a=u=u.subarray(0,c)),u};var j=255,L=2,O=8,C=16;function D(t,e){switch(this.o=[],this.p=32768,this.e=this.j=this.c=this.s=0,this.input=o?new Uint8Array(t):t,this.u=!1,this.q=M,this.K=!1,!e&&(e={})||(e.index&&(this.c=e.index),e.bufferSize&&(this.p=e.bufferSize),e.bufferType&&(this.q=e.bufferType),e.resize&&(this.K=e.resize)),this.q){case z:this.b=32768,this.a=new(o?Uint8Array:Array)(32768+this.p+258);break;case M:this.b=0,this.a=new(o?Uint8Array:Array)(this.p),this.f=this.S,this.z=this.O,this.r=this.Q;break;default:i(Error("invalid inflate mode"))}}var z=0,M=1;D.prototype.i=function(){for(;!this.u;){var t=nt(this,3);switch(1&t&&(this.u=s),t>>>=1){case 0:var e=this.input,r=this.c,a=this.a,h=this.b,f=e.length,u=n,c=a.length,l=n;switch(this.e=this.j=0,r+1>=f&&i(Error("invalid uncompressed block header: LEN")),u=e[r++]|e[r++]<<8,r+1>=f&&i(Error("invalid uncompressed block header: NLEN")),u===~(e[r++]|e[r++]<<8)&&i(Error("invalid uncompressed block header: length verify")),r+u>e.length&&i(Error("input buffer is broken")),this.q){case z:for(;h+u>a.length;){if(u-=l=c-h,o)a.set(e.subarray(r,r+l),h),h+=l,r+=l;else 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Uint16Array(q):q,$=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,258,258],J=o?new Uint16Array($):$,G=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0],H=o?new Uint8Array(G):G,V=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577],W=o?new Uint16Array(V):V,K=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],X=o?new Uint8Array(K):K,Z=new(o?Uint8Array:Array)(288);for(Y=0,N=Z.length;Y<N;++Y)Z[Y]=143>=Y?8:255>=Y?9:279>=Y?7:8;var Q,tt,et=w(Z),rt=new(o?Uint8Array:Array)(30);for(Q=0,tt=rt.length;Q<tt;++Q)rt[Q]=5;var it=w(rt);function nt(t,e){for(var r,n=t.j,s=t.e,o=t.input,a=t.c,h=o.length;s<e;)a>=h&&i(Error("input buffer is broken")),n|=o[a++]<<s,s+=8;return r=n&(1<<e)-1,t.j=n>>>e,t.e=s-e,t.c=a,r}function st(t,e){for(var r,n,s=t.j,o=t.e,a=t.input,h=t.c,f=a.length,u=e[0],c=e[1];o<c&&!(h>=f);)s|=a[h++]<<o,o+=8;return(n=(r=u[s&(1<<c)-1])>>>16)>o&&i(Error("invalid code length: "+n)),t.j=s>>n,t.e=o-n,t.c=h,65535&r}function ot(t){this.input=t,this.c=0,this.G=[],this.R=!1}function at(t){if("string"==typeof t){var e,r,i=t.split("");for(e=0,r=i.length;e<r;e++)i[e]=(255&i[e].charCodeAt(0))>>>0;t=i}for(var n,s=1,o=0,a=t.length,h=0;0<a;){a-=n=1024<a?1024:a;do{o+=s+=t[h++]}while(--n);s%=65521,o%=65521}return(o<<16|s)>>>0}function ht(t,e){var r,n;switch(this.input=t,this.c=0,!e&&(e={})||(e.index&&(this.c=e.index),e.verify&&(this.V=e.verify)),r=t[this.c++],n=t[this.c++],15&r){case ft:this.method=ft;break;default:i(Error("unsupported compression method"))}0!=((r<<8)+n)%31&&i(Error("invalid fcheck flag:"+((r<<8)+n)%31)),32&n&&i(Error("fdict flag is not supported")),this.J=new D(t,{index:this.c,bufferSize:e.bufferSize,bufferType:e.bufferType,resize:e.resize})}D.prototype.r=function(t,e){var r=this.a,i=this.b;this.A=t;for(var n,s,o,a,h=r.length-258;256!==(n=st(this,t));)if(256>n)i>=h&&(this.b=i,r=this.f(),i=this.b),r[i++]=n;else for(a=J[s=n-257],0<H[s]&&(a+=nt(this,H[s])),n=st(this,e),o=W[n],0<X[n]&&(o+=nt(this,X[n])),i>=h&&(this.b=i,r=this.f(),i=this.b);a--;)r[i]=r[i++-o];for(;8<=this.e;)this.e-=8,this.c--;this.b=i},D.prototype.Q=function(t,e){var r=this.a,i=this.b;this.A=t;for(var n,s,o,a,h=r.length;256!==(n=st(this,t));)if(256>n)i>=h&&(h=(r=this.f()).length),r[i++]=n;else for(a=J[s=n-257],0<H[s]&&(a+=nt(this,H[s])),n=st(this,e),o=W[n],0<X[n]&&(o+=nt(this,X[n])),i+a>h&&(h=(r=this.f()).length);a--;)r[i]=r[i++-o];for(;8<=this.e;)this.e-=8,this.c--;this.b=i},D.prototype.f=function(){var t,e,r=new(o?Uint8Array:Array)(this.b-32768),i=this.b-32768,n=this.a;if(o)r.set(n.subarray(32768,r.length));else for(t=0,e=r.length;t<e;++t)r[t]=n[t+32768];if(this.o.push(r),this.s+=r.length,o)n.set(n.subarray(i,i+32768));else for(t=0;32768>t;++t)n[t]=n[i+t];return this.b=32768,n},D.prototype.S=function(t){var e,r,i,n=this.input.length/this.c+1|0,s=this.input,a=this.a;return t&&("number"==typeof t.B&&(n=t.B),"number"==typeof t.M&&(n+=t.M)),2>n?r=(i=(s.length-this.c)/this.A[2]/2*258|0)<a.length?a.length+i:a.length<<1:r=a.length*n,o?(e=new Uint8Array(r)).set(a):e=a,this.a=e},D.prototype.z=function(){var t,e,r,i,n,s=0,a=this.a,h=this.o,f=new(o?Uint8Array:Array)(this.s+(this.b-32768));if(0===h.length)return o?this.a.subarray(32768,this.b):this.a.slice(32768,this.b);for(e=0,r=h.length;e<r;++e)for(i=0,n=(t=h[e]).length;i<n;++i)f[s++]=t[i];for(e=32768,r=this.b;e<r;++e)f[s++]=a[e];return this.o=[],this.buffer=f},D.prototype.O=function(){var t,e=this.b;return o?this.K?(t=new Uint8Array(e)).set(this.a.subarray(0,e)):t=this.a.subarray(0,e):(this.a.length>e&&(this.a.length=e),t=this.a),this.buffer=t},ot.prototype.i=function(){for(var t=this.input.length;this.c<t;){var e,r,a=new g,h=n,f=n,u=n,c=n,l=n,p=n,m=n,y=this.input,b=this.c;switch(a.C=y[b++],a.D=y[b++],(31!==a.C||139!==a.D)&&i(Error("invalid file signature:"+a.C+","+a.D)),a.v=y[b++],a.v){case 8:break;default:i(Error("unknown compression method: "+a.v))}if(a.n=y[b++],r=y[b++]|y[b++]<<8|y[b++]<<16|y[b++]<<24,a.$=new Date(1e3*r),a.ba=y[b++],a.aa=y[b++],0<(4&a.n)&&(a.W=y[b++]|y[b++]<<8,b+=a.W),0<(a.n&O)){for(p=[],l=0;0<(c=y[b++]);)p[l++]=String.fromCharCode(c);a.name=p.join("")}if(0<(a.n&C)){for(p=[],l=0;0<(c=y[b++]);)p[l++]=String.fromCharCode(c);a.w=p.join("")}0<(a.n&L)&&(a.P=65535&d(y,0,b),a.P!==(y[b++]|y[b++]<<8)&&i(Error("invalid header crc16"))),h=y[y.length-4]|y[y.length-3]<<8|y[y.length-2]<<16|y[y.length-1]<<24,y.length-b-4-4<512*h&&(u=h),f=new D(y,{index:b,bufferSize:u}),a.data=e=f.i(),b=f.c,a.Y=m=(y[b++]|y[b++]<<8|y[b++]<<16|y[b++]<<24)>>>0,d(e,n,n)!==m&&i(Error("invalid CRC-32 checksum: 0x"+d(e,n,n).toString(16)+" / 0x"+m.toString(16))),a.Z=h=(y[b++]|y[b++]<<8|y[b++]<<16|y[b++]<<24)>>>0,(4294967295&e.length)!==h&&i(Error("invalid input size: "+(4294967295&e.length)+" / "+h)),this.G.push(a),this.c=b}this.R=s;var w,v,x,A=this.G,E=0,U=0;for(w=0,v=A.length;w<v;++w)U+=A[w].data.length;if(o)for(x=new Uint8Array(U),w=0;w<v;++w)x.set(A[w].data,E),E+=A[w].data.length;else{for(x=[],w=0;w<v;++w)x[w]=A[w].data;x=Array.prototype.concat.apply([],x)}return x},ht.prototype.i=function(){var t,e=this.input;return t=this.J.i(),this.c=this.J.c,this.V&&((e[this.c++]<<24|e[this.c++]<<16|e[this.c++]<<8|e[this.c++])>>>0!==at(t)&&i(Error("invalid adler-32 checksum"))),t};var ft=8;function ut(t,e){this.input=t,this.a=new(o?Uint8Array:Array)(32768),this.k=ct.t;var r,i={};for(r in!e&&(e={})||"number"!=typeof e.compressionType||(this.k=e.compressionType),e)i[r]=e[r];i.outputBuffer=this.a,this.I=new v(this.input,i)}var ct=E;function lt(t,e){var r;return r=new ut(t).h(),e||(e={}),e.H?r:yt(r)}function pt(t,e){var r;return t.subarray=t.slice,r=new ht(t).i(),e||(e={}),e.noBuffer?r:yt(r)}function dt(t,e){var r;return t.subarray=t.slice,r=new R(t).h(),e||(e={}),e.H?r:yt(r)}function mt(t,e){var r;return t.subarray=t.slice,r=new ot(t).i(),e||(e={}),e.H?r:yt(r)}function yt(t){var e,i,n=new r(t.length);for(e=0,i=t.length;e<i;++e)n[e]=t[e];return n}ut.prototype.h=function(){var t,e,r,n,s,a,h,f=0;switch(h=this.a,t=ft){case ft:e=Math.LOG2E*Math.log(32768)-8;break;default:i(Error("invalid compression method"))}switch(r=e<<4|t,h[f++]=r,t){case ft:switch(this.k){case ct.NONE:s=0;break;case ct.L:s=1;break;case ct.t:s=2;break;default:i(Error("unsupported compression type"))}break;default:i(Error("invalid compression method"))}return n=s<<6|0,h[f++]=n|31-(256*r+n)%31,a=at(this.input),this.I.b=f,f=(h=this.I.h()).length,o&&((h=new Uint8Array(h.buffer)).length<=f+4&&(this.a=new Uint8Array(h.length+4),this.a.set(h),h=this.a),h=h.subarray(0,f+4)),h[f++]=a>>24&255,h[f++]=a>>16&255,h[f++]=a>>8&255,h[f++]=255&a,h},e.deflate=function(e,r,i){t.nextTick(function(){var t,n;try{n=lt(e,i)}catch(e){t=e}r(t,n)})},e.deflateSync=lt,e.inflate=function(e,r,i){t.nextTick(function(){var t,n;try{n=pt(e,i)}catch(e){t=e}r(t,n)})},e.inflateSync=pt,e.gzip=function(e,r,i){t.nextTick(function(){var t,n;try{n=dt(e,i)}catch(e){t=e}r(t,n)})},e.gzipSync=dt,e.gunzip=function(e,r,i){t.nextTick(function(){var t,n;try{n=mt(e,i)}catch(e){t=e}r(t,n)})},e.gunzipSync=mt}).call(this)}).call(this,r(1),r(0).Buffer)},function(t,e){var r;r=function(){return this}();try{r=r||Function("return this")()||(0,eval)("this")}catch(t){"object"==typeof window&&(r=window)}t.exports=r},function(t,e,r){"use strict";e.byteLength=function(t){return 3*t.length/4-f(t)},e.toByteArray=function(t){var e,r,i,o,a,h=t.length;o=f(t),a=new s(3*h/4-o),r=o>0?h-4:h;var u=0;for(e=0;e<r;e+=4)i=n[t.charCodeAt(e)]<<18|n[t.charCodeAt(e+1)]<<12|n[t.charCodeAt(e+2)]<<6|n[t.charCodeAt(e+3)],a[u++]=i>>16&255,a[u++]=i>>8&255,a[u++]=255&i;2===o?(i=n[t.charCodeAt(e)]<<2|n[t.charCodeAt(e+1)]>>4,a[u++]=255&i):1===o&&(i=n[t.charCodeAt(e)]<<10|n[t.charCodeAt(e+1)]<<4|n[t.charCodeAt(e+2)]>>2,a[u++]=i>>8&255,a[u++]=255&i);return a},e.fromByteArray=function(t){for(var e,r=t.length,n=r%3,s="",o=[],a=0,h=r-n;a<h;a+=16383)o.push(u(t,a,a+16383>h?h:a+16383));1===n?(e=t[r-1],s+=i[e>>2],s+=i[e<<4&63],s+="=="):2===n&&(e=(t[r-2]<<8)+t[r-1],s+=i[e>>10],s+=i[e>>4&63],s+=i[e<<2&63],s+="=");return o.push(s),o.join("")};for(var i=[],n=[],s="undefined"!=typeof Uint8Array?Uint8Array:Array,o="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",a=0,h=o.length;a<h;++a)i[a]=o[a],n[o.charCodeAt(a)]=a;function f(t){var e=t.length;if(e%4>0)throw new Error("Invalid string. Length must be a multiple of 4");return"="===t[e-2]?2:"="===t[e-1]?1:0}function u(t,e,r){for(var n,s,o=[],a=e;a<r;a+=3)n=(t[a]<<16)+(t[a+1]<<8)+t[a+2],o.push(i[(s=n)>>18&63]+i[s>>12&63]+i[s>>6&63]+i[63&s]);return o.join("")}n["-".charCodeAt(0)]=62,n["_".charCodeAt(0)]=63},function(t,e){e.read=function(t,e,r,i,n){var s,o,a=8*n-i-1,h=(1<<a)-1,f=h>>1,u=-7,c=r?n-1:0,l=r?-1:1,p=t[e+c];for(c+=l,s=p&(1<<-u)-1,p>>=-u,u+=a;u>0;s=256*s+t[e+c],c+=l,u-=8);for(o=s&(1<<-u)-1,s>>=-u,u+=i;u>0;o=256*o+t[e+c],c+=l,u-=8);if(0===s)s=1-f;else{if(s===h)return o?NaN:1/0*(p?-1:1);o+=Math.pow(2,i),s-=f}return(p?-1:1)*o*Math.pow(2,s-i)},e.write=function(t,e,r,i,n,s){var o,a,h,f=8*s-n-1,u=(1<<f)-1,c=u>>1,l=23===n?Math.pow(2,-24)-Math.pow(2,-77):0,p=i?0:s-1,d=i?1:-1,m=e<0||0===e&&1/e<0?1:0;for(e=Math.abs(e),isNaN(e)||e===1/0?(a=isNaN(e)?1:0,o=u):(o=Math.floor(Math.log(e)/Math.LN2),e*(h=Math.pow(2,-o))<1&&(o--,h*=2),(e+=o+c>=1?l/h:l*Math.pow(2,1-c))*h>=2&&(o++,h/=2),o+c>=u?(a=0,o=u):o+c>=1?(a=(e*h-1)*Math.pow(2,n),o+=c):(a=e*Math.pow(2,c-1)*Math.pow(2,n),o=0));n>=8;t[r+p]=255&a,p+=d,a/=256,n-=8);for(o=o<<n|a,f+=n;f>0;t[r+p]=255&o,p+=d,o/=256,f-=8);t[r+p-d]|=128*m}},function(t,e){var r={}.toString;t.exports=Array.isArray||function(t){return"[object Array]"==r.call(t)}},function(t,e,r){(function(e){const i=r(20),n=r(23);t.exports=((t,r,s=70)=>{const o=e.from(r),a=n(o);let h=0,f=null,u=null,c=0,l=0;if(a&&"image/bmp"===a.mime){const e=i.decode(o);f=t._malloc(e.data.length*Uint8Array.BYTES_PER_ELEMENT),t.HEAPU8.set(e.data,f),c=e.width,l=e.height,h=4}else{const e=t._malloc(o.length*Uint8Array.BYTES_PER_ELEMENT);t.HEAPU8.set(o,e),u=t._pixReadMem(e,o.length),0===t.getValue(u+28,"i32")&&t.setValue(u+28,s,"i32"),[c,l]=Array(2).fill(0).map((e,r)=>t.getValue(u+4*r,"i32"))}return{w:c,h:l,bytesPerPixel:h,data:f,pix:u}})}).call(this,r(0).Buffer)},function(t,e,r){var i=r(21),n=r(22);t.exports={encode:i,decode:n}},function(t,e,r){(function(e){function r(t){this.buffer=t.data,this.width=t.width,this.height=t.height,this.extraBytes=this.width%4,this.rgbSize=this.height*(3*this.width+this.extraBytes),this.headerInfoSize=40,this.data=[],this.flag="BM",this.reserved=0,this.offset=54,this.fileSize=this.rgbSize+this.offset,this.planes=1,this.bitPP=24,this.compress=0,this.hr=0,this.vr=0,this.colors=0,this.importantColors=0}r.prototype.encode=function(){var t=new e(this.offset+this.rgbSize);this.pos=0,t.write(this.flag,this.pos,2),this.pos+=2,t.writeUInt32LE(this.fileSize,this.pos),this.pos+=4,t.writeUInt32LE(this.reserved,this.pos),this.pos+=4,t.writeUInt32LE(this.offset,this.pos),this.pos+=4,t.writeUInt32LE(this.headerInfoSize,this.pos),this.pos+=4,t.writeUInt32LE(this.width,this.pos),this.pos+=4,t.writeInt32LE(-this.height,this.pos),this.pos+=4,t.writeUInt16LE(this.planes,this.pos),this.pos+=2,t.writeUInt16LE(this.bitPP,this.pos),this.pos+=2,t.writeUInt32LE(this.compress,this.pos),this.pos+=4,t.writeUInt32LE(this.rgbSize,this.pos),this.pos+=4,t.writeUInt32LE(this.hr,this.pos),this.pos+=4,t.writeUInt32LE(this.vr,this.pos),this.pos+=4,t.writeUInt32LE(this.colors,this.pos),this.pos+=4,t.writeUInt32LE(this.importantColors,this.pos),this.pos+=4;for(var r=0,i=3*this.width+this.extraBytes,n=0;n<this.height;n++){for(var s=0;s<this.width;s++){var o=this.pos+n*i+3*s;r++,t[o]=this.buffer[r++],t[o+1]=this.buffer[r++],t[o+2]=this.buffer[r++]}if(this.extraBytes>0){var a=this.pos+n*i+3*this.width;t.fill(0,a,a+this.extraBytes)}}return t},t.exports=function(t,e){return void 0===e&&(e=100),{data:new r(t).encode(),width:t.width,height:t.height}}}).call(this,r(0).Buffer)},function(t,e,r){(function(e){function r(t,e){if(this.pos=0,this.buffer=t,this.is_with_alpha=!!e,this.bottom_up=!0,this.flag=this.buffer.toString("utf-8",0,this.pos+=2),"BM"!=this.flag)throw new Error("Invalid BMP File");this.parseHeader(),this.parseRGBA()}r.prototype.parseHeader=function(){if(this.fileSize=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.reserved=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.offset=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.headerSize=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.width=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.height=this.buffer.readInt32LE(this.pos),this.pos+=4,this.planes=this.buffer.readUInt16LE(this.pos),this.pos+=2,this.bitPP=this.buffer.readUInt16LE(this.pos),this.pos+=2,this.compress=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.rawSize=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.hr=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.vr=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.colors=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.importantColors=this.buffer.readUInt32LE(this.pos),this.pos+=4,16===this.bitPP&&this.is_with_alpha&&(this.bitPP=15),this.bitPP<15){var t=0===this.colors?1<<this.bitPP:this.colors;this.palette=new Array(t);for(var e=0;e<t;e++){var r=this.buffer.readUInt8(this.pos++),i=this.buffer.readUInt8(this.pos++),n=this.buffer.readUInt8(this.pos++),s=this.buffer.readUInt8(this.pos++);this.palette[e]={red:n,green:i,blue:r,quad:s}}}this.height<0&&(this.height*=-1,this.bottom_up=!1)},r.prototype.parseRGBA=function(){var t="bit"+this.bitPP,r=this.width*this.height*4;this.data=new e(r),this[t]()},r.prototype.bit1=function(){var t=Math.ceil(this.width/8),e=t%4,r=this.height>=0?this.height-1:-this.height;for(r=this.height-1;r>=0;r--){for(var i=this.bottom_up?r:this.height-1-r,n=0;n<t;n++)for(var s=this.buffer.readUInt8(this.pos++),o=i*this.width*4+8*n*4,a=0;a<8&&8*n+a<this.width;a++){var h=this.palette[s>>7-a&1];this.data[o+4*a]=0,this.data[o+4*a+1]=h.blue,this.data[o+4*a+2]=h.green,this.data[o+4*a+3]=h.red}0!=e&&(this.pos+=4-e)}},r.prototype.bit4=function(){if(2==this.compress){this.data.fill(255);for(var t=0,e=this.bottom_up?this.height-1:0,r=!1;t<this.data.length;){var i=this.buffer.readUInt8(this.pos++),n=this.buffer.readUInt8(this.pos++);if(0==i){if(0==n){this.bottom_up?e--:e++,t=e*this.width*4,r=!1;continue}if(1==n)break;if(2==n){var s=this.buffer.readUInt8(this.pos++),o=this.buffer.readUInt8(this.pos++);this.bottom_up?e-=o:e+=o,t+=o*this.width*4+4*s}else{for(var a=this.buffer.readUInt8(this.pos++),h=0;h<n;h++)r?f.call(this,15&a):f.call(this,(240&a)>>4),1&h&&h+1<n&&(a=this.buffer.readUInt8(this.pos++)),r=!r;1==(n+1>>1&1)&&this.pos++}}else for(h=0;h<i;h++)r?f.call(this,15&n):f.call(this,(240&n)>>4),r=!r}function f(e){var r=this.palette[e];this.data[t]=0,this.data[t+1]=r.blue,this.data[t+2]=r.green,this.data[t+3]=r.red,t+=4}}else{var u=Math.ceil(this.width/2),c=u%4;for(o=this.height-1;o>=0;o--){var l=this.bottom_up?o:this.height-1-o;for(s=0;s<u;s++){n=this.buffer.readUInt8(this.pos++),t=l*this.width*4+2*s*4;var p=n>>4,d=15&n,m=this.palette[p];if(this.data[t]=0,this.data[t+1]=m.blue,this.data[t+2]=m.green,this.data[t+3]=m.red,2*s+1>=this.width)break;m=this.palette[d],this.data[t+4]=0,this.data[t+4+1]=m.blue,this.data[t+4+2]=m.green,this.data[t+4+3]=m.red}0!=c&&(this.pos+=4-c)}}},r.prototype.bit8=function(){if(1==this.compress){this.data.fill(255);for(var t=0,e=this.bottom_up?this.height-1:0;t<this.data.length;){var r=this.buffer.readUInt8(this.pos++),i=this.buffer.readUInt8(this.pos++);if(0==r){if(0==i){this.bottom_up?e--:e++,t=e*this.width*4;continue}if(1==i)break;if(2==i){var n=this.buffer.readUInt8(this.pos++),s=this.buffer.readUInt8(this.pos++);this.bottom_up?e-=s:e+=s,t+=s*this.width*4+4*n}else{for(var o=0;o<i;o++){var a=this.buffer.readUInt8(this.pos++);h.call(this,a)}!0&i&&this.pos++}}else for(o=0;o<r;o++)h.call(this,i)}function h(e){var r=this.palette[e];this.data[t]=0,this.data[t+1]=r.blue,this.data[t+2]=r.green,this.data[t+3]=r.red,t+=4}}else{var f=this.width%4;for(s=this.height-1;s>=0;s--){var u=this.bottom_up?s:this.height-1-s;for(n=0;n<this.width;n++){i=this.buffer.readUInt8(this.pos++),t=u*this.width*4+4*n;if(i<this.palette.length){var c=this.palette[i];this.data[t]=0,this.data[t+1]=c.blue,this.data[t+2]=c.green,this.data[t+3]=c.red}else this.data[t]=0,this.data[t+1]=255,this.data[t+2]=255,this.data[t+3]=255}0!=f&&(this.pos+=4-f)}}},r.prototype.bit15=function(){for(var t=this.width%3,e=parseInt("11111",2),r=this.height-1;r>=0;r--){for(var i=this.bottom_up?r:this.height-1-r,n=0;n<this.width;n++){var s=this.buffer.readUInt16LE(this.pos);this.pos+=2;var o=(s&e)/e*255|0,a=(s>>5&e)/e*255|0,h=(s>>10&e)/e*255|0,f=s>>15?255:0,u=i*this.width*4+4*n;this.data[u]=f,this.data[u+1]=o,this.data[u+2]=a,this.data[u+3]=h}this.pos+=t}},r.prototype.bit16=function(){var t=this.width%2*2;this.maskRed=31744,this.maskGreen=992,this.maskBlue=31,this.mask0=0,3==this.compress&&(this.maskRed=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.maskGreen=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.maskBlue=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.mask0=this.buffer.readUInt32LE(this.pos),this.pos+=4);for(var e=[0,0,0],r=0;r<16;r++)this.maskRed>>r&1&&e[0]++,this.maskGreen>>r&1&&e[1]++,this.maskBlue>>r&1&&e[2]++;e[1]+=e[0],e[2]+=e[1],e[0]=8-e[0],e[1]-=8,e[2]-=8;for(var i=this.height-1;i>=0;i--){for(var n=this.bottom_up?i:this.height-1-i,s=0;s<this.width;s++){var o=this.buffer.readUInt16LE(this.pos);this.pos+=2;var a=(o&this.maskBlue)<<e[0],h=(o&this.maskGreen)>>e[1],f=(o&this.maskRed)>>e[2],u=n*this.width*4+4*s;this.data[u]=0,this.data[u+1]=a,this.data[u+2]=h,this.data[u+3]=f}this.pos+=t}},r.prototype.bit24=function(){for(var t=this.height-1;t>=0;t--){for(var e=this.bottom_up?t:this.height-1-t,r=0;r<this.width;r++){var i=this.buffer.readUInt8(this.pos++),n=this.buffer.readUInt8(this.pos++),s=this.buffer.readUInt8(this.pos++),o=e*this.width*4+4*r;this.data[o]=0,this.data[o+1]=i,this.data[o+2]=n,this.data[o+3]=s}this.pos+=this.width%4}},r.prototype.bit32=function(){if(3==this.compress){this.maskRed=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.maskGreen=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.maskBlue=this.buffer.readUInt32LE(this.pos),this.pos+=4,this.mask0=this.buffer.readUInt32LE(this.pos),this.pos+=4;for(var t=this.height-1;t>=0;t--)for(var e=this.bottom_up?t:this.height-1-t,r=0;r<this.width;r++){var i=this.buffer.readUInt8(this.pos++),n=this.buffer.readUInt8(this.pos++),s=this.buffer.readUInt8(this.pos++),o=this.buffer.readUInt8(this.pos++),a=e*this.width*4+4*r;this.data[a]=i,this.data[a+1]=n,this.data[a+2]=s,this.data[a+3]=o}}else 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i=r(3),n=e.browser?r(2):t=>t,s=r(4),o=r(27),a=r(28);t.exports=class{constructor(t={}){this.worker=null,this.options={...s.defaultOptions,...t},["corePath","workerPath","langPath"].forEach(e=>{i.not.undefined(t[e])&&(this.options={...this.options,[e]:n(t[e])})}),this._currentJob=null,this._queue=[]}recognize(t,e="eng",r={}){return this._sendJob("recognize",t,e,r)}detect(t,e={}){return this._sendJob("detect",t,"osd",e)}recv(t){this._currentJob.id===t.jobId?this._currentJob.handle({...t,data:"resolve"===t.status&&"recognize"===t.action?o(t.data):t.data}):console.warn(`Job ID ${t.jobId} not known.`)}dequeue(){this._currentJob=null,this._queue.length&&this._queue[0]()}terminate(){this.worker&&s.terminateWorker(this),this.worker=null,this._currentJob=null,this._queue=[]}_sendJob(t,e,r,i){return this._delay(n=>{n.send(t,{image:e,lang:r,params:i,options:this.options})})}_delay(t){i.null(this.worker)&&(this.worker=s.spawnWorker(this,this.options));const e=new a(this);return this._queue.push(()=>{this._queue.shift(),this._currentJob=e,t(e)}),i.null(this._currentJob)&&this.dequeue(),e}}}).call(this,r(1))},function(t,e){t.exports={defaultOptions:{langPath:"https://tessdata.projectnaptha.com/4.0.0"}}},function(t){t.exports={name:"tesseract.js",version:"1.0.13",description:"Pure Javascript Multilingual OCR",main:"src/index.js",scripts:{start:"node scripts/server.js",build:"webpack --config scripts/webpack.config.prod.js",prepublishOnly:"npm run build","test:node":"nyc mocha --exit --bail --require ./scripts/test-helper.js ./tests/*.test.js",lint:"eslint src"},browser:{"./src/node/index.js":"./src/browser/index.js"},author:"",contributors:["jeromewu"],license:"Apache-2.0",devDependencies:{eslint:"^5.9.0","eslint-config-airbnb":"^17.1.0","eslint-plugin-import":"^2.14.0","eslint-plugin-jsx-a11y":"^6.1.2","eslint-plugin-react":"^7.11.1","expect.js":"^0.3.1",express:"^4.16.4",mocha:"^5.2.0",nyc:"^13.1.0",webpack:"^4.26.0","webpack-cli":"^3.1.2","webpack-dev-middleware":"^3.4.0"},dependencies:{"check-types":"^7.4.0","is-url":"1.2.2","node-fetch":"^2.3.0","resolve-url":"^0.2.1","tesseract.js-core":"^2.0.0-beta.5","tesseract.js-utils":"^1.0.0-beta.4"},repository:{type:"git",url:"https://github.com/naptha/tesseract.js.git"},bugs:{url:"https://github.com/naptha/tesseract.js/issues"},homepage:"https://github.com/naptha/tesseract.js"}},function(t,e){t.exports=(t=>{const e={...t,paragraphs:[],lines:[],words:[],symbols:[]};return e.blocks.forEach(t=>{const r={...t,page:e,lines:[],words:[],symbols:[]};r.paragraphs.forEach(t=>{const i={...t,block:r,page:e,words:[],symbols:[]};i.lines.forEach(t=>{const n={...t,paragraph:i,block:r,page:e,symbols:[]};n.words.forEach(t=>{const s={...t,line:n,paragraph:i,block:r,page:e};s.symbols.forEach(t=>{const o={...t,word:s,line:n,paragraph:i,block:r,page:e};o.line.symbols.push(o),o.paragraph.symbols.push(o),o.block.symbols.push(o),o.page.symbols.push(o)}),s.paragraph.words.push(s),s.block.words.push(s),s.page.words.push(s)}),n.block.lines.push(n),n.page.lines.push(n)}),i.page.paragraphs.push(i)})}),e})},function(t,e,r){const i=r(4);let n=0;t.exports=class{constructor(t){n+=1,this.id=`Job-${n}-${Math.random().toString(16).slice(3,8)}`,this._worker=t,this._resolve=[],this._reject=[],this._progress=[],this._finally=[]}then(t,e){return this._resolve.push?this._resolve.push(t):t(this._resolve),e&&this.catch(e),this}catch(t){return this._reject.push?this._reject.push(t):t(this._reject),this}progress(t){return this._progress.push(t),this}finally(t){return this._finally.push(t),this}send(t,e){i.sendPacket(this._worker,{jobId:this.id,action:t,payload:e})}handle(t){const{data:e}=t;let r=!1;"resolve"===t.status?(0===this._resolve.length&&console.log(e),this._resolve.forEach(t=>{const r=t(e);r&&"function"==typeof r.then&&console.warn("TesseractJob instances do not chain like ES6 Promises. To convert it into a real promise, use Promise.resolve.")}),this._resolve=e,this._worker.dequeue(),r=!0):"reject"===t.status?(0===this._reject.length&&console.error(e),this._reject.forEach(t=>t(e)),this._reject=e,this._worker.dequeue(),r=!0):"progress"===t.status?this._progress.forEach(t=>t(e)):console.warn("Message type unknown",t.status),r&&this._finally.forEach(t=>t(e))}}}])});
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