pdf-lib/dist/pdf-lib.esm.min.js

Create and modify PDF files with JavaScript

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Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0

THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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***************************************************************************** */
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Ht(t,e,n){var r,i,o=-1,a=e[1],s=0,h=7,l=4;for(0===a&&(h=138,l=3),r=0;r<=n;r++)if(i=a,a=e[2*(r+1)+1],!(++s<h&&i===a)){if(s<l)do{Et(t,i,t.bl_tree)}while(0!=--s);else 0!==i?(i!==o&&(Et(t,i,t.bl_tree),s--),Et(t,16,t.bl_tree),jt(t,s-3,2)):s<=10?(Et(t,17,t.bl_tree),jt(t,s-3,3)):(Et(t,18,t.bl_tree),jt(t,s-11,7));s=0,o=i,0===a?(h=138,l=3):i===a?(h=6,l=3):(h=7,l=4)}}yt(Rt);var _t=!1;function Xt(t,e,n,r){jt(t,0+(r?1:0),3),function(t,e,n,r){Vt(t),r&&(Dt(t,n),Dt(t,~n)),vt.arraySet(t.pending_buf,t.window,e,n,t.pending),t.pending+=n}(t,e,n,!0)}var Zt={_tr_init:function(t){_t||(!function(){var t,e,n,r,i,o=new Array(16);for(n=0,r=0;r<28;r++)for(At[r]=n,t=0;t<1<<mt[r];t++)Ct[n++]=r;for(Ct[n-1]=r,i=0,r=0;r<16;r++)for(Rt[r]=i,t=0;t<1<<bt[r];t++)Ft[i++]=r;for(i>>=7;r<30;r++)for(Rt[r]=i<<7,t=0;t<1<<bt[r]-7;t++)Ft[256+i++]=r;for(e=0;e<=15;e++)o[e]=0;for(t=0;t<=143;)kt[2*t+1]=8,t++,o[8]++;for(;t<=255;)kt[2*t+1]=9,t++,o[9]++;for(;t<=279;)kt[2*t+1]=7,t++,o[7]++;for(;t<=287;)kt[2*t+1]=8,t++,o[8]++;for(Mt(kt,287,o),t=0;t<30;t++)St[2*t+1]=5,St[2*t]=It(t,5);zt=new Bt(kt,mt,257,286,15),Tt=new Bt(St,bt,0,30,15),Ot=new Bt(new Array(0),wt,0,19,7)}(),_t=!0),t.l_desc=new Nt(t.dyn_ltree,zt),t.d_desc=new Nt(t.dyn_dtree,Tt),t.bl_desc=new Nt(t.bl_tree,Ot),t.bi_buf=0,t.bi_valid=0,Ut(t)},_tr_stored_block:Xt,_tr_flush_block:function(t,e,n,r){var i,o,a=0;t.level>0?(2===t.strm.data_type&&(t.strm.data_type=function(t){var e,n=4093624447;for(e=0;e<=31;e++,n>>>=1)if(1&n&&0!==t.dyn_ltree[2*e])return 0;if(0!==t.dyn_ltree[18]||0!==t.dyn_ltree[20]||0!==t.dyn_ltree[26])return 1;for(e=32;e<256;e++)if(0!==t.dyn_ltree[2*e])return 1;return 0}(t)),Lt(t,t.l_desc),Lt(t,t.d_desc),a=function(t){var e;for(Gt(t,t.dyn_ltree,t.l_desc.max_code),Gt(t,t.dyn_dtree,t.d_desc.max_code),Lt(t,t.bl_desc),e=18;e>=3&&0===t.bl_tree[2*xt[e]+1];e--);return t.opt_len+=3*(e+1)+5+5+4,e}(t),i=t.opt_len+3+7>>>3,(o=t.static_len+3+7>>>3)<=i&&(i=o)):i=o=n+5,n+4<=i&&-1!==e?Xt(t,e,n,r):4===t.strategy||o===i?(jt(t,2+(r?1:0),3),Kt(t,kt,St)):(jt(t,4+(r?1:0),3),function(t,e,n,r){var i;for(jt(t,e-257,5),jt(t,n-1,5),jt(t,r-4,4),i=0;i<r;i++)jt(t,t.bl_tree[2*xt[i]+1],3);Ht(t,t.dyn_ltree,e-1),Ht(t,t.dyn_dtree,n-1)}(t,t.l_desc.max_code+1,t.d_desc.max_code+1,a+1),Kt(t,t.dyn_ltree,t.dyn_dtree)),Ut(t),r&&Vt(t)},_tr_tally:function(t,e,n){return t.pending_buf[t.d_buf+2*t.last_lit]=e>>>8&255,t.pending_buf[t.d_buf+2*t.last_lit+1]=255&e,t.pending_buf[t.l_buf+t.last_lit]=255&n,t.last_lit++,0===e?t.dyn_ltree[2*n]++:(t.matches++,e--,t.dyn_ltree[2*(Ct[n]+256+1)]++,t.dyn_dtree[2*Pt(e)]++),t.last_lit===t.lit_bufsize-1},_tr_align:function(t){jt(t,2,3),Et(t,256,kt),function(t){16===t.bi_valid?(Dt(t,t.bi_buf),t.bi_buf=0,t.bi_valid=0):t.bi_valid>=8&&(t.pending_buf[t.pending++]=255&t.bi_buf,t.bi_buf>>=8,t.bi_valid-=8)}(t)}};var Yt=function(t,e,n,r){for(var i=65535&t|0,o=t>>>16&65535|0,a=0;0!==n;){n-=a=n>2e3?2e3:n;do{o=o+(i=i+e[r++]|0)|0}while(--a);i%=65521,o%=65521}return i|o<<16|0};var Jt=function(){for(var t,e=[],n=0;n<256;n++){t=n;for(var r=0;r<8;r++)t=1&t?3988292384^t>>>1:t>>>1;e[n]=t}return e}();var Qt,$t=function(t,e,n,r){var i=Jt,o=r+n;t^=-1;for(var a=r;a<o;a++)t=t>>>8^i[255&(t^e[a])];return-1^t},te={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient memory","-5":"buffer error","-6":"incompatible version"};function ee(t,e){return t.msg=te[e],e}function ne(t){return(t<<1)-(t>4?9:0)}function re(t){for(var e=t.length;--e>=0;)t[e]=0}function ie(t){var e=t.state,n=e.pending;n>t.avail_out&&(n=t.avail_out),0!==n&&(vt.arraySet(t.output,e.pending_buf,e.pending_out,n,t.next_out),t.next_out+=n,e.pending_out+=n,t.total_out+=n,t.avail_out-=n,e.pending-=n,0===e.pending&&(e.pending_out=0))}function oe(t,e){Zt._tr_flush_block(t,t.block_start>=0?t.block_start:-1,t.strstart-t.block_start,e),t.block_start=t.strstart,ie(t.strm)}function ae(t,e){t.pending_buf[t.pending++]=e}function se(t,e){t.pending_buf[t.pending++]=e>>>8&255,t.pending_buf[t.pending++]=255&e}function he(t,e,n,r){var i=t.avail_in;return i>r&&(i=r),0===i?0:(t.avail_in-=i,vt.arraySet(e,t.input,t.next_in,i,n),1===t.state.wrap?t.adler=Yt(t.adler,e,i,n):2===t.state.wrap&&(t.adler=$t(t.adler,e,i,n)),t.next_in+=i,t.total_in+=i,i)}function le(t,e){var n,r,i=t.max_chain_length,o=t.strstart,a=t.prev_length,s=t.nice_match,h=t.strstart>t.w_size-262?t.strstart-(t.w_size-262):0,l=t.window,u=t.w_mask,c=t.prev,d=t.strstart+258,f=l[o+a-1],p=l[o+a];t.prev_length>=t.good_match&&(i>>=2),s>t.lookahead&&(s=t.lookahead);do{if(l[(n=e)+a]===p&&l[n+a-1]===f&&l[n]===l[o]&&l[++n]===l[o+1]){o+=2,n++;do{}while(l[++o]===l[++n]&&l[++o]===l[++n]&&l[++o]===l[++n]&&l[++o]===l[++n]&&l[++o]===l[++n]&&l[++o]===l[++n]&&l[++o]===l[++n]&&l[++o]===l[++n]&&o<d);if(r=258-(d-o),o=d-258,r>a){if(t.match_start=e,a=r,r>=s)break;f=l[o+a-1],p=l[o+a]}}}while((e=c[e&u])>h&&0!=--i);return a<=t.lookahead?a:t.lookahead}function ue(t){var e,n,r,i,o,a=t.w_size;do{if(i=t.window_size-t.lookahead-t.strstart,t.strstart>=a+(a-262)){vt.arraySet(t.window,t.window,a,a,0),t.match_start-=a,t.strstart-=a,t.block_start-=a,e=n=t.hash_size;do{r=t.head[--e],t.head[e]=r>=a?r-a:0}while(--n);e=n=a;do{r=t.prev[--e],t.prev[e]=r>=a?r-a:0}while(--n);i+=a}if(0===t.strm.avail_in)break;if(n=he(t.strm,t.window,t.strstart+t.lookahead,i),t.lookahead+=n,t.lookahead+t.insert>=3)for(o=t.strstart-t.insert,t.ins_h=t.window[o],t.ins_h=(t.ins_h<<t.hash_shift^t.window[o+1])&t.hash_mask;t.insert&&(t.ins_h=(t.ins_h<<t.hash_shift^t.window[o+3-1])&t.hash_mask,t.prev[o&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=o,o++,t.insert--,!(t.lookahead+t.insert<3)););}while(t.lookahead<262&&0!==t.strm.avail_in)}function ce(t,e){for(var n,r;;){if(t.lookahead<262){if(ue(t),t.lookahead<262&&0===e)return 1;if(0===t.lookahead)break}if(n=0,t.lookahead>=3&&(t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+3-1])&t.hash_mask,n=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart),0!==n&&t.strstart-n<=t.w_size-262&&(t.match_length=le(t,n)),t.match_length>=3)if(r=Zt._tr_tally(t,t.strstart-t.match_start,t.match_length-3),t.lookahead-=t.match_length,t.match_length<=t.max_lazy_match&&t.lookahead>=3){t.match_length--;do{t.strstart++,t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+3-1])&t.hash_mask,n=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart}while(0!=--t.match_length);t.strstart++}else t.strstart+=t.match_length,t.match_length=0,t.ins_h=t.window[t.strstart],t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+1])&t.hash_mask;else r=Zt._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++;if(r&&(oe(t,!1),0===t.strm.avail_out))return 1}return t.insert=t.strstart<2?t.strstart:2,4===e?(oe(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(oe(t,!1),0===t.strm.avail_out)?1:2}function de(t,e){for(var n,r,i;;){if(t.lookahead<262){if(ue(t),t.lookahead<262&&0===e)return 1;if(0===t.lookahead)break}if(n=0,t.lookahead>=3&&(t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+3-1])&t.hash_mask,n=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart),t.prev_length=t.match_length,t.prev_match=t.match_start,t.match_length=2,0!==n&&t.prev_length<t.max_lazy_match&&t.strstart-n<=t.w_size-262&&(t.match_length=le(t,n),t.match_length<=5&&(1===t.strategy||3===t.match_length&&t.strstart-t.match_start>4096)&&(t.match_length=2)),t.prev_length>=3&&t.match_length<=t.prev_length){i=t.strstart+t.lookahead-3,r=Zt._tr_tally(t,t.strstart-1-t.prev_match,t.prev_length-3),t.lookahead-=t.prev_length-1,t.prev_length-=2;do{++t.strstart<=i&&(t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+3-1])&t.hash_mask,n=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart)}while(0!=--t.prev_length);if(t.match_available=0,t.match_length=2,t.strstart++,r&&(oe(t,!1),0===t.strm.avail_out))return 1}else if(t.match_available){if((r=Zt._tr_tally(t,0,t.window[t.strstart-1]))&&oe(t,!1),t.strstart++,t.lookahead--,0===t.strm.avail_out)return 1}else t.match_available=1,t.strstart++,t.lookahead--}return t.match_available&&(r=Zt._tr_tally(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<2?t.strstart:2,4===e?(oe(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(oe(t,!1),0===t.strm.avail_out)?1:2}function fe(t,e,n,r,i){this.good_length=t,this.max_lazy=e,this.nice_length=n,this.max_chain=r,this.func=i}function pe(){this.strm=null,this.status=0,this.pending_buf=null,this.pending_buf_size=0,this.pending_out=0,this.pending=0,this.wrap=0,this.gzhead=null,this.gzindex=0,this.method=8,this.last_flush=-1,this.w_size=0,this.w_bits=0,this.w_mask=0,this.window=null,this.window_size=0,this.prev=null,this.head=null,this.ins_h=0,this.hash_size=0,this.hash_bits=0,this.hash_mask=0,this.hash_shift=0,this.block_start=0,this.match_length=0,this.prev_match=0,this.match_available=0,this.strstart=0,this.match_start=0,this.lookahead=0,this.prev_length=0,this.max_chain_length=0,this.max_lazy_match=0,this.level=0,this.strategy=0,this.good_match=0,this.nice_match=0,this.dyn_ltree=new vt.Buf16(1146),this.dyn_dtree=new vt.Buf16(122),this.bl_tree=new vt.Buf16(78),re(this.dyn_ltree),re(this.dyn_dtree),re(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new vt.Buf16(16),this.heap=new vt.Buf16(573),re(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new vt.Buf16(573),re(this.depth),this.l_buf=0,this.lit_bufsize=0,this.last_lit=0,this.d_buf=0,this.opt_len=0,this.static_len=0,this.matches=0,this.insert=0,this.bi_buf=0,this.bi_valid=0}function ge(t){var e;return t&&t.state?(t.total_in=t.total_out=0,t.data_type=2,(e=t.state).pending=0,e.pending_out=0,e.wrap<0&&(e.wrap=-e.wrap),e.status=e.wrap?42:113,t.adler=2===e.wrap?0:1,e.last_flush=0,Zt._tr_init(e),0):ee(t,-2)}function ve(t){var e,n=ge(t);return 0===n&&((e=t.state).window_size=2*e.w_size,re(e.head),e.max_lazy_match=Qt[e.level].max_lazy,e.good_match=Qt[e.level].good_length,e.nice_match=Qt[e.level].nice_length,e.max_chain_length=Qt[e.level].max_chain,e.strstart=0,e.block_start=0,e.lookahead=0,e.insert=0,e.match_length=e.prev_length=2,e.match_available=0,e.ins_h=0),n}function ye(t,e,n,r,i,o){if(!t)return-2;var a=1;if(-1===e&&(e=6),r<0?(a=0,r=-r):r>15&&(a=2,r-=16),i<1||i>9||8!==n||r<8||r>15||e<0||e>9||o<0||o>4)return ee(t,-2);8===r&&(r=9);var s=new pe;return 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0!==z&&(i[d+z]=m-F<<24|64<<16|0),s.bits=k,0};function Ve(t){return(t>>>24&255)+(t>>>8&65280)+((65280&t)<<8)+((255&t)<<24)}function We(){this.mode=0,this.last=!1,this.wrap=0,this.havedict=!1,this.flags=0,this.dmax=0,this.check=0,this.total=0,this.head=null,this.wbits=0,this.wsize=0,this.whave=0,this.wnext=0,this.window=null,this.hold=0,this.bits=0,this.length=0,this.offset=0,this.extra=0,this.lencode=null,this.distcode=null,this.lenbits=0,this.distbits=0,this.ncode=0,this.nlen=0,this.ndist=0,this.have=0,this.next=null,this.lens=new vt.Buf16(320),this.work=new vt.Buf16(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0}function qe(t){var e;return t&&t.state?(e=t.state,t.total_in=t.total_out=e.total=0,t.msg="",e.wrap&&(t.adler=1&e.wrap),e.mode=1,e.last=0,e.havedict=0,e.dmax=32768,e.head=null,e.hold=0,e.bits=0,e.lencode=e.lendyn=new vt.Buf32(852),e.distcode=e.distdyn=new vt.Buf32(592),e.sane=1,e.back=-1,0):-2}function Ke(t){var e;return t&&t.state?((e=t.state).wsize=0,e.whave=0,e.wnext=0,qe(t)):-2}function Le(t,e){var n,r;return t&&t.state?(r=t.state,e<0?(n=0,e=-e):(n=1+(e>>4),e<48&&(e&=15)),e&&(e<8||e>15)?-2:(null!==r.window&&r.wbits!==e&&(r.window=null),r.wrap=n,r.wbits=e,Ke(t))):-2}function Ge(t,e){var n,r;return t?(r=new We,t.state=r,r.window=null,0!==(n=Le(t,e))&&(t.state=null),n):-2}var He,_e,Xe=!0;function Ze(t){if(Xe){var e;for(He=new vt.Buf32(512),_e=new vt.Buf32(32),e=0;e<144;)t.lens[e++]=8;for(;e<256;)t.lens[e++]=9;for(;e<280;)t.lens[e++]=7;for(;e<288;)t.lens[e++]=8;for(Ue(1,t.lens,0,288,He,0,t.work,{bits:9}),e=0;e<32;)t.lens[e++]=5;Ue(2,t.lens,0,32,_e,0,t.work,{bits:5}),Xe=!1}t.lencode=He,t.lenbits=9,t.distcode=_e,t.distbits=5}function Ye(t,e,n,r){var i,o=t.state;return null===o.window&&(o.wsize=1<<o.wbits,o.wnext=0,o.whave=0,o.window=new vt.Buf8(o.wsize)),r>=o.wsize?(vt.arraySet(o.window,e,n-o.wsize,o.wsize,0),o.wnext=0,o.whave=o.wsize):((i=o.wsize-o.wnext)>r&&(i=r),vt.arraySet(o.window,e,n-r,i,o.wnext),(r-=i)?(vt.arraySet(o.window,e,n-r,r,0),o.wnext=r,o.whave=o.wsize):(o.wnext+=i,o.wnext===o.wsize&&(o.wnext=0),o.whave<o.wsize&&(o.whave+=i))),0}var Je={inflateReset:Ke,inflateReset2:Le,inflateResetKeep:qe,inflateInit:function(t){return Ge(t,15)},inflateInit2:Ge,inflate:function(t,e){var n,r,i,o,a,s,h,l,u,c,d,f,p,g,v,y,m,b,w,x,k,S,F,C,A=0,z=new vt.Buf8(4),T=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];if(!t||!t.state||!t.output||!t.input&&0!==t.avail_in)return-2;12===(n=t.state).mode&&(n.mode=13),a=t.next_out,i=t.output,h=t.avail_out,o=t.next_in,r=t.input,s=t.avail_in,l=n.hold,u=n.bits,c=s,d=h,S=0;t:for(;;)switch(n.mode){case 1:if(0===n.wrap){n.mode=13;break}for(;u<16;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(2&n.wrap&&35615===l){n.check=0,z[0]=255&l,z[1]=l>>>8&255,n.check=$t(n.check,z,2,0),l=0,u=0,n.mode=2;break}if(n.flags=0,n.head&&(n.head.done=!1),!(1&n.wrap)||(((255&l)<<8)+(l>>8))%31){t.msg="incorrect header check",n.mode=30;break}if(8!=(15&l)){t.msg="unknown compression method",n.mode=30;break}if(u-=4,k=8+(15&(l>>>=4)),0===n.wbits)n.wbits=k;else if(k>n.wbits){t.msg="invalid window size",n.mode=30;break}n.dmax=1<<k,t.adler=n.check=1,n.mode=512&l?10:12,l=0,u=0;break;case 2:for(;u<16;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(n.flags=l,8!=(255&n.flags)){t.msg="unknown compression method",n.mode=30;break}if(57344&n.flags){t.msg="unknown header flags set",n.mode=30;break}n.head&&(n.head.text=l>>8&1),512&n.flags&&(z[0]=255&l,z[1]=l>>>8&255,n.check=$t(n.check,z,2,0)),l=0,u=0,n.mode=3;case 3:for(;u<32;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}n.head&&(n.head.time=l),512&n.flags&&(z[0]=255&l,z[1]=l>>>8&255,z[2]=l>>>16&255,z[3]=l>>>24&255,n.check=$t(n.check,z,4,0)),l=0,u=0,n.mode=4;case 4:for(;u<16;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}n.head&&(n.head.xflags=255&l,n.head.os=l>>8),512&n.flags&&(z[0]=255&l,z[1]=l>>>8&255,n.check=$t(n.check,z,2,0)),l=0,u=0,n.mode=5;case 5:if(1024&n.flags){for(;u<16;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}n.length=l,n.head&&(n.head.extra_len=l),512&n.flags&&(z[0]=255&l,z[1]=l>>>8&255,n.check=$t(n.check,z,2,0)),l=0,u=0}else n.head&&(n.head.extra=null);n.mode=6;case 6:if(1024&n.flags&&((f=n.length)>s&&(f=s),f&&(n.head&&(k=n.head.extra_len-n.length,n.head.extra||(n.head.extra=new Array(n.head.extra_len)),vt.arraySet(n.head.extra,r,o,f,k)),512&n.flags&&(n.check=$t(n.check,r,f,o)),s-=f,o+=f,n.length-=f),n.length))break t;n.length=0,n.mode=7;case 7:if(2048&n.flags){if(0===s)break t;f=0;do{k=r[o+f++],n.head&&k&&n.length<65536&&(n.head.name+=String.fromCharCode(k))}while(k&&f<s);if(512&n.flags&&(n.check=$t(n.check,r,f,o)),s-=f,o+=f,k)break t}else n.head&&(n.head.name=null);n.length=0,n.mode=8;case 8:if(4096&n.flags){if(0===s)break t;f=0;do{k=r[o+f++],n.head&&k&&n.length<65536&&(n.head.comment+=String.fromCharCode(k))}while(k&&f<s);if(512&n.flags&&(n.check=$t(n.check,r,f,o)),s-=f,o+=f,k)break t}else n.head&&(n.head.comment=null);n.mode=9;case 9:if(512&n.flags){for(;u<16;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(l!==(65535&n.check)){t.msg="header crc mismatch",n.mode=30;break}l=0,u=0}n.head&&(n.head.hcrc=n.flags>>9&1,n.head.done=!0),t.adler=n.check=0,n.mode=12;break;case 10:for(;u<32;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}t.adler=n.check=Ve(l),l=0,u=0,n.mode=11;case 11:if(0===n.havedict)return t.next_out=a,t.avail_out=h,t.next_in=o,t.avail_in=s,n.hold=l,n.bits=u,2;t.adler=n.check=1,n.mode=12;case 12:if(5===e||6===e)break t;case 13:if(n.last){l>>>=7&u,u-=7&u,n.mode=27;break}for(;u<3;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}switch(n.last=1&l,u-=1,3&(l>>>=1)){case 0:n.mode=14;break;case 1:if(Ze(n),n.mode=20,6===e){l>>>=2,u-=2;break t}break;case 2:n.mode=17;break;case 3:t.msg="invalid block type",n.mode=30}l>>>=2,u-=2;break;case 14:for(l>>>=7&u,u-=7&u;u<32;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if((65535&l)!=(l>>>16^65535)){t.msg="invalid stored block lengths",n.mode=30;break}if(n.length=65535&l,l=0,u=0,n.mode=15,6===e)break t;case 15:n.mode=16;case 16:if(f=n.length){if(f>s&&(f=s),f>h&&(f=h),0===f)break t;vt.arraySet(i,r,o,f,a),s-=f,o+=f,h-=f,a+=f,n.length-=f;break}n.mode=12;break;case 17:for(;u<14;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(n.nlen=257+(31&l),l>>>=5,u-=5,n.ndist=1+(31&l),l>>>=5,u-=5,n.ncode=4+(15&l),l>>>=4,u-=4,n.nlen>286||n.ndist>30){t.msg="too many length or distance symbols",n.mode=30;break}n.have=0,n.mode=18;case 18:for(;n.have<n.ncode;){for(;u<3;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}n.lens[T[n.have++]]=7&l,l>>>=3,u-=3}for(;n.have<19;)n.lens[T[n.have++]]=0;if(n.lencode=n.lendyn,n.lenbits=7,F={bits:n.lenbits},S=Ue(0,n.lens,0,19,n.lencode,0,n.work,F),n.lenbits=F.bits,S){t.msg="invalid code lengths set",n.mode=30;break}n.have=0,n.mode=19;case 19:for(;n.have<n.nlen+n.ndist;){for(;y=(A=n.lencode[l&(1<<n.lenbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(m<16)l>>>=v,u-=v,n.lens[n.have++]=m;else{if(16===m){for(C=v+2;u<C;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(l>>>=v,u-=v,0===n.have){t.msg="invalid bit length repeat",n.mode=30;break}k=n.lens[n.have-1],f=3+(3&l),l>>>=2,u-=2}else if(17===m){for(C=v+3;u<C;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}u-=v,k=0,f=3+(7&(l>>>=v)),l>>>=3,u-=3}else{for(C=v+7;u<C;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}u-=v,k=0,f=11+(127&(l>>>=v)),l>>>=7,u-=7}if(n.have+f>n.nlen+n.ndist){t.msg="invalid bit length repeat",n.mode=30;break}for(;f--;)n.lens[n.have++]=k}}if(30===n.mode)break;if(0===n.lens[256]){t.msg="invalid code -- missing end-of-block",n.mode=30;break}if(n.lenbits=9,F={bits:n.lenbits},S=Ue(1,n.lens,0,n.nlen,n.lencode,0,n.work,F),n.lenbits=F.bits,S){t.msg="invalid literal/lengths set",n.mode=30;break}if(n.distbits=6,n.distcode=n.distdyn,F={bits:n.distbits},S=Ue(2,n.lens,n.nlen,n.ndist,n.distcode,0,n.work,F),n.distbits=F.bits,S){t.msg="invalid distances set",n.mode=30;break}if(n.mode=20,6===e)break t;case 20:n.mode=21;case 21:if(s>=6&&h>=258){t.next_out=a,t.avail_out=h,t.next_in=o,t.avail_in=s,n.hold=l,n.bits=u,De(t,d),a=t.next_out,i=t.output,h=t.avail_out,o=t.next_in,r=t.input,s=t.avail_in,l=n.hold,u=n.bits,12===n.mode&&(n.back=-1);break}for(n.back=0;y=(A=n.lencode[l&(1<<n.lenbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(y&&0==(240&y)){for(b=v,w=y,x=m;y=(A=n.lencode[x+((l&(1<<b+w)-1)>>b)])>>>16&255,m=65535&A,!(b+(v=A>>>24)<=u);){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}l>>>=b,u-=b,n.back+=b}if(l>>>=v,u-=v,n.back+=v,n.length=m,0===y){n.mode=26;break}if(32&y){n.back=-1,n.mode=12;break}if(64&y){t.msg="invalid literal/length code",n.mode=30;break}n.extra=15&y,n.mode=22;case 22:if(n.extra){for(C=n.extra;u<C;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}n.length+=l&(1<<n.extra)-1,l>>>=n.extra,u-=n.extra,n.back+=n.extra}n.was=n.length,n.mode=23;case 23:for(;y=(A=n.distcode[l&(1<<n.distbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(0==(240&y)){for(b=v,w=y,x=m;y=(A=n.distcode[x+((l&(1<<b+w)-1)>>b)])>>>16&255,m=65535&A,!(b+(v=A>>>24)<=u);){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}l>>>=b,u-=b,n.back+=b}if(l>>>=v,u-=v,n.back+=v,64&y){t.msg="invalid distance code",n.mode=30;break}n.offset=m,n.extra=15&y,n.mode=24;case 24:if(n.extra){for(C=n.extra;u<C;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}n.offset+=l&(1<<n.extra)-1,l>>>=n.extra,u-=n.extra,n.back+=n.extra}if(n.offset>n.dmax){t.msg="invalid distance too far back",n.mode=30;break}n.mode=25;case 25:if(0===h)break t;if(f=d-h,n.offset>f){if((f=n.offset-f)>n.whave&&n.sane){t.msg="invalid distance too far back",n.mode=30;break}f>n.wnext?(f-=n.wnext,p=n.wsize-f):p=n.wnext-f,f>n.length&&(f=n.length),g=n.window}else g=i,p=a-n.offset,f=n.length;f>h&&(f=h),h-=f,n.length-=f;do{i[a++]=g[p++]}while(--f);0===n.length&&(n.mode=21);break;case 26:if(0===h)break t;i[a++]=n.length,h--,n.mode=21;break;case 27:if(n.wrap){for(;u<32;){if(0===s)break t;s--,l|=r[o++]<<u,u+=8}if(d-=h,t.total_out+=d,n.total+=d,d&&(t.adler=n.check=n.flags?$t(n.check,i,d,a-d):Yt(n.check,i,d,a-d)),d=h,(n.flags?l:Ve(l))!==n.check){t.msg="incorrect data check",n.mode=30;break}l=0,u=0}n.mode=28;case 28:if(n.wrap&&n.flags){for(;u<32;){if(0===s)break t;s--,l+=r[o++]<<u,u+=8}if(l!==(4294967295&n.total)){t.msg="incorrect length check",n.mode=30;break}l=0,u=0}n.mode=29;case 29:S=1;break t;case 30:S=-3;break t;case 31:return-4;case 32:default:return-2}return t.next_out=a,t.avail_out=h,t.next_in=o,t.avail_in=s,n.hold=l,n.bits=u,(n.wsize||d!==t.avail_out&&n.mode<30&&(n.mode<27||4!==e))&&Ye(t,t.output,t.next_out,d-t.avail_out),c-=t.avail_in,d-=t.ava