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

Create and modify PDF files with JavaScript

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/*! *****************************************************************************
    Copyright (c) Microsoft Corporation. All rights reserved.
    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
    KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
    WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
    MERCHANTABLITY OR NON-INFRINGEMENT.

    See the Apache Version 2.0 License for specific language governing permissions
    and limitations under the License.
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1;return 0}(t)),qt(t,t.l_desc),qt(t,t.d_desc),a=function(t){var e;for(Lt(t,t.dyn_ltree,t.l_desc.max_code),Lt(t,t.dyn_dtree,t.d_desc.max_code),qt(t,t.bl_desc),e=18;e>=3&&0===t.bl_tree[2*bt[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?Ht(t,e,n,r):4===t.strategy||o===i?(Bt(t,2+(r?1:0),3),Wt(t,wt,xt)):(Bt(t,4+(r?1:0),3),function(t,e,n,r){var i;for(Bt(t,e-257,5),Bt(t,n-1,5),Bt(t,r-4,4),i=0;i<r;i++)Bt(t,t.bl_tree[2*bt[i]+1],3);Kt(t,t.dyn_ltree,e-1),Kt(t,t.dyn_dtree,n-1)}(t,t.l_desc.max_code+1,t.d_desc.max_code+1,a+1),Wt(t,t.dyn_ltree,t.dyn_dtree)),Mt(t),r&&It(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*(Ft[n]+256+1)]++,t.dyn_dtree[2*Ot(e)]++),t.last_lit===t.lit_bufsize-1},_tr_align:function(t){Bt(t,2,3),Nt(t,256,wt),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 Xt=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 Zt=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 Yt,Jt=function(t,e,n,r){var i=Zt,o=r+n;t^=-1;for(var a=r;a<o;a++)t=t>>>8^i[255&(t^e[a])];return-1^t},Qt={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 $t(t,e){return t.msg=Qt[e],e}function te(t){return(t<<1)-(t>4?9:0)}function ee(t){for(var e=t.length;--e>=0;)t[e]=0}function ne(t){var e=t.state,n=e.pending;n>t.avail_out&&(n=t.avail_out),0!==n&&(pt.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 re(t,e){_t._tr_flush_block(t,t.block_start>=0?t.block_start:-1,t.strstart-t.block_start,e),t.block_start=t.strstart,ne(t.strm)}function ie(t,e){t.pending_buf[t.pending++]=e}function oe(t,e){t.pending_buf[t.pending++]=e>>>8&255,t.pending_buf[t.pending++]=255&e}function ae(t,e,n,r){var i=t.avail_in;return i>r&&(i=r),0===i?0:(t.avail_in-=i,pt.arraySet(e,t.input,t.next_in,i,n),1===t.state.wrap?t.adler=Xt(t.adler,e,i,n):2===t.state.wrap&&(t.adler=Jt(t.adler,e,i,n)),t.next_in+=i,t.total_in+=i,i)}function se(t,e){var n,r,i=t.max_chain_length,o=t.strstart,a=t.prev_length,s=t.nice_match,l=t.strstart>t.w_size-262?t.strstart-(t.w_size-262):0,h=t.window,u=t.w_mask,c=t.prev,d=t.strstart+258,f=h[o+a-1],p=h[o+a];t.prev_length>=t.good_match&&(i>>=2),s>t.lookahead&&(s=t.lookahead);do{if(h[(n=e)+a]===p&&h[n+a-1]===f&&h[n]===h[o]&&h[++n]===h[o+1]){o+=2,n++;do{}while(h[++o]===h[++n]&&h[++o]===h[++n]&&h[++o]===h[++n]&&h[++o]===h[++n]&&h[++o]===h[++n]&&h[++o]===h[++n]&&h[++o]===h[++n]&&h[++o]===h[++n]&&o<d);if(r=258-(d-o),o=d-258,r>a){if(t.match_start=e,a=r,r>=s)break;f=h[o+a-1],p=h[o+a]}}}while((e=c[e&u])>l&&0!=--i);return a<=t.lookahead?a:t.lookahead}function le(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)){pt.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=ae(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 he(t,e){for(var n,r;;){if(t.lookahead<262){if(le(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=se(t,n)),t.match_length>=3)if(r=_t._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=_t._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++;if(r&&(re(t,!1),0===t.strm.avail_out))return 1}return t.insert=t.strstart<2?t.strstart:2,4===e?(re(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(re(t,!1),0===t.strm.avail_out)?1:2}function ue(t,e){for(var n,r,i;;){if(t.lookahead<262){if(le(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=se(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=_t._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&&(re(t,!1),0===t.strm.avail_out))return 1}else if(t.match_available){if((r=_t._tr_tally(t,0,t.window[t.strstart-1]))&&re(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=_t._tr_tally(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<2?t.strstart:2,4===e?(re(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(re(t,!1),0===t.strm.avail_out)?1:2}function ce(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 de(){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 pt.Buf16(1146),this.dyn_dtree=new pt.Buf16(122),this.bl_tree=new pt.Buf16(78),ee(this.dyn_ltree),ee(this.dyn_dtree),ee(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new pt.Buf16(16),this.heap=new pt.Buf16(573),ee(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new pt.Buf16(573),ee(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 fe(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,_t._tr_init(e),0):$t(t,-2)}function pe(t){var e,n=fe(t);return 0===n&&((e=t.state).window_size=2*e.w_size,ee(e.head),e.max_lazy_match=Yt[e.level].max_lazy,e.good_match=Yt[e.level].good_length,e.nice_match=Yt[e.level].nice_length,e.max_chain_length=Yt[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 ge(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 $t(t,-2);8===r&&(r=9);var s=new de;return t.state=s,s.strm=t,s.wrap=a,s.gzhead=null,s.w_bits=r,s.w_size=1<<s.w_bits,s.w_mask=s.w_size-1,s.hash_bits=i+7,s.hash_size=1<<s.hash_bits,s.hash_mask=s.hash_size-1,s.hash_shift=~~((s.hash_bits+3-1)/3),s.window=new pt.Buf8(2*s.w_size),s.head=new pt.Buf16(s.hash_size),s.prev=new pt.Buf16(s.w_size),s.lit_bufsize=1<<i+6,s.pending_buf_size=4*s.lit_bufsize,s.pending_buf=new pt.Buf8(s.pending_buf_size),s.d_buf=1*s.lit_bufsize,s.l_buf=3*s.lit_bufsize,s.level=e,s.strategy=o,s.method=n,pe(t)}Yt=[new ce(0,0,0,0,(function(t,e){var n=65535;for(n>t.pending_buf_size-5&&(n=t.pending_buf_size-5);;){if(t.lookahead<=1){if(le(t),0===t.lookahead&&0===e)return 1;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;var r=t.block_start+n;if((0===t.strstart||t.strstart>=r)&&(t.lookahead=t.strstart-r,t.strstart=r,re(t,!1),0===t.strm.avail_out))return 1;if(t.strstart-t.block_start>=t.w_size-262&&(re(t,!1),0===t.strm.avail_out))return 1}return t.insert=0,4===e?(re(t,!0),0===t.strm.avail_out?3:4):(t.strstart>t.block_start&&(re(t,!1),t.strm.avail_out),1)})),new ce(4,4,8,4,he),new ce(4,5,16,8,he),new ce(4,6,32,32,he),new ce(4,4,16,16,ue),new ce(8,16,32,32,ue),new ce(8,16,128,128,ue),new ce(8,32,128,256,ue),new ce(32,128,258,1024,ue),new ce(32,258,258,4096,ue)];var ve={deflateInit:function(t,e){return ge(t,e,8,15,8,0)},deflateInit2:ge,deflateReset:pe,deflateResetKeep:fe,deflateSetHeader:function(t,e){return t&&t.state?2!==t.state.wrap?-2:(t.state.gzhead=e,0):-2},deflate:function(t,e){var n,r,i,o;if(!t||!t.state||e>5||e<0)return t?$t(t,-2):-2;if(r=t.state,!t.output||!t.input&&0!==t.avail_in||666===r.status&&4!==e)return $t(t,0===t.avail_out?-5:-2);if(r.strm=t,n=r.last_flush,r.last_flush=e,42===r.status)if(2===r.wrap)t.adler=0,ie(r,31),ie(r,139),ie(r,8),r.gzhead?(ie(r,(r.gzhead.text?1:0)+(r.gzhead.hcrc?2:0)+(r.gzhead.extra?4:0)+(r.gzhead.name?8:0)+(r.gzhead.comment?16:0)),ie(r,255&r.gzhead.time),ie(r,r.gzhead.time>>8&255),ie(r,r.gzhead.time>>16&255),ie(r,r.gzhead.time>>24&255),ie(r,9===r.level?2:r.strategy>=2||r.level<2?4:0),ie(r,255&r.gzhead.os),r.gzhead.extra&&r.gzhead.extra.length&&(ie(r,255&r.gzhead.extra.length),ie(r,r.gzhead.extra.length>>8&255)),r.gzhead.hcrc&&(t.adler=Jt(t.adler,r.pending_buf,r.pending,0)),r.gzindex=0,r.status=69):(ie(r,0),ie(r,0),ie(r,0),ie(r,0),ie(r,0),ie(r,9===r.level?2:r.strategy>=2||r.level<2?4:0),ie(r,3),r.status=113);else{var a=8+(r.w_bits-8<<4)<<8;a|=(r.strategy>=2||r.level<2?0:r.level<6?1:6===r.level?2:3)<<6,0!==r.strstart&&(a|=32),a+=31-a%31,r.status=113,oe(r,a),0!==r.strstart&&(oe(r,t.adler>>>16),oe(r,65535&t.adler)),t.adler=1}if(69===r.status)if(r.gzhead.extra){for(i=r.pending;r.gzindex<(65535&r.gzhead.extra.length)&&(r.pending!==r.pending_buf_size||(r.gzhead.hcrc&&r.pending>i&&(t.adler=Jt(t.adler,r.pending_buf,r.pending-i,i)),ne(t),i=r.pending,r.pending!==r.pending_buf_size));)ie(r,255&r.gzhead.extra[r.gzindex]),r.gzindex++;r.gzhead.hcrc&&r.pending>i&&(t.adler=Jt(t.adler,r.pending_buf,r.pending-i,i)),r.gzindex===r.gzhead.extra.length&&(r.gzindex=0,r.status=73)}else 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this.onEnd(n),this.ended=!0,!1;0!==i.avail_out&&(0!==i.avail_in||4!==r&&2!==r)||("string"===this.options.to?this.onData(Fe(pt.shrinkBuf(i.output,i.next_out))):this.onData(pt.shrinkBuf(i.output,i.next_out)))}while((i.avail_in>0||0===i.avail_out)&&1!==n);return 4===r?(n=ve.deflateEnd(this.strm),this.onEnd(n),this.ended=!0,0===n):2!==r||(this.onEnd(0),i.avail_out=0,!0)},ze.prototype.onData=function(t){this.chunks.push(t)},ze.prototype.onEnd=function(t){0===t&&("string"===this.options.to?this.result=this.chunks.join(""):this.result=pt.flattenChunks(this.chunks)),this.chunks=[],this.err=t,this.msg=this.strm.msg};var Oe={Deflate:ze,deflate:Re,deflateRaw:function(t,e){return(e=e||{}).raw=!0,Re(t,e)},gzip:function(t,e){return(e=e||{}).gzip=!0,Re(t,e)}},De=function(t,e){var n,r,i,o,a,s,l,h,u,c,d,f,p,g,v,y,m,b,w,x,k,F,S,C,A;n=t.state,r=t.next_in,C=t.input,i=r+(t.avail_in-5),o=t.next_out,A=t.output,a=o-(e-t.avail_out),s=o+(t.avail_out-257),l=n.dmax,h=n.wsize,u=n.whave,c=n.wnext,d=n.window,f=n.hold,p=n.bits,g=n.lencode,v=n.distcode,y=(1<<n.lenbits)-1,m=(1<<n.distbits)-1;t:do{p<15&&(f+=C[r++]<<p,p+=8,f+=C[r++]<<p,p+=8),b=g[f&y];e:for(;;){if(f>>>=w=b>>>24,p-=w,0===(w=b>>>16&255))A[o++]=65535&b;else{if(!(16&w)){if(0==(64&w)){b=g[(65535&b)+(f&(1<<w)-1)];continue e}if(32&w){n.mode=12;break t}t.msg="invalid literal/length code",n.mode=30;break t}x=65535&b,(w&=15)&&(p<w&&(f+=C[r++]<<p,p+=8),x+=f&(1<<w)-1,f>>>=w,p-=w),p<15&&(f+=C[r++]<<p,p+=8,f+=C[r++]<<p,p+=8),b=v[f&m];n:for(;;){if(f>>>=w=b>>>24,p-=w,!(16&(w=b>>>16&255))){if(0==(64&w)){b=v[(65535&b)+(f&(1<<w)-1)];continue n}t.msg="invalid distance code",n.mode=30;break t}if(k=65535&b,p<(w&=15)&&(f+=C[r++]<<p,(p+=8)<w&&(f+=C[r++]<<p,p+=8)),(k+=f&(1<<w)-1)>l){t.msg="invalid distance too far back",n.mode=30;break 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0!==T&&(i[d+T]=m-S<<24|64<<16|0),s.bits=k,0};function Ie(t){return(t>>>24&255)+(t>>>8&65280)+((65280&t)<<8)+((255&t)<<24)}function Ue(){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 pt.Buf16(320),this.work=new pt.Buf16(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0}function Ve(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 pt.Buf32(852),e.distcode=e.distdyn=new pt.Buf32(592),e.sane=1,e.back=-1,0):-2}function We(t){var e;return t&&t.state?((e=t.state).wsize=0,e.whave=0,e.wnext=0,Ve(t)):-2}function qe(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,We(t))):-2}function Le(t,e){var n,r;return t?(r=new Ue,t.state=r,r.window=null,0!==(n=qe(t,e))&&(t.state=null),n):-2}var Ke,Ge,He=!0;function _e(t){if(He){var e;for(Ke=new pt.Buf32(512),Ge=new pt.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(Me(1,t.lens,0,288,Ke,0,t.work,{bits:9}),e=0;e<32;)t.lens[e++]=5;Me(2,t.lens,0,32,Ge,0,t.work,{bits:5}),He=!1}t.lencode=Ke,t.lenbits=9,t.distcode=Ge,t.distbits=5}function Xe(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 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t;s--,h+=r[o++]<<u,u+=8}if(2&n.wrap&&35615===h){n.check=0,T[0]=255&h,T[1]=h>>>8&255,n.check=Jt(n.check,T,2,0),h=0,u=0,n.mode=2;break}if(n.flags=0,n.head&&(n.head.done=!1),!(1&n.wrap)||(((255&h)<<8)+(h>>8))%31){t.msg="incorrect header check",n.mode=30;break}if(8!=(15&h)){t.msg="unknown compression method",n.mode=30;break}if(u-=4,k=8+(15&(h>>>=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&h?10:12,h=0,u=0;break;case 2:for(;u<16;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(n.flags=h,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=h>>8&1),512&n.flags&&(T[0]=255&h,T[1]=h>>>8&255,n.check=Jt(n.check,T,2,0)),h=0,u=0,n.mode=3;case 3:for(;u<32;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}n.head&&(n.head.time=h),512&n.flags&&(T[0]=255&h,T[1]=h>>>8&255,T[2]=h>>>16&255,T[3]=h>>>24&255,n.check=Jt(n.check,T,4,0)),h=0,u=0,n.mode=4;case 4:for(;u<16;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}n.head&&(n.head.xflags=255&h,n.head.os=h>>8),512&n.flags&&(T[0]=255&h,T[1]=h>>>8&255,n.check=Jt(n.check,T,2,0)),h=0,u=0,n.mode=5;case 5:if(1024&n.flags){for(;u<16;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}n.length=h,n.head&&(n.head.extra_len=h),512&n.flags&&(T[0]=255&h,T[1]=h>>>8&255,n.check=Jt(n.check,T,2,0)),h=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)),pt.arraySet(n.head.extra,r,o,f,k)),512&n.flags&&(n.check=Jt(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=Jt(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=Jt(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--,h+=r[o++]<<u,u+=8}if(h!==(65535&n.check)){t.msg="header crc mismatch",n.mode=30;break}h=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--,h+=r[o++]<<u,u+=8}t.adler=n.check=Ie(h),h=0,u=0,n.mode=11;case 11:if(0===n.havedict)return t.next_out=a,t.avail_out=l,t.next_in=o,t.avail_in=s,n.hold=h,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){h>>>=7&u,u-=7&u,n.mode=27;break}for(;u<3;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}switch(n.last=1&h,u-=1,3&(h>>>=1)){case 0:n.mode=14;break;case 1:if(_e(n),n.mode=20,6===e){h>>>=2,u-=2;break t}break;case 2:n.mode=17;break;case 3:t.msg="invalid block type",n.mode=30}h>>>=2,u-=2;break;case 14:for(h>>>=7&u,u-=7&u;u<32;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if((65535&h)!=(h>>>16^65535)){t.msg="invalid stored block lengths",n.mode=30;break}if(n.length=65535&h,h=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>l&&(f=l),0===f)break t;pt.arraySet(i,r,o,f,a),s-=f,o+=f,l-=f,a+=f,n.length-=f;break}n.mode=12;break;case 17:for(;u<14;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(n.nlen=257+(31&h),h>>>=5,u-=5,n.ndist=1+(31&h),h>>>=5,u-=5,n.ncode=4+(15&h),h>>>=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--,h+=r[o++]<<u,u+=8}n.lens[P[n.have++]]=7&h,h>>>=3,u-=3}for(;n.have<19;)n.lens[P[n.have++]]=0;if(n.lencode=n.lendyn,n.lenbits=7,S={bits:n.lenbits},F=Me(0,n.lens,0,19,n.lencode,0,n.work,S),n.lenbits=S.bits,F){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[h&(1<<n.lenbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(m<16)h>>>=v,u-=v,n.lens[n.have++]=m;else{if(16===m){for(C=v+2;u<C;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(h>>>=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&h),h>>>=2,u-=2}else if(17===m){for(C=v+3;u<C;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}u-=v,k=0,f=3+(7&(h>>>=v)),h>>>=3,u-=3}else{for(C=v+7;u<C;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}u-=v,k=0,f=11+(127&(h>>>=v)),h>>>=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,S={bits:n.lenbits},F=Me(1,n.lens,0,n.nlen,n.lencode,0,n.work,S),n.lenbits=S.bits,F){t.msg="invalid literal/lengths set",n.mode=30;break}if(n.distbits=6,n.distcode=n.distdyn,S={bits:n.distbits},F=Me(2,n.lens,n.nlen,n.ndist,n.distcode,0,n.work,S),n.distbits=S.bits,F){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&&l>=258){t.next_out=a,t.avail_out=l,t.next_in=o,t.avail_in=s,n.hold=h,n.bits=u,De(t,d),a=t.next_out,i=t.output,l=t.avail_out,o=t.next_in,r=t.input,s=t.avail_in,h=n.hold,u=n.bits,12===n.mode&&(n.back=-1);break}for(n.back=0;y=(A=n.lencode[h&(1<<n.lenbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(y&&0==(240&y)){for(b=v,w=y,x=m;y=(A=n.lencode[x+((h&(1<<b+w)-1)>>b)])>>>16&255,m=65535&A,!(b+(v=A>>>24)<=u);){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}h>>>=b,u-=b,n.back+=b}if(h>>>=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--,h+=r[o++]<<u,u+=8}n.length+=h&(1<<n.extra)-1,h>>>=n.extra,u-=n.extra,n.back+=n.extra}n.was=n.length,n.mode=23;case 23:for(;y=(A=n.distcode[h&(1<<n.distbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(0==(240&y)){for(b=v,w=y,x=m;y=(A=n.distcode[x+((h&(1<<b+w)-1)>>b)])>>>16&255,m=65535&A,!(b+(v=A>>>24)<=u);){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}h>>>=b,u-=b,n.back+=b}if(h>>>=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--,h+=r[o++]<<u,u+=8}n.offset+=h&(1<<n.extra)-1,h>>>=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===l)break t;if(f=d-l,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>l&&(f=l),l-=f,n.length-=f;do{i[a++]=g[p++]}while(--f);0===n.length&&(n.mode=21);break;case 26:if(0===l)break t;i[a++]=n.length,l--,n.mode=21;break;case 27:if(n.wrap){for(;u<32;){if(0===s)break t;s--,h|=r[o++]<<u,u+=8}if(d-=l,t.total_out+=d,n.total+=d,d&&(t.adler=n.check=n.flags?Jt(n.check,i,d,a-d):Xt(n.check,i,d,a-d)),d=l,(n.flags?h:Ie(h))!==n.check){t.msg="incorrect data check",n.mode=30;break}h=0,u=0}n.mode=28;case 28:if(n.wrap&&n.flags){for(;u<32;){if(0===s)break t;s--,h+=r[o++]<<u,u+=8}if(h!==(4294967295&n.total)){t.msg="incorrect length check",n.mode=30;break}h=0,u=0}n.mode=29;case 29:F=1;break t;case 30:F=-3;break t;case 31:return-4;case 32:default:return-2}return t.next_out=a,t.avail_out=l,t.next_in=o,t.avail_in=s,n.hold=h,n.bits=u,(n.wsize||d!==t.avail_out&&n.mode<30&&(n.mode<27||4!==e))&&Xe(t,t.output,t.next_out,d-t.avail_out),c-=t.avail_in,d-=t.avail_out,t.total_in+=c,t.total_out+=d,n.total+=d,n.wrap&&d&&(t.adler=n.check=n.flags?Jt(n.check,i,d,t.next_out-d):Xt(n.check,i,d,t.next_out-d)),t.data_type=n.bits+(n.last?64:0)+(12===n.mode?128:0)+(20===n.mode||15===n.mode?256:0),(0===c&&0===d||4===e)&&0===F&&(F=-5),F},inflateEnd:function(t){if(!t||!t.state)return-2;var e=t.state;return e.window&&(e.wi