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

Library for creating and modifying PDF files in JavaScript

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r,n,i,o,a,s,u=t.dyn_tree,c=t.max_code,f=t.stat_desc.static_tree,l=t.stat_desc.has_stree,h=t.stat_desc.extra_bits,p=t.stat_desc.extra_base,d=t.stat_desc.max_length,g=0;for(o=0;o<=Pn;o++)e.bl_count[o]=0;for(u[2*e.heap[e.heap_max]+1]=0,r=e.heap_max+1;r<xn;r++)(o=u[2*u[2*(n=e.heap[r])+1]+1]+1)>d&&(o=d,g++),u[2*n+1]=o,n>c||(e.bl_count[o]++,a=0,n>=p&&(a=h[n-p]),s=u[2*n],e.opt_len+=s*(o+a),l&&(e.static_len+=s*(f[2*n+1]+a)));if(0!==g){do{for(o=d-1;0===e.bl_count[o];)o--;e.bl_count[o]--,e.bl_count[o+1]+=2,e.bl_count[d]--,g-=2}while(g>0);for(o=d;0!==o;o--)for(n=e.bl_count[o];0!==n;)(i=e.heap[--r])>c||(u[2*i+1]!==o&&(e.opt_len+=(o-u[2*i+1])*u[2*i],u[2*i+1]=o),n--)}}(e,t),Kn(o,c,e.bl_count)}function ni(e,t,r){var n,i,o=-1,a=t[1],s=0,u=7,c=4;for(0===a&&(u=138,c=3),t[2*(r+1)+1]=65535,n=0;n<=r;n++)i=a,a=t[2*(n+1)+1],++s<u&&i===a||(s<c?e.bl_tree[2*i]+=s:0!==i?(i!==o&&e.bl_tree[2*i]++,e.bl_tree[2*Cn]++):s<=10?e.bl_tree[2*In]++:e.bl_tree[2*_n]++,s=0,o=i,0===a?(u=138,c=3):i===a?(u=6,c=3):(u=7,c=4))}function ii(e,t,r){var n,i,o=-1,a=t[1],s=0,u=7,c=4;for(0===a&&(u=138,c=3),n=0;n<=r;n++)if(i=a,a=t[2*(n+1)+1],!(++s<u&&i===a)){if(s<c)do{Xn(e,i,e.bl_tree)}while(0!=--s);else 0!==i?(i!==o&&(Xn(e,i,e.bl_tree),s--),Xn(e,Cn,e.bl_tree),Yn(e,s-3,2)):s<=10?(Xn(e,In,e.bl_tree),Yn(e,s-3,3)):(Xn(e,_n,e.bl_tree),Yn(e,s-11,7));s=0,o=i,0===a?(u=138,c=3):i===a?(u=6,c=3):(u=7,c=4)}}pn(Gn);var oi=!1;function ai(e,t,r,n){Yn(e,(dn<<1)+(n?1:0),3),function(e,t,r,n){Qn(e),n&&(Hn(e,r),Hn(e,~r)),un.arraySet(e.pending_buf,e.window,t,r,e.pending),e.pending+=r}(e,t,r,!0)}var si={_tr_init:function(e){oi||(function(){var e,t,r,n,i,o=new 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ln;for(t=32;t<vn;t++)if(0!==e.dyn_ltree[2*t])return ln;return fn}(e)),ri(e,e.l_desc),ri(e,e.d_desc),a=function(e){var t;for(ni(e,e.dyn_ltree,e.l_desc.max_code),ni(e,e.dyn_dtree,e.d_desc.max_code),ri(e,e.bl_desc),t=Sn-1;t>=3&&0===e.bl_tree[2*jn[t]+1];t--);return e.opt_len+=3*(t+1)+5+5+4,t}(e),i=e.opt_len+3+7>>>3,(o=e.static_len+3+7>>>3)<=i&&(i=o)):i=o=r+5,r+4<=i&&-1!==t?ai(e,t,r,n):e.strategy===cn||o===i?(Yn(e,(gn<<1)+(n?1:0),3),ti(e,Tn,Fn)):(Yn(e,(yn<<1)+(n?1:0),3),function(e,t,r,n){var i;for(Yn(e,t-257,5),Yn(e,r-1,5),Yn(e,n-4,4),i=0;i<n;i++)Yn(e,e.bl_tree[2*jn[i]+1],3);ii(e,e.dyn_ltree,t-1),ii(e,e.dyn_dtree,r-1)}(e,e.l_desc.max_code+1,e.d_desc.max_code+1,a+1),ti(e,e.dyn_ltree,e.dyn_dtree)),Jn(e),n&&Qn(e)},_tr_tally:function(e,t,r){return e.pending_buf[e.d_buf+2*e.last_lit]=t>>>8&255,e.pending_buf[e.d_buf+2*e.last_lit+1]=255&t,e.pending_buf[e.l_buf+e.last_lit]=255&r,e.last_lit++,0===t?e.dyn_ltree[2*r]++:(e.matches++,t--,e.dyn_ltree[2*(Rn[r]+vn+1)]++,e.dyn_dtree[2*Wn(t)]++),e.last_lit===e.lit_bufsize-1},_tr_align:function(e){Yn(e,gn<<1,3),Xn(e,On,Tn),function(e){16===e.bi_valid?(Hn(e,e.bi_buf),e.bi_buf=0,e.bi_valid=0):e.bi_valid>=8&&(e.pending_buf[e.pending++]=255&e.bi_buf,e.bi_buf>>=8,e.bi_valid-=8)}(e)}};var ui=function(e,t,r,n){for(var i=65535&e|0,o=e>>>16&65535|0,a=0;0!==r;){r-=a=r>2e3?2e3:r;do{o=o+(i=i+t[n++]|0)|0}while(--a);i%=65521,o%=65521}return i|o<<16|0};var ci=function(){for(var e,t=[],r=0;r<256;r++){e=r;for(var n=0;n<8;n++)e=1&e?3988292384^e>>>1:e>>>1;t[r]=e}return t}();var fi,li=function(e,t,r,n){var i=ci,o=n+r;e^=-1;for(var a=n;a<o;a++)e=e>>>8^i[255&(e^t[a])];return-1^e},hi={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"},pi=0,di=1,gi=3,yi=4,bi=5,vi=0,mi=1,wi=-2,Si=-3,xi=-5,Pi=-1,ki=1,Ai=2,Oi=3,Ci=4,Ii=0,_i=2,Di=8,Bi=9,Ei=15,ji=8,Ti=286,Fi=30,zi=19,Ri=2*Ti+1,Li=15,Ni=3,Mi=258,Ui=Mi+Ni+1,Gi=32,Vi=42,qi=69,Wi=73,Hi=91,Yi=103,Xi=113,Zi=666,Ki=1,Ji=2,Qi=3,$i=4,eo=3;function to(e,t){return e.msg=hi[t],t}function ro(e){return(e<<1)-(e>4?9:0)}function no(e){for(var t=e.length;--t>=0;)e[t]=0}function io(e){var t=e.state,r=t.pending;r>e.avail_out&&(r=e.avail_out),0!==r&&(un.arraySet(e.output,t.pending_buf,t.pending_out,r,e.next_out),e.next_out+=r,t.pending_out+=r,e.total_out+=r,e.avail_out-=r,t.pending-=r,0===t.pending&&(t.pending_out=0))}function oo(e,t){si._tr_flush_block(e,e.block_start>=0?e.block_start:-1,e.strstart-e.block_start,t),e.block_start=e.strstart,io(e.strm)}function ao(e,t){e.pending_buf[e.pending++]=t}function so(e,t){e.pending_buf[e.pending++]=t>>>8&255,e.pending_buf[e.pending++]=255&t}function uo(e,t){var r,n,i=e.max_chain_length,o=e.strstart,a=e.prev_length,s=e.nice_match,u=e.strstart>e.w_size-Ui?e.strstart-(e.w_size-Ui):0,c=e.window,f=e.w_mask,l=e.prev,h=e.strstart+Mi,p=c[o+a-1],d=c[o+a];e.prev_length>=e.good_match&&(i>>=2),s>e.lookahead&&(s=e.lookahead);do{if(c[(r=t)+a]===d&&c[r+a-1]===p&&c[r]===c[o]&&c[++r]===c[o+1]){o+=2,r++;do{}while(c[++o]===c[++r]&&c[++o]===c[++r]&&c[++o]===c[++r]&&c[++o]===c[++r]&&c[++o]===c[++r]&&c[++o]===c[++r]&&c[++o]===c[++r]&&c[++o]===c[++r]&&o<h);if(n=Mi-(h-o),o=h-Mi,n>a){if(e.match_start=t,a=n,n>=s)break;p=c[o+a-1],d=c[o+a]}}}while((t=l[t&f])>u&&0!=--i);return a<=e.lookahead?a:e.lookahead}function co(e){var t,r,n,i,o,a,s,u,c,f,l=e.w_size;do{if(i=e.window_size-e.lookahead-e.strstart,e.strstart>=l+(l-Ui)){un.arraySet(e.window,e.window,l,l,0),e.match_start-=l,e.strstart-=l,e.block_start-=l,t=r=e.hash_size;do{n=e.head[--t],e.head[t]=n>=l?n-l:0}while(--r);t=r=l;do{n=e.prev[--t],e.prev[t]=n>=l?n-l:0}while(--r);i+=l}if(0===e.strm.avail_in)break;if(a=e.strm,s=e.window,u=e.strstart+e.lookahead,c=i,f=void 0,(f=a.avail_in)>c&&(f=c),r=0===f?0:(a.avail_in-=f,un.arraySet(s,a.input,a.next_in,f,u),1===a.state.wrap?a.adler=ui(a.adler,s,f,u):2===a.state.wrap&&(a.adler=li(a.adler,s,f,u)),a.next_in+=f,a.total_in+=f,f),e.lookahead+=r,e.lookahead+e.insert>=Ni)for(o=e.strstart-e.insert,e.ins_h=e.window[o],e.ins_h=(e.ins_h<<e.hash_shift^e.window[o+1])&e.hash_mask;e.insert&&(e.ins_h=(e.ins_h<<e.hash_shift^e.window[o+Ni-1])&e.hash_mask,e.prev[o&e.w_mask]=e.head[e.ins_h],e.head[e.ins_h]=o,o++,e.insert--,!(e.lookahead+e.insert<Ni)););}while(e.lookahead<Ui&&0!==e.strm.avail_in)}function fo(e,t){for(var r,n;;){if(e.lookahead<Ui){if(co(e),e.lookahead<Ui&&t===pi)return Ki;if(0===e.lookahead)break}if(r=0,e.lookahead>=Ni&&(e.ins_h=(e.ins_h<<e.hash_shift^e.window[e.strstart+Ni-1])&e.hash_mask,r=e.prev[e.strstart&e.w_mask]=e.head[e.ins_h],e.head[e.ins_h]=e.strstart),0!==r&&e.strstart-r<=e.w_size-Ui&&(e.match_length=uo(e,r)),e.match_length>=Ni)if(n=si._tr_tally(e,e.strstart-e.match_start,e.match_length-Ni),e.lookahead-=e.match_length,e.match_length<=e.max_lazy_match&&e.lookahead>=Ni){e.match_length--;do{e.strstart++,e.ins_h=(e.ins_h<<e.hash_shift^e.window[e.strstart+Ni-1])&e.hash_mask,r=e.prev[e.strstart&e.w_mask]=e.head[e.ins_h],e.head[e.ins_h]=e.strstart}while(0!=--e.match_length);e.strstart++}else e.strstart+=e.match_length,e.match_length=0,e.ins_h=e.window[e.strstart],e.ins_h=(e.ins_h<<e.hash_shift^e.window[e.strstart+1])&e.hash_mask;else n=si._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++;if(n&&(oo(e,!1),0===e.strm.avail_out))return Ki}return e.insert=e.strstart<Ni-1?e.strstart:Ni-1,t===yi?(oo(e,!0),0===e.strm.avail_out?Qi:$i):e.last_lit&&(oo(e,!1),0===e.strm.avail_out)?Ki:Ji}function lo(e,t){for(var r,n,i;;){if(e.lookahead<Ui){if(co(e),e.lookahead<Ui&&t===pi)return Ki;if(0===e.lookahead)break}if(r=0,e.lookahead>=Ni&&(e.ins_h=(e.ins_h<<e.hash_shift^e.window[e.strstart+Ni-1])&e.hash_mask,r=e.prev[e.strstart&e.w_mask]=e.head[e.ins_h],e.head[e.ins_h]=e.strstart),e.prev_length=e.match_length,e.prev_match=e.match_start,e.match_length=Ni-1,0!==r&&e.prev_length<e.max_lazy_match&&e.strstart-r<=e.w_size-Ui&&(e.match_length=uo(e,r),e.match_length<=5&&(e.strategy===ki||e.match_length===Ni&&e.strstart-e.match_start>4096)&&(e.match_length=Ni-1)),e.prev_length>=Ni&&e.match_length<=e.prev_length){i=e.strstart+e.lookahead-Ni,n=si._tr_tally(e,e.strstart-1-e.prev_match,e.prev_length-Ni),e.lookahead-=e.prev_length-1,e.prev_length-=2;do{++e.strstart<=i&&(e.ins_h=(e.ins_h<<e.hash_shift^e.window[e.strstart+Ni-1])&e.hash_mask,r=e.prev[e.strstart&e.w_mask]=e.head[e.ins_h],e.head[e.ins_h]=e.strstart)}while(0!=--e.prev_length);if(e.match_available=0,e.match_length=Ni-1,e.strstart++,n&&(oo(e,!1),0===e.strm.avail_out))return Ki}else if(e.match_available){if((n=si._tr_tally(e,0,e.window[e.strstart-1]))&&oo(e,!1),e.strstart++,e.lookahead--,0===e.strm.avail_out)return Ki}else e.match_available=1,e.strstart++,e.lookahead--}return e.match_available&&(n=si._tr_tally(e,0,e.window[e.strstart-1]),e.match_available=0),e.insert=e.strstart<Ni-1?e.strstart:Ni-1,t===yi?(oo(e,!0),0===e.strm.avail_out?Qi:$i):e.last_lit&&(oo(e,!1),0===e.strm.avail_out)?Ki:Ji}function ho(e,t,r,n,i){this.good_length=e,this.max_lazy=t,this.nice_length=r,this.max_chain=n,this.func=i}function po(){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=Di,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 un.Buf16(2*Ri),this.dyn_dtree=new un.Buf16(2*(2*Fi+1)),this.bl_tree=new un.Buf16(2*(2*zi+1)),no(this.dyn_ltree),no(this.dyn_dtree),no(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new un.Buf16(Li+1),this.heap=new un.Buf16(2*Ti+1),no(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new un.Buf16(2*Ti+1),no(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 go(e){var t;return e&&e.state?(e.total_in=e.total_out=0,e.data_type=_i,(t=e.state).pending=0,t.pending_out=0,t.wrap<0&&(t.wrap=-t.wrap),t.status=t.wrap?Vi:Xi,e.adler=2===t.wrap?0:1,t.last_flush=pi,si._tr_init(t),vi):to(e,wi)}function yo(e){var t,r=go(e);return r===vi&&((t=e.state).window_size=2*t.w_size,no(t.head),t.max_lazy_match=fi[t.level].max_lazy,t.good_match=fi[t.level].good_length,t.nice_match=fi[t.level].nice_length,t.max_chain_length=fi[t.level].max_chain,t.strstart=0,t.block_start=0,t.lookahead=0,t.insert=0,t.match_length=t.prev_length=Ni-1,t.match_available=0,t.ins_h=0),r}function bo(e,t,r,n,i,o){if(!e)return wi;var a=1;if(t===Pi&&(t=6),n<0?(a=0,n=-n):n>15&&(a=2,n-=16),i<1||i>Bi||r!==Di||n<8||n>15||t<0||t>9||o<0||o>Ci)return to(e,wi);8===n&&(n=9);var s=new po;return e.state=s,s.strm=e,s.wrap=a,s.gzhead=null,s.w_bits=n,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+Ni-1)/Ni),s.window=new un.Buf8(2*s.w_size),s.head=new un.Buf16(s.hash_size),s.prev=new un.Buf16(s.w_size),s.lit_bufsize=1<<i+6,s.pending_buf_size=4*s.lit_bufsize,s.pending_buf=new un.Buf8(s.pending_buf_size),s.d_buf=1*s.lit_bufsize,s.l_buf=3*s.lit_bufsize,s.level=t,s.strategy=o,s.method=r,yo(e)}fi=[new ho(0,0,0,0,function(e,t){var r=65535;for(r>e.pending_buf_size-5&&(r=e.pending_buf_size-5);;){if(e.lookahead<=1){if(co(e),0===e.lookahead&&t===pi)return Ki;if(0===e.lookahead)break}e.strstart+=e.lookahead,e.lookahead=0;var n=e.block_start+r;if((0===e.strstart||e.strstart>=n)&&(e.lookahead=e.strstart-n,e.strstart=n,oo(e,!1),0===e.strm.avail_out))return Ki;if(e.strstart-e.block_start>=e.w_size-Ui&&(oo(e,!1),0===e.strm.avail_out))return Ki}return e.insert=0,t===yi?(oo(e,!0),0===e.strm.avail_out?Qi:$i):(e.strstart>e.block_start&&(oo(e,!1),e.strm.avail_out),Ki)}),new ho(4,4,8,4,fo),new ho(4,5,16,8,fo),new ho(4,6,32,32,fo),new ho(4,4,16,16,lo),new ho(8,16,32,32,lo),new ho(8,16,128,128,lo),new ho(8,32,128,256,lo),new ho(32,128,258,1024,lo),new ho(32,258,258,4096,lo)];var vo={deflateInit:function(e,t){return bo(e,t,Di,Ei,ji,Ii)},deflateInit2:bo,deflateReset:yo,deflateResetKeep:go,deflateSetHeader:function(e,t){return e&&e.state?2!==e.state.wrap?wi:(e.state.gzhead=t,vi):wi},deflate:function(e,t){var r,n,i,o;if(!e||!e.state||t>bi||t<0)return e?to(e,wi):wi;if(n=e.state,!e.output||!e.input&&0!==e.avail_in||n.status===Zi&&t!==yi)return to(e,0===e.avail_out?xi:wi);if(n.strm=e,r=n.last_flush,n.last_flush=t,n.status===Vi)if(2===n.wrap)e.adler=0,ao(n,31),ao(n,139),ao(n,8),n.gzhead?(ao(n,(n.gzhead.text?1:0)+(n.gzhead.hcrc?2:0)+(n.gzhead.extra?4:0)+(n.gzhead.name?8:0)+(n.gzhead.comment?16:0)),ao(n,255&n.gzhead.time),ao(n,n.gzhead.time>>8&255),ao(n,n.gzhead.time>>16&255),ao(n,n.gzhead.time>>24&255),ao(n,9===n.level?2:n.strategy>=Ai||n.level<2?4:0),ao(n,255&n.gzhead.os),n.gzhead.extra&&n.gzhead.extra.length&&(ao(n,255&n.gzhead.extra.length),ao(n,n.gzhead.extra.length>>8&255)),n.gzhead.hcrc&&(e.adler=li(e.adler,n.pending_buf,n.pending,0)),n.gzindex=0,n.status=qi):(ao(n,0),ao(n,0),ao(n,0),ao(n,0),ao(n,0),ao(n,9===n.level?2:n.strategy>=Ai||n.level<2?4:0),ao(n,eo),n.status=Xi);else{var a=Di+(n.w_bits-8<<4)<<8;a|=(n.strategy>=Ai||n.level<2?0:n.level<6?1:6===n.level?2:3)<<6,0!==n.strstart&&(a|=Gi),a+=31-a%31,n.status=Xi,so(n,a),0!==n.strstart&&(so(n,e.adler>>>16),so(n,65535&e.adler)),e.adler=1}if(n.status===qi)if(n.gzhead.extra){for(i=n.pending;n.gzindex<(65535&n.gzhead.extra.length)&&(n.pending!==n.pending_buf_size||(n.gzhead.hcrc&&n.pending>i&&(e.adler=li(e.adler,n.pending_buf,n.pending-i,i)),io(e),i=n.pending,n.pending!==n.pending_buf_size));)ao(n,255&n.gzhead.extra[n.gzindex]),n.gzindex++;n.gzhead.hcrc&&n.pending>i&&(e.adler=li(e.adler,n.pending_buf,n.pending-i,i)),n.gzindex===n.gzhead.extra.length&&(n.gzindex=0,n.status=Wi)}else n.status=Wi;if(n.status===Wi)if(n.gzhead.name){i=n.pending;do{if(n.pending===n.pending_buf_size&&(n.gzhead.hcrc&&n.pending>i&&(e.adler=li(e.adler,n.pending_buf,n.pending-i,i)),io(e),i=n.pending,n.pending===n.pending_buf_size)){o=1;break}o=n.gzindex<n.gzhead.name.length?255&n.gzhead.name.charCodeAt(n.gzindex++):0,ao(n,o)}while(0!==o);n.gzhead.hcrc&&n.pending>i&&(e.adler=li(e.adler,n.pending_buf,n.pending-i,i)),0===o&&(n.gzindex=0,n.status=Hi)}else n.status=Hi;if(n.status===Hi)if(n.gzhead.comment){i=n.pending;do{if(n.pending===n.pending_buf_size&&(n.gzhead.hcrc&&n.pending>i&&(e.adler=li(e.adler,n.pending_buf,n.pending-i,i)),io(e),i=n.pending,n.pending===n.pending_buf_size)){o=1;break}o=n.gzindex<n.gzhead.comment.length?255&n.gzhead.comment.charCodeAt(n.gzindex++):0,ao(n,o)}while(0!==o);n.gzhead.hcrc&&n.pending>i&&(e.adler=li(e.adler,n.pending_buf,n.pending-i,i)),0===o&&(n.status=Yi)}else n.status=Yi;if(n.status===Yi&&(n.gzhead.hcrc?(n.pending+2>n.pending_buf_size&&io(e),n.pending+2<=n.pending_buf_size&&(ao(n,255&e.adler),ao(n,e.adler>>8&255),e.adler=0,n.status=Xi)):n.status=Xi),0!==n.pending){if(io(e),0===e.avail_out)return n.last_flush=-1,vi}else if(0===e.avail_in&&ro(t)<=ro(r)&&t!==yi)return to(e,xi);if(n.status===Zi&&0!==e.avail_in)return to(e,xi);if(0!==e.avail_in||0!==n.lookahead||t!==pi&&n.status!==Zi){var s=n.strategy===Ai?function(e,t){for(var r;;){if(0===e.lookahead&&(co(e),0===e.lookahead)){if(t===pi)return Ki;break}if(e.match_length=0,r=si._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++,r&&(oo(e,!1),0===e.strm.avail_out))return Ki}return e.insert=0,t===yi?(oo(e,!0),0===e.strm.avail_out?Qi:$i):e.last_lit&&(oo(e,!1),0===e.strm.avail_out)?Ki:Ji}(n,t):n.strategy===Oi?function(e,t){for(var r,n,i,o,a=e.window;;){if(e.lookahead<=Mi){if(co(e),e.lookahead<=Mi&&t===pi)return Ki;if(0===e.lookahead)break}if(e.match_length=0,e.lookahead>=Ni&&e.strstart>0&&(n=a[i=e.strstart-1])===a[++i]&&n===a[++i]&&n===a[++i]){o=e.strstart+Mi;do{}while(n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&n===a[++i]&&i<o);e.match_length=Mi-(o-i),e.match_length>e.lookahead&&(e.match_length=e.lookahead)}if(e.match_length>=Ni?(r=si._tr_tally(e,1,e.match_length-Ni),e.lookahead-=e.match_length,e.strstart+=e.match_length,e.match_length=0):(r=si._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++),r&&(oo