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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Array(16);for(r=0,n=0;n<28;n++)for(St[n]=r,t=0;t<1<<vt[n];t++)Ft[r++]=n;for(Ft[r-1]=n,i=0,n=0;n<16;n++)for(zt[n]=i,t=0;t<1<<yt[n];t++)kt[i++]=n;for(i>>=7;n<30;n++)for(zt[n]=i<<7,t=0;t<1<<yt[n]-7;t++)kt[256+i++]=n;for(e=0;e<=15;e++)o[e]=0;for(t=0;t<=143;)wt[2*t+1]=8,t++,o[8]++;for(;t<=255;)wt[2*t+1]=9,t++,o[9]++;for(;t<=279;)wt[2*t+1]=7,t++,o[7]++;for(;t<=287;)wt[2*t+1]=8,t++,o[8]++;for(jt(wt,287,o),t=0;t<30;t++)xt[2*t+1]=5,xt[2*t]=Et(t,5);Ct=new Ot(wt,vt,257,286,15),At=new Ot(xt,yt,0,30,15),Tt=new Ot(new Array(0),mt,0,19,7)}(),Gt=!0),t.l_desc=new Rt(t.dyn_ltree,Ct),t.d_desc=new Rt(t.dyn_dtree,At),t.bl_desc=new Rt(t.bl_tree,Tt),t.bi_buf=0,t.bi_valid=0,It(t)},_tr_stored_block:_t,_tr_flush_block:function(t,e,r,n){var i,o,a=0;t.level>0?(2===t.strm.data_type&&(t.strm.data_type=function(t){var e,r=4093624447;for(e=0;e<=31;e++,r>>>=1)if(1&r&&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)),Wt(t,t.l_desc),Wt(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),Wt(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=r+5,r+4<=i&&-1!==e?_t(t,e,r,n):4===t.strategy||o===i?(Dt(t,2+(n?1:0),3),qt(t,wt,xt)):(Dt(t,4+(n?1:0),3),function(t,e,r,n){var i;for(Dt(t,e-257,5),Dt(t,r-1,5),Dt(t,n-4,4),i=0;i<n;i++)Dt(t,t.bl_tree[2*bt[i]+1],3);Kt(t,t.dyn_ltree,e-1),Kt(t,t.dyn_dtree,r-1)}(t,t.l_desc.max_code+1,t.d_desc.max_code+1,a+1),qt(t,t.dyn_ltree,t.dyn_dtree)),It(t),n&&Mt(t)},_tr_tally:function(t,e,r){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&r,t.last_lit++,0===e?t.dyn_ltree[2*r]++:(t.matches++,e--,t.dyn_ltree[2*(Ft[r]+256+1)]++,t.dyn_dtree[2*Pt(e)]++),t.last_lit===t.lit_bufsize-1},_tr_align:function(t){Dt(t,2,3),Nt(t,256,wt),function(t){16===t.bi_valid?(Bt(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 Zt=function(t,e,r,n){for(var i=65535&t|0,o=t>>>16&65535|0,a=0;0!==r;){r-=a=r>2e3?2e3:r;do{o=o+(i=i+e[n++]|0)|0}while(--a);i%=65521,o%=65521}return i|o<<16|0};var Ht=function(){for(var t,e=[],r=0;r<256;r++){t=r;for(var n=0;n<8;n++)t=1&t?3988292384^t>>>1:t>>>1;e[r]=t}return e}();var Yt,Jt=function(t,e,r,n){var i=Ht,o=n+r;t^=-1;for(var a=n;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 re(t){var e=t.state,r=e.pending;r>t.avail_out&&(r=t.avail_out),0!==r&&(pt.arraySet(t.output,e.pending_buf,e.pending_out,r,t.next_out),t.next_out+=r,e.pending_out+=r,t.total_out+=r,t.avail_out-=r,e.pending-=r,0===e.pending&&(e.pending_out=0))}function ne(t,e){Xt._tr_flush_block(t,t.block_start>=0?t.block_start:-1,t.strstart-t.block_start,e),t.block_start=t.strstart,re(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,r,n){var i=t.avail_in;return i>n&&(i=n),0===i?0:(t.avail_in-=i,pt.arraySet(e,t.input,t.next_in,i,r),1===t.state.wrap?t.adler=Zt(t.adler,e,i,r):2===t.state.wrap&&(t.adler=Jt(t.adler,e,i,r)),t.next_in+=i,t.total_in+=i,i)}function se(t,e){var r,n,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[(r=e)+a]===p&&h[r+a-1]===f&&h[r]===h[o]&&h[++r]===h[o+1]){o+=2,r++;do{}while(h[++o]===h[++r]&&h[++o]===h[++r]&&h[++o]===h[++r]&&h[++o]===h[++r]&&h[++o]===h[++r]&&h[++o]===h[++r]&&h[++o]===h[++r]&&h[++o]===h[++r]&&o<d);if(n=258-(d-o),o=d-258,n>a){if(t.match_start=e,a=n,n>=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,r,n,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=r=t.hash_size;do{n=t.head[--e],t.head[e]=n>=a?n-a:0}while(--r);e=r=a;do{n=t.prev[--e],t.prev[e]=n>=a?n-a:0}while(--r);i+=a}if(0===t.strm.avail_in)break;if(r=ae(t.strm,t.window,t.strstart+t.lookahead,i),t.lookahead+=r,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 r,n;;){if(t.lookahead<262){if(le(t),t.lookahead<262&&0===e)return 1;if(0===t.lookahead)break}if(r=0,t.lookahead>=3&&(t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+3-1])&t.hash_mask,r=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart),0!==r&&t.strstart-r<=t.w_size-262&&(t.match_length=se(t,r)),t.match_length>=3)if(n=Xt._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,r=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 n=Xt._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++;if(n&&(ne(t,!1),0===t.strm.avail_out))return 1}return t.insert=t.strstart<2?t.strstart:2,4===e?(ne(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(ne(t,!1),0===t.strm.avail_out)?1:2}function ue(t,e){for(var r,n,i;;){if(t.lookahead<262){if(le(t),t.lookahead<262&&0===e)return 1;if(0===t.lookahead)break}if(r=0,t.lookahead>=3&&(t.ins_h=(t.ins_h<<t.hash_shift^t.window[t.strstart+3-1])&t.hash_mask,r=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!==r&&t.prev_length<t.max_lazy_match&&t.strstart-r<=t.w_size-262&&(t.match_length=se(t,r),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,n=Xt._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,r=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++,n&&(ne(t,!1),0===t.strm.avail_out))return 1}else if(t.match_available){if((n=Xt._tr_tally(t,0,t.window[t.strstart-1]))&&ne(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&&(n=Xt._tr_tally(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<2?t.strstart:2,4===e?(ne(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(ne(t,!1),0===t.strm.avail_out)?1:2}function ce(t,e,r,n,i){this.good_length=t,this.max_lazy=e,this.nice_length=r,this.max_chain=n,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,Xt._tr_init(e),0):$t(t,-2)}function pe(t){var e,r=fe(t);return 0===r&&((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),r}function ge(t,e,r,n,i,o){if(!t)return-2;var a=1;if(-1===e&&(e=6),n<0?(a=0,n=-n):n>15&&(a=2,n-=16),i<1||i>9||8!==r||n<8||n>15||e<0||e>9||o<0||o>4)return $t(t,-2);8===n&&(n=9);var s=new de;return t.state=s,s.strm=t,s.wrap=a,s.gzhead=null,s.w_bits=n,s.w_size=1<<s.w_bits,s.w_mask=s.w_size-1,s.hash_bits=i+7,s.hash_size=1<<s.hash_bits,s.hash_mask=s.hash_size-1,s.hash_shift=~~((s.hash_bits+3-1)/3),s.window=new pt.Buf8(2*s.w_size),s.head=new pt.Buf16(s.hash_size),s.prev=new pt.Buf16(s.w_size),s.lit_bufsize=1<<i+6,s.pending_buf_size=4*s.lit_bufsize,s.pending_buf=new pt.Buf8(s.pending_buf_size),s.d_buf=1*s.lit_bufsize,s.l_buf=3*s.lit_bufsize,s.level=e,s.strategy=o,s.method=r,pe(t)}Yt=[new ce(0,0,0,0,(function(t,e){var r=65535;for(r>t.pending_buf_size-5&&(r=t.pending_buf_size-5);;){if(t.lookahead<=1){if(le(t),0===t.lookahead&&0===e)return 1;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;var n=t.block_start+r;if((0===t.strstart||t.strstart>=n)&&(t.lookahead=t.strstart-n,t.strstart=n,ne(t,!1),0===t.strm.avail_out))return 1;if(t.strstart-t.block_start>=t.w_size-262&&(ne(t,!1),0===t.strm.avail_out))return 1}return t.insert=0,4===e?(ne(t,!0),0===t.strm.avail_out?3:4):(t.strstart>t.block_start&&(ne(t,!1),t.strm.avail_out),1)})),new ce(4,4,8,4,he),new ce(4,5,16,8,he),new ce(4,6,32,32,he),new ce(4,4,16,16,ue),new ce(8,16,32,32,ue),new ce(8,16,128,128,ue),new ce(8,32,128,256,ue),new ce(32,128,258,1024,ue),new ce(32,258,258,4096,ue)];var ve={deflateInit:function(t,e){return ge(t,e,8,15,8,0)},deflateInit2:ge,deflateReset:pe,deflateResetKeep:fe,deflateSetHeader:function(t,e){return t&&t.state?2!==t.state.wrap?-2:(t.state.gzhead=e,0):-2},deflate:function(t,e){var r,n,i,o;if(!t||!t.state||e>5||e<0)return t?$t(t,-2):-2;if(n=t.state,!t.output||!t.input&&0!==t.avail_in||666===n.status&&4!==e)return 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a=8+(n.w_bits-8<<4)<<8;a|=(n.strategy>=2||n.level<2?0:n.level<6?1:6===n.level?2:3)<<6,0!==n.strstart&&(a|=32),a+=31-a%31,n.status=113,oe(n,a),0!==n.strstart&&(oe(n,t.adler>>>16),oe(n,65535&t.adler)),t.adler=1}if(69===n.status)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&&(t.adler=Jt(t.adler,n.pending_buf,n.pending-i,i)),re(t),i=n.pending,n.pending!==n.pending_buf_size));)ie(n,255&n.gzhead.extra[n.gzindex]),n.gzindex++;n.gzhead.hcrc&&n.pending>i&&(t.adler=Jt(t.adler,n.pending_buf,n.pending-i,i)),n.gzindex===n.gzhead.extra.length&&(n.gzindex=0,n.status=73)}else 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t;s--,h+=n[o++]<<u,u+=8}if(2&r.wrap&&35615===h){r.check=0,T[0]=255&h,T[1]=h>>>8&255,r.check=Jt(r.check,T,2,0),h=0,u=0,r.mode=2;break}if(r.flags=0,r.head&&(r.head.done=!1),!(1&r.wrap)||(((255&h)<<8)+(h>>8))%31){t.msg="incorrect header check",r.mode=30;break}if(8!=(15&h)){t.msg="unknown compression method",r.mode=30;break}if(u-=4,k=8+(15&(h>>>=4)),0===r.wbits)r.wbits=k;else if(k>r.wbits){t.msg="invalid window size",r.mode=30;break}r.dmax=1<<k,t.adler=r.check=1,r.mode=512&h?10:12,h=0,u=0;break;case 2:for(;u<16;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(r.flags=h,8!=(255&r.flags)){t.msg="unknown compression method",r.mode=30;break}if(57344&r.flags){t.msg="unknown header flags set",r.mode=30;break}r.head&&(r.head.text=h>>8&1),512&r.flags&&(T[0]=255&h,T[1]=h>>>8&255,r.check=Jt(r.check,T,2,0)),h=0,u=0,r.mode=3;case 3:for(;u<32;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}r.head&&(r.head.time=h),512&r.flags&&(T[0]=255&h,T[1]=h>>>8&255,T[2]=h>>>16&255,T[3]=h>>>24&255,r.check=Jt(r.check,T,4,0)),h=0,u=0,r.mode=4;case 4:for(;u<16;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}r.head&&(r.head.xflags=255&h,r.head.os=h>>8),512&r.flags&&(T[0]=255&h,T[1]=h>>>8&255,r.check=Jt(r.check,T,2,0)),h=0,u=0,r.mode=5;case 5:if(1024&r.flags){for(;u<16;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}r.length=h,r.head&&(r.head.extra_len=h),512&r.flags&&(T[0]=255&h,T[1]=h>>>8&255,r.check=Jt(r.check,T,2,0)),h=0,u=0}else r.head&&(r.head.extra=null);r.mode=6;case 6:if(1024&r.flags&&((f=r.length)>s&&(f=s),f&&(r.head&&(k=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Array(r.head.extra_len)),pt.arraySet(r.head.extra,n,o,f,k)),512&r.flags&&(r.check=Jt(r.check,n,f,o)),s-=f,o+=f,r.length-=f),r.length))break t;r.length=0,r.mode=7;case 7:if(2048&r.flags){if(0===s)break t;f=0;do{k=n[o+f++],r.head&&k&&r.length<65536&&(r.head.name+=String.fromCharCode(k))}while(k&&f<s);if(512&r.flags&&(r.check=Jt(r.check,n,f,o)),s-=f,o+=f,k)break t}else r.head&&(r.head.name=null);r.length=0,r.mode=8;case 8:if(4096&r.flags){if(0===s)break t;f=0;do{k=n[o+f++],r.head&&k&&r.length<65536&&(r.head.comment+=String.fromCharCode(k))}while(k&&f<s);if(512&r.flags&&(r.check=Jt(r.check,n,f,o)),s-=f,o+=f,k)break t}else r.head&&(r.head.comment=null);r.mode=9;case 9:if(512&r.flags){for(;u<16;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(h!==(65535&r.check)){t.msg="header crc mismatch",r.mode=30;break}h=0,u=0}r.head&&(r.head.hcrc=r.flags>>9&1,r.head.done=!0),t.adler=r.check=0,r.mode=12;break;case 10:for(;u<32;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}t.adler=r.check=Me(h),h=0,u=0,r.mode=11;case 11:if(0===r.havedict)return t.next_out=a,t.avail_out=l,t.next_in=o,t.avail_in=s,r.hold=h,r.bits=u,2;t.adler=r.check=1,r.mode=12;case 12:if(5===e||6===e)break t;case 13:if(r.last){h>>>=7&u,u-=7&u,r.mode=27;break}for(;u<3;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}switch(r.last=1&h,u-=1,3&(h>>>=1)){case 0:r.mode=14;break;case 1:if(Xe(r),r.mode=20,6===e){h>>>=2,u-=2;break t}break;case 2:r.mode=17;break;case 3:t.msg="invalid block type",r.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+=n[o++]<<u,u+=8}if((65535&h)!=(h>>>16^65535)){t.msg="invalid stored block lengths",r.mode=30;break}if(r.length=65535&h,h=0,u=0,r.mode=15,6===e)break t;case 15:r.mode=16;case 16:if(f=r.length){if(f>s&&(f=s),f>l&&(f=l),0===f)break t;pt.arraySet(i,n,o,f,a),s-=f,o+=f,l-=f,a+=f,r.length-=f;break}r.mode=12;break;case 17:for(;u<14;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(r.nlen=257+(31&h),h>>>=5,u-=5,r.ndist=1+(31&h),h>>>=5,u-=5,r.ncode=4+(15&h),h>>>=4,u-=4,r.nlen>286||r.ndist>30){t.msg="too many length or distance symbols",r.mode=30;break}r.have=0,r.mode=18;case 18:for(;r.have<r.ncode;){for(;u<3;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}r.lens[z[r.have++]]=7&h,h>>>=3,u-=3}for(;r.have<19;)r.lens[z[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,S={bits:r.lenbits},F=Ie(0,r.lens,0,19,r.lencode,0,r.work,S),r.lenbits=S.bits,F){t.msg="invalid code lengths set",r.mode=30;break}r.have=0,r.mode=19;case 19:for(;r.have<r.nlen+r.ndist;){for(;y=(A=r.lencode[h&(1<<r.lenbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(m<16)h>>>=v,u-=v,r.lens[r.have++]=m;else{if(16===m){for(C=v+2;u<C;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(h>>>=v,u-=v,0===r.have){t.msg="invalid bit length repeat",r.mode=30;break}k=r.lens[r.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+=n[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+=n[o++]<<u,u+=8}u-=v,k=0,f=11+(127&(h>>>=v)),h>>>=7,u-=7}if(r.have+f>r.nlen+r.ndist){t.msg="invalid bit length repeat",r.mode=30;break}for(;f--;)r.lens[r.have++]=k}}if(30===r.mode)break;if(0===r.lens[256]){t.msg="invalid code -- missing end-of-block",r.mode=30;break}if(r.lenbits=9,S={bits:r.lenbits},F=Ie(1,r.lens,0,r.nlen,r.lencode,0,r.work,S),r.lenbits=S.bits,F){t.msg="invalid literal/lengths set",r.mode=30;break}if(r.distbits=6,r.distcode=r.distdyn,S={bits:r.distbits},F=Ie(2,r.lens,r.nlen,r.ndist,r.distcode,0,r.work,S),r.distbits=S.bits,F){t.msg="invalid distances set",r.mode=30;break}if(r.mode=20,6===e)break t;case 20:r.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,r.hold=h,r.bits=u,Be(t,d),a=t.next_out,i=t.output,l=t.avail_out,o=t.next_in,n=t.input,s=t.avail_in,h=r.hold,u=r.bits,12===r.mode&&(r.back=-1);break}for(r.back=0;y=(A=r.lencode[h&(1<<r.lenbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(y&&0==(240&y)){for(b=v,w=y,x=m;y=(A=r.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+=n[o++]<<u,u+=8}h>>>=b,u-=b,r.back+=b}if(h>>>=v,u-=v,r.back+=v,r.length=m,0===y){r.mode=26;break}if(32&y){r.back=-1,r.mode=12;break}if(64&y){t.msg="invalid literal/length code",r.mode=30;break}r.extra=15&y,r.mode=22;case 22:if(r.extra){for(C=r.extra;u<C;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}r.length+=h&(1<<r.extra)-1,h>>>=r.extra,u-=r.extra,r.back+=r.extra}r.was=r.length,r.mode=23;case 23:for(;y=(A=r.distcode[h&(1<<r.distbits)-1])>>>16&255,m=65535&A,!((v=A>>>24)<=u);){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(0==(240&y)){for(b=v,w=y,x=m;y=(A=r.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+=n[o++]<<u,u+=8}h>>>=b,u-=b,r.back+=b}if(h>>>=v,u-=v,r.back+=v,64&y){t.msg="invalid distance code",r.mode=30;break}r.offset=m,r.extra=15&y,r.mode=24;case 24:if(r.extra){for(C=r.extra;u<C;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}r.offset+=h&(1<<r.extra)-1,h>>>=r.extra,u-=r.extra,r.back+=r.extra}if(r.offset>r.dmax){t.msg="invalid distance too far back",r.mode=30;break}r.mode=25;case 25:if(0===l)break t;if(f=d-l,r.offset>f){if((f=r.offset-f)>r.whave&&r.sane){t.msg="invalid distance too far back",r.mode=30;break}f>r.wnext?(f-=r.wnext,p=r.wsize-f):p=r.wnext-f,f>r.length&&(f=r.length),g=r.window}else g=i,p=a-r.offset,f=r.length;f>l&&(f=l),l-=f,r.length-=f;do{i[a++]=g[p++]}while(--f);0===r.length&&(r.mode=21);break;case 26:if(0===l)break t;i[a++]=r.length,l--,r.mode=21;break;case 27:if(r.wrap){for(;u<32;){if(0===s)break t;s--,h|=n[o++]<<u,u+=8}if(d-=l,t.total_out+=d,r.total+=d,d&&(t.adler=r.check=r.flags?Jt(r.check,i,d,a-d):Zt(r.check,i,d,a-d)),d=l,(r.flags?h:Me(h))!==r.check){t.msg="incorrect data check",r.mode=30;break}h=0,u=0}r.mode=28;case 28:if(r.wrap&&r.flags){for(;u<32;){if(0===s)break t;s--,h+=n[o++]<<u,u+=8}if(h!==(4294967295&r.total)){t.msg="incorrect length check",r.mode=30;break}h=0,u=0}r.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,r.hold=h,r.bits=u,(r.wsize||d!==t.avail_out&&r.mode<30&&(r.mode<27||4!==e))&&Ze(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,r.total+=d,r.wrap&&d&&(t.adler=r.check=r.flags?Jt(r.check,i,d,t.next_out-d):Zt(r.check,i,d,t.next_out-d)),t.data_type=r.bits+(r.last?64:0)+(12===r.mode?128:0)+(20===r.mode||15===r.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.window=null),t.state=null,0},inflateGetHeader:function(t,e){var r;return t&&t.state?0==(2&(r=t.