1 line
5.9 KiB
JavaScript
1 line
5.9 KiB
JavaScript
var LZString={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",_f:String.fromCharCode,compressToBase64:function(e){if(e==null)return"";var t="";var n,r,i,s,o,u,a;var f=0;e=LZString.compress(e);while(f<e.length*2){if(f%2==0){n=e.charCodeAt(f/2)>>8;r=e.charCodeAt(f/2)&255;if(f/2+1<e.length)i=e.charCodeAt(f/2+1)>>8;else i=NaN}else{n=e.charCodeAt((f-1)/2)&255;if((f+1)/2<e.length){r=e.charCodeAt((f+1)/2)>>8;i=e.charCodeAt((f+1)/2)&255}else r=i=NaN}f+=3;s=n>>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+LZString._keyStr.charAt(s)+LZString._keyStr.charAt(o)+LZString._keyStr.charAt(u)+LZString._keyStr.charAt(a)}return t},decompressFromBase64:function(e){if(e==null)return"";var t="",n=0,r,i,s,o,u,a,f,l,c=0,h=LZString._f;e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");while(c<e.length){u=LZString._keyStr.indexOf(e.charAt(c++));a=LZString._keyStr.indexOf(e.charAt(c++));f=LZString._keyStr.indexOf(e.charAt(c++));l=LZString._keyStr.indexOf(e.charAt(c++));i=u<<2|a>>4;s=(a&15)<<4|f>>2;o=(f&3)<<6|l;if(n%2==0){r=i<<8;if(f!=64){t+=h(r|s)}if(l!=64){r=o<<8}}else{t=t+h(r|i);if(f!=64){r=s<<8}if(l!=64){t+=h(r|o)}}n+=3}return LZString.decompress(t)},compressToUTF16:function(e){if(e==null)return"";var t="",n,r,i,s=0,o=LZString._f;e=LZString.compress(e);for(n=0;n<e.length;n++){r=e.charCodeAt(n);switch(s++){case 0:t+=o((r>>1)+32);i=(r&1)<<14;break;case 1:t+=o(i+(r>>2)+32);i=(r&3)<<13;break;case 2:t+=o(i+(r>>3)+32);i=(r&7)<<12;break;case 3:t+=o(i+(r>>4)+32);i=(r&15)<<11;break;case 4:t+=o(i+(r>>5)+32);i=(r&31)<<10;break;case 5:t+=o(i+(r>>6)+32);i=(r&63)<<9;break;case 6:t+=o(i+(r>>7)+32);i=(r&127)<<8;break;case 7:t+=o(i+(r>>8)+32);i=(r&255)<<7;break;case 8:t+=o(i+(r>>9)+32);i=(r&511)<<6;break;case 9:t+=o(i+(r>>10)+32);i=(r&1023)<<5;break;case 10:t+=o(i+(r>>11)+32);i=(r&2047)<<4;break;case 11:t+=o(i+(r>>12)+32);i=(r&4095)<<3;break;case 12:t+=o(i+(r>>13)+32);i=(r&8191)<<2;break;case 13:t+=o(i+(r>>14)+32);i=(r&16383)<<1;break;case 14:t+=o(i+(r>>15)+32,(r&32767)+32);s=0;break}}return t+o(i+32)},decompressFromUTF16:function(e){if(e==null)return"";var t="",n,r,i=0,s=0,o=LZString._f;while(s<e.length){r=e.charCodeAt(s)-32;switch(i++){case 0:n=r<<1;break;case 1:t+=o(n|r>>14);n=(r&16383)<<2;break;case 2:t+=o(n|r>>13);n=(r&8191)<<3;break;case 3:t+=o(n|r>>12);n=(r&4095)<<4;break;case 4:t+=o(n|r>>11);n=(r&2047)<<5;break;case 5:t+=o(n|r>>10);n=(r&1023)<<6;break;case 6:t+=o(n|r>>9);n=(r&511)<<7;break;case 7:t+=o(n|r>>8);n=(r&255)<<8;break;case 8:t+=o(n|r>>7);n=(r&127)<<9;break;case 9:t+=o(n|r>>6);n=(r&63)<<10;break;case 10:t+=o(n|r>>5);n=(r&31)<<11;break;case 11:t+=o(n|r>>4);n=(r&15)<<12;break;case 12:t+=o(n|r>>3);n=(r&7)<<13;break;case 13:t+=o(n|r>>2);n=(r&3)<<14;break;case 14:t+=o(n|r>>1);n=(r&1)<<15;break;case 15:t+=o(n|r);i=0;break}s++}return LZString.decompress(t)},compress:function(e){if(e==null)return"";var t,n,r={},i={},s="",o="",u="",a=2,f=3,l=2,c="",h=0,p=0,d,v=LZString._f;for(d=0;d<e.length;d+=1){s=e.charAt(d);if(!Object.prototype.hasOwnProperty.call(r,s)){r[s]=f++;i[s]=true}o=u+s;if(Object.prototype.hasOwnProperty.call(r,o)){u=o}else{if(Object.prototype.hasOwnProperty.call(i,u)){if(u.charCodeAt(0)<256){for(t=0;t<l;t++){h=h<<1;if(p==15){p=0;c+=v(h);h=0}else{p++}}n=u.charCodeAt(0);for(t=0;t<8;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}}else{n=1;for(t=0;t<l;t++){h=h<<1|n;if(p==15){p=0;c+=v(h);h=0}else{p++}n=0}n=u.charCodeAt(0);for(t=0;t<16;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}}a--;if(a==0){a=Math.pow(2,l);l++}delete i[u]}else{n=r[u];for(t=0;t<l;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}}a--;if(a==0){a=Math.pow(2,l);l++}r[o]=f++;u=String(s)}}if(u!==""){if(Object.prototype.hasOwnProperty.call(i,u)){if(u.charCodeAt(0)<256){for(t=0;t<l;t++){h=h<<1;if(p==15){p=0;c+=v(h);h=0}else{p++}}n=u.charCodeAt(0);for(t=0;t<8;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}}else{n=1;for(t=0;t<l;t++){h=h<<1|n;if(p==15){p=0;c+=v(h);h=0}else{p++}n=0}n=u.charCodeAt(0);for(t=0;t<16;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}}a--;if(a==0){a=Math.pow(2,l);l++}delete i[u]}else{n=r[u];for(t=0;t<l;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}}a--;if(a==0){a=Math.pow(2,l);l++}}n=2;for(t=0;t<l;t++){h=h<<1|n&1;if(p==15){p=0;c+=v(h);h=0}else{p++}n=n>>1}while(true){h=h<<1;if(p==15){c+=v(h);break}else p++}return c},decompress:function(e){if(e==null)return"";if(e=="")return null;var t=[],n,r=4,i=4,s=3,o="",u="",a,f,l,c,h,p,d,v=LZString._f,m={string:e,val:e.charCodeAt(0),position:32768,index:1};for(a=0;a<3;a+=1){t[a]=a}l=0;h=Math.pow(2,2);p=1;while(p!=h){c=m.val&m.position;m.position>>=1;if(m.position==0){m.position=32768;m.val=m.string.charCodeAt(m.index++)}l|=(c>0?1:0)*p;p<<=1}switch(n=l){case 0:l=0;h=Math.pow(2,8);p=1;while(p!=h){c=m.val&m.position;m.position>>=1;if(m.position==0){m.position=32768;m.val=m.string.charCodeAt(m.index++)}l|=(c>0?1:0)*p;p<<=1}d=v(l);break;case 1:l=0;h=Math.pow(2,16);p=1;while(p!=h){c=m.val&m.position;m.position>>=1;if(m.position==0){m.position=32768;m.val=m.string.charCodeAt(m.index++)}l|=(c>0?1:0)*p;p<<=1}d=v(l);break;case 2:return""}t[3]=d;f=u=d;while(true){if(m.index>m.string.length){return""}l=0;h=Math.pow(2,s);p=1;while(p!=h){c=m.val&m.position;m.position>>=1;if(m.position==0){m.position=32768;m.val=m.string.charCodeAt(m.index++)}l|=(c>0?1:0)*p;p<<=1}switch(d=l){case 0:l=0;h=Math.pow(2,8);p=1;while(p!=h){c=m.val&m.position;m.position>>=1;if(m.position==0){m.position=32768;m.val=m.string.charCodeAt(m.index++)}l|=(c>0?1:0)*p;p<<=1}t[i++]=v(l);d=i-1;r--;break;case 1:l=0;h=Math.pow(2,16);p=1;while(p!=h){c=m.val&m.position;m.position>>=1;if(m.position==0){m.position=32768;m.val=m.string.charCodeAt(m.index++)}l|=(c>0?1:0)*p;p<<=1}t[i++]=v(l);d=i-1;r--;break;case 2:return u}if(r==0){r=Math.pow(2,s);s++}if(t[d]){o=t[d]}else{if(d===i){o=f+f.charAt(0)}else{return null}}u+=o;t[i++]=f+o.charAt(0);r--;f=o;if(r==0){r=Math.pow(2,s);s++}}}};if(typeof module!=="undefined"&&module!=null){module.exports=LZString}
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