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vditor

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♏ 易于使用的 Markdown 编辑器，为适配不同的应用场景而生

b3log.org/vditor

Vanessa219/vditor

1 lines • 290 kB
1
!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.Vditor=t():e.Vditor=t()}(this,(function(){return(()=>{var e={173:e=>{var t=function(){this.Diff_Timeout=1,this.Diff_EditCost=4,this.Match_Threshold=.5,this.Match_Distance=1e3,this.Patch_DeleteThreshold=.5,this.Patch_Margin=4,this.Match_MaxBits=32},n=-1;t.Diff=function(e,t){return[e,t]},t.prototype.diff_main=function(e,n,r,i){void 0===i&&(i=this.Diff_Timeout<=0?Number.MAX_VALUE:(new Date).getTime()+1e3*this.Diff_Timeout);var o=i;if(null==e||null==n)throw new Error("Null input. (diff_main)");if(e==n)return e?[new t.Diff(0,e)]:[];void 0===r&&(r=!0);var a=r,s=this.diff_commonPrefix(e,n),l=e.substring(0,s);e=e.substring(s),n=n.substring(s),s=this.diff_commonSuffix(e,n);var c=e.substring(e.length-s);e=e.substring(0,e.length-s),n=n.substring(0,n.length-s);var d=this.diff_compute_(e,n,a,o);return l&&d.unshift(new t.Diff(0,l)),c&&d.push(new t.Diff(0,c)),this.diff_cleanupMerge(d),d},t.prototype.diff_compute_=function(e,r,i,o){var a;if(!e)return[new t.Diff(1,r)];if(!r)return[new t.Diff(n,e)];var s=e.length>r.length?e:r,l=e.length>r.length?r:e,c=s.indexOf(l);if(-1!=c)return a=[new t.Diff(1,s.substring(0,c)),new t.Diff(0,l),new t.Diff(1,s.substring(c+l.length))],e.length>r.length&&(a[0][0]=a[2][0]=n),a;if(1==l.length)return[new t.Diff(n,e),new t.Diff(1,r)];var d=this.diff_halfMatch_(e,r);if(d){var u=d[0],p=d[1],m=d[2],f=d[3],h=d[4],v=this.diff_main(u,m,i,o),g=this.diff_main(p,f,i,o);return v.concat([new t.Diff(0,h)],g)}return i&&e.length>100&&r.length>100?this.diff_lineMode_(e,r,o):this.diff_bisect_(e,r,o)},t.prototype.diff_lineMode_=function(e,r,i){var o=this.diff_linesToChars_(e,r);e=o.chars1,r=o.chars2;var a=o.lineArray,s=this.diff_main(e,r,!1,i);this.diff_charsToLines_(s,a),this.diff_cleanupSemantic(s),s.push(new t.Diff(0,""));for(var l=0,c=0,d=0,u="",p="";l<s.length;){switch(s[l][0]){case 1:d++,p+=s[l][1];break;case n:c++,u+=s[l][1];break;case 0:if(c>=1&&d>=1){s.splice(l-c-d,c+d),l=l-c-d;for(var m=this.diff_main(u,p,!1,i),f=m.length-1;f>=0;f--)s.splice(l,0,m[f]);l+=m.length}d=0,c=0,u="",p=""}l++}return s.pop(),s},t.prototype.diff_bisect_=function(e,r,i){for(var o=e.length,a=r.length,s=Math.ceil((o+a)/2),l=s,c=2*s,d=new Array(c),u=new Array(c),p=0;p<c;p++)d[p]=-1,u[p]=-1;d[l+1]=0,u[l+1]=0;for(var m=o-a,f=m%2!=0,h=0,v=0,g=0,b=0,y=0;y<s&&!((new Date).getTime()>i);y++){for(var w=-y+h;w<=y-v;w+=2){for(var E=l+w,k=(M=w==-y||w!=y&&d[E-1]<d[E+1]?d[E+1]:d[E-1]+1)-w;M<o&&k<a&&e.charAt(M)==r.charAt(k);)M++,k++;if(d[E]=M,M>o)v+=2;else if(k>a)h+=2;else if(f){if((T=l+m-w)>=0&&T<c&&-1!=u[T])if(M>=(L=o-u[T]))return this.diff_bisectSplit_(e,r,M,k,i)}}for(var S=-y+g;S<=y-b;S+=2){for(var L,T=l+S,C=(L=S==-y||S!=y&&u[T-1]<u[T+1]?u[T+1]:u[T-1]+1)-S;L<o&&C<a&&e.charAt(o-L-1)==r.charAt(a-C-1);)L++,C++;if(u[T]=L,L>o)b+=2;else if(C>a)g+=2;else if(!f){if((E=l+m-S)>=0&&E<c&&-1!=d[E]){var M;k=l+(M=d[E])-E;if(M>=(L=o-L))return this.diff_bisectSplit_(e,r,M,k,i)}}}}return[new t.Diff(n,e),new t.Diff(1,r)]},t.prototype.diff_bisectSplit_=function(e,t,n,r,i){var o=e.substring(0,n),a=t.substring(0,r),s=e.substring(n),l=t.substring(r),c=this.diff_main(o,a,!1,i),d=this.diff_main(s,l,!1,i);return c.concat(d)},t.prototype.diff_linesToChars_=function(e,t){var n=[],r={};function i(e){for(var t="",i=0,a=-1,s=n.length;a<e.length-1;){-1==(a=e.indexOf("\n",i))&&(a=e.length-1);var l=e.substring(i,a+1);(r.hasOwnProperty?r.hasOwnProperty(l):void 0!==r[l])?t+=String.fromCharCode(r[l]):(s==o&&(l=e.substring(i),a=e.length),t+=String.fromCharCode(s),r[l]=s,n[s++]=l),i=a+1}return t}n[0]="";var o=4e4,a=i(e);return o=65535,{chars1:a,chars2:i(t),lineArray:n}},t.prototype.diff_charsToLines_=function(e,t){for(var n=0;n<e.length;n++){for(var r=e[n][1],i=[],o=0;o<r.length;o++)i[o]=t[r.charCodeAt(o)];e[n][1]=i.join("")}},t.prototype.diff_commonPrefix=function(e,t){if(!e||!t||e.charAt(0)!=t.charAt(0))return 0;for(var n=0,r=Math.min(e.length,t.length),i=r,o=0;n<i;)e.substring(o,i)==t.substring(o,i)?o=n=i:r=i,i=Math.floor((r-n)/2+n);return i},t.prototype.diff_commonSuffix=function(e,t){if(!e||!t||e.charAt(e.length-1)!=t.charAt(t.length-1))return 0;for(var n=0,r=Math.min(e.length,t.length),i=r,o=0;n<i;)e.substring(e.length-i,e.length-o)==t.substring(t.length-i,t.length-o)?o=n=i:r=i,i=Math.floor((r-n)/2+n);return i},t.prototype.diff_commonOverlap_=function(e,t){var n=e.length,r=t.length;if(0==n||0==r)return 0;n>r?e=e.substring(n-r):n<r&&(t=t.substring(0,n));var i=Math.min(n,r);if(e==t)return i;for(var o=0,a=1;;){var s=e.substring(i-a),l=t.indexOf(s);if(-1==l)return o;a+=l,0!=l&&e.substring(i-a)!=t.substring(0,a)||(o=a,a++)}},t.prototype.diff_halfMatch_=function(e,t){if(this.Diff_Timeout<=0)return null;var n=e.length>t.length?e:t,r=e.length>t.length?t:e;if(n.length<4||2*r.length<n.length)return null;var i=this;function o(e,t,n){for(var r,o,a,s,l=e.substring(n,n+Math.floor(e.length/4)),c=-1,d="";-1!=(c=t.indexOf(l,c+1));){var u=i.diff_commonPrefix(e.substring(n),t.substring(c)),p=i.diff_commonSuffix(e.substring(0,n),t.substring(0,c));d.length<p+u&&(d=t.substring(c-p,c)+t.substring(c,c+u),r=e.substring(0,n-p),o=e.substring(n+u),a=t.substring(0,c-p),s=t.substring(c+u))}return 2*d.length>=e.length?[r,o,a,s,d]:null}var a,s,l,c,d,u=o(n,r,Math.ceil(n.length/4)),p=o(n,r,Math.ceil(n.length/2));return u||p?(a=p?u&&u[4].length>p[4].length?u:p:u,e.length>t.length?(s=a[0],l=a[1],c=a[2],d=a[3]):(c=a[0],d=a[1],s=a[2],l=a[3]),[s,l,c,d,a[4]]):null},t.prototype.diff_cleanupSemantic=function(e){for(var r=!1,i=[],o=0,a=null,s=0,l=0,c=0,d=0,u=0;s<e.length;)0==e[s][0]?(i[o++]=s,l=d,c=u,d=0,u=0,a=e[s][1]):(1==e[s][0]?d+=e[s][1].length:u+=e[s][1].length,a&&a.length<=Math.max(l,c)&&a.length<=Math.max(d,u)&&(e.splice(i[o-1],0,new t.Diff(n,a)),e[i[o-1]+1][0]=1,o--,s=--o>0?i[o-1]:-1,l=0,c=0,d=0,u=0,a=null,r=!0)),s++;for(r&&this.diff_cleanupMerge(e),this.diff_cleanupSemanticLossless(e),s=1;s<e.length;){if(e[s-1][0]==n&&1==e[s][0]){var p=e[s-1][1],m=e[s][1],f=this.diff_commonOverlap_(p,m),h=this.diff_commonOverlap_(m,p);f>=h?(f>=p.length/2||f>=m.length/2)&&(e.splice(s,0,new t.Diff(0,m.substring(0,f))),e[s-1][1]=p.substring(0,p.length-f),e[s+1][1]=m.substring(f),s++):(h>=p.length/2||h>=m.length/2)&&(e.splice(s,0,new t.Diff(0,p.substring(0,h))),e[s-1][0]=1,e[s-1][1]=m.substring(0,m.length-h),e[s+1][0]=n,e[s+1][1]=p.substring(h),s++),s++}s++}},t.prototype.diff_cleanupSemanticLossless=function(e){function n(e,n){if(!e||!n)return 6;var r=e.charAt(e.length-1),i=n.charAt(0),o=r.match(t.nonAlphaNumericRegex_),a=i.match(t.nonAlphaNumericRegex_),s=o&&r.match(t.whitespaceRegex_),l=a&&i.match(t.whitespaceRegex_),c=s&&r.match(t.linebreakRegex_),d=l&&i.match(t.linebreakRegex_),u=c&&e.match(t.blanklineEndRegex_),p=d&&n.match(t.blanklineStartRegex_);return u||p?5:c||d?4:o&&!s&&l?3:s||l?2:o||a?1:0}for(var r=1;r<e.length-1;){if(0==e[r-1][0]&&0==e[r+1][0]){var i=e[r-1][1],o=e[r][1],a=e[r+1][1],s=this.diff_commonSuffix(i,o);if(s){var l=o.substring(o.length-s);i=i.substring(0,i.length-s),o=l+o.substring(0,o.length-s),a=l+a}for(var c=i,d=o,u=a,p=n(i,o)+n(o,a);o.charAt(0)===a.charAt(0);){i+=o.charAt(0),o=o.substring(1)+a.charAt(0),a=a.substring(1);var m=n(i,o)+n(o,a);m>=p&&(p=m,c=i,d=o,u=a)}e[r-1][1]!=c&&(c?e[r-1][1]=c:(e.splice(r-1,1),r--),e[r][1]=d,u?e[r+1][1]=u:(e.splice(r+1,1),r--))}r++}},t.nonAlphaNumericRegex_=/[^a-zA-Z0-9]/,t.whitespaceRegex_=/\s/,t.linebreakRegex_=/[\r\n]/,t.blanklineEndRegex_=/\n\r?\n$/,t.blanklineStartRegex_=/^\r?\n\r?\n/,t.prototype.diff_cleanupEfficiency=function(e){for(var r=!1,i=[],o=0,a=null,s=0,l=!1,c=!1,d=!1,u=!1;s<e.length;)0==e[s][0]?(e[s][1].length<this.Diff_EditCost&&(d||u)?(i[o++]=s,l=d,c=u,a=e[s][1]):(o=0,a=null),d=u=!1):(e[s][0]==n?u=!0:d=!0,a&&(l&&c&&d&&u||a.length<this.Diff_EditCost/2&&l+c+d+u==3)&&(e.splice(i[o-1],0,new t.Diff(n,a)),e[i[o-1]+1][0]=1,o--,a=null,l&&c?(d=u=!0,o=0):(s=--o>0?i[o-1]:-1,d=u=!1),r=!0)),s++;r&&this.diff_cleanupMerge(e)},t.prototype.diff_cleanupMerge=function(e){e.push(new t.Diff(0,""));for(var r,i=0,o=0,a=0,s="",l="";i<e.length;)switch(e[i][0]){case 1:a++,l+=e[i][1],i++;break;case n:o++,s+=e[i][1],i++;break;case 0:o+a>1?(0!==o&&0!==a&&(0!==(r=this.diff_commonPrefix(l,s))&&(i-o-a>0&&0==e[i-o-a-1][0]?e[i-o-a-1][1]+=l.substring(0,r):(e.splice(0,0,new t.Diff(0,l.substring(0,r))),i++),l=l.substring(r),s=s.substring(r)),0!==(r=this.diff_commonSuffix(l,s))&&(e[i][1]=l.substring(l.length-r)+e[i][1],l=l.substring(0,l.length-r),s=s.substring(0,s.length-r))),i-=o+a,e.splice(i,o+a),s.length&&(e.splice(i,0,new t.Diff(n,s)),i++),l.length&&(e.splice(i,0,new t.Diff(1,l)),i++),i++):0!==i&&0==e[i-1][0]?(e[i-1][1]+=e[i][1],e.splice(i,1)):i++,a=0,o=0,s="",l=""}""===e[e.length-1][1]&&e.pop();var c=!1;for(i=1;i<e.length-1;)0==e[i-1][0]&&0==e[i+1][0]&&(e[i][1].substring(e[i][1].length-e[i-1][1].length)==e[i-1][1]?(e[i][1]=e[i-1][1]+e[i][1].substring(0,e[i][1].length-e[i-1][1].length),e[i+1][1]=e[i-1][1]+e[i+1][1],e.splice(i-1,1),c=!0):e[i][1].substring(0,e[i+1][1].length)==e[i+1][1]&&(e[i-1][1]+=e[i+1][1],e[i][1]=e[i][1].substring(e[i+1][1].length)+e[i+1][1],e.splice(i+1,1),c=!0)),i++;c&&this.diff_cleanupMerge(e)},t.prototype.diff_xIndex=function(e,t){var r,i=0,o=0,a=0,s=0;for(r=0;r<e.length&&(1!==e[r][0]&&(i+=e[r][1].length),e[r][0]!==n&&(o+=e[r][1].length),!(i>t));r++)a=i,s=o;return e.length!=r&&e[r][0]===n?s:s+(t-a)},t.prototype.diff_prettyHtml=function(e){for(var t=[],r=/&/g,i=/</g,o=/>/g,a=/\n/g,s=0;s<e.length;s++){var l=e[s][0],c=e[s][1].replace(r,"&amp;").replace(i,"&lt;").replace(o,"&gt;").replace(a,"&para;<br>");switch(l){case 1:t[s]='<ins style="background:#e6ffe6;">'+c+"</ins>";break;case n:t[s]='<del style="background:#ffe6e6;">'+c+"</del>";break;case 0:t[s]="<span>"+c+"</span>"}}return t.join("")},t.prototype.diff_text1=function(e){for(var t=[],n=0;n<e.length;n++)1!==e[n][0]&&(t[n]=e[n][1]);return t.join("")},t.prototype.diff_text2=function(e){for(var t=[],r=0;r<e.length;r++)e[r][0]!==n&&(t[r]=e[r][1]);return t.join("")},t.prototype.diff_levenshtein=function(e){for(var t=0,r=0,i=0,o=0;o<e.length;o++){var a=e[o][0],s=e[o][1];switch(a){case 1:r+=s.length;break;case n:i+=s.length;break;case 0:t+=Math.max(r,i),r=0,i=0}}return t+=Math.max(r,i)},t.prototype.diff_toDelta=function(e){for(var t=[],r=0;r<e.length;r++)switch(e[r][0]){case 1:t[r]="+"+encodeURI(e[r][1]);break;case n:t[r]="-"+e[r][1].length;break;case 0:t[r]="="+e[r][1].length}return t.join("\t").replace(/%20/g," ")},t.prototype.diff_fromDelta=function(e,r){for(var i=[],o=0,a=0,s=r.split(/\t/g),l=0;l<s.length;l++){var c=s[l].substring(1);switch(s[l].charAt(0)){case"+":try{i[o++]=new t.Diff(1,decodeURI(c))}catch(e){throw new Error("Illegal escape in diff_fromDelta: "+c)}break;case"-":case"=":var d=parseInt(c,10);if(isNaN(d)||d<0)throw new Error("Invalid number in diff_fromDelta: "+c);var u=e.substring(a,a+=d);"="==s[l].charAt(0)?i[o++]=new t.Diff(0,u):i[o++]=new t.Diff(n,u);break;default:if(s[l])throw new Error("Invalid diff operation in diff_fromDelta: "+s[l])}}if(a!=e.length)throw new Error("Delta length ("+a+") does not equal source text length ("+e.length+").");return i},t.prototype.match_main=function(e,t,n){if(null==e||null==t||null==n)throw new Error("Null input. (match_main)");return n=Math.max(0,Math.min(n,e.length)),e==t?0:e.length?e.substring(n,n+t.length)==t?n:this.match_bitap_(e,t,n):-1},t.prototype.match_bitap_=function(e,t,n){if(t.length>this.Match_MaxBits)throw new Error("Pattern too long for this browser.");var r=this.match_alphabet_(t),i=this;function o(e,r){var o=e/t.length,a=Math.abs(n-r);return i.Match_Distance?o+a/i.Match_Distance:a?1:o}var a=this.Match_Threshold,s=e.indexOf(t,n);-1!=s&&(a=Math.min(o(0,s),a),-1!=(s=e.lastIndexOf(t,n+t.length))&&(a=Math.min(o(0,s),a)));var l,c,d=1<<t.length-1;s=-1;for(var u,p=t.length+e.length,m=0;m<t.length;m++){for(l=0,c=p;l<c;)o(m,n+c)<=a?l=c:p=c,c=Math.floor((p-l)/2+l);p=c;var f=Math.max(1,n-c+1),h=Math.min(n+c,e.length)+t.length,v=Array(h+2);v[h+1]=(1<<m)-1;for(var g=h;g>=f;g--){var b=r[e.charAt(g-1)];if(v[g]=0===m?(v[g+1]<<1|1)&b:(v[g+1]<<1|1)&b|(u[g+1]|u[g])<<1|1|u[g+1],v[g]&d){var y=o(m,g-1);if(y<=a){if(a=y,!((s=g-1)>n))break;f=Math.max(1,2*n-s)}}}if(o(m+1,n)>a)break;u=v}return s},t.prototype.match_alphabet_=function(e){for(var t={},n=0;n<e.length;n++)t[e.charAt(n)]=0;for(n=0;n<e.length;n++)t[e.charAt(n)]|=1<<e.length-n-1;return t},t.prototype.patch_addContext_=function(e,n){if(0!=n.length){if(null===e.start2)throw Error("patch not initialized");for(var r=n.substring(e.start2,e.start2+e.length1),i=0;n.indexOf(r)!=n.lastIndexOf(r)&&r.length<this.Match_MaxBits-this.Patch_Margin-this.Patch_Margin;)i+=this.Patch_Margin,r=n.substring(e.start2-i,e.start2+e.length1+i);i+=this.Patch_Margin;var o=n.substring(e.start2-i,e.start2);o&&e.diffs.unshift(new t.Diff(0,o));var a=n.substring(e.start2+e.length1,e.start2+e.length1+i);a&&e.diffs.push(new t.Diff(0,a)),e.start1-=o.length,e.start2-=o.length,e.length1+=o.length+a.length,e.length2+=o.length+a.length}},t.prototype.patch_make=function(e,r,i){var o,a;if("string"==typeof e&&"string"==typeof r&&void 0===i)o=e,(a=this.diff_main(o,r,!0)).length>2&&(this.diff_cleanupSemantic(a),this.diff_cleanupEfficiency(a));else if(e&&"object"==typeof e&&void 0===r&&void 0===i)a=e,o=this.diff_text1(a);else if("string"==typeof e&&r&&"object"==typeof r&&void 0===i)o=e,a=r;else{if("string"!=typeof e||"string"!=typeof r||!i||"object"!=typeof i)throw new Error("Unknown call format to patch_make.");o=e,a=i}if(0===a.length)return[];for(var s=[],l=new t.patch_obj,c=0,d=0,u=0,p=o,m=o,f=0;f<a.length;f++){var h=a[f][0],v=a[f][1];switch(c||0===h||(l.start1=d,l.start2=u),h){case 1:l.diffs[c++]=a[f],l.length2+=v.length,m=m.substring(0,u)+v+m.substring(u);break;case n:l.length1+=v.length,l.diffs[c++]=a[f],m=m.substring(0,u)+m.substring(u+v.length);break;case 0:v.length<=2*this.Patch_Margin&&c&&a.length!=f+1?(l.diffs[c++]=a[f],l.length1+=v.length,l.length2+=v.length):v.length>=2*this.Patch_Margin&&c&&(this.patch_addContext_(l,p),s.push(l),l=new t.patch_obj,c=0,p=m,d=u)}1!==h&&(d+=v.length),h!==n&&(u+=v.length)}return c&&(this.patch_addContext_(l,p),s.push(l)),s},t.prototype.patch_deepCopy=function(e){for(var n=[],r=0;r<e.length;r++){var i=e[r],o=new t.patch_obj;o.diffs=[];for(var a=0;a<i.diffs.length;a++)o.diffs[a]=new t.Diff(i.diffs[a][0],i.diffs[a][1]);o.start1=i.start1,o.start2=i.start2,o.length1=i.length1,o.length2=i.length2,n[r]=o}return n},t.prototype.patch_apply=function(e,t){if(0==e.length)return[t,[]];e=this.patch_deepCopy(e);var r=this.patch_addPadding(e);t=r+t+r,this.patch_splitMax(e);for(var i=0,o=[],a=0;a<e.length;a++){var s,l,c=e[a].start2+i,d=this.diff_text1(e[a].diffs),u=-1;if(d.length>this.Match_MaxBits?-1!=(s=this.match_main(t,d.substring(0,this.Match_MaxBits),c))&&(-1==(u=this.match_main(t,d.substring(d.length-this.Match_MaxBits),c+d.length-this.Match_MaxBits))||s>=u)&&(s=-1):s=this.match_main(t,d,c),-1==s)o[a]=!1,i-=e[a].length2-e[a].length1;else if(o[a]=!0,i=s-c,d==(l=-1==u?t.substring(s,s+d.length):t.substring(s,u+this.Match_MaxBits)))t=t.substring(0,s)+this.diff_text2(e[a].diffs)+t.substring(s+d.length);else{var 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