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h(this.from,this.to,this.mark)}map(e){let t=e.mapResult(this.from,1),r=e.mapResult(this.to,-1);return t.deleted&&r.deleted||t.pos>=r.pos?null:new d(t.pos,r.pos,this.mark)}merge(e){return e instanceof d&&e.mark.eq(this.mark)&&this.from<=e.to&&this.to>=e.from?new d(Math.min(this.from,e.from),Math.max(this.to,e.to),this.mark):null}toJSON(){return{stepType:"addMark",mark:this.mark.toJSON(),from:this.from,to:this.to}}static fromJSON(e,t){if("number"!=typeof t.from||"number"!=typeof t.to)throw RangeError("Invalid input for AddMarkStep.fromJSON");return new d(t.from,t.to,e.markFromJSON(t.mark))}}a.jsonID("addMark",d);class h extends a{constructor(e,t,r){super(),this.from=e,this.to=t,this.mark=r}apply(e){let t=e.slice(this.from,this.to),r=new n.p2(c(t.content,e=>e.mark(this.mark.removeFromSet(e.marks)),e),t.openStart,t.openEnd);return u.fromReplace(e,this.from,this.to,r)}invert(){return new d(this.from,this.to,this.mark)}map(e){let t=e.mapResult(this.from,1),r=e.mapResult(this.to,-1);return t.deleted&&r.deleted||t.pos>=r.pos?null:new h(t.pos,r.pos,this.mark)}merge(e){return e instanceof h&&e.mark.eq(this.mark)&&this.from<=e.to&&this.to>=e.from?new h(Math.min(this.from,e.from),Math.max(this.to,e.to),this.mark):null}toJSON(){return{stepType:"removeMark",mark:this.mark.toJSON(),from:this.from,to:this.to}}static fromJSON(e,t){if("number"!=typeof t.from||"number"!=typeof t.to)throw RangeError("Invalid input for RemoveMarkStep.fromJSON");return new h(t.from,t.to,e.markFromJSON(t.mark))}}a.jsonID("removeMark",h);class p extends a{constructor(e,t){super(),this.pos=e,this.mark=t}apply(e){let t=e.nodeAt(this.pos);if(!t)return u.fail("No node at mark step's position");let r=t.type.create(t.attrs,null,this.mark.addToSet(t.marks));return u.fromReplace(e,this.pos,this.pos+1,new n.p2(n.HY.from(r),0,+!t.isLeaf))}invert(e){let t=e.nodeAt(this.pos);if(t){let e=this.mark.addToSet(t.marks);if(e.length==t.marks.length){for(let r=0;r<t.marks.length;r++)if(!t.marks[r].isInSet(e))return new p(this.pos,t.marks[r]);return new p(this.pos,this.mark)}}return new f(this.pos,this.mark)}map(e){let t=e.mapResult(this.pos,1);return t.deletedAfter?null:new p(t.pos,this.mark)}toJSON(){return{stepType:"addNodeMark",pos:this.pos,mark:this.mark.toJSON()}}static fromJSON(e,t){if("number"!=typeof t.pos)throw RangeError("Invalid input for AddNodeMarkStep.fromJSON");return new p(t.pos,e.markFromJSON(t.mark))}}a.jsonID("addNodeMark",p);class f extends a{constructor(e,t){super(),this.pos=e,this.mark=t}apply(e){let t=e.nodeAt(this.pos);if(!t)return u.fail("No node at mark step's position");let r=t.type.create(t.attrs,null,this.mark.removeFromSet(t.marks));return u.fromReplace(e,this.pos,this.pos+1,new n.p2(n.HY.from(r),0,+!t.isLeaf))}invert(e){let t=e.nodeAt(this.pos);return t&&this.mark.isInSet(t.marks)?new p(this.pos,this.mark):this}map(e){let t=e.mapResult(this.pos,1);return t.deletedAfter?null:new f(t.pos,this.mark)}toJSON(){return{stepType:"removeNodeMark",pos:this.pos,mark:this.mark.toJSON()}}static fromJSON(e,t){if("number"!=typeof t.pos)throw RangeError("Invalid input for RemoveNodeMarkStep.fromJSON");return new f(t.pos,e.markFromJSON(t.mark))}}a.jsonID("removeNodeMark",f);class m extends a{constructor(e,t,r,n=!1){super(),this.from=e,this.to=t,this.slice=r,this.structure=n}apply(e){return this.structure&&v(e,this.from,this.to)?u.fail("Structure replace would overwrite content"):u.fromReplace(e,this.from,this.to,this.slice)}getMap(){return new l([this.from,this.to-this.from,this.slice.size])}invert(e){return new m(this.from,this.from+this.slice.size,e.slice(this.from,this.to))}map(e){let t=e.mapResult(this.from,1),r=e.mapResult(this.to,-1);return t.deletedAcross&&r.deletedAcross?null:new m(t.pos,Math.max(t.pos,r.pos),this.slice)}merge(e){if(!(e instanceof m)||e.structure||this.structure)return null;if(this.from+this.slice.size!=e.from||this.slice.openEnd||e.slice.openStart){if(e.to!=this.from||this.slice.openStart||e.slice.openEnd)return null;{let t=this.slice.size+e.slice.size==0?n.p2.empty:new n.p2(e.slice.content.append(this.slice.content),e.slice.openStart,this.slice.openEnd);return new m(e.from,this.to,t,this.structure)}}{let t=this.slice.size+e.slice.size==0?n.p2.empty:new n.p2(this.slice.content.append(e.slice.content),this.slice.openStart,e.slice.openEnd);return new m(this.from,this.to+(e.to-e.from),t,this.structure)}}toJSON(){let e={stepType:"replace",from:this.from,to:this.to};return this.slice.size&&(e.slice=this.slice.toJSON()),this.structure&&(e.structure=!0),e}static fromJSON(e,t){if("number"!=typeof t.from||"number"!=typeof t.to)throw RangeError("Invalid input for ReplaceStep.fromJSON");return new m(t.from,t.to,n.p2.fromJSON(e,t.slice),!!t.structure)}}a.jsonID("replace",m);class g extends a{constructor(e,t,r,n,i,l,o=!1){super(),this.from=e,this.to=t,this.gapFrom=r,this.gapTo=n,this.slice=i,this.insert=l,this.structure=o}apply(e){if(this.structure&&(v(e,this.from,this.gapFrom)||v(e,this.gapTo,this.to)))return u.fail("Structure gap-replace would overwrite content");let t=e.slice(this.gapFrom,this.gapTo);if(t.openStart||t.openEnd)return u.fail("Gap is not a flat range");let r=this.slice.insertAt(this.insert,t.content);return r?u.fromReplace(e,this.from,this.to,r):u.fail("Content does not fit in gap")}getMap(){return new l([this.from,this.gapFrom-this.from,this.insert,this.gapTo,this.to-this.gapTo,this.slice.size-this.insert])}invert(e){let t=this.gapTo-this.gapFrom;return new g(this.from,this.from+this.slice.size+t,this.from+this.insert,this.from+this.insert+t,e.slice(this.from,this.to).removeBetween(this.gapFrom-this.from,this.gapTo-this.from),this.gapFrom-this.from,this.structure)}map(e){let t=e.mapResult(this.from,1),r=e.mapResult(this.to,-1),n=this.from==this.gapFrom?t.pos:e.map(this.gapFrom,-1),i=this.to==this.gapTo?r.pos:e.map(this.gapTo,1);return t.deletedAcross&&r.deletedAcross||n<t.pos||i>r.pos?null:new g(t.pos,r.pos,n,i,this.slice,this.insert,this.structure)}toJSON(){let e={stepType:"replaceAround",from:this.from,to:this.to,gapFrom:this.gapFrom,gapTo:this.gapTo,insert:this.insert};return this.slice.size&&(e.slice=this.slice.toJSON()),this.structure&&(e.structure=!0),e}static fromJSON(e,t){if("number"!=typeof t.from||"number"!=typeof t.to||"number"!=typeof t.gapFrom||"number"!=typeof t.gapTo||"number"!=typeof t.insert)throw RangeError("Invalid input for ReplaceAroundStep.fromJSON");return new g(t.from,t.to,t.gapFrom,t.gapTo,n.p2.fromJSON(e,t.slice),t.insert,!!t.structure)}}function v(e,t,r){let n=e.resolve(t),i=r-t,l=n.depth;for(;i>0&&l>0&&n.indexAfter(l)==n.node(l).childCount;)l--,i--;if(i>0){let e=n.node(l).maybeChild(n.indexAfter(l));for(;i>0;){if(!e||e.isLeaf)return!0;e=e.firstChild,i--}}return!1}function y(e,t,r,i=r.contentMatch,l=!0){let o=e.doc.nodeAt(t),s=[],a=t+1;for(let t=0;t<o.childCount;t++){let u=o.child(t),c=a+u.nodeSize,d=i.matchType(u.type);if(d){i=d;for(let t=0;t<u.marks.length;t++)r.allowsMarkType(u.marks[t].type)||e.step(new h(a,c,u.marks[t]));if(l&&u.isText&&"pre"!=r.whitespace){let e,t=/\r?\n|\r/g,i;for(;e=t.exec(u.text);)i||(i=new n.p2(n.HY.from(r.schema.text(" ",r.allowedMarks(u.marks))),0,0)),s.push(new m(a+e.index,a+e.index+e[0].length,i))}}else s.push(new m(a,c,n.p2.empty));a=c}if(!i.validEnd){let t=i.fillBefore(n.HY.empty,!0);e.replace(a,a,new n.p2(t,0,0))}for(let t=s.length-1;t>=0;t--)e.step(s[t])}function b(e){let t=e.parent.content.cutByIndex(e.startIndex,e.endIndex);for(let r=e.depth;;--r){let n=e.$from.node(r),i=e.$from.index(r),l=e.$to.indexAfter(r);if(r<e.depth&&n.canReplace(i,l,t))return r;if(0==r||n.type.spec.isolating||!((0==i||n.canReplace(i,n.childCount))&&(l==n.childCount||n.canReplace(0,l))))break}return null}function w(e,t,r=null,n=e){let i=function(e,t){let{parent:r,startIndex:n,endIndex:i}=e,l=r.contentMatchAt(n).findWrapping(t);if(!l)return null;let o=l.length?l[0]:t;return r.canReplaceWith(n,i,o)?l:null}(e,t),l=i&&function(e,t){let{parent:r,startIndex:n,endIndex:i}=e,l=r.child(n),o=t.contentMatch.findWrapping(l.type);if(!o)return null;let s=(o.length?o[o.length-1]:t).contentMatch;for(let e=n;s&&e<i;e++)s=s.matchType(r.child(e).type);return s&&s.validEnd?o:null}(n,t);return l?i.map(x).concat({type:t,attrs:r}).concat(l.map(x)):null}function x(e){return{type:e,attrs:null}}function k(e,t,r=1,n){let i=e.resolve(t),l=i.depth-r,o=n&&n[n.length-1]||i.parent;if(l<0||i.parent.type.spec.isolating||!i.parent.canReplace(i.index(),i.parent.childCount)||!o.type.validContent(i.parent.content.cutByIndex(i.index(),i.parent.childCount)))return!1;for(let 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