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/node_modules/@codemirror/search/dist/index.js","webpack://frontend/./node_modules/@codemirror/state/dist/index.js","webpack://frontend/./node_modules/@codemirror/text/dist/index.js"],"sourcesContent":["import { ViewPlugin, PluginField, EditorView } from '@codemirror/view';\nimport { Facet } from '@codemirror/state';\n\nconst panelConfig = /*@__PURE__*/Facet.define({\n    combine(configs) {\n        let topContainer, bottomContainer;\n        for (let c of configs) {\n            topContainer = topContainer || c.topContainer;\n            bottomContainer = bottomContainer || c.bottomContainer;\n        }\n        return { topContainer, bottomContainer };\n    }\n});\n/**\nConfigures the panel-managing extension.\n*/\nfunction panels(config) {\n    return config ? [panelConfig.of(config)] : [];\n}\n/**\nGet the active panel created by the given constructor, if any.\nThis can be useful when you need access to your panels' DOM\nstructure.\n*/\nfunction getPanel(view, panel) {\n    let plugin = view.plugin(panelPlugin);\n    let index = plugin ? plugin.specs.indexOf(panel) : -1;\n    return index > -1 ? plugin.panels[index] : null;\n}\nconst panelPlugin = /*@__PURE__*/ViewPlugin.fromClass(class {\n    constructor(view) {\n        this.input = view.state.facet(showPanel);\n        this.specs = this.input.filter(s => s);\n        this.panels = this.specs.map(spec => spec(view));\n        let conf = view.state.facet(panelConfig);\n        this.top = new PanelGroup(view, true, conf.topContainer);\n        this.bottom = new PanelGroup(view, false, conf.bottomContainer);\n        this.top.sync(this.panels.filter(p => p.top));\n        this.bottom.sync(this.panels.filter(p => !p.top));\n        for (let p of this.panels) {\n            p.dom.classList.add(\"cm-panel\");\n            // FIXME drop on next breaking release\n            if (p.class)\n                p.dom.classList.add(p.class);\n            if (p.mount)\n                p.mount();\n        }\n    }\n    update(update) {\n        let conf = update.state.facet(panelConfig);\n        if (this.top.container != conf.topContainer) {\n            this.top.sync([]);\n            this.top = new PanelGroup(update.view, true, conf.topContainer);\n        }\n        if (this.bottom.container != conf.bottomContainer) {\n            this.bottom.sync([]);\n            this.bottom = new PanelGroup(update.view, false, conf.bottomContainer);\n        }\n        this.top.syncClasses();\n        this.bottom.syncClasses();\n        let input = update.state.facet(showPanel);\n        if (input != this.input) {\n            let specs = input.filter(x => x);\n            let panels = [], top = [], bottom = [], mount = [];\n            for (let spec of specs) {\n                let known = this.specs.indexOf(spec), panel;\n                if (known < 0) {\n                    panel = spec(update.view);\n                    mount.push(panel);\n                }\n                else {\n                    panel = this.panels[known];\n                    if (panel.update)\n                        panel.update(update);\n                }\n                panels.push(panel);\n                (panel.top ? top : bottom).push(panel);\n            }\n            this.specs = specs;\n            this.panels = panels;\n            this.top.sync(top);\n            this.bottom.sync(bottom);\n            for (let p of mount) {\n                p.dom.classList.add(\"cm-panel\");\n                // FIXME drop on next breaking release\n                if (p.class)\n                    p.dom.classList.add(p.class);\n                if (p.mount)\n                    p.mount();\n            }\n        }\n        else {\n            for (let p of this.panels)\n                if (p.update)\n                    p.update(update);\n        }\n    }\n    destroy() {\n        this.top.sync([]);\n        this.bottom.sync([]);\n    }\n}, {\n    provide: /*@__PURE__*/PluginField.scrollMargins.from(value => ({ top: value.top.scrollMargin(), bottom: value.bottom.scrollMargin() }))\n});\nclass PanelGroup {\n    constructor(view, top, container) {\n        this.view = view;\n        this.top = top;\n        this.container = container;\n        this.dom = undefined;\n        this.classes = \"\";\n        this.panels = [];\n        this.syncClasses();\n    }\n    sync(panels) {\n        this.panels = panels;\n        this.syncDOM();\n    }\n    syncDOM() {\n        if (this.panels.length == 0) {\n            if (this.dom) {\n                this.dom.remove();\n                this.dom = undefined;\n            }\n            return;\n        }\n        if (!this.dom) {\n            this.dom = document.createElement(\"div\");\n            this.dom.className = this.top ? \"cm-panels cm-panels-top\" : \"cm-panels cm-panels-bottom\";\n            this.dom.style[this.top ? \"top\" : \"bottom\"] = \"0\";\n            let parent = this.container || this.view.dom;\n            parent.insertBefore(this.dom, this.top ? parent.firstChild : null);\n        }\n        let curDOM = this.dom.firstChild;\n        for (let panel of this.panels) {\n            if (panel.dom.parentNode == this.dom) {\n                while (curDOM != panel.dom)\n                    curDOM = rm(curDOM);\n                curDOM = curDOM.nextSibling;\n            }\n            else {\n                this.dom.insertBefore(panel.dom, curDOM);\n            }\n        }\n        while (curDOM)\n            curDOM = rm(curDOM);\n    }\n    scrollMargin() {\n        return !this.dom || this.container ? 0\n            : Math.max(0, this.top ?\n                this.dom.getBoundingClientRect().bottom - Math.max(0, this.view.scrollDOM.getBoundingClientRect().top) :\n                Math.min(innerHeight, this.view.scrollDOM.getBoundingClientRect().bottom) - this.dom.getBoundingClientRect().top);\n    }\n    syncClasses() {\n        if (!this.container || this.classes == this.view.themeClasses)\n            return;\n        for (let cls of this.classes.split(\" \"))\n            if (cls)\n                this.container.classList.remove(cls);\n        for (let cls of (this.classes = this.view.themeClasses).split(\" \"))\n            if (cls)\n                this.container.classList.add(cls);\n    }\n}\nfunction rm(node) {\n    let next = node.nextSibling;\n    node.remove();\n    return next;\n}\nconst baseTheme = /*@__PURE__*/EditorView.baseTheme({\n    \".cm-panels\": {\n        boxSizing: \"border-box\",\n        position: \"sticky\",\n        left: 0,\n        right: 0\n    },\n    \"&light .cm-panels\": {\n        backgroundColor: \"#f5f5f5\",\n        color: \"black\"\n    },\n    \"&light .cm-panels-top\": {\n        borderBottom: \"1px solid #ddd\"\n    },\n    \"&light .cm-panels-bottom\": {\n        borderTop: \"1px solid #ddd\"\n    },\n    \"&dark .cm-panels\": {\n        backgroundColor: \"#333338\",\n        color: \"white\"\n    }\n});\n/**\nOpening a panel is done by providing a constructor function for\nthe panel through this facet. (The panel is closed again when its\nconstructor is no longer provided.) Values of `null` are ignored.\n*/\nconst showPanel = /*@__PURE__*/Facet.define({\n    enables: [panelPlugin, baseTheme]\n});\n\nexport { getPanel, panels, showPanel };\n","import { MapMode } from '@codemirror/state';\n\n/**\nEach range is associated with a value, which must inherit from\nthis class.\n*/\nclass RangeValue {\n    /**\n    Compare this value with another value. The default\n    implementation compares by identity.\n    */\n    eq(other) { return this == other; }\n    /**\n    Create a [range](https://codemirror.net/6/docs/ref/#rangeset.Range) with this value.\n    */\n    range(from, to = from) { return new Range(from, to, this); }\n}\nRangeValue.prototype.startSide = RangeValue.prototype.endSide = 0;\nRangeValue.prototype.point = false;\nRangeValue.prototype.mapMode = MapMode.TrackDel;\n/**\nA range associates a value with a range of positions.\n*/\nclass Range {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The range's start position.\n    */\n    from, \n    /**\n    Its end position.\n    */\n    to, \n    /**\n    The value associated with this range.\n    */\n    value) {\n        this.from = from;\n        this.to = to;\n        this.value = value;\n    }\n}\nfunction cmpRange(a, b) {\n    return a.from - b.from || a.value.startSide - b.value.startSide;\n}\nclass Chunk {\n    constructor(from, to, value, \n    // Chunks are marked with the largest point that occurs\n    // in them (or -1 for no points), so that scans that are\n    // only interested in points (such as the\n    // heightmap-related logic) can skip range-only chunks.\n    maxPoint) {\n        this.from = from;\n        this.to = to;\n        this.value = value;\n        this.maxPoint = maxPoint;\n    }\n    get length() { return this.to[this.to.length - 1]; }\n    // Find the index of the given position and side. Use the ranges'\n    // `from` pos when `end == false`, `to` when `end == true`.\n    findIndex(pos, side, end, startAt = 0) {\n        let arr = end ? this.to : this.from;\n        for (let lo = startAt, hi = arr.length;;) {\n            if (lo == hi)\n                return lo;\n            let mid = (lo + hi) >> 1;\n            let diff = arr[mid] - pos || (end ? this.value[mid].endSide : this.value[mid].startSide) - side;\n            if (mid == lo)\n                return diff >= 0 ? lo : hi;\n            if (diff >= 0)\n                hi = mid;\n            else\n                lo = mid + 1;\n        }\n    }\n    between(offset, from, to, f) {\n        for (let i = this.findIndex(from, -1000000000 /* Far */, true), e = this.findIndex(to, 1000000000 /* Far */, false, i); i < e; i++)\n            if (f(this.from[i] + offset, this.to[i] + offset, this.value[i]) === false)\n                return false;\n    }\n    map(offset, changes) {\n        let value = [], from = [], to = [], newPos = -1, maxPoint = -1;\n        for (let i = 0; i < this.value.length; i++) {\n            let val = this.value[i], curFrom = this.from[i] + offset, curTo = this.to[i] + offset, newFrom, newTo;\n            if (curFrom == curTo) {\n                let mapped = changes.mapPos(curFrom, val.startSide, val.mapMode);\n                if (mapped == null)\n                    continue;\n                newFrom = newTo = mapped;\n            }\n            else {\n                newFrom = changes.mapPos(curFrom, val.startSide);\n                newTo = changes.mapPos(curTo, val.endSide);\n                if (newFrom > newTo || newFrom == newTo && val.startSide > 0 && val.endSide <= 0)\n                    continue;\n            }\n            if ((newTo - newFrom || val.endSide - val.startSide) < 0)\n                continue;\n            if (newPos < 0)\n                newPos = newFrom;\n            if (val.point)\n                maxPoint = Math.max(maxPoint, newTo - newFrom);\n            value.push(val);\n            from.push(newFrom - newPos);\n            to.push(newTo - newPos);\n        }\n        return { mapped: value.length ? new Chunk(from, to, value, maxPoint) : null, pos: newPos };\n    }\n}\n/**\nA range set stores a collection of [ranges](https://codemirror.net/6/docs/ref/#rangeset.Range) in a\nway that makes them efficient to [map](https://codemirror.net/6/docs/ref/#rangeset.RangeSet.map) and\n[update](https://codemirror.net/6/docs/ref/#rangeset.RangeSet.update). This is an immutable data\nstructure.\n*/\nclass RangeSet {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    @internal\n    */\n    chunkPos, \n    /**\n    @internal\n    */\n    chunk, \n    /**\n    @internal\n    */\n    nextLayer = RangeSet.empty, \n    /**\n    @internal\n    */\n    maxPoint) {\n        this.chunkPos = chunkPos;\n        this.chunk = chunk;\n        this.nextLayer = nextLayer;\n        this.maxPoint = maxPoint;\n    }\n    /**\n    @internal\n    */\n    get length() {\n        let last = this.chunk.length - 1;\n        return last < 0 ? 0 : Math.max(this.chunkEnd(last), this.nextLayer.length);\n    }\n    /**\n    The number of ranges in the set.\n    */\n    get size() {\n        if (this.isEmpty)\n            return 0;\n        let size = this.nextLayer.size;\n        for (let chunk of this.chunk)\n            size += chunk.value.length;\n        return size;\n    }\n    /**\n    @internal\n    */\n    chunkEnd(index) {\n        return this.chunkPos[index] + this.chunk[index].length;\n    }\n    /**\n    Update the range set, optionally adding new ranges or filtering\n    out existing ones.\n    \n    (The extra type parameter is just there as a kludge to work\n    around TypeScript variance issues that prevented `RangeSet<X>`\n    from being a subtype of `RangeSet<Y>` when `X` is a subtype of\n    `Y`.)\n    */\n    update(updateSpec) {\n        let { add = [], sort = false, filterFrom = 0, filterTo = this.length } = updateSpec;\n        let filter = updateSpec.filter;\n        if (add.length == 0 && !filter)\n            return this;\n        if (sort)\n            add.slice().sort(cmpRange);\n        if (this.isEmpty)\n            return add.length ? RangeSet.of(add) : this;\n        let cur = new LayerCursor(this, null, -1).goto(0), i = 0, spill = [];\n        let builder = new RangeSetBuilder();\n        while (cur.value || i < add.length) {\n            if (i < add.length && (cur.from - add[i].from || cur.startSide - add[i].value.startSide) >= 0) {\n                let range = add[i++];\n                if (!builder.addInner(range.from, range.to, range.value))\n                    spill.push(range);\n            }\n            else if (cur.rangeIndex == 1 && cur.chunkIndex < this.chunk.length &&\n                (i == add.length || this.chunkEnd(cur.chunkIndex) < add[i].from) &&\n                (!filter || filterFrom > this.chunkEnd(cur.chunkIndex) || filterTo < this.chunkPos[cur.chunkIndex]) &&\n                builder.addChunk(this.chunkPos[cur.chunkIndex], this.chunk[cur.chunkIndex])) {\n                cur.nextChunk();\n            }\n            else {\n                if (!filter || filterFrom > cur.to || filterTo < cur.from || filter(cur.from, cur.to, cur.value)) {\n                    if (!builder.addInner(cur.from, cur.to, cur.value))\n                        spill.push(new Range(cur.from, cur.to, cur.value));\n                }\n                cur.next();\n            }\n        }\n        return builder.finishInner(this.nextLayer.isEmpty && !spill.length ? RangeSet.empty\n            : this.nextLayer.update({ add: spill, filter, filterFrom, filterTo }));\n    }\n    /**\n    Map this range set through a set of changes, return the new set.\n    */\n    map(changes) {\n        if (changes.length == 0 || this.isEmpty)\n            return this;\n        let chunks = [], chunkPos = [], maxPoint = -1;\n        for (let i = 0; i < this.chunk.length; i++) {\n            let start = this.chunkPos[i], chunk = this.chunk[i];\n            let touch = changes.touchesRange(start, start + chunk.length);\n            if (touch === false) {\n                maxPoint = Math.max(maxPoint, chunk.maxPoint);\n                chunks.push(chunk);\n                chunkPos.push(changes.mapPos(start));\n            }\n            else if (touch === true) {\n                let { mapped, pos } = chunk.map(start, changes);\n                if (mapped) {\n                    maxPoint = Math.max(maxPoint, mapped.maxPoint);\n                    chunks.push(mapped);\n                    chunkPos.push(pos);\n                }\n            }\n        }\n        let next = this.nextLayer.map(changes);\n        return chunks.length == 0 ? next : new RangeSet(chunkPos, chunks, next, maxPoint);\n    }\n    /**\n    Iterate over the ranges that touch the region `from` to `to`,\n    calling `f` for each. There is no guarantee that the ranges will\n    be reported in any specific order. When the callback returns\n    `false`, iteration stops.\n    */\n    between(from, to, f) {\n        if (this.isEmpty)\n            return;\n        for (let i = 0; i < this.chunk.length; i++) {\n            let start = this.chunkPos[i], chunk = this.chunk[i];\n            if (to >= start && from <= start + chunk.length &&\n                chunk.between(start, from - start, to - start, f) === false)\n                return;\n        }\n        this.nextLayer.between(from, to, f);\n    }\n    /**\n    Iterate over the ranges in this set, in order, including all\n    ranges that end at or after `from`.\n    */\n    iter(from = 0) {\n        return HeapCursor.from([this]).goto(from);\n    }\n    /**\n    @internal\n    */\n    get isEmpty() { return this.nextLayer == this; }\n    /**\n    Iterate over the ranges in a collection of sets, in order,\n    starting from `from`.\n    */\n    static iter(sets, from = 0) {\n        return HeapCursor.from(sets).goto(from);\n    }\n    /**\n    Iterate over two groups of sets, calling methods on `comparator`\n    to notify it of possible differences.\n    */\n    static compare(oldSets, newSets, \n    /**\n    This indicates how the underlying data changed between these\n    ranges, and is needed to synchronize the iteration. `from` and\n    `to` are coordinates in the _new_ space, after these changes.\n    */\n    textDiff, comparator, \n    /**\n    Can be used to ignore all non-point ranges, and points below\n    the given size. When -1, all ranges are compared.\n    */\n    minPointSize = -1) {\n        let a = oldSets.filter(set => set.maxPoint >= 500 /* BigPointSize */ ||\n            !set.isEmpty && newSets.indexOf(set) < 0 && set.maxPoint >= minPointSize);\n        let b = newSets.filter(set => set.maxPoint >= 500 /* BigPointSize */ ||\n            !set.isEmpty && oldSets.indexOf(set) < 0 && set.maxPoint >= minPointSize);\n        let sharedChunks = findSharedChunks(a, b);\n        let sideA = new SpanCursor(a, sharedChunks, minPointSize);\n        let sideB = new SpanCursor(b, sharedChunks, minPointSize);\n        textDiff.iterGaps((fromA, fromB, length) => compare(sideA, fromA, sideB, fromB, length, comparator));\n        if (textDiff.empty && textDiff.length == 0)\n            compare(sideA, 0, sideB, 0, 0, comparator);\n    }\n    /**\n    Compare the contents of two groups of range sets, returning true\n    if they are equivalent in the given range.\n    */\n    static eq(oldSets, newSets, from = 0, to) {\n        if (to == null)\n            to = 1000000000 /* Far */;\n        let a = oldSets.filter(set => !set.isEmpty && newSets.indexOf(set) < 0);\n        let b = newSets.filter(set => !set.isEmpty && oldSets.indexOf(set) < 0);\n        if (a.length != b.length)\n            return false;\n        if (!a.length)\n            return true;\n        let sharedChunks = findSharedChunks(a, b);\n        let sideA = new SpanCursor(a, sharedChunks, 0).goto(from), sideB = new SpanCursor(b, sharedChunks, 0).goto(from);\n        for (;;) {\n            if (sideA.to != sideB.to ||\n                !sameValues(sideA.active, sideB.active) ||\n                sideA.point && (!sideB.point || !sideA.point.eq(sideB.point)))\n                return false;\n            if (sideA.to >= to)\n                return true;\n            sideA.next();\n            sideB.next();\n        }\n    }\n    /**\n    Iterate over a group of range sets at the same time, notifying\n    the iterator about the ranges covering every given piece of\n    content. Returns the open count (see\n    [`SpanIterator.span`](https://codemirror.net/6/docs/ref/#rangeset.SpanIterator.span)) at the end\n    of the iteration.\n    */\n    static spans(sets, from, to, iterator, \n    /**\n    When given and greater than -1, only points of at least this\n    size are taken into account.\n    */\n    minPointSize = -1) {\n        let cursor = new SpanCursor(sets, null, minPointSize).goto(from), pos = from;\n        let open = cursor.openStart;\n        for (;;) {\n            let curTo = Math.min(cursor.to, to);\n            if (cursor.point) {\n                iterator.point(pos, curTo, cursor.point, cursor.activeForPoint(cursor.to), open);\n                open = cursor.openEnd(curTo) + (cursor.to > curTo ? 1 : 0);\n            }\n            else if (curTo > pos) {\n                iterator.span(pos, curTo, cursor.active, open);\n                open = cursor.openEnd(curTo);\n            }\n            if (cursor.to > to)\n                break;\n            pos = cursor.to;\n            cursor.next();\n        }\n        return open;\n    }\n    /**\n    Create a range set for the given range or array of ranges. By\n    default, this expects the ranges to be _sorted_ (by start\n    position and, if two start at the same position,\n    `value.startSide`). You can pass `true` as second argument to\n    cause the method to sort them.\n    */\n    static of(ranges, sort = false) {\n        let build = new RangeSetBuilder();\n        for (let range of ranges instanceof Range ? [ranges] : sort ? lazySort(ranges) : ranges)\n            build.add(range.from, range.to, range.value);\n        return build.finish();\n    }\n}\n/**\nThe empty set of ranges.\n*/\nRangeSet.empty = /*@__PURE__*/new RangeSet([], [], null, -1);\nfunction lazySort(ranges) {\n    if (ranges.length > 1)\n        for (let prev = ranges[0], i = 1; i < ranges.length; i++) {\n            let cur = ranges[i];\n            if (cmpRange(prev, cur) > 0)\n                return ranges.slice().sort(cmpRange);\n            prev = cur;\n        }\n    return ranges;\n}\nRangeSet.empty.nextLayer = RangeSet.empty;\n/**\nA range set builder is a data structure that helps build up a\n[range set](https://codemirror.net/6/docs/ref/#rangeset.RangeSet) directly, without first allocating\nan array of [`Range`](https://codemirror.net/6/docs/ref/#rangeset.Range) objects.\n*/\nclass RangeSetBuilder {\n    /**\n    Create an empty builder.\n    */\n    constructor() {\n        this.chunks = [];\n        this.chunkPos = [];\n        this.chunkStart = -1;\n        this.last = null;\n        this.lastFrom = -1000000000 /* Far */;\n        this.lastTo = -1000000000 /* Far */;\n        this.from = [];\n        this.to = [];\n        this.value = [];\n        this.maxPoint = -1;\n        this.setMaxPoint = -1;\n        this.nextLayer = null;\n    }\n    finishChunk(newArrays) {\n        this.chunks.push(new Chunk(this.from, this.to, this.value, this.maxPoint));\n        this.chunkPos.push(this.chunkStart);\n        this.chunkStart = -1;\n        this.setMaxPoint = Math.max(this.setMaxPoint, this.maxPoint);\n        this.maxPoint = -1;\n        if (newArrays) {\n            this.from = [];\n            this.to = [];\n            this.value = [];\n        }\n    }\n    /**\n    Add a range. Ranges should be added in sorted (by `from` and\n    `value.startSide`) order.\n    */\n    add(from, to, value) {\n        if (!this.addInner(from, to, value))\n            (this.nextLayer || (this.nextLayer = new RangeSetBuilder)).add(from, to, value);\n    }\n    /**\n    @internal\n    */\n    addInner(from, to, value) {\n        let diff = from - this.lastTo || value.startSide - this.last.endSide;\n        if (diff <= 0 && (from - this.lastFrom || value.startSide - this.last.startSide) < 0)\n            throw new Error(\"Ranges must be added sorted by `from` position and `startSide`\");\n        if (diff < 0)\n            return false;\n        if (this.from.length == 250 /* ChunkSize */)\n            this.finishChunk(true);\n        if (this.chunkStart < 0)\n            this.chunkStart = from;\n        this.from.push(from - this.chunkStart);\n        this.to.push(to - this.chunkStart);\n        this.last = value;\n        this.lastFrom = from;\n        this.lastTo = to;\n        this.value.push(value);\n        if (value.point)\n            this.maxPoint = Math.max(this.maxPoint, to - from);\n        return true;\n    }\n    /**\n    @internal\n    */\n    addChunk(from, chunk) {\n        if ((from - this.lastTo || chunk.value[0].startSide - this.last.endSide) < 0)\n            return false;\n        if (this.from.length)\n            this.finishChunk(true);\n        this.setMaxPoint = Math.max(this.setMaxPoint, chunk.maxPoint);\n        this.chunks.push(chunk);\n        this.chunkPos.push(from);\n        let last = chunk.value.length - 1;\n        this.last = chunk.value[last];\n        this.lastFrom = chunk.from[last] + from;\n        this.lastTo = chunk.to[last] + from;\n        return true;\n    }\n    /**\n    Finish the range set. Returns the new set. The builder can't be\n    used anymore after this has been called.\n    */\n    finish() { return this.finishInner(RangeSet.empty); }\n    /**\n    @internal\n    */\n    finishInner(next) {\n        if (this.from.length)\n            this.finishChunk(false);\n        if (this.chunks.length == 0)\n            return next;\n        let result = new RangeSet(this.chunkPos, this.chunks, this.nextLayer ? this.nextLayer.finishInner(next) : next, this.setMaxPoint);\n        this.from = null; // Make sure further `add` calls produce errors\n        return result;\n    }\n}\nfunction findSharedChunks(a, b) {\n    let inA = new Map();\n    for (let set of a)\n        for (let i = 0; i < set.chunk.length; i++)\n            if (set.chunk[i].maxPoint < 500 /* BigPointSize */)\n                inA.set(set.chunk[i], set.chunkPos[i]);\n    let shared = new Set();\n    for (let set of b)\n        for (let i = 0; i < set.chunk.length; i++)\n            if (inA.get(set.chunk[i]) == set.chunkPos[i])\n                shared.add(set.chunk[i]);\n    return shared;\n}\nclass LayerCursor {\n    constructor(layer, skip, minPoint, rank = 0) {\n        this.layer = layer;\n        this.skip = skip;\n        this.minPoint = minPoint;\n        this.rank = rank;\n    }\n    get startSide() { return this.value ? this.value.startSide : 0; }\n    get endSide() { return this.value ? this.value.endSide : 0; }\n    goto(pos, side = -1000000000 /* Far */) {\n        this.chunkIndex = this.rangeIndex = 0;\n        this.gotoInner(pos, side, false);\n        return this;\n    }\n    gotoInner(pos, side, forward) {\n        while (this.chunkIndex < this.layer.chunk.length) {\n            let next = this.layer.chunk[this.chunkIndex];\n            if (!(this.skip && this.skip.has(next) ||\n                this.layer.chunkEnd(this.chunkIndex) < pos ||\n                next.maxPoint < this.minPoint))\n                break;\n            this.chunkIndex++;\n            forward = false;\n        }\n        let rangeIndex = this.chunkIndex == this.layer.chunk.length ? 0\n            : this.layer.chunk[this.chunkIndex].findIndex(pos - this.layer.chunkPos[this.chunkIndex], side, true);\n        if (!forward || this.rangeIndex < rangeIndex)\n            this.rangeIndex = rangeIndex;\n        this.next();\n    }\n    forward(pos, side) {\n        if ((this.to - pos || this.endSide - side) < 0)\n            this.gotoInner(pos, side, true);\n    }\n    next() {\n        for (;;) {\n            if (this.chunkIndex == this.layer.chunk.length) {\n                this.from = this.to = 1000000000 /* Far */;\n                this.value = null;\n                break;\n            }\n            else {\n                let chunkPos = this.layer.chunkPos[this.chunkIndex], chunk = this.layer.chunk[this.chunkIndex];\n                let from = chunkPos + chunk.from[this.rangeIndex];\n                this.from = from;\n                this.to = chunkPos + chunk.to[this.rangeIndex];\n                this.value = chunk.value[this.rangeIndex];\n                if (++this.rangeIndex == chunk.value.length) {\n                    this.chunkIndex++;\n                    if (this.skip) {\n                        while (this.chunkIndex < this.layer.chunk.length && this.skip.has(this.layer.chunk[this.chunkIndex]))\n                            this.chunkIndex++;\n                    }\n                    this.rangeIndex = 0;\n                }\n                if (this.minPoint < 0 || this.value.point && this.to - this.from >= this.minPoint)\n                    break;\n            }\n        }\n    }\n    nextChunk() {\n        this.chunkIndex++;\n        this.rangeIndex = 0;\n        this.next();\n    }\n    compare(other) {\n        return this.from - other.from || this.startSide - other.startSide || this.to - other.to || this.endSide - other.endSide;\n    }\n}\nclass HeapCursor {\n    constructor(heap) {\n        this.heap = heap;\n    }\n    static from(sets, skip = null, minPoint = -1) {\n        let heap = [];\n        for (let i = 0; i < sets.length; i++) {\n            for (let cur = sets[i]; !cur.isEmpty; cur = cur.nextLayer) {\n                if (cur.maxPoint >= minPoint)\n                    heap.push(new LayerCursor(cur, skip, minPoint, i));\n            }\n        }\n        return heap.length == 1 ? heap[0] : new HeapCursor(heap);\n    }\n    get startSide() { return this.value ? this.value.startSide : 0; }\n    goto(pos, side = -1000000000 /* Far */) {\n        for (let cur of this.heap)\n            cur.goto(pos, side);\n        for (let i = this.heap.length >> 1; i >= 0; i--)\n            heapBubble(this.heap, i);\n        this.next();\n        return this;\n    }\n    forward(pos, side) {\n        for (let cur of this.heap)\n            cur.forward(pos, side);\n        for (let i = this.heap.length >> 1; i >= 0; i--)\n            heapBubble(this.heap, i);\n        if ((this.to - pos || this.value.endSide - side) < 0)\n            this.next();\n    }\n    next() {\n        if (this.heap.length == 0) {\n            this.from = this.to = 1000000000 /* Far */;\n            this.value = null;\n            this.rank = -1;\n        }\n        else {\n            let top = this.heap[0];\n            this.from = top.from;\n            this.to = top.to;\n            this.value = top.value;\n            this.rank = top.rank;\n            if (top.value)\n                top.next();\n            heapBubble(this.heap, 0);\n        }\n    }\n}\nfunction heapBubble(heap, index) {\n    for (let cur = heap[index];;) {\n        let childIndex = (index << 1) + 1;\n        if (childIndex >= heap.length)\n            break;\n        let child = heap[childIndex];\n        if (childIndex + 1 < heap.length && child.compare(heap[childIndex + 1]) >= 0) {\n            child = heap[childIndex + 1];\n            childIndex++;\n        }\n        if (cur.compare(child) < 0)\n            break;\n        heap[childIndex] = cur;\n        heap[index] = child;\n        index = childIndex;\n    }\n}\nclass SpanCursor {\n    constructor(sets, skip, minPoint) {\n        this.minPoint = minPoint;\n        this.active = [];\n        this.activeTo = [];\n        this.activeRank = [];\n        this.minActive = -1;\n        // A currently active point range, if any\n        this.point = null;\n        this.pointFrom = 0;\n        this.pointRank = 0;\n        this.to = -1000000000 /* Far */;\n        this.endSide = 0;\n        this.openStart = -1;\n        this.cursor = HeapCursor.from(sets, skip, minPoint);\n    }\n    goto(pos, side = -1000000000 /* Far */) {\n        this.cursor.goto(pos, side);\n        this.active.length = this.activeTo.length = this.activeRank.length = 0;\n        this.minActive = -1;\n        this.to = pos;\n        this.endSide = side;\n        this.openStart = -1;\n        this.next();\n        return this;\n    }\n    forward(pos, side) {\n        while (this.minActive > -1 && (this.activeTo[this.minActive] - pos || this.active[this.minActive].endSide - side) < 0)\n            this.removeActive(this.minActive);\n        this.cursor.forward(pos, side);\n    }\n    removeActive(index) {\n        remove(this.active, index);\n        remove(this.activeTo, index);\n        remove(this.activeRank, index);\n        this.minActive = findMinIndex(this.active, this.activeTo);\n    }\n    addActive(trackOpen) {\n        let i = 0, { value, to, rank } = this.cursor;\n        while (i < this.activeRank.length && this.activeRank[i] <= rank)\n            i++;\n        insert(this.active, i, value);\n        insert(this.activeTo, i, to);\n        insert(this.activeRank, i, rank);\n        if (trackOpen)\n            insert(trackOpen, i, this.cursor.from);\n        this.minActive = findMinIndex(this.active, this.activeTo);\n    }\n    // After calling this, if `this.point` != null, the next range is a\n    // point. Otherwise, it's a regular range, covered by `this.active`.\n    next() {\n        let from = this.to, wasPoint = this.point;\n        this.point = null;\n        let trackOpen = this.openStart < 0 ? [] : null, trackExtra = 0;\n        for (;;) {\n            let a = this.minActive;\n            if (a > -1 && (this.activeTo[a] - this.cursor.from || this.active[a].endSide - this.cursor.startSide) < 0) {\n                if (this.activeTo[a] > from) {\n                    this.to = this.activeTo[a];\n                    this.endSide = this.active[a].endSide;\n                    break;\n                }\n                this.removeActive(a);\n                if (trackOpen)\n                    remove(trackOpen, a);\n            }\n            else if (!this.cursor.value) {\n                this.to = this.endSide = 1000000000 /* Far */;\n                break;\n            }\n            else if (this.cursor.from > from) {\n                this.to = this.cursor.from;\n                this.endSide = this.cursor.startSide;\n                break;\n            }\n            else {\n                let nextVal = this.cursor.value;\n                if (!nextVal.point) { // Opening a range\n                    this.addActive(trackOpen);\n                    this.cursor.next();\n                }\n                else if (wasPoint && this.cursor.to == this.to && this.cursor.from < this.cursor.to && nextVal.endSide == this.endSide) {\n                    // Ignore any non-empty points that end precisely at the end of the prev point\n                    this.cursor.next();\n                }\n                else { // New point\n                    this.point = nextVal;\n                    this.pointFrom = this.cursor.from;\n                    this.pointRank = this.cursor.rank;\n                    this.to = this.cursor.to;\n                    this.endSide = nextVal.endSide;\n                    if (this.cursor.from < from)\n                        trackExtra = 1;\n                    this.cursor.next();\n                    if (this.to > from)\n                        this.forward(this.to, this.endSide);\n                    break;\n                }\n            }\n        }\n        if (trackOpen) {\n            let openStart = 0;\n            while (openStart < trackOpen.length && trackOpen[openStart] < from)\n                openStart++;\n            this.openStart = openStart + trackExtra;\n        }\n    }\n    activeForPoint(to) {\n        if (!this.active.length)\n            return this.active;\n        let active = [];\n        for (let i = this.active.length - 1; i >= 0; i--) {\n            if (this.activeRank[i] < this.pointRank)\n                break;\n            if (this.activeTo[i] > to || this.activeTo[i] == to && this.active[i].endSide >= this.point.endSide)\n                active.push(this.active[i]);\n        }\n        return active.reverse();\n    }\n    openEnd(to) {\n        let open = 0;\n        for (let i = this.activeTo.length - 1; i >= 0 && this.activeTo[i] > to; i--)\n            open++;\n        return open;\n    }\n}\nfunction compare(a, startA, b, startB, length, comparator) {\n    a.goto(startA);\n    b.goto(startB);\n    let endB = startB + length;\n    let pos = startB, dPos = startB - startA;\n    for (;;) {\n        let diff = (a.to + dPos) - b.to || a.endSide - b.endSide;\n        let end = diff < 0 ? a.to + dPos : b.to, clipEnd = Math.min(end, endB);\n        if (a.point || b.point) {\n            if (!(a.point && b.point && (a.point == b.point || a.point.eq(b.point)) &&\n                sameValues(a.activeForPoint(a.to + dPos), b.activeForPoint(b.to))))\n                comparator.comparePoint(pos, clipEnd, a.point, b.point);\n        }\n        else {\n            if (clipEnd > pos && !sameValues(a.active, b.active))\n                comparator.compareRange(pos, clipEnd, a.active, b.active);\n        }\n        if (end > endB)\n            break;\n        pos = end;\n        if (diff <= 0)\n            a.next();\n        if (diff >= 0)\n            b.next();\n    }\n}\nfunction sameValues(a, b) {\n    if (a.length != b.length)\n        return false;\n    for (let i = 0; i < a.length; i++)\n        if (a[i] != b[i] && !a[i].eq(b[i]))\n            return false;\n    return true;\n}\nfunction remove(array, index) {\n    for (let i = index, e = array.length - 1; i < e; i++)\n        array[i] = array[i + 1];\n    array.pop();\n}\nfunction insert(array, index, value) {\n    for (let i = array.length - 1; i >= index; i--)\n        array[i + 1] = array[i];\n    array[index] = value;\n}\nfunction findMinIndex(value, array) {\n    let found = -1, foundPos = 1000000000 /* Far */;\n    for (let i = 0; i < array.length; i++)\n        if ((array[i] - foundPos || value[i].endSide - value[found].endSide) < 0) {\n            found = i;\n            foundPos = array[i];\n        }\n    return found;\n}\n\nexport { Range, RangeSet, RangeSetBuilder, RangeValue };\n","import { EditorSelection } from '@codemirror/state';\nimport { EditorView } from '@codemirror/view';\nimport { findColumn, countColumn } from '@codemirror/text';\n\n// Don't compute precise column positions for line offsets above this\n// (since it could get expensive). Assume offset==column for them.\nconst MaxOff = 2000;\nfunction rectangleFor(state, a, b) {\n    let startLine = Math.min(a.line, b.line), endLine = Math.max(a.line, b.line);\n    let ranges = [];\n    if (a.off > MaxOff || b.off > MaxOff || a.col < 0 || b.col < 0) {\n        let startOff = Math.min(a.off, b.off), endOff = Math.max(a.off, b.off);\n        for (let i = startLine; i <= endLine; i++) {\n            let line = state.doc.line(i);\n            if (line.length <= endOff)\n                ranges.push(EditorSelection.range(line.from + startOff, line.to + endOff));\n        }\n    }\n    else {\n        let startCol = Math.min(a.col, b.col), endCol = Math.max(a.col, b.col);\n        for (let i = startLine; i <= endLine; i++) {\n            let line = state.doc.line(i);\n            let start = findColumn(line.text, startCol, state.tabSize), end = findColumn(line.text, endCol, state.tabSize);\n            if (start < end)\n                ranges.push(EditorSelection.range(line.from + start, line.from + end));\n        }\n    }\n    return ranges;\n}\nfunction absoluteColumn(view, x) {\n    let ref = view.coordsAtPos(view.viewport.from);\n    return ref ? Math.round(Math.abs((ref.left - x) / view.defaultCharacterWidth)) : -1;\n}\nfunction getPos(view, event) {\n    let offset = view.posAtCoords({ x: event.clientX, y: event.clientY }, false);\n    let line = view.state.doc.lineAt(offset), off = offset - line.from;\n    let col = off > MaxOff ? -1\n        : off == line.length ? absoluteColumn(view, event.clientX)\n            : countColumn(line.text.slice(0, offset - line.from), 0, view.state.tabSize);\n    return { line: line.number, col, off };\n}\nfunction rectangleSelectionStyle(view, event) {\n    let start = getPos(view, event), startSel = view.state.selection;\n    if (!start)\n        return null;\n    return {\n        update(update) {\n            if (update.docChanged) {\n                let newStart = update.changes.mapPos(update.startState.doc.line(start.line).from);\n                let newLine = update.state.doc.lineAt(newStart);\n                start = { line: newLine.number, col: start.col, off: Math.min(start.off, newLine.length) };\n                startSel = startSel.map(update.changes);\n            }\n        },\n        get(event, _extend, multiple) {\n            let cur = getPos(view, event);\n            if (!cur)\n                return startSel;\n            let ranges = rectangleFor(view.state, start, cur);\n            if (!ranges.length)\n                return startSel;\n            if (multiple)\n                return EditorSelection.create(ranges.concat(startSel.ranges));\n            else\n                return EditorSelection.create(ranges);\n        }\n    };\n}\n/**\nCreate an extension that enables rectangular selections. By\ndefault, it will react to left mouse drag with the Alt key held\ndown. When such a selection occurs, the text within the rectangle\nthat was dragged over will be selected, as one selection\n[range](https://codemirror.net/6/docs/ref/#state.SelectionRange) per line.\n*/\nfunction rectangularSelection(options) {\n    let filter = (options === null || options === void 0 ? void 0 : options.eventFilter) || (e => e.altKey && e.button == 0);\n    return EditorView.mouseSelectionStyle.of((view, event) => filter(event) ? rectangleSelectionStyle(view, event) : null);\n}\n\nexport { rectangularSelection };\n","import { EditorView, Decoration, ViewPlugin, runScopeHandlers } from '@codemirror/view';\nimport { StateEffect, StateField, EditorSelection, Facet, combineConfig, CharCategory, Prec } from '@codemirror/state';\nimport { showPanel, getPanel } from '@codemirror/panel';\nimport { RangeSetBuilder } from '@codemirror/rangeset';\nimport elt from 'crelt';\nimport { codePointAt, fromCodePoint, codePointSize } from '@codemirror/text';\n\nconst basicNormalize = typeof String.prototype.normalize == \"function\"\n    ? x => x.normalize(\"NFKD\") : x => x;\n/**\nA search cursor provides an iterator over text matches in a\ndocument.\n*/\nclass SearchCursor {\n    /**\n    Create a text cursor. The query is the search string, `from` to\n    `to` provides the region to search.\n    \n    When `normalize` is given, it will be called, on both the query\n    string and the content it is matched against, before comparing.\n    You can, for example, create a case-insensitive search by\n    passing `s => s.toLowerCase()`.\n    \n    Text is always normalized with\n    [`.normalize(\"NFKD\")`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize)\n    (when supported).\n    */\n    constructor(text, query, from = 0, to = text.length, normalize) {\n        /**\n        The current match (only holds a meaningful value after\n        [`next`](https://codemirror.net/6/docs/ref/#search.SearchCursor.next) has been called and when\n        `done` is false).\n        */\n        this.value = { from: 0, to: 0 };\n        /**\n        Whether the end of the iterated region has been reached.\n        */\n        this.done = false;\n        this.matches = [];\n        this.buffer = \"\";\n        this.bufferPos = 0;\n        this.iter = text.iterRange(from, to);\n        this.bufferStart = from;\n        this.normalize = normalize ? x => normalize(basicNormalize(x)) : basicNormalize;\n        this.query = this.normalize(query);\n    }\n    peek() {\n        if (this.bufferPos == this.buffer.length) {\n            this.bufferStart += this.buffer.length;\n            this.iter.next();\n            if (this.iter.done)\n                return -1;\n            this.bufferPos = 0;\n            this.buffer = this.iter.value;\n        }\n        return codePointAt(this.buffer, this.bufferPos);\n    }\n    /**\n    Look for the next match. Updates the iterator's\n    [`value`](https://codemirror.net/6/docs/ref/#search.SearchCursor.value) and\n    [`done`](https://codemirror.net/6/docs/ref/#search.SearchCursor.done) properties. Should be called\n    at least once before using the cursor.\n    */\n    next() {\n        while (this.matches.length)\n            this.matches.pop();\n        return this.nextOverlapping();\n    }\n    /**\n    The `next` method will ignore matches that partially overlap a\n    previous match. This method behaves like `next`, but includes\n    such matches.\n    */\n    nextOverlapping() {\n        for (;;) {\n            let next = this.peek();\n            if (next < 0) {\n                this.done = true;\n                return this;\n            }\n            let str = fromCodePoint(next), start = this.bufferStart + this.bufferPos;\n            this.bufferPos += codePointSize(next);\n            let norm = this.normalize(str);\n            for (let i = 0, pos = start;; i++) {\n                let code = norm.charCodeAt(i);\n                let match = this.match(code, pos);\n                if (match) {\n                    this.value = match;\n                    return this;\n                }\n                if (i == norm.length - 1)\n                    break;\n                if (pos == start && i < str.length && str.charCodeAt(i) == code)\n                    pos++;\n            }\n        }\n    }\n    match(code, pos) {\n        let match = null;\n        for (let i = 0; i < this.matches.length; i += 2) {\n            let index = this.matches[i], keep = false;\n            if (this.query.charCodeAt(index) == code) {\n                if (index == this.query.length - 1) {\n                    match = { from: this.matches[i + 1], to: pos + 1 };\n                }\n                else {\n                    this.matches[i]++;\n                    keep = true;\n                }\n            }\n            if (!keep) {\n                this.matches.splice(i, 2);\n                i -= 2;\n            }\n        }\n        if (this.query.charCodeAt(0) == code) {\n            if (this.query.length == 1)\n                match = { from: pos, to: pos + 1 };\n            else\n                this.matches.push(1, pos);\n        }\n        return match;\n    }\n}\n\nconst empty = { from: -1, to: -1, match: /*@__PURE__*//.*/.exec(\"\") };\nconst baseFlags = \"gm\" + (/x/.unicode == null ? \"\" : \"u\");\n/**\nThis class is similar to [`SearchCursor`](https://codemirror.net/6/docs/ref/#search.SearchCursor)\nbut searches for a regular expression pattern instead of a plain\nstring.\n*/\nclass RegExpCursor {\n    /**\n    Create a cursor that will search the given range in the given\n    document. `query` should be the raw pattern (as you'd pass it to\n    `new RegExp`).\n    */\n    constructor(text, query, options, from = 0, to = text.length) {\n        this.to = to;\n        this.curLine = \"\";\n        /**\n        Set to `true` when the cursor has reached the end of the search\n        range.\n        */\n        this.done = false;\n        /**\n        Will contain an object with the extent of the match and the\n        match object when [`next`](https://codemirror.net/6/docs/ref/#search.RegExpCursor.next)\n        sucessfully finds a match.\n        */\n        this.value = empty;\n        if (/\\\\[sWDnr]|\\n|\\r|\\[\\^/.test(query))\n            return new MultilineRegExpCursor(text, query, options, from, to);\n        this.re = new RegExp(query, baseFlags + ((options === null || options === void 0 ? void 0 : options.ignoreCase) ? \"i\" : \"\"));\n        this.iter = text.iter();\n        let startLine = text.lineAt(from);\n        this.curLineStart = startLine.from;\n        this.matchPos = from;\n        this.getLine(this.curLineStart);\n    }\n    getLine(skip) {\n        this.iter.next(skip);\n        if (this.iter.lineBreak) {\n            this.curLine = \"\";\n        }\n        else {\n            this.curLine = this.iter.value;\n            if (this.curLineStart + this.curLine.length > this.to)\n                this.curLine = this.curLine.slice(0, this.to - this.curLineStart);\n            this.iter.next();\n        }\n    }\n    nextLine() {\n        this.curLineStart = this.curLineStart + this.curLine.length + 1;\n        if (this.curLineStart > this.to)\n            this.curLine = \"\";\n        else\n            this.getLine(0);\n    }\n    /**\n    Move to the next match, if there is one.\n    */\n    next() {\n        for (let off = this.matchPos - this.curLineStart;;) {\n            this.re.lastIndex = off;\n            let match = this.matchPos <= this.to && this.re.exec(this.curLine);\n            if (match) {\n                let from = this.curLineStart + match.index, to = from + match[0].length;\n                this.matchPos = to + (from == to ? 1 : 0);\n                if (from == this.curLine.length)\n                    this.nextLine();\n                if (from < to || from > this.value.to) {\n                    this.value = { from, to, match };\n                    return this;\n                }\n                off = this.matchPos - this.curLineStart;\n            }\n            else if (this.curLineStart + this.curLine.length < this.to) {\n                this.nextLine();\n                off = 0;\n            }\n            else {\n                this.done = true;\n                return this;\n            }\n        }\n    }\n}\nconst flattened = /*@__PURE__*/new WeakMap();\n// Reusable (partially) flattened document strings\nclass FlattenedDoc {\n    constructor(from, text) {\n        this.from = from;\n        this.text = text;\n    }\n    get to() { return this.from + this.text.length; }\n    static get(doc, from, to) {\n        let cached = flattened.get(doc);\n        if (!cached || cached.from >= to || cached.to <= from) {\n            let flat = new FlattenedDoc(from, doc.sliceString(from, to));\n            flattened.set(doc, flat);\n            return flat;\n        }\n        if (cached.from == from && cached.to == to)\n            return cached;\n        let { text, from: cachedFrom } = cached;\n        if (cachedFrom > from) {\n            text = doc.sliceString(from, cachedFrom) + text;\n            cachedFrom = from;\n        }\n        if (cached.to < to)\n            text += doc.sliceString(cached.to, to);\n        flattened.set(doc, new FlattenedDoc(cachedFrom, text));\n        return new FlattenedDoc(from, text.slice(from - cachedFrom, to - cachedFrom));\n    }\n}\nclass MultilineRegExpCursor {\n    constructor(text, query, options, from, to) {\n        this.text = text;\n        this.to = to;\n        this.done = false;\n        this.value = empty;\n        this.matchPos = from;\n        this.re = new RegExp(query, baseFlags + ((options === null || options === void 0 ? void 0 : options.ignoreCase) ? \"i\" : \"\"));\n        this.flat = FlattenedDoc.get(text, from, this.chunkEnd(from + 5000 /* Base */));\n    }\n    chunkEnd(pos) {\n        return pos >= this.to ? this.to : this.text.lineAt(pos).to;\n    }\n    next() {\n        for (;;) {\n            let off = this.re.lastIndex = this.matchPos - this.flat.from;\n            let match = this.re.exec(this.flat.text);\n            // Skip empty matches directly after the last match\n            if (match && !match[0] && match.index == off) {\n                this.re.lastIndex = off + 1;\n                match = this.re.exec(this.flat.text);\n            }\n            // If a match goes almost to the end of a noncomplete chunk, try\n            // again, since it'll likely be able to match more\n            if (match && this.flat.to < this.to && match.index + match[0].length > this.flat.text.length - 10)\n                match = null;\n            if (match) {\n                let from = this.flat.from + match.index, to = from + match[0].length;\n                this.value = { from, to, match };\n                this.matchPos = to + (from == to ? 1 : 0);\n                return this;\n            }\n            else {\n                if (this.flat.to == this.to) {\n                    this.done = true;\n                    return this;\n                }\n                // Grow the flattened doc\n                this.flat = FlattenedDoc.get(this.text, this.flat.from, this.chunkEnd(this.flat.from + this.flat.text.length * 2));\n            }\n        }\n    }\n}\nfunction validRegExp(source) {\n    try {\n        new RegExp(source, baseFlags);\n        return true;\n    }\n    catch (_a) {\n        return false;\n    }\n}\n\nfunction createLineDialog(view) {\n    let input = elt(\"input\", { class: \"cm-textfield\", name: \"line\" });\n    let dom = elt(\"form\", {\n        class: \"cm-gotoLine\",\n        onkeydown: (event) => {\n            if (event.keyCode == 27) { // Escape\n                event.preventDefault();\n                view.dispatch({ effects: dialogEffect.of(false) });\n                view.focus();\n            }\n            else if (event.keyCode == 13) { // Enter\n                event.preventDefault();\n                go();\n            }\n        },\n        onsubmit: (event) => {\n            event.preventDefault();\n            go();\n        }\n    }, elt(\"label\", view.state.phrase(\"Go to line\"), \": \", input), \" \", elt(\"button\", { class: \"cm-button\", type: \"submit\" }, view.state.phrase(\"go\")));\n    function go() {\n        let match = /^([+-])?(\\d+)?(:\\d+)?(%)?$/.exec(input.value);\n        if (!match)\n            return;\n        let { state } = view, startLine = state.doc.lineAt(state.selection.main.head);\n        let [, sign, ln, cl, percent] = match;\n        let col = cl ? +cl.slice(1) : 0;\n        let line = ln ? +ln : startLine.number;\n        if (ln && percent) {\n            let pc = line / 100;\n            if (sign)\n                pc = pc * (sign == \"-\" ? -1 : 1) + (startLine.number / state.doc.lines);\n            line = Math.round(state.doc.lines * pc);\n        }\n        else if (ln && sign) {\n            line = line * (sign == \"-\" ? -1 : 1) + startLine.number;\n        }\n        let docLine = state.doc.line(Math.max(1, Math.min(state.doc.lines, line)));\n        view.dispatch({\n            effects: dialogEffect.of(false),\n            selection: EditorSelection.cursor(docLine.from + Math.max(0, Math.min(col, docLine.length))),\n            scrollIntoView: true\n        });\n        view.focus();\n    }\n    return { dom, pos: -10 };\n}\nconst dialogEffect = /*@__PURE__*/StateEffect.define();\nconst dialogField = /*@__PURE__*/StateField.define({\n    create() { return true; },\n    update(value, tr) {\n        for (let e of tr.effects)\n            if (e.is(dialogEffect))\n                value = e.value;\n        return value;\n    },\n    provide: f => showPanel.from(f, val => val ? createLineDialog : null)\n});\n/**\nCommand that shows a dialog asking the user for a line number, and\nwhen a valid position is provided, moves the cursor to that line.\n\nSupports line numbers, relative line offsets prefixed with `+` or\n`-`, document percentages suffixed with `%`, and an optional\ncolumn position by adding `:` and a second number after the line\nnumber.\n\nThe dialog can be styled with the `panel.gotoLine` theme\nselector.\n*/\nconst gotoLine = view => {\n    let panel = getPanel(view, createLineDialog);\n    if (!panel) {\n        let effects = [dialogEffect.of(true)];\n        if (view.state.field(dialogField, false) == null)\n            effects.push(StateEffect.appendConfig.of([dialogField, baseTheme$1]));\n        view.dispatch({ effects });\n        panel = getPanel(view, createLineDialog);\n    }\n    if (panel)\n        panel.dom.querySelector(\"input\").focus();\n    return true;\n};\nconst baseTheme$1 = /*@__PURE__*/EditorView.baseTheme({\n    \".cm-panel.cm-gotoLine\": {\n        padding: \"2px 6px 4px\",\n        \"& label\": { fontSize: \"80%\" }\n    }\n});\n\nconst defaultHighlightOptions = {\n    highlightWordAroundCursor: false,\n    minSelectionLength: 1,\n    maxMatches: 100\n};\nconst highlightConfig = /*@__PURE__*/Facet.define({\n    combine(options) {\n        return combineConfig(options, defaultHighlightOptions, {\n            highlightWordAroundCursor: (a, b) => a || b,\n            minSelectionLength: Math.min,\n            maxMatches: Math.min\n        });\n    }\n});\n/**\nThis extension highlights text that matches the selection. It uses\nthe `\"cm-selectionMatch\"` class for the highlighting. When\n`highlightWordAroundCursor` is enabled, the word at the cursor\nitself will be highlighted with `\"cm-selectionMatch-main\"`.\n*/\nfunction highlightSelectionMatches(options) {\n    let ext = [defaultTheme, matchHighlighter];\n    if (options)\n        ext.push(highlightConfig.of(options));\n    return ext;\n}\nconst matchDeco = /*@__PURE__*/Decoration.mark({ class: \"cm-selectionMatch\" });\nconst mainMatchDeco = /*@__PURE__*/Decoration.mark({ class: \"cm-selectionMatch cm-selectionMatch-main\" });\nconst matchHighlighter = /*@__PURE__*/ViewPlugin.fromClass(class {\n    constructor(view) {\n        this.decorations = this.getDeco(view);\n    }\n    update(update) {\n        if (update.selectionSet || update.docChanged || update.viewportChanged)\n            this.decorations = this.getDeco(update.view);\n    }\n    getDeco(view) {\n        let conf = view.state.facet(highlightConfig);\n        let { state } = view, sel = state.selection;\n        if (sel.ranges.length > 1)\n            return Decoration.none;\n        let range = sel.main, query, check = null;\n        if (range.empty) {\n            if (!conf.highlightWordAroundCursor)\n                return Decoration.none;\n            let word = state.wordAt(range.head);\n            if (!word)\n                return Decoration.none;\n            check = state.charCategorizer(range.head);\n            query = state.sliceDoc(word.from, word.to);\n        }\n        else {\n            let len = range.to - range.from;\n            if (len < conf.minSelectionLength || len > 200)\n                return Decoration.none;\n            query = state.sliceDoc(range.from, range.to).trim();\n            if (!query)\n                return Decoration.none;\n        }\n        let deco = [];\n        for (let part of view.visibleRanges) {\n            let cursor = new SearchCursor(state.doc, query, part.from, part.to);\n            while (!cursor.nextOverlapping().done) {\n                let { from, to } = cursor.value;\n                if (!check || ((from == 0 || check(state.sliceDoc(from - 1, from)) != CharCategory.Word) &&\n                    (to == state.doc.length || check(state.sliceDoc(to, to + 1)) != CharCategory.Word))) {\n                    if (check && from <= range.from && to >= range.to)\n                        deco.push(mainMatchDeco.range(from, to));\n                    else if (from >= range.to || to <= range.from)\n                        deco.push(matchDeco.range(from, to));\n                    if (deco.length > conf.maxMatches)\n                        return Decoration.none;\n                }\n            }\n        }\n        return Decoration.set(deco);\n    }\n}, {\n    decorations: v => v.decorations\n});\nconst defaultTheme = /*@__PURE__*/EditorView.baseTheme({\n    \".cm-selectionMatch\": { backgroundColor: \"#99ff7780\" },\n    \".cm-searchMatch .cm-selectionMatch\": { backgroundColor: \"transparent\" }\n});\n// Select the words around the cursors.\nconst selectWord = ({ state, dispatch }) => {\n    let { selection } = state;\n    let newSel = EditorSelection.create(selection.ranges.map(range => state.wordAt(range.head) || EditorSelection.cursor(range.head)), selection.mainIndex);\n    if (newSel.eq(selection))\n        return false;\n    dispatch(state.update({ selection: newSel }));\n    return true;\n};\n// Find next occurrence of query relative to last cursor. Wrap around\n// the document if there are no more matches.\nfunction findNextOccurrence(state, query) {\n    let { ranges } = state.selection;\n    let ahead = new SearchCursor(state.doc, query, ranges[ranges.length - 1].to).next();\n    if (!ahead.done)\n        return ahead.value;\n    let cursor = new SearchCursor(state.doc, query, 0, Math.max(0, ranges[ranges.length - 1].from - 1));\n    while (!cursor.next().done) {\n        if (!ranges.some(r => r.from === cursor.value.from))\n            return cursor.value;\n    }\n    return null;\n}\n/**\nSelect next occurrence of the current selection.\nExpand selection to the word when selection range is empty.\n*/\nconst selectNextOccurrence = ({ state, dispatch }) => {\n    let { ranges } = state.selection;\n    if (ranges.some(sel => sel.from === sel.to))\n        return selectWord({ state, dispatch });\n    let searchedText = state.sliceDoc(ranges[0].from, ranges[0].to);\n    if (state.selection.ranges.some(r => state.sliceDoc(r.from, r.to) != searchedText))\n        return false;\n    let range = findNextOccurrence(state, searchedText);\n    if (!range)\n        return false;\n    dispatch(state.update({\n        selection: state.selection.addRange(EditorSelection.range(range.from, range.to)),\n        scrollIntoView: true\n    }));\n    return true;\n};\n\nconst searchConfigFacet = /*@__PURE__*/Facet.define({\n    combine(configs) {\n        return { top: configs.some(c => c.top) };\n    }\n});\n/**\nConfigure the behavior of the search extension.\n*/\nfunction searchConfig(config) {\n    return searchConfigFacet.of(config);\n}\nclass Query {\n    constructor(search, replace, caseInsensitive) {\n        this.search = search;\n        this.replace = replace;\n        this.caseInsensitive = caseInsensitive;\n    }\n    eq(other) {\n        return this.search == other.search && this.replace == other.replace &&\n            this.caseInsensitive == other.caseInsensitive && this.constructor == other.constructor;\n    }\n}\nclass StringQuery extends Query {\n    constructor(search, replace, caseInsensitive) {\n        super(search, replace, caseInsensitive);\n        this.unquoted = search.replace(/\\\\([nrt\\\\])/g, (_, ch) => ch == \"n\" ? \"\\n\" : ch == \"r\" ? \"\\r\" : ch == \"t\" ? \"\\t\" : \"\\\\\");\n    }\n    cursor(doc, from = 0, to = doc.length) {\n        return new SearchCursor(doc, this.unquoted, from, to, this.caseInsensitive ? x => x.toLowerCase() : undefined);\n    }\n    nextMatch(doc, curFrom, curTo) {\n        let cursor = this.cursor(doc, curTo).nextOverlapping();\n        if (cursor.done)\n            cursor = this.cursor(doc, 0, curFrom).nextOverlapping();\n        return cursor.done ? null : cursor.value;\n    }\n    // Searching in reverse is, rather than implementing inverted search\n    // cursor, done by scanning chunk after chunk forward.\n    prevMatchInRange(doc, from, to) {\n        for (let pos = to;;) {\n            let start = Math.max(from, pos - 10000 /* ChunkSize */ - this.unquoted.length);\n            let cursor = this.cursor(doc, start, pos), range = null;\n            while (!cursor.nextOverlapping().done)\n                range = cursor.value;\n            if (range)\n                return range;\n            if (start == from)\n                return null;\n            pos -= 10000 /* ChunkSize */;\n        }\n    }\n    prevMatch(doc, curFrom, curTo) {\n        return this.prevMatchInRange(doc, 0, curFrom) ||\n            this.prevMatchInRange(doc, curTo, doc.length);\n    }\n    getReplacement(_result) { return this.replace; }\n    matchAll(doc, limit) {\n        let cursor = this.cursor(doc), ranges = [];\n        while (!cursor.next().done) {\n            if (ranges.length >= limit)\n                return null;\n            ranges.push(cursor.value);\n        }\n        return ranges;\n    }\n    highlight(doc, from, to, add) {\n        let cursor = this.cursor(doc, Math.max(0, from - this.unquoted.length), Math.min(to + this.unquoted.length, doc.length));\n        while (!cursor.next().done)\n            add(cursor.value.from, cursor.value.to);\n    }\n    get valid() { return !!this.search; }\n}\nclass RegExpQuery extends Query {\n    constructor(search, replace, caseInsensitive) {\n        super(search, replace, caseInsensitive);\n        this.valid = !!search && validRegExp(search);\n    }\n    cursor(doc, from = 0, to = doc.length) {\n        return new RegExpCursor(doc, this.search, this.caseInsensitive ? { ignoreCase: true } : undefined, from, to);\n    }\n    nextMatch(doc, curFrom, curTo) {\n        let cursor = this.cursor(doc, curTo).next();\n        if (cursor.done)\n            cursor = this.cursor(doc, 0, curFrom).next();\n        return cursor.done ? null : cursor.value;\n    }\n    prevMatchInRange(doc, from, to) {\n        for (let size = 1;; size++) {\n            let start = Math.max(from, to - size * 10000 /* ChunkSize */);\n            let cursor = this.cursor(doc, start, to), range = null;\n            while (!cursor.next().done)\n                range = cursor.value;\n            if (range && (start == from || range.from > start + 10))\n                return range;\n            if (start == from)\n                return null;\n        }\n    }\n    prevMatch(doc, curFrom, curTo) {\n        return this.prevMatchInRange(doc, 0, curFrom) ||\n            this.prevMatchInRange(doc, curTo, doc.length);\n    }\n    getReplacement(result) {\n        return this.replace.replace(/\\$([$&\\d+])/g, (m, i) => i == \"$\" ? \"$\"\n            : i == \"&\" ? result.match[0]\n                : i != \"0\" && +i < result.match.length ? result.match[i]\n                    : m);\n    }\n    matchAll(doc, limit) {\n        let cursor = this.cursor(doc), ranges = [];\n        while (!cursor.next().done) {\n            if (ranges.length >= limit)\n                return null;\n            ranges.push(cursor.value);\n        }\n        return ranges;\n    }\n    highlight(doc, from, to, add) {\n        let cursor = this.cursor(doc, Math.max(0, from - 250 /* HighlightMargin */), Math.min(to + 250 /* HighlightMargin */, doc.length));\n        while (!cursor.next().done)\n            add(cursor.value.from, cursor.value.to);\n    }\n}\nconst setQuery = /*@__PURE__*/StateEffect.define();\nconst togglePanel = /*@__PURE__*/StateEffect.define();\nconst searchState = /*@__PURE__*/StateField.define({\n    create(state) {\n        return new SearchState(defaultQuery(state), createSearchPanel);\n    },\n    update(value, tr) {\n        for (let effect of tr.effects) {\n            if (effect.is(setQuery))\n                value = new SearchState(effect.value, value.panel);\n            else if (effect.is(togglePanel))\n                value = new SearchState(value.query, effect.value ? createSearchPanel : null);\n        }\n        return value;\n    },\n    provide: f => showPanel.from(f, val => val.panel)\n});\nclass SearchState {\n    constructor(query, panel) {\n        this.query = query;\n        this.panel = panel;\n    }\n}\nconst matchMark = /*@__PURE__*/Decoration.mark({ class: \"cm-searchMatch\" }), selectedMatchMark = /*@__PURE__*/Decoration.mark({ class: \"cm-searchMatch cm-searchMatch-selected\" });\nconst searchHighlighter = /*@__PURE__*/ViewPlugin.fromClass(class {\n    constructor(view) {\n        this.view = view;\n        this.decorations = this.highlight(view.state.field(searchState));\n    }\n    update(update) {\n        let state = update.state.field(searchState);\n        if (state != update.startState.field(searchState) || update.docChanged || update.selectionSet)\n            this.decorations = this.highlight(state);\n    }\n    highlight({ query, panel }) {\n        if (!panel || !query.valid)\n            return Decoration.none;\n        let { view } = this;\n        let builder = new RangeSetBuilder();\n        for (let i = 0, ranges = view.visibleRanges, l = ranges.length; i < l; i++) {\n            let { from, to } = ranges[i];\n            while (i < l - 1 && to > ranges[i + 1].from - 2 * 250 /* HighlightMargin */)\n                to = ranges[++i].to;\n            query.highlight(view.state.doc, from, to, (from, to) => {\n                let selected = view.state.selection.ranges.some(r => r.from == from && r.to == to);\n                builder.add(from, to, selected ? selectedMatchMark : matchMark);\n            });\n        }\n        return builder.finish();\n    }\n}, {\n    decorations: v => v.decorations\n});\nfunction searchCommand(f) {\n    return view => {\n        let state = view.state.field(searchState, false);\n        return state && state.query.valid ? f(view, state) : openSearchPanel(view);\n    };\n}\n/**\nOpen the search panel if it isn't already open, and move the\nselection to the first match after the current main selection.\nWill wrap around to the start of the document when it reaches the\nend.\n*/\nconst findNext = /*@__PURE__*/searchCommand((view, { query }) => {\n    let { from, to } = view.state.selection.main;\n    let next = query.nextMatch(view.state.doc, from, to);\n    if (!next || next.from == from && next.to == to)\n        return false;\n    view.dispatch({\n        selection: { anchor: next.from, head: next.to },\n        scrollIntoView: true,\n        effects: announceMatch(view, next)\n    });\n    return true;\n});\n/**\nMove the selection to the previous instance of the search query,\nbefore the current main selection. Will wrap past the start\nof the document to start searching at the end again.\n*/\nconst findPrevious = /*@__PURE__*/searchCommand((view, { query }) => {\n    let { state } = view, { from, to } = state.selection.main;\n    let range = query.prevMatch(state.doc, from, to);\n    if (!range)\n        return false;\n    view.dispatch({\n        selection: { anchor: range.from, head: range.to },\n        scrollIntoView: true,\n        effects: announceMatch(view, range)\n    });\n    return true;\n});\n/**\nSelect all instances of the search query.\n*/\nconst selectMatches = /*@__PURE__*/searchCommand((view, { query }) => {\n    let ranges = query.matchAll(view.state.doc, 1000);\n    if (!ranges || !ranges.length)\n        return false;\n    view.dispatch({\n        selection: EditorSelection.create(ranges.map(r => EditorSelection.range(r.from, r.to)))\n    });\n    return true;\n});\n/**\nSelect all instances of the currently selected text.\n*/\nconst selectSelectionMatches = ({ state, dispatch }) => {\n    let sel = state.selection;\n    if (sel.ranges.length > 1 || sel.main.empty)\n        return false;\n    let { from, to } = sel.main;\n    let ranges = [], main = 0;\n    for (let cur = new SearchCursor(state.doc, state.sliceDoc(from, to)); !cur.next().done;) {\n        if (ranges.length > 1000)\n            return false;\n        if (cur.value.from == from)\n            main = ranges.length;\n        ranges.push(EditorSelection.range(cur.value.from, cur.value.to));\n    }\n    dispatch(state.update({ selection: EditorSelection.create(ranges, main) }));\n    return true;\n};\n/**\nReplace the current match of the search query.\n*/\nconst replaceNext = /*@__PURE__*/searchCommand((view, { query }) => {\n    let { state } = view, { from, to } = state.selection.main;\n    let next = query.nextMatch(state.doc, from, from);\n    if (!next)\n        return false;\n    let changes = [], selection, replacement;\n    if (next.from == from && next.to == to) {\n        replacement = state.toText(query.getReplacement(next));\n        changes.push({ from: next.from, to: next.to, insert: replacement });\n        next = query.nextMatch(state.doc, next.from, next.to);\n    }\n    if (next) {\n        let off = changes.length == 0 || changes[0].from >= next.to ? 0 : next.to - next.from - replacement.length;\n        selection = { anchor: next.from - off, head: next.to - off };\n    }\n    view.dispatch({\n        changes, selection,\n        scrollIntoView: !!selection,\n        effects: next ? announceMatch(view, next) : undefined\n    });\n    return true;\n});\n/**\nReplace all instances of the search query with the given\nreplacement.\n*/\nconst replaceAll = /*@__PURE__*/searchCommand((view, { query }) => {\n    let changes = query.matchAll(view.state.doc, 1e9).map(match => {\n        let { from, to } = match;\n        return { from, to, insert: query.getReplacement(match) };\n    });\n    if (!changes.length)\n        return false;\n    view.dispatch({ changes });\n    return true;\n});\nfunction createSearchPanel(view) {\n    let { query } = view.state.field(searchState);\n    return {\n        dom: buildPanel({\n            view,\n            query,\n            updateQuery(q) {\n                if (!query.eq(q)) {\n                    query = q;\n                    view.dispatch({ effects: setQuery.of(query) });\n                }\n            }\n        }),\n        mount() {\n            this.dom.querySelector(\"[name=search]\").select();\n        },\n        pos: 80,\n        top: view.state.facet(searchConfigFacet).top\n    };\n}\nfunction defaultQuery(state, fallback) {\n    let sel = state.selection.main;\n    let selText = sel.empty || sel.to > sel.from + 100 ? \"\" : state.sliceDoc(sel.from, sel.to);\n    return fallback && !selText ? fallback : new StringQuery(selText.replace(/\\n/g, \"\\\\n\"), \"\", (fallback === null || fallback === void 0 ? void 0 : fallback.caseInsensitive) || false);\n}\n/**\nMake sure the search panel is open and focused.\n*/\nconst openSearchPanel = view => {\n    let state = view.state.field(searchState, false);\n    if (state && state.panel) {\n        let panel = getPanel(view, createSearchPanel);\n        if (!panel)\n            return false;\n        panel.dom.querySelector(\"[name=search]\").focus();\n    }\n    else {\n        view.dispatch({ effects: [\n                togglePanel.of(true),\n                state ? setQuery.of(defaultQuery(view.state, state.query)) : StateEffect.appendConfig.of(searchExtensions)\n            ] });\n    }\n    return true;\n};\n/**\nClose the search panel.\n*/\nconst closeSearchPanel = view => {\n    let state = view.state.field(searchState, false);\n    if (!state || !state.panel)\n        return false;\n    let panel = getPanel(view, createSearchPanel);\n    if (panel && panel.dom.contains(view.root.activeElement))\n        view.focus();\n    view.dispatch({ effects: togglePanel.of(false) });\n    return true;\n};\n/**\nDefault search-related key bindings.\n\n - Mod-f: [`openSearchPanel`](https://codemirror.net/6/docs/ref/#search.openSearchPanel)\n - F3, Mod-g: [`findNext`](https://codemirror.net/6/docs/ref/#search.findNext)\n - Shift-F3, Shift-Mod-g: [`findPrevious`](https://codemirror.net/6/docs/ref/#search.findPrevious)\n - Alt-g: [`gotoLine`](https://codemirror.net/6/docs/ref/#search.gotoLine)\n - Mod-d: [`selectNextOccurrence`](https://codemirror.net/6/docs/ref/#search.selectNextOccurrence)\n*/\nconst searchKeymap = [\n    { key: \"Mod-f\", run: openSearchPanel, scope: \"editor search-panel\" },\n    { key: \"F3\", run: findNext, shift: findPrevious, scope: \"editor search-panel\" },\n    { key: \"Mod-g\", run: findNext, shift: findPrevious, scope: \"editor search-panel\" },\n    { key: \"Escape\", run: closeSearchPanel, scope: \"editor search-panel\" },\n    { key: \"Mod-Shift-l\", run: selectSelectionMatches },\n    { key: \"Alt-g\", run: gotoLine },\n    { key: \"Mod-d\", run: selectNextOccurrence },\n];\nfunction buildPanel(conf) {\n    function phrase(phrase) { return conf.view.state.phrase(phrase); }\n    let searchField = elt(\"input\", {\n        value: conf.query.search,\n        placeholder: phrase(\"Find\"),\n        \"aria-label\": phrase(\"Find\"),\n        class: \"cm-textfield\",\n        name: \"search\",\n        onchange: update,\n        onkeyup: update\n    });\n    let replaceField = elt(\"input\", {\n        value: conf.query.replace,\n        placeholder: phrase(\"Replace\"),\n        \"aria-label\": phrase(\"Replace\"),\n        class: \"cm-textfield\",\n        name: \"replace\",\n        onchange: update,\n        onkeyup: update\n    });\n    let caseField = elt(\"input\", {\n        type: \"checkbox\",\n        name: \"case\",\n        checked: !conf.query.caseInsensitive,\n        onchange: update\n    });\n    let reField = elt(\"input\", {\n        type: \"checkbox\",\n        name: \"re\",\n        checked: conf.query instanceof RegExpQuery,\n        onchange: update\n    });\n    function update() {\n        conf.updateQuery(new (reField.checked ? RegExpQuery : StringQuery)(searchField.value, replaceField.value, !caseField.checked));\n    }\n    function keydown(e) {\n        if (runScopeHandlers(conf.view, e, \"search-panel\")) {\n            e.preventDefault();\n        }\n        else if (e.keyCode == 13 && e.target == searchField) {\n            e.preventDefault();\n            (e.shiftKey ? findPrevious : findNext)(conf.view);\n        }\n        else if (e.keyCode == 13 && e.target == replaceField) {\n            e.preventDefault();\n            replaceNext(conf.view);\n        }\n    }\n    function button(name, onclick, content) {\n        return elt(\"button\", { class: \"cm-button\", name, onclick }, content);\n    }\n    let panel = elt(\"div\", { onkeydown: keydown, class: \"cm-search\" }, [\n        searchField,\n        button(\"next\", () => findNext(conf.view), [phrase(\"next\")]),\n        button(\"prev\", () => findPrevious(conf.view), [phrase(\"previous\")]),\n        button(\"select\", () => selectMatches(conf.view), [phrase(\"all\")]),\n        elt(\"label\", null, [caseField, phrase(\"match case\")]),\n        elt(\"label\", null, [reField, phrase(\"regexp\")]),\n        elt(\"br\"),\n        replaceField,\n        button(\"replace\", () => replaceNext(conf.view), [phrase(\"replace\")]),\n        button(\"replaceAll\", () => replaceAll(conf.view), [phrase(\"replace all\")]),\n        elt(\"button\", { name: \"close\", onclick: () => closeSearchPanel(conf.view), \"aria-label\": phrase(\"close\") }, [\"×\"])\n    ]);\n    return panel;\n}\nconst AnnounceMargin = 30;\nconst Break = /[\\s\\.,:;?!]/;\nfunction announceMatch(view, { from, to }) {\n    let lineStart = view.state.doc.lineAt(from).from, lineEnd = view.state.doc.lineAt(to).to;\n    let start = Math.max(lineStart, from - AnnounceMargin), end = Math.min(lineEnd, to + AnnounceMargin);\n    let text = view.state.sliceDoc(start, end);\n    if (start != lineStart) {\n        for (let i = 0; i < AnnounceMargin; i++)\n            if (!Break.test(text[i + 1]) && Break.test(text[i])) {\n                text = text.slice(i);\n                break;\n            }\n    }\n    if (end != lineEnd) {\n        for (let i = text.length - 1; i > text.length - AnnounceMargin; i--)\n            if (!Break.test(text[i - 1]) && Break.test(text[i])) {\n                text = text.slice(0, i);\n                break;\n            }\n    }\n    return EditorView.announce.of(`${view.state.phrase(\"current match\")}. ${text} ${view.state.phrase(\"on line\")} ${view.state.doc.lineAt(from).number}`);\n}\nconst baseTheme = /*@__PURE__*/EditorView.baseTheme({\n    \".cm-panel.cm-search\": {\n        padding: \"2px 6px 4px\",\n        position: \"relative\",\n        \"& [name=close]\": {\n            position: \"absolute\",\n            top: \"0\",\n            right: \"4px\",\n            backgroundColor: \"inherit\",\n            border: \"none\",\n            font: \"inherit\",\n            padding: 0,\n            margin: 0\n        },\n        \"& input, & button, & label\": {\n            margin: \".2em .6em .2em 0\"\n        },\n        \"& input[type=checkbox]\": {\n            marginRight: \".2em\"\n        },\n        \"& label\": {\n            fontSize: \"80%\",\n            whiteSpace: \"pre\"\n        }\n    },\n    \"&light .cm-searchMatch\": { backgroundColor: \"#ffff0054\" },\n    \"&dark .cm-searchMatch\": { backgroundColor: \"#00ffff8a\" },\n    \"&light .cm-searchMatch-selected\": { backgroundColor: \"#ff6a0054\" },\n    \"&dark .cm-searchMatch-selected\": { backgroundColor: \"#ff00ff8a\" }\n});\nconst searchExtensions = [\n    searchState,\n    /*@__PURE__*/Prec.override(searchHighlighter),\n    baseTheme\n];\n\nexport { RegExpCursor, SearchCursor, closeSearchPanel, findNext, findPrevious, gotoLine, highlightSelectionMatches, openSearchPanel, replaceAll, replaceNext, searchConfig, searchKeymap, selectMatches, selectNextOccurrence, selectSelectionMatches };\n","import { Text, findClusterBreak } from '@codemirror/text';\nexport { Text } from '@codemirror/text';\n\nconst DefaultSplit = /\\r\\n?|\\n/;\n/**\nDistinguishes different ways in which positions can be mapped.\n*/\nvar MapMode = /*@__PURE__*/(function (MapMode) {\n    /**\n    Map a position to a valid new position, even when its context\n    was deleted.\n    */\n    MapMode[MapMode[\"Simple\"] = 0] = \"Simple\";\n    /**\n    Return null if deletion happens across the position.\n    */\n    MapMode[MapMode[\"TrackDel\"] = 1] = \"TrackDel\";\n    /**\n    Return null if the character _before_ the position is deleted.\n    */\n    MapMode[MapMode[\"TrackBefore\"] = 2] = \"TrackBefore\";\n    /**\n    Return null if the character _after_ the position is deleted.\n    */\n    MapMode[MapMode[\"TrackAfter\"] = 3] = \"TrackAfter\";\nreturn MapMode})(MapMode || (MapMode = {}));\n/**\nA change description is a variant of [change set](https://codemirror.net/6/docs/ref/#state.ChangeSet)\nthat doesn't store the inserted text. As such, it can't be\napplied, but is cheaper to store and manipulate.\n*/\nclass ChangeDesc {\n    // Sections are encoded as pairs of integers. The first is the\n    // length in the current document, and the second is -1 for\n    // unaffected sections, and the length of the replacement content\n    // otherwise. So an insertion would be (0, n>0), a deletion (n>0,\n    // 0), and a replacement two positive numbers.\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    @internal\n    */\n    sections) {\n        this.sections = sections;\n    }\n    /**\n    The length of the document before the change.\n    */\n    get length() {\n        let result = 0;\n        for (let i = 0; i < this.sections.length; i += 2)\n            result += this.sections[i];\n        return result;\n    }\n    /**\n    The length of the document after the change.\n    */\n    get newLength() {\n        let result = 0;\n        for (let i = 0; i < this.sections.length; i += 2) {\n            let ins = this.sections[i + 1];\n            result += ins < 0 ? this.sections[i] : ins;\n        }\n        return result;\n    }\n    /**\n    False when there are actual changes in this set.\n    */\n    get empty() { return this.sections.length == 0 || this.sections.length == 2 && this.sections[1] < 0; }\n    /**\n    Iterate over the unchanged parts left by these changes.\n    */\n    iterGaps(f) {\n        for (let i = 0, posA = 0, posB = 0; i < this.sections.length;) {\n            let len = this.sections[i++], ins = this.sections[i++];\n            if (ins < 0) {\n                f(posA, posB, len);\n                posB += len;\n            }\n            else {\n                posB += ins;\n            }\n            posA += len;\n        }\n    }\n    /**\n    Iterate over the ranges changed by these changes. (See\n    [`ChangeSet.iterChanges`](https://codemirror.net/6/docs/ref/#state.ChangeSet.iterChanges) for a\n    variant that also provides you with the inserted text.)\n    \n    When `individual` is true, adjacent changes (which are kept\n    separate for [position mapping](https://codemirror.net/6/docs/ref/#state.ChangeDesc.mapPos)) are\n    reported separately.\n    */\n    iterChangedRanges(f, individual = false) {\n        iterChanges(this, f, individual);\n    }\n    /**\n    Get a description of the inverted form of these changes.\n    */\n    get invertedDesc() {\n        let sections = [];\n        for (let i = 0; i < this.sections.length;) {\n            let len = this.sections[i++], ins = this.sections[i++];\n            if (ins < 0)\n                sections.push(len, ins);\n            else\n                sections.push(ins, len);\n        }\n        return new ChangeDesc(sections);\n    }\n    /**\n    Compute the combined effect of applying another set of changes\n    after this one. The length of the document after this set should\n    match the length before `other`.\n    */\n    composeDesc(other) { return this.empty ? other : other.empty ? this : composeSets(this, other); }\n    /**\n    Map this description, which should start with the same document\n    as `other`, over another set of changes, so that it can be\n    applied after it. When `before` is true, map as if the changes\n    in `other` happened before the ones in `this`.\n    */\n    mapDesc(other, before = false) { return other.empty ? this : mapSet(this, other, before); }\n    mapPos(pos, assoc = -1, mode = MapMode.Simple) {\n        let posA = 0, posB = 0;\n        for (let i = 0; i < this.sections.length;) {\n            let len = this.sections[i++], ins = this.sections[i++], endA = posA + len;\n            if (ins < 0) {\n                if (endA > pos)\n                    return posB + (pos - posA);\n                posB += len;\n            }\n            else {\n                if (mode != MapMode.Simple && endA >= pos &&\n                    (mode == MapMode.TrackDel && posA < pos && endA > pos ||\n                        mode == MapMode.TrackBefore && posA < pos ||\n                        mode == MapMode.TrackAfter && endA > pos))\n                    return null;\n                if (endA > pos || endA == pos && assoc < 0 && !len)\n                    return pos == posA || assoc < 0 ? posB : posB + ins;\n                posB += ins;\n            }\n            posA = endA;\n        }\n        if (pos > posA)\n            throw new RangeError(`Position ${pos} is out of range for changeset of length ${posA}`);\n        return posB;\n    }\n    /**\n    Check whether these changes touch a given range. When one of the\n    changes entirely covers the range, the string `\"cover\"` is\n    returned.\n    */\n    touchesRange(from, to = from) {\n        for (let i = 0, pos = 0; i < this.sections.length && pos <= to;) {\n            let len = this.sections[i++], ins = this.sections[i++], end = pos + len;\n            if (ins >= 0 && pos <= to && end >= from)\n                return pos < from && end > to ? \"cover\" : true;\n            pos = end;\n        }\n        return false;\n    }\n    /**\n    @internal\n    */\n    toString() {\n        let result = \"\";\n        for (let i = 0; i < this.sections.length;) {\n            let len = this.sections[i++], ins = this.sections[i++];\n            result += (result ? \" \" : \"\") + len + (ins >= 0 ? \":\" + ins : \"\");\n        }\n        return result;\n    }\n    /**\n    Serialize this change desc to a JSON-representable value.\n    */\n    toJSON() { return this.sections; }\n    /**\n    Create a change desc from its JSON representation (as produced\n    by [`toJSON`](https://codemirror.net/6/docs/ref/#state.ChangeDesc.toJSON).\n    */\n    static fromJSON(json) {\n        if (!Array.isArray(json) || json.length % 2 || json.some(a => typeof a != \"number\"))\n            throw new RangeError(\"Invalid JSON representation of ChangeDesc\");\n        return new ChangeDesc(json);\n    }\n}\n/**\nA change set represents a group of modifications to a document. It\nstores the document length, and can only be applied to documents\nwith exactly that length.\n*/\nclass ChangeSet extends ChangeDesc {\n    /**\n    @internal\n    */\n    constructor(sections, \n    /**\n    @internal\n    */\n    inserted) {\n        super(sections);\n        this.inserted = inserted;\n    }\n    /**\n    Apply the changes to a document, returning the modified\n    document.\n    */\n    apply(doc) {\n        if (this.length != doc.length)\n            throw new RangeError(\"Applying change set to a document with the wrong length\");\n        iterChanges(this, (fromA, toA, fromB, _toB, text) => doc = doc.replace(fromB, fromB + (toA - fromA), text), false);\n        return doc;\n    }\n    mapDesc(other, before = false) { return mapSet(this, other, before, true); }\n    /**\n    Given the document as it existed _before_ the changes, return a\n    change set that represents the inverse of this set, which could\n    be used to go from the document created by the changes back to\n    the document as it existed before the changes.\n    */\n    invert(doc) {\n        let sections = this.sections.slice(), inserted = [];\n        for (let i = 0, pos = 0; i < sections.length; i += 2) {\n            let len = sections[i], ins = sections[i + 1];\n            if (ins >= 0) {\n                sections[i] = ins;\n                sections[i + 1] = len;\n                let index = i >> 1;\n                while (inserted.length < index)\n                    inserted.push(Text.empty);\n                inserted.push(len ? doc.slice(pos, pos + len) : Text.empty);\n            }\n            pos += len;\n        }\n        return new ChangeSet(sections, inserted);\n    }\n    /**\n    Combine two subsequent change sets into a single set. `other`\n    must start in the document produced by `this`. If `this` goes\n    `docA` → `docB` and `other` represents `docB` → `docC`, the\n    returned value will represent the change `docA` → `docC`.\n    */\n    compose(other) { return this.empty ? other : other.empty ? this : composeSets(this, other, true); }\n    /**\n    Given another change set starting in the same document, maps this\n    change set over the other, producing a new change set that can be\n    applied to the document produced by applying `other`. When\n    `before` is `true`, order changes as if `this` comes before\n    `other`, otherwise (the default) treat `other` as coming first.\n    \n    Given two changes `A` and `B`, `A.compose(B.map(A))` and\n    `B.compose(A.map(B, true))` will produce the same document. This\n    provides a basic form of [operational\n    transformation](https://en.wikipedia.org/wiki/Operational_transformation),\n    and can be used for collaborative editing.\n    */\n    map(other, before = false) { return other.empty ? this : mapSet(this, other, before, true); }\n    /**\n    Iterate over the changed ranges in the document, calling `f` for\n    each.\n    \n    When `individual` is true, adjacent changes are reported\n    separately.\n    */\n    iterChanges(f, individual = false) {\n        iterChanges(this, f, individual);\n    }\n    /**\n    Get a [change description](https://codemirror.net/6/docs/ref/#state.ChangeDesc) for this change\n    set.\n    */\n    get desc() { return new ChangeDesc(this.sections); }\n    /**\n    @internal\n    */\n    filter(ranges) {\n        let resultSections = [], resultInserted = [], filteredSections = [];\n        let iter = new SectionIter(this);\n        done: for (let i = 0, pos = 0;;) {\n            let next = i == ranges.length ? 1e9 : ranges[i++];\n            while (pos < next || pos == next && iter.len == 0) {\n                if (iter.done)\n                    break done;\n                let len = Math.min(iter.len, next - pos);\n                addSection(filteredSections, len, -1);\n                let ins = iter.ins == -1 ? -1 : iter.off == 0 ? iter.ins : 0;\n                addSection(resultSections, len, ins);\n                if (ins > 0)\n                    addInsert(resultInserted, resultSections, iter.text);\n                iter.forward(len);\n                pos += len;\n            }\n            let end = ranges[i++];\n            while (pos < end) {\n                if (iter.done)\n                    break done;\n                let len = Math.min(iter.len, end - pos);\n                addSection(resultSections, len, -1);\n                addSection(filteredSections, len, iter.ins == -1 ? -1 : iter.off == 0 ? iter.ins : 0);\n                iter.forward(len);\n                pos += len;\n            }\n        }\n        return { changes: new ChangeSet(resultSections, resultInserted),\n            filtered: new ChangeDesc(filteredSections) };\n    }\n    /**\n    Serialize this change set to a JSON-representable value.\n    */\n    toJSON() {\n        let parts = [];\n        for (let i = 0; i < this.sections.length; i += 2) {\n            let len = this.sections[i], ins = this.sections[i + 1];\n            if (ins < 0)\n                parts.push(len);\n            else if (ins == 0)\n                parts.push([len]);\n            else\n                parts.push([len].concat(this.inserted[i >> 1].toJSON()));\n        }\n        return parts;\n    }\n    /**\n    Create a change set for the given changes, for a document of the\n    given length, using `lineSep` as line separator.\n    */\n    static of(changes, length, lineSep) {\n        let sections = [], inserted = [], pos = 0;\n        let total = null;\n        function flush(force = false) {\n            if (!force && !sections.length)\n                return;\n            if (pos < length)\n                addSection(sections, length - pos, -1);\n            let set = new ChangeSet(sections, inserted);\n            total = total ? total.compose(set.map(total)) : set;\n            sections = [];\n            inserted = [];\n            pos = 0;\n        }\n        function process(spec) {\n            if (Array.isArray(spec)) {\n                for (let sub of spec)\n                    process(sub);\n            }\n            else if (spec instanceof ChangeSet) {\n                if (spec.length != length)\n                    throw new RangeError(`Mismatched change set length (got ${spec.length}, expected ${length})`);\n                flush();\n                total = total ? total.compose(spec.map(total)) : spec;\n            }\n            else {\n                let { from, to = from, insert } = spec;\n                if (from > to || from < 0 || to > length)\n                    throw new RangeError(`Invalid change range ${from} to ${to} (in doc of length ${length})`);\n                let insText = !insert ? Text.empty : typeof insert == \"string\" ? Text.of(insert.split(lineSep || DefaultSplit)) : insert;\n                let insLen = insText.length;\n                if (from == to && insLen == 0)\n                    return;\n                if (from < pos)\n                    flush();\n                if (from > pos)\n                    addSection(sections, from - pos, -1);\n                addSection(sections, to - from, insLen);\n                addInsert(inserted, sections, insText);\n                pos = to;\n            }\n        }\n        process(changes);\n        flush(!total);\n        return total;\n    }\n    /**\n    Create an empty changeset of the given length.\n    */\n    static empty(length) {\n        return new ChangeSet(length ? [length, -1] : [], []);\n    }\n    /**\n    Create a changeset from its JSON representation (as produced by\n    [`toJSON`](https://codemirror.net/6/docs/ref/#state.ChangeSet.toJSON).\n    */\n    static fromJSON(json) {\n        if (!Array.isArray(json))\n            throw new RangeError(\"Invalid JSON representation of ChangeSet\");\n        let sections = [], inserted = [];\n        for (let i = 0; i < json.length; i++) {\n            let part = json[i];\n            if (typeof part == \"number\") {\n                sections.push(part, -1);\n            }\n            else if (!Array.isArray(part) || typeof part[0] != \"number\" || part.some((e, i) => i && typeof e != \"string\")) {\n                throw new RangeError(\"Invalid JSON representation of ChangeSet\");\n            }\n            else if (part.length == 1) {\n                sections.push(part[0], 0);\n            }\n            else {\n                while (inserted.length < i)\n                    inserted.push(Text.empty);\n                inserted[i] = Text.of(part.slice(1));\n                sections.push(part[0], inserted[i].length);\n            }\n        }\n        return new ChangeSet(sections, inserted);\n    }\n}\nfunction addSection(sections, len, ins, forceJoin = false) {\n    if (len == 0 && ins <= 0)\n        return;\n    let last = sections.length - 2;\n    if (last >= 0 && ins <= 0 && ins == sections[last + 1])\n        sections[last] += len;\n    else if (len == 0 && sections[last] == 0)\n        sections[last + 1] += ins;\n    else if (forceJoin) {\n        sections[last] += len;\n        sections[last + 1] += ins;\n    }\n    else\n        sections.push(len, ins);\n}\nfunction addInsert(values, sections, value) {\n    if (value.length == 0)\n        return;\n    let index = (sections.length - 2) >> 1;\n    if (index < values.length) {\n        values[values.length - 1] = values[values.length - 1].append(value);\n    }\n    else {\n        while (values.length < index)\n            values.push(Text.empty);\n        values.push(value);\n    }\n}\nfunction iterChanges(desc, f, individual) {\n    let inserted = desc.inserted;\n    for (let posA = 0, posB = 0, i = 0; i < desc.sections.length;) {\n        let len = desc.sections[i++], ins = desc.sections[i++];\n        if (ins < 0) {\n            posA += len;\n            posB += len;\n        }\n        else {\n            let endA = posA, endB = posB, text = Text.empty;\n            for (;;) {\n                endA += len;\n                endB += ins;\n                if (ins && inserted)\n                    text = text.append(inserted[(i - 2) >> 1]);\n                if (individual || i == desc.sections.length || desc.sections[i + 1] < 0)\n                    break;\n                len = desc.sections[i++];\n                ins = desc.sections[i++];\n            }\n            f(posA, endA, posB, endB, text);\n            posA = endA;\n            posB = endB;\n        }\n    }\n}\nfunction mapSet(setA, setB, before, mkSet = false) {\n    let sections = [], insert = mkSet ? [] : null;\n    let a = new SectionIter(setA), b = new SectionIter(setB);\n    for (let posA = 0, posB = 0;;) {\n        if (a.ins == -1) {\n            posA += a.len;\n            a.next();\n        }\n        else if (b.ins == -1 && posB < posA) {\n            let skip = Math.min(b.len, posA - posB);\n            b.forward(skip);\n            addSection(sections, skip, -1);\n            posB += skip;\n        }\n        else if (b.ins >= 0 && (a.done || posB < posA || posB == posA && (b.len < a.len || b.len == a.len && !before))) {\n            addSection(sections, b.ins, -1);\n            while (posA > posB && !a.done && posA + a.len < posB + b.len) {\n                posA += a.len;\n                a.next();\n            }\n            posB += b.len;\n            b.next();\n        }\n        else if (a.ins >= 0) {\n            let len = 0, end = posA + a.len;\n            for (;;) {\n                if (b.ins >= 0 && posB > posA && posB + b.len < end) {\n                    len += b.ins;\n                    posB += b.len;\n                    b.next();\n                }\n                else if (b.ins == -1 && posB < end) {\n                    let skip = Math.min(b.len, end - posB);\n                    len += skip;\n                    b.forward(skip);\n                    posB += skip;\n                }\n                else {\n                    break;\n                }\n            }\n            addSection(sections, len, a.ins);\n            if (insert)\n                addInsert(insert, sections, a.text);\n            posA = end;\n            a.next();\n        }\n        else if (a.done && b.done) {\n            return insert ? new ChangeSet(sections, insert) : new ChangeDesc(sections);\n        }\n        else {\n            throw new Error(\"Mismatched change set lengths\");\n        }\n    }\n}\nfunction composeSets(setA, setB, mkSet = false) {\n    let sections = [];\n    let insert = mkSet ? [] : null;\n    let a = new SectionIter(setA), b = new SectionIter(setB);\n    for (let open = false;;) {\n        if (a.done && b.done) {\n            return insert ? new ChangeSet(sections, insert) : new ChangeDesc(sections);\n        }\n        else if (a.ins == 0) { // Deletion in A\n            addSection(sections, a.len, 0, open);\n            a.next();\n        }\n        else if (b.len == 0 && !b.done) { // Insertion in B\n            addSection(sections, 0, b.ins, open);\n            if (insert)\n                addInsert(insert, sections, b.text);\n            b.next();\n        }\n        else if (a.done || b.done) {\n            throw new Error(\"Mismatched change set lengths\");\n        }\n        else {\n            let len = Math.min(a.len2, b.len), sectionLen = sections.length;\n            if (a.ins == -1) {\n                let insB = b.ins == -1 ? -1 : b.off ? 0 : b.ins;\n                addSection(sections, len, insB, open);\n                if (insert && insB)\n                    addInsert(insert, sections, b.text);\n            }\n            else if (b.ins == -1) {\n                addSection(sections, a.off ? 0 : a.len, len, open);\n                if (insert)\n                    addInsert(insert, sections, a.textBit(len));\n            }\n            else {\n                addSection(sections, a.off ? 0 : a.len, b.off ? 0 : b.ins, open);\n                if (insert && !b.off)\n                    addInsert(insert, sections, b.text);\n            }\n            open = (a.ins > len || b.ins >= 0 && b.len > len) && (open || sections.length > sectionLen);\n            a.forward2(len);\n            b.forward(len);\n        }\n    }\n}\nclass SectionIter {\n    constructor(set) {\n        this.set = set;\n        this.i = 0;\n        this.next();\n    }\n    next() {\n        let { sections } = this.set;\n        if (this.i < sections.length) {\n            this.len = sections[this.i++];\n            this.ins = sections[this.i++];\n        }\n        else {\n            this.len = 0;\n            this.ins = -2;\n        }\n        this.off = 0;\n    }\n    get done() { return this.ins == -2; }\n    get len2() { return this.ins < 0 ? this.len : this.ins; }\n    get text() {\n        let { inserted } = this.set, index = (this.i - 2) >> 1;\n        return index >= inserted.length ? Text.empty : inserted[index];\n    }\n    textBit(len) {\n        let { inserted } = this.set, index = (this.i - 2) >> 1;\n        return index >= inserted.length && !len ? Text.empty\n            : inserted[index].slice(this.off, len == null ? undefined : this.off + len);\n    }\n    forward(len) {\n        if (len == this.len)\n            this.next();\n        else {\n            this.len -= len;\n            this.off += len;\n        }\n    }\n    forward2(len) {\n        if (this.ins == -1)\n            this.forward(len);\n        else if (len == this.ins)\n            this.next();\n        else {\n            this.ins -= len;\n            this.off += len;\n        }\n    }\n}\n\n/**\nA single selection range. When\n[`allowMultipleSelections`](https://codemirror.net/6/docs/ref/#state.EditorState^allowMultipleSelections)\nis enabled, a [selection](https://codemirror.net/6/docs/ref/#state.EditorSelection) may hold\nmultiple ranges. By default, selections hold exactly one range.\n*/\nclass SelectionRange {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The lower boundary of the range.\n    */\n    from, \n    /**\n    The upper boundary of the range.\n    */\n    to, flags) {\n        this.from = from;\n        this.to = to;\n        this.flags = flags;\n    }\n    /**\n    The anchor of the range—the side that doesn't move when you\n    extend it.\n    */\n    get anchor() { return this.flags & 16 /* Inverted */ ? this.to : this.from; }\n    /**\n    The head of the range, which is moved when the range is\n    [extended](https://codemirror.net/6/docs/ref/#state.SelectionRange.extend).\n    */\n    get head() { return this.flags & 16 /* Inverted */ ? this.from : this.to; }\n    /**\n    True when `anchor` and `head` are at the same position.\n    */\n    get empty() { return this.from == this.to; }\n    /**\n    If this is a cursor that is explicitly associated with the\n    character on one of its sides, this returns the side. -1 means\n    the character before its position, 1 the character after, and 0\n    means no association.\n    */\n    get assoc() { return this.flags & 4 /* AssocBefore */ ? -1 : this.flags & 8 /* AssocAfter */ ? 1 : 0; }\n    /**\n    The bidirectional text level associated with this cursor, if\n    any.\n    */\n    get bidiLevel() {\n        let level = this.flags & 3 /* BidiLevelMask */;\n        return level == 3 ? null : level;\n    }\n    /**\n    The goal column (stored vertical offset) associated with a\n    cursor. This is used to preserve the vertical position when\n    [moving](https://codemirror.net/6/docs/ref/#view.EditorView.moveVertically) across\n    lines of different length.\n    */\n    get goalColumn() {\n        let value = this.flags >> 5 /* GoalColumnOffset */;\n        return value == 33554431 /* NoGoalColumn */ ? undefined : value;\n    }\n    /**\n    Map this range through a change, producing a valid range in the\n    updated document.\n    */\n    map(change, assoc = -1) {\n        let from = change.mapPos(this.from, assoc), to = change.mapPos(this.to, assoc);\n        return from == this.from && to == this.to ? this : new SelectionRange(from, to, this.flags);\n    }\n    /**\n    Extend this range to cover at least `from` to `to`.\n    */\n    extend(from, to = from) {\n        if (from <= this.anchor && to >= this.anchor)\n            return EditorSelection.range(from, to);\n        let head = Math.abs(from - this.anchor) > Math.abs(to - this.anchor) ? from : to;\n        return EditorSelection.range(this.anchor, head);\n    }\n    /**\n    Compare this range to another range.\n    */\n    eq(other) {\n        return this.anchor == other.anchor && this.head == other.head;\n    }\n    /**\n    Return a JSON-serializable object representing the range.\n    */\n    toJSON() { return { anchor: this.anchor, head: this.head }; }\n    /**\n    Convert a JSON representation of a range to a `SelectionRange`\n    instance.\n    */\n    static fromJSON(json) {\n        if (!json || typeof json.anchor != \"number\" || typeof json.head != \"number\")\n            throw new RangeError(\"Invalid JSON representation for SelectionRange\");\n        return EditorSelection.range(json.anchor, json.head);\n    }\n}\n/**\nAn editor selection holds one or more selection ranges.\n*/\nclass EditorSelection {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The ranges in the selection, sorted by position. Ranges cannot\n    overlap (but they may touch, if they aren't empty).\n    */\n    ranges, \n    /**\n    The index of the _main_ range in the selection (which is\n    usually the range that was added last).\n    */\n    mainIndex = 0) {\n        this.ranges = ranges;\n        this.mainIndex = mainIndex;\n    }\n    /**\n    Map a selection through a change. Used to adjust the selection\n    position for changes.\n    */\n    map(change, assoc = -1) {\n        if (change.empty)\n            return this;\n        return EditorSelection.create(this.ranges.map(r => r.map(change, assoc)), this.mainIndex);\n    }\n    /**\n    Compare this selection to another selection.\n    */\n    eq(other) {\n        if (this.ranges.length != other.ranges.length ||\n            this.mainIndex != other.mainIndex)\n            return false;\n        for (let i = 0; i < this.ranges.length; i++)\n            if (!this.ranges[i].eq(other.ranges[i]))\n                return false;\n        return true;\n    }\n    /**\n    Get the primary selection range. Usually, you should make sure\n    your code applies to _all_ ranges, by using methods like\n    [`changeByRange`](https://codemirror.net/6/docs/ref/#state.EditorState.changeByRange).\n    */\n    get main() { return this.ranges[this.mainIndex]; }\n    /**\n    Make sure the selection only has one range. Returns a selection\n    holding only the main range from this selection.\n    */\n    asSingle() {\n        return this.ranges.length == 1 ? this : new EditorSelection([this.main]);\n    }\n    /**\n    Extend this selection with an extra range.\n    */\n    addRange(range, main = true) {\n        return EditorSelection.create([range].concat(this.ranges), main ? 0 : this.mainIndex + 1);\n    }\n    /**\n    Replace a given range with another range, and then normalize the\n    selection to merge and sort ranges if necessary.\n    */\n    replaceRange(range, which = this.mainIndex) {\n        let ranges = this.ranges.slice();\n        ranges[which] = range;\n        return EditorSelection.create(ranges, this.mainIndex);\n    }\n    /**\n    Convert this selection to an object that can be serialized to\n    JSON.\n    */\n    toJSON() {\n        return { ranges: this.ranges.map(r => r.toJSON()), main: this.mainIndex };\n    }\n    /**\n    Create a selection from a JSON representation.\n    */\n    static fromJSON(json) {\n        if (!json || !Array.isArray(json.ranges) || typeof json.main != \"number\" || json.main >= json.ranges.length)\n            throw new RangeError(\"Invalid JSON representation for EditorSelection\");\n        return new EditorSelection(json.ranges.map((r) => SelectionRange.fromJSON(r)), json.main);\n    }\n    /**\n    Create a selection holding a single range.\n    */\n    static single(anchor, head = anchor) {\n        return new EditorSelection([EditorSelection.range(anchor, head)], 0);\n    }\n    /**\n    Sort and merge the given set of ranges, creating a valid\n    selection.\n    */\n    static create(ranges, mainIndex = 0) {\n        if (ranges.length == 0)\n            throw new RangeError(\"A selection needs at least one range\");\n        for (let pos = 0, i = 0; i < ranges.length; i++) {\n            let range = ranges[i];\n            if (range.empty ? range.from <= pos : range.from < pos)\n                return normalized(ranges.slice(), mainIndex);\n            pos = range.to;\n        }\n        return new EditorSelection(ranges, mainIndex);\n    }\n    /**\n    Create a cursor selection range at the given position. You can\n    safely ignore the optional arguments in most situations.\n    */\n    static cursor(pos, assoc = 0, bidiLevel, goalColumn) {\n        return new SelectionRange(pos, pos, (assoc == 0 ? 0 : assoc < 0 ? 4 /* AssocBefore */ : 8 /* AssocAfter */) |\n            (bidiLevel == null ? 3 : Math.min(2, bidiLevel)) |\n            ((goalColumn !== null && goalColumn !== void 0 ? goalColumn : 33554431 /* NoGoalColumn */) << 5 /* GoalColumnOffset */));\n    }\n    /**\n    Create a selection range.\n    */\n    static range(anchor, head, goalColumn) {\n        let goal = (goalColumn !== null && goalColumn !== void 0 ? goalColumn : 33554431 /* NoGoalColumn */) << 5 /* GoalColumnOffset */;\n        return head < anchor ? new SelectionRange(head, anchor, 16 /* Inverted */ | goal) : new SelectionRange(anchor, head, goal);\n    }\n}\nfunction normalized(ranges, mainIndex = 0) {\n    let main = ranges[mainIndex];\n    ranges.sort((a, b) => a.from - b.from);\n    mainIndex = ranges.indexOf(main);\n    for (let i = 1; i < ranges.length; i++) {\n        let range = ranges[i], prev = ranges[i - 1];\n        if (range.empty ? range.from <= prev.to : range.from < prev.to) {\n            let from = prev.from, to = Math.max(range.to, prev.to);\n            if (i <= mainIndex)\n                mainIndex--;\n            ranges.splice(--i, 2, range.anchor > range.head ? EditorSelection.range(to, from) : EditorSelection.range(from, to));\n        }\n    }\n    return new EditorSelection(ranges, mainIndex);\n}\nfunction checkSelection(selection, docLength) {\n    for (let range of selection.ranges)\n        if (range.to > docLength)\n            throw new RangeError(\"Selection points outside of document\");\n}\n\nlet nextID = 0;\n/**\nA facet is a labeled value that is associated with an editor\nstate. It takes inputs from any number of extensions, and combines\nthose into a single output value.\n\nExamples of facets are the [theme](https://codemirror.net/6/docs/ref/#view.EditorView^theme) styles\nassociated with an editor or the [tab\nsize](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) (which is reduced to a single\nvalue, using the input with the hightest precedence).\n*/\nclass Facet {\n    constructor(\n    /**\n    @internal\n    */\n    combine, \n    /**\n    @internal\n    */\n    compareInput, \n    /**\n    @internal\n    */\n    compare, isStatic, \n    /**\n    @internal\n    */\n    extensions) {\n        this.combine = combine;\n        this.compareInput = compareInput;\n        this.compare = compare;\n        this.isStatic = isStatic;\n        this.extensions = extensions;\n        /**\n        @internal\n        */\n        this.id = nextID++;\n        this.default = combine([]);\n    }\n    /**\n    Define a new facet.\n    */\n    static define(config = {}) {\n        return new Facet(config.combine || ((a) => a), config.compareInput || ((a, b) => a === b), config.compare || (!config.combine ? sameArray : (a, b) => a === b), !!config.static, config.enables);\n    }\n    /**\n    Returns an extension that adds the given value for this facet.\n    */\n    of(value) {\n        return new FacetProvider([], this, 0 /* Static */, value);\n    }\n    /**\n    Create an extension that computes a value for the facet from a\n    state. You must take care to declare the parts of the state that\n    this value depends on, since your function is only called again\n    for a new state when one of those parts changed.\n    \n    In most cases, you'll want to use the\n    [`provide`](https://codemirror.net/6/docs/ref/#state.StateField^define^config.provide) option when\n    defining a field instead.\n    */\n    compute(deps, get) {\n        if (this.isStatic)\n            throw new Error(\"Can't compute a static facet\");\n        return new FacetProvider(deps, this, 1 /* Single */, get);\n    }\n    /**\n    Create an extension that computes zero or more values for this\n    facet from a state.\n    */\n    computeN(deps, get) {\n        if (this.isStatic)\n            throw new Error(\"Can't compute a static facet\");\n        return new FacetProvider(deps, this, 2 /* Multi */, get);\n    }\n    from(field, get) {\n        if (!get)\n            get = x => x;\n        return this.compute([field], state => get(state.field(field)));\n    }\n}\nfunction sameArray(a, b) {\n    return a == b || a.length == b.length && a.every((e, i) => e === b[i]);\n}\nclass FacetProvider {\n    constructor(dependencies, facet, type, value) {\n        this.dependencies = dependencies;\n        this.facet = facet;\n        this.type = type;\n        this.value = value;\n        this.id = nextID++;\n    }\n    dynamicSlot(addresses) {\n        var _a;\n        let getter = this.value;\n        let compare = this.facet.compareInput;\n        let idx = addresses[this.id] >> 1, multi = this.type == 2 /* Multi */;\n        let depDoc = false, depSel = false, depAddrs = [];\n        for (let dep of this.dependencies) {\n            if (dep == \"doc\")\n                depDoc = true;\n            else if (dep == \"selection\")\n                depSel = true;\n            else if ((((_a = addresses[dep.id]) !== null && _a !== void 0 ? _a : 1) & 1) == 0)\n                depAddrs.push(addresses[dep.id]);\n        }\n        return (state, tr) => {\n            if (!tr || tr.reconfigured) {\n                state.values[idx] = getter(state);\n                return 1 /* Changed */;\n            }\n            else {\n                let depChanged = (depDoc && tr.docChanged) || (depSel && (tr.docChanged || tr.selection)) ||\n                    depAddrs.some(addr => (ensureAddr(state, addr) & 1 /* Changed */) > 0);\n                if (!depChanged)\n                    return 0;\n                let newVal = getter(state), oldVal = tr.startState.values[idx];\n                if (multi ? compareArray(newVal, oldVal, compare) : compare(newVal, oldVal))\n                    return 0;\n                state.values[idx] = newVal;\n                return 1 /* Changed */;\n            }\n        };\n    }\n}\nfunction compareArray(a, b, compare) {\n    if (a.length != b.length)\n        return false;\n    for (let i = 0; i < a.length; i++)\n        if (!compare(a[i], b[i]))\n            return false;\n    return true;\n}\nfunction dynamicFacetSlot(addresses, facet, providers) {\n    let providerAddrs = providers.map(p => addresses[p.id]);\n    let providerTypes = providers.map(p => p.type);\n    let dynamic = providerAddrs.filter(p => !(p & 1));\n    let idx = addresses[facet.id] >> 1;\n    return (state, tr) => {\n        let oldAddr = !tr ? null : tr.reconfigured ? tr.startState.config.address[facet.id] : idx << 1;\n        let changed = oldAddr == null;\n        for (let dynAddr of dynamic) {\n            if (ensureAddr(state, dynAddr) & 1 /* Changed */)\n                changed = true;\n        }\n        if (!changed)\n            return 0;\n        let values = [];\n        for (let i = 0; i < providerAddrs.length; i++) {\n            let value = getAddr(state, providerAddrs[i]);\n            if (providerTypes[i] == 2 /* Multi */)\n                for (let val of value)\n                    values.push(val);\n            else\n                values.push(value);\n        }\n        let newVal = facet.combine(values);\n        if (oldAddr != null && facet.compare(newVal, getAddr(tr.startState, oldAddr)))\n            return 0;\n        state.values[idx] = newVal;\n        return 1 /* Changed */;\n    };\n}\nfunction maybeIndex(state, id) {\n    let found = state.config.address[id];\n    return found == null ? null : found >> 1;\n}\nconst initField = /*@__PURE__*/Facet.define({ static: true });\n/**\nFields can store additional information in an editor state, and\nkeep it in sync with the rest of the state.\n*/\nclass StateField {\n    constructor(\n    /**\n    @internal\n    */\n    id, createF, updateF, compareF, \n    /**\n    @internal\n    */\n    spec) {\n        this.id = id;\n        this.createF = createF;\n        this.updateF = updateF;\n        this.compareF = compareF;\n        this.spec = spec;\n        /**\n        @internal\n        */\n        this.provides = undefined;\n    }\n    /**\n    Define a state field.\n    */\n    static define(config) {\n        let field = new StateField(nextID++, config.create, config.update, config.compare || ((a, b) => a === b), config);\n        if (config.provide)\n            field.provides = config.provide(field);\n        return field;\n    }\n    create(state) {\n        let init = state.facet(initField).find(i => i.field == this);\n        return ((init === null || init === void 0 ? void 0 : init.create) || this.createF)(state);\n    }\n    /**\n    @internal\n    */\n    slot(addresses) {\n        let idx = addresses[this.id] >> 1;\n        return (state, tr) => {\n            if (!tr || (tr.reconfigured && maybeIndex(tr.startState, this.id) == null)) {\n                state.values[idx] = this.create(state);\n                return 1 /* Changed */;\n            }\n            let oldVal, changed = 0;\n            if (tr.reconfigured) {\n                oldVal = tr.startState.values[maybeIndex(tr.startState, this.id)];\n                changed = 1 /* Changed */;\n            }\n            else {\n                oldVal = tr.startState.values[idx];\n            }\n            let value = this.updateF(oldVal, tr);\n            if (!changed && !this.compareF(oldVal, value))\n                changed = 1 /* Changed */;\n            if (changed)\n                state.values[idx] = value;\n            return changed;\n        };\n    }\n    /**\n    Returns an extension that enables this field and overrides the\n    way it is initialized. Can be useful when you need to provide a\n    non-default starting value for the field.\n    */\n    init(create) {\n        return [this, initField.of({ field: this, create })];\n    }\n    /**\n    State field instances can be used as\n    [`Extension`](https://codemirror.net/6/docs/ref/#state.Extension) values to enable the field in a\n    given state.\n    */\n    get extension() { return this; }\n}\nconst Prec_ = { fallback: 3, default: 2, extend: 1, override: 0 };\nfunction prec(value) {\n    return (ext) => new PrecExtension(ext, value);\n}\n/**\nBy default extensions are registered in the order they are found\nin the flattened form of nested array that was provided.\nIndividual extension values can be assigned a precedence to\noverride this. Extensions that do not have a precedence set get\nthe precedence of the nearest parent with a precedence, or\n[`default`](https://codemirror.net/6/docs/ref/#state.Prec.default) if there is no such parent. The\nfinal ordering of extensions is determined by first sorting by\nprecedence and then by order within each precedence.\n*/\nconst Prec = {\n    /**\n    A precedence below the default precedence, which will cause\n    default-precedence extensions to override it even if they are\n    specified later in the extension ordering.\n    */\n    fallback: /*@__PURE__*/prec(Prec_.fallback),\n    /**\n    The regular default precedence.\n    */\n    default: /*@__PURE__*/prec(Prec_.default),\n    /**\n    A higher-than-default precedence.\n    */\n    extend: /*@__PURE__*/prec(Prec_.extend),\n    /**\n    Precedence above the `default` and `extend` precedences.\n    */\n    override: /*@__PURE__*/prec(Prec_.override)\n};\nclass PrecExtension {\n    constructor(inner, prec) {\n        this.inner = inner;\n        this.prec = prec;\n    }\n}\n/**\nExtension compartments can be used to make a configuration\ndynamic. By [wrapping](https://codemirror.net/6/docs/ref/#state.Compartment.of) part of your\nconfiguration in a compartment, you can later\n[replace](https://codemirror.net/6/docs/ref/#state.Compartment.reconfigure) that part through a\ntransaction.\n*/\nclass Compartment {\n    /**\n    Create an instance of this compartment to add to your [state\n    configuration](https://codemirror.net/6/docs/ref/#state.EditorStateConfig.extensions).\n    */\n    of(ext) { return new CompartmentInstance(this, ext); }\n    /**\n    Create an [effect](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects) that\n    reconfigures this compartment.\n    */\n    reconfigure(content) {\n        return Compartment.reconfigure.of({ compartment: this, extension: content });\n    }\n    /**\n    Get the current content of the compartment in the state, or\n    `undefined` if it isn't present.\n    */\n    get(state) {\n        return state.config.compartments.get(this);\n    }\n}\nclass CompartmentInstance {\n    constructor(compartment, inner) {\n        this.compartment = compartment;\n        this.inner = inner;\n    }\n}\nclass Configuration {\n    constructor(base, compartments, dynamicSlots, address, staticValues) {\n        this.base = base;\n        this.compartments = compartments;\n        this.dynamicSlots = dynamicSlots;\n        this.address = address;\n        this.staticValues = staticValues;\n        this.statusTemplate = [];\n        while (this.statusTemplate.length < dynamicSlots.length)\n            this.statusTemplate.push(0 /* Uninitialized */);\n    }\n    staticFacet(facet) {\n        let addr = this.address[facet.id];\n        return addr == null ? facet.default : this.staticValues[addr >> 1];\n    }\n    static resolve(base, compartments, oldState) {\n        let fields = [];\n        let facets = Object.create(null);\n        let newCompartments = new Map();\n        for (let ext of flatten(base, compartments, newCompartments)) {\n            if (ext instanceof StateField)\n                fields.push(ext);\n            else\n                (facets[ext.facet.id] || (facets[ext.facet.id] = [])).push(ext);\n        }\n        let address = Object.create(null);\n        let staticValues = [];\n        let dynamicSlots = [];\n        for (let field of fields) {\n            address[field.id] = dynamicSlots.length << 1;\n            dynamicSlots.push(a => field.slot(a));\n        }\n        for (let id in facets) {\n            let providers = facets[id], facet = providers[0].facet;\n            if (providers.every(p => p.type == 0 /* Static */)) {\n                address[facet.id] = (staticValues.length << 1) | 1;\n                let value = facet.combine(providers.map(p => p.value));\n                let oldAddr = oldState ? oldState.config.address[facet.id] : null;\n                if (oldAddr != null) {\n                    let oldVal = getAddr(oldState, oldAddr);\n                    if (facet.compare(value, oldVal))\n                        value = oldVal;\n                }\n                staticValues.push(value);\n            }\n            else {\n                for (let p of providers) {\n                    if (p.type == 0 /* Static */) {\n                        address[p.id] = (staticValues.length << 1) | 1;\n                        staticValues.push(p.value);\n                    }\n                    else {\n                        address[p.id] = dynamicSlots.length << 1;\n                        dynamicSlots.push(a => p.dynamicSlot(a));\n                    }\n                }\n                address[facet.id] = dynamicSlots.length << 1;\n                dynamicSlots.push(a => dynamicFacetSlot(a, facet, providers));\n            }\n        }\n        return new Configuration(base, newCompartments, dynamicSlots.map(f => f(address)), address, staticValues);\n    }\n}\nfunction flatten(extension, compartments, newCompartments) {\n    let result = [[], [], [], []];\n    let seen = new Map();\n    function inner(ext, prec) {\n        let known = seen.get(ext);\n        if (known != null) {\n            if (known >= prec)\n                return;\n            let found = result[known].indexOf(ext);\n            if (found > -1)\n                result[known].splice(found, 1);\n            if (ext instanceof CompartmentInstance)\n                newCompartments.delete(ext.compartment);\n        }\n        seen.set(ext, prec);\n        if (Array.isArray(ext)) {\n            for (let e of ext)\n                inner(e, prec);\n        }\n        else if (ext instanceof CompartmentInstance) {\n            if (newCompartments.has(ext.compartment))\n                throw new RangeError(`Duplicate use of compartment in extensions`);\n            let content = compartments.get(ext.compartment) || ext.inner;\n            newCompartments.set(ext.compartment, content);\n            inner(content, prec);\n        }\n        else if (ext instanceof PrecExtension) {\n            inner(ext.inner, ext.prec);\n        }\n        else if (ext instanceof StateField) {\n            result[prec].push(ext);\n            if (ext.provides)\n                inner(ext.provides, prec);\n        }\n        else if (ext instanceof FacetProvider) {\n            result[prec].push(ext);\n            if (ext.facet.extensions)\n                inner(ext.facet.extensions, prec);\n        }\n        else {\n            let content = ext.extension;\n            if (!content)\n                throw new Error(`Unrecognized extension value in extension set (${ext}). This sometimes happens because multiple instances of @codemirror/state are loaded, breaking instanceof checks.`);\n            inner(content, prec);\n        }\n    }\n    inner(extension, Prec_.default);\n    return result.reduce((a, b) => a.concat(b));\n}\nfunction ensureAddr(state, addr) {\n    if (addr & 1)\n        return 2 /* Computed */;\n    let idx = addr >> 1;\n    let status = state.status[idx];\n    if (status == 4 /* Computing */)\n        throw new Error(\"Cyclic dependency between fields and/or facets\");\n    if (status & 2 /* Computed */)\n        return status;\n    state.status[idx] = 4 /* Computing */;\n    let changed = state.config.dynamicSlots[idx](state, state.applying);\n    return state.status[idx] = 2 /* Computed */ | changed;\n}\nfunction getAddr(state, addr) {\n    return addr & 1 ? state.config.staticValues[addr >> 1] : state.values[addr >> 1];\n}\n\nconst languageData = /*@__PURE__*/Facet.define();\nconst allowMultipleSelections = /*@__PURE__*/Facet.define({\n    combine: values => values.some(v => v),\n    static: true\n});\nconst lineSeparator = /*@__PURE__*/Facet.define({\n    combine: values => values.length ? values[0] : undefined,\n    static: true\n});\nconst changeFilter = /*@__PURE__*/Facet.define();\nconst transactionFilter = /*@__PURE__*/Facet.define();\nconst transactionExtender = /*@__PURE__*/Facet.define();\n\n/**\nAnnotations are tagged values that are used to add metadata to\ntransactions in an extensible way. They should be used to model\nthings that effect the entire transaction (such as its [time\nstamp](https://codemirror.net/6/docs/ref/#state.Transaction^time) or information about its\n[origin](https://codemirror.net/6/docs/ref/#state.Transaction^userEvent)). For effects that happen\n_alongside_ the other changes made by the transaction, [state\neffects](https://codemirror.net/6/docs/ref/#state.StateEffect) are more appropriate.\n*/\nclass Annotation {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The annotation type.\n    */\n    type, \n    /**\n    The value of this annotation.\n    */\n    value) {\n        this.type = type;\n        this.value = value;\n    }\n    /**\n    Define a new type of annotation.\n    */\n    static define() { return new AnnotationType(); }\n}\n/**\nMarker that identifies a type of [annotation](https://codemirror.net/6/docs/ref/#state.Annotation).\n*/\nclass AnnotationType {\n    /**\n    Create an instance of this annotation.\n    */\n    of(value) { return new Annotation(this, value); }\n}\n/**\nRepresentation of a type of state effect. Defined with\n[`StateEffect.define`](https://codemirror.net/6/docs/ref/#state.StateEffect^define).\n*/\nclass StateEffectType {\n    /**\n    @internal\n    */\n    constructor(\n    // The `any` types in these function types are there to work\n    // around TypeScript issue #37631, where the type guard on\n    // `StateEffect.is` mysteriously stops working when these properly\n    // have type `Value`.\n    /**\n    @internal\n    */\n    map) {\n        this.map = map;\n    }\n    /**\n    Create a [state effect](https://codemirror.net/6/docs/ref/#state.StateEffect) instance of this\n    type.\n    */\n    of(value) { return new StateEffect(this, value); }\n}\n/**\nState effects can be used to represent additional effects\nassociated with a [transaction](https://codemirror.net/6/docs/ref/#state.Transaction.effects). They\nare often useful to model changes to custom [state\nfields](https://codemirror.net/6/docs/ref/#state.StateField), when those changes aren't implicit in\ndocument or selection changes.\n*/\nclass StateEffect {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    @internal\n    */\n    type, \n    /**\n    The value of this effect.\n    */\n    value) {\n        this.type = type;\n        this.value = value;\n    }\n    /**\n    Map this effect through a position mapping. Will return\n    `undefined` when that ends up deleting the effect.\n    */\n    map(mapping) {\n        let mapped = this.type.map(this.value, mapping);\n        return mapped === undefined ? undefined : mapped == this.value ? this : new StateEffect(this.type, mapped);\n    }\n    /**\n    Tells you whether this effect object is of a given\n    [type](https://codemirror.net/6/docs/ref/#state.StateEffectType).\n    */\n    is(type) { return this.type == type; }\n    /**\n    Define a new effect type. The type parameter indicates the type\n    of values that his effect holds.\n    */\n    static define(spec = {}) {\n        return new StateEffectType(spec.map || (v => v));\n    }\n    /**\n    Map an array of effects through a change set.\n    */\n    static mapEffects(effects, mapping) {\n        if (!effects.length)\n            return effects;\n        let result = [];\n        for (let effect of effects) {\n            let mapped = effect.map(mapping);\n            if (mapped)\n                result.push(mapped);\n        }\n        return result;\n    }\n}\n/**\nThis effect can be used to reconfigure the root extensions of\nthe editor. Doing this will discard any extensions\n[appended](https://codemirror.net/6/docs/ref/#state.StateEffect^appendConfig), but does not reset\nthe content of [reconfigured](https://codemirror.net/6/docs/ref/#state.Compartment.reconfigure)\ncompartments.\n*/\nStateEffect.reconfigure = /*@__PURE__*/StateEffect.define();\n/**\nAppend extensions to the top-level configuration of the editor.\n*/\nStateEffect.appendConfig = /*@__PURE__*/StateEffect.define();\n/**\nChanges to the editor state are grouped into transactions.\nTypically, a user action creates a single transaction, which may\ncontain any number of document changes, may change the selection,\nor have other effects. Create a transaction by calling\n[`EditorState.update`](https://codemirror.net/6/docs/ref/#state.EditorState.update).\n*/\nclass Transaction {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The state from which the transaction starts.\n    */\n    startState, \n    /**\n    The document changes made by this transaction.\n    */\n    changes, \n    /**\n    The selection set by this transaction, or undefined if it\n    doesn't explicitly set a selection.\n    */\n    selection, \n    /**\n    The effects added to the transaction.\n    */\n    effects, \n    /**\n    @internal\n    */\n    annotations, \n    /**\n    Whether the selection should be scrolled into view after this\n    transaction is dispatched.\n    */\n    scrollIntoView) {\n        this.startState = startState;\n        this.changes = changes;\n        this.selection = selection;\n        this.effects = effects;\n        this.annotations = annotations;\n        this.scrollIntoView = scrollIntoView;\n        /**\n        @internal\n        */\n        this._doc = null;\n        /**\n        @internal\n        */\n        this._state = null;\n        if (selection)\n            checkSelection(selection, changes.newLength);\n        if (!annotations.some((a) => a.type == Transaction.time))\n            this.annotations = annotations.concat(Transaction.time.of(Date.now()));\n    }\n    /**\n    The new document produced by the transaction. Contrary to\n    [`.state`](https://codemirror.net/6/docs/ref/#state.Transaction.state)`.doc`, accessing this won't\n    force the entire new state to be computed right away, so it is\n    recommended that [transaction\n    filters](https://codemirror.net/6/docs/ref/#state.EditorState^transactionFilter) use this getter\n    when they need to look at the new document.\n    */\n    get newDoc() {\n        return this._doc || (this._doc = this.changes.apply(this.startState.doc));\n    }\n    /**\n    The new selection produced by the transaction. If\n    [`this.selection`](https://codemirror.net/6/docs/ref/#state.Transaction.selection) is undefined,\n    this will [map](https://codemirror.net/6/docs/ref/#state.EditorSelection.map) the start state's\n    current selection through the changes made by the transaction.\n    */\n    get newSelection() {\n        return this.selection || this.startState.selection.map(this.changes);\n    }\n    /**\n    The new state created by the transaction. Computed on demand\n    (but retained for subsequent access), so itis recommended not to\n    access it in [transaction\n    filters](https://codemirror.net/6/docs/ref/#state.EditorState^transactionFilter) when possible.\n    */\n    get state() {\n        if (!this._state)\n            this.startState.applyTransaction(this);\n        return this._state;\n    }\n    /**\n    Get the value of the given annotation type, if any.\n    */\n    annotation(type) {\n        for (let ann of this.annotations)\n            if (ann.type == type)\n                return ann.value;\n        return undefined;\n    }\n    /**\n    Indicates whether the transaction changed the document.\n    */\n    get docChanged() { return !this.changes.empty; }\n    /**\n    Indicates whether this transaction reconfigures the state\n    (through a [configuration compartment](https://codemirror.net/6/docs/ref/#state.Compartment) or\n    with a top-level configuration\n    [effect](https://codemirror.net/6/docs/ref/#state.StateEffect^reconfigure).\n    */\n    get reconfigured() { return this.startState.config != this.state.config; }\n}\n/**\nAnnotation used to store transaction timestamps.\n*/\nTransaction.time = /*@__PURE__*/Annotation.define();\n/**\nAnnotation used to associate a transaction with a user interface\nevent. The view will set this to...\n\n - `\"input\"` when the user types text\n - `\"delete\"` when the user deletes the selection or text near the selection\n - `\"keyboardselection\"` when moving the selection via the keyboard\n - `\"pointerselection\"` when moving the selection through the pointing device\n - `\"paste\"` when pasting content\n - `\"cut\"` when cutting\n - `\"drop\"` when content is inserted via drag-and-drop\n*/\nTransaction.userEvent = /*@__PURE__*/Annotation.define();\n/**\nAnnotation indicating whether a transaction should be added to\nthe undo history or not.\n*/\nTransaction.addToHistory = /*@__PURE__*/Annotation.define();\n/**\nAnnotation indicating (when present and true) that a transaction\nrepresents a change made by some other actor, not the user. This\nis used, for example, to tag other people's changes in\ncollaborative editing.\n*/\nTransaction.remote = /*@__PURE__*/Annotation.define();\nfunction joinRanges(a, b) {\n    let result = [];\n    for (let iA = 0, iB = 0;;) {\n        let from, to;\n        if (iA < a.length && (iB == b.length || b[iB] >= a[iA])) {\n            from = a[iA++];\n            to = a[iA++];\n        }\n        else if (iB < b.length) {\n            from = b[iB++];\n            to = b[iB++];\n        }\n        else\n            return result;\n        if (!result.length || result[result.length - 1] < from)\n            result.push(from, to);\n        else if (result[result.length - 1] < to)\n            result[result.length - 1] = to;\n    }\n}\nfunction mergeTransaction(a, b, sequential) {\n    var _a;\n    let mapForA, mapForB, changes;\n    if (sequential) {\n        mapForA = b.changes;\n        mapForB = ChangeSet.empty(b.changes.length);\n        changes = a.changes.compose(b.changes);\n    }\n    else {\n        mapForA = b.changes.map(a.changes);\n        mapForB = a.changes.mapDesc(b.changes, true);\n        changes = a.changes.compose(mapForA);\n    }\n    return {\n        changes,\n        selection: b.selection ? b.selection.map(mapForB) : (_a = a.selection) === null || _a === void 0 ? void 0 : _a.map(mapForA),\n        effects: StateEffect.mapEffects(a.effects, mapForA).concat(StateEffect.mapEffects(b.effects, mapForB)),\n        annotations: a.annotations.length ? a.annotations.concat(b.annotations) : b.annotations,\n        scrollIntoView: a.scrollIntoView || b.scrollIntoView\n    };\n}\nfunction resolveTransactionInner(state, spec, docSize) {\n    let sel = spec.selection;\n    return {\n        changes: spec.changes instanceof ChangeSet ? spec.changes\n            : ChangeSet.of(spec.changes || [], docSize, state.facet(lineSeparator)),\n        selection: sel && (sel instanceof EditorSelection ? sel : EditorSelection.single(sel.anchor, sel.head)),\n        effects: asArray(spec.effects),\n        annotations: asArray(spec.annotations),\n        scrollIntoView: !!spec.scrollIntoView\n    };\n}\nfunction resolveTransaction(state, specs, filter) {\n    let s = resolveTransactionInner(state, specs.length ? specs[0] : {}, state.doc.length);\n    if (specs.length && specs[0].filter === false)\n        filter = false;\n    for (let i = 1; i < specs.length; i++) {\n        if (specs[i].filter === false)\n            filter = false;\n        let seq = !!specs[i].sequential;\n        s = mergeTransaction(s, resolveTransactionInner(state, specs[i], seq ? s.changes.newLength : state.doc.length), seq);\n    }\n    let tr = new Transaction(state, s.changes, s.selection, s.effects, s.annotations, s.scrollIntoView);\n    return extendTransaction(filter ? filterTransaction(tr) : tr);\n}\n// Finish a transaction by applying filters if necessary.\nfunction filterTransaction(tr) {\n    let state = tr.startState;\n    // Change filters\n    let result = true;\n    for (let filter of state.facet(changeFilter)) {\n        let value = filter(tr);\n        if (value === false) {\n            result = false;\n            break;\n        }\n        if (Array.isArray(value))\n            result = result === true ? value : joinRanges(result, value);\n    }\n    if (result !== true) {\n        let changes, back;\n        if (result === false) {\n            back = tr.changes.invertedDesc;\n            changes = ChangeSet.empty(state.doc.length);\n        }\n        else {\n            let filtered = tr.changes.filter(result);\n            changes = filtered.changes;\n            back = filtered.filtered.invertedDesc;\n        }\n        tr = new Transaction(state, changes, tr.selection && tr.selection.map(back), StateEffect.mapEffects(tr.effects, back), tr.annotations, tr.scrollIntoView);\n    }\n    // Transaction filters\n    let filters = state.facet(transactionFilter);\n    for (let i = filters.length - 1; i >= 0; i--) {\n        let filtered = filters[i](tr);\n        if (filtered instanceof Transaction)\n            tr = filtered;\n        else if (Array.isArray(filtered) && filtered.length == 1 && filtered[0] instanceof Transaction)\n            tr = filtered[0];\n        else\n            tr = resolveTransaction(state, asArray(filtered), false);\n    }\n    return tr;\n}\nfunction extendTransaction(tr) {\n    let state = tr.startState, extenders = state.facet(transactionExtender), spec = tr;\n    for (let i = extenders.length - 1; i >= 0; i--) {\n        let extension = extenders[i](tr);\n        if (extension && Object.keys(extension).length)\n            spec = mergeTransaction(tr, resolveTransactionInner(state, extension, tr.changes.newLength), true);\n    }\n    return spec == tr ? tr : new Transaction(state, tr.changes, tr.selection, spec.effects, spec.annotations, spec.scrollIntoView);\n}\nconst none = [];\nfunction asArray(value) {\n    return value == null ? none : Array.isArray(value) ? value : [value];\n}\n\n/**\nThe categories produced by a [character\ncategorizer](https://codemirror.net/6/docs/ref/#state.EditorState.charCategorizer). These are used\ndo things like selecting by word.\n*/\nvar CharCategory = /*@__PURE__*/(function (CharCategory) {\n    /**\n    Word characters.\n    */\n    CharCategory[CharCategory[\"Word\"] = 0] = \"Word\";\n    /**\n    Whitespace.\n    */\n    CharCategory[CharCategory[\"Space\"] = 1] = \"Space\";\n    /**\n    Anything else.\n    */\n    CharCategory[CharCategory[\"Other\"] = 2] = \"Other\";\nreturn CharCategory})(CharCategory || (CharCategory = {}));\nconst nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\nlet wordChar;\ntry {\n    wordChar = /*@__PURE__*/new RegExp(\"[\\\\p{Alphabetic}\\\\p{Number}_]\", \"u\");\n}\ncatch (_) { }\nfunction hasWordChar(str) {\n    if (wordChar)\n        return wordChar.test(str);\n    for (let i = 0; i < str.length; i++) {\n        let ch = str[i];\n        if (/\\w/.test(ch) || ch > \"\\x80\" && (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)))\n            return true;\n    }\n    return false;\n}\nfunction makeCategorizer(wordChars) {\n    return (char) => {\n        if (!/\\S/.test(char))\n            return CharCategory.Space;\n        if (hasWordChar(char))\n            return CharCategory.Word;\n        for (let i = 0; i < wordChars.length; i++)\n            if (char.indexOf(wordChars[i]) > -1)\n                return CharCategory.Word;\n        return CharCategory.Other;\n    };\n}\n\n/**\nThe editor state class is a persistent (immutable) data structure.\nTo update a state, you [create](https://codemirror.net/6/docs/ref/#state.EditorState.update) a\n[transaction](https://codemirror.net/6/docs/ref/#state.Transaction), which produces a _new_ state\ninstance, without modifying the original object.\n\nAs such, _never_ mutate properties of a state directly. That'll\njust break things.\n*/\nclass EditorState {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    @internal\n    */\n    config, \n    /**\n    The current document.\n    */\n    doc, \n    /**\n    The current selection.\n    */\n    selection, tr = null) {\n        this.config = config;\n        this.doc = doc;\n        this.selection = selection;\n        /**\n        @internal\n        */\n        this.applying = null;\n        this.status = config.statusTemplate.slice();\n        if (tr && tr.startState.config == config) {\n            this.values = tr.startState.values.slice();\n        }\n        else {\n            this.values = config.dynamicSlots.map(_ => null);\n            // Copy over old values for shared facets/fields if this is a reconfigure\n            if (tr)\n                for (let id in config.address) {\n                    let cur = config.address[id], prev = tr.startState.config.address[id];\n                    if (prev != null && (cur & 1) == 0)\n                        this.values[cur >> 1] = getAddr(tr.startState, prev);\n                }\n        }\n        this.applying = tr;\n        // Fill in the computed state immediately, so that further queries\n        // for it made during the update return this state\n        if (tr)\n            tr._state = this;\n        for (let i = 0; i < this.config.dynamicSlots.length; i++)\n            ensureAddr(this, i << 1);\n        this.applying = null;\n    }\n    field(field, require = true) {\n        let addr = this.config.address[field.id];\n        if (addr == null) {\n            if (require)\n                throw new RangeError(\"Field is not present in this state\");\n            return undefined;\n        }\n        ensureAddr(this, addr);\n        return getAddr(this, addr);\n    }\n    /**\n    Create a [transaction](https://codemirror.net/6/docs/ref/#state.Transaction) that updates this\n    state. Any number of [transaction specs](https://codemirror.net/6/docs/ref/#state.TransactionSpec)\n    can be passed. Unless\n    [`sequential`](https://codemirror.net/6/docs/ref/#state.TransactionSpec.sequential) is set, the\n    [changes](https://codemirror.net/6/docs/ref/#state.TransactionSpec.changes) (if any) of each spec\n    are assumed to start in the _current_ document (not the document\n    produced by previous specs), and its\n    [selection](https://codemirror.net/6/docs/ref/#state.TransactionSpec.selection) and\n    [effects](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects) are assumed to refer\n    to the document created by its _own_ changes. The resulting\n    transaction contains the combined effect of all the different\n    specs. For [selection](https://codemirror.net/6/docs/ref/#state.TransactionSpec.selection), later\n    specs take precedence over earlier ones.\n    */\n    update(...specs) {\n        return resolveTransaction(this, specs, true);\n    }\n    /**\n    @internal\n    */\n    applyTransaction(tr) {\n        let conf = this.config, { base, compartments } = conf;\n        for (let effect of tr.effects) {\n            if (effect.is(Compartment.reconfigure)) {\n                if (conf) {\n                    compartments = new Map;\n                    conf.compartments.forEach((val, key) => compartments.set(key, val));\n                    conf = null;\n                }\n                compartments.set(effect.value.compartment, effect.value.extension);\n            }\n            else if (effect.is(StateEffect.reconfigure)) {\n                conf = null;\n                base = effect.value;\n            }\n            else if (effect.is(StateEffect.appendConfig)) {\n                conf = null;\n                base = asArray(base).concat(effect.value);\n            }\n        }\n        new EditorState(conf || Configuration.resolve(base, compartments, this), tr.newDoc, tr.newSelection, tr);\n    }\n    /**\n    Create a [transaction spec](https://codemirror.net/6/docs/ref/#state.TransactionSpec) that\n    replaces every selection range with the given content.\n    */\n    replaceSelection(text) {\n        if (typeof text == \"string\")\n            text = this.toText(text);\n        return this.changeByRange(range => ({ changes: { from: range.from, to: range.to, insert: text },\n            range: EditorSelection.cursor(range.from + text.length) }));\n    }\n    /**\n    Create a set of changes and a new selection by running the given\n    function for each range in the active selection. The function\n    can return an optional set of changes (in the coordinate space\n    of the start document), plus an updated range (in the coordinate\n    space of the document produced by the call's own changes). This\n    method will merge all the changes and ranges into a single\n    changeset and selection, and return it as a [transaction\n    spec](https://codemirror.net/6/docs/ref/#state.TransactionSpec), which can be passed to\n    [`update`](https://codemirror.net/6/docs/ref/#state.EditorState.update).\n    */\n    changeByRange(f) {\n        let sel = this.selection;\n        let result1 = f(sel.ranges[0]);\n        let changes = this.changes(result1.changes), ranges = [result1.range];\n        let effects = asArray(result1.effects);\n        for (let i = 1; i < sel.ranges.length; i++) {\n            let result = f(sel.ranges[i]);\n            let newChanges = this.changes(result.changes), newMapped = newChanges.map(changes);\n            for (let j = 0; j < i; j++)\n                ranges[j] = ranges[j].map(newMapped);\n            let mapBy = changes.mapDesc(newChanges, true);\n            ranges.push(result.range.map(mapBy));\n            changes = changes.compose(newMapped);\n            effects = StateEffect.mapEffects(effects, newMapped).concat(StateEffect.mapEffects(asArray(result.effects), mapBy));\n        }\n        return {\n            changes,\n            selection: EditorSelection.create(ranges, sel.mainIndex),\n            effects\n        };\n    }\n    /**\n    Create a [change set](https://codemirror.net/6/docs/ref/#state.ChangeSet) from the given change\n    description, taking the state's document length and line\n    separator into account.\n    */\n    changes(spec = []) {\n        if (spec instanceof ChangeSet)\n            return spec;\n        return ChangeSet.of(spec, this.doc.length, this.facet(EditorState.lineSeparator));\n    }\n    /**\n    Using the state's [line\n    separator](https://codemirror.net/6/docs/ref/#state.EditorState^lineSeparator), create a\n    [`Text`](https://codemirror.net/6/docs/ref/#text.Text) instance from the given string.\n    */\n    toText(string) {\n        return Text.of(string.split(this.facet(EditorState.lineSeparator) || DefaultSplit));\n    }\n    /**\n    Return the given range of the document as a string.\n    */\n    sliceDoc(from = 0, to = this.doc.length) {\n        return this.doc.sliceString(from, to, this.lineBreak);\n    }\n    /**\n    Get the value of a state [facet](https://codemirror.net/6/docs/ref/#state.Facet).\n    */\n    facet(facet) {\n        let addr = this.config.address[facet.id];\n        if (addr == null)\n            return facet.default;\n        ensureAddr(this, addr);\n        return getAddr(this, addr);\n    }\n    /**\n    Convert this state to a JSON-serializable object. When custom\n    fields should be serialized, you can pass them in as an object\n    mapping property names (in the resulting object, which should\n    not use `doc` or `selection`) to fields.\n    */\n    toJSON(fields) {\n        let result = {\n            doc: this.sliceDoc(),\n            selection: this.selection.toJSON()\n        };\n        if (fields)\n            for (let prop in fields) {\n                let value = fields[prop];\n                if (value instanceof StateField)\n                    result[prop] = value.spec.toJSON(this.field(fields[prop]), this);\n            }\n        return result;\n    }\n    /**\n    Deserialize a state from its JSON representation. When custom\n    fields should be deserialized, pass the same object you passed\n    to [`toJSON`](https://codemirror.net/6/docs/ref/#state.EditorState.toJSON) when serializing as\n    third argument.\n    */\n    static fromJSON(json, config = {}, fields) {\n        if (!json || typeof json.doc != \"string\")\n            throw new RangeError(\"Invalid JSON representation for EditorState\");\n        let fieldInit = [];\n        if (fields)\n            for (let prop in fields) {\n                let field = fields[prop], value = json[prop];\n                fieldInit.push(field.init(state => field.spec.fromJSON(value, state)));\n            }\n        return EditorState.create({\n            doc: json.doc,\n            selection: EditorSelection.fromJSON(json.selection),\n            extensions: config.extensions ? fieldInit.concat([config.extensions]) : fieldInit\n        });\n    }\n    /**\n    Create a new state. You'll usually only need this when\n    initializing an editor—updated states are created by applying\n    transactions.\n    */\n    static create(config = {}) {\n        let configuration = Configuration.resolve(config.extensions || [], new Map);\n        let doc = config.doc instanceof Text ? config.doc\n            : Text.of((config.doc || \"\").split(configuration.staticFacet(EditorState.lineSeparator) || DefaultSplit));\n        let selection = !config.selection ? EditorSelection.single(0)\n            : config.selection instanceof EditorSelection ? config.selection\n                : EditorSelection.single(config.selection.anchor, config.selection.head);\n        checkSelection(selection, doc.length);\n        if (!configuration.staticFacet(allowMultipleSelections))\n            selection = selection.asSingle();\n        return new EditorState(configuration, doc, selection);\n    }\n    /**\n    The size (in columns) of a tab in the document, determined by\n    the [`tabSize`](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) facet.\n    */\n    get tabSize() { return this.facet(EditorState.tabSize); }\n    /**\n    Get the proper [line-break](https://codemirror.net/6/docs/ref/#state.EditorState^lineSeparator)\n    string for this state.\n    */\n    get lineBreak() { return this.facet(EditorState.lineSeparator) || \"\\n\"; }\n    /**\n    Look up a translation for the given phrase (via the\n    [`phrases`](https://codemirror.net/6/docs/ref/#state.EditorState^phrases) facet), or return the\n    original string if no translation is found.\n    */\n    phrase(phrase) {\n        for (let map of this.facet(EditorState.phrases))\n            if (Object.prototype.hasOwnProperty.call(map, phrase))\n                return map[phrase];\n        return phrase;\n    }\n    /**\n    Find the values for a given language data field, provided by the\n    the [`languageData`](https://codemirror.net/6/docs/ref/#state.EditorState^languageData) facet.\n    */\n    languageDataAt(name, pos) {\n        let values = [];\n        for (let provider of this.facet(languageData)) {\n            for (let result of provider(this, pos)) {\n                if (Object.prototype.hasOwnProperty.call(result, name))\n                    values.push(result[name]);\n            }\n        }\n        return values;\n    }\n    /**\n    Return a function that can categorize strings (expected to\n    represent a single [grapheme cluster](https://codemirror.net/6/docs/ref/#text.findClusterBreak))\n    into one of:\n    \n     - Word (contains an alphanumeric character or a character\n       explicitly listed in the local language's `\"wordChars\"`\n       language data, which should be a string)\n     - Space (contains only whitespace)\n     - Other (anything else)\n    */\n    charCategorizer(at) {\n        return makeCategorizer(this.languageDataAt(\"wordChars\", at).join(\"\"));\n    }\n    /**\n    Find the word at the given position, meaning the range\n    containing all [word](https://codemirror.net/6/docs/ref/#state.CharCategory.Word) characters\n    around it. If no word characters are adjacent to the position,\n    this returns null.\n    */\n    wordAt(pos) {\n        let { text, from, length } = this.doc.lineAt(pos);\n        let cat = this.charCategorizer(pos);\n        let start = pos - from, end = pos - from;\n        while (start > 0) {\n            let prev = findClusterBreak(text, start, false);\n            if (cat(text.slice(prev, start)) != CharCategory.Word)\n                break;\n            start = prev;\n        }\n        while (end < length) {\n            let next = findClusterBreak(text, end);\n            if (cat(text.slice(end, next)) != CharCategory.Word)\n                break;\n            end = next;\n        }\n        return start == end ? EditorSelection.range(start + from, end + from) : null;\n    }\n}\n/**\nA facet that, when enabled, causes the editor to allow multiple\nranges to be selected. Be careful though, because by default the\neditor relies on the native DOM selection, which cannot handle\nmultiple selections. An extension like\n[`drawSelection`](https://codemirror.net/6/docs/ref/#view.drawSelection) can be used to make\nsecondary selections visible to the user.\n*/\nEditorState.allowMultipleSelections = allowMultipleSelections;\n/**\nConfigures the tab size to use in this state. The first\n(highest-precedence) value of the facet is used. If no value is\ngiven, this defaults to 4.\n*/\nEditorState.tabSize = /*@__PURE__*/Facet.define({\n    combine: values => values.length ? values[0] : 4\n});\n/**\nThe line separator to use. By default, any of `\"\\n\"`, `\"\\r\\n\"`\nand `\"\\r\"` is treated as a separator when splitting lines, and\nlines are joined with `\"\\n\"`.\n\nWhen you configure a value here, only that precise separator\nwill be used, allowing you to round-trip documents through the\neditor without normalizing line separators.\n*/\nEditorState.lineSeparator = lineSeparator;\n/**\nRegisters translation phrases. The\n[`phrase`](https://codemirror.net/6/docs/ref/#state.EditorState.phrase) method will look through\nall objects registered with this facet to find translations for\nits argument.\n*/\nEditorState.phrases = /*@__PURE__*/Facet.define();\n/**\nA facet used to register [language\ndata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt) providers.\n*/\nEditorState.languageData = languageData;\n/**\nFacet used to register change filters, which are called for each\ntransaction (unless explicitly\n[disabled](https://codemirror.net/6/docs/ref/#state.TransactionSpec.filter)), and can suppress\npart of the transaction's changes.\n\nSuch a function can return `true` to indicate that it doesn't\nwant to do anything, `false` to completely stop the changes in\nthe transaction, or a set of ranges in which changes should be\nsuppressed. Such ranges are represented as an array of numbers,\nwith each pair of two number indicating the start and end of a\nrange. So for example `[10, 20, 100, 110]` suppresses changes\nbetween 10 and 20, and between 100 and 110.\n*/\nEditorState.changeFilter = changeFilter;\n/**\nFacet used to register a hook that gets a chance to update or\nreplace transaction specs before they are applied. This will\nonly be applied for transactions that don't have\n[`filter`](https://codemirror.net/6/docs/ref/#state.TransactionSpec.filter) set to `false`. You\ncan either return a single (possibly the input transaction), or\nan array of specs (which will be combined in the same way as the\narguments to [`EditorState.update`](https://codemirror.net/6/docs/ref/#state.EditorState.update)).\n\nWhen possible, it is recommended to avoid accessing\n[`Transaction.state`](https://codemirror.net/6/docs/ref/#state.Transaction.state) in a filter,\nsince it will force creation of a state that will then be\ndiscarded again, if the transaction is actually filtered.\n\n(This functionality should be used with care. Indiscriminately\nmodifying transaction is likely to break something or degrade\nthe user experience.)\n*/\nEditorState.transactionFilter = transactionFilter;\n/**\nThis is a more limited form of\n[`transactionFilter`](https://codemirror.net/6/docs/ref/#state.EditorState^transactionFilter),\nwhich can only add\n[annotations](https://codemirror.net/6/docs/ref/#state.TransactionSpec.annotations) and\n[effects](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects). _But_, this type\nof filter runs even the transaction has disabled regular\n[filtering](https://codemirror.net/6/docs/ref/#state.TransactionSpec.filter), making it suitable\nfor effects that don't need to touch the changes or selection,\nbut do want to process every transaction.\n\nExtenders run _after_ filters, when both are applied.\n*/\nEditorState.transactionExtender = transactionExtender;\nCompartment.reconfigure = /*@__PURE__*/StateEffect.define();\n\n/**\nUtility function for combining behaviors to fill in a config\nobject from an array of provided configs. Will, by default, error\nwhen a field gets two values that aren't `===`-equal, but you can\nprovide combine functions per field to do something else.\n*/\nfunction combineConfig(configs, defaults, // Should hold only the optional properties of Config, but I haven't managed to express that\ncombine = {}) {\n    let result = {};\n    for (let config of configs)\n        for (let key of Object.keys(config)) {\n            let value = config[key], current = result[key];\n            if (current === undefined)\n                result[key] = value;\n            else if (current === value || value === undefined) ; // No conflict\n            else if (Object.hasOwnProperty.call(combine, key))\n                result[key] = combine[key](current, value);\n            else\n                throw new Error(\"Config merge conflict for field \" + key);\n        }\n    for (let key in defaults)\n        if (result[key] === undefined)\n            result[key] = defaults[key];\n    return result;\n}\n\nexport { Annotation, AnnotationType, ChangeDesc, ChangeSet, CharCategory, Compartment, EditorSelection, EditorState, Facet, MapMode, Prec, SelectionRange, StateEffect, StateEffectType, StateField, Transaction, combineConfig };\n","// Compressed representation of the Grapheme_Cluster_Break=Extend\n// information from\n// http://www.unicode.org/Public/13.0.0/ucd/auxiliary/GraphemeBreakProperty.txt.\n// Each pair of elements represents a range, as an offet from the\n// previous range and a length. Numbers are in base-36, with the empty\n// string being a shorthand for 1.\nlet extend = /*@__PURE__*/\"lc,34,7n,7,7b,19,,,,2,,2,,,20,b,1c,l,g,,2t,7,2,6,2,2,,4,z,,u,r,2j,b,1m,9,9,,o,4,,9,,3,,5,17,3,3b,f,,w,1j,,,,4,8,4,,3,7,a,2,t,,1m,,,,2,4,8,,9,,a,2,q,,2,2,1l,,4,2,4,2,2,3,3,,u,2,3,,b,2,1l,,4,5,,2,4,,k,2,m,6,,,1m,,,2,,4,8,,7,3,a,2,u,,1n,,,,c,,9,,14,,3,,1l,3,5,3,,4,7,2,b,2,t,,1m,,2,,2,,3,,5,2,7,2,b,2,s,2,1l,2,,,2,4,8,,9,,a,2,t,,20,,4,,2,3,,,8,,29,,2,7,c,8,2q,,2,9,b,6,22,2,r,,,,,,1j,e,,5,,2,5,b,,10,9,,2u,4,,6,,2,2,2,p,2,4,3,g,4,d,,2,2,6,,f,,jj,3,qa,3,t,3,t,2,u,2,1s,2,,7,8,,2,b,9,,19,3,3b,2,y,,3a,3,4,2,9,,6,3,63,2,2,,1m,,,7,,,,,2,8,6,a,2,,1c,h,1r,4,1c,7,,,5,,14,9,c,2,w,4,2,2,,3,1k,,,2,3,,,3,1m,8,2,2,48,3,,d,,7,4,,6,,3,2,5i,1m,,5,ek,,5f,x,2da,3,3x,,2o,w,fe,6,2x,2,n9w,4,,a,w,2,28,2,7k,,3,,4,,p,2,5,,47,2,q,i,d,,12,8,p,b,1a,3,1c,,2,4,2,2,13,,1v,6,2,2,2,2,c,,8,,1b,,1f,,,3,2,2,5,2,,,16,2,8,,6m,,2,,4,,fn4,,kh,g,g,g,a6,2,gt,,6a,,45,5,1ae,3,,2,5,4,14,3,4,,4l,2,fx,4,ar,2,49,b,4w,,1i,f,1k,3,1d,4,2,2,1x,3,10,5,,8,1q,,c,2,1g,9,a,4,2,,2n,3,2,,,2,6,,4g,,3,8,l,2,1l,2,,,,,m,,e,7,3,5,5f,8,2,3,,,n,,29,,2,6,,,2,,,2,,2,6j,,2,4,6,2,,2,r,2,2d,8,2,,,2,2y,,,,2,6,,,2t,3,2,4,,5,77,9,,2,6t,,a,2,,,4,,40,4,2,2,4,,w,a,14,6,2,4,8,,9,6,2,3,1a,d,,2,ba,7,,6,,,2a,m,2,7,,2,,2,3e,6,3,,,2,,7,,,20,2,3,,,,9n,2,f0b,5,1n,7,t4,,1r,4,29,,f5k,2,43q,,,3,4,5,8,8,2,7,u,4,44,3,1iz,1j,4,1e,8,,e,,m,5,,f,11s,7,,h,2,7,,2,,5,79,7,c5,4,15s,7,31,7,240,5,gx7k,2o,3k,6o\".split(\",\").map(s => s ? parseInt(s, 36) : 1);\n// Convert offsets into absolute values\nfor (let i = 1; i < extend.length; i++)\n    extend[i] += extend[i - 1];\nfunction isExtendingChar(code) {\n    for (let i = 1; i < extend.length; i += 2)\n        if (extend[i] > code)\n            return extend[i - 1] <= code;\n    return false;\n}\nfunction isRegionalIndicator(code) {\n    return code >= 0x1F1E6 && code <= 0x1F1FF;\n}\nconst ZWJ = 0x200d;\n/**\nReturns a next grapheme cluster break _after_ (not equal to)\n`pos`, if `forward` is true, or before otherwise. Returns `pos`\nitself if no further cluster break is available in the string.\nMoves across surrogate pairs, extending characters, characters\njoined with zero-width joiners, and flag emoji.\n*/\nfunction findClusterBreak(str, pos, forward = true) {\n    return (forward ? nextClusterBreak : prevClusterBreak)(str, pos);\n}\nfunction nextClusterBreak(str, pos) {\n    if (pos == str.length)\n        return pos;\n    // If pos is in the middle of a surrogate pair, move to its start\n    if (pos && surrogateLow(str.charCodeAt(pos)) && surrogateHigh(str.charCodeAt(pos - 1)))\n        pos--;\n    let prev = codePointAt(str, pos);\n    pos += codePointSize(prev);\n    while (pos < str.length) {\n        let next = codePointAt(str, pos);\n        if (prev == ZWJ || next == ZWJ || isExtendingChar(next)) {\n            pos += codePointSize(next);\n            prev = next;\n        }\n        else if (isRegionalIndicator(next)) {\n            let countBefore = 0, i = pos - 2;\n            while (i >= 0 && isRegionalIndicator(codePointAt(str, i))) {\n                countBefore++;\n                i -= 2;\n            }\n            if (countBefore % 2 == 0)\n                break;\n            else\n                pos += 2;\n        }\n        else {\n            break;\n        }\n    }\n    return pos;\n}\nfunction prevClusterBreak(str, pos) {\n    while (pos > 0) {\n        let found = nextClusterBreak(str, pos - 2);\n        if (found < pos)\n            return found;\n        pos--;\n    }\n    return 0;\n}\nfunction surrogateLow(ch) { return ch >= 0xDC00 && ch < 0xE000; }\nfunction surrogateHigh(ch) { return ch >= 0xD800 && ch < 0xDC00; }\n/**\nFind the code point at the given position in a string (like the\n[`codePointAt`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt)\nstring method).\n*/\nfunction codePointAt(str, pos) {\n    let code0 = str.charCodeAt(pos);\n    if (!surrogateHigh(code0) || pos + 1 == str.length)\n        return code0;\n    let code1 = str.charCodeAt(pos + 1);\n    if (!surrogateLow(code1))\n        return code0;\n    return ((code0 - 0xd800) << 10) + (code1 - 0xdc00) + 0x10000;\n}\n/**\nGiven a Unicode codepoint, return the JavaScript string that\nrespresents it (like\n[`String.fromCodePoint`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)).\n*/\nfunction fromCodePoint(code) {\n    if (code <= 0xffff)\n        return String.fromCharCode(code);\n    code -= 0x10000;\n    return String.fromCharCode((code >> 10) + 0xd800, (code & 1023) + 0xdc00);\n}\n/**\nThe first character that takes up two positions in a JavaScript\nstring. It is often useful to compare with this after calling\n`codePointAt`, to figure out whether your character takes up 1 or\n2 index positions.\n*/\nfunction codePointSize(code) { return code < 0x10000 ? 1 : 2; }\n\n/**\nCount the column position at the given offset into the string,\ntaking extending characters and tab size into account.\n*/\nfunction countColumn(string, n, tabSize) {\n    for (let i = 0; i < string.length;) {\n        if (string.charCodeAt(i) == 9) {\n            n += tabSize - (n % tabSize);\n            i++;\n        }\n        else {\n            n++;\n            i = findClusterBreak(string, i);\n        }\n    }\n    return n;\n}\n/**\nFind the offset that corresponds to the given column position in a\nstring, taking extending characters and tab size into account.\n*/\nfunction findColumn(string, col, tabSize) {\n    let _compat = arguments[3];\n    if (_compat != null) {\n        col = tabSize;\n        tabSize = _compat;\n    } // FIXME remove at next major version\n    for (let i = 0, n = 0; i < string.length;) {\n        if (n >= col)\n            return i;\n        n += string.charCodeAt(i) == 9 ? tabSize - (n % tabSize) : 1;\n        i = findClusterBreak(string, i);\n    }\n    return string.length;\n}\n\n/**\nThe data structure for documents.\n*/\nclass Text {\n    /**\n    @internal\n    */\n    constructor() { }\n    /**\n    Get the line description around the given position.\n    */\n    lineAt(pos) {\n        if (pos < 0 || pos > this.length)\n            throw new RangeError(`Invalid position ${pos} in document of length ${this.length}`);\n        return this.lineInner(pos, false, 1, 0);\n    }\n    /**\n    Get the description for the given (1-based) line number.\n    */\n    line(n) {\n        if (n < 1 || n > this.lines)\n            throw new RangeError(`Invalid line number ${n} in ${this.lines}-line document`);\n        return this.lineInner(n, true, 1, 0);\n    }\n    /**\n    Replace a range of the text with the given content.\n    */\n    replace(from, to, text) {\n        let parts = [];\n        this.decompose(0, from, parts, 2 /* To */);\n        if (text.length)\n            text.decompose(0, text.length, parts, 1 /* From */ | 2 /* To */);\n        this.decompose(to, this.length, parts, 1 /* From */);\n        return TextNode.from(parts, this.length - (to - from) + text.length);\n    }\n    /**\n    Append another document to this one.\n    */\n    append(other) {\n        return this.replace(this.length, this.length, other);\n    }\n    /**\n    Retrieve the text between the given points.\n    */\n    slice(from, to = this.length) {\n        let parts = [];\n        this.decompose(from, to, parts, 0);\n        return TextNode.from(parts, to - from);\n    }\n    /**\n    Test whether this text is equal to another instance.\n    */\n    eq(other) {\n        if (other == this)\n            return true;\n        if (other.length != this.length || other.lines != this.lines)\n            return false;\n        let a = new RawTextCursor(this), b = new RawTextCursor(other);\n        for (;;) {\n            a.next();\n            b.next();\n            if (a.lineBreak != b.lineBreak || a.done != b.done || a.value != b.value)\n                return false;\n            if (a.done)\n                return true;\n        }\n    }\n    /**\n    Iterate over the text. When `dir` is `-1`, iteration happens\n    from end to start. This will return lines and the breaks between\n    them as separate strings, and for long lines, might split lines\n    themselves into multiple chunks as well.\n    */\n    iter(dir = 1) { return new RawTextCursor(this, dir); }\n    /**\n    Iterate over a range of the text. When `from` > `to`, the\n    iterator will run in reverse.\n    */\n    iterRange(from, to = this.length) { return new PartialTextCursor(this, from, to); }\n    /**\n    @internal\n    */\n    toString() { return this.sliceString(0); }\n    /**\n    Convert the document to an array of lines (which can be\n    deserialized again via [`Text.of`](https://codemirror.net/6/docs/ref/#text.Text^of)).\n    */\n    toJSON() {\n        let lines = [];\n        this.flatten(lines);\n        return lines;\n    }\n    /**\n    Create a `Text` instance for the given array of lines.\n    */\n    static of(text) {\n        if (text.length == 0)\n            throw new RangeError(\"A document must have at least one line\");\n        if (text.length == 1 && !text[0])\n            return Text.empty;\n        return text.length <= 32 /* Branch */ ? new TextLeaf(text) : TextNode.from(TextLeaf.split(text, []));\n    }\n}\nif (typeof Symbol != \"undefined\")\n    Text.prototype[Symbol.iterator] = function () { return this.iter(); };\n// Leaves store an array of line strings. There are always line breaks\n// between these strings. Leaves are limited in size and have to be\n// contained in TextNode instances for bigger documents.\nclass TextLeaf extends Text {\n    constructor(text, length = textLength(text)) {\n        super();\n        this.text = text;\n        this.length = length;\n    }\n    get lines() { return this.text.length; }\n    get children() { return null; }\n    lineInner(target, isLine, line, offset) {\n        for (let i = 0;; i++) {\n            let string = this.text[i], end = offset + string.length;\n            if ((isLine ? line : end) >= target)\n                return new Line(offset, end, line, string);\n            offset = end + 1;\n            line++;\n        }\n    }\n    decompose(from, to, target, open) {\n        let text = from <= 0 && to >= this.length ? this\n            : new TextLeaf(sliceText(this.text, from, to), Math.min(to, this.length) - Math.max(0, from));\n        if (open & 1 /* From */) {\n            let prev = target.pop();\n            let joined = appendText(text.text, prev.text.slice(), 0, text.length);\n            if (joined.length <= 32 /* Branch */) {\n                target.push(new TextLeaf(joined, prev.length + text.length));\n            }\n            else {\n                let mid = joined.length >> 1;\n                target.push(new TextLeaf(joined.slice(0, mid)), new TextLeaf(joined.slice(mid)));\n            }\n        }\n        else {\n            target.push(text);\n        }\n    }\n    replace(from, to, text) {\n        if (!(text instanceof TextLeaf))\n            return super.replace(from, to, text);\n        let lines = appendText(this.text, appendText(text.text, sliceText(this.text, 0, from)), to);\n        let newLen = this.length + text.length - (to - from);\n        if (lines.length <= 32 /* Branch */)\n            return new TextLeaf(lines, newLen);\n        return TextNode.from(TextLeaf.split(lines, []), newLen);\n    }\n    sliceString(from, to = this.length, lineSep = \"\\n\") {\n        let result = \"\";\n        for (let pos = 0, i = 0; pos <= to && i < this.text.length; i++) {\n            let line = this.text[i], end = pos + line.length;\n            if (pos > from && i)\n                result += lineSep;\n            if (from < end && to > pos)\n                result += line.slice(Math.max(0, from - pos), to - pos);\n            pos = end + 1;\n        }\n        return result;\n    }\n    flatten(target) {\n        for (let line of this.text)\n            target.push(line);\n    }\n    static split(text, target) {\n        let part = [], len = -1;\n        for (let line of text) {\n            part.push(line);\n            len += line.length + 1;\n            if (part.length == 32 /* Branch */) {\n                target.push(new TextLeaf(part, len));\n                part = [];\n                len = -1;\n            }\n        }\n        if (len > -1)\n            target.push(new TextLeaf(part, len));\n        return target;\n    }\n}\n// Nodes provide the tree structure of the `Text` type. They store a\n// number of other nodes or leaves, taking care to balance themselves\n// on changes. There are implied line breaks _between_ the children of\n// a node (but not before the first or after the last child).\nclass TextNode extends Text {\n    constructor(children, length) {\n        super();\n        this.children = children;\n        this.length = length;\n        this.lines = 0;\n        for (let child of children)\n            this.lines += child.lines;\n    }\n    lineInner(target, isLine, line, offset) {\n        for (let i = 0;; i++) {\n            let child = this.children[i], end = offset + child.length, endLine = line + child.lines - 1;\n            if ((isLine ? endLine : end) >= target)\n                return child.lineInner(target, isLine, line, offset);\n            offset = end + 1;\n            line = endLine + 1;\n        }\n    }\n    decompose(from, to, target, open) {\n        for (let i = 0, pos = 0; pos <= to && i < this.children.length; i++) {\n            let child = this.children[i], end = pos + child.length;\n            if (from <= end && to >= pos) {\n                let childOpen = open & ((pos <= from ? 1 /* From */ : 0) | (end >= to ? 2 /* To */ : 0));\n                if (pos >= from && end <= to && !childOpen)\n                    target.push(child);\n                else\n                    child.decompose(from - pos, to - pos, target, childOpen);\n            }\n            pos = end + 1;\n        }\n    }\n    replace(from, to, text) {\n        if (text.lines < this.lines)\n            for (let i = 0, pos = 0; i < this.children.length; i++) {\n                let child = this.children[i], end = pos + child.length;\n                // Fast path: if the change only affects one child and the\n                // child's size remains in the acceptable range, only update\n                // that child\n                if (from >= pos && to <= end) {\n                    let updated = child.replace(from - pos, to - pos, text);\n                    let totalLines = this.lines - child.lines + updated.lines;\n                    if (updated.lines < (totalLines >> (5 /* BranchShift */ - 1)) &&\n                        updated.lines > (totalLines >> (5 /* BranchShift */ + 1))) {\n                        let copy = this.children.slice();\n                        copy[i] = updated;\n                        return new TextNode(copy, this.length - (to - from) + text.length);\n                    }\n                    return super.replace(pos, end, updated);\n                }\n                pos = end + 1;\n            }\n        return super.replace(from, to, text);\n    }\n    sliceString(from, to = this.length, lineSep = \"\\n\") {\n        let result = \"\";\n        for (let i = 0, pos = 0; i < this.children.length && pos <= to; i++) {\n            let child = this.children[i], end = pos + child.length;\n            if (pos > from && i)\n                result += lineSep;\n            if (from < end && to > pos)\n                result += child.sliceString(from - pos, to - pos, lineSep);\n            pos = end + 1;\n        }\n        return result;\n    }\n    flatten(target) {\n        for (let child of this.children)\n            child.flatten(target);\n    }\n    static from(children, length = children.reduce((l, ch) => l + ch.length + 1, -1)) {\n        let lines = 0;\n        for (let ch of children)\n            lines += ch.lines;\n        if (lines < 32 /* Branch */) {\n            let flat = [];\n            for (let ch of children)\n                ch.flatten(flat);\n            return new TextLeaf(flat, length);\n        }\n        let chunk = Math.max(32 /* Branch */, lines >> 5 /* BranchShift */), maxChunk = chunk << 1, minChunk = chunk >> 1;\n        let chunked = [], currentLines = 0, currentLen = -1, currentChunk = [];\n        function add(child) {\n            let last;\n            if (child.lines > maxChunk && child instanceof TextNode) {\n                for (let node of child.children)\n                    add(node);\n            }\n            else if (child.lines > minChunk && (currentLines > minChunk || !currentLines)) {\n                flush();\n                chunked.push(child);\n            }\n            else if (child instanceof TextLeaf && currentLines &&\n                (last = currentChunk[currentChunk.length - 1]) instanceof TextLeaf &&\n                child.lines + last.lines <= 32 /* Branch */) {\n                currentLines += child.lines;\n                currentLen += child.length + 1;\n                currentChunk[currentChunk.length - 1] = new TextLeaf(last.text.concat(child.text), last.length + 1 + child.length);\n            }\n            else {\n                if (currentLines + child.lines > chunk)\n                    flush();\n                currentLines += child.lines;\n                currentLen += child.length + 1;\n                currentChunk.push(child);\n            }\n        }\n        function flush() {\n            if (currentLines == 0)\n                return;\n            chunked.push(currentChunk.length == 1 ? currentChunk[0] : TextNode.from(currentChunk, currentLen));\n            currentLen = -1;\n            currentLines = currentChunk.length = 0;\n        }\n        for (let child of children)\n            add(child);\n        flush();\n        return chunked.length == 1 ? chunked[0] : new TextNode(chunked, length);\n    }\n}\nText.empty = /*@__PURE__*/new TextLeaf([\"\"], 0);\nfunction textLength(text) {\n    let length = -1;\n    for (let line of text)\n        length += line.length + 1;\n    return length;\n}\nfunction appendText(text, target, from = 0, to = 1e9) {\n    for (let pos = 0, i = 0, first = true; i < text.length && pos <= to; i++) {\n        let line = text[i], end = pos + line.length;\n        if (end >= from) {\n            if (end > to)\n                line = line.slice(0, to - pos);\n            if (pos < from)\n                line = line.slice(from - pos);\n            if (first) {\n                target[target.length - 1] += line;\n                first = false;\n            }\n            else\n                target.push(line);\n        }\n        pos = end + 1;\n    }\n    return target;\n}\nfunction sliceText(text, from, to) {\n    return appendText(text, [\"\"], from, to);\n}\nclass RawTextCursor {\n    constructor(text, dir = 1) {\n        this.dir = dir;\n        this.done = false;\n        this.lineBreak = false;\n        this.value = \"\";\n        this.nodes = [text];\n        this.offsets = [dir > 0 ? 1 : (text instanceof TextLeaf ? text.text.length : text.children.length) << 1];\n    }\n    nextInner(skip, dir) {\n        this.done = this.lineBreak = false;\n        for (;;) {\n            let last = this.nodes.length - 1;\n            let top = this.nodes[last], offsetValue = this.offsets[last], offset = offsetValue >> 1;\n            let size = top instanceof TextLeaf ? top.text.length : top.children.length;\n            if (offset == (dir > 0 ? size : 0)) {\n                if (last == 0) {\n                    this.done = true;\n                    this.value = \"\";\n                    return this;\n                }\n                if (dir > 0)\n                    this.offsets[last - 1]++;\n                this.nodes.pop();\n                this.offsets.pop();\n            }\n            else if ((offsetValue & 1) == (dir > 0 ? 0 : 1)) {\n                this.offsets[last] += dir;\n                if (skip == 0) {\n                    this.lineBreak = true;\n                    this.value = \"\\n\";\n                    return this;\n                }\n                skip--;\n            }\n            else if (top instanceof TextLeaf) {\n                // Move to the next string\n                let next = top.text[offset + (dir < 0 ? -1 : 0)];\n                this.offsets[last] += dir;\n                if (next.length > Math.max(0, skip)) {\n                    this.value = skip == 0 ? next : dir > 0 ? next.slice(skip) : next.slice(0, next.length - skip);\n                    return this;\n                }\n                skip -= next.length;\n            }\n            else {\n                let next = top.children[offset + (dir < 0 ? -1 : 0)];\n                if (skip > next.length) {\n                    skip -= next.length;\n                    this.offsets[last] += dir;\n                }\n                else {\n                    if (dir < 0)\n                        this.offsets[last]--;\n                    this.nodes.push(next);\n                    this.offsets.push(dir > 0 ? 1 : (next instanceof TextLeaf ? next.text.length : next.children.length) << 1);\n                }\n            }\n        }\n    }\n    next(skip = 0) {\n        if (skip < 0) {\n            this.nextInner(-skip, (-this.dir));\n            skip = this.value.length;\n        }\n        return this.nextInner(skip, this.dir);\n    }\n}\nclass PartialTextCursor {\n    constructor(text, start, end) {\n        this.value = \"\";\n        this.done = false;\n        this.cursor = new RawTextCursor(text, start > end ? -1 : 1);\n        this.pos = start > end ? text.length : 0;\n        this.from = Math.min(start, end);\n        this.to = Math.max(start, end);\n    }\n    nextInner(skip, dir) {\n        if (dir < 0 ? this.pos <= this.from : this.pos >= this.to) {\n            this.value = \"\";\n            this.done = true;\n            return this;\n        }\n        this.done = false;\n        skip += Math.max(0, dir < 0 ? this.pos - this.to : this.from - this.pos);\n        let limit = dir < 0 ? this.pos - this.from : this.to - this.pos;\n        if (skip > limit)\n            skip = limit;\n        limit -= skip;\n        let { value } = this.cursor.next(skip);\n        this.pos += (value.length + skip) * dir;\n        this.value = value.length <= limit ? value : dir < 0 ? value.slice(value.length - limit) : value.slice(0, limit);\n        return this;\n    }\n    next(skip = 0) {\n        if (skip < 0)\n            skip = Math.max(skip, this.from - this.pos);\n        else if (skip > 0)\n            skip = Math.min(skip, this.to - this.pos);\n        return this.nextInner(skip, this.cursor.dir);\n    }\n    get lineBreak() { return this.cursor.lineBreak && this.value != \"\"; }\n}\n/**\nThis type describes a line in the document. It is created\non-demand when lines are [queried](https://codemirror.net/6/docs/ref/#text.Text.lineAt).\n*/\nclass Line {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The position of the start of the line.\n    */\n    from, \n    /**\n    The position at the end of the line (_before_ the line break,\n    or at the end of document for the last line).\n    */\n    to, \n    /**\n    This line's line number (1-based).\n    */\n    number, \n    /**\n    The line's content.\n    */\n    text) {\n        this.from = from;\n        this.to = to;\n        this.number = number;\n        this.text = text;\n    }\n    /**\n    The length of the line (not including any line break after it).\n    */\n    get length() { return this.to - this.from; }\n}\n\nexport { Line, Text, codePointAt, codePointSize, countColumn, findClusterBreak, findColumn, fromCodePoint };\n"],"names":[],"sourceRoot":""}