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{ Annotation, Facet, combineConfig, StateField, Transaction, ChangeSet, ChangeDesc, EditorSelection, StateEffect } from '@codemirror/state';\nimport { EditorView } from '@codemirror/view';\n\nconst fromHistory = Annotation.define();\n/**\nTransaction annotation that will prevent that transaction from\nbeing combined with other transactions in the undo history. Given\n`\"before\"`, it'll prevent merging with previous transactions. With\n`\"after\"`, subsequent transactions won't be combined with this\none. With `\"full\"`, the transaction is isolated on both sides.\n*/\nconst isolateHistory = Annotation.define();\n/**\nThis facet provides a way to register functions that, given a\ntransaction, provide a set of effects that the history should\nstore when inverting the transaction. This can be used to\nintegrate some kinds of effects in the history, so that they can\nbe undone (and redone again).\n*/\nconst invertedEffects = Facet.define();\nconst historyConfig = Facet.define({\n    combine(configs) {\n        return combineConfig(configs, {\n            minDepth: 100,\n            newGroupDelay: 500\n        }, { minDepth: Math.max, newGroupDelay: Math.min });\n    }\n});\nconst historyField_ = StateField.define({\n    create() {\n        return HistoryState.empty;\n    },\n    update(state, tr) {\n        let config = tr.state.facet(historyConfig);\n        let fromHist = tr.annotation(fromHistory);\n        if (fromHist) {\n            let item = HistEvent.fromTransaction(tr), from = fromHist.side;\n            let other = from == 0 /* Done */ ? state.undone : state.done;\n            if (item)\n                other = updateBranch(other, other.length, config.minDepth, item);\n            else\n                other = addSelection(other, tr.startState.selection);\n            return new HistoryState(from == 0 /* Done */ ? fromHist.rest : other, from == 0 /* Done */ ? other : fromHist.rest);\n        }\n        let isolate = tr.annotation(isolateHistory);\n        if (isolate == \"full\" || isolate == \"before\")\n            state = state.isolate();\n        if (tr.annotation(Transaction.addToHistory) === false)\n            return !tr.changes.empty ? state.addMapping(tr.changes.desc) : state;\n        let event = HistEvent.fromTransaction(tr);\n        let time = tr.annotation(Transaction.time), userEvent = tr.annotation(Transaction.userEvent);\n        if (event)\n            state = state.addChanges(event, time, userEvent, config.newGroupDelay, config.minDepth);\n        else if (tr.selection)\n            state = state.addSelection(tr.startState.selection, time, userEvent, config.newGroupDelay);\n        if (isolate == \"full\" || isolate == \"after\")\n            state = state.isolate();\n        return state;\n    },\n    toJSON(value) {\n        return { done: value.done.map(e => e.toJSON()), undone: value.undone.map(e => e.toJSON()) };\n    },\n    fromJSON(json) {\n        return new HistoryState(json.done.map(HistEvent.fromJSON), json.undone.map(HistEvent.fromJSON));\n    }\n});\n/**\nCreate a history extension with the given configuration.\n*/\nfunction history(config = {}) {\n    return [\n        historyField_,\n        historyConfig.of(config),\n        EditorView.domEventHandlers({\n            beforeinput(e, view) {\n                if (e.inputType == \"historyUndo\")\n                    return undo(view);\n                if (e.inputType == \"historyRedo\")\n                    return redo(view);\n                return false;\n            }\n        })\n    ];\n}\n/**\nThe state field used to store the history data. Should probably\nonly be used when you want to\n[serialize](https://codemirror.net/6/docs/ref/#state.EditorState.toJSON) or\n[deserialize](https://codemirror.net/6/docs/ref/#state.EditorState^fromJSON) state objects in a way\nthat preserves history.\n*/\nconst historyField = historyField_;\nfunction cmd(side, selection) {\n    return function ({ state, dispatch }) {\n        let historyState = state.field(historyField_, false);\n        if (!historyState)\n            return false;\n        let tr = historyState.pop(side, state, selection);\n        if (!tr)\n            return false;\n        dispatch(tr);\n        return true;\n    };\n}\n/**\nUndo a single group of history events. Returns false if no group\nwas available.\n*/\nconst undo = cmd(0 /* Done */, false);\n/**\nRedo a group of history events. Returns false if no group was\navailable.\n*/\nconst redo = cmd(1 /* Undone */, false);\n/**\nUndo a selection change.\n*/\nconst undoSelection = cmd(0 /* Done */, true);\n/**\nRedo a selection change.\n*/\nconst redoSelection = cmd(1 /* Undone */, true);\nfunction depth(side) {\n    return function (state) {\n        let histState = state.field(historyField_, false);\n        if (!histState)\n            return 0;\n        let branch = side == 0 /* Done */ ? histState.done : histState.undone;\n        return branch.length - (branch.length && !branch[0].changes ? 1 : 0);\n    };\n}\n/**\nThe amount of undoable change events available in a given state.\n*/\nconst undoDepth = depth(0 /* Done */);\n/**\nThe amount of redoable change events available in a given state.\n*/\nconst redoDepth = depth(1 /* Undone */);\n// History events store groups of changes or effects that need to be\n// undone/redone together.\nclass HistEvent {\n    constructor(\n    // The changes in this event. Normal events hold at least one\n    // change or effect. But it may be necessary to store selection\n    // events before the first change, in which case a special type of\n    // instance is created which doesn't hold any changes, with\n    // changes == startSelection == undefined\n    changes, \n    // The effects associated with this event\n    effects, mapped, \n    // The selection before this event\n    startSelection, \n    // Stores selection changes after this event, to be used for\n    // selection undo/redo.\n    selectionsAfter) {\n        this.changes = changes;\n        this.effects = effects;\n        this.mapped = mapped;\n        this.startSelection = startSelection;\n        this.selectionsAfter = selectionsAfter;\n    }\n    setSelAfter(after) {\n        return new HistEvent(this.changes, this.effects, this.mapped, this.startSelection, after);\n    }\n    toJSON() {\n        var _a, _b, _c;\n        return {\n            changes: (_a = this.changes) === null || _a === void 0 ? void 0 : _a.toJSON(),\n            mapped: (_b = this.mapped) === null || _b === void 0 ? void 0 : _b.toJSON(),\n            startSelection: (_c = this.startSelection) === null || _c === void 0 ? void 0 : _c.toJSON(),\n            selectionsAfter: this.selectionsAfter.map(s => s.toJSON())\n        };\n    }\n    static fromJSON(json) {\n        return new HistEvent(json.changes && ChangeSet.fromJSON(json.changes), [], json.mapped && ChangeDesc.fromJSON(json.mapped), json.startSelection && EditorSelection.fromJSON(json.startSelection), json.selectionsAfter.map(EditorSelection.fromJSON));\n    }\n    // This does not check `addToHistory` and such, it assumes the\n    // transaction needs to be converted to an item. Returns null when\n    // there are no changes or effects in the transaction.\n    static fromTransaction(tr) {\n        let effects = none;\n        for (let invert of tr.startState.facet(invertedEffects)) {\n            let result = invert(tr);\n            if (result.length)\n                effects = effects.concat(result);\n        }\n        if (!effects.length && tr.changes.empty)\n            return null;\n        return new HistEvent(tr.changes.invert(tr.startState.doc), effects, undefined, tr.startState.selection, none);\n    }\n    static selection(selections) {\n        return new HistEvent(undefined, none, undefined, undefined, selections);\n    }\n}\nfunction updateBranch(branch, to, maxLen, newEvent) {\n    let start = to + 1 > maxLen + 20 ? to - maxLen - 1 : 0;\n    let newBranch = branch.slice(start, to);\n    newBranch.push(newEvent);\n    return newBranch;\n}\nfunction isAdjacent(a, b) {\n    let ranges = [], isAdjacent = false;\n    a.iterChangedRanges((f, t) => ranges.push(f, t));\n    b.iterChangedRanges((_f, _t, f, t) => {\n        for (let i = 0; i < ranges.length;) {\n            let from = ranges[i++], to = ranges[i++];\n            if (t >= from && f <= to)\n                isAdjacent = true;\n        }\n    });\n    return isAdjacent;\n}\nfunction eqSelectionShape(a, b) {\n    return a.ranges.length == b.ranges.length &&\n        a.ranges.filter((r, i) => r.empty != b.ranges[i].empty).length === 0;\n}\nfunction conc(a, b) {\n    return !a.length ? b : !b.length ? a : a.concat(b);\n}\nconst none = [];\nconst MaxSelectionsPerEvent = 200;\nfunction addSelection(branch, selection) {\n    if (!branch.length) {\n        return [HistEvent.selection([selection])];\n    }\n    else {\n        let lastEvent = branch[branch.length - 1];\n        let sels = lastEvent.selectionsAfter.slice(Math.max(0, lastEvent.selectionsAfter.length - MaxSelectionsPerEvent));\n        if (sels.length && sels[sels.length - 1].eq(selection))\n            return branch;\n        sels.push(selection);\n        return updateBranch(branch, branch.length - 1, 1e9, lastEvent.setSelAfter(sels));\n    }\n}\n// Assumes the top item has one or more selectionAfter values\nfunction popSelection(branch) {\n    let last = branch[branch.length - 1];\n    let newBranch = branch.slice();\n    newBranch[branch.length - 1] = last.setSelAfter(last.selectionsAfter.slice(0, last.selectionsAfter.length - 1));\n    return newBranch;\n}\n// Add a mapping to the top event in the given branch. If this maps\n// away all the changes and effects in that item, drop it and\n// propagate the mapping to the next item.\nfunction addMappingToBranch(branch, mapping) {\n    if (!branch.length)\n        return branch;\n    let length = branch.length, selections = none;\n    while (length) {\n        let event = mapEvent(branch[length - 1], mapping, selections);\n        if (event.changes && !event.changes.empty || event.effects.length) { // Event survived mapping\n            let result = branch.slice(0, length);\n            result[length - 1] = event;\n            return result;\n        }\n        else { // Drop this event, since there's no changes or effects left\n            mapping = event.mapped;\n            length--;\n            selections = event.selectionsAfter;\n        }\n    }\n    return selections.length ? [HistEvent.selection(selections)] : none;\n}\nfunction mapEvent(event, mapping, extraSelections) {\n    let selections = conc(event.selectionsAfter.length ? event.selectionsAfter.map(s => s.map(mapping)) : none, extraSelections);\n    // Change-less events don't store mappings (they are always the last event in a branch)\n    if (!event.changes)\n        return HistEvent.selection(selections);\n    let mappedChanges = event.changes.map(mapping), before = mapping.mapDesc(event.changes, true);\n    let fullMapping = event.mapped ? event.mapped.composeDesc(before) : before;\n    return new HistEvent(mappedChanges, StateEffect.mapEffects(event.effects, mapping), fullMapping, event.startSelection.map(before), selections);\n}\nclass HistoryState {\n    constructor(done, undone, prevTime = 0, prevUserEvent = undefined) {\n        this.done = done;\n        this.undone = undone;\n        this.prevTime = prevTime;\n        this.prevUserEvent = prevUserEvent;\n    }\n    isolate() {\n        return this.prevTime ? new HistoryState(this.done, this.undone) : this;\n    }\n    addChanges(event, time, userEvent, newGroupDelay, maxLen) {\n        let done = this.done, lastEvent = done[done.length - 1];\n        if (lastEvent && lastEvent.changes &&\n            time - this.prevTime < newGroupDelay &&\n            !lastEvent.selectionsAfter.length &&\n            !lastEvent.changes.empty && event.changes &&\n            isAdjacent(lastEvent.changes, event.changes)) {\n            done = updateBranch(done, done.length - 1, maxLen, new HistEvent(event.changes.compose(lastEvent.changes), conc(event.effects, lastEvent.effects), lastEvent.mapped, lastEvent.startSelection, none));\n        }\n        else {\n            done = updateBranch(done, done.length, maxLen, event);\n        }\n        return new HistoryState(done, none, time, userEvent);\n    }\n    addSelection(selection, time, userEvent, newGroupDelay) {\n        let last = this.done.length ? this.done[this.done.length - 1].selectionsAfter : none;\n        if (last.length > 0 &&\n            time - this.prevTime < newGroupDelay &&\n            userEvent == \"keyboardselection\" && this.prevUserEvent == userEvent &&\n            eqSelectionShape(last[last.length - 1], selection))\n            return this;\n        return new HistoryState(addSelection(this.done, selection), this.undone, time, userEvent);\n    }\n    addMapping(mapping) {\n        return new HistoryState(addMappingToBranch(this.done, mapping), addMappingToBranch(this.undone, mapping), this.prevTime, this.prevUserEvent);\n    }\n    pop(side, state, selection) {\n        let branch = side == 0 /* Done */ ? this.done : this.undone;\n        if (branch.length == 0)\n            return null;\n        let event = branch[branch.length - 1];\n        if (selection && event.selectionsAfter.length) {\n            return state.update({\n                selection: event.selectionsAfter[event.selectionsAfter.length - 1],\n                annotations: fromHistory.of({ side, rest: popSelection(branch) })\n            });\n        }\n        else if (!event.changes) {\n            return null;\n        }\n        else {\n            let rest = branch.length == 1 ? none : branch.slice(0, branch.length - 1);\n            if (event.mapped)\n                rest = addMappingToBranch(rest, event.mapped);\n            return state.update({\n                changes: event.changes,\n                selection: event.startSelection,\n                effects: event.effects,\n                annotations: fromHistory.of({ side, rest }),\n                filter: false\n            });\n        }\n    }\n}\nHistoryState.empty = new HistoryState(none, none);\n/**\nDefault key bindings for the undo history.\n\n- Mod-z: [`undo`](https://codemirror.net/6/docs/ref/#history.undo).\n- Mod-y (Mod-Shift-z on macOS): [`redo`](https://codemirror.net/6/docs/ref/#history.redo).\n- Mod-u: [`undoSelection`](https://codemirror.net/6/docs/ref/#history.undoSelection).\n- Alt-u (Mod-Shift-u on macOS): [`redoSelection`](https://codemirror.net/6/docs/ref/#history.redoSelection).\n*/\nconst historyKeymap = [\n    { key: \"Mod-z\", run: undo, preventDefault: true },\n    { key: \"Mod-y\", mac: \"Mod-Shift-z\", run: redo, preventDefault: true },\n    { key: \"Mod-u\", run: undoSelection, preventDefault: true },\n    { key: \"Alt-u\", mac: \"Mod-Shift-u\", run: redoSelection, preventDefault: true }\n];\n\nexport { history, historyField, historyKeymap, invertedEffects, isolateHistory, redo, redoDepth, redoSelection, undo, undoDepth, undoSelection };\n","import { parser } from 'lezer-css';\nimport { syntaxTree, LezerLanguage, indentNodeProp, continuedIndent, foldNodeProp, foldInside, LanguageSupport } from '@codemirror/language';\nimport { styleTags, tags as tags$1 } from '@codemirror/highlight';\n\nlet _properties = null;\nfunction properties() {\n    if (!_properties && typeof document == \"object\" && document.body) {\n        let names = [];\n        for (let prop in document.body.style) {\n            if (!/[A-Z]|^-|^(item|length)$/.test(prop))\n                names.push(prop);\n        }\n        _properties = names.sort().map(name => ({ type: \"property\", label: name }));\n    }\n    return _properties || [];\n}\nconst pseudoClasses = [\n    \"active\", \"after\", \"before\", \"checked\", \"default\",\n    \"disabled\", \"empty\", \"enabled\", \"first-child\", \"first-letter\",\n    \"first-line\", \"first-of-type\", \"focus\", \"hover\", \"in-range\",\n    \"indeterminate\", \"invalid\", \"lang\", \"last-child\", \"last-of-type\",\n    \"link\", \"not\", \"nth-child\", \"nth-last-child\", \"nth-last-of-type\",\n    \"nth-of-type\", \"only-of-type\", \"only-child\", \"optional\", \"out-of-range\",\n    \"placeholder\", \"read-only\", \"read-write\", \"required\", \"root\",\n    \"selection\", \"target\", \"valid\", \"visited\"\n].map(name => ({ type: \"class\", label: name }));\nconst values = [\n    \"above\", \"absolute\", \"activeborder\", \"additive\", \"activecaption\", \"after-white-space\",\n    \"ahead\", \"alias\", \"all\", \"all-scroll\", \"alphabetic\", \"alternate\", \"always\",\n    \"antialiased\", \"appworkspace\", \"asterisks\", \"attr\", \"auto\", \"auto-flow\", \"avoid\", \"avoid-column\",\n    \"avoid-page\", \"avoid-region\", \"axis-pan\", \"background\", \"backwards\", \"baseline\", \"below\",\n    \"bidi-override\", \"blink\", \"block\", \"block-axis\", \"bold\", \"bolder\", \"border\", \"border-box\",\n    \"both\", \"bottom\", \"break\", \"break-all\", \"break-word\", \"bullets\", \"button\", \"button-bevel\",\n    \"buttonface\", \"buttonhighlight\", \"buttonshadow\", \"buttontext\", \"calc\", \"capitalize\",\n    \"caps-lock-indicator\", \"caption\", \"captiontext\", \"caret\", \"cell\", \"center\", \"checkbox\", \"circle\",\n    \"cjk-decimal\", \"clear\", \"clip\", \"close-quote\", \"col-resize\", \"collapse\", \"color\", \"color-burn\",\n    \"color-dodge\", \"column\", \"column-reverse\", \"compact\", \"condensed\", \"contain\", \"content\",\n    \"contents\", \"content-box\", \"context-menu\", \"continuous\", \"copy\", \"counter\", \"counters\", \"cover\",\n    \"crop\", \"cross\", \"crosshair\", \"currentcolor\", \"cursive\", \"cyclic\", \"darken\", \"dashed\", \"decimal\",\n    \"decimal-leading-zero\", \"default\", \"default-button\", \"dense\", \"destination-atop\", \"destination-in\",\n    \"destination-out\", \"destination-over\", \"difference\", \"disc\", \"discard\", \"disclosure-closed\",\n    \"disclosure-open\", \"document\", \"dot-dash\", \"dot-dot-dash\", \"dotted\", \"double\", \"down\", \"e-resize\",\n    \"ease\", \"ease-in\", \"ease-in-out\", \"ease-out\", \"element\", \"ellipse\", \"ellipsis\", \"embed\", \"end\",\n    \"ethiopic-abegede-gez\", \"ethiopic-halehame-aa-er\", \"ethiopic-halehame-gez\", \"ew-resize\", \"exclusion\",\n    \"expanded\", \"extends\", \"extra-condensed\", \"extra-expanded\", \"fantasy\", \"fast\", \"fill\", \"fill-box\",\n    \"fixed\", \"flat\", \"flex\", \"flex-end\", \"flex-start\", \"footnotes\", \"forwards\", \"from\",\n    \"geometricPrecision\", \"graytext\", \"grid\", \"groove\", \"hand\", \"hard-light\", \"help\", \"hidden\", \"hide\",\n    \"higher\", \"highlight\", \"highlighttext\", \"horizontal\", \"hsl\", \"hsla\", \"hue\", \"icon\", \"ignore\",\n    \"inactiveborder\", \"inactivecaption\", \"inactivecaptiontext\", \"infinite\", \"infobackground\", \"infotext\",\n    \"inherit\", \"initial\", \"inline\", \"inline-axis\", \"inline-block\", \"inline-flex\", \"inline-grid\",\n    \"inline-table\", \"inset\", \"inside\", \"intrinsic\", \"invert\", \"italic\", \"justify\", \"keep-all\",\n    \"landscape\", \"large\", \"larger\", \"left\", \"level\", \"lighter\", \"lighten\", \"line-through\", \"linear\",\n    \"linear-gradient\", \"lines\", \"list-item\", \"listbox\", \"listitem\", \"local\", \"logical\", \"loud\", \"lower\",\n    \"lower-hexadecimal\", \"lower-latin\", \"lower-norwegian\", \"lowercase\", \"ltr\", \"luminosity\", \"manipulation\",\n    \"match\", \"matrix\", \"matrix3d\", \"medium\", \"menu\", \"menutext\", \"message-box\", \"middle\", \"min-intrinsic\",\n    \"mix\", \"monospace\", \"move\", \"multiple\", \"multiple_mask_images\", \"multiply\", \"n-resize\", \"narrower\",\n    \"ne-resize\", \"nesw-resize\", \"no-close-quote\", \"no-drop\", \"no-open-quote\", \"no-repeat\", \"none\",\n    \"normal\", \"not-allowed\", \"nowrap\", \"ns-resize\", \"numbers\", \"numeric\", \"nw-resize\", \"nwse-resize\",\n    \"oblique\", \"opacity\", \"open-quote\", \"optimizeLegibility\", \"optimizeSpeed\", \"outset\", \"outside\",\n    \"outside-shape\", \"overlay\", \"overline\", \"padding\", \"padding-box\", \"painted\", \"page\", \"paused\",\n    \"perspective\", \"pinch-zoom\", \"plus-darker\", \"plus-lighter\", \"pointer\", \"polygon\", \"portrait\",\n    \"pre\", \"pre-line\", \"pre-wrap\", \"preserve-3d\", \"progress\", \"push-button\", \"radial-gradient\", \"radio\",\n    \"read-only\", \"read-write\", \"read-write-plaintext-only\", \"rectangle\", \"region\", \"relative\", \"repeat\",\n    \"repeating-linear-gradient\", \"repeating-radial-gradient\", \"repeat-x\", \"repeat-y\", \"reset\", \"reverse\",\n    \"rgb\", \"rgba\", \"ridge\", \"right\", \"rotate\", \"rotate3d\", \"rotateX\", \"rotateY\", \"rotateZ\", \"round\",\n    \"row\", \"row-resize\", \"row-reverse\", \"rtl\", \"run-in\", \"running\", \"s-resize\", \"sans-serif\", \"saturation\",\n    \"scale\", \"scale3d\", \"scaleX\", \"scaleY\", \"scaleZ\", \"screen\", \"scroll\", \"scrollbar\", \"scroll-position\",\n    \"se-resize\", \"self-start\", \"self-end\", \"semi-condensed\", \"semi-expanded\", \"separate\", \"serif\", \"show\",\n    \"single\", \"skew\", \"skewX\", \"skewY\", \"skip-white-space\", \"slide\", \"slider-horizontal\",\n    \"slider-vertical\", \"sliderthumb-horizontal\", \"sliderthumb-vertical\", \"slow\", \"small\", \"small-caps\",\n    \"small-caption\", \"smaller\", \"soft-light\", \"solid\", \"source-atop\", \"source-in\", \"source-out\",\n    \"source-over\", \"space\", \"space-around\", \"space-between\", \"space-evenly\", \"spell-out\", \"square\", \"start\",\n    \"static\", \"status-bar\", \"stretch\", \"stroke\", \"stroke-box\", \"sub\", \"subpixel-antialiased\", \"svg_masks\",\n    \"super\", \"sw-resize\", \"symbolic\", \"symbols\", \"system-ui\", \"table\", \"table-caption\", \"table-cell\",\n    \"table-column\", \"table-column-group\", \"table-footer-group\", \"table-header-group\", \"table-row\",\n    \"table-row-group\", \"text\", \"text-bottom\", \"text-top\", \"textarea\", \"textfield\", \"thick\", \"thin\",\n    \"threeddarkshadow\", \"threedface\", \"threedhighlight\", \"threedlightshadow\", \"threedshadow\", \"to\", \"top\",\n    \"transform\", \"translate\", \"translate3d\", \"translateX\", \"translateY\", \"translateZ\", \"transparent\",\n    \"ultra-condensed\", \"ultra-expanded\", \"underline\", \"unidirectional-pan\", \"unset\", \"up\", \"upper-latin\",\n    \"uppercase\", \"url\", \"var\", \"vertical\", \"vertical-text\", \"view-box\", \"visible\", \"visibleFill\",\n    \"visiblePainted\", \"visibleStroke\", \"visual\", \"w-resize\", \"wait\", \"wave\", \"wider\", \"window\", \"windowframe\",\n    \"windowtext\", \"words\", \"wrap\", \"wrap-reverse\", \"x-large\", \"x-small\", \"xor\", \"xx-large\", \"xx-small\"\n].map(name => ({ type: \"keyword\", label: name })).concat([\n    \"aliceblue\", \"antiquewhite\", \"aqua\", \"aquamarine\", \"azure\", \"beige\",\n    \"bisque\", \"black\", \"blanchedalmond\", \"blue\", \"blueviolet\", \"brown\",\n    \"burlywood\", \"cadetblue\", \"chartreuse\", \"chocolate\", \"coral\", \"cornflowerblue\",\n    \"cornsilk\", \"crimson\", \"cyan\", \"darkblue\", \"darkcyan\", \"darkgoldenrod\",\n    \"darkgray\", \"darkgreen\", \"darkkhaki\", \"darkmagenta\", \"darkolivegreen\",\n    \"darkorange\", \"darkorchid\", \"darkred\", \"darksalmon\", \"darkseagreen\",\n    \"darkslateblue\", \"darkslategray\", \"darkturquoise\", \"darkviolet\",\n    \"deeppink\", \"deepskyblue\", \"dimgray\", \"dodgerblue\", \"firebrick\",\n    \"floralwhite\", \"forestgreen\", \"fuchsia\", \"gainsboro\", \"ghostwhite\",\n    \"gold\", \"goldenrod\", \"gray\", \"grey\", \"green\", \"greenyellow\", \"honeydew\",\n    \"hotpink\", \"indianred\", \"indigo\", \"ivory\", \"khaki\", \"lavender\",\n    \"lavenderblush\", \"lawngreen\", \"lemonchiffon\", \"lightblue\", \"lightcoral\",\n    \"lightcyan\", \"lightgoldenrodyellow\", \"lightgray\", \"lightgreen\", \"lightpink\",\n    \"lightsalmon\", \"lightseagreen\", \"lightskyblue\", \"lightslategray\",\n    \"lightsteelblue\", \"lightyellow\", \"lime\", \"limegreen\", \"linen\", \"magenta\",\n    \"maroon\", \"mediumaquamarine\", \"mediumblue\", \"mediumorchid\", \"mediumpurple\",\n    \"mediumseagreen\", \"mediumslateblue\", \"mediumspringgreen\", \"mediumturquoise\",\n    \"mediumvioletred\", \"midnightblue\", \"mintcream\", \"mistyrose\", \"moccasin\",\n    \"navajowhite\", \"navy\", \"oldlace\", \"olive\", \"olivedrab\", \"orange\", \"orangered\",\n    \"orchid\", \"palegoldenrod\", \"palegreen\", \"paleturquoise\", \"palevioletred\",\n    \"papayawhip\", \"peachpuff\", \"peru\", \"pink\", \"plum\", \"powderblue\",\n    \"purple\", \"rebeccapurple\", \"red\", \"rosybrown\", \"royalblue\", \"saddlebrown\",\n    \"salmon\", \"sandybrown\", \"seagreen\", \"seashell\", \"sienna\", \"silver\", \"skyblue\",\n    \"slateblue\", \"slategray\", \"snow\", \"springgreen\", \"steelblue\", \"tan\",\n    \"teal\", \"thistle\", \"tomato\", \"turquoise\", \"violet\", \"wheat\", \"white\",\n    \"whitesmoke\", \"yellow\", \"yellowgreen\"\n].map(name => ({ type: \"constant\", label: name })));\nconst tags = [\n    \"a\", \"abbr\", \"address\", \"article\", \"aside\", \"b\", \"bdi\", \"bdo\", \"blockquote\", \"body\",\n    \"br\", \"button\", \"canvas\", \"caption\", \"cite\", \"code\", \"col\", \"colgroup\", \"dd\", \"del\",\n    \"details\", \"dfn\", \"dialog\", \"div\", \"dl\", \"dt\", \"em\", \"figcaption\", \"figure\", \"footer\",\n    \"form\", \"header\", \"hgroup\", \"h1\", \"h2\", \"h3\", \"h4\", \"h5\", \"h6\", \"hr\", \"html\", \"i\", \"iframe\",\n    \"img\", \"input\", \"ins\", \"kbd\", \"label\", \"legend\", \"li\", \"main\", \"meter\", \"nav\", \"ol\", \"output\",\n    \"p\", \"pre\", \"ruby\", \"section\", \"select\", \"small\", \"source\", \"span\", \"strong\", \"sub\", \"summary\",\n    \"sup\", \"table\", \"tbody\", \"td\", \"template\", \"textarea\", \"tfoot\", \"th\", \"thead\", \"tr\", \"u\", \"ul\"\n].map(name => ({ type: \"type\", label: name }));\nconst span = /^[\\w-]*/;\nconst completeCSS = context => {\n    let { state, pos } = context, node = syntaxTree(state).resolve(pos, -1);\n    if (node.name == \"PropertyName\")\n        return { from: node.from, options: properties(), span };\n    if (node.name == \"ValueName\")\n        return { from: node.from, options: values, span };\n    if (node.name == \"PseudoClassName\")\n        return { from: node.from, options: pseudoClasses, span };\n    if (node.name == \"TagName\") {\n        for (let { parent } = node; parent; parent = parent.parent)\n            if (parent.name == \"Block\")\n                return { from: node.from, options: properties(), span };\n        return { from: node.from, options: tags, span };\n    }\n    if (!context.explicit)\n        return null;\n    let above = node.resolve(pos), before = above.childBefore(pos);\n    if (before && before.name == \":\" && above.name == \"PseudoClassSelector\")\n        return { from: pos, options: pseudoClasses, span };\n    if (before && before.name == \":\" && above.name == \"Declaration\" || above.name == \"ArgList\")\n        return { from: pos, options: values, span };\n    if (above.name == \"Block\")\n        return { from: pos, options: properties(), span };\n    return null;\n};\n\n/// A language provider based on the [Lezer CSS\n/// parser](https://github.com/lezer-parser/css), extended with\n/// highlighting and indentation information.\nconst cssLanguage = LezerLanguage.define({\n    parser: parser.configure({\n        props: [\n            indentNodeProp.add({\n                Declaration: continuedIndent()\n            }),\n            foldNodeProp.add({\n                Block: foldInside\n            }),\n            styleTags({\n                \"import charset namespace keyframes\": tags$1.definitionKeyword,\n                \"media supports\": tags$1.controlKeyword,\n                \"from to\": tags$1.keyword,\n                NamespaceName: tags$1.namespace,\n                KeyframeName: tags$1.labelName,\n                TagName: tags$1.typeName,\n                ClassName: tags$1.className,\n                PseudoClassName: tags$1.constant(tags$1.className),\n                not: tags$1.operatorKeyword,\n                IdName: tags$1.labelName,\n                \"FeatureName PropertyName AttributeName\": tags$1.propertyName,\n                NumberLiteral: tags$1.number,\n                KeywordQuery: tags$1.keyword,\n                UnaryQueryOp: tags$1.operatorKeyword,\n                callee: tags$1.keyword,\n                \"CallTag ValueName\": tags$1.atom,\n                Callee: tags$1.variableName,\n                Unit: tags$1.unit,\n                \"UniversalSelector NestingSelector\": tags$1.definitionOperator,\n                AtKeyword: tags$1.keyword,\n                MatchOp: tags$1.compareOperator,\n                \"ChildOp SiblingOp, LogicOp\": tags$1.logicOperator,\n                BinOp: tags$1.arithmeticOperator,\n                Important: tags$1.modifier,\n                Comment: tags$1.blockComment,\n                ParenthesizedContent: tags$1.special(tags$1.name),\n                ColorLiteral: tags$1.color,\n                StringLiteral: tags$1.string,\n                \":\": tags$1.punctuation,\n                \"PseudoOp #\": tags$1.derefOperator,\n                \"; ,\": tags$1.separator,\n                \"( )\": tags$1.paren,\n                \"[ ]\": tags$1.squareBracket,\n                \"{ }\": tags$1.brace\n            })\n        ]\n    }),\n    languageData: {\n        commentTokens: { block: { open: \"/*\", close: \"*/\" } },\n        indentOnInput: /^\\s*\\}$/\n    }\n});\n/// CSS property and value keyword completion.\nconst cssCompletion = cssLanguage.data.of({ autocomplete: completeCSS });\n/// Language support for CSS.\nfunction css() {\n    return new LanguageSupport(cssLanguage, cssCompletion);\n}\n\nexport { css, cssCompletion, cssLanguage };\n","import { parser, configureNesting } from 'lezer-html';\nimport { cssLanguage, css } from '@codemirror/lang-css';\nimport { javascriptLanguage, javascript } from '@codemirror/lang-javascript';\nimport { syntaxTree, LezerLanguage, indentNodeProp, foldNodeProp, LanguageSupport } from '@codemirror/language';\nimport { styleTags, tags } from '@codemirror/highlight';\n\nconst Targets = [\"_blank\", \"_self\", \"_top\", \"_parent\"];\nconst Charsets = [\"ascii\", \"utf-8\", \"utf-16\", \"latin1\", \"latin1\"];\nconst Methods = [\"get\", \"post\", \"put\", \"delete\"];\nconst Encs = [\"application/x-www-form-urlencoded\", \"multipart/form-data\", \"text/plain\"];\nconst Bool = [\"true\", \"false\"];\nconst S = {}; // Empty tag spec\nconst Tags = {\n    a: {\n        attrs: {\n            href: null, ping: null, type: null,\n            media: null,\n            target: Targets,\n            hreflang: null\n        }\n    },\n    abbr: S,\n    acronym: S,\n    address: S,\n    applet: S,\n    area: {\n        attrs: {\n            alt: null, coords: null, href: null, target: null, ping: null,\n            media: null, hreflang: null, type: null,\n            shape: [\"default\", \"rect\", \"circle\", \"poly\"]\n        }\n    },\n    article: S,\n    aside: S,\n    audio: {\n        attrs: {\n            src: null, mediagroup: null,\n            crossorigin: [\"anonymous\", \"use-credentials\"],\n            preload: [\"none\", \"metadata\", \"auto\"],\n            autoplay: [\"autoplay\"],\n            loop: [\"loop\"],\n            controls: [\"controls\"]\n        }\n    },\n    b: S,\n    base: { attrs: { href: null, target: Targets } },\n    basefont: S,\n    bdi: S,\n    bdo: S,\n    big: S,\n    blockquote: { attrs: { cite: null } },\n    body: S,\n    br: S,\n    button: {\n        attrs: {\n            form: null, formaction: null, name: null, value: null,\n            autofocus: [\"autofocus\"],\n            disabled: [\"autofocus\"],\n            formenctype: Encs,\n            formmethod: Methods,\n            formnovalidate: [\"novalidate\"],\n            formtarget: Targets,\n            type: [\"submit\", \"reset\", \"button\"]\n        }\n    },\n    canvas: { attrs: { width: null, height: null } },\n    caption: S,\n    center: S,\n    cite: S,\n    code: S,\n    col: { attrs: { span: null } },\n    colgroup: { attrs: { span: null } },\n    command: {\n        attrs: {\n            type: [\"command\", \"checkbox\", \"radio\"],\n            label: null, icon: null, radiogroup: null, command: null, title: null,\n            disabled: [\"disabled\"],\n            checked: [\"checked\"]\n        }\n    },\n    data: { attrs: { value: null } },\n    datagrid: { attrs: { disabled: [\"disabled\"], multiple: [\"multiple\"] } },\n    datalist: { attrs: { data: null } },\n    dd: S,\n    del: { attrs: { cite: null, datetime: null } },\n    details: { attrs: { open: [\"open\"] } },\n    dfn: S,\n    dir: S,\n    div: S,\n    dl: S,\n    dt: S,\n    em: S,\n    embed: { attrs: { src: null, type: null, width: null, height: null } },\n    eventsource: { attrs: { src: null } },\n    fieldset: { attrs: { disabled: [\"disabled\"], form: null, name: null } },\n    figcaption: S,\n    figure: S,\n    font: S,\n    footer: S,\n    form: {\n        attrs: {\n            action: null, name: null,\n            \"accept-charset\": Charsets,\n            autocomplete: [\"on\", \"off\"],\n            enctype: Encs,\n            method: Methods,\n            novalidate: [\"novalidate\"],\n            target: Targets\n        }\n    },\n    frame: S,\n    frameset: S,\n    h1: S, h2: S, h3: S, h4: S, h5: S, h6: S,\n    head: {\n        children: [\"title\", \"base\", \"link\", \"style\", \"meta\", \"script\", \"noscript\", \"command\"]\n    },\n    header: S,\n    hgroup: S,\n    hr: S,\n    html: {\n        attrs: { manifest: null },\n        children: [\"head\", \"body\"]\n    },\n    i: S,\n    iframe: {\n        attrs: {\n            src: null, srcdoc: null, name: null, width: null, height: null,\n            sandbox: [\"allow-top-navigation\", \"allow-same-origin\", \"allow-forms\", \"allow-scripts\"],\n            seamless: [\"seamless\"]\n        }\n    },\n    img: {\n        attrs: {\n            alt: null, src: null, ismap: null, usemap: null, width: null, height: null,\n            crossorigin: [\"anonymous\", \"use-credentials\"]\n        }\n    },\n    input: {\n        attrs: {\n            alt: null, dirname: null, form: null, formaction: null,\n            height: null, list: null, max: null, maxlength: null, min: null,\n            name: null, pattern: null, placeholder: null, size: null, src: null,\n            step: null, value: null, width: null,\n            accept: [\"audio/*\", \"video/*\", \"image/*\"],\n            autocomplete: [\"on\", \"off\"],\n            autofocus: [\"autofocus\"],\n            checked: [\"checked\"],\n            disabled: [\"disabled\"],\n            formenctype: Encs,\n            formmethod: Methods,\n            formnovalidate: [\"novalidate\"],\n            formtarget: Targets,\n            multiple: [\"multiple\"],\n            readonly: [\"readonly\"],\n            required: [\"required\"],\n            type: [\"hidden\", \"text\", \"search\", \"tel\", \"url\", \"email\", \"password\", \"datetime\", \"date\", \"month\",\n                \"week\", \"time\", \"datetime-local\", \"number\", \"range\", \"color\", \"checkbox\", \"radio\",\n                \"file\", \"submit\", \"image\", \"reset\", \"button\"]\n        }\n    },\n    ins: { attrs: { cite: null, datetime: null } },\n    kbd: S,\n    keygen: {\n        attrs: {\n            challenge: null, form: null, name: null,\n            autofocus: [\"autofocus\"],\n            disabled: [\"disabled\"],\n            keytype: [\"RSA\"]\n        }\n    },\n    label: { attrs: { for: null, form: null } },\n    legend: S,\n    li: { attrs: { value: null } },\n    link: {\n        attrs: {\n            href: null, type: null,\n            hreflang: null,\n            media: null,\n            sizes: [\"all\", \"16x16\", \"16x16 32x32\", \"16x16 32x32 64x64\"]\n        }\n    },\n    map: { attrs: { name: null } },\n    mark: S,\n    menu: { attrs: { label: null, type: [\"list\", \"context\", \"toolbar\"] } },\n    meta: {\n        attrs: {\n            content: null,\n            charset: Charsets,\n            name: [\"viewport\", \"application-name\", \"author\", \"description\", \"generator\", \"keywords\"],\n            \"http-equiv\": [\"content-language\", \"content-type\", \"default-style\", \"refresh\"]\n        }\n    },\n    meter: { attrs: { value: null, min: null, low: null, high: null, max: null, optimum: null } },\n    nav: S,\n    noframes: S,\n    noscript: S,\n    object: {\n        attrs: {\n            data: null, type: null, name: null, usemap: null, form: null, width: null, height: null,\n            typemustmatch: [\"typemustmatch\"]\n        }\n    },\n    ol: { attrs: { reversed: [\"reversed\"], start: null, type: [\"1\", \"a\", \"A\", \"i\", \"I\"] },\n        children: [\"li\", \"script\", \"template\", \"ul\", \"ol\"] },\n    optgroup: { attrs: { disabled: [\"disabled\"], label: null } },\n    option: { attrs: { disabled: [\"disabled\"], label: null, selected: [\"selected\"], value: null } },\n    output: { attrs: { for: null, form: null, name: null } },\n    p: S,\n    param: { attrs: { name: null, value: null } },\n    pre: S,\n    progress: { attrs: { value: null, max: null } },\n    q: { attrs: { cite: null } },\n    rp: S,\n    rt: S,\n    ruby: S,\n    s: S,\n    samp: S,\n    script: {\n        attrs: {\n            type: [\"text/javascript\"],\n            src: null,\n            async: [\"async\"],\n            defer: [\"defer\"],\n            charset: Charsets\n        }\n    },\n    section: S,\n    select: {\n        attrs: {\n            form: null, name: null, size: null,\n            autofocus: [\"autofocus\"],\n            disabled: [\"disabled\"],\n            multiple: [\"multiple\"]\n        }\n    },\n    small: S,\n    source: { attrs: { src: null, type: null, media: null } },\n    span: S,\n    strike: S,\n    strong: S,\n    style: {\n        attrs: {\n            type: [\"text/css\"],\n            media: null,\n            scoped: null\n        }\n    },\n    sub: S,\n    summary: S,\n    sup: S,\n    table: S,\n    tbody: S,\n    td: { attrs: { colspan: null, rowspan: null, headers: null } },\n    textarea: {\n        attrs: {\n            dirname: null, form: null, maxlength: null, name: null, placeholder: null,\n            rows: null, cols: null,\n            autofocus: [\"autofocus\"],\n            disabled: [\"disabled\"],\n            readonly: [\"readonly\"],\n            required: [\"required\"],\n            wrap: [\"soft\", \"hard\"]\n        }\n    },\n    tfoot: S,\n    th: { attrs: { colspan: null, rowspan: null, headers: null, scope: [\"row\", \"col\", \"rowgroup\", \"colgroup\"] } },\n    thead: S,\n    time: { attrs: { datetime: null } },\n    title: S,\n    tr: S,\n    track: {\n        attrs: {\n            src: null, label: null, default: null,\n            kind: [\"subtitles\", \"captions\", \"descriptions\", \"chapters\", \"metadata\"],\n            srclang: null\n        }\n    },\n    tt: S,\n    u: S,\n    ul: { children: [\"li\", \"script\", \"template\", \"ul\", \"ol\"] },\n    var: S,\n    video: {\n        attrs: {\n            src: null, poster: null, width: null, height: null,\n            crossorigin: [\"anonymous\", \"use-credentials\"],\n            preload: [\"auto\", \"metadata\", \"none\"],\n            autoplay: [\"autoplay\"],\n            mediagroup: [\"movie\"],\n            muted: [\"muted\"],\n            controls: [\"controls\"]\n        }\n    },\n    wbr: S\n};\nconst GlobalAttrs = {\n    accesskey: null,\n    class: null,\n    contenteditable: Bool,\n    contextmenu: null,\n    dir: [\"ltr\", \"rtl\", \"auto\"],\n    draggable: [\"true\", \"false\", \"auto\"],\n    dropzone: [\"copy\", \"move\", \"link\", \"string:\", \"file:\"],\n    hidden: [\"hidden\"],\n    id: null,\n    inert: [\"inert\"],\n    itemid: null,\n    itemprop: null,\n    itemref: null,\n    itemscope: [\"itemscope\"],\n    itemtype: null,\n    lang: [\"ar\", \"bn\", \"de\", \"en-GB\", \"en-US\", \"es\", \"fr\", \"hi\", \"id\", \"ja\", \"pa\", \"pt\", \"ru\", \"tr\", \"zh\"],\n    spellcheck: Bool,\n    autocorrect: Bool,\n    autocapitalize: Bool,\n    style: null,\n    tabindex: null,\n    title: null,\n    translate: [\"yes\", \"no\"],\n    onclick: null,\n    rel: [\"stylesheet\", \"alternate\", \"author\", \"bookmark\", \"help\", \"license\", \"next\", \"nofollow\", \"noreferrer\", \"prefetch\", \"prev\", \"search\", \"tag\"],\n    role: /*@__PURE__*/\"alert application article banner button cell checkbox complementary contentinfo dialog document feed figure form grid gridcell heading img list listbox listitem main navigation region row rowgroup search switch tab table tabpanel textbox timer\".split(\" \"),\n    \"aria-activedescendant\": null,\n    \"aria-atomic\": Bool,\n    \"aria-autocomplete\": [\"inline\", \"list\", \"both\", \"none\"],\n    \"aria-busy\": Bool,\n    \"aria-checked\": [\"true\", \"false\", \"mixed\", \"undefined\"],\n    \"aria-controls\": null,\n    \"aria-describedby\": null,\n    \"aria-disabled\": Bool,\n    \"aria-dropeffect\": null,\n    \"aria-expanded\": [\"true\", \"false\", \"undefined\"],\n    \"aria-flowto\": null,\n    \"aria-grabbed\": [\"true\", \"false\", \"undefined\"],\n    \"aria-haspopup\": Bool,\n    \"aria-hidden\": Bool,\n    \"aria-invalid\": [\"true\", \"false\", \"grammar\", \"spelling\"],\n    \"aria-label\": null,\n    \"aria-labelledby\": null,\n    \"aria-level\": null,\n    \"aria-live\": [\"off\", \"polite\", \"assertive\"],\n    \"aria-multiline\": Bool,\n    \"aria-multiselectable\": Bool,\n    \"aria-owns\": null,\n    \"aria-posinset\": null,\n    \"aria-pressed\": [\"true\", \"false\", \"mixed\", \"undefined\"],\n    \"aria-readonly\": Bool,\n    \"aria-relevant\": null,\n    \"aria-required\": Bool,\n    \"aria-selected\": [\"true\", \"false\", \"undefined\"],\n    \"aria-setsize\": null,\n    \"aria-sort\": [\"ascending\", \"descending\", \"none\", \"other\"],\n    \"aria-valuemax\": null,\n    \"aria-valuemin\": null,\n    \"aria-valuenow\": null,\n    \"aria-valuetext\": null\n};\nconst AllTags = /*@__PURE__*/Object.keys(Tags);\nconst GlobalAttrNames = /*@__PURE__*/Object.keys(GlobalAttrs);\nfunction elementName(doc, tree) {\n    let tag = tree.firstChild;\n    let name = tag && tag.getChild(\"TagName\");\n    return name ? doc.sliceString(name.from, name.to) : \"\";\n}\nfunction findParentElement(tree, skip = false) {\n    for (let cur = tree.parent; cur; cur = cur.parent)\n        if (cur.name == \"Element\") {\n            if (skip)\n                skip = false;\n            else\n                return cur;\n        }\n    return null;\n}\nfunction allowedChildren(doc, tree) {\n    let parent = findParentElement(tree, true);\n    let parentInfo = parent ? Tags[elementName(doc, parent)] : null;\n    return (parentInfo === null || parentInfo === void 0 ? void 0 : parentInfo.children) || AllTags;\n}\nfunction openTags(doc, tree) {\n    let open = [];\n    for (let parent = tree; parent = findParentElement(parent);) {\n        let tagName = elementName(doc, parent);\n        if (tagName && parent.lastChild.name == \"CloseTag\")\n            break;\n        if (tagName && open.indexOf(tagName) < 0 && (tree.name == \"EndTag\" || tree.from >= parent.firstChild.to))\n            open.push(tagName);\n    }\n    return open;\n}\nconst identifier = /^[:\\-\\.\\w\\u00b7-\\uffff]+$/;\nfunction completeTag(state, tree, from, to) {\n    let end = /\\s*>/.test(state.sliceDoc(to, to + 5)) ? \"\" : \">\";\n    return { from, to,\n        options: allowedChildren(state.doc, tree).map(tagName => ({ label: tagName, type: \"type\" })).concat(openTags(state.doc, tree).map((tag, i) => ({ label: \"/\" + tag, apply: \"/\" + tag + end, type: \"type\", boost: 99 - i }))),\n        span: /^\\/?[:\\-\\.\\w\\u00b7-\\uffff]*$/ };\n}\nfunction completeCloseTag(state, tree, from, to) {\n    let end = /\\s*>/.test(state.sliceDoc(to, to + 5)) ? \"\" : \">\";\n    return { from, to,\n        options: openTags(state.doc, tree).map((tag, i) => ({ label: tag, apply: tag + end, type: \"type\", boost: 99 - i })),\n        span: identifier };\n}\nfunction completeStartTag(state, tree, pos) {\n    let options = [], level = 0;\n    for (let tagName of allowedChildren(state.doc, tree))\n        options.push({ label: \"<\" + tagName, type: \"type\" });\n    for (let open of openTags(state.doc, tree))\n        options.push({ label: \"</\" + open + \">\", type: \"type\", boost: 99 - level++ });\n    return { from: pos, to: pos, options, span: /^<\\/?[:\\-\\.\\w\\u00b7-\\uffff]*$/ };\n}\nfunction completeAttrName(state, tree, from, to) {\n    let elt = findParentElement(tree), info = elt ? Tags[elementName(state.doc, elt)] : null;\n    let names = (info && info.attrs ? Object.keys(info.attrs).concat(GlobalAttrNames) : GlobalAttrNames);\n    return { from, to,\n        options: names.map(attrName => ({ label: attrName, type: \"property\" })),\n        span: identifier };\n}\nfunction completeAttrValue(state, tree, from, to) {\n    var _a;\n    let nameNode = (_a = tree.parent) === null || _a === void 0 ? void 0 : _a.getChild(\"AttributeName\");\n    let options = [], span = undefined;\n    if (nameNode) {\n        let attrName = state.sliceDoc(nameNode.from, nameNode.to);\n        let attrs = GlobalAttrs[attrName];\n        if (!attrs) {\n            let elt = findParentElement(tree), info = elt ? Tags[elementName(state.doc, elt)] : null;\n            attrs = (info === null || info === void 0 ? void 0 : info.attrs) && info.attrs[attrName];\n        }\n        if (attrs) {\n            let base = state.sliceDoc(from, to).toLowerCase(), quoteStart = '\"', quoteEnd = '\"';\n            if (/^['\"]/.test(base)) {\n                span = base[0] == '\"' ? /^[^\"]*$/ : /^[^']*$/;\n                quoteStart = \"\";\n                quoteEnd = state.sliceDoc(to, to + 1) == base[0] ? \"\" : base[0];\n                base = base.slice(1);\n                from++;\n            }\n            else {\n                span = /^[^\\s<>='\"]*$/;\n            }\n            for (let value of attrs)\n                options.push({ label: value, apply: quoteStart + value + quoteEnd, type: \"constant\" });\n        }\n    }\n    return { from, to, options, span };\n}\nfunction completeHTML(context) {\n    let { state, pos } = context, around = syntaxTree(state).resolve(pos), tree = around.resolve(pos, -1);\n    if (tree.name == \"TagName\") {\n        return tree.parent && /CloseTag$/.test(tree.parent.name) ? completeCloseTag(state, tree, tree.from, pos)\n            : completeTag(state, tree, tree.from, pos);\n    }\n    else if (tree.name == \"StartTag\") {\n        return completeTag(state, tree, pos, pos);\n    }\n    else if (tree.name == \"StartCloseTag\" || tree.name == \"IncompleteCloseTag\") {\n        return completeCloseTag(state, tree, pos, pos);\n    }\n    else if (context.explicit && (tree.name == \"OpenTag\" || tree.name == \"SelfClosingTag\") || tree.name == \"AttributeName\") {\n        return completeAttrName(state, tree, tree.name == \"AttributeName\" ? tree.from : pos, pos);\n    }\n    else if (tree.name == \"Is\" || tree.name == \"AttributeValue\" || tree.name == \"UnquotedAttributeValue\") {\n        return completeAttrValue(state, tree, tree.name == \"Is\" ? pos : tree.from, pos);\n    }\n    else if (context.explicit && (around.name == \"Element\" || around.name == \"Text\" || around.name == \"Document\")) {\n        return completeStartTag(state, tree, pos);\n    }\n    else {\n        return null;\n    }\n}\n\n/**\nA language provider based on the [Lezer HTML\nparser](https://github.com/lezer-parser/html), wired up with the\nJavaScript and CSS parsers to parse the content of `<script>` and\n`<style>` tags.\n*/\nconst htmlLanguage = /*@__PURE__*/LezerLanguage.define({\n    parser: /*@__PURE__*/parser.configure({\n        props: [\n            /*@__PURE__*/indentNodeProp.add({\n                Element(context) {\n                    let after = /^(\\s*)(<\\/)?/.exec(context.textAfter);\n                    if (context.node.to <= context.pos + after[0].length)\n                        return context.continue();\n                    return context.lineIndent(context.state.doc.lineAt(context.node.from)) + (after[2] ? 0 : context.unit);\n                },\n                \"OpenTag CloseTag SelfClosingTag\"(context) {\n                    return context.column(context.node.from) + context.unit;\n                },\n                Document(context) {\n                    if (context.pos + /\\s*/.exec(context.textAfter)[0].length < context.node.to)\n                        return context.continue();\n                    let endElt = null, close;\n                    for (let cur = context.node;;) {\n                        let last = cur.lastChild;\n                        if (!last || last.name != \"Element\" || last.to != cur.to)\n                            break;\n                        endElt = cur = last;\n                    }\n                    if (endElt && !((close = endElt.lastChild) && (close.name == \"CloseTag\" || close.name == \"SelfClosingTag\")))\n                        return context.lineIndent(context.state.doc.lineAt(endElt.from)) + context.unit;\n                    return null;\n                }\n            }),\n            /*@__PURE__*/foldNodeProp.add({\n                Element(node) {\n                    let first = node.firstChild, last = node.lastChild;\n                    if (!first || first.name != \"OpenTag\")\n                        return null;\n                    return { from: first.to, to: last.name == \"CloseTag\" ? last.from : node.to };\n                }\n            }),\n            /*@__PURE__*/styleTags({\n                AttributeValue: tags.string,\n                \"Text RawText\": tags.content,\n                \"StartTag StartCloseTag SelfCloserEndTag EndTag SelfCloseEndTag\": tags.angleBracket,\n                TagName: tags.tagName,\n                \"MismatchedCloseTag/TagName\": [tags.tagName, tags.invalid],\n                AttributeName: tags.propertyName,\n                UnquotedAttributeValue: tags.string,\n                Is: tags.definitionOperator,\n                \"EntityReference CharacterReference\": tags.character,\n                Comment: tags.blockComment,\n                ProcessingInst: tags.processingInstruction,\n                DoctypeDecl: tags.documentMeta\n            })\n        ],\n        nested: /*@__PURE__*/configureNesting([\n            { tag: \"script\",\n                attrs(attrs) {\n                    return !attrs.type || /^(?:text|application)\\/(?:x-)?(?:java|ecma)script$|^module$|^$/i.test(attrs.type);\n                },\n                parser: javascriptLanguage.parser },\n            { tag: \"style\",\n                attrs(attrs) {\n                    return (!attrs.lang || attrs.lang == \"css\") && (!attrs.type || /^(text\\/)?(x-)?(stylesheet|css)$/i.test(attrs.type));\n                },\n                parser: cssLanguage.parser }\n        ])\n    }),\n    languageData: {\n        commentTokens: { block: { open: \"<!--\", close: \"-->\" } },\n        indentOnInput: /^\\s*<\\/$/\n    }\n});\n/**\nHTML tag completion. Opens and closes tags and attributes in a\ncontext-aware way.\n*/\nconst htmlCompletion = /*@__PURE__*/htmlLanguage.data.of({ autocomplete: completeHTML });\n/**\nLanguage support for HTML, including\n[`htmlCompletion`](https://codemirror.net/6/docs/ref/#lang-html.htmlCompletion) and JavaScript and\nCSS support extensions.\n*/\nfunction html() {\n    return new LanguageSupport(htmlLanguage, [htmlCompletion, javascript().support, css().support]);\n}\n\nexport { html, htmlCompletion, htmlLanguage };\n","import { parser } from 'lezer-javascript';\nimport { LezerLanguage, indentNodeProp, continuedIndent, flatIndent, delimitedIndent, foldNodeProp, foldInside, LanguageSupport } from '@codemirror/language';\nimport { styleTags, tags } from '@codemirror/highlight';\nimport { snippetCompletion, ifNotIn, completeFromList } from '@codemirror/autocomplete';\n\n/// A collection of JavaScript-related\n/// [snippets](#autocomplete.snippet).\nconst snippets = [\n    snippetCompletion(\"function ${name}(${params}) {\\n\\t${}\\n}\", {\n        label: \"function\",\n        detail: \"definition\",\n        type: \"keyword\"\n    }),\n    snippetCompletion(\"for (let ${index} = 0; ${index} < ${bound}; ${index}++) {\\n\\t${}\\n}\", {\n        label: \"for\",\n        detail: \"loop\",\n        type: \"keyword\"\n    }),\n    snippetCompletion(\"for (let ${name} of ${collection}) {\\n\\t${}\\n}\", {\n        label: \"for\",\n        detail: \"of loop\",\n        type: \"keyword\"\n    }),\n    snippetCompletion(\"try {\\n\\t${}\\n} catch (${error}) {\\n\\t${}\\n}\", {\n        label: \"try\",\n        detail: \"block\",\n        type: \"keyword\"\n    }),\n    snippetCompletion(\"class ${name} {\\n\\tconstructor(${params}) {\\n\\t\\t${}\\n\\t}\\n}\", {\n        label: \"class\",\n        detail: \"definition\",\n        type: \"keyword\"\n    }),\n    snippetCompletion(\"import {${names}} from \\\"${module}\\\"\\n${}\", {\n        label: \"import\",\n        detail: \"named\",\n        type: \"keyword\"\n    }),\n    snippetCompletion(\"import ${name} from \\\"${module}\\\"\\n${}\", {\n        label: \"import\",\n        detail: \"default\",\n        type: \"keyword\"\n    })\n];\n\n/// A language provider based on the [Lezer JavaScript\n/// parser](https://github.com/lezer-parser/javascript), extended with\n/// highlighting and indentation information.\nconst javascriptLanguage = LezerLanguage.define({\n    parser: parser.configure({\n        props: [\n            indentNodeProp.add({\n                IfStatement: continuedIndent({ except: /^\\s*({|else\\b)/ }),\n                TryStatement: continuedIndent({ except: /^\\s*({|catch|finally)\\b/ }),\n                LabeledStatement: flatIndent,\n                SwitchBody: context => {\n                    let after = context.textAfter, closed = /^\\s*\\}/.test(after), isCase = /^\\s*(case|default)\\b/.test(after);\n                    return context.baseIndent + (closed ? 0 : isCase ? 1 : 2) * context.unit;\n                },\n                Block: delimitedIndent({ closing: \"}\" }),\n                ArrowFunction: cx => cx.baseIndent + cx.unit,\n                \"TemplateString BlockComment\": () => -1,\n                \"Statement Property\": continuedIndent({ except: /^{/ }),\n                JSXElement(context) {\n                    let closed = /^\\s*<\\//.test(context.textAfter);\n                    return context.lineIndent(context.state.doc.lineAt(context.node.from)) + (closed ? 0 : context.unit);\n                },\n                JSXEscape(context) {\n                    let closed = /\\s*\\}/.test(context.textAfter);\n                    return context.lineIndent(context.state.doc.lineAt(context.node.from)) + (closed ? 0 : context.unit);\n                },\n                \"JSXOpenTag JSXSelfClosingTag\"(context) {\n                    return context.column(context.node.from) + context.unit;\n                }\n            }),\n            foldNodeProp.add({\n                \"Block ClassBody SwitchBody EnumBody ObjectExpression ArrayExpression\": foldInside,\n                BlockComment(tree) { return { from: tree.from + 2, to: tree.to - 2 }; }\n            }),\n            styleTags({\n                \"get set async static\": tags.modifier,\n                \"for while do if else switch try catch finally return throw break continue default case\": tags.controlKeyword,\n                \"in of await yield void typeof delete instanceof\": tags.operatorKeyword,\n                \"export import let var const function class extends\": tags.definitionKeyword,\n                \"with debugger from as new\": tags.keyword,\n                TemplateString: tags.special(tags.string),\n                Super: tags.atom,\n                BooleanLiteral: tags.bool,\n                this: tags.self,\n                null: tags.null,\n                Star: tags.modifier,\n                VariableName: tags.variableName,\n                \"CallExpression/VariableName\": tags.function(tags.variableName),\n                VariableDefinition: tags.definition(tags.variableName),\n                Label: tags.labelName,\n                PropertyName: tags.propertyName,\n                \"CallExpression/MemberExpression/PropertyName\": tags.function(tags.propertyName),\n                \"FunctionDeclaration/VariableDefinition\": tags.function(tags.definition(tags.variableName)),\n                \"ClassDeclaration/VariableDefinition\": tags.definition(tags.className),\n                PropertyNameDefinition: tags.definition(tags.propertyName),\n                UpdateOp: tags.updateOperator,\n                LineComment: tags.lineComment,\n                BlockComment: tags.blockComment,\n                Number: tags.number,\n                String: tags.string,\n                ArithOp: tags.arithmeticOperator,\n                LogicOp: tags.logicOperator,\n                BitOp: tags.bitwiseOperator,\n                CompareOp: tags.compareOperator,\n                RegExp: tags.regexp,\n                Equals: tags.definitionOperator,\n                \"Arrow : Spread\": tags.punctuation,\n                \"( )\": tags.paren,\n                \"[ ]\": tags.squareBracket,\n                \"{ }\": tags.brace,\n                \".\": tags.derefOperator,\n                \", ;\": tags.separator,\n                TypeName: tags.typeName,\n                TypeDefinition: tags.definition(tags.typeName),\n                \"type enum interface implements namespace module declare\": tags.definitionKeyword,\n                \"abstract global privacy readonly\": tags.modifier,\n                \"is keyof unique infer\": tags.operatorKeyword,\n                JSXAttributeValue: tags.string,\n                JSXText: tags.content,\n                \"JSXStartTag JSXStartCloseTag JSXSelfCloseEndTag JSXEndTag\": tags.angleBracket,\n                \"JSXIdentifier JSXNameSpacedName\": tags.tagName,\n                \"JSXAttribute/JSXIdentifier JSXAttribute/JSXNameSpacedName\": tags.propertyName\n            })\n        ]\n    }),\n    languageData: {\n        closeBrackets: { brackets: [\"(\", \"[\", \"{\", \"'\", '\"', \"`\"] },\n        commentTokens: { line: \"//\", block: { open: \"/*\", close: \"*/\" } },\n        indentOnInput: /^\\s*(?:case |default:|\\{|\\}|<\\/)$/,\n        wordChars: \"$\"\n    }\n});\n/// A language provider for TypeScript.\nconst typescriptLanguage = javascriptLanguage.configure({ dialect: \"ts\" });\n/// Language provider for JSX.\nconst jsxLanguage = javascriptLanguage.configure({ dialect: \"jsx\" });\n/// Language provider for JSX + TypeScript.\nconst tsxLanguage = javascriptLanguage.configure({ dialect: \"jsx ts\" });\n/// JavaScript support. Includes [snippet](#lang-javascript.snippets)\n/// completion.\nfunction javascript(config = {}) {\n    let lang = config.jsx ? (config.typescript ? tsxLanguage : jsxLanguage)\n        : config.typescript ? typescriptLanguage : javascriptLanguage;\n    return new LanguageSupport(lang, javascriptLanguage.data.of({\n        autocomplete: ifNotIn([\"LineComment\", \"BlockComment\", \"String\"], completeFromList(snippets))\n    }));\n}\n\n/// Connects an [ESLint](https://eslint.org/) linter to CodeMirror's\n/// [lint](#lint) integration. `eslint` should be an instance of the\n/// [`Linter`](https://eslint.org/docs/developer-guide/nodejs-api#linter)\n/// class, and `config` an optional ESLint configuration. The return\n/// value of this function can be passed to [`linter`](#lint.linter)\n/// to create a JavaScript linting extension.\n///\n/// Note that ESLint targets node, and is tricky to run in the\n/// browser. The [eslint4b](https://github.com/mysticatea/eslint4b)\n/// and\n/// [eslint4b-prebuilt](https://github.com/marijnh/eslint4b-prebuilt/)\n/// packages may help with that.\nfunction esLint(eslint, config) {\n    if (!config) {\n        config = {\n            parserOptions: { ecmaVersion: 2019, sourceType: \"module\" },\n            env: { browser: true, node: true, es6: true, es2015: true, es2017: true, es2020: true },\n            rules: {}\n        };\n        eslint.getRules().forEach((desc, name) => {\n            if (desc.meta.docs.recommended)\n                config.rules[name] = 2;\n        });\n    }\n    return (view) => {\n        let { state } = view, found = [];\n        for (let { from, to } of javascriptLanguage.findRegions(state)) {\n            let fromLine = state.doc.lineAt(from), offset = { line: fromLine.number - 1, col: from - fromLine.from, pos: from };\n            for (let d of eslint.verify(state.sliceDoc(from, to), config))\n                found.push(translateDiagnostic(d, state.doc, offset));\n        }\n        return found;\n    };\n}\nfunction mapPos(line, col, doc, offset) {\n    return doc.line(line + offset.line).from + col + (line == 1 ? offset.col - 1 : -1);\n}\nfunction translateDiagnostic(input, doc, offset) {\n    let start = mapPos(input.line, input.column, doc, offset);\n    let result = {\n        from: start,\n        to: input.endLine != null && input.endColumn != 1 ? mapPos(input.endLine, input.endColumn, doc, offset) : start,\n        message: input.message,\n        source: input.ruleId ? \"jshint:\" + input.ruleId : \"jshint\",\n        severity: input.severity == 1 ? \"warning\" : \"error\",\n    };\n    if (input.fix) {\n        let { range, text } = input.fix, from = range[0] + offset.pos - start, to = range[1] + offset.pos - start;\n        result.actions = [{\n                name: \"fix\",\n                apply(view, start) {\n                    view.dispatch({ changes: { from: start + from, to: start + to, insert: text }, scrollIntoView: true });\n                }\n            }];\n    }\n    return result;\n}\n\nexport { esLint, javascript, javascriptLanguage, jsxLanguage, snippets, tsxLanguage, typescriptLanguage };\n","import { NodeProp, Tree, TreeFragment, NodeType } from 'lezer-tree';\nimport { Text, countColumn } from '@codemirror/text';\nimport { Facet, EditorState, StateEffect, StateField, Transaction } from '@codemirror/state';\nimport { ViewPlugin } from '@codemirror/view';\n\n/**\nNode prop stored in a grammar's top syntax node to provide the\nfacet that stores language data for that language.\n*/\nconst languageDataProp = /*@__PURE__*/new NodeProp();\n/**\nHelper function to define a facet (to be added to the top syntax\nnode(s) for a language via\n[`languageDataProp`](https://codemirror.net/6/docs/ref/#language.languageDataProp)), that will be\nused to associate language data with the language. You\nprobably only need this when subclassing\n[`Language`](https://codemirror.net/6/docs/ref/#language.Language).\n*/\nfunction defineLanguageFacet(baseData) {\n    return Facet.define({\n        combine: baseData ? values => values.concat(baseData) : undefined\n    });\n}\n/**\nA language object manages parsing and per-language\n[metadata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt). Parse data is\nmanaged as a [Lezer](https://lezer.codemirror.net) tree. You'll\nwant to subclass this class for custom parsers, or use the\n[`LezerLanguage`](https://codemirror.net/6/docs/ref/#language.LezerLanguage) or\n[`StreamLanguage`](https://codemirror.net/6/docs/ref/#stream-parser.StreamLanguage) abstractions for\n[Lezer](https://lezer.codemirror.net/) or stream parsers.\n*/\nclass Language {\n    /**\n    Construct a language object. You usually don't need to invoke\n    this directly. But when you do, make sure you use\n    [`defineLanguageFacet`](https://codemirror.net/6/docs/ref/#language.defineLanguageFacet) to create\n    the first argument.\n    */\n    constructor(\n    /**\n    The [language data](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt) data\n    facet used for this language.\n    */\n    data, parser, \n    /**\n    The node type of the top node of trees produced by this parser.\n    */\n    topNode, extraExtensions = []) {\n        this.data = data;\n        this.topNode = topNode;\n        // Kludge to define EditorState.tree as a debugging helper,\n        // without the EditorState package actually knowing about\n        // languages and lezer trees.\n        if (!EditorState.prototype.hasOwnProperty(\"tree\"))\n            Object.defineProperty(EditorState.prototype, \"tree\", { get() { return syntaxTree(this); } });\n        this.parser = parser;\n        this.extension = [\n            language.of(this),\n            EditorState.languageData.of((state, pos) => state.facet(languageDataFacetAt(state, pos)))\n        ].concat(extraExtensions);\n    }\n    /**\n    Query whether this language is active at the given position.\n    */\n    isActiveAt(state, pos) {\n        return languageDataFacetAt(state, pos) == this.data;\n    }\n    /**\n    Find the document regions that were parsed using this language.\n    The returned regions will _include_ any nested languages rooted\n    in this language, when those exist.\n    */\n    findRegions(state) {\n        let lang = state.facet(language);\n        if ((lang === null || lang === void 0 ? void 0 : lang.data) == this.data)\n            return [{ from: 0, to: state.doc.length }];\n        if (!lang || !lang.allowsNesting)\n            return [];\n        let result = [];\n        syntaxTree(state).iterate({\n            enter: (type, from, to) => {\n                if (type.isTop && type.prop(languageDataProp) == this.data) {\n                    result.push({ from, to });\n                    return false;\n                }\n                return undefined;\n            }\n        });\n        return result;\n    }\n    /**\n    Indicates whether this language allows nested languages. The\n    default implementation returns true.\n    */\n    get allowsNesting() { return true; }\n    /**\n    Use this language to parse the given string into a tree.\n    */\n    parseString(code) {\n        let doc = Text.of(code.split(\"\\n\"));\n        let parse = this.parser.startParse(new DocInput(doc), 0, new EditorParseContext(this.parser, EditorState.create({ doc }), [], Tree.empty, { from: 0, to: code.length }, [], null));\n        let tree;\n        while (!(tree = parse.advance())) { }\n        return tree;\n    }\n}\n/**\n@internal\n*/\nLanguage.setState = /*@__PURE__*/StateEffect.define();\nfunction languageDataFacetAt(state, pos) {\n    let topLang = state.facet(language);\n    if (!topLang)\n        return null;\n    if (!topLang.allowsNesting)\n        return topLang.data;\n    let tree = syntaxTree(state);\n    let target = tree.resolve(pos, -1);\n    while (target) {\n        let facet = target.type.prop(languageDataProp);\n        if (facet)\n            return facet;\n        target = target.parent;\n    }\n    return topLang.data;\n}\n/**\nA subclass of [`Language`](https://codemirror.net/6/docs/ref/#language.Language) for use with\n[Lezer](https://lezer.codemirror.net/docs/ref#lezer.Parser)\nparsers.\n*/\nclass LezerLanguage extends Language {\n    constructor(data, parser) {\n        super(data, parser, parser.topNode);\n        this.parser = parser;\n    }\n    /**\n    Define a language from a parser.\n    */\n    static define(spec) {\n        let data = defineLanguageFacet(spec.languageData);\n        return new LezerLanguage(data, spec.parser.configure({\n            props: [languageDataProp.add(type => type.isTop ? data : undefined)]\n        }));\n    }\n    /**\n    Create a new instance of this language with a reconfigured\n    version of its parser.\n    */\n    configure(options) {\n        return new LezerLanguage(this.data, this.parser.configure(options));\n    }\n    get allowsNesting() { return this.parser.hasNested; }\n}\n/**\nGet the syntax tree for a state, which is the current (possibly\nincomplete) parse tree of active [language](https://codemirror.net/6/docs/ref/#language.Language),\nor the empty tree if there is no language available.\n*/\nfunction syntaxTree(state) {\n    let field = state.field(Language.state, false);\n    return field ? field.tree : Tree.empty;\n}\n/**\nTry to get a parse tree that spans at least up to `upto`. The\nmethod will do at most `timeout` milliseconds of work to parse\nup to that point if the tree isn't already available.\n*/\nfunction ensureSyntaxTree(state, upto, timeout = 50) {\n    var _a;\n    let parse = (_a = state.field(Language.state, false)) === null || _a === void 0 ? void 0 : _a.context;\n    return !parse ? null : parse.tree.length >= upto || parse.work(timeout, upto) ? parse.tree : null;\n}\n// Lezer-style Input object for a Text document.\nclass DocInput {\n    constructor(doc, length = doc.length) {\n        this.doc = doc;\n        this.length = length;\n        this.cursorPos = 0;\n        this.string = \"\";\n        this.prevString = \"\";\n        this.cursor = doc.iter();\n    }\n    syncTo(pos) {\n        if (pos < this.cursorPos) { // Reset the cursor if we have to go back\n            this.cursor = this.doc.iter();\n            this.cursorPos = 0;\n        }\n        this.prevString = pos == this.cursorPos ? this.string : \"\";\n        this.string = this.cursor.next(pos - this.cursorPos).value;\n        this.cursorPos = pos + this.string.length;\n        return this.cursorPos - this.string.length;\n    }\n    get(pos) {\n        if (pos >= this.length)\n            return -1;\n        let stringStart = this.cursorPos - this.string.length;\n        if (pos < stringStart || pos >= this.cursorPos) {\n            if (pos < stringStart && pos >= stringStart - this.prevString.length)\n                return this.prevString.charCodeAt(pos - (stringStart - this.prevString.length));\n            stringStart = this.syncTo(pos);\n        }\n        return this.string.charCodeAt(pos - stringStart);\n    }\n    lineAfter(pos) {\n        if (pos >= this.length || pos < 0)\n            return \"\";\n        let stringStart = this.cursorPos - this.string.length;\n        if (pos < stringStart || pos >= this.cursorPos)\n            stringStart = this.syncTo(pos);\n        return this.cursor.lineBreak ? \"\" : this.string.slice(pos - stringStart, Math.min(this.length - stringStart, this.string.length));\n    }\n    read(from, to) {\n        let stringStart = this.cursorPos - this.string.length;\n        if (from < stringStart || to >= this.cursorPos)\n            return this.doc.sliceString(from, to);\n        else\n            return this.string.slice(from - stringStart, to - stringStart);\n    }\n    clip(at) {\n        return new DocInput(this.doc, at);\n    }\n}\n/**\nA parse context provided to parsers working on the editor content.\n*/\nclass EditorParseContext {\n    /**\n    @internal\n    */\n    constructor(parser, \n    /**\n    The current editor state.\n    */\n    state, \n    /**\n    Tree fragments that can be reused by incremental re-parses.\n    */\n    fragments = [], \n    /**\n    @internal\n    */\n    tree, \n    /**\n    The current editor viewport (or some overapproximation\n    thereof). Intended to be used for opportunistically avoiding\n    work (in which case\n    [`skipUntilInView`](https://codemirror.net/6/docs/ref/#language.EditorParseContext.skipUntilInView)\n    should be called to make sure the parser is restarted when the\n    skipped region becomes visible).\n    */\n    viewport, \n    /**\n    @internal\n    */\n    skipped, \n    /**\n    This is where skipping parsers can register a promise that,\n    when resolved, will schedule a new parse. It is cleared when\n    the parse worker picks up the promise. @internal\n    */\n    scheduleOn) {\n        this.parser = parser;\n        this.state = state;\n        this.fragments = fragments;\n        this.tree = tree;\n        this.viewport = viewport;\n        this.skipped = skipped;\n        this.scheduleOn = scheduleOn;\n        this.parse = null;\n        /**\n        @internal\n        */\n        this.tempSkipped = [];\n    }\n    /**\n    @internal\n    */\n    work(time, upto) {\n        if (this.tree != Tree.empty && (upto == null ? this.tree.length == this.state.doc.length : this.tree.length >= upto)) {\n            this.takeTree();\n            return true;\n        }\n        if (!this.parse)\n            this.parse = this.parser.startParse(new DocInput(this.state.doc), 0, this);\n        let endTime = Date.now() + time;\n        for (;;) {\n            let done = this.parse.advance();\n            if (done) {\n                this.fragments = this.withoutTempSkipped(TreeFragment.addTree(done));\n                this.parse = null;\n                this.tree = done;\n                return true;\n            }\n            else if (upto != null && this.parse.pos >= upto) {\n                this.takeTree();\n                return true;\n            }\n            if (Date.now() > endTime)\n                return false;\n        }\n    }\n    /**\n    @internal\n    */\n    takeTree() {\n        if (this.parse && this.parse.pos > this.tree.length) {\n            this.tree = this.parse.forceFinish();\n            this.fragments = this.withoutTempSkipped(TreeFragment.addTree(this.tree, this.fragments, true));\n        }\n    }\n    withoutTempSkipped(fragments) {\n        for (let r; r = this.tempSkipped.pop();)\n            fragments = cutFragments(fragments, r.from, r.to);\n        return fragments;\n    }\n    /**\n    @internal\n    */\n    changes(changes, newState) {\n        let { fragments, tree, viewport, skipped } = this;\n        this.takeTree();\n        if (!changes.empty) {\n            let ranges = [];\n            changes.iterChangedRanges((fromA, toA, fromB, toB) => ranges.push({ fromA, toA, fromB, toB }));\n            fragments = TreeFragment.applyChanges(fragments, ranges);\n            tree = Tree.empty;\n            viewport = { from: changes.mapPos(viewport.from, -1), to: changes.mapPos(viewport.to, 1) };\n            if (this.skipped.length) {\n                skipped = [];\n                for (let r of this.skipped) {\n                    let from = changes.mapPos(r.from, 1), to = changes.mapPos(r.to, -1);\n                    if (from < to)\n                        skipped.push({ from, to });\n                }\n            }\n        }\n        return new EditorParseContext(this.parser, newState, fragments, tree, viewport, skipped, this.scheduleOn);\n    }\n    /**\n    @internal\n    */\n    updateViewport(viewport) {\n        this.viewport = viewport;\n        let startLen = this.skipped.length;\n        for (let i = 0; i < this.skipped.length; i++) {\n            let { from, to } = this.skipped[i];\n            if (from < viewport.to && to > viewport.from) {\n                this.fragments = cutFragments(this.fragments, from, to);\n                this.skipped.splice(i--, 1);\n            }\n        }\n        return this.skipped.length < startLen;\n    }\n    /**\n    @internal\n    */\n    reset() {\n        if (this.parse) {\n            this.takeTree();\n            this.parse = null;\n        }\n    }\n    /**\n    Notify the parse scheduler that the given region was skipped\n    because it wasn't in view, and the parse should be restarted\n    when it comes into view.\n    */\n    skipUntilInView(from, to) {\n        this.skipped.push({ from, to });\n    }\n    /**\n    Returns a parser intended to be used as placeholder when\n    asynchronously loading a nested parser. It'll skip its input and\n    mark it as not-really-parsed, so that the next update will parse\n    it again.\n    \n    When `until` is given, a reparse will be scheduled when that\n    promise resolves.\n    */\n    static getSkippingParser(until) {\n        return {\n            startParse(input, startPos, context) {\n                return {\n                    pos: startPos,\n                    advance() {\n                        let ecx = context;\n                        ecx.tempSkipped.push({ from: startPos, to: input.length });\n                        if (until)\n                            ecx.scheduleOn = ecx.scheduleOn ? Promise.all([ecx.scheduleOn, until]) : until;\n                        this.pos = input.length;\n                        return new Tree(NodeType.none, [], [], input.length - startPos);\n                    },\n                    forceFinish() { return this.advance(); }\n                };\n            }\n        };\n    }\n    /**\n    @internal\n    */\n    movedPast(pos) {\n        return this.tree.length < pos && this.parse && this.parse.pos >= pos;\n    }\n}\n/**\nFIXME backwards compatible shim, remove on next major @internal\n*/\nEditorParseContext.skippingParser = /*@__PURE__*/EditorParseContext.getSkippingParser();\nfunction cutFragments(fragments, from, to) {\n    return TreeFragment.applyChanges(fragments, [{ fromA: from, toA: to, fromB: from, toB: to }]);\n}\nclass LanguageState {\n    constructor(\n    // A mutable parse state that is used to preserve work done during\n    // the lifetime of a state when moving to the next state.\n    context) {\n        this.context = context;\n        this.tree = context.tree;\n    }\n    apply(tr) {\n        if (!tr.docChanged)\n            return this;\n        let newCx = this.context.changes(tr.changes, tr.state);\n        // If the previous parse wasn't done, go forward only up to its\n        // end position or the end of the viewport, to avoid slowing down\n        // state updates with parse work beyond the viewport.\n        let upto = this.context.tree.length == tr.startState.doc.length ? undefined\n            : Math.max(tr.changes.mapPos(this.context.tree.length), newCx.viewport.to);\n        if (!newCx.work(25 /* Apply */, upto))\n            newCx.takeTree();\n        return new LanguageState(newCx);\n    }\n    static init(state) {\n        let parseState = new EditorParseContext(state.facet(language).parser, state, [], Tree.empty, { from: 0, to: state.doc.length }, [], null);\n        if (!parseState.work(25 /* Apply */))\n            parseState.takeTree();\n        return new LanguageState(parseState);\n    }\n}\nLanguage.state = /*@__PURE__*/StateField.define({\n    create: LanguageState.init,\n    update(value, tr) {\n        for (let e of tr.effects)\n            if (e.is(Language.setState))\n                return e.value;\n        if (tr.startState.facet(language) != tr.state.facet(language))\n            return LanguageState.init(tr.state);\n        return value.apply(tr);\n    }\n});\nlet requestIdle = typeof window != \"undefined\" && window.requestIdleCallback ||\n    ((callback, { timeout }) => setTimeout(callback, timeout));\nlet cancelIdle = typeof window != \"undefined\" && window.cancelIdleCallback || clearTimeout;\nconst parseWorker = /*@__PURE__*/ViewPlugin.fromClass(class ParseWorker {\n    constructor(view) {\n        this.view = view;\n        this.working = -1;\n        // End of the current time chunk\n        this.chunkEnd = -1;\n        // Milliseconds of budget left for this chunk\n        this.chunkBudget = -1;\n        this.work = this.work.bind(this);\n        this.scheduleWork();\n    }\n    update(update) {\n        let cx = this.view.state.field(Language.state).context;\n        if (update.viewportChanged) {\n            if (cx.updateViewport(update.view.viewport))\n                cx.reset();\n            if (this.view.viewport.to > cx.tree.length)\n                this.scheduleWork();\n        }\n        if (update.docChanged) {\n            if (this.view.hasFocus)\n                this.chunkBudget += 50 /* ChangeBonus */;\n            this.scheduleWork();\n        }\n        this.checkAsyncSchedule(cx);\n    }\n    scheduleWork() {\n        if (this.working > -1)\n            return;\n        let { state } = this.view, field = state.field(Language.state), frags = field.context.fragments;\n        if (field.tree.length >= state.doc.length && frags.length && frags[0].from == 0 && frags[0].to >= state.doc.length)\n            return;\n        this.working = requestIdle(this.work, { timeout: 500 /* Pause */ });\n    }\n    work(deadline) {\n        this.working = -1;\n        let now = Date.now();\n        if (this.chunkEnd < now && (this.chunkEnd < 0 || this.view.hasFocus)) { // Start a new chunk\n            this.chunkEnd = now + 30000 /* ChunkTime */;\n            this.chunkBudget = 3000 /* ChunkBudget */;\n        }\n        if (this.chunkBudget <= 0)\n            return; // No more budget\n        let { state, viewport: { to: vpTo } } = this.view, field = state.field(Language.state);\n        if (field.tree.length >= vpTo + 1000000 /* MaxParseAhead */)\n            return;\n        let time = Math.min(this.chunkBudget, deadline ? Math.max(25 /* MinSlice */, deadline.timeRemaining()) : 100 /* Slice */);\n        let done = field.context.work(time, vpTo + 1000000 /* MaxParseAhead */);\n        this.chunkBudget -= Date.now() - now;\n        if (done || this.chunkBudget <= 0 || field.context.movedPast(vpTo)) {\n            field.context.takeTree();\n            this.view.dispatch({ effects: Language.setState.of(new LanguageState(field.context)) });\n        }\n        if (!done && this.chunkBudget > 0)\n            this.scheduleWork();\n        this.checkAsyncSchedule(field.context);\n    }\n    checkAsyncSchedule(cx) {\n        if (cx.scheduleOn) {\n            cx.scheduleOn.then(() => this.scheduleWork());\n            cx.scheduleOn = null;\n        }\n    }\n    destroy() {\n        if (this.working >= 0)\n            cancelIdle(this.working);\n    }\n}, {\n    eventHandlers: { focus() { this.scheduleWork(); } }\n});\n/**\nThe facet used to associate a language with an editor state.\n*/\nconst language = /*@__PURE__*/Facet.define({\n    combine(languages) { return languages.length ? languages[0] : null; },\n    enables: [Language.state, parseWorker]\n});\n/**\nThis class bundles a [language object](https://codemirror.net/6/docs/ref/#language.Language) with an\noptional set of supporting extensions. Language packages are\nencouraged to export a function that optionally takes a\nconfiguration object and returns a `LanguageSupport` instance, as\nthe main way for client code to use the package.\n*/\nclass LanguageSupport {\n    /**\n    Create a support object.\n    */\n    constructor(\n    /**\n    The language object.\n    */\n    language, \n    /**\n    An optional set of supporting extensions. When nesting a\n    language in another language, the outer language is encouraged\n    to include the supporting extensions for its inner languages\n    in its own set of support extensions.\n    */\n    support = []) {\n        this.language = language;\n        this.support = support;\n        this.extension = [language, support];\n    }\n}\n/**\nLanguage descriptions are used to store metadata about languages\nand to dynamically load them. Their main role is finding the\nappropriate language for a filename or dynamically loading nested\nparsers.\n*/\nclass LanguageDescription {\n    constructor(\n    /**\n    The name of this language.\n    */\n    name, \n    /**\n    Alternative names for the mode (lowercased, includes `this.name`).\n    */\n    alias, \n    /**\n    File extensions associated with this language.\n    */\n    extensions, \n    /**\n    Optional filename pattern that should be associated with this\n    language.\n    */\n    filename, loadFunc) {\n        this.name = name;\n        this.alias = alias;\n        this.extensions = extensions;\n        this.filename = filename;\n        this.loadFunc = loadFunc;\n        /**\n        If the language has been loaded, this will hold its value.\n        */\n        this.support = undefined;\n        this.loading = null;\n    }\n    /**\n    Start loading the the language. Will return a promise that\n    resolves to a [`LanguageSupport`](https://codemirror.net/6/docs/ref/#language.LanguageSupport)\n    object when the language successfully loads.\n    */\n    load() {\n        return this.loading || (this.loading = this.loadFunc().then(support => this.support = support, err => { this.loading = null; throw err; }));\n    }\n    /**\n    Create a language description.\n    */\n    static of(spec) {\n        return new LanguageDescription(spec.name, (spec.alias || []).concat(spec.name).map(s => s.toLowerCase()), spec.extensions || [], spec.filename, spec.load);\n    }\n    /**\n    Look for a language in the given array of descriptions that\n    matches the filename. Will first match\n    [`filename`](https://codemirror.net/6/docs/ref/#language.LanguageDescription.filename) patterns,\n    and then [extensions](https://codemirror.net/6/docs/ref/#language.LanguageDescription.extensions),\n    and return the first language that matches.\n    */\n    static matchFilename(descs, filename) {\n        for (let d of descs)\n            if (d.filename && d.filename.test(filename))\n                return d;\n        let ext = /\\.([^.]+)$/.exec(filename);\n        if (ext)\n            for (let d of descs)\n                if (d.extensions.indexOf(ext[1]) > -1)\n                    return d;\n        return null;\n    }\n    /**\n    Look for a language whose name or alias matches the the given\n    name (case-insensitively). If `fuzzy` is true, and no direct\n    matchs is found, this'll also search for a language whose name\n    or alias occurs in the string (for names shorter than three\n    characters, only when surrounded by non-word characters).\n    */\n    static matchLanguageName(descs, name, fuzzy = true) {\n        name = name.toLowerCase();\n        for (let d of descs)\n            if (d.alias.some(a => a == name))\n                return d;\n        if (fuzzy)\n            for (let d of descs)\n                for (let a of d.alias) {\n                    let found = name.indexOf(a);\n                    if (found > -1 && (a.length > 2 || !/\\w/.test(name[found - 1]) && !/\\w/.test(name[found + a.length])))\n                        return d;\n                }\n        return null;\n    }\n}\n\n/**\nFacet that defines a way to provide a function that computes the\nappropriate indentation depth at the start of a given line, or\n`null` to indicate no appropriate indentation could be determined.\n*/\nconst indentService = /*@__PURE__*/Facet.define();\n/**\nFacet for overriding the unit by which indentation happens.\nShould be a string consisting either entirely of spaces or\nentirely of tabs. When not set, this defaults to 2 spaces.\n*/\nconst indentUnit = /*@__PURE__*/Facet.define({\n    combine: values => {\n        if (!values.length)\n            return \"  \";\n        if (!/^(?: +|\\t+)$/.test(values[0]))\n            throw new Error(\"Invalid indent unit: \" + JSON.stringify(values[0]));\n        return values[0];\n    }\n});\n/**\nReturn the _column width_ of an indent unit in the state.\nDetermined by the [`indentUnit`](https://codemirror.net/6/docs/ref/#language.indentUnit)\nfacet, and [`tabSize`](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) when that\ncontains tabs.\n*/\nfunction getIndentUnit(state) {\n    let unit = state.facet(indentUnit);\n    return unit.charCodeAt(0) == 9 ? state.tabSize * unit.length : unit.length;\n}\n/**\nCreate an indentation string that covers columns 0 to `cols`.\nWill use tabs for as much of the columns as possible when the\n[`indentUnit`](https://codemirror.net/6/docs/ref/#language.indentUnit) facet contains\ntabs.\n*/\nfunction indentString(state, cols) {\n    let result = \"\", ts = state.tabSize;\n    if (state.facet(indentUnit).charCodeAt(0) == 9)\n        while (cols >= ts) {\n            result += \"\\t\";\n            cols -= ts;\n        }\n    for (let i = 0; i < cols; i++)\n        result += \" \";\n    return result;\n}\n/**\nGet the indentation at the given position. Will first consult any\n[indent services](https://codemirror.net/6/docs/ref/#language.indentService) that are registered,\nand if none of those return an indentation, this will check the\nsyntax tree for the [indent node prop](https://codemirror.net/6/docs/ref/#language.indentNodeProp)\nand use that if found. Returns a number when an indentation could\nbe determined, and null otherwise.\n*/\nfunction getIndentation(context, pos) {\n    if (context instanceof EditorState)\n        context = new IndentContext(context);\n    for (let service of context.state.facet(indentService)) {\n        let result = service(context, pos);\n        if (result != null)\n            return result;\n    }\n    let tree = syntaxTree(context.state);\n    return tree ? syntaxIndentation(context, tree, pos) : null;\n}\n/**\nIndentation contexts are used when calling [indentation\nservices](https://codemirror.net/6/docs/ref/#language.indentService). They provide helper utilities\nuseful in indentation logic, and can selectively override the\nindentation reported for some lines.\n*/\nclass IndentContext {\n    /**\n    Create an indent context.\n    */\n    constructor(\n    /**\n    The editor state.\n    */\n    state, \n    /**\n    @internal\n    */\n    options = {}) {\n        this.state = state;\n        this.options = options;\n        this.unit = getIndentUnit(state);\n    }\n    /**\n    Get the text directly after `pos`, either the entire line\n    or the next 100 characters, whichever is shorter.\n    */\n    textAfterPos(pos) {\n        var _a, _b;\n        let sim = (_a = this.options) === null || _a === void 0 ? void 0 : _a.simulateBreak;\n        if (pos == sim && ((_b = this.options) === null || _b === void 0 ? void 0 : _b.simulateDoubleBreak))\n            return \"\";\n        return this.state.sliceDoc(pos, Math.min(pos + 100, sim != null && sim > pos ? sim : 1e9, this.state.doc.lineAt(pos).to));\n    }\n    /**\n    Find the column for the given position.\n    */\n    column(pos) {\n        var _a;\n        let line = this.state.doc.lineAt(pos), text = line.text.slice(0, pos - line.from);\n        let result = this.countColumn(text, pos - line.from);\n        let override = ((_a = this.options) === null || _a === void 0 ? void 0 : _a.overrideIndentation) ? this.options.overrideIndentation(line.from) : -1;\n        if (override > -1)\n            result += override - this.countColumn(text, text.search(/\\S/));\n        return result;\n    }\n    /**\n    find the column position (taking tabs into account) of the given\n    position in the given string.\n    */\n    countColumn(line, pos) {\n        return countColumn(pos < 0 ? line : line.slice(0, pos), 0, this.state.tabSize);\n    }\n    /**\n    Find the indentation column of the given document line.\n    */\n    lineIndent(line) {\n        var _a;\n        let override = (_a = this.options) === null || _a === void 0 ? void 0 : _a.overrideIndentation;\n        if (override) {\n            let overriden = override(line.from);\n            if (overriden > -1)\n                return overriden;\n        }\n        return this.countColumn(line.text, line.text.search(/\\S/));\n    }\n}\n/**\nA syntax tree node prop used to associate indentation strategies\nwith node types. Such a strategy is a function from an indentation\ncontext to a column number or null, where null indicates that no\ndefinitive indentation can be determined.\n*/\nconst indentNodeProp = /*@__PURE__*/new NodeProp();\n// Compute the indentation for a given position from the syntax tree.\nfunction syntaxIndentation(cx, ast, pos) {\n    let tree = ast.resolve(pos);\n    // Enter previous nodes that end in empty error terms, which means\n    // they were broken off by error recovery, so that indentation\n    // works even if the constructs haven't been finished.\n    for (let scan = tree, scanPos = pos;;) {\n        let last = scan.childBefore(scanPos);\n        if (!last)\n            break;\n        if (last.type.isError && last.from == last.to) {\n            tree = scan;\n            scanPos = last.from;\n        }\n        else {\n            scan = last;\n            scanPos = scan.to + 1;\n        }\n    }\n    return indentFrom(tree, pos, cx);\n}\nfunction ignoreClosed(cx) {\n    var _a, _b;\n    return cx.pos == ((_a = cx.options) === null || _a === void 0 ? void 0 : _a.simulateBreak) && ((_b = cx.options) === null || _b === void 0 ? void 0 : _b.simulateDoubleBreak);\n}\nfunction indentStrategy(tree) {\n    let strategy = tree.type.prop(indentNodeProp);\n    if (strategy)\n        return strategy;\n    let first = tree.firstChild, close;\n    if (first && (close = first.type.prop(NodeProp.closedBy))) {\n        let last = tree.lastChild, closed = last && close.indexOf(last.name) > -1;\n        return cx => delimitedStrategy(cx, true, 1, undefined, closed && !ignoreClosed(cx) ? last.from : undefined);\n    }\n    return tree.parent == null ? topIndent : null;\n}\nfunction indentFrom(node, pos, base) {\n    for (; node; node = node.parent) {\n        let strategy = indentStrategy(node);\n        if (strategy)\n            return strategy(new TreeIndentContext(base, pos, node));\n    }\n    return null;\n}\nfunction topIndent() { return 0; }\n/**\nObjects of this type provide context information and helper\nmethods to indentation functions.\n*/\nclass TreeIndentContext extends IndentContext {\n    /**\n    @internal\n    */\n    constructor(base, \n    /**\n    The position at which indentation is being computed.\n    */\n    pos, \n    /**\n    The syntax tree node to which the indentation strategy\n    applies.\n    */\n    node) {\n        super(base.state, base.options);\n        this.base = base;\n        this.pos = pos;\n        this.node = node;\n    }\n    /**\n    Get the text directly after `this.pos`, either the entire line\n    or the next 100 characters, whichever is shorter.\n    */\n    get textAfter() {\n        return this.textAfterPos(this.pos);\n    }\n    /**\n    Get the indentation at the reference line for `this.node`, which\n    is the line on which it starts, unless there is a node that is\n    _not_ a parent of this node covering the start of that line. If\n    so, the line at the start of that node is tried, again skipping\n    on if it is covered by another such node.\n    */\n    get baseIndent() {\n        let line = this.state.doc.lineAt(this.node.from);\n        // Skip line starts that are covered by a sibling (or cousin, etc)\n        for (;;) {\n            let atBreak = this.node.resolve(line.from);\n            while (atBreak.parent && atBreak.parent.from == atBreak.from)\n                atBreak = atBreak.parent;\n            if (isParent(atBreak, this.node))\n                break;\n            line = this.state.doc.lineAt(atBreak.from);\n        }\n        return this.lineIndent(line);\n    }\n    /**\n    Continue looking for indentations in the node's parent nodes,\n    and return the result of that.\n    */\n    continue() {\n        let parent = this.node.parent;\n        return parent ? indentFrom(parent, this.pos, this.base) : 0;\n    }\n}\nfunction isParent(parent, of) {\n    for (let cur = of; cur; cur = cur.parent)\n        if (parent == cur)\n            return true;\n    return false;\n}\n// Check whether a delimited node is aligned (meaning there are\n// non-skipped nodes on the same line as the opening delimiter). And\n// if so, return the opening token.\nfunction bracketedAligned(context) {\n    var _a;\n    let tree = context.node;\n    let openToken = tree.childAfter(tree.from), last = tree.lastChild;\n    if (!openToken)\n        return null;\n    let sim = (_a = context.options) === null || _a === void 0 ? void 0 : _a.simulateBreak;\n    let openLine = context.state.doc.lineAt(openToken.from);\n    let lineEnd = sim == null || sim <= openLine.from ? openLine.to : Math.min(openLine.to, sim);\n    for (let pos = openToken.to;;) {\n        let next = tree.childAfter(pos);\n        if (!next || next == last)\n            return null;\n        if (!next.type.isSkipped)\n            return next.from < lineEnd ? openToken : null;\n        pos = next.to;\n    }\n}\n/**\nAn indentation strategy for delimited (usually bracketed) nodes.\nWill, by default, indent one unit more than the parent's base\nindent unless the line starts with a closing token. When `align`\nis true and there are non-skipped nodes on the node's opening\nline, the content of the node will be aligned with the end of the\nopening node, like this:\n\n    foo(bar,\n        baz)\n*/\nfunction delimitedIndent({ closing, align = true, units = 1 }) {\n    return (context) => delimitedStrategy(context, align, units, closing);\n}\nfunction delimitedStrategy(context, align, units, closing, closedAt) {\n    let after = context.textAfter, space = after.match(/^\\s*/)[0].length;\n    let closed = closing && after.slice(space, space + closing.length) == closing || closedAt == context.pos + space;\n    let aligned = align ? bracketedAligned(context) : null;\n    if (aligned)\n        return closed ? context.column(aligned.from) : context.column(aligned.to);\n    return context.baseIndent + (closed ? 0 : context.unit * units);\n}\n/**\nAn indentation strategy that aligns a node's content to its base\nindentation.\n*/\nconst flatIndent = (context) => context.baseIndent;\n/**\nCreates an indentation strategy that, by default, indents\ncontinued lines one unit more than the node's base indentation.\nYou can provide `except` to prevent indentation of lines that\nmatch a pattern (for example `/^else\\b/` in `if`/`else`\nconstructs), and you can change the amount of units used with the\n`units` option.\n*/\nfunction continuedIndent({ except, units = 1 } = {}) {\n    return (context) => {\n        let matchExcept = except && except.test(context.textAfter);\n        return context.baseIndent + (matchExcept ? 0 : units * context.unit);\n    };\n}\nconst DontIndentBeyond = 200;\n/**\nEnables reindentation on input. When a language defines an\n`indentOnInput` field in its [language\ndata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt), which must hold a regular\nexpression, the line at the cursor will be reindented whenever new\ntext is typed and the input from the start of the line up to the\ncursor matches that regexp.\n\nTo avoid unneccesary reindents, it is recommended to start the\nregexp with `^` (usually followed by `\\s*`), and end it with `$`.\nFor example, `/^\\s*\\}$/` will reindent when a closing brace is\nadded at the start of a line.\n*/\nfunction indentOnInput() {\n    return EditorState.transactionFilter.of(tr => {\n        if (!tr.docChanged || tr.annotation(Transaction.userEvent) != \"input\")\n            return tr;\n        let rules = tr.startState.languageDataAt(\"indentOnInput\", tr.startState.selection.main.head);\n        if (!rules.length)\n            return tr;\n        let doc = tr.newDoc, { head } = tr.newSelection.main, line = doc.lineAt(head);\n        if (head > line.from + DontIndentBeyond)\n            return tr;\n        let lineStart = doc.sliceString(line.from, head);\n        if (!rules.some(r => r.test(lineStart)))\n            return tr;\n        let { state } = tr, last = -1, changes = [];\n        for (let { head } of state.selection.ranges) {\n            let line = state.doc.lineAt(head);\n            if (line.from == last)\n                continue;\n            last = line.from;\n            let indent = getIndentation(state, line.from);\n            if (indent == null)\n                continue;\n            let cur = /^\\s*/.exec(line.text)[0];\n            let norm = indentString(state, indent);\n            if (cur != norm)\n                changes.push({ from: line.from, to: line.from + cur.length, insert: norm });\n        }\n        return changes.length ? [tr, { changes }] : tr;\n    });\n}\n\n/**\nA facet that registers a code folding service. When called with\nthe extent of a line, such a function should return a foldable\nrange that starts on that line (but continues beyond it), if one\ncan be found.\n*/\nconst foldService = /*@__PURE__*/Facet.define();\n/**\nThis node prop is used to associate folding information with\nsyntax node types. Given a syntax node, it should check whether\nthat tree is foldable and return the range that can be collapsed\nwhen it is.\n*/\nconst foldNodeProp = /*@__PURE__*/new NodeProp();\n/**\n[Fold](https://codemirror.net/6/docs/ref/#language.foldNodeProp) function that folds everything but\nthe first and the last child of a syntax node. Useful for nodes\nthat start and end with delimiters.\n*/\nfunction foldInside(node) {\n    let first = node.firstChild, last = node.lastChild;\n    return first && first.to < last.from ? { from: first.to, to: last.type.isError ? node.to : last.from } : null;\n}\nfunction syntaxFolding(state, start, end) {\n    let tree = syntaxTree(state);\n    if (tree.length == 0)\n        return null;\n    let inner = tree.resolve(end);\n    let found = null;\n    for (let cur = inner; cur; cur = cur.parent) {\n        if (cur.to <= end || cur.from > end)\n            continue;\n        if (found && cur.from < start)\n            break;\n        let prop = cur.type.prop(foldNodeProp);\n        if (prop) {\n            let value = prop(cur, state);\n            if (value && value.from <= end && value.from >= start && value.to > end)\n                found = value;\n        }\n    }\n    return found;\n}\n/**\nCheck whether the given line is foldable. First asks any fold\nservices registered through\n[`foldService`](https://codemirror.net/6/docs/ref/#language.foldService), and if none of them return\na result, tries to query the [fold node\nprop](https://codemirror.net/6/docs/ref/#language.foldNodeProp) of syntax nodes that cover the end\nof the line.\n*/\nfunction foldable(state, lineStart, lineEnd) {\n    for (let service of state.facet(foldService)) {\n        let result = service(state, lineStart, lineEnd);\n        if (result)\n            return result;\n    }\n    return syntaxFolding(state, lineStart, lineEnd);\n}\n\nexport { EditorParseContext, IndentContext, Language, LanguageDescription, LanguageSupport, LezerLanguage, TreeIndentContext, continuedIndent, defineLanguageFacet, delimitedIndent, ensureSyntaxTree, flatIndent, foldInside, foldNodeProp, foldService, foldable, getIndentUnit, getIndentation, indentNodeProp, indentOnInput, indentService, indentString, indentUnit, language, languageDataProp, syntaxTree };\n","import { EditorView, Decoration, ViewPlugin, logException, WidgetType } from '@codemirror/view';\nimport { StateEffect, StateField, Facet } from '@codemirror/state';\nimport { hoverTooltip } from '@codemirror/tooltip';\nimport { showPanel, getPanel } from '@codemirror/panel';\nimport elt from 'crelt';\n\nclass SelectedDiagnostic {\n    constructor(from, to, diagnostic) {\n        this.from = from;\n        this.to = to;\n        this.diagnostic = diagnostic;\n    }\n}\nclass LintState {\n    constructor(diagnostics, panel, selected) {\n        this.diagnostics = diagnostics;\n        this.panel = panel;\n        this.selected = selected;\n    }\n    static init(diagnostics, panel) {\n        let ranges = Decoration.set(diagnostics.map((d) => {\n            return d.from < d.to\n                ? Decoration.mark({\n                    attributes: { class: \"cm-lintRange cm-lintRange-\" + d.severity },\n                    diagnostic: d\n                }).range(d.from, d.to)\n                : Decoration.widget({\n                    widget: new DiagnosticWidget(d),\n                    diagnostic: d\n                }).range(d.from);\n        }), true);\n        return new LintState(ranges, panel, findDiagnostic(ranges));\n    }\n}\nfunction findDiagnostic(diagnostics, diagnostic = null, after = 0) {\n    let found = null;\n    diagnostics.between(after, 1e9, (from, to, { spec }) => {\n        if (diagnostic && spec.diagnostic != diagnostic)\n            return;\n        found = new SelectedDiagnostic(from, to, spec.diagnostic);\n        return false;\n    });\n    return found;\n}\nfunction maybeEnableLint(state, effects, getState) {\n    return state.field(lintState, false) ? effects : effects.concat(StateEffect.appendConfig.of([\n        lintState.init(getState),\n        EditorView.decorations.compute([lintState], state => {\n            let { selected, panel } = state.field(lintState);\n            return !selected || !panel || selected.from == selected.to ? Decoration.none : Decoration.set([\n                activeMark.range(selected.from, selected.to)\n            ]);\n        }),\n        hoverTooltip(lintTooltip),\n        baseTheme\n    ]));\n}\n/**\nReturns a transaction spec which updates the current set of\ndiagnostics.\n*/\nfunction setDiagnostics(state, diagnostics) {\n    return {\n        effects: maybeEnableLint(state, [setDiagnosticsEffect.of(diagnostics)], () => LintState.init(diagnostics, null))\n    };\n}\nconst setDiagnosticsEffect = /*@__PURE__*/StateEffect.define();\nconst togglePanel = /*@__PURE__*/StateEffect.define();\nconst movePanelSelection = /*@__PURE__*/StateEffect.define();\nconst lintState = /*@__PURE__*/StateField.define({\n    create() {\n        return new LintState(Decoration.none, null, null);\n    },\n    update(value, tr) {\n        if (tr.docChanged) {\n            let mapped = value.diagnostics.map(tr.changes), selected = null;\n            if (value.selected) {\n                let selPos = tr.changes.mapPos(value.selected.from, 1);\n                selected = findDiagnostic(mapped, value.selected.diagnostic, selPos) || findDiagnostic(mapped, null, selPos);\n            }\n            value = new LintState(mapped, value.panel, selected);\n        }\n        for (let effect of tr.effects) {\n            if (effect.is(setDiagnosticsEffect)) {\n                value = LintState.init(effect.value, value.panel);\n            }\n            else if (effect.is(togglePanel)) {\n                value = new LintState(value.diagnostics, effect.value ? LintPanel.open : null, value.selected);\n            }\n            else if (effect.is(movePanelSelection)) {\n                value = new LintState(value.diagnostics, value.panel, effect.value);\n            }\n        }\n        return value;\n    },\n    provide: f => [showPanel.from(f, val => val.panel),\n        EditorView.decorations.from(f, s => s.diagnostics)]\n});\nconst activeMark = /*@__PURE__*/Decoration.mark({ class: \"cm-lintRange cm-lintRange-active\" });\nfunction lintTooltip(view, pos, side) {\n    let { diagnostics } = view.state.field(lintState);\n    let found = [], stackStart = 2e8, stackEnd = 0;\n    diagnostics.between(pos - (side < 0 ? 1 : 0), pos + (side > 0 ? 1 : 0), (from, to, { spec }) => {\n        if (pos >= from && pos <= to &&\n            (from == to || ((pos > from || side > 0) && (pos < to || side < 0)))) {\n            found.push(spec.diagnostic);\n            stackStart = Math.min(from, stackStart);\n            stackEnd = Math.max(to, stackEnd);\n        }\n    });\n    if (!found.length)\n        return null;\n    return {\n        pos: stackStart,\n        end: stackEnd,\n        above: view.state.doc.lineAt(stackStart).to < stackEnd,\n        create() {\n            return { dom: elt(\"ul\", { class: \"cm-tooltip-lint\" }, found.map(d => renderDiagnostic(view, d, false))) };\n        }\n    };\n}\n/**\nCommand to open and focus the lint panel.\n*/\nconst openLintPanel = (view) => {\n    let field = view.state.field(lintState, false);\n    if (!field || !field.panel)\n        view.dispatch({ effects: maybeEnableLint(view.state, [togglePanel.of(true)], () => LintState.init([], LintPanel.open)) });\n    let panel = getPanel(view, LintPanel.open);\n    if (panel)\n        panel.dom.querySelector(\".cm-panel-lint ul\").focus();\n    return true;\n};\n/**\nCommand to close the lint panel, when open.\n*/\nconst closeLintPanel = (view) => {\n    let field = view.state.field(lintState, false);\n    if (!field || !field.panel)\n        return false;\n    view.dispatch({ effects: togglePanel.of(false) });\n    return true;\n};\n/**\nMove the selection to the next diagnostic.\n*/\nconst nextDiagnostic = (view) => {\n    let field = view.state.field(lintState, false);\n    if (!field)\n        return false;\n    let sel = view.state.selection.main, next = field.diagnostics.iter(sel.to + 1);\n    if (!next.value) {\n        next = field.diagnostics.iter(0);\n        if (!next.value || next.from == sel.from && next.to == sel.to)\n            return false;\n    }\n    view.dispatch({ selection: { anchor: next.from, head: next.to }, scrollIntoView: true });\n    return true;\n};\n/**\nA set of default key bindings for the lint functionality.\n\n- Ctrl-Shift-m (Cmd-Shift-m on macOS): [`openLintPanel`](https://codemirror.net/6/docs/ref/#lint.openLintPanel)\n- F8: [`nextDiagnostic`](https://codemirror.net/6/docs/ref/#lint.nextDiagnostic)\n*/\nconst lintKeymap = [\n    { key: \"Mod-Shift-m\", run: openLintPanel },\n    { key: \"F8\", run: nextDiagnostic }\n];\nconst lintPlugin = /*@__PURE__*/ViewPlugin.fromClass(class {\n    constructor(view) {\n        this.view = view;\n        this.timeout = -1;\n        this.set = true;\n        let { delay } = view.state.facet(lintSource);\n        this.lintTime = Date.now() + delay;\n        this.run = this.run.bind(this);\n        this.timeout = setTimeout(this.run, delay);\n    }\n    run() {\n        let now = Date.now();\n        if (now < this.lintTime - 10) {\n            setTimeout(this.run, this.lintTime - now);\n        }\n        else {\n            this.set = false;\n            let { state } = this.view, { sources } = state.facet(lintSource);\n            Promise.all(sources.map(source => Promise.resolve(source(this.view)))).then(annotations => {\n                var _a, _b;\n                let all = annotations.reduce((a, b) => a.concat(b));\n                if (this.view.state.doc == state.doc &&\n                    (all.length || ((_b = (_a = this.view.state.field(lintState, false)) === null || _a === void 0 ? void 0 : _a.diagnostics) === null || _b === void 0 ? void 0 : _b.size)))\n                    this.view.dispatch(setDiagnostics(this.view.state, all));\n            }, error => { logException(this.view.state, error); });\n        }\n    }\n    update(update) {\n        if (update.docChanged) {\n            let { delay } = update.state.facet(lintSource);\n            this.lintTime = Date.now() + delay;\n            if (!this.set) {\n                this.set = true;\n                this.timeout = setTimeout(this.run, delay);\n            }\n        }\n    }\n    force() {\n        if (this.set) {\n            this.lintTime = Date.now();\n            this.run();\n        }\n    }\n    destroy() {\n        clearTimeout(this.timeout);\n    }\n});\nconst lintSource = /*@__PURE__*/Facet.define({\n    combine(input) {\n        return { sources: input.map(i => i.source), delay: input.length ? Math.max(...input.map(i => i.delay)) : 750 };\n    },\n    enables: lintPlugin\n});\n/**\nGiven a diagnostic source, this function returns an extension that\nenables linting with that source. It will be called whenever the\neditor is idle (after its content changed).\n*/\nfunction linter(source, config = {}) {\n    var _a;\n    return lintSource.of({ source, delay: (_a = config.delay) !== null && _a !== void 0 ? _a : 750 });\n}\n/**\nForces any linters [configured](https://codemirror.net/6/docs/ref/#lint.linter) to run when the\neditor is idle to run right away.\n*/\nfunction forceLinting(view) {\n    let plugin = view.plugin(lintPlugin);\n    if (plugin)\n        plugin.force();\n}\nfunction assignKeys(actions) {\n    let assigned = [];\n    if (actions)\n        actions: for (let { name } of actions) {\n            for (let i = 0; i < name.length; i++) {\n                let ch = name[i];\n                if (/[a-zA-Z]/.test(ch) && !assigned.some(c => c.toLowerCase() == ch.toLowerCase())) {\n                    assigned.push(ch);\n                    continue actions;\n                }\n            }\n            assigned.push(\"\");\n        }\n    return assigned;\n}\nfunction renderDiagnostic(view, diagnostic, inPanel) {\n    var _a;\n    let keys = inPanel ? assignKeys(diagnostic.actions) : [];\n    return elt(\"li\", { class: \"cm-diagnostic cm-diagnostic-\" + diagnostic.severity }, elt(\"span\", { class: \"cm-diagnosticText\" }, diagnostic.message), (_a = diagnostic.actions) === null || _a === void 0 ? void 0 : _a.map((action, i) => {\n        let click = (e) => {\n            e.preventDefault();\n            let found = findDiagnostic(view.state.field(lintState).diagnostics, diagnostic);\n            if (found)\n                action.apply(view, found.from, found.to);\n        };\n        let { name } = action, keyIndex = keys[i] ? name.indexOf(keys[i]) : -1;\n        let nameElt = keyIndex < 0 ? name : [name.slice(0, keyIndex),\n            elt(\"u\", name.slice(keyIndex, keyIndex + 1)),\n            name.slice(keyIndex + 1)];\n        return elt(\"button\", {\n            class: \"cm-diagnosticAction\",\n            onclick: click,\n            onmousedown: click,\n            \"aria-label\": ` Action: ${name}${keyIndex < 0 ? \"\" : ` (access key \"${keys[i]})\"`}.`\n        }, nameElt);\n    }), diagnostic.source && elt(\"div\", { class: \"cm-diagnosticSource\" }, diagnostic.source));\n}\nclass DiagnosticWidget extends WidgetType {\n    constructor(diagnostic) {\n        super();\n        this.diagnostic = diagnostic;\n    }\n    eq(other) { return other.diagnostic == this.diagnostic; }\n    toDOM() {\n        return elt(\"span\", { class: \"cm-lintPoint cm-lintPoint-\" + this.diagnostic.severity });\n    }\n}\nclass PanelItem {\n    constructor(view, diagnostic) {\n        this.diagnostic = diagnostic;\n        this.id = \"item_\" + Math.floor(Math.random() * 0xffffffff).toString(16);\n        this.dom = renderDiagnostic(view, diagnostic, true);\n        this.dom.id = this.id;\n        this.dom.setAttribute(\"role\", \"option\");\n    }\n}\nclass LintPanel {\n    constructor(view) {\n        this.view = view;\n        this.items = [];\n        let onkeydown = (event) => {\n            if (event.keyCode == 27) { // Escape\n                closeLintPanel(this.view);\n                this.view.focus();\n            }\n            else if (event.keyCode == 38 || event.keyCode == 33) { // ArrowUp, PageUp\n                this.moveSelection((this.selectedIndex - 1 + this.items.length) % this.items.length);\n            }\n            else if (event.keyCode == 40 || event.keyCode == 34) { // ArrowDown, PageDown\n                this.moveSelection((this.selectedIndex + 1) % this.items.length);\n            }\n            else if (event.keyCode == 36) { // Home\n                this.moveSelection(0);\n            }\n            else if (event.keyCode == 35) { // End\n                this.moveSelection(this.items.length - 1);\n            }\n            else if (event.keyCode == 13) { // Enter\n                this.view.focus();\n            }\n            else if (event.keyCode >= 65 && event.keyCode <= 90 && this.selectedIndex >= 0) { // A-Z\n                let { diagnostic } = this.items[this.selectedIndex], keys = assignKeys(diagnostic.actions);\n                for (let i = 0; i < keys.length; i++)\n                    if (keys[i].toUpperCase().charCodeAt(0) == event.keyCode) {\n                        let found = findDiagnostic(this.view.state.field(lintState).diagnostics, diagnostic);\n                        if (found)\n                            diagnostic.actions[i].apply(view, found.from, found.to);\n                    }\n            }\n            else {\n                return;\n            }\n            event.preventDefault();\n        };\n        let onclick = (event) => {\n            for (let i = 0; i < this.items.length; i++) {\n                if (this.items[i].dom.contains(event.target))\n                    this.moveSelection(i);\n            }\n        };\n        this.list = elt(\"ul\", {\n            tabIndex: 0,\n            role: \"listbox\",\n            \"aria-label\": this.view.state.phrase(\"Diagnostics\"),\n            onkeydown,\n            onclick\n        });\n        this.dom = elt(\"div\", { class: \"cm-panel-lint\" }, this.list, elt(\"button\", {\n            name: \"close\",\n            \"aria-label\": this.view.state.phrase(\"close\"),\n            onclick: () => closeLintPanel(this.view)\n        }, \"×\"));\n        this.update();\n    }\n    get selectedIndex() {\n        let selected = this.view.state.field(lintState).selected;\n        if (!selected)\n            return -1;\n        for (let i = 0; i < this.items.length; i++)\n            if (this.items[i].diagnostic == selected.diagnostic)\n                return i;\n        return -1;\n    }\n    update() {\n        let { diagnostics, selected } = this.view.state.field(lintState);\n        let i = 0, needsSync = false, newSelectedItem = null;\n        diagnostics.between(0, this.view.state.doc.length, (_start, _end, { spec }) => {\n            let found = -1, item;\n            for (let j = i; j < this.items.length; j++)\n                if (this.items[j].diagnostic == spec.diagnostic) {\n                    found = j;\n                    break;\n                }\n            if (found < 0) {\n                item = new PanelItem(this.view, spec.diagnostic);\n                this.items.splice(i, 0, item);\n                needsSync = true;\n            }\n            else {\n                item = this.items[found];\n                if (found > i) {\n                    this.items.splice(i, found - i);\n                    needsSync = true;\n                }\n            }\n            if (selected && item.diagnostic == selected.diagnostic) {\n                if (!item.dom.hasAttribute(\"aria-selected\")) {\n                    item.dom.setAttribute(\"aria-selected\", \"true\");\n                    newSelectedItem = item;\n                }\n            }\n            else if (item.dom.hasAttribute(\"aria-selected\")) {\n                item.dom.removeAttribute(\"aria-selected\");\n            }\n            i++;\n        });\n        while (i < this.items.length && !(this.items.length == 1 && this.items[0].diagnostic.from < 0)) {\n            needsSync = true;\n            this.items.pop();\n        }\n        if (this.items.length == 0) {\n            this.items.push(new PanelItem(this.view, {\n                from: -1, to: -1,\n                severity: \"info\",\n                message: this.view.state.phrase(\"No diagnostics\")\n            }));\n            needsSync = true;\n        }\n        if (newSelectedItem) {\n            this.list.setAttribute(\"aria-activedescendant\", newSelectedItem.id);\n            this.view.requestMeasure({\n                key: this,\n                read: () => ({ sel: newSelectedItem.dom.getBoundingClientRect(), panel: this.list.getBoundingClientRect() }),\n                write: ({ sel, panel }) => {\n                    if (sel.top < panel.top)\n                        this.list.scrollTop -= panel.top - sel.top;\n                    else if (sel.bottom > panel.bottom)\n                        this.list.scrollTop += sel.bottom - panel.bottom;\n                }\n            });\n        }\n        else if (this.selectedIndex < 0) {\n            this.list.removeAttribute(\"aria-activedescendant\");\n        }\n        if (needsSync)\n            this.sync();\n    }\n    sync() {\n        let domPos = this.list.firstChild;\n        function rm() {\n            let prev = domPos;\n            domPos = prev.nextSibling;\n            prev.remove();\n        }\n        for (let item of this.items) {\n            if (item.dom.parentNode == this.list) {\n                while (domPos != item.dom)\n                    rm();\n                domPos = item.dom.nextSibling;\n            }\n            else {\n                this.list.insertBefore(item.dom, domPos);\n            }\n        }\n        while (domPos)\n            rm();\n    }\n    moveSelection(selectedIndex) {\n        if (this.selectedIndex < 0)\n            return;\n        let field = this.view.state.field(lintState);\n        let selection = findDiagnostic(field.diagnostics, this.items[selectedIndex].diagnostic);\n        if (!selection)\n            return;\n        this.view.dispatch({\n            selection: { anchor: selection.from, head: selection.to },\n            scrollIntoView: true,\n            effects: movePanelSelection.of(selection)\n        });\n    }\n    static open(view) { return new LintPanel(view); }\n}\nfunction underline(color) {\n    if (typeof btoa != \"function\")\n        return \"none\";\n    let svg = `<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"6\" height=\"3\">\n    <path d=\"m0 3 l2 -2 l1 0 l2 2 l1 0\" stroke=\"${color}\" fill=\"none\" stroke-width=\".7\"/>\n  </svg>`;\n    return `url('data:image/svg+xml;base64,${btoa(svg)}')`;\n}\nconst baseTheme = /*@__PURE__*/EditorView.baseTheme({\n    \".cm-diagnostic\": {\n        padding: \"3px 6px 3px 8px\",\n        marginLeft: \"-1px\",\n        display: \"block\",\n        whiteSpace: \"pre-wrap\"\n    },\n    \".cm-diagnostic-error\": { borderLeft: \"5px solid #d11\" },\n    \".cm-diagnostic-warning\": { borderLeft: \"5px solid orange\" },\n    \".cm-diagnostic-info\": { borderLeft: \"5px solid #999\" },\n    \".cm-diagnosticAction\": {\n        font: \"inherit\",\n        border: \"none\",\n        padding: \"2px 4px\",\n        backgroundColor: \"#444\",\n        color: \"white\",\n        borderRadius: \"3px\",\n        marginLeft: \"8px\"\n    },\n    \".cm-diagnosticSource\": {\n        fontSize: \"70%\",\n        opacity: .7\n    },\n    \".cm-lintRange\": {\n        backgroundPosition: \"left bottom\",\n        backgroundRepeat: \"repeat-x\"\n    },\n    \".cm-lintRange-error\": { backgroundImage: /*@__PURE__*/underline(\"#d11\") },\n    \".cm-lintRange-warning\": { backgroundImage: /*@__PURE__*/underline(\"orange\") },\n    \".cm-lintRange-info\": { backgroundImage: /*@__PURE__*/underline(\"#999\") },\n    \".cm-lintRange-active\": { backgroundColor: \"#ffdd9980\" },\n    \".cm-tooltip-lint\": {\n        padding: 0,\n        margin: 0\n    },\n    \".cm-lintPoint\": {\n        position: \"relative\",\n        \"&:after\": {\n            content: '\"\"',\n            position: \"absolute\",\n            bottom: 0,\n            left: \"-2px\",\n            borderLeft: \"3px solid transparent\",\n            borderRight: \"3px solid transparent\",\n            borderBottom: \"4px solid #d11\"\n        }\n    },\n    \".cm-lintPoint-warning\": {\n        \"&:after\": { borderBottomColor: \"orange\" }\n    },\n    \".cm-lintPoint-info\": {\n        \"&:after\": { borderBottomColor: \"#999\" }\n    },\n    \".cm-panel.cm-panel-lint\": {\n        position: \"relative\",\n        \"& ul\": {\n            maxHeight: \"100px\",\n            overflowY: \"auto\",\n            \"& [aria-selected]\": {\n                backgroundColor: \"#ddd\",\n                \"& u\": { textDecoration: \"underline\" }\n            },\n            \"&:focus [aria-selected]\": {\n                background_fallback: \"#bdf\",\n                backgroundColor: \"Highlight\",\n                color_fallback: \"white\",\n                color: \"HighlightText\"\n            },\n            \"& u\": { textDecoration: \"none\" },\n            padding: 0,\n            margin: 0\n        },\n        \"& [name=close]\": {\n            position: \"absolute\",\n            top: \"0\",\n            right: \"2px\",\n            background: \"inherit\",\n            border: \"none\",\n            font: \"inherit\",\n            padding: 0,\n            margin: 0\n        }\n    }\n});\n\nexport { closeLintPanel, forceLinting, lintKeymap, linter, nextDiagnostic, openLintPanel, setDiagnostics };\n","import { Facet, combineConfig, StateField } from '@codemirror/state';\nimport { syntaxTree } from '@codemirror/language';\nimport { EditorView, Decoration } from '@codemirror/view';\nimport { NodeProp } from 'lezer-tree';\n\nconst baseTheme = EditorView.baseTheme({\n    \".cm-matchingBracket\": { color: \"#0b0\" },\n    \".cm-nonmatchingBracket\": { color: \"#a22\" }\n});\nconst DefaultScanDist = 10000, DefaultBrackets = \"()[]{}\";\nconst bracketMatchingConfig = Facet.define({\n    combine(configs) {\n        return combineConfig(configs, {\n            afterCursor: true,\n            brackets: DefaultBrackets,\n            maxScanDistance: DefaultScanDist\n        });\n    }\n});\nconst matchingMark = Decoration.mark({ class: \"cm-matchingBracket\" }), nonmatchingMark = Decoration.mark({ class: \"cm-nonmatchingBracket\" });\nconst bracketMatchingState = StateField.define({\n    create() { return Decoration.none; },\n    update(deco, tr) {\n        if (!tr.docChanged && !tr.selection)\n            return deco;\n        let decorations = [];\n        let config = tr.state.facet(bracketMatchingConfig);\n        for (let range of tr.state.selection.ranges) {\n            if (!range.empty)\n                continue;\n            let match = matchBrackets(tr.state, range.head, -1, config)\n                || (range.head > 0 && matchBrackets(tr.state, range.head - 1, 1, config))\n                || (config.afterCursor &&\n                    (matchBrackets(tr.state, range.head, 1, config) ||\n                        (range.head < tr.state.doc.length && matchBrackets(tr.state, range.head + 1, -1, config))));\n            if (!match)\n                continue;\n            let mark = match.matched ? matchingMark : nonmatchingMark;\n            decorations.push(mark.range(match.start.from, match.start.to));\n            if (match.end)\n                decorations.push(mark.range(match.end.from, match.end.to));\n        }\n        return Decoration.set(decorations, true);\n    },\n    provide: f => EditorView.decorations.from(f)\n});\nconst bracketMatchingUnique = [\n    bracketMatchingState,\n    baseTheme\n];\n/// Create an extension that enables bracket matching. Whenever the\n/// cursor is next to a bracket, that bracket and the one it matches\n/// are highlighted. Or, when no matching bracket is found, another\n/// highlighting style is used to indicate this.\nfunction bracketMatching(config = {}) {\n    return [bracketMatchingConfig.of(config), bracketMatchingUnique];\n}\nfunction matchingNodes(node, dir, brackets) {\n    let byProp = node.prop(dir < 0 ? NodeProp.openedBy : NodeProp.closedBy);\n    if (byProp)\n        return byProp;\n    if (node.name.length == 1) {\n        let index = brackets.indexOf(node.name);\n        if (index > -1 && index % 2 == (dir < 0 ? 1 : 0))\n            return [brackets[index + dir]];\n    }\n    return null;\n}\n/// Find the matching bracket for the token at `pos`, scanning\n/// direction `dir`. Only the `brackets` and `maxScanDistance`\n/// properties are used from `config`, if given. Returns null if no\n/// bracket was found at `pos`, or a match result otherwise.\nfunction matchBrackets(state, pos, dir, config = {}) {\n    let maxScanDistance = config.maxScanDistance || DefaultScanDist, brackets = config.brackets || DefaultBrackets;\n    let tree = syntaxTree(state), sub = tree.resolve(pos, dir), matches;\n    if (matches = matchingNodes(sub.type, dir, brackets))\n        return matchMarkedBrackets(state, pos, dir, sub, matches, brackets);\n    else\n        return matchPlainBrackets(state, pos, dir, tree, sub.type, maxScanDistance, brackets);\n}\nfunction matchMarkedBrackets(_state, _pos, dir, token, matching, brackets) {\n    let parent = token.parent, firstToken = { from: token.from, to: token.to };\n    let depth = 0, cursor = parent === null || parent === void 0 ? void 0 : parent.cursor;\n    if (cursor && (dir < 0 ? cursor.childBefore(token.from) : cursor.childAfter(token.to)))\n        do {\n            if (dir < 0 ? cursor.to <= token.from : cursor.from >= token.to) {\n                if (depth == 0 && matching.indexOf(cursor.type.name) > -1) {\n                    return { start: firstToken, end: { from: cursor.from, to: cursor.to }, matched: true };\n                }\n                else if (matchingNodes(cursor.type, dir, brackets)) {\n                    depth++;\n                }\n                else if (matchingNodes(cursor.type, -dir, brackets)) {\n                    depth--;\n                    if (depth == 0)\n                        return { start: firstToken, end: { from: cursor.from, to: cursor.to }, matched: false };\n                }\n            }\n        } while (dir < 0 ? cursor.prevSibling() : cursor.nextSibling());\n    return { start: firstToken, matched: false };\n}\nfunction matchPlainBrackets(state, pos, dir, tree, tokenType, maxScanDistance, brackets) {\n    let startCh = dir < 0 ? state.sliceDoc(pos - 1, pos) : state.sliceDoc(pos, pos + 1);\n    let bracket = brackets.indexOf(startCh);\n    if (bracket < 0 || (bracket % 2 == 0) != (dir > 0))\n        return null;\n    let startToken = { from: dir < 0 ? pos - 1 : pos, to: dir > 0 ? pos + 1 : pos };\n    let iter = state.doc.iterRange(pos, dir > 0 ? state.doc.length : 0), depth = 0;\n    for (let distance = 0; !(iter.next()).done && distance <= maxScanDistance;) {\n        let text = iter.value;\n        if (dir < 0)\n            distance += text.length;\n        let basePos = pos + distance * dir;\n        for (let pos = dir > 0 ? 0 : text.length - 1, end = dir > 0 ? text.length : -1; pos != end; pos += dir) {\n            let found = brackets.indexOf(text[pos]);\n            if (found < 0 || tree.resolve(basePos + pos, 1).type != tokenType)\n                continue;\n            if ((found % 2 == 0) == (dir > 0)) {\n                depth++;\n            }\n            else if (depth == 1) { // Closing\n                return { start: startToken, end: { from: basePos + pos, to: basePos + pos + 1 }, matched: (found >> 1) == (bracket >> 1) };\n            }\n            else {\n                depth--;\n            }\n        }\n        if (dir > 0)\n            distance += text.length;\n    }\n    return iter.done ? { start: startToken, matched: false } : null;\n}\n\nexport { bracketMatching, matchBrackets };\n"],"names":[],"sourceRoot":""}