add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/js/semantic_tree/semantic.d.ts

@@ -0,0 +1,10 @@
+import { SemanticFont, SemanticRole, SemanticType } from './semantic_meaning.js';
+import { SemanticTree } from './semantic_tree.js';
+export type Font = SemanticFont;
+export type Role = SemanticRole;
+export type Type = SemanticType;
+type Attr = Font | Role | Type;
+export { Attr };
+export declare function xmlTree(mml: Element): Element;
+export declare function getTree(mml: Element): SemanticTree;
+export declare function getTreeFromString(expr: string): SemanticTree;

node_modules/speech-rule-engine/js/semantic_tree/semantic.js

@@ -0,0 +1,17 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.xmlTree = xmlTree;
+exports.getTree = getTree;
+exports.getTreeFromString = getTreeFromString;
+const DomUtil = require("../common/dom_util.js");
+const semantic_tree_js_1 = require("./semantic_tree.js");
+function xmlTree(mml) {
+    return getTree(mml).xml();
+}
+function getTree(mml) {
+    return new semantic_tree_js_1.SemanticTree(mml);
+}
+function getTreeFromString(expr) {
+    const mml = DomUtil.parseInput(expr);
+    return getTree(mml);
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_annotations.d.ts

@@ -0,0 +1,8 @@
+import { SemanticAnnotator, SemanticVisitor } from './semantic_annotator.js';
+import { SemanticNode } from './semantic_node.js';
+export declare const annotators: Map<string, SemanticAnnotator>;
+export declare const visitors: Map<string, SemanticVisitor>;
+export declare function register(annotator: SemanticAnnotator | SemanticVisitor): void;
+export declare function activate(domain: string, name: string): void;
+export declare function deactivate(domain: string, name: string): void;
+export declare function annotate(node: SemanticNode): void;

node_modules/speech-rule-engine/js/semantic_tree/semantic_annotations.js

@@ -0,0 +1,42 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.visitors = exports.annotators = void 0;
+exports.register = register;
+exports.activate = activate;
+exports.deactivate = deactivate;
+exports.annotate = annotate;
+const semantic_annotator_js_1 = require("./semantic_annotator.js");
+exports.annotators = new Map();
+exports.visitors = new Map();
+function register(annotator) {
+    const name = annotator.domain + ':' + annotator.name;
+    annotator instanceof semantic_annotator_js_1.SemanticAnnotator
+        ? exports.annotators.set(name, annotator)
+        : exports.visitors.set(name, annotator);
+}
+function activate(domain, name) {
+    const key = domain + ':' + name;
+    const annotator = exports.annotators.get(key) || exports.visitors.get(key);
+    if (annotator) {
+        annotator.active = true;
+    }
+}
+function deactivate(domain, name) {
+    const key = domain + ':' + name;
+    const annotator = exports.annotators.get(key) || exports.visitors.get(key);
+    if (annotator) {
+        annotator.active = false;
+    }
+}
+function annotate(node) {
+    for (const annotator of exports.annotators.values()) {
+        if (annotator.active) {
+            annotator.annotate(node);
+        }
+    }
+    for (const visitor of exports.visitors.values()) {
+        if (visitor.active) {
+            visitor.visit(node, Object.assign({}, visitor.def));
+        }
+    }
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_annotator.d.ts

@@ -0,0 +1,28 @@
+import { SemanticNode } from './semantic_node.js';
+export declare class SemanticAnnotator {
+    domain: string;
+    name: string;
+    func: (p1: SemanticNode) => any;
+    active: boolean;
+    constructor(domain: string, name: string, func: (p1: SemanticNode) => any);
+    annotate(node: SemanticNode): void;
+}
+export declare class SemanticVisitor {
+    domain: string;
+    name: string;
+    func: (p1: SemanticNode, p2: {
+        [key: string]: any;
+    }) => any;
+    def: {
+        [key: string]: any;
+    };
+    active: boolean;
+    constructor(domain: string, name: string, func: (p1: SemanticNode, p2: {
+        [key: string]: any;
+    }) => any, def?: {
+        [key: string]: any;
+    });
+    visit(node: SemanticNode, info: {
+        [key: string]: any;
+    }): any;
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_annotator.js

@@ -0,0 +1,38 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticVisitor = exports.SemanticAnnotator = void 0;
+class SemanticAnnotator {
+    constructor(domain, name, func) {
+        this.domain = domain;
+        this.name = name;
+        this.func = func;
+        this.active = false;
+    }
+    annotate(node) {
+        node.childNodes.forEach(this.annotate.bind(this));
+        node.contentNodes.forEach(this.annotate.bind(this));
+        node.addAnnotation(this.domain, this.func(node));
+    }
+}
+exports.SemanticAnnotator = SemanticAnnotator;
+class SemanticVisitor {
+    constructor(domain, name, func, def = {}) {
+        this.domain = domain;
+        this.name = name;
+        this.func = func;
+        this.def = def;
+        this.active = false;
+    }
+    visit(node, info) {
+        let result = this.func(node, info);
+        node.addAnnotation(this.domain, result[0]);
+        for (let i = 0, child; (child = node.childNodes[i]); i++) {
+            result = this.visit(child, result[1]);
+        }
+        for (let i = 0, content; (content = node.contentNodes[i]); i++) {
+            result = this.visit(content, result[1]);
+        }
+        return result;
+    }
+}
+exports.SemanticVisitor = SemanticVisitor;

node_modules/speech-rule-engine/js/semantic_tree/semantic_attr.d.ts

@@ -0,0 +1,27 @@
+import { SemanticMeaning, SemanticSecondary } from './semantic_meaning.js';
+export declare const NamedSymbol: {
+    functionApplication: string;
+    invisibleTimes: string;
+    invisibleComma: string;
+    invisiblePlus: string;
+};
+declare class meaningMap extends Map<string, SemanticMeaning> {
+    get(symbol: string): SemanticMeaning;
+}
+declare class secondaryMap extends Map<string, string> {
+    set(char: string, kind: SemanticSecondary, annotation?: string): this;
+    has(char: string, kind?: SemanticSecondary): boolean;
+    get(char: string, kind?: SemanticSecondary): string;
+    private secKey;
+}
+export declare const SemanticMap: {
+    Meaning: meaningMap;
+    Secondary: secondaryMap;
+    FencesHoriz: Map<any, any>;
+    FencesVert: Map<any, any>;
+    LatexCommands: Map<any, any>;
+};
+export declare function addFunctionSemantic(base: string, names: string[]): void;
+export declare function equal(meaning1: SemanticMeaning, meaning2: SemanticMeaning): boolean;
+export declare function isMatchingFence(open: string, close: string): boolean;
+export {};

node_modules/speech-rule-engine/js/semantic_tree/semantic_default.d.ts

@@ -0,0 +1,31 @@
+import { SemanticFont, SemanticMeaning } from './semantic_meaning.js';
+import { SemanticNode } from './semantic_node.js';
+export declare class SemanticDefault extends Map<string, SemanticMeaning> {
+    set(symbol: string, meaning: SemanticMeaning): this;
+    setNode(node: SemanticNode): void;
+    get(symbol: string, font?: SemanticFont): SemanticMeaning;
+    getNode(node: SemanticNode): SemanticMeaning;
+}
+declare abstract class SemanticCollator<T> extends Map<string, T[]> {
+    add(symbol: string, entry: T): void;
+    abstract addNode(node: SemanticNode): void;
+    get(symbol: string, font?: SemanticFont): T[];
+    getNode(node: SemanticNode): T[];
+    minimize(): void;
+    isMultiValued(): boolean;
+}
+export declare class SemanticNodeCollator extends SemanticCollator<SemanticNode> {
+    add(symbol: string, entry: SemanticNode): void;
+    addNode(node: SemanticNode): void;
+    toString(): string;
+    collateMeaning(): SemanticMeaningCollator;
+}
+export declare class SemanticMeaningCollator extends SemanticCollator<SemanticMeaning> {
+    add(symbol: string, entry: SemanticMeaning): void;
+    addNode(node: SemanticNode): void;
+    toString(): string;
+    reduce(): void;
+    default(): SemanticDefault;
+    newDefault(): SemanticDefault | null;
+}
+export {};

node_modules/speech-rule-engine/js/semantic_tree/semantic_default.js

@@ -0,0 +1,129 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticMeaningCollator = exports.SemanticNodeCollator = exports.SemanticDefault = void 0;
+const SemanticAttr = require("./semantic_attr.js");
+const semantic_ordering_js_1 = require("./semantic_ordering.js");
+function key(symbol, font) {
+    return symbol.match(/^.+:.+$/) || !font ? symbol : symbol + ':' + font;
+}
+class SemanticDefault extends Map {
+    set(symbol, meaning) {
+        super.set(key(symbol, meaning.font), meaning);
+        return this;
+    }
+    setNode(node) {
+        this.set(node.textContent, node.meaning());
+    }
+    get(symbol, font = null) {
+        return super.get(key(symbol, font));
+    }
+    getNode(node) {
+        return this.get(node.textContent, node.font);
+    }
+}
+exports.SemanticDefault = SemanticDefault;
+class SemanticCollator extends Map {
+    add(symbol, entry) {
+        const list = this.get(symbol);
+        if (list) {
+            list.push(entry);
+        }
+        else {
+            super.set(symbol, [entry]);
+        }
+    }
+    get(symbol, font = null) {
+        return super.get(key(symbol, font));
+    }
+    getNode(node) {
+        return this.get(node.textContent, node.font);
+    }
+    minimize() {
+        for (const [key, entry] of this) {
+            if (entry.length === 1) {
+                this.delete(key);
+            }
+        }
+    }
+    isMultiValued() {
+        for (const value of this.values()) {
+            if (value.length > 1) {
+                return true;
+            }
+        }
+        return false;
+    }
+}
+class SemanticNodeCollator extends SemanticCollator {
+    add(symbol, entry) {
+        super.add(key(symbol, entry.font), entry);
+    }
+    addNode(node) {
+        this.add(node.textContent, node);
+    }
+    toString() {
+        const outer = [];
+        for (const [key, nodes] of this) {
+            const length = Array(key.length + 3).join(' ');
+            const inner = nodes.map((node) => node.toString()).join('\n' + length);
+            outer.push(key + ': ' + inner);
+        }
+        return outer.join('\n');
+    }
+    collateMeaning() {
+        const collator = new SemanticMeaningCollator();
+        for (const [key, val] of this) {
+            collator.set(key, val.map((node) => node.meaning()));
+        }
+        return collator;
+    }
+}
+exports.SemanticNodeCollator = SemanticNodeCollator;
+class SemanticMeaningCollator extends SemanticCollator {
+    add(symbol, entry) {
+        const list = this.get(symbol, entry.font);
+        if (!list ||
+            !list.find(function (x) {
+                return SemanticAttr.equal(x, entry);
+            })) {
+            super.add(key(symbol, entry.font), entry);
+        }
+    }
+    addNode(node) {
+        this.add(node.textContent, node.meaning());
+    }
+    toString() {
+        const outer = [];
+        for (const [key, nodes] of this) {
+            const length = Array(key.length + 3).join(' ');
+            const inner = nodes
+                .map((node) => `{type: ${node.type}, role: ${node.role}, font: ${node.font}}`)
+                .join('\n' + length);
+            outer.push(key + ': ' + inner);
+        }
+        return outer.join('\n');
+    }
+    reduce() {
+        for (const [key, val] of this) {
+            if (val.length !== 1) {
+                this.set(key, (0, semantic_ordering_js_1.reduce)(val));
+            }
+        }
+    }
+    default() {
+        const def = new SemanticDefault();
+        for (const [key, val] of this) {
+            if (val.length === 1) {
+                def.set(key, val[0]);
+            }
+        }
+        return def;
+    }
+    newDefault() {
+        const oldDefault = this.default();
+        this.reduce();
+        const newDefault = this.default();
+        return oldDefault.size !== newDefault.size ? newDefault : null;
+    }
+}
+exports.SemanticMeaningCollator = SemanticMeaningCollator;

node_modules/speech-rule-engine/js/semantic_tree/semantic_heuristic.d.ts

@@ -0,0 +1,20 @@
+import { SemanticNode } from './semantic_node.js';
+export declare type SemanticHeuristicTypes = Element | SemanticNode | SemanticNode[];
+export interface SemanticHeuristic<T> {
+    name: string;
+    apply: (node: T) => void;
+    applicable: (node: T) => boolean;
+}
+declare abstract class SemanticAbstractHeuristic<T extends SemanticHeuristicTypes> implements SemanticHeuristic<T> {
+    name: string;
+    apply: (node: T) => void;
+    applicable: (_node: T) => boolean;
+    constructor(name: string, method: (node: T) => void, predicate?: (node: T) => boolean);
+}
+export declare class SemanticTreeHeuristic extends SemanticAbstractHeuristic<SemanticNode> {
+}
+export declare class SemanticMultiHeuristic extends SemanticAbstractHeuristic<SemanticNode[]> {
+}
+export declare class SemanticMmlHeuristic extends SemanticAbstractHeuristic<Element> {
+}
+export {};

node_modules/speech-rule-engine/js/semantic_tree/semantic_heuristic.js

@@ -0,0 +1,19 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticMmlHeuristic = exports.SemanticMultiHeuristic = exports.SemanticTreeHeuristic = void 0;
+class SemanticAbstractHeuristic {
+    constructor(name, method, predicate = (_x) => false) {
+        this.name = name;
+        this.apply = method;
+        this.applicable = predicate;
+    }
+}
+class SemanticTreeHeuristic extends SemanticAbstractHeuristic {
+}
+exports.SemanticTreeHeuristic = SemanticTreeHeuristic;
+class SemanticMultiHeuristic extends SemanticAbstractHeuristic {
+}
+exports.SemanticMultiHeuristic = SemanticMultiHeuristic;
+class SemanticMmlHeuristic extends SemanticAbstractHeuristic {
+}
+exports.SemanticMmlHeuristic = SemanticMmlHeuristic;

node_modules/speech-rule-engine/js/semantic_tree/semantic_heuristic_factory.d.ts

@@ -0,0 +1,15 @@
+import { SemanticHeuristic, SemanticHeuristicTypes } from './semantic_heuristic.js';
+import { SemanticNodeFactory } from './semantic_node_factory.js';
+export declare const SemanticHeuristics: {
+    factory: SemanticNodeFactory;
+    updateFactory: (nodeFactory: SemanticNodeFactory) => void;
+    heuristics: Map<string, SemanticHeuristic<SemanticHeuristicTypes>>;
+    flags: {
+        [key: string]: boolean;
+    };
+    blacklist: {
+        [key: string]: boolean;
+    };
+    add: (heuristic: SemanticHeuristic<SemanticHeuristicTypes>) => void;
+    run: (name: string, root: SemanticHeuristicTypes, opt_alternative?: (p1: SemanticHeuristicTypes) => SemanticHeuristicTypes) => SemanticHeuristicTypes | void;
+};

node_modules/speech-rule-engine/js/semantic_tree/semantic_heuristic_factory.js

@@ -0,0 +1,33 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticHeuristics = void 0;
+exports.SemanticHeuristics = {
+    factory: null,
+    updateFactory: function (nodeFactory) {
+        exports.SemanticHeuristics.factory = nodeFactory;
+    },
+    heuristics: new Map(),
+    flags: {
+        combine_juxtaposition: true,
+        convert_juxtaposition: true,
+        multioperator: true
+    },
+    blacklist: {},
+    add: function (heuristic) {
+        const name = heuristic.name;
+        exports.SemanticHeuristics.heuristics.set(name, heuristic);
+        if (!exports.SemanticHeuristics.flags[name]) {
+            exports.SemanticHeuristics.flags[name] = false;
+        }
+    },
+    run: function (name, root, opt_alternative) {
+        const heuristic = exports.SemanticHeuristics.heuristics.get(name);
+        return heuristic &&
+            !exports.SemanticHeuristics.blacklist[name] &&
+            (exports.SemanticHeuristics.flags[name] || heuristic.applicable(root))
+            ? heuristic.apply(root)
+            : opt_alternative
+                ? opt_alternative(root)
+                : root;
+    }
+};

node_modules/speech-rule-engine/js/semantic_tree/semantic_heuristics.d.ts

@@ -0,0 +1 @@
+export {};

node_modules/speech-rule-engine/js/semantic_tree/semantic_heuristics.js

@@ -0,0 +1,511 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const debugger_js_1 = require("../common/debugger.js");
+const engine_js_1 = require("../common/engine.js");
+const semantic_attr_js_1 = require("./semantic_attr.js");
+const semantic_heuristic_factory_js_1 = require("./semantic_heuristic_factory.js");
+const semantic_heuristic_js_1 = require("./semantic_heuristic.js");
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const SemanticPred = require("./semantic_pred.js");
+const semantic_processor_js_1 = require("./semantic_processor.js");
+const SemanticUtil = require("./semantic_util.js");
+const semantic_skeleton_js_1 = require("./semantic_skeleton.js");
+const semantic_util_js_1 = require("../semantic_tree/semantic_util.js");
+const DomUtil = require("../common/dom_util.js");
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('combine_juxtaposition', combineJuxtaposition));
+function combineJuxtaposition(root) {
+    for (let i = root.childNodes.length - 1, child; (child = root.childNodes[i]); i--) {
+        if (!SemanticPred.isImplicitOp(child) || child.nobreaking) {
+            continue;
+        }
+        root.childNodes.splice(i, 1, ...child.childNodes);
+        root.contentNodes.splice(i, 0, ...child.contentNodes);
+        child.childNodes.concat(child.contentNodes).forEach(function (x) {
+            x.parent = root;
+        });
+        root.addMathmlNodes(child.mathml);
+    }
+    return root;
+}
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('propagateSimpleFunction', (node) => {
+    if ((node.type === semantic_meaning_js_1.SemanticType.INFIXOP ||
+        node.type === semantic_meaning_js_1.SemanticType.FRACTION) &&
+        node.childNodes.every(SemanticPred.isSimpleFunction)) {
+        node.role = semantic_meaning_js_1.SemanticRole.COMPFUNC;
+    }
+    return node;
+}, (_node) => engine_js_1.Engine.getInstance().domain === 'clearspeak'));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('simpleNamedFunction', (node) => {
+    const specialFunctions = ['f', 'g', 'h', 'F', 'G', 'H'];
+    if (node.role !== semantic_meaning_js_1.SemanticRole.UNIT &&
+        specialFunctions.indexOf(node.textContent) !== -1) {
+        node.role = semantic_meaning_js_1.SemanticRole.SIMPLEFUNC;
+    }
+    return node;
+}, (_node) => engine_js_1.Engine.getInstance().domain === 'clearspeak'));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('propagateComposedFunction', (node) => {
+    if (node.type === semantic_meaning_js_1.SemanticType.FENCED &&
+        node.childNodes[0].role === semantic_meaning_js_1.SemanticRole.COMPFUNC) {
+        node.role = semantic_meaning_js_1.SemanticRole.COMPFUNC;
+    }
+    return node;
+}, (_node) => engine_js_1.Engine.getInstance().domain === 'clearspeak'));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('multioperator', (node) => {
+    if (node.role !== semantic_meaning_js_1.SemanticRole.UNKNOWN || node.textContent.length <= 1) {
+        return;
+    }
+    semantic_processor_js_1.SemanticProcessor.compSemantics(node, 'role', semantic_meaning_js_1.SemanticRole);
+    semantic_processor_js_1.SemanticProcessor.compSemantics(node, 'type', semantic_meaning_js_1.SemanticType);
+}));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticMultiHeuristic('convert_juxtaposition', (nodes) => {
+    let partition = SemanticUtil.partitionNodes(nodes, function (x) {
+        return (x.textContent === semantic_attr_js_1.NamedSymbol.invisibleTimes &&
+            x.type === semantic_meaning_js_1.SemanticType.OPERATOR);
+    });
+    partition = partition.rel.length
+        ? juxtapositionPrePost(partition)
+        : partition;
+    nodes = partition.comp[0];
+    for (let i = 1, c, r; (c = partition.comp[i]), (r = partition.rel[i - 1]); i++) {
+        nodes.push(r);
+        nodes = nodes.concat(c);
+    }
+    partition = SemanticUtil.partitionNodes(nodes, function (x) {
+        return (x.textContent === semantic_attr_js_1.NamedSymbol.invisibleTimes &&
+            (x.type === semantic_meaning_js_1.SemanticType.OPERATOR || x.type === semantic_meaning_js_1.SemanticType.INFIXOP));
+    });
+    if (!partition.rel.length) {
+        return nodes;
+    }
+    return recurseJuxtaposition(partition.comp.shift(), partition.rel, partition.comp);
+}));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('simple2prefix', (node) => {
+    if (node.textContent.length > 1 &&
+        !node.textContent[0].match(/[A-Z]/)) {
+        node.role = semantic_meaning_js_1.SemanticRole.PREFIXFUNC;
+    }
+    return node;
+}, (node) => engine_js_1.Engine.getInstance().modality === 'braille' &&
+    node.type === semantic_meaning_js_1.SemanticType.IDENTIFIER));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('detect_cycle', (node) => {
+    node.type = semantic_meaning_js_1.SemanticType.MATRIX;
+    node.role = semantic_meaning_js_1.SemanticRole.CYCLE;
+    const row = node.childNodes[0];
+    row.type = semantic_meaning_js_1.SemanticType.ROW;
+    row.role = semantic_meaning_js_1.SemanticRole.CYCLE;
+    row.textContent = '';
+    row.contentNodes = [];
+    return node;
+}, (node) => node.type === semantic_meaning_js_1.SemanticType.FENCED &&
+    node.childNodes[0].type === semantic_meaning_js_1.SemanticType.INFIXOP &&
+    node.childNodes[0].role === semantic_meaning_js_1.SemanticRole.IMPLICIT &&
+    node.childNodes[0].childNodes.every(function (x) {
+        return x.type === semantic_meaning_js_1.SemanticType.NUMBER;
+    }) &&
+    node.childNodes[0].contentNodes.every(function (x) {
+        return x.role === semantic_meaning_js_1.SemanticRole.SPACE;
+    })));
+function juxtapositionPrePost(partition) {
+    const rels = [];
+    const comps = [];
+    let next = partition.comp.shift();
+    let rel = null;
+    let collect = [];
+    while (partition.comp.length) {
+        collect = [];
+        if (next.length) {
+            if (rel) {
+                rels.push(rel);
+            }
+            comps.push(next);
+            rel = partition.rel.shift();
+            next = partition.comp.shift();
+            continue;
+        }
+        if (rel) {
+            collect.push(rel);
+        }
+        while (!next.length && partition.comp.length) {
+            next = partition.comp.shift();
+            collect.push(partition.rel.shift());
+        }
+        rel = convertPrePost(collect, next, comps);
+    }
+    if (!collect.length && !next.length) {
+        collect.push(rel);
+        convertPrePost(collect, next, comps);
+    }
+    else {
+        rels.push(rel);
+        comps.push(next);
+    }
+    return { rel: rels, comp: comps };
+}
+function convertPrePost(collect, next, comps) {
+    let rel = null;
+    if (!collect.length) {
+        return rel;
+    }
+    const prev = comps[comps.length - 1];
+    const prevExists = prev && prev.length;
+    const nextExists = next && next.length;
+    const processor = semantic_processor_js_1.SemanticProcessor.getInstance();
+    if (prevExists && nextExists) {
+        if (next[0].type === semantic_meaning_js_1.SemanticType.INFIXOP &&
+            next[0].role === semantic_meaning_js_1.SemanticRole.IMPLICIT) {
+            rel = collect.pop();
+            prev.push(processor['postfixNode_'](prev.pop(), collect));
+            return rel;
+        }
+        rel = collect.shift();
+        const result = processor['prefixNode_'](next.shift(), collect);
+        next.unshift(result);
+        return rel;
+    }
+    if (prevExists) {
+        prev.push(processor['postfixNode_'](prev.pop(), collect));
+        return rel;
+    }
+    if (nextExists) {
+        next.unshift(processor['prefixNode_'](next.shift(), collect));
+    }
+    return rel;
+}
+function recurseJuxtaposition(acc, ops, elements) {
+    if (!ops.length) {
+        return acc;
+    }
+    const left = acc.pop();
+    const op = ops.shift();
+    const first = elements.shift();
+    if (op.type === semantic_meaning_js_1.SemanticType.INFIXOP &&
+        (op.role === semantic_meaning_js_1.SemanticRole.IMPLICIT || op.role === semantic_meaning_js_1.SemanticRole.UNIT)) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 2');
+        const right = (left ? [left, op] : [op]).concat(first);
+        return recurseJuxtaposition(acc.concat(right), ops, elements);
+    }
+    if (!left) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 3');
+        return recurseJuxtaposition([op].concat(first), ops, elements);
+    }
+    const right = first.shift();
+    if (!right) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 9');
+        const newOp = semantic_heuristic_factory_js_1.SemanticHeuristics.factory.makeBranchNode(semantic_meaning_js_1.SemanticType.INFIXOP, [left, ops.shift()], [op], op.textContent);
+        newOp.role = semantic_meaning_js_1.SemanticRole.IMPLICIT;
+        semantic_heuristic_factory_js_1.SemanticHeuristics.run('combine_juxtaposition', newOp);
+        ops.unshift(newOp);
+        return recurseJuxtaposition(acc, ops, elements);
+    }
+    if (SemanticPred.isOperator(left) || SemanticPred.isOperator(right)) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 4');
+        return recurseJuxtaposition(acc.concat([left, op, right]).concat(first), ops, elements);
+    }
+    let result = null;
+    if (SemanticPred.isImplicitOp(left) && SemanticPred.isImplicitOp(right)) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 5');
+        left.contentNodes.push(op);
+        left.contentNodes = left.contentNodes.concat(right.contentNodes);
+        left.childNodes.push(right);
+        left.childNodes = left.childNodes.concat(right.childNodes);
+        right.childNodes.forEach((x) => (x.parent = left));
+        op.parent = left;
+        left.addMathmlNodes(op.mathml);
+        left.addMathmlNodes(right.mathml);
+        result = left;
+    }
+    else if (SemanticPred.isImplicitOp(left)) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 6');
+        left.contentNodes.push(op);
+        left.childNodes.push(right);
+        right.parent = left;
+        op.parent = left;
+        left.addMathmlNodes(op.mathml);
+        left.addMathmlNodes(right.mathml);
+        result = left;
+    }
+    else if (SemanticPred.isImplicitOp(right)) {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 7');
+        right.contentNodes.unshift(op);
+        right.childNodes.unshift(left);
+        left.parent = right;
+        op.parent = right;
+        right.addMathmlNodes(op.mathml);
+        right.addMathmlNodes(left.mathml);
+        result = right;
+    }
+    else {
+        debugger_js_1.Debugger.getInstance().output('Juxta Heuristic Case 8');
+        result = semantic_heuristic_factory_js_1.SemanticHeuristics.factory.makeBranchNode(semantic_meaning_js_1.SemanticType.INFIXOP, [left, right], [op], op.textContent);
+        result.role = semantic_meaning_js_1.SemanticRole.IMPLICIT;
+    }
+    acc.push(result);
+    return recurseJuxtaposition(acc.concat(first), ops, elements);
+}
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticMultiHeuristic('intvar_from_implicit', implicitUnpack, (nodes) => nodes[0] && SemanticPred.isImplicit(nodes[0])));
+function implicitUnpack(nodes) {
+    const children = nodes[0].childNodes;
+    nodes.splice(0, 1, ...children);
+}
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('intvar_from_fraction', integralFractionArg, (node) => {
+    if (node.type !== semantic_meaning_js_1.SemanticType.INTEGRAL)
+        return false;
+    const [, integrand, intvar] = node.childNodes;
+    return (intvar.type === semantic_meaning_js_1.SemanticType.EMPTY &&
+        integrand.type === semantic_meaning_js_1.SemanticType.FRACTION);
+}));
+function integralFractionArg(node) {
+    const integrand = node.childNodes[1];
+    const enumerator = integrand.childNodes[0];
+    if (SemanticPred.isIntegralDxBoundarySingle(enumerator)) {
+        enumerator.role = semantic_meaning_js_1.SemanticRole.INTEGRAL;
+        return;
+    }
+    if (!SemanticPred.isImplicit(enumerator))
+        return;
+    const length = enumerator.childNodes.length;
+    const first = enumerator.childNodes[length - 2];
+    const second = enumerator.childNodes[length - 1];
+    if (SemanticPred.isIntegralDxBoundarySingle(second)) {
+        second.role = semantic_meaning_js_1.SemanticRole.INTEGRAL;
+        return;
+    }
+    if (SemanticPred.isIntegralDxBoundary(first, second)) {
+        const prefix = semantic_processor_js_1.SemanticProcessor.getInstance()['prefixNode_'](second, [
+            first
+        ]);
+        prefix.role = semantic_meaning_js_1.SemanticRole.INTEGRAL;
+        if (length === 2) {
+            integrand.childNodes[0] = prefix;
+        }
+        else {
+            enumerator.childNodes.pop();
+            enumerator.contentNodes.pop();
+            enumerator.childNodes[length - 2] = prefix;
+            prefix.parent = enumerator;
+        }
+    }
+}
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticTreeHeuristic('rewrite_subcases', rewriteSubcasesTable, (table) => {
+    let left = true;
+    let right = true;
+    const topLeft = table.childNodes[0].childNodes[0];
+    if (!eligibleNode(topLeft.mathmlTree)) {
+        left = false;
+    }
+    else {
+        for (let i = 1, row; (row = table.childNodes[i]); i++) {
+            if (row.childNodes[0].childNodes.length) {
+                left = false;
+                break;
+            }
+        }
+    }
+    if (left) {
+        table.addAnnotation('Emph', 'left');
+    }
+    const topRight = table.childNodes[0].childNodes[table.childNodes[0].childNodes.length - 1];
+    if (!eligibleNode(topRight.mathmlTree)) {
+        right = false;
+    }
+    else {
+        const firstRow = table.childNodes[0].childNodes.length;
+        for (let i = 1, row; (row = table.childNodes[i]); i++) {
+            if (row.childNodes.length >= firstRow) {
+                right = false;
+                break;
+            }
+        }
+    }
+    if (right) {
+        table.addAnnotation('Emph', 'right');
+    }
+    return left || right;
+}));
+function eligibleNode(node) {
+    return (node.childNodes[0] &&
+        node.childNodes[0].childNodes[0] &&
+        DomUtil.tagName(node.childNodes[0]) === semantic_util_js_1.MMLTAGS.MPADDED &&
+        DomUtil.tagName(node.childNodes[0].childNodes[0]) ===
+            semantic_util_js_1.MMLTAGS.MPADDED &&
+        DomUtil.tagName(node.childNodes[0].childNodes[node.childNodes[0].childNodes.length - 1]) === semantic_util_js_1.MMLTAGS.MPHANTOM);
+}
+const rewritable = [
+    semantic_meaning_js_1.SemanticType.PUNCTUATED,
+    semantic_meaning_js_1.SemanticType.RELSEQ,
+    semantic_meaning_js_1.SemanticType.MULTIREL,
+    semantic_meaning_js_1.SemanticType.INFIXOP,
+    semantic_meaning_js_1.SemanticType.PREFIXOP,
+    semantic_meaning_js_1.SemanticType.POSTFIXOP
+];
+function rewriteSubcasesTable(table) {
+    table.addAnnotation('Emph', 'top');
+    let row = [];
+    if (table.hasAnnotation('Emph', 'left')) {
+        const topLeft = table.childNodes[0].childNodes[0].childNodes[0];
+        const cells = rewriteCell(topLeft, true);
+        cells.forEach((x) => x.addAnnotation('Emph', 'left'));
+        row = row.concat(cells);
+        for (let i = 0, line; (line = table.childNodes[i]); i++) {
+            line.childNodes.shift();
+        }
+    }
+    row.push(table);
+    if (table.hasAnnotation('Emph', 'right')) {
+        const topRight = table.childNodes[0].childNodes[table.childNodes[0].childNodes.length - 1]
+            .childNodes[0];
+        const cells = rewriteCell(topRight);
+        cells.forEach((x) => x.addAnnotation('Emph', 'left'));
+        row = row.concat(cells);
+        table.childNodes[0].childNodes.pop();
+    }
+    semantic_processor_js_1.SemanticProcessor.tableToMultiline(table);
+    const newNode = semantic_processor_js_1.SemanticProcessor.getInstance().row(row);
+    const annotation = table.annotation['Emph'];
+    table.annotation['Emph'] = ['table'];
+    annotation.forEach((x) => newNode.addAnnotation('Emph', x));
+    return newNode;
+}
+function rewriteCell(cell, left) {
+    if (!cell.childNodes.length) {
+        rewriteFence(cell);
+        return [cell];
+    }
+    let fence = null;
+    if (cell.type === semantic_meaning_js_1.SemanticType.PUNCTUATED &&
+        (left
+            ? cell.role === semantic_meaning_js_1.SemanticRole.ENDPUNCT
+            : cell.role === semantic_meaning_js_1.SemanticRole.STARTPUNCT)) {
+        const children = cell.childNodes;
+        if (rewriteFence(children[left ? children.length - 1 : 0])) {
+            cell = children[left ? 0 : children.length - 1];
+            fence = children[left ? children.length - 1 : 0];
+        }
+    }
+    if (rewritable.indexOf(cell.type) !== -1) {
+        const children = cell.childNodes;
+        rewriteFence(children[left ? children.length - 1 : 0]);
+        const newNodes = semantic_skeleton_js_1.SemanticSkeleton.combineContentChildren(cell.type, cell.role, cell.contentNodes, cell.childNodes);
+        if (fence) {
+            if (left) {
+                newNodes.push(fence);
+            }
+            else {
+                newNodes.unshift(fence);
+            }
+        }
+        return newNodes;
+    }
+    return fence ? (left ? [cell, fence] : [fence, cell]) : [cell];
+}
+const PUNCT_TO_FENCE_ = {
+    [semantic_meaning_js_1.SemanticRole.METRIC]: semantic_meaning_js_1.SemanticRole.METRIC,
+    [semantic_meaning_js_1.SemanticRole.VBAR]: semantic_meaning_js_1.SemanticRole.NEUTRAL,
+    [semantic_meaning_js_1.SemanticRole.OPENFENCE]: semantic_meaning_js_1.SemanticRole.OPEN,
+    [semantic_meaning_js_1.SemanticRole.CLOSEFENCE]: semantic_meaning_js_1.SemanticRole.CLOSE
+};
+function rewriteFence(fence) {
+    if (fence.type !== semantic_meaning_js_1.SemanticType.PUNCTUATION) {
+        return false;
+    }
+    const role = PUNCT_TO_FENCE_[fence.role];
+    if (!role) {
+        return false;
+    }
+    fence.role = role;
+    fence.type = semantic_meaning_js_1.SemanticType.FENCE;
+    fence.addAnnotation('Emph', 'fence');
+    return true;
+}
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticMultiHeuristic('ellipses', (nodes) => {
+    const newNodes = [];
+    let current = nodes.shift();
+    while (current) {
+        [current, nodes] = combineNodes(current, nodes, semantic_meaning_js_1.SemanticRole.FULLSTOP, semantic_meaning_js_1.SemanticRole.ELLIPSIS);
+        [current, nodes] = combineNodes(current, nodes, semantic_meaning_js_1.SemanticRole.DASH);
+        newNodes.push(current);
+        current = nodes.shift();
+    }
+    return newNodes;
+}, (nodes) => nodes.length > 1));
+function combineNodes(current, nodes, src, target = src) {
+    const collect = [];
+    while (current && current.role === src) {
+        collect.push(current);
+        current = nodes.shift();
+    }
+    if (!collect.length) {
+        return [current, nodes];
+    }
+    if (current) {
+        nodes.unshift(current);
+    }
+    return [
+        collect.length === 1 ? collect[0] : combinedNodes(collect, target),
+        nodes
+    ];
+}
+function combinedNodes(nodes, role) {
+    const node = semantic_heuristic_factory_js_1.SemanticHeuristics.factory.makeBranchNode(semantic_meaning_js_1.SemanticType.PUNCTUATION, nodes, []);
+    node.role = role;
+    return node;
+}
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticMultiHeuristic('op_with_limits', (nodes) => {
+    const center = nodes[0];
+    center.type = semantic_meaning_js_1.SemanticType.LARGEOP;
+    center.role = semantic_meaning_js_1.SemanticRole.SUM;
+    return nodes;
+}, (nodes) => {
+    return (nodes[0].type === semantic_meaning_js_1.SemanticType.OPERATOR &&
+        nodes
+            .slice(1)
+            .some((node) => node.type === semantic_meaning_js_1.SemanticType.RELSEQ ||
+            node.type === semantic_meaning_js_1.SemanticType.MULTIREL ||
+            (node.type === semantic_meaning_js_1.SemanticType.INFIXOP &&
+                node.role === semantic_meaning_js_1.SemanticRole.ELEMENT) ||
+            (node.type === semantic_meaning_js_1.SemanticType.PUNCTUATED &&
+                node.role === semantic_meaning_js_1.SemanticRole.SEQUENCE)));
+}));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticMultiHeuristic('bracketed_interval', (nodes) => {
+    const leftFence = nodes[0];
+    const rightFence = nodes[1];
+    const content = nodes.slice(2);
+    const childNode = semantic_processor_js_1.SemanticProcessor.getInstance().row(content);
+    const fenced = semantic_heuristic_factory_js_1.SemanticHeuristics.factory.makeBranchNode(semantic_meaning_js_1.SemanticType.FENCED, [childNode], [leftFence, rightFence]);
+    fenced.role = semantic_meaning_js_1.SemanticRole.LEFTRIGHT;
+    return fenced;
+}, (nodes) => {
+    const leftFence = nodes[0];
+    const rightFence = nodes[1];
+    const content = nodes.slice(2);
+    if (!(leftFence &&
+        (leftFence.textContent === ']' || leftFence.textContent === '[') &&
+        rightFence &&
+        (rightFence.textContent === ']' || rightFence.textContent === '['))) {
+        return false;
+    }
+    const partition = SemanticUtil.partitionNodes(content, SemanticPred.isPunctuation);
+    return !!(partition.rel.length === 1 &&
+        partition.comp[0].length &&
+        partition.comp[1].length);
+}));
+semantic_heuristic_factory_js_1.SemanticHeuristics.add(new semantic_heuristic_js_1.SemanticMmlHeuristic('function_from_identifiers', (node) => {
+    const expr = DomUtil.toArray(node.childNodes)
+        .map((x) => x.textContent.trim())
+        .join('');
+    const meaning = semantic_attr_js_1.SemanticMap.Meaning.get(expr);
+    if (meaning.type === semantic_meaning_js_1.SemanticType.UNKNOWN) {
+        return node;
+    }
+    const snode = semantic_heuristic_factory_js_1.SemanticHeuristics.factory.makeLeafNode(expr, semantic_processor_js_1.SemanticProcessor.getInstance().font(node.getAttribute('mathvariant')));
+    snode.mathmlTree = node;
+    return snode;
+}, (node) => {
+    const children = DomUtil.toArray(node.childNodes);
+    if (children.length < 2) {
+        return false;
+    }
+    return children.every((child) => DomUtil.tagName(child) === semantic_util_js_1.MMLTAGS.MI &&
+        semantic_attr_js_1.SemanticMap.Meaning.get(child.textContent.trim()).role ===
+            semantic_meaning_js_1.SemanticRole.LATINLETTER);
+}));

node_modules/speech-rule-engine/js/semantic_tree/semantic_mathml.d.ts

@@ -0,0 +1,29 @@
+import { SemanticAbstractParser } from './semantic_parser.js';
+export declare class SemanticMathml extends SemanticAbstractParser<Element> {
+    private parseMap_;
+    private static getAttribute_;
+    constructor();
+    parse(mml: Element): any;
+    private semantics_;
+    private rows_;
+    private fraction_;
+    private limits_;
+    private root_;
+    private sqrt_;
+    private table_;
+    private tableRow_;
+    private tableLabeledRow_;
+    private tableCell_;
+    private space_;
+    private text_;
+    private identifier_;
+    private number_;
+    private operator_;
+    private fenced_;
+    private enclosed_;
+    private multiscripts_;
+    private empty_;
+    private action_;
+    private dummy_;
+    private leaf_;
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_mathml.js

@@ -0,0 +1,328 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticMathml = void 0;
+const DomUtil = require("../common/dom_util.js");
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const semantic_attr_js_1 = require("./semantic_attr.js");
+const semantic_parser_js_1 = require("./semantic_parser.js");
+const SemanticPred = require("./semantic_pred.js");
+const semantic_processor_js_1 = require("./semantic_processor.js");
+const SemanticUtil = require("./semantic_util.js");
+const semantic_util_js_1 = require("../semantic_tree/semantic_util.js");
+const semantic_heuristic_factory_js_1 = require("./semantic_heuristic_factory.js");
+class SemanticMathml extends semantic_parser_js_1.SemanticAbstractParser {
+    static getAttribute_(node, attr, def) {
+        if (!node.hasAttribute(attr)) {
+            return def;
+        }
+        const value = node.getAttribute(attr);
+        if (value.match(/^\s*$/)) {
+            return null;
+        }
+        return value;
+    }
+    constructor() {
+        super('MathML');
+        this.parseMap_ = new Map([
+            [semantic_util_js_1.MMLTAGS.SEMANTICS, this.semantics_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MATH, this.rows_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MROW, this.rows_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MPADDED, this.rows_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MSTYLE, this.rows_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MFRAC, this.fraction_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MSUB, this.limits_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MSUP, this.limits_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MSUBSUP, this.limits_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MOVER, this.limits_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MUNDER, this.limits_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MUNDEROVER, this.limits_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MROOT, this.root_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MSQRT, this.sqrt_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MTABLE, this.table_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MLABELEDTR, this.tableLabeledRow_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MTR, this.tableRow_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MTD, this.tableCell_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MS, this.text_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MTEXT, this.text_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MSPACE, this.space_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.ANNOTATIONXML, this.text_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MI, this.identifier_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MN, this.number_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MO, this.operator_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MFENCED, this.fenced_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MENCLOSE, this.enclosed_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MMULTISCRIPTS, this.multiscripts_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.ANNOTATION, this.empty_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.NONE, this.empty_.bind(this)],
+            [semantic_util_js_1.MMLTAGS.MACTION, this.action_.bind(this)]
+        ]);
+        const meaning = {
+            type: semantic_meaning_js_1.SemanticType.IDENTIFIER,
+            role: semantic_meaning_js_1.SemanticRole.NUMBERSET,
+            font: semantic_meaning_js_1.SemanticFont.DOUBLESTRUCK
+        };
+        [
+            'C',
+            'H',
+            'N',
+            'P',
+            'Q',
+            'R',
+            'Z',
+            'ℂ',
+            'ℍ',
+            'ℕ',
+            'ℙ',
+            'ℚ',
+            'ℝ',
+            'ℤ'
+        ].forEach(((x) => this.getFactory().defaultMap.set(x, meaning)).bind(this));
+    }
+    parse(mml) {
+        semantic_processor_js_1.SemanticProcessor.getInstance().setNodeFactory(this.getFactory());
+        const children = DomUtil.toArray(mml.childNodes);
+        const tag = DomUtil.tagName(mml);
+        const func = this.parseMap_.get(tag);
+        const newNode = (func ? func : this.dummy_.bind(this))(mml, children);
+        SemanticUtil.addAttributes(newNode, mml);
+        if ([
+            semantic_util_js_1.MMLTAGS.MATH,
+            semantic_util_js_1.MMLTAGS.MROW,
+            semantic_util_js_1.MMLTAGS.MPADDED,
+            semantic_util_js_1.MMLTAGS.MSTYLE,
+            semantic_util_js_1.MMLTAGS.SEMANTICS,
+            semantic_util_js_1.MMLTAGS.MACTION
+        ].indexOf(tag) !== -1) {
+            return newNode;
+        }
+        newNode.mathml.unshift(mml);
+        newNode.mathmlTree = mml;
+        return newNode;
+    }
+    semantics_(_node, children) {
+        return children.length
+            ? this.parse(children[0])
+            : this.getFactory().makeEmptyNode();
+    }
+    rows_(node, children) {
+        const semantics = node.getAttribute('semantics');
+        if (semantics && semantics.match('bspr_')) {
+            return semantic_processor_js_1.SemanticProcessor.proof(node, semantics, this.parseList.bind(this));
+        }
+        children = SemanticUtil.purgeNodes(children);
+        let newNode;
+        if (children.length === 1) {
+            newNode = this.parse(children[0]);
+            if (newNode.type === semantic_meaning_js_1.SemanticType.EMPTY && !newNode.mathmlTree) {
+                newNode.mathmlTree = node;
+            }
+        }
+        else {
+            const snode = semantic_heuristic_factory_js_1.SemanticHeuristics.run('function_from_identifiers', node);
+            newNode =
+                snode && snode !== node
+                    ? snode
+                    : semantic_processor_js_1.SemanticProcessor.getInstance().row(this.parseList(children));
+        }
+        newNode.mathml.unshift(node);
+        return newNode;
+    }
+    fraction_(node, children) {
+        if (!children.length) {
+            return this.getFactory().makeEmptyNode();
+        }
+        const upper = this.parse(children[0]);
+        const lower = children[1]
+            ? this.parse(children[1])
+            : this.getFactory().makeEmptyNode();
+        const sem = semantic_processor_js_1.SemanticProcessor.getInstance().fractionLikeNode(upper, lower, node.getAttribute('linethickness'), node.getAttribute('bevelled') === 'true');
+        return sem;
+    }
+    limits_(node, children) {
+        return semantic_processor_js_1.SemanticProcessor.getInstance().limitNode(DomUtil.tagName(node), this.parseList(children));
+    }
+    root_(node, children) {
+        if (!children[1]) {
+            return this.sqrt_(node, children);
+        }
+        return this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ROOT, [this.parse(children[1]), this.parse(children[0])], []);
+    }
+    sqrt_(_node, children) {
+        const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
+        return this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.SQRT, [semantic_processor_js_1.SemanticProcessor.getInstance().row(semNodes)], []);
+    }
+    table_(node, children) {
+        const semantics = node.getAttribute('semantics');
+        if (semantics && semantics.match('bspr_')) {
+            return semantic_processor_js_1.SemanticProcessor.proof(node, semantics, this.parseList.bind(this));
+        }
+        const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.TABLE, this.parseList(children), []);
+        newNode.mathmlTree = node;
+        return semantic_processor_js_1.SemanticProcessor.tableToMultiline(newNode);
+    }
+    tableRow_(_node, children) {
+        const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ROW, this.parseList(children), []);
+        newNode.role = semantic_meaning_js_1.SemanticRole.TABLE;
+        return newNode;
+    }
+    tableLabeledRow_(node, children) {
+        var _a;
+        if (!children.length) {
+            return this.tableRow_(node, children);
+        }
+        const label = this.parse(children[0]);
+        label.role = semantic_meaning_js_1.SemanticRole.LABEL;
+        if (((_a = label.childNodes[0]) === null || _a === void 0 ? void 0 : _a.type) === semantic_meaning_js_1.SemanticType.TEXT) {
+            label.childNodes[0].role = semantic_meaning_js_1.SemanticRole.LABEL;
+        }
+        const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ROW, this.parseList(children.slice(1)), [label]);
+        newNode.role = semantic_meaning_js_1.SemanticRole.TABLE;
+        return newNode;
+    }
+    tableCell_(_node, children) {
+        const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
+        let childNodes;
+        if (!semNodes.length) {
+            childNodes = [];
+        }
+        else if (semNodes.length === 1 &&
+            SemanticPred.isType(semNodes[0], semantic_meaning_js_1.SemanticType.EMPTY)) {
+            childNodes = semNodes;
+        }
+        else {
+            childNodes = [semantic_processor_js_1.SemanticProcessor.getInstance().row(semNodes)];
+        }
+        const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.CELL, childNodes, []);
+        newNode.role = semantic_meaning_js_1.SemanticRole.TABLE;
+        return newNode;
+    }
+    space_(node, children) {
+        const width = node.getAttribute('width');
+        const match = width && width.match(/[a-z]*$/);
+        if (!match) {
+            return this.empty_(node, children);
+        }
+        const sizes = {
+            cm: 0.4,
+            pc: 0.5,
+            em: 0.5,
+            ex: 1,
+            in: 0.15,
+            pt: 5,
+            mm: 5
+        };
+        const unit = match[0];
+        const measure = parseFloat(width.slice(0, match.index));
+        const size = sizes[unit];
+        if (!size || isNaN(measure) || measure < size) {
+            return this.empty_(node, children);
+        }
+        const newNode = this.getFactory().makeUnprocessed(node);
+        return semantic_processor_js_1.SemanticProcessor.getInstance().text(newNode, DomUtil.tagName(node));
+    }
+    text_(node, children) {
+        const newNode = this.leaf_(node, children);
+        if (!node.textContent) {
+            return newNode;
+        }
+        newNode.updateContent(node.textContent, true);
+        return semantic_processor_js_1.SemanticProcessor.getInstance().text(newNode, DomUtil.tagName(node));
+    }
+    identifier_(node, children) {
+        const newNode = this.leaf_(node, children);
+        return semantic_processor_js_1.SemanticProcessor.getInstance().identifierNode(newNode, semantic_processor_js_1.SemanticProcessor.getInstance().font(node.getAttribute('mathvariant')), node.getAttribute('class'));
+    }
+    number_(node, children) {
+        const newNode = this.leaf_(node, children);
+        semantic_processor_js_1.SemanticProcessor.number(newNode);
+        return newNode;
+    }
+    operator_(node, children) {
+        const newNode = this.leaf_(node, children);
+        semantic_processor_js_1.SemanticProcessor.getInstance().operatorNode(newNode);
+        return newNode;
+    }
+    fenced_(node, children) {
+        const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
+        const sepValue = SemanticMathml.getAttribute_(node, 'separators', ',');
+        const open = SemanticMathml.getAttribute_(node, 'open', '(');
+        const close = SemanticMathml.getAttribute_(node, 'close', ')');
+        const newNode = semantic_processor_js_1.SemanticProcessor.getInstance().mfenced(open, close, sepValue, semNodes);
+        const nodes = semantic_processor_js_1.SemanticProcessor.getInstance().tablesInRow([newNode]);
+        return nodes[0];
+    }
+    enclosed_(node, children) {
+        const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
+        const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ENCLOSE, [semantic_processor_js_1.SemanticProcessor.getInstance().row(semNodes)], []);
+        newNode.role =
+            node.getAttribute('notation') || semantic_meaning_js_1.SemanticRole.UNKNOWN;
+        return newNode;
+    }
+    multiscripts_(_node, children) {
+        if (!children.length) {
+            return this.getFactory().makeEmptyNode();
+        }
+        const base = this.parse(children.shift());
+        if (!children.length) {
+            return base;
+        }
+        const lsup = [];
+        const lsub = [];
+        const rsup = [];
+        const rsub = [];
+        let prescripts = false;
+        let scriptcount = 0;
+        for (let i = 0, child; (child = children[i]); i++) {
+            if (DomUtil.tagName(child) === semantic_util_js_1.MMLTAGS.MPRESCRIPTS) {
+                prescripts = true;
+                scriptcount = 0;
+                continue;
+            }
+            prescripts
+                ? scriptcount & 1
+                    ? lsup.push(child)
+                    : lsub.push(child)
+                : scriptcount & 1
+                    ? rsup.push(child)
+                    : rsub.push(child);
+            scriptcount++;
+        }
+        if (!SemanticUtil.purgeNodes(lsup).length &&
+            !SemanticUtil.purgeNodes(lsub).length) {
+            return semantic_processor_js_1.SemanticProcessor.getInstance().pseudoTensor(base, this.parseList(rsub), this.parseList(rsup));
+        }
+        return semantic_processor_js_1.SemanticProcessor.getInstance().tensor(base, this.parseList(lsub), this.parseList(lsup), this.parseList(rsub), this.parseList(rsup));
+    }
+    empty_(_node, _children) {
+        return this.getFactory().makeEmptyNode();
+    }
+    action_(node, children) {
+        const selection = children[node.hasAttribute('selection')
+            ? parseInt(node.getAttribute('selection'), 10) - 1
+            : 0];
+        const stree = this.parse(selection);
+        stree.mathmlTree = selection;
+        return stree;
+    }
+    dummy_(node, _children) {
+        const unknown = this.getFactory().makeUnprocessed(node);
+        unknown.role = node.tagName;
+        unknown.textContent = node.textContent;
+        return unknown;
+    }
+    leaf_(mml, children) {
+        if (children.length === 1 &&
+            children[0].nodeType !== DomUtil.NodeType.TEXT_NODE) {
+            const node = this.getFactory().makeUnprocessed(mml);
+            node.role = children[0].tagName;
+            SemanticUtil.addAttributes(node, children[0]);
+            return node;
+        }
+        const node = this.getFactory().makeLeafNode(mml.textContent, semantic_processor_js_1.SemanticProcessor.getInstance().font(mml.getAttribute('mathvariant')));
+        if (mml.hasAttribute('data-latex')) {
+            semantic_attr_js_1.SemanticMap.LatexCommands.set(mml.getAttribute('data-latex'), mml.textContent);
+        }
+        return node;
+    }
+}
+exports.SemanticMathml = SemanticMathml;

node_modules/speech-rule-engine/js/semantic_tree/semantic_meaning.d.ts

@@ -0,0 +1,390 @@
+import * as Alphabet from '../speech_rules/alphabet.js';
+export interface SemanticMeaning {
+    type: SemanticType;
+    role: SemanticRole;
+    font: SemanticFont;
+}
+declare enum Types {
+    PUNCTUATION = "punctuation",
+    FENCE = "fence",
+    NUMBER = "number",
+    IDENTIFIER = "identifier",
+    TEXT = "text",
+    OPERATOR = "operator",
+    RELATION = "relation",
+    LARGEOP = "largeop",
+    FUNCTION = "function",
+    ACCENT = "accent",
+    FENCED = "fenced",
+    FRACTION = "fraction",
+    PUNCTUATED = "punctuated",
+    RELSEQ = "relseq",
+    MULTIREL = "multirel",
+    INFIXOP = "infixop",
+    PREFIXOP = "prefixop",
+    POSTFIXOP = "postfixop",
+    APPL = "appl",
+    INTEGRAL = "integral",
+    BIGOP = "bigop",
+    SQRT = "sqrt",
+    ROOT = "root",
+    LIMUPPER = "limupper",
+    LIMLOWER = "limlower",
+    LIMBOTH = "limboth",
+    SUBSCRIPT = "subscript",
+    SUPERSCRIPT = "superscript",
+    UNDERSCORE = "underscore",
+    OVERSCORE = "overscore",
+    TENSOR = "tensor",
+    TABLE = "table",
+    MULTILINE = "multiline",
+    MATRIX = "matrix",
+    VECTOR = "vector",
+    CASES = "cases",
+    ROW = "row",
+    LINE = "line",
+    CELL = "cell",
+    ENCLOSE = "enclose",
+    INFERENCE = "inference",
+    RULELABEL = "rulelabel",
+    CONCLUSION = "conclusion",
+    PREMISES = "premises",
+    UNKNOWN = "unknown",
+    EMPTY = "empty"
+}
+export type SemanticType = Types;
+export declare const SemanticType: {
+    PUNCTUATION: Types.PUNCTUATION;
+    FENCE: Types.FENCE;
+    NUMBER: Types.NUMBER;
+    IDENTIFIER: Types.IDENTIFIER;
+    TEXT: Types.TEXT;
+    OPERATOR: Types.OPERATOR;
+    RELATION: Types.RELATION;
+    LARGEOP: Types.LARGEOP;
+    FUNCTION: Types.FUNCTION;
+    ACCENT: Types.ACCENT;
+    FENCED: Types.FENCED;
+    FRACTION: Types.FRACTION;
+    PUNCTUATED: Types.PUNCTUATED;
+    RELSEQ: Types.RELSEQ;
+    MULTIREL: Types.MULTIREL;
+    INFIXOP: Types.INFIXOP;
+    PREFIXOP: Types.PREFIXOP;
+    POSTFIXOP: Types.POSTFIXOP;
+    APPL: Types.APPL;
+    INTEGRAL: Types.INTEGRAL;
+    BIGOP: Types.BIGOP;
+    SQRT: Types.SQRT;
+    ROOT: Types.ROOT;
+    LIMUPPER: Types.LIMUPPER;
+    LIMLOWER: Types.LIMLOWER;
+    LIMBOTH: Types.LIMBOTH;
+    SUBSCRIPT: Types.SUBSCRIPT;
+    SUPERSCRIPT: Types.SUPERSCRIPT;
+    UNDERSCORE: Types.UNDERSCORE;
+    OVERSCORE: Types.OVERSCORE;
+    TENSOR: Types.TENSOR;
+    TABLE: Types.TABLE;
+    MULTILINE: Types.MULTILINE;
+    MATRIX: Types.MATRIX;
+    VECTOR: Types.VECTOR;
+    CASES: Types.CASES;
+    ROW: Types.ROW;
+    LINE: Types.LINE;
+    CELL: Types.CELL;
+    ENCLOSE: Types.ENCLOSE;
+    INFERENCE: Types.INFERENCE;
+    RULELABEL: Types.RULELABEL;
+    CONCLUSION: Types.CONCLUSION;
+    PREMISES: Types.PREMISES;
+    UNKNOWN: Types.UNKNOWN;
+    EMPTY: Types.EMPTY;
+};
+declare enum Roles {
+    COMMA = "comma",
+    SEMICOLON = "semicolon",
+    ELLIPSIS = "ellipsis",
+    FULLSTOP = "fullstop",
+    QUESTION = "question",
+    EXCLAMATION = "exclamation",
+    QUOTES = "quotes",
+    DASH = "dash",
+    TILDE = "tilde",
+    PRIME = "prime",
+    DEGREE = "degree",
+    VBAR = "vbar",
+    COLON = "colon",
+    OPENFENCE = "openfence",
+    CLOSEFENCE = "closefence",
+    APPLICATION = "application",
+    DUMMY = "dummy",
+    UNIT = "unit",
+    LABEL = "label",
+    OPEN = "open",
+    CLOSE = "close",
+    TOP = "top",
+    BOTTOM = "bottom",
+    NEUTRAL = "neutral",
+    METRIC = "metric",
+    LATINLETTER = "latinletter",
+    GREEKLETTER = "greekletter",
+    OTHERLETTER = "otherletter",
+    NUMBERSET = "numbersetletter",
+    INTEGER = "integer",
+    FLOAT = "float",
+    OTHERNUMBER = "othernumber",
+    INFTY = "infty",
+    MIXED = "mixed",
+    MULTIACCENT = "multiaccent",
+    OVERACCENT = "overaccent",
+    UNDERACCENT = "underaccent",
+    UNDEROVER = "underover",
+    SUBSUP = "subsup",
+    LEFTSUB = "leftsub",
+    LEFTSUPER = "leftsuper",
+    RIGHTSUB = "rightsub",
+    RIGHTSUPER = "rightsuper",
+    LEFTRIGHT = "leftright",
+    ABOVEBELOW = "abovebelow",
+    SETEMPTY = "set empty",
+    SETEXT = "set extended",
+    SETSINGLE = "set singleton",
+    SETCOLLECT = "set collection",
+    STRING = "string",
+    SPACE = "space",
+    ANNOTATION = "annotation",
+    TEXT = "text",
+    SEQUENCE = "sequence",
+    ENDPUNCT = "endpunct",
+    STARTPUNCT = "startpunct",
+    NEGATIVE = "negative",
+    POSITIVE = "positive",
+    NEGATION = "negation",
+    MULTIOP = "multiop",
+    PREFIXOP = "prefix operator",
+    POSTFIXOP = "postfix operator",
+    LIMFUNC = "limit function",
+    INFIXFUNC = "infix function",
+    PREFIXFUNC = "prefix function",
+    POSTFIXFUNC = "postfix function",
+    SIMPLEFUNC = "simple function",
+    COMPFUNC = "composed function",
+    SUM = "sum",
+    INTEGRAL = "integral",
+    GEOMETRY = "geometry",
+    BOX = "box",
+    BLOCK = "block",
+    ADDITION = "addition",
+    MULTIPLICATION = "multiplication",
+    SUBTRACTION = "subtraction",
+    IMPLICIT = "implicit",
+    DIVISION = "division",
+    VULGAR = "vulgar",
+    EQUALITY = "equality",
+    INEQUALITY = "inequality",
+    ARROW = "arrow",
+    ELEMENT = "element",
+    NONELEMENT = "nonelement",
+    REELEMENT = "reelement",
+    RENONELEMENT = "renonelement",
+    SET = "set",
+    DETERMINANT = "determinant",
+    ROWVECTOR = "rowvector",
+    BINOMIAL = "binomial",
+    SQUAREMATRIX = "squarematrix",
+    CYCLE = "cycle",
+    MULTILINE = "multiline",
+    MATRIX = "matrix",
+    VECTOR = "vector",
+    CASES = "cases",
+    TABLE = "table",
+    CAYLEY = "cayley",
+    PROOF = "proof",
+    LEFT = "left",
+    RIGHT = "right",
+    UP = "up",
+    DOWN = "down",
+    FINAL = "final",
+    SINGLE = "single",
+    HYP = "hyp",
+    AXIOM = "axiom",
+    LOGIC = "logic",
+    UNKNOWN = "unknown",
+    MGLYPH = "mglyph"
+}
+export type SemanticRole = Roles;
+export declare const SemanticRole: {
+    COMMA: Roles.COMMA;
+    SEMICOLON: Roles.SEMICOLON;
+    ELLIPSIS: Roles.ELLIPSIS;
+    FULLSTOP: Roles.FULLSTOP;
+    QUESTION: Roles.QUESTION;
+    EXCLAMATION: Roles.EXCLAMATION;
+    QUOTES: Roles.QUOTES;
+    DASH: Roles.DASH;
+    TILDE: Roles.TILDE;
+    PRIME: Roles.PRIME;
+    DEGREE: Roles.DEGREE;
+    VBAR: Roles.VBAR;
+    COLON: Roles.COLON;
+    OPENFENCE: Roles.OPENFENCE;
+    CLOSEFENCE: Roles.CLOSEFENCE;
+    APPLICATION: Roles.APPLICATION;
+    DUMMY: Roles.DUMMY;
+    UNIT: Roles.UNIT;
+    LABEL: Roles.LABEL;
+    OPEN: Roles.OPEN;
+    CLOSE: Roles.CLOSE;
+    TOP: Roles.TOP;
+    BOTTOM: Roles.BOTTOM;
+    NEUTRAL: Roles.NEUTRAL;
+    METRIC: Roles.METRIC;
+    LATINLETTER: Roles.LATINLETTER;
+    GREEKLETTER: Roles.GREEKLETTER;
+    OTHERLETTER: Roles.OTHERLETTER;
+    NUMBERSET: Roles.NUMBERSET;
+    INTEGER: Roles.INTEGER;
+    FLOAT: Roles.FLOAT;
+    OTHERNUMBER: Roles.OTHERNUMBER;
+    INFTY: Roles.INFTY;
+    MIXED: Roles.MIXED;
+    MULTIACCENT: Roles.MULTIACCENT;
+    OVERACCENT: Roles.OVERACCENT;
+    UNDERACCENT: Roles.UNDERACCENT;
+    UNDEROVER: Roles.UNDEROVER;
+    SUBSUP: Roles.SUBSUP;
+    LEFTSUB: Roles.LEFTSUB;
+    LEFTSUPER: Roles.LEFTSUPER;
+    RIGHTSUB: Roles.RIGHTSUB;
+    RIGHTSUPER: Roles.RIGHTSUPER;
+    LEFTRIGHT: Roles.LEFTRIGHT;
+    ABOVEBELOW: Roles.ABOVEBELOW;
+    SETEMPTY: Roles.SETEMPTY;
+    SETEXT: Roles.SETEXT;
+    SETSINGLE: Roles.SETSINGLE;
+    SETCOLLECT: Roles.SETCOLLECT;
+    STRING: Roles.STRING;
+    SPACE: Roles.SPACE;
+    ANNOTATION: Roles.ANNOTATION;
+    TEXT: Roles.TEXT;
+    SEQUENCE: Roles.SEQUENCE;
+    ENDPUNCT: Roles.ENDPUNCT;
+    STARTPUNCT: Roles.STARTPUNCT;
+    NEGATIVE: Roles.NEGATIVE;
+    POSITIVE: Roles.POSITIVE;
+    NEGATION: Roles.NEGATION;
+    MULTIOP: Roles.MULTIOP;
+    PREFIXOP: Roles.PREFIXOP;
+    POSTFIXOP: Roles.POSTFIXOP;
+    LIMFUNC: Roles.LIMFUNC;
+    INFIXFUNC: Roles.INFIXFUNC;
+    PREFIXFUNC: Roles.PREFIXFUNC;
+    POSTFIXFUNC: Roles.POSTFIXFUNC;
+    SIMPLEFUNC: Roles.SIMPLEFUNC;
+    COMPFUNC: Roles.COMPFUNC;
+    SUM: Roles.SUM;
+    INTEGRAL: Roles.INTEGRAL;
+    GEOMETRY: Roles.GEOMETRY;
+    BOX: Roles.BOX;
+    BLOCK: Roles.BLOCK;
+    ADDITION: Roles.ADDITION;
+    MULTIPLICATION: Roles.MULTIPLICATION;
+    SUBTRACTION: Roles.SUBTRACTION;
+    IMPLICIT: Roles.IMPLICIT;
+    DIVISION: Roles.DIVISION;
+    VULGAR: Roles.VULGAR;
+    EQUALITY: Roles.EQUALITY;
+    INEQUALITY: Roles.INEQUALITY;
+    ARROW: Roles.ARROW;
+    ELEMENT: Roles.ELEMENT;
+    NONELEMENT: Roles.NONELEMENT;
+    REELEMENT: Roles.REELEMENT;
+    RENONELEMENT: Roles.RENONELEMENT;
+    SET: Roles.SET;
+    DETERMINANT: Roles.DETERMINANT;
+    ROWVECTOR: Roles.ROWVECTOR;
+    BINOMIAL: Roles.BINOMIAL;
+    SQUAREMATRIX: Roles.SQUAREMATRIX;
+    CYCLE: Roles.CYCLE;
+    MULTILINE: Roles.MULTILINE;
+    MATRIX: Roles.MATRIX;
+    VECTOR: Roles.VECTOR;
+    CASES: Roles.CASES;
+    TABLE: Roles.TABLE;
+    CAYLEY: Roles.CAYLEY;
+    PROOF: Roles.PROOF;
+    LEFT: Roles.LEFT;
+    RIGHT: Roles.RIGHT;
+    UP: Roles.UP;
+    DOWN: Roles.DOWN;
+    FINAL: Roles.FINAL;
+    SINGLE: Roles.SINGLE;
+    HYP: Roles.HYP;
+    AXIOM: Roles.AXIOM;
+    LOGIC: Roles.LOGIC;
+    UNKNOWN: Roles.UNKNOWN;
+    MGLYPH: Roles.MGLYPH;
+};
+declare enum ExtraFont {
+    CALIGRAPHIC = "caligraphic",
+    CALIGRAPHICBOLD = "caligraphic-bold",
+    OLDSTYLE = "oldstyle",
+    OLDSTYLEBOLD = "oldstyle-bold",
+    UNKNOWN = "unknown"
+}
+export type SemanticFont = Alphabet.Font | ExtraFont | Alphabet.Embellish;
+export declare const SemanticFont: {
+    SUPER: Alphabet.Embellish.SUPER;
+    SUB: Alphabet.Embellish.SUB;
+    CIRCLED: Alphabet.Embellish.CIRCLED;
+    PARENTHESIZED: Alphabet.Embellish.PARENTHESIZED;
+    PERIOD: Alphabet.Embellish.PERIOD;
+    NEGATIVECIRCLED: Alphabet.Embellish.NEGATIVECIRCLED;
+    DOUBLECIRCLED: Alphabet.Embellish.DOUBLECIRCLED;
+    CIRCLEDSANSSERIF: Alphabet.Embellish.CIRCLEDSANSSERIF;
+    NEGATIVECIRCLEDSANSSERIF: Alphabet.Embellish.NEGATIVECIRCLEDSANSSERIF;
+    COMMA: Alphabet.Embellish.COMMA;
+    SQUARED: Alphabet.Embellish.SQUARED;
+    NEGATIVESQUARED: Alphabet.Embellish.NEGATIVESQUARED;
+    CALIGRAPHIC: ExtraFont.CALIGRAPHIC;
+    CALIGRAPHICBOLD: ExtraFont.CALIGRAPHICBOLD;
+    OLDSTYLE: ExtraFont.OLDSTYLE;
+    OLDSTYLEBOLD: ExtraFont.OLDSTYLEBOLD;
+    UNKNOWN: ExtraFont.UNKNOWN;
+    BOLD: Alphabet.Font.BOLD;
+    BOLDFRAKTUR: Alphabet.Font.BOLDFRAKTUR;
+    BOLDITALIC: Alphabet.Font.BOLDITALIC;
+    BOLDSCRIPT: Alphabet.Font.BOLDSCRIPT;
+    DOUBLESTRUCK: Alphabet.Font.DOUBLESTRUCK;
+    DOUBLESTRUCKITALIC: Alphabet.Font.DOUBLESTRUCKITALIC;
+    FULLWIDTH: Alphabet.Font.FULLWIDTH;
+    FRAKTUR: Alphabet.Font.FRAKTUR;
+    ITALIC: Alphabet.Font.ITALIC;
+    MONOSPACE: Alphabet.Font.MONOSPACE;
+    NORMAL: Alphabet.Font.NORMAL;
+    SCRIPT: Alphabet.Font.SCRIPT;
+    SANSSERIF: Alphabet.Font.SANSSERIF;
+    SANSSERIFITALIC: Alphabet.Font.SANSSERIFITALIC;
+    SANSSERIFBOLD: Alphabet.Font.SANSSERIFBOLD;
+    SANSSERIFBOLDITALIC: Alphabet.Font.SANSSERIFBOLDITALIC;
+};
+declare enum SecondaryEnum {
+    ALLLETTERS = "allLetters",
+    D = "d",
+    BAR = "bar",
+    TILDE = "tilde"
+}
+export type SemanticSecondary = Alphabet.Base | SecondaryEnum;
+export declare const SemanticSecondary: {
+    ALLLETTERS: SecondaryEnum.ALLLETTERS;
+    D: SecondaryEnum.D;
+    BAR: SecondaryEnum.BAR;
+    TILDE: SecondaryEnum.TILDE;
+    LATINCAP: Alphabet.Base.LATINCAP;
+    LATINSMALL: Alphabet.Base.LATINSMALL;
+    GREEKCAP: Alphabet.Base.GREEKCAP;
+    GREEKSMALL: Alphabet.Base.GREEKSMALL;
+    DIGIT: Alphabet.Base.DIGIT;
+};
+export {};

node_modules/speech-rule-engine/js/semantic_tree/semantic_meaning.js

@@ -0,0 +1,185 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticSecondary = exports.SemanticFont = exports.SemanticRole = exports.SemanticType = void 0;
+const Alphabet = require("../speech_rules/alphabet.js");
+var Types;
+(function (Types) {
+    Types["PUNCTUATION"] = "punctuation";
+    Types["FENCE"] = "fence";
+    Types["NUMBER"] = "number";
+    Types["IDENTIFIER"] = "identifier";
+    Types["TEXT"] = "text";
+    Types["OPERATOR"] = "operator";
+    Types["RELATION"] = "relation";
+    Types["LARGEOP"] = "largeop";
+    Types["FUNCTION"] = "function";
+    Types["ACCENT"] = "accent";
+    Types["FENCED"] = "fenced";
+    Types["FRACTION"] = "fraction";
+    Types["PUNCTUATED"] = "punctuated";
+    Types["RELSEQ"] = "relseq";
+    Types["MULTIREL"] = "multirel";
+    Types["INFIXOP"] = "infixop";
+    Types["PREFIXOP"] = "prefixop";
+    Types["POSTFIXOP"] = "postfixop";
+    Types["APPL"] = "appl";
+    Types["INTEGRAL"] = "integral";
+    Types["BIGOP"] = "bigop";
+    Types["SQRT"] = "sqrt";
+    Types["ROOT"] = "root";
+    Types["LIMUPPER"] = "limupper";
+    Types["LIMLOWER"] = "limlower";
+    Types["LIMBOTH"] = "limboth";
+    Types["SUBSCRIPT"] = "subscript";
+    Types["SUPERSCRIPT"] = "superscript";
+    Types["UNDERSCORE"] = "underscore";
+    Types["OVERSCORE"] = "overscore";
+    Types["TENSOR"] = "tensor";
+    Types["TABLE"] = "table";
+    Types["MULTILINE"] = "multiline";
+    Types["MATRIX"] = "matrix";
+    Types["VECTOR"] = "vector";
+    Types["CASES"] = "cases";
+    Types["ROW"] = "row";
+    Types["LINE"] = "line";
+    Types["CELL"] = "cell";
+    Types["ENCLOSE"] = "enclose";
+    Types["INFERENCE"] = "inference";
+    Types["RULELABEL"] = "rulelabel";
+    Types["CONCLUSION"] = "conclusion";
+    Types["PREMISES"] = "premises";
+    Types["UNKNOWN"] = "unknown";
+    Types["EMPTY"] = "empty";
+})(Types || (Types = {}));
+exports.SemanticType = Object.assign({}, Types);
+var Roles;
+(function (Roles) {
+    Roles["COMMA"] = "comma";
+    Roles["SEMICOLON"] = "semicolon";
+    Roles["ELLIPSIS"] = "ellipsis";
+    Roles["FULLSTOP"] = "fullstop";
+    Roles["QUESTION"] = "question";
+    Roles["EXCLAMATION"] = "exclamation";
+    Roles["QUOTES"] = "quotes";
+    Roles["DASH"] = "dash";
+    Roles["TILDE"] = "tilde";
+    Roles["PRIME"] = "prime";
+    Roles["DEGREE"] = "degree";
+    Roles["VBAR"] = "vbar";
+    Roles["COLON"] = "colon";
+    Roles["OPENFENCE"] = "openfence";
+    Roles["CLOSEFENCE"] = "closefence";
+    Roles["APPLICATION"] = "application";
+    Roles["DUMMY"] = "dummy";
+    Roles["UNIT"] = "unit";
+    Roles["LABEL"] = "label";
+    Roles["OPEN"] = "open";
+    Roles["CLOSE"] = "close";
+    Roles["TOP"] = "top";
+    Roles["BOTTOM"] = "bottom";
+    Roles["NEUTRAL"] = "neutral";
+    Roles["METRIC"] = "metric";
+    Roles["LATINLETTER"] = "latinletter";
+    Roles["GREEKLETTER"] = "greekletter";
+    Roles["OTHERLETTER"] = "otherletter";
+    Roles["NUMBERSET"] = "numbersetletter";
+    Roles["INTEGER"] = "integer";
+    Roles["FLOAT"] = "float";
+    Roles["OTHERNUMBER"] = "othernumber";
+    Roles["INFTY"] = "infty";
+    Roles["MIXED"] = "mixed";
+    Roles["MULTIACCENT"] = "multiaccent";
+    Roles["OVERACCENT"] = "overaccent";
+    Roles["UNDERACCENT"] = "underaccent";
+    Roles["UNDEROVER"] = "underover";
+    Roles["SUBSUP"] = "subsup";
+    Roles["LEFTSUB"] = "leftsub";
+    Roles["LEFTSUPER"] = "leftsuper";
+    Roles["RIGHTSUB"] = "rightsub";
+    Roles["RIGHTSUPER"] = "rightsuper";
+    Roles["LEFTRIGHT"] = "leftright";
+    Roles["ABOVEBELOW"] = "abovebelow";
+    Roles["SETEMPTY"] = "set empty";
+    Roles["SETEXT"] = "set extended";
+    Roles["SETSINGLE"] = "set singleton";
+    Roles["SETCOLLECT"] = "set collection";
+    Roles["STRING"] = "string";
+    Roles["SPACE"] = "space";
+    Roles["ANNOTATION"] = "annotation";
+    Roles["TEXT"] = "text";
+    Roles["SEQUENCE"] = "sequence";
+    Roles["ENDPUNCT"] = "endpunct";
+    Roles["STARTPUNCT"] = "startpunct";
+    Roles["NEGATIVE"] = "negative";
+    Roles["POSITIVE"] = "positive";
+    Roles["NEGATION"] = "negation";
+    Roles["MULTIOP"] = "multiop";
+    Roles["PREFIXOP"] = "prefix operator";
+    Roles["POSTFIXOP"] = "postfix operator";
+    Roles["LIMFUNC"] = "limit function";
+    Roles["INFIXFUNC"] = "infix function";
+    Roles["PREFIXFUNC"] = "prefix function";
+    Roles["POSTFIXFUNC"] = "postfix function";
+    Roles["SIMPLEFUNC"] = "simple function";
+    Roles["COMPFUNC"] = "composed function";
+    Roles["SUM"] = "sum";
+    Roles["INTEGRAL"] = "integral";
+    Roles["GEOMETRY"] = "geometry";
+    Roles["BOX"] = "box";
+    Roles["BLOCK"] = "block";
+    Roles["ADDITION"] = "addition";
+    Roles["MULTIPLICATION"] = "multiplication";
+    Roles["SUBTRACTION"] = "subtraction";
+    Roles["IMPLICIT"] = "implicit";
+    Roles["DIVISION"] = "division";
+    Roles["VULGAR"] = "vulgar";
+    Roles["EQUALITY"] = "equality";
+    Roles["INEQUALITY"] = "inequality";
+    Roles["ARROW"] = "arrow";
+    Roles["ELEMENT"] = "element";
+    Roles["NONELEMENT"] = "nonelement";
+    Roles["REELEMENT"] = "reelement";
+    Roles["RENONELEMENT"] = "renonelement";
+    Roles["SET"] = "set";
+    Roles["DETERMINANT"] = "determinant";
+    Roles["ROWVECTOR"] = "rowvector";
+    Roles["BINOMIAL"] = "binomial";
+    Roles["SQUAREMATRIX"] = "squarematrix";
+    Roles["CYCLE"] = "cycle";
+    Roles["MULTILINE"] = "multiline";
+    Roles["MATRIX"] = "matrix";
+    Roles["VECTOR"] = "vector";
+    Roles["CASES"] = "cases";
+    Roles["TABLE"] = "table";
+    Roles["CAYLEY"] = "cayley";
+    Roles["PROOF"] = "proof";
+    Roles["LEFT"] = "left";
+    Roles["RIGHT"] = "right";
+    Roles["UP"] = "up";
+    Roles["DOWN"] = "down";
+    Roles["FINAL"] = "final";
+    Roles["SINGLE"] = "single";
+    Roles["HYP"] = "hyp";
+    Roles["AXIOM"] = "axiom";
+    Roles["LOGIC"] = "logic";
+    Roles["UNKNOWN"] = "unknown";
+    Roles["MGLYPH"] = "mglyph";
+})(Roles || (Roles = {}));
+exports.SemanticRole = Object.assign({}, Roles);
+var ExtraFont;
+(function (ExtraFont) {
+    ExtraFont["CALIGRAPHIC"] = "caligraphic";
+    ExtraFont["CALIGRAPHICBOLD"] = "caligraphic-bold";
+    ExtraFont["OLDSTYLE"] = "oldstyle";
+    ExtraFont["OLDSTYLEBOLD"] = "oldstyle-bold";
+    ExtraFont["UNKNOWN"] = "unknown";
+})(ExtraFont || (ExtraFont = {}));
+exports.SemanticFont = Object.assign(Object.assign(Object.assign({}, Alphabet.Font), ExtraFont), Alphabet.Embellish);
+var SecondaryEnum;
+(function (SecondaryEnum) {
+    SecondaryEnum["ALLLETTERS"] = "allLetters";
+    SecondaryEnum["D"] = "d";
+    SecondaryEnum["BAR"] = "bar";
+    SecondaryEnum["TILDE"] = "tilde";
+})(SecondaryEnum || (SecondaryEnum = {}));
+exports.SemanticSecondary = Object.assign(Object.assign({}, Alphabet.Base), SecondaryEnum);

node_modules/speech-rule-engine/js/semantic_tree/semantic_node.d.ts

@@ -0,0 +1,67 @@
+import { SemanticMeaning, SemanticFont, SemanticRole, SemanticType } from './semantic_meaning.js';
+declare const enum Attribute {
+    EMBELLISHED = "embellished",
+    FENCEPOINTER = "fencepointer",
+    FONT = "font",
+    ID = "id",
+    ANNOTATION = "annotation",
+    ROLE = "role",
+    TYPE = "type",
+    CHILDREN = "children",
+    CONTENT = "content",
+    TEXT = "$t"
+}
+export declare class SemanticNode {
+    id: number;
+    mathml: Element[];
+    parent: SemanticNode;
+    type: SemanticType;
+    role: SemanticRole;
+    font: SemanticFont;
+    embellished: SemanticType;
+    fencePointer: string;
+    childNodes: SemanticNode[];
+    textContent: string;
+    mathmlTree: Element;
+    contentNodes: SemanticNode[];
+    annotation: {
+        [key: string]: string[];
+    };
+    attributes: {
+        [key: string]: string;
+    };
+    nobreaking: boolean;
+    static fromXml(xml: Element): SemanticNode;
+    private static setAttribute;
+    private static processChildren;
+    constructor(id: number);
+    querySelectorAll(pred: (p1: SemanticNode) => boolean): SemanticNode[];
+    xml(xml: Document, brief?: boolean): Element;
+    toString(brief?: boolean): string;
+    allAttributes(): [Attribute, string][];
+    private annotationXml;
+    attributesXml(): string;
+    toJson(): any;
+    updateContent(content: string, text?: boolean): void;
+    addMathmlNodes(mmlNodes: Element[]): void;
+    appendChild(child: SemanticNode): void;
+    replaceChild(oldNode: SemanticNode, newNode: SemanticNode): void;
+    appendContentNode(node: SemanticNode): void;
+    removeContentNode(node: SemanticNode): void;
+    equals(node: SemanticNode): boolean;
+    displayTree(): void;
+    addAnnotation(domain: string, annotation: string): void;
+    getAnnotation(domain: string): string[];
+    hasAnnotation(domain: string, annotation: string): boolean;
+    parseAnnotation(stateStr: string): void;
+    meaning(): SemanticMeaning;
+    private xmlAttributes;
+    private addExternalAttributes;
+    private static escapeValue;
+    parseAttributes(stateStr: string): void;
+    private removeMathmlNodes;
+    private displayTree_;
+    private mathmlTreeString;
+    private addAnnotation_;
+}
+export {};

node_modules/speech-rule-engine/js/semantic_tree/semantic_node.js

@@ -0,0 +1,343 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticNode = void 0;
+const DomUtil = require("../common/dom_util.js");
+const semantic_attr_js_1 = require("./semantic_attr.js");
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const SemanticUtil = require("./semantic_util.js");
+class SemanticNode {
+    static fromXml(xml) {
+        const id = parseInt(xml.getAttribute('id'), 10);
+        const node = new SemanticNode(id);
+        node.type = xml.tagName;
+        SemanticNode.setAttribute(node, xml, 'role');
+        SemanticNode.setAttribute(node, xml, 'font');
+        SemanticNode.setAttribute(node, xml, 'embellished');
+        SemanticNode.setAttribute(node, xml, 'fencepointer', 'fencePointer');
+        if (xml.getAttribute('annotation')) {
+            node.parseAnnotation(xml.getAttribute('annotation'));
+        }
+        SemanticUtil.addAttributes(node, xml);
+        SemanticNode.processChildren(node, xml);
+        return node;
+    }
+    static setAttribute(node, xml, attribute, opt_name) {
+        opt_name = opt_name || attribute;
+        const value = xml.getAttribute(attribute);
+        if (value) {
+            node[opt_name] = value;
+        }
+    }
+    static processChildren(node, xml) {
+        for (const child of DomUtil.toArray(xml.childNodes)) {
+            if (child.nodeType === DomUtil.NodeType.TEXT_NODE) {
+                node.textContent = child.textContent;
+                continue;
+            }
+            const children = DomUtil.toArray(child.childNodes).map(SemanticNode.fromXml);
+            children.forEach((x) => (x.parent = node));
+            if (DomUtil.tagName(child) === 'CONTENT') {
+                node.contentNodes = children;
+            }
+            else {
+                node.childNodes = children;
+            }
+        }
+    }
+    constructor(id) {
+        this.id = id;
+        this.mathml = [];
+        this.parent = null;
+        this.type = semantic_meaning_js_1.SemanticType.UNKNOWN;
+        this.role = semantic_meaning_js_1.SemanticRole.UNKNOWN;
+        this.font = semantic_meaning_js_1.SemanticFont.UNKNOWN;
+        this.embellished = null;
+        this.fencePointer = '';
+        this.childNodes = [];
+        this.textContent = '';
+        this.mathmlTree = null;
+        this.contentNodes = [];
+        this.annotation = {};
+        this.attributes = {};
+        this.nobreaking = false;
+    }
+    querySelectorAll(pred) {
+        let result = [];
+        for (let i = 0, child; (child = this.childNodes[i]); i++) {
+            result = result.concat(child.querySelectorAll(pred));
+        }
+        for (let i = 0, content; (content = this.contentNodes[i]); i++) {
+            result = result.concat(content.querySelectorAll(pred));
+        }
+        if (pred(this)) {
+            result.unshift(this);
+        }
+        return result;
+    }
+    xml(xml, brief) {
+        const xmlNodeList = function (tag, nodes) {
+            const xmlNodes = nodes.map(function (x) {
+                return x.xml(xml, brief);
+            });
+            const tagNode = xml.createElementNS('', tag);
+            for (let i = 0, child; (child = xmlNodes[i]); i++) {
+                tagNode.appendChild(child);
+            }
+            return tagNode;
+        };
+        const node = xml.createElementNS('', this.type);
+        if (!brief) {
+            this.xmlAttributes(node);
+        }
+        node.textContent = this.textContent;
+        if (this.contentNodes.length > 0) {
+            node.appendChild(xmlNodeList("content", this.contentNodes));
+        }
+        if (this.childNodes.length > 0) {
+            node.appendChild(xmlNodeList("children", this.childNodes));
+        }
+        return node;
+    }
+    toString(brief = false) {
+        const xml = DomUtil.parseInput('<snode/>');
+        return DomUtil.serializeXml(this.xml(xml.ownerDocument, brief));
+    }
+    allAttributes() {
+        const attributes = [];
+        attributes.push(["role", this.role]);
+        if (this.font !== semantic_meaning_js_1.SemanticFont.UNKNOWN) {
+            attributes.push(["font", this.font]);
+        }
+        if (Object.keys(this.annotation).length) {
+            attributes.push(["annotation", this.annotationXml()]);
+        }
+        if (this.embellished) {
+            attributes.push(["embellished", this.embellished]);
+        }
+        if (this.fencePointer) {
+            attributes.push(["fencepointer", this.fencePointer]);
+        }
+        attributes.push(["id", this.id.toString()]);
+        return attributes;
+    }
+    annotationXml() {
+        const result = [];
+        for (const [key, val] of Object.entries(this.annotation)) {
+            val.forEach((mean) => result.push(key + ':' + mean));
+        }
+        return result.join(';');
+    }
+    attributesXml() {
+        const result = [];
+        for (const [key, value] of Object.entries(this.attributes)) {
+            result.push(key + ':' + SemanticNode.escapeValue(value));
+        }
+        return result.join(';');
+    }
+    toJson() {
+        const json = {};
+        json["type"] = this.type;
+        const attributes = this.allAttributes();
+        for (let i = 0, attr; (attr = attributes[i]); i++) {
+            json[attr[0]] = attr[1].toString();
+        }
+        if (this.textContent) {
+            json["$t"] = this.textContent;
+        }
+        if (this.childNodes.length) {
+            json["children"] = this.childNodes.map(function (child) {
+                return child.toJson();
+            });
+        }
+        if (this.contentNodes.length) {
+            json["content"] = this.contentNodes.map(function (child) {
+                return child.toJson();
+            });
+        }
+        return json;
+    }
+    updateContent(content, text) {
+        const newContent = text
+            ? content
+                .replace(/^[ \f\n\r\t\v\u200b]*/, '')
+                .replace(/[ \f\n\r\t\v\u200b]*$/, '')
+            : content.trim();
+        content = content && !newContent ? content : newContent;
+        if (this.textContent === content) {
+            return;
+        }
+        const meaning = semantic_attr_js_1.SemanticMap.Meaning.get(content.replace(/\s/g, ' '));
+        this.textContent = content;
+        this.role = meaning.role;
+        this.type = meaning.type;
+        this.font = meaning.font;
+    }
+    addMathmlNodes(mmlNodes) {
+        for (let i = 0, mml; (mml = mmlNodes[i]); i++) {
+            if (this.mathml.indexOf(mml) === -1) {
+                this.mathml.push(mml);
+            }
+        }
+    }
+    appendChild(child) {
+        this.childNodes.push(child);
+        this.addMathmlNodes(child.mathml);
+        child.parent = this;
+    }
+    replaceChild(oldNode, newNode) {
+        const index = this.childNodes.indexOf(oldNode);
+        if (index === -1) {
+            return;
+        }
+        oldNode.parent = null;
+        newNode.parent = this;
+        this.childNodes[index] = newNode;
+        const removeMathml = oldNode.mathml.filter(function (x) {
+            return newNode.mathml.indexOf(x) === -1;
+        });
+        const addMathml = newNode.mathml.filter(function (x) {
+            return oldNode.mathml.indexOf(x) === -1;
+        });
+        this.removeMathmlNodes(removeMathml);
+        this.addMathmlNodes(addMathml);
+    }
+    appendContentNode(node) {
+        if (node) {
+            this.contentNodes.push(node);
+            this.addMathmlNodes(node.mathml);
+            node.parent = this;
+        }
+    }
+    removeContentNode(node) {
+        if (node) {
+            const index = this.contentNodes.indexOf(node);
+            if (index !== -1) {
+                this.contentNodes.slice(index, 1);
+            }
+        }
+    }
+    equals(node) {
+        if (!node) {
+            return false;
+        }
+        if (this.type !== node.type ||
+            this.role !== node.role ||
+            this.textContent !== node.textContent ||
+            this.childNodes.length !== node.childNodes.length ||
+            this.contentNodes.length !== node.contentNodes.length) {
+            return false;
+        }
+        for (let i = 0, node1, node2; (node1 = this.childNodes[i]), (node2 = node.childNodes[i]); i++) {
+            if (!node1.equals(node2)) {
+                return false;
+            }
+        }
+        for (let i = 0, node1, node2; (node1 = this.contentNodes[i]), (node2 = node.contentNodes[i]); i++) {
+            if (!node1.equals(node2)) {
+                return false;
+            }
+        }
+        return true;
+    }
+    displayTree() {
+        console.info(this.displayTree_(0));
+    }
+    addAnnotation(domain, annotation) {
+        if (annotation) {
+            this.addAnnotation_(domain, annotation);
+        }
+    }
+    getAnnotation(domain) {
+        const content = this.annotation[domain];
+        return content ? content : [];
+    }
+    hasAnnotation(domain, annotation) {
+        const content = this.annotation[domain];
+        if (!content) {
+            return false;
+        }
+        return content.indexOf(annotation) !== -1;
+    }
+    parseAnnotation(stateStr) {
+        const annotations = stateStr.split(';');
+        for (let i = 0, l = annotations.length; i < l; i++) {
+            const annotation = annotations[i].split(':');
+            this.addAnnotation(annotation[0], annotation[1]);
+        }
+    }
+    meaning() {
+        return { type: this.type, role: this.role, font: this.font };
+    }
+    xmlAttributes(node) {
+        const attributes = this.allAttributes();
+        for (let i = 0, attr; (attr = attributes[i]); i++) {
+            node.setAttribute(attr[0], attr[1]);
+        }
+        this.addExternalAttributes(node);
+    }
+    addExternalAttributes(node) {
+        for (const [attr, val] of Object.entries(this.attributes)) {
+            node.setAttribute(attr, val);
+        }
+    }
+    static escapeValue(value) {
+        return value.replace(/;/g, '\\0003B');
+    }
+    parseAttributes(stateStr) {
+        if (!stateStr)
+            return;
+        const attributes = stateStr.split(';');
+        for (let i = 0, l = attributes.length; i < l; i++) {
+            const [key, ...values] = attributes[i].split(':');
+            if (key) {
+                this.attributes[key] = values.join('').replace(/\\0003B/g, ';');
+            }
+        }
+    }
+    removeMathmlNodes(mmlNodes) {
+        const mmlList = this.mathml;
+        for (let i = 0, mml; (mml = mmlNodes[i]); i++) {
+            const index = mmlList.indexOf(mml);
+            if (index !== -1) {
+                mmlList.splice(index, 1);
+            }
+        }
+        this.mathml = mmlList;
+    }
+    displayTree_(depth) {
+        depth++;
+        const depthString = Array(depth).join('  ');
+        let result = '';
+        result += '\n' + depthString + this.toString();
+        result += '\n' + depthString + 'MathmlTree:';
+        result += '\n' + depthString + this.mathmlTreeString();
+        result += '\n' + depthString + 'MathML:';
+        for (let i = 0, mml; (mml = this.mathml[i]); i++) {
+            result += '\n' + depthString + mml.toString();
+        }
+        result += '\n' + depthString + 'Begin Content';
+        this.contentNodes.forEach(function (x) {
+            result += x.displayTree_(depth);
+        });
+        result += '\n' + depthString + 'End Content';
+        result += '\n' + depthString + 'Begin Children';
+        this.childNodes.forEach(function (x) {
+            result += x.displayTree_(depth);
+        });
+        result += '\n' + depthString + 'End Children';
+        return result;
+    }
+    mathmlTreeString() {
+        return this.mathmlTree ? this.mathmlTree.toString() : 'EMPTY';
+    }
+    addAnnotation_(domain, annotation) {
+        const content = this.annotation[domain];
+        if (content && !content.includes(annotation)) {
+            content.push(annotation);
+        }
+        else {
+            this.annotation[domain] = [annotation];
+        }
+    }
+}
+exports.SemanticNode = SemanticNode;

node_modules/speech-rule-engine/js/semantic_tree/semantic_node_factory.d.ts

@@ -0,0 +1,17 @@
+import { SemanticFont, SemanticType } from './semantic_meaning.js';
+import { SemanticDefault } from './semantic_default.js';
+import { SemanticNodeCollator } from './semantic_default.js';
+import { SemanticNode } from './semantic_node.js';
+export declare class SemanticNodeFactory {
+    leafMap: SemanticNodeCollator;
+    defaultMap: SemanticDefault;
+    private idCounter_;
+    makeNode(id: number): SemanticNode;
+    makeUnprocessed(mml: Element): SemanticNode;
+    makeEmptyNode(): SemanticNode;
+    makeContentNode(content: string): SemanticNode;
+    makeMultipleContentNodes(num: number, content: string): SemanticNode[];
+    makeLeafNode(content: string, font: SemanticFont): SemanticNode;
+    makeBranchNode(type: SemanticType, children: SemanticNode[], contentNodes: SemanticNode[], opt_content?: string): SemanticNode;
+    private createNode_;
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_node_factory.js

@@ -0,0 +1,79 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticNodeFactory = void 0;
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const semantic_default_js_1 = require("./semantic_default.js");
+const semantic_default_js_2 = require("./semantic_default.js");
+const semantic_node_js_1 = require("./semantic_node.js");
+class SemanticNodeFactory {
+    constructor() {
+        this.leafMap = new semantic_default_js_2.SemanticNodeCollator();
+        this.defaultMap = new semantic_default_js_1.SemanticDefault();
+        this.idCounter_ = -1;
+    }
+    makeNode(id) {
+        return this.createNode_(id);
+    }
+    makeUnprocessed(mml) {
+        const node = this.createNode_();
+        node.mathml = [mml];
+        node.mathmlTree = mml;
+        return node;
+    }
+    makeEmptyNode() {
+        const node = this.createNode_();
+        node.type = semantic_meaning_js_1.SemanticType.EMPTY;
+        return node;
+    }
+    makeContentNode(content) {
+        const node = this.createNode_();
+        node.updateContent(content);
+        return node;
+    }
+    makeMultipleContentNodes(num, content) {
+        const nodes = [];
+        for (let i = 0; i < num; i++) {
+            nodes.push(this.makeContentNode(content));
+        }
+        return nodes;
+    }
+    makeLeafNode(content, font) {
+        if (!content) {
+            return this.makeEmptyNode();
+        }
+        const node = this.makeContentNode(content);
+        node.font = font || node.font;
+        const meaning = this.defaultMap.getNode(node);
+        if (meaning) {
+            node.type = meaning.type;
+            node.role = meaning.role;
+            node.font = meaning.font;
+        }
+        this.leafMap.addNode(node);
+        return node;
+    }
+    makeBranchNode(type, children, contentNodes, opt_content) {
+        const node = this.createNode_();
+        if (opt_content) {
+            node.updateContent(opt_content);
+        }
+        node.type = type;
+        node.childNodes = children;
+        node.contentNodes = contentNodes;
+        children.concat(contentNodes).forEach(function (x) {
+            x.parent = node;
+            node.addMathmlNodes(x.mathml);
+        });
+        return node;
+    }
+    createNode_(id) {
+        if (typeof id !== 'undefined') {
+            this.idCounter_ = Math.max(this.idCounter_, id);
+        }
+        else {
+            id = ++this.idCounter_;
+        }
+        return new semantic_node_js_1.SemanticNode(id);
+    }
+}
+exports.SemanticNodeFactory = SemanticNodeFactory;

node_modules/speech-rule-engine/js/semantic_tree/semantic_ordering.d.ts

@@ -0,0 +1,2 @@
+import { SemanticMeaning } from './semantic_meaning.js';
+export declare function reduce(meanings: SemanticMeaning[]): SemanticMeaning[];

node_modules/speech-rule-engine/js/semantic_tree/semantic_ordering.js

@@ -0,0 +1,58 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.reduce = reduce;
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const comparators = [];
+function add(comparator) {
+    comparators.push(comparator);
+}
+function apply(meaning1, meaning2) {
+    for (let i = 0, comparator; (comparator = comparators[i]); i++) {
+        const result = comparator.compare(meaning1, meaning2);
+        if (result !== 0) {
+            return result;
+        }
+    }
+    return 0;
+}
+function sort(meanings) {
+    meanings.sort(apply);
+}
+function reduce(meanings) {
+    if (meanings.length <= 1) {
+        return meanings;
+    }
+    const copy = meanings.slice();
+    sort(copy);
+    const result = [];
+    let last;
+    do {
+        last = copy.pop();
+        result.push(last);
+    } while (last && copy.length && apply(copy[copy.length - 1], last) === 0);
+    return result;
+}
+class SemanticComparator {
+    constructor(comparator, type = null) {
+        this.comparator = comparator;
+        this.type = type;
+        add(this);
+    }
+    compare(meaning1, meaning2) {
+        return this.type &&
+            this.type === meaning1.type &&
+            this.type === meaning2.type
+            ? this.comparator(meaning1, meaning2)
+            : 0;
+    }
+}
+function simpleFunction(meaning1, meaning2) {
+    if (meaning1.role === semantic_meaning_js_1.SemanticRole.SIMPLEFUNC) {
+        return 1;
+    }
+    if (meaning2.role === semantic_meaning_js_1.SemanticRole.SIMPLEFUNC) {
+        return -1;
+    }
+    return 0;
+}
+new SemanticComparator(simpleFunction, semantic_meaning_js_1.SemanticType.IDENTIFIER);

node_modules/speech-rule-engine/js/semantic_tree/semantic_parser.d.ts

@@ -0,0 +1,19 @@
+import { SemanticNode } from './semantic_node.js';
+import { SemanticNodeFactory } from './semantic_node_factory.js';
+export interface SemanticParser<T> {
+    parse(representation: T): SemanticNode;
+    parseList(list: T[]): SemanticNode[];
+    getFactory(): SemanticNodeFactory;
+    setFactory(factory: SemanticNodeFactory): void;
+    getType(): string;
+}
+export declare abstract class SemanticAbstractParser<T> implements SemanticParser<T> {
+    private type;
+    private factory_;
+    constructor(type: string);
+    abstract parse(representation: T): SemanticNode;
+    getFactory(): SemanticNodeFactory;
+    setFactory(factory: SemanticNodeFactory): void;
+    getType(): string;
+    parseList(list: T[]): SemanticNode[];
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_parser.js

@@ -0,0 +1,27 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticAbstractParser = void 0;
+const semantic_node_factory_js_1 = require("./semantic_node_factory.js");
+class SemanticAbstractParser {
+    constructor(type) {
+        this.type = type;
+        this.factory_ = new semantic_node_factory_js_1.SemanticNodeFactory();
+    }
+    getFactory() {
+        return this.factory_;
+    }
+    setFactory(factory) {
+        this.factory_ = factory;
+    }
+    getType() {
+        return this.type;
+    }
+    parseList(list) {
+        const result = [];
+        for (let i = 0, element; (element = list[i]); i++) {
+            result.push(this.parse(element));
+        }
+        return result;
+    }
+}
+exports.SemanticAbstractParser = SemanticAbstractParser;

node_modules/speech-rule-engine/js/semantic_tree/semantic_pred.d.ts

@@ -0,0 +1,40 @@
+import { SemanticRole, SemanticType } from './semantic_meaning.js';
+import { SemanticNode } from './semantic_node.js';
+export declare function isType(node: SemanticNode, attr: SemanticType): boolean;
+export declare function isRole(node: SemanticNode, attr: SemanticRole): boolean;
+export declare function isAccent(node: SemanticNode): boolean;
+export declare function isSimpleFunctionScope(node: SemanticNode): boolean;
+export declare function isPrefixFunctionBoundary(node: SemanticNode): boolean;
+export declare function isBigOpBoundary(node: SemanticNode): boolean;
+export declare function isIntegralDxBoundary(firstNode: SemanticNode, secondNode: SemanticNode): boolean;
+export declare function isIntegralDxBoundarySingle(node: SemanticNode): boolean;
+export declare function isGeneralFunctionBoundary(node: SemanticNode): boolean;
+export declare function isEmbellished(node: SemanticNode): SemanticType | null;
+export declare function isOperator(node: SemanticNode): boolean;
+export declare function isRelation(node: SemanticNode): boolean;
+export declare function isPunctuation(node: SemanticNode): boolean;
+export declare function isFence(node: SemanticNode): boolean;
+export declare function isElligibleEmbellishedFence(node: SemanticNode): boolean;
+export declare function isTableOrMultiline(node: SemanticNode): boolean;
+export declare function tableIsMatrixOrVector(node: SemanticNode): boolean;
+export declare function isFencedElement(node: SemanticNode): boolean;
+export declare function tableIsCases(_table: SemanticNode, prevNodes: SemanticNode[]): boolean;
+export declare function tableIsMultiline(table: SemanticNode): boolean;
+export declare function lineIsLabelled(line: SemanticNode): boolean;
+export declare function isBinomial(table: SemanticNode): boolean;
+export declare function isLimitBase(node: SemanticNode): boolean;
+export declare function isSimpleFunctionHead(node: SemanticNode): boolean;
+export declare function singlePunctAtPosition(nodes: SemanticNode[], puncts: SemanticNode[], position: number): boolean;
+export declare function isSimpleFunction(node: SemanticNode): boolean;
+export declare function isSetNode(node: SemanticNode): boolean;
+export declare function isSingletonSetContent(node: SemanticNode): boolean;
+export declare function isUnitCounter(node: SemanticNode): boolean;
+export declare function isPureUnit(node: SemanticNode): boolean;
+export declare function isUnitProduct(node: SemanticNode): boolean;
+export declare function isImplicit(node: SemanticNode): boolean;
+export declare function isImplicitOp(node: SemanticNode): boolean;
+export declare function isNeutralFence(fence: SemanticNode): boolean;
+export declare function compareNeutralFences(fence1: SemanticNode, fence2: SemanticNode): boolean;
+export declare function elligibleLeftNeutral(fence: SemanticNode): boolean;
+export declare function elligibleRightNeutral(fence: SemanticNode): boolean;
+export declare function isMembership(element: SemanticNode): boolean;

node_modules/speech-rule-engine/js/semantic_tree/semantic_pred.js

@@ -0,0 +1,353 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isType = isType;
+exports.isRole = isRole;
+exports.isAccent = isAccent;
+exports.isSimpleFunctionScope = isSimpleFunctionScope;
+exports.isPrefixFunctionBoundary = isPrefixFunctionBoundary;
+exports.isBigOpBoundary = isBigOpBoundary;
+exports.isIntegralDxBoundary = isIntegralDxBoundary;
+exports.isIntegralDxBoundarySingle = isIntegralDxBoundarySingle;
+exports.isGeneralFunctionBoundary = isGeneralFunctionBoundary;
+exports.isEmbellished = isEmbellished;
+exports.isOperator = isOperator;
+exports.isRelation = isRelation;
+exports.isPunctuation = isPunctuation;
+exports.isFence = isFence;
+exports.isElligibleEmbellishedFence = isElligibleEmbellishedFence;
+exports.isTableOrMultiline = isTableOrMultiline;
+exports.tableIsMatrixOrVector = tableIsMatrixOrVector;
+exports.isFencedElement = isFencedElement;
+exports.tableIsCases = tableIsCases;
+exports.tableIsMultiline = tableIsMultiline;
+exports.lineIsLabelled = lineIsLabelled;
+exports.isBinomial = isBinomial;
+exports.isLimitBase = isLimitBase;
+exports.isSimpleFunctionHead = isSimpleFunctionHead;
+exports.singlePunctAtPosition = singlePunctAtPosition;
+exports.isSimpleFunction = isSimpleFunction;
+exports.isSetNode = isSetNode;
+exports.isSingletonSetContent = isSingletonSetContent;
+exports.isUnitCounter = isUnitCounter;
+exports.isPureUnit = isPureUnit;
+exports.isUnitProduct = isUnitProduct;
+exports.isImplicit = isImplicit;
+exports.isImplicitOp = isImplicitOp;
+exports.isNeutralFence = isNeutralFence;
+exports.compareNeutralFences = compareNeutralFences;
+exports.elligibleLeftNeutral = elligibleLeftNeutral;
+exports.elligibleRightNeutral = elligibleRightNeutral;
+exports.isMembership = isMembership;
+const semantic_attr_js_1 = require("./semantic_attr.js");
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const semantic_util_js_1 = require("./semantic_util.js");
+function isType(node, attr) {
+    return node.type === attr;
+}
+function embellishedType(node, attr) {
+    return node.embellished === attr;
+}
+function isRole(node, attr) {
+    return node.role === attr;
+}
+function isAccent(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.FENCE) ||
+        isType(node, semantic_meaning_js_1.SemanticType.PUNCTUATION) ||
+        isType(node, semantic_meaning_js_1.SemanticType.OPERATOR) ||
+        isType(node, semantic_meaning_js_1.SemanticType.RELATION));
+}
+function isSimpleFunctionScope(node) {
+    const children = node.childNodes;
+    if (children.length === 0) {
+        return true;
+    }
+    if (children.length > 1) {
+        return false;
+    }
+    const child = children[0];
+    if (child.type === semantic_meaning_js_1.SemanticType.INFIXOP) {
+        if (child.role !== semantic_meaning_js_1.SemanticRole.IMPLICIT) {
+            return false;
+        }
+        if (child.childNodes.some((x) => isType(x, semantic_meaning_js_1.SemanticType.INFIXOP))) {
+            return false;
+        }
+    }
+    return true;
+}
+function isPrefixFunctionBoundary(node) {
+    return ((isOperator(node) && !isRole(node, semantic_meaning_js_1.SemanticRole.DIVISION)) ||
+        isType(node, semantic_meaning_js_1.SemanticType.APPL) ||
+        isGeneralFunctionBoundary(node));
+}
+function isBigOpBoundary(node) {
+    return isOperator(node) || isGeneralFunctionBoundary(node);
+}
+function isIntegralDxBoundary(firstNode, secondNode) {
+    return (!!secondNode &&
+        isType(secondNode, semantic_meaning_js_1.SemanticType.IDENTIFIER) &&
+        semantic_attr_js_1.SemanticMap.Secondary.has(firstNode.textContent, semantic_meaning_js_1.SemanticSecondary.D));
+}
+function isIntegralDxBoundarySingle(node) {
+    if (isType(node, semantic_meaning_js_1.SemanticType.IDENTIFIER)) {
+        const firstChar = node.textContent[0];
+        return (firstChar &&
+            node.textContent[1] &&
+            semantic_attr_js_1.SemanticMap.Secondary.has(firstChar, semantic_meaning_js_1.SemanticSecondary.D));
+    }
+    return false;
+}
+function isGeneralFunctionBoundary(node) {
+    return isRelation(node) || isPunctuation(node);
+}
+function isEmbellished(node) {
+    if (node.embellished) {
+        return node.embellished;
+    }
+    if (isEmbellishedType(node.type)) {
+        return node.type;
+    }
+    return null;
+}
+function isEmbellishedType(type) {
+    return (type === semantic_meaning_js_1.SemanticType.OPERATOR ||
+        type === semantic_meaning_js_1.SemanticType.RELATION ||
+        type === semantic_meaning_js_1.SemanticType.FENCE ||
+        type === semantic_meaning_js_1.SemanticType.PUNCTUATION);
+}
+function isOperator(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.OPERATOR) ||
+        embellishedType(node, semantic_meaning_js_1.SemanticType.OPERATOR));
+}
+function isRelation(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.RELATION) ||
+        embellishedType(node, semantic_meaning_js_1.SemanticType.RELATION));
+}
+function isPunctuation(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.PUNCTUATION) ||
+        embellishedType(node, semantic_meaning_js_1.SemanticType.PUNCTUATION));
+}
+function isFence(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.FENCE) ||
+        embellishedType(node, semantic_meaning_js_1.SemanticType.FENCE));
+}
+function isElligibleEmbellishedFence(node) {
+    if (!node || !isFence(node)) {
+        return false;
+    }
+    if (!node.embellished) {
+        return true;
+    }
+    return recurseBaseNode(node);
+}
+function bothSide(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.TENSOR) &&
+        (!isType(node.childNodes[1], semantic_meaning_js_1.SemanticType.EMPTY) ||
+            !isType(node.childNodes[2], semantic_meaning_js_1.SemanticType.EMPTY)) &&
+        (!isType(node.childNodes[3], semantic_meaning_js_1.SemanticType.EMPTY) ||
+            !isType(node.childNodes[4], semantic_meaning_js_1.SemanticType.EMPTY)));
+}
+function recurseBaseNode(node) {
+    if (!node.embellished) {
+        return true;
+    }
+    if (bothSide(node)) {
+        return false;
+    }
+    if (isRole(node, semantic_meaning_js_1.SemanticRole.CLOSE) && isType(node, semantic_meaning_js_1.SemanticType.TENSOR)) {
+        return false;
+    }
+    if (isRole(node, semantic_meaning_js_1.SemanticRole.OPEN) &&
+        (isType(node, semantic_meaning_js_1.SemanticType.SUBSCRIPT) ||
+            isType(node, semantic_meaning_js_1.SemanticType.SUPERSCRIPT))) {
+        return false;
+    }
+    return recurseBaseNode(node.childNodes[0]);
+}
+function isTableOrMultiline(node) {
+    return (!!node &&
+        (isType(node, semantic_meaning_js_1.SemanticType.TABLE) || isType(node, semantic_meaning_js_1.SemanticType.MULTILINE)));
+}
+function tableIsMatrixOrVector(node) {
+    return (!!node && isFencedElement(node) && isTableOrMultiline(node.childNodes[0]));
+}
+function isFencedElement(node) {
+    return (!!node &&
+        isType(node, semantic_meaning_js_1.SemanticType.FENCED) &&
+        (isRole(node, semantic_meaning_js_1.SemanticRole.LEFTRIGHT) || isNeutralFence(node)) &&
+        node.childNodes.length === 1);
+}
+function tableIsCases(_table, prevNodes) {
+    return (prevNodes.length > 0 &&
+        isRole(prevNodes[prevNodes.length - 1], semantic_meaning_js_1.SemanticRole.OPENFENCE));
+}
+function tableIsMultiline(table) {
+    return table.childNodes.every(function (row) {
+        const length = row.childNodes.length;
+        return length <= 1;
+    });
+}
+function lineIsLabelled(line) {
+    return (isType(line, semantic_meaning_js_1.SemanticType.LINE) &&
+        line.contentNodes.length &&
+        isRole(line.contentNodes[0], semantic_meaning_js_1.SemanticRole.LABEL));
+}
+function isBinomial(table) {
+    return table.childNodes.length === 2;
+}
+function isLimitBase(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.LARGEOP) ||
+        isType(node, semantic_meaning_js_1.SemanticType.LIMBOTH) ||
+        isType(node, semantic_meaning_js_1.SemanticType.LIMLOWER) ||
+        isType(node, semantic_meaning_js_1.SemanticType.LIMUPPER) ||
+        (isType(node, semantic_meaning_js_1.SemanticType.FUNCTION) &&
+            isRole(node, semantic_meaning_js_1.SemanticRole.LIMFUNC)) ||
+        ((isType(node, semantic_meaning_js_1.SemanticType.OVERSCORE) ||
+            isType(node, semantic_meaning_js_1.SemanticType.UNDERSCORE)) &&
+            isLimitBase(node.childNodes[0])));
+}
+function isSimpleFunctionHead(node) {
+    return (node.type === semantic_meaning_js_1.SemanticType.IDENTIFIER ||
+        node.role === semantic_meaning_js_1.SemanticRole.LATINLETTER ||
+        node.role === semantic_meaning_js_1.SemanticRole.GREEKLETTER ||
+        node.role === semantic_meaning_js_1.SemanticRole.OTHERLETTER);
+}
+function singlePunctAtPosition(nodes, puncts, position) {
+    return (puncts.length === 1 &&
+        (nodes[position].type === semantic_meaning_js_1.SemanticType.PUNCTUATION ||
+            nodes[position].embellished === semantic_meaning_js_1.SemanticType.PUNCTUATION) &&
+        nodes[position] === puncts[0]);
+}
+function isSimpleFunction(node) {
+    return (isType(node, semantic_meaning_js_1.SemanticType.IDENTIFIER) &&
+        isRole(node, semantic_meaning_js_1.SemanticRole.SIMPLEFUNC));
+}
+function isLeftBrace(node) {
+    const leftBrace = ['{', '﹛', '｛'];
+    return !!node && leftBrace.indexOf(node.textContent) !== -1;
+}
+function isRightBrace(node) {
+    const rightBrace = ['}', '﹜', '｝'];
+    return !!node && rightBrace.indexOf(node.textContent) !== -1;
+}
+function isSetNode(node) {
+    return (isLeftBrace(node.contentNodes[0]) && isRightBrace(node.contentNodes[1]));
+}
+const illegalSingleton = [
+    semantic_meaning_js_1.SemanticType.PUNCTUATION,
+    semantic_meaning_js_1.SemanticType.PUNCTUATED,
+    semantic_meaning_js_1.SemanticType.RELSEQ,
+    semantic_meaning_js_1.SemanticType.MULTIREL,
+    semantic_meaning_js_1.SemanticType.TABLE,
+    semantic_meaning_js_1.SemanticType.MULTILINE,
+    semantic_meaning_js_1.SemanticType.CASES,
+    semantic_meaning_js_1.SemanticType.INFERENCE
+];
+const scriptedElement = [
+    semantic_meaning_js_1.SemanticType.LIMUPPER,
+    semantic_meaning_js_1.SemanticType.LIMLOWER,
+    semantic_meaning_js_1.SemanticType.LIMBOTH,
+    semantic_meaning_js_1.SemanticType.SUBSCRIPT,
+    semantic_meaning_js_1.SemanticType.SUPERSCRIPT,
+    semantic_meaning_js_1.SemanticType.UNDERSCORE,
+    semantic_meaning_js_1.SemanticType.OVERSCORE,
+    semantic_meaning_js_1.SemanticType.TENSOR
+];
+function isSingletonSetContent(node) {
+    const type = node.type;
+    if (illegalSingleton.indexOf(type) !== -1 ||
+        (type === semantic_meaning_js_1.SemanticType.INFIXOP && node.role !== semantic_meaning_js_1.SemanticRole.IMPLICIT)) {
+        return false;
+    }
+    if (type === semantic_meaning_js_1.SemanticType.FENCED) {
+        return node.role === semantic_meaning_js_1.SemanticRole.LEFTRIGHT
+            ? isSingletonSetContent(node.childNodes[0])
+            : true;
+    }
+    if (scriptedElement.indexOf(type) !== -1) {
+        return isSingletonSetContent(node.childNodes[0]);
+    }
+    return true;
+}
+function isNumber(node) {
+    return (node.type === semantic_meaning_js_1.SemanticType.NUMBER &&
+        (node.role === semantic_meaning_js_1.SemanticRole.INTEGER || node.role === semantic_meaning_js_1.SemanticRole.FLOAT));
+}
+function isUnitCounter(node) {
+    return (isNumber(node) ||
+        node.role === semantic_meaning_js_1.SemanticRole.VULGAR ||
+        node.role === semantic_meaning_js_1.SemanticRole.MIXED);
+}
+function isPureUnit(node) {
+    const children = node.childNodes;
+    return (node.role === semantic_meaning_js_1.SemanticRole.UNIT &&
+        (!children.length || children[0].role === semantic_meaning_js_1.SemanticRole.UNIT));
+}
+function isUnitProduct(node) {
+    const children = node.childNodes;
+    return (node.type === semantic_meaning_js_1.SemanticType.INFIXOP &&
+        (node.role === semantic_meaning_js_1.SemanticRole.MULTIPLICATION ||
+            node.role === semantic_meaning_js_1.SemanticRole.IMPLICIT) &&
+        children.length &&
+        (isPureUnit(children[0]) || isUnitCounter(children[0])) &&
+        node.childNodes.slice(1).every(isPureUnit));
+}
+function isImplicit(node) {
+    return (node.type === semantic_meaning_js_1.SemanticType.INFIXOP &&
+        (node.role === semantic_meaning_js_1.SemanticRole.IMPLICIT ||
+            (node.role === semantic_meaning_js_1.SemanticRole.UNIT &&
+                !!node.contentNodes.length &&
+                node.contentNodes[0].textContent === semantic_attr_js_1.NamedSymbol.invisibleTimes)));
+}
+function isImplicitOp(node) {
+    return (node.type === semantic_meaning_js_1.SemanticType.INFIXOP && node.role === semantic_meaning_js_1.SemanticRole.IMPLICIT);
+}
+function isNeutralFence(fence) {
+    return (fence.role === semantic_meaning_js_1.SemanticRole.NEUTRAL || fence.role === semantic_meaning_js_1.SemanticRole.METRIC);
+}
+function compareNeutralFences(fence1, fence2) {
+    return (isNeutralFence(fence1) &&
+        isNeutralFence(fence2) &&
+        (0, semantic_util_js_1.getEmbellishedInner)(fence1).textContent ===
+            (0, semantic_util_js_1.getEmbellishedInner)(fence2).textContent);
+}
+function elligibleLeftNeutral(fence) {
+    if (!isNeutralFence(fence)) {
+        return false;
+    }
+    if (!fence.embellished) {
+        return true;
+    }
+    if (fence.type === semantic_meaning_js_1.SemanticType.SUPERSCRIPT ||
+        fence.type === semantic_meaning_js_1.SemanticType.SUBSCRIPT) {
+        return false;
+    }
+    if (fence.type === semantic_meaning_js_1.SemanticType.TENSOR &&
+        (fence.childNodes[3].type !== semantic_meaning_js_1.SemanticType.EMPTY ||
+            fence.childNodes[4].type !== semantic_meaning_js_1.SemanticType.EMPTY)) {
+        return false;
+    }
+    return true;
+}
+function elligibleRightNeutral(fence) {
+    if (!isNeutralFence(fence)) {
+        return false;
+    }
+    if (!fence.embellished) {
+        return true;
+    }
+    if (fence.type === semantic_meaning_js_1.SemanticType.TENSOR &&
+        (fence.childNodes[1].type !== semantic_meaning_js_1.SemanticType.EMPTY ||
+            fence.childNodes[2].type !== semantic_meaning_js_1.SemanticType.EMPTY)) {
+        return false;
+    }
+    return true;
+}
+function isMembership(element) {
+    return [
+        semantic_meaning_js_1.SemanticRole.ELEMENT,
+        semantic_meaning_js_1.SemanticRole.NONELEMENT,
+        semantic_meaning_js_1.SemanticRole.REELEMENT,
+        semantic_meaning_js_1.SemanticRole.RENONELEMENT
+    ].includes(element.role);
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_processor.d.ts

@@ -0,0 +1,136 @@
+import { SemanticFont } from './semantic_meaning.js';
+import { SemanticNode } from './semantic_node.js';
+import { SemanticNodeFactory } from './semantic_node_factory.js';
+export declare class SemanticProcessor {
+    private static readonly FENCE_TO_PUNCT_;
+    private static readonly MML_TO_LIMIT_;
+    private static readonly MML_TO_BOUNDS_;
+    private static readonly CLASSIFY_FUNCTION_;
+    private static readonly MATHJAX_FONTS;
+    private static instance;
+    funcAppls: {
+        [key: string]: SemanticNode;
+    };
+    private factory_;
+    static getInstance(): SemanticProcessor;
+    static tableToMultiline(table: SemanticNode): SemanticNode;
+    static number(node: SemanticNode): void;
+    static classifyMultiline(multiline: SemanticNode): void;
+    static classifyTable(table: SemanticNode): SemanticNode;
+    private static detectCaleyTable;
+    private static cayleySpacing;
+    static proof(node: Element, semantics: string, parse: (p1: Element[]) => SemanticNode[]): SemanticNode;
+    static findSemantics(node: Element, attr: string, opt_value?: string): boolean;
+    static getSemantics(node: Element): {
+        [key: string]: string;
+    };
+    static removePrefix(name: string): string;
+    static separateSemantics(attr: string): {
+        [key: string]: string;
+    };
+    private static matchSpaces_;
+    private static getSpacer_;
+    private static fenceToPunct_;
+    private static classifyFunction_;
+    private static propagateFunctionRole_;
+    private static getFunctionOp_;
+    private static tableToMatrixOrVector_;
+    private static tableToVector_;
+    private static binomialForm_;
+    private static tableToMatrix_;
+    private static tableToSquare_;
+    private static getComponentRoles_;
+    private static tableToCases_;
+    private static rewriteFencedLine_;
+    private static rowToLine_;
+    private static assignRoleToRow_;
+    private static nextSeparatorFunction_;
+    private static meaningFromContent;
+    private static numberRole_;
+    private static exprFont_;
+    static compSemantics(node: SemanticNode, field: string, sem: any): void;
+    private static purgeFences_;
+    private static rewriteFencedNode_;
+    private static rewriteFence_;
+    private static propagateFencePointer_;
+    private static classifyByColumns_;
+    private static isEndRelation_;
+    private static isPureRelation_;
+    private static computeColumns_;
+    private static testColumns_;
+    setNodeFactory(factory: SemanticNodeFactory): void;
+    getNodeFactory(): SemanticNodeFactory;
+    identifierNode(leaf: SemanticNode, font: SemanticFont, unit: string): SemanticNode;
+    implicitNode(nodes: SemanticNode[]): SemanticNode;
+    text(leaf: SemanticNode, type: string): SemanticNode;
+    row(nodes: SemanticNode[]): SemanticNode;
+    limitNode(mmlTag: string, children: SemanticNode[]): SemanticNode;
+    tablesInRow(nodes: SemanticNode[]): SemanticNode[];
+    mfenced(open: string | null, close: string | null, sepValue: string | null, children: SemanticNode[]): SemanticNode;
+    fractionLikeNode(denom: SemanticNode, enume: SemanticNode, linethickness: string, bevelled: boolean): SemanticNode;
+    tensor(base: SemanticNode, lsub: SemanticNode[], lsup: SemanticNode[], rsub: SemanticNode[], rsup: SemanticNode[]): SemanticNode;
+    pseudoTensor(base: SemanticNode, sub: SemanticNode[], sup: SemanticNode[]): SemanticNode;
+    font(font: string): SemanticFont;
+    proof(node: Element, semantics: {
+        [key: string]: string;
+    }, parse: (p1: Element[]) => SemanticNode[]): SemanticNode;
+    inference(node: Element, semantics: {
+        [key: string]: string;
+    }, parse: (p1: Element[]) => SemanticNode[]): SemanticNode;
+    getLabel(_node: Element, children: Element[], parse: (p1: Element[]) => SemanticNode[], side: string): SemanticNode;
+    getFormulas(node: Element, children: Element[], parse: (p1: Element[]) => SemanticNode[]): {
+        conclusion: SemanticNode;
+        premises: SemanticNode;
+    };
+    findNestedRow(nodes: Element[], semantic: string, opt_value?: string): Element;
+    cleanInference(nodes: NodeList): Element[];
+    operatorNode(node: SemanticNode): SemanticNode;
+    private constructor();
+    private implicitNode_;
+    private infixNode_;
+    private explicitMixed_;
+    private concatNode_;
+    private prefixNode_;
+    private splitRoles;
+    private splitOps;
+    private splitSingles;
+    private postfixNode_;
+    private combineUnits_;
+    private getMixedNumbers_;
+    private getTextInRow_;
+    private relationsInRow_;
+    private operationsInRow_;
+    private wrapPostfix;
+    private wrapFactor;
+    private addFactor;
+    private operationsTree_;
+    private appendOperand_;
+    private appendDivisionOp_;
+    private appendLastOperand_;
+    private appendMultiplicativeOp_;
+    private appendAdditiveOp_;
+    private appendExistingOperator_;
+    private getFencesInRow_;
+    private fences_;
+    private neutralFences_;
+    private combineFencedContent_;
+    private horizontalFencedNode_;
+    private classifyHorizontalFence_;
+    private setExtension_;
+    private getPunctuationInRow_;
+    private punctuatedNode_;
+    private dummyNode_;
+    private accentRole_;
+    private accentNode_;
+    private makeLimitNode_;
+    private getFunctionsInRow_;
+    private getFunctionArgs_;
+    private getIntegralArgs_;
+    private functionNode_;
+    private bigOpNode_;
+    private integralNode_;
+    private functionalNode_;
+    private fractionNode_;
+    private scriptNode_;
+    private findNestedRow_;
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_skeleton.d.ts

@@ -0,0 +1,36 @@
+import { SemanticType, SemanticRole } from './semantic_meaning.js';
+import { SemanticNode } from './semantic_node.js';
+import { SemanticTree } from './semantic_tree.js';
+export type Sexp = number | Sexp[];
+export declare class SemanticSkeleton {
+    array: Sexp;
+    parents: {
+        [key: number]: number[];
+    };
+    levelsMap: {
+        [key: number]: Sexp[];
+    };
+    static fromTree(tree: SemanticTree): SemanticSkeleton;
+    static fromNode(node: SemanticNode): SemanticSkeleton;
+    static fromString(skel: string): SemanticSkeleton;
+    static simpleCollapseStructure(strct: Sexp): boolean;
+    static contentCollapseStructure(strct: Sexp): boolean;
+    static interleaveIds(first: Sexp, second: Sexp): Sexp;
+    static collapsedLeafs(...args: Sexp[]): number[];
+    static fromStructure(mml: Element, tree: SemanticTree): SemanticSkeleton;
+    static combineContentChildren<T>(type: SemanticType, _role: SemanticRole, content: T[], children: T[]): T[];
+    private static makeSexp_;
+    private static fromString_;
+    private static fromNode_;
+    private static tree_;
+    private static addAria;
+    private static addOwns_;
+    private static realLeafs_;
+    constructor(skeleton: Sexp);
+    populate(): void;
+    toString(): string;
+    private populate_;
+    isRoot(id: number): boolean;
+    directChildren(id: number): number[];
+    subtreeNodes(id: number): number[];
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_skeleton.js

@@ -0,0 +1,254 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticSkeleton = void 0;
+const BaseUtil = require("../common/base_util.js");
+const engine_js_1 = require("../common/engine.js");
+const XpathUtil = require("../common/xpath_util.js");
+const enrich_attr_js_1 = require("../enrich_mathml/enrich_attr.js");
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const Options = {
+    tree: false
+};
+class SemanticSkeleton {
+    static fromTree(tree) {
+        return SemanticSkeleton.fromNode(tree.root);
+    }
+    static fromNode(node) {
+        return new SemanticSkeleton(SemanticSkeleton.fromNode_(node));
+    }
+    static fromString(skel) {
+        return new SemanticSkeleton(SemanticSkeleton.fromString_(skel));
+    }
+    static simpleCollapseStructure(strct) {
+        return typeof strct === 'number';
+    }
+    static contentCollapseStructure(strct) {
+        return (!!strct &&
+            !SemanticSkeleton.simpleCollapseStructure(strct) &&
+            strct[0] === 'c');
+    }
+    static interleaveIds(first, second) {
+        return BaseUtil.interleaveLists(SemanticSkeleton.collapsedLeafs(first), SemanticSkeleton.collapsedLeafs(second));
+    }
+    static collapsedLeafs(...args) {
+        const collapseStructure = (coll) => {
+            if (SemanticSkeleton.simpleCollapseStructure(coll)) {
+                return [coll];
+            }
+            coll = coll;
+            return SemanticSkeleton.contentCollapseStructure(coll[1])
+                ? coll.slice(2)
+                : coll.slice(1);
+        };
+        return args.reduce((x, y) => x.concat(collapseStructure(y)), []);
+    }
+    static fromStructure(mml, tree) {
+        return new SemanticSkeleton(SemanticSkeleton.tree_(mml, tree.root));
+    }
+    static combineContentChildren(type, _role, content, children) {
+        switch (type) {
+            case semantic_meaning_js_1.SemanticType.RELSEQ:
+            case semantic_meaning_js_1.SemanticType.INFIXOP:
+            case semantic_meaning_js_1.SemanticType.MULTIREL:
+                return BaseUtil.interleaveLists(children, content);
+            case semantic_meaning_js_1.SemanticType.PREFIXOP:
+                return content.concat(children);
+            case semantic_meaning_js_1.SemanticType.POSTFIXOP:
+                return children.concat(content);
+            case semantic_meaning_js_1.SemanticType.MATRIX:
+            case semantic_meaning_js_1.SemanticType.VECTOR:
+            case semantic_meaning_js_1.SemanticType.FENCED:
+                children.unshift(content[0]);
+                children.push(content[1]);
+                return children;
+            case semantic_meaning_js_1.SemanticType.CASES:
+                children.unshift(content[0]);
+                return children;
+            case semantic_meaning_js_1.SemanticType.APPL:
+                return [children[0], content[0], children[1]];
+            case semantic_meaning_js_1.SemanticType.ROOT:
+                return [children[0], children[1]];
+            case semantic_meaning_js_1.SemanticType.ROW:
+            case semantic_meaning_js_1.SemanticType.LINE:
+                if (content.length) {
+                    children.unshift(content[0]);
+                }
+                return children;
+            default:
+                return children;
+        }
+    }
+    static makeSexp_(struct) {
+        if (SemanticSkeleton.simpleCollapseStructure(struct)) {
+            return struct.toString();
+        }
+        if (SemanticSkeleton.contentCollapseStructure(struct)) {
+            return ('(' +
+                'c ' +
+                struct.slice(1).map(SemanticSkeleton.makeSexp_).join(' ') +
+                ')');
+        }
+        return ('(' + struct.map(SemanticSkeleton.makeSexp_).join(' ') + ')');
+    }
+    static fromString_(skeleton) {
+        let str = skeleton.replace(/\(/g, '[');
+        str = str.replace(/\)/g, ']');
+        str = str.replace(/ /g, ',');
+        str = str.replace(/c/g, '"c"');
+        return JSON.parse(str);
+    }
+    static fromNode_(node) {
+        if (!node) {
+            return [];
+        }
+        const content = node.contentNodes;
+        let contentStructure;
+        if (content.length) {
+            contentStructure = content.map(SemanticSkeleton.fromNode_);
+            contentStructure.unshift('c');
+        }
+        const children = node.childNodes;
+        if (!children.length) {
+            return content.length ? [node.id, contentStructure] : node.id;
+        }
+        const structure = children.map(SemanticSkeleton.fromNode_);
+        if (content.length) {
+            structure.unshift(contentStructure);
+        }
+        structure.unshift(node.id);
+        return structure;
+    }
+    static tree_(mml, node, level = 0, posinset = 1, setsize = 1) {
+        if (!node) {
+            return [];
+        }
+        const id = node.id;
+        const skeleton = [id];
+        XpathUtil.updateEvaluator(mml);
+        const mmlChild = XpathUtil.evalXPath(`.//self::*[@${enrich_attr_js_1.Attribute.ID}=${id}]`, mml)[0];
+        if (!node.childNodes.length) {
+            SemanticSkeleton.addAria(mmlChild, level, posinset, setsize);
+            return node.id;
+        }
+        const children = SemanticSkeleton.combineContentChildren(node.type, node.role, node.contentNodes.map(function (x) {
+            return x;
+        }), node.childNodes.map(function (x) {
+            return x;
+        }));
+        if (mmlChild) {
+            SemanticSkeleton.addOwns_(mmlChild, children);
+        }
+        for (let i = 0, l = children.length, child; (child = children[i]); i++) {
+            skeleton.push(SemanticSkeleton.tree_(mml, child, level + 1, i + 1, l));
+        }
+        SemanticSkeleton.addAria(mmlChild, level, posinset, setsize, !Options.tree ? 'treeitem' : level ? 'group' : 'tree');
+        return skeleton;
+    }
+    static addAria(node, level, posinset, setsize, role = !Options.tree ? 'treeitem' : level ? 'treeitem' : 'tree') {
+        if (!engine_js_1.Engine.getInstance().aria || !node) {
+            return;
+        }
+        node.setAttribute('aria-level', level.toString());
+        node.setAttribute('aria-posinset', posinset.toString());
+        node.setAttribute('aria-setsize', setsize.toString());
+        node.setAttribute('role', role);
+        if (node.hasAttribute(enrich_attr_js_1.Attribute.OWNS)) {
+            node.setAttribute('aria-owns', node.getAttribute(enrich_attr_js_1.Attribute.OWNS));
+        }
+    }
+    static addOwns_(node, children) {
+        const collapsed = node.getAttribute(enrich_attr_js_1.Attribute.COLLAPSED);
+        const leafs = collapsed
+            ? SemanticSkeleton.realLeafs_(SemanticSkeleton.fromString(collapsed).array)
+            : children.map((x) => x.id);
+        node.setAttribute(enrich_attr_js_1.Attribute.OWNS, leafs.join(' '));
+    }
+    static realLeafs_(sexp) {
+        if (SemanticSkeleton.simpleCollapseStructure(sexp)) {
+            return [sexp];
+        }
+        if (SemanticSkeleton.contentCollapseStructure(sexp)) {
+            return [];
+        }
+        sexp = sexp;
+        let result = [];
+        for (let i = 1; i < sexp.length; i++) {
+            result = result.concat(SemanticSkeleton.realLeafs_(sexp[i]));
+        }
+        return result;
+    }
+    constructor(skeleton) {
+        this.parents = null;
+        this.levelsMap = null;
+        skeleton = skeleton === 0 ? skeleton : skeleton || [];
+        this.array = skeleton;
+    }
+    populate() {
+        if (this.parents && this.levelsMap) {
+            return;
+        }
+        this.parents = {};
+        this.levelsMap = {};
+        this.populate_(this.array, this.array, []);
+    }
+    toString() {
+        return SemanticSkeleton.makeSexp_(this.array);
+    }
+    populate_(element, layer, parents) {
+        if (SemanticSkeleton.simpleCollapseStructure(element)) {
+            element = element;
+            this.levelsMap[element] = layer;
+            this.parents[element] =
+                element === parents[0] ? parents.slice(1) : parents;
+            return;
+        }
+        const newElement = SemanticSkeleton.contentCollapseStructure(element)
+            ? element.slice(1)
+            : element;
+        const newParents = [newElement[0]].concat(parents);
+        for (let i = 0, l = newElement.length; i < l; i++) {
+            const current = newElement[i];
+            this.populate_(current, element, newParents);
+        }
+    }
+    isRoot(id) {
+        const level = this.levelsMap[id];
+        return id === level[0];
+    }
+    directChildren(id) {
+        if (!this.isRoot(id)) {
+            return [];
+        }
+        const level = this.levelsMap[id];
+        return level.slice(1).map((child) => {
+            if (SemanticSkeleton.simpleCollapseStructure(child)) {
+                return child;
+            }
+            if (SemanticSkeleton.contentCollapseStructure(child)) {
+                return child[1];
+            }
+            return child[0];
+        });
+    }
+    subtreeNodes(id) {
+        if (!this.isRoot(id)) {
+            return [];
+        }
+        const subtreeNodes_ = (tree, nodes) => {
+            if (SemanticSkeleton.simpleCollapseStructure(tree)) {
+                nodes.push(tree);
+                return;
+            }
+            tree = tree;
+            if (SemanticSkeleton.contentCollapseStructure(tree)) {
+                tree = tree.slice(1);
+            }
+            tree.forEach((x) => subtreeNodes_(x, nodes));
+        };
+        const level = this.levelsMap[id];
+        const subtree = [];
+        subtreeNodes_(level.slice(1), subtree);
+        return subtree;
+    }
+}
+exports.SemanticSkeleton = SemanticSkeleton;

node_modules/speech-rule-engine/js/semantic_tree/semantic_tree.d.ts

@@ -0,0 +1,21 @@
+import { SemanticMeaningCollator } from './semantic_default.js';
+import { SemanticNode } from './semantic_node.js';
+import { SemanticParser } from './semantic_parser.js';
+import './semantic_heuristics.js';
+export declare class SemanticTree {
+    mathml: Element;
+    parser: SemanticParser<Element>;
+    root: SemanticNode;
+    collator: SemanticMeaningCollator;
+    static empty(): SemanticTree;
+    static fromNode(semantic: SemanticNode, opt_mathml?: Element): SemanticTree;
+    static fromRoot(semantic: SemanticNode, opt_mathml?: Element): SemanticTree;
+    static fromXml(xml: Element): SemanticTree;
+    constructor(mathml: Element);
+    xml(opt_brief?: boolean): Element;
+    toString(opt_brief?: boolean): string;
+    formatXml(opt_brief?: boolean): string;
+    displayTree(): void;
+    replaceNode(oldNode: SemanticNode, newNode: SemanticNode): void;
+    toJson(): any;
+}

node_modules/speech-rule-engine/js/semantic_tree/semantic_tree.js

@@ -0,0 +1,95 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.SemanticTree = void 0;
+const DomUtil = require("../common/dom_util.js");
+const semantic_annotations_js_1 = require("./semantic_annotations.js");
+const semantic_annotator_js_1 = require("./semantic_annotator.js");
+const semantic_meaning_js_1 = require("./semantic_meaning.js");
+const semantic_mathml_js_1 = require("./semantic_mathml.js");
+const semantic_node_js_1 = require("./semantic_node.js");
+const SemanticPred = require("./semantic_pred.js");
+require("./semantic_heuristics.js");
+class SemanticTree {
+    static empty() {
+        const empty = DomUtil.parseInput('<math/>');
+        const stree = new SemanticTree(empty);
+        stree.mathml = empty;
+        return stree;
+    }
+    static fromNode(semantic, opt_mathml) {
+        const stree = SemanticTree.empty();
+        stree.root = semantic;
+        if (opt_mathml) {
+            stree.mathml = opt_mathml;
+        }
+        return stree;
+    }
+    static fromRoot(semantic, opt_mathml) {
+        let root = semantic;
+        while (root.parent) {
+            root = root.parent;
+        }
+        const stree = SemanticTree.fromNode(root);
+        if (opt_mathml) {
+            stree.mathml = opt_mathml;
+        }
+        return stree;
+    }
+    static fromXml(xml) {
+        const stree = SemanticTree.empty();
+        if (xml.childNodes[0]) {
+            stree.root = semantic_node_js_1.SemanticNode.fromXml(xml.childNodes[0]);
+        }
+        return stree;
+    }
+    constructor(mathml) {
+        this.mathml = mathml;
+        this.parser = new semantic_mathml_js_1.SemanticMathml();
+        this.root = this.parser.parse(mathml);
+        this.collator = this.parser.getFactory().leafMap.collateMeaning();
+        const newDefault = this.collator.newDefault();
+        if (newDefault) {
+            this.parser = new semantic_mathml_js_1.SemanticMathml();
+            this.parser.getFactory().defaultMap = newDefault;
+            this.root = this.parser.parse(mathml);
+        }
+        unitVisitor.visit(this.root, {});
+        (0, semantic_annotations_js_1.annotate)(this.root);
+    }
+    xml(opt_brief) {
+        const xml = DomUtil.parseInput('<stree></stree>');
+        const xmlRoot = this.root.xml(xml.ownerDocument, opt_brief);
+        xml.appendChild(xmlRoot);
+        return xml;
+    }
+    toString(opt_brief) {
+        return DomUtil.serializeXml(this.xml(opt_brief));
+    }
+    formatXml(opt_brief) {
+        const xml = this.toString(opt_brief);
+        return DomUtil.formatXml(xml);
+    }
+    displayTree() {
+        this.root.displayTree();
+    }
+    replaceNode(oldNode, newNode) {
+        const parent = oldNode.parent;
+        if (!parent) {
+            this.root = newNode;
+            return;
+        }
+        parent.replaceChild(oldNode, newNode);
+    }
+    toJson() {
+        const json = {};
+        json['stree'] = this.root.toJson();
+        return json;
+    }
+}
+exports.SemanticTree = SemanticTree;
+const unitVisitor = new semantic_annotator_js_1.SemanticVisitor('general', 'unit', (node, _info) => {
+    if (SemanticPred.isUnitProduct(node)) {
+        node.role = semantic_meaning_js_1.SemanticRole.UNIT;
+    }
+    return false;
+});

node_modules/speech-rule-engine/js/semantic_tree/semantic_util.d.ts

@@ -0,0 +1,60 @@
+import { SemanticNode } from './semantic_node.js';
+export declare enum MMLTAGS {
+    ANNOTATION = "ANNOTATION",
+    ANNOTATIONXML = "ANNOTATION-XML",
+    MACTION = "MACTION",
+    MALIGNGROUP = "MALIGNGROUP",
+    MALIGNMARK = "MALIGNMARK",
+    MATH = "MATH",
+    MENCLOSE = "MENCLOSE",
+    MERROR = "MERROR",
+    MFENCED = "MFENCED",
+    MFRAC = "MFRAC",
+    MGLYPH = "MGLYPH",
+    MI = "MI",
+    MLABELEDTR = "MLABELEDTR",
+    MMULTISCRIPTS = "MMULTISCRIPTS",
+    MN = "MN",
+    MO = "MO",
+    MOVER = "MOVER",
+    MPADDED = "MPADDED",
+    MPHANTOM = "MPHANTOM",
+    MPRESCRIPTS = "MPRESCRIPTS",
+    MROOT = "MROOT",
+    MROW = "MROW",
+    MS = "MS",
+    MSPACE = "MSPACE",
+    MSQRT = "MSQRT",
+    MSTYLE = "MSTYLE",
+    MSUB = "MSUB",
+    MSUBSUP = "MSUBSUP",
+    MSUP = "MSUP",
+    MTABLE = "MTABLE",
+    MTD = "MTD",
+    MTEXT = "MTEXT",
+    MTR = "MTR",
+    MUNDER = "MUNDER",
+    MUNDEROVER = "MUNDEROVER",
+    NONE = "NONE",
+    SEMANTICS = "SEMANTICS"
+}
+export declare function hasMathTag(node: Element): boolean;
+export declare function hasIgnoreTag(node: Element): boolean;
+export declare function hasEmptyTag(node: Element): boolean;
+export declare function hasDisplayTag(node: Element): boolean;
+export declare function isOrphanedGlyph(node: Element): boolean;
+export declare function purgeNodes(nodes: Element[]): Element[];
+export declare function isZeroLength(length: string): boolean;
+export declare function addAttributes(to: SemanticNode, from: Element): void;
+export declare function getEmbellishedInner(node: SemanticNode): SemanticNode;
+export interface Slice {
+    head: SemanticNode[];
+    div: SemanticNode;
+    tail: SemanticNode[];
+}
+export declare function sliceNodes(nodes: SemanticNode[], pred: (p1: SemanticNode) => boolean, opt_reverse?: boolean): Slice;
+export interface Partition {
+    rel: SemanticNode[];
+    comp: SemanticNode[][];
+}
+export declare function partitionNodes(nodes: SemanticNode[], pred: (p1: SemanticNode) => boolean): Partition;

node_modules/speech-rule-engine/js/semantic_tree/semantic_util.js

@@ -0,0 +1,214 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.MMLTAGS = void 0;
+exports.hasMathTag = hasMathTag;
+exports.hasIgnoreTag = hasIgnoreTag;
+exports.hasEmptyTag = hasEmptyTag;
+exports.hasDisplayTag = hasDisplayTag;
+exports.isOrphanedGlyph = isOrphanedGlyph;
+exports.purgeNodes = purgeNodes;
+exports.isZeroLength = isZeroLength;
+exports.addAttributes = addAttributes;
+exports.getEmbellishedInner = getEmbellishedInner;
+exports.sliceNodes = sliceNodes;
+exports.partitionNodes = partitionNodes;
+const DomUtil = require("../common/dom_util.js");
+var MMLTAGS;
+(function (MMLTAGS) {
+    MMLTAGS["ANNOTATION"] = "ANNOTATION";
+    MMLTAGS["ANNOTATIONXML"] = "ANNOTATION-XML";
+    MMLTAGS["MACTION"] = "MACTION";
+    MMLTAGS["MALIGNGROUP"] = "MALIGNGROUP";
+    MMLTAGS["MALIGNMARK"] = "MALIGNMARK";
+    MMLTAGS["MATH"] = "MATH";
+    MMLTAGS["MENCLOSE"] = "MENCLOSE";
+    MMLTAGS["MERROR"] = "MERROR";
+    MMLTAGS["MFENCED"] = "MFENCED";
+    MMLTAGS["MFRAC"] = "MFRAC";
+    MMLTAGS["MGLYPH"] = "MGLYPH";
+    MMLTAGS["MI"] = "MI";
+    MMLTAGS["MLABELEDTR"] = "MLABELEDTR";
+    MMLTAGS["MMULTISCRIPTS"] = "MMULTISCRIPTS";
+    MMLTAGS["MN"] = "MN";
+    MMLTAGS["MO"] = "MO";
+    MMLTAGS["MOVER"] = "MOVER";
+    MMLTAGS["MPADDED"] = "MPADDED";
+    MMLTAGS["MPHANTOM"] = "MPHANTOM";
+    MMLTAGS["MPRESCRIPTS"] = "MPRESCRIPTS";
+    MMLTAGS["MROOT"] = "MROOT";
+    MMLTAGS["MROW"] = "MROW";
+    MMLTAGS["MS"] = "MS";
+    MMLTAGS["MSPACE"] = "MSPACE";
+    MMLTAGS["MSQRT"] = "MSQRT";
+    MMLTAGS["MSTYLE"] = "MSTYLE";
+    MMLTAGS["MSUB"] = "MSUB";
+    MMLTAGS["MSUBSUP"] = "MSUBSUP";
+    MMLTAGS["MSUP"] = "MSUP";
+    MMLTAGS["MTABLE"] = "MTABLE";
+    MMLTAGS["MTD"] = "MTD";
+    MMLTAGS["MTEXT"] = "MTEXT";
+    MMLTAGS["MTR"] = "MTR";
+    MMLTAGS["MUNDER"] = "MUNDER";
+    MMLTAGS["MUNDEROVER"] = "MUNDEROVER";
+    MMLTAGS["NONE"] = "NONE";
+    MMLTAGS["SEMANTICS"] = "SEMANTICS";
+})(MMLTAGS || (exports.MMLTAGS = MMLTAGS = {}));
+const ALLTAGS = Object.values(MMLTAGS);
+const LEAFTAGS = [
+    MMLTAGS.MO,
+    MMLTAGS.MI,
+    MMLTAGS.MN,
+    MMLTAGS.MTEXT,
+    MMLTAGS.MS,
+    MMLTAGS.MSPACE
+];
+const IGNORETAGS = [
+    MMLTAGS.MERROR,
+    MMLTAGS.MPHANTOM,
+    MMLTAGS.MALIGNGROUP,
+    MMLTAGS.MALIGNMARK,
+    MMLTAGS.MPRESCRIPTS,
+    MMLTAGS.ANNOTATION,
+    MMLTAGS.ANNOTATIONXML
+];
+const EMPTYTAGS = [
+    MMLTAGS.MATH,
+    MMLTAGS.MROW,
+    MMLTAGS.MPADDED,
+    MMLTAGS.MACTION,
+    MMLTAGS.NONE,
+    MMLTAGS.MSTYLE,
+    MMLTAGS.SEMANTICS
+];
+const DISPLAYTAGS = [MMLTAGS.MROOT, MMLTAGS.MSQRT];
+const directSpeechKeys = ['aria-label', 'exact-speech', 'alt'];
+function hasMathTag(node) {
+    return !!node && DomUtil.tagName(node) === MMLTAGS.MATH;
+}
+function hasLeafTag(node) {
+    return !!node && LEAFTAGS.includes(DomUtil.tagName(node));
+}
+function hasIgnoreTag(node) {
+    return (!!node &&
+        (IGNORETAGS.includes(DomUtil.tagName(node)) ||
+            !ALLTAGS.includes(DomUtil.tagName(node))));
+}
+function hasEmptyTag(node) {
+    return !!node && EMPTYTAGS.includes(DomUtil.tagName(node));
+}
+function hasDisplayTag(node) {
+    return !!node && DISPLAYTAGS.includes(DomUtil.tagName(node));
+}
+function isOrphanedGlyph(node) {
+    return (!!node &&
+        DomUtil.tagName(node) === MMLTAGS.MGLYPH &&
+        !hasLeafTag(node.parentNode));
+}
+function purgeNodes(nodes) {
+    const nodeArray = [];
+    for (let i = 0, node; (node = nodes[i]); i++) {
+        if (node.nodeType !== DomUtil.NodeType.ELEMENT_NODE) {
+            continue;
+        }
+        const tagName = DomUtil.tagName(node);
+        if (IGNORETAGS.includes(tagName)) {
+            continue;
+        }
+        if (EMPTYTAGS.includes(tagName) && node.childNodes.length === 0) {
+            continue;
+        }
+        nodeArray.push(node);
+    }
+    return nodeArray;
+}
+function isZeroLength(length) {
+    if (!length) {
+        return false;
+    }
+    const negativeNamedSpaces = [
+        'negativeveryverythinmathspace',
+        'negativeverythinmathspace',
+        'negativethinmathspace',
+        'negativemediummathspace',
+        'negativethickmathspace',
+        'negativeverythickmathspace',
+        'negativeveryverythickmathspace'
+    ];
+    if (negativeNamedSpaces.includes(length)) {
+        return true;
+    }
+    const value = length.match(/[0-9.]+/);
+    if (!value) {
+        return false;
+    }
+    return parseFloat(value[0]) === 0;
+}
+function addAttributes(to, from) {
+    if (from.hasAttributes()) {
+        const attrs = from.attributes;
+        for (let i = attrs.length - 1; i >= 0; i--) {
+            const key = attrs[i].name;
+            if (key.match(/^ext/)) {
+                to.attributes[key] = attrs[i].value;
+                to.nobreaking = true;
+            }
+            if (directSpeechKeys.includes(key)) {
+                to.attributes['ext-speech'] = attrs[i].value;
+                to.nobreaking = true;
+            }
+            if (key.match(/texclass$/)) {
+                to.attributes['texclass'] = attrs[i].value;
+            }
+            if (key.toLowerCase() === 'data-latex') {
+                to.attributes['latex'] = attrs[i].value;
+            }
+            if (key === 'href') {
+                to.attributes['href'] = attrs[i].value;
+                to.nobreaking = true;
+            }
+        }
+    }
+}
+function getEmbellishedInner(node) {
+    if (node && node.embellished && node.childNodes.length > 0) {
+        return getEmbellishedInner(node.childNodes[0]);
+    }
+    return node;
+}
+function sliceNodes(nodes, pred, opt_reverse) {
+    if (opt_reverse) {
+        nodes.reverse();
+    }
+    const head = [];
+    for (let i = 0, node; (node = nodes[i]); i++) {
+        if (pred(node)) {
+            if (opt_reverse) {
+                return {
+                    head: nodes.slice(i + 1).reverse(),
+                    div: node,
+                    tail: head.reverse()
+                };
+            }
+            return { head: head, div: node, tail: nodes.slice(i + 1) };
+        }
+        head.push(node);
+    }
+    if (opt_reverse) {
+        return { head: [], div: null, tail: head.reverse() };
+    }
+    return { head: head, div: null, tail: [] };
+}
+function partitionNodes(nodes, pred) {
+    let restNodes = nodes;
+    const rel = [];
+    const comp = [];
+    let result = null;
+    do {
+        result = sliceNodes(restNodes, pred);
+        comp.push(result.head);
+        rel.push(result.div);
+        restNodes = result.tail;
+    } while (result.div);
+    rel.pop();
+    return { rel: rel, comp: comp };
+}