feat: add multiscripts without prescripts use case

src/converters/mathml-interfaces-to-latex/mathml-tag-to-latex/Dispatcher.ts

@@ -45,6 +45,8 @@ export class Dispatcher {
         return new MathMLTags.MSub(this._value, this._attributes, this._children);
       case 'msubsup':
         return new MathMLTags.MSubsup(this._value, this._attributes, this._children);
+      case 'mmultiscripts':
+        return new MathMLTags.MMultiscripts(this._value, this._attributes, this._children);
       case 'mtext':
         return new MathMLTags.MText(this._value, this._attributes, this._children);
       case 'munderover':

src/converters/mathml-interfaces-to-latex/mathml-tag-to-latex/mathml-tags/MMultiscripts.ts

@@ -0,0 +1,27 @@
+import { MathMLTag } from './MathMLTag';
+import { BracketWrapper, ParenthesisWrapper } from '../../../../utils/wrappers';
+import { InvalidNumberOfChild } from '../../../../errors';
+
+export class MMultiscripts extends MathMLTag {
+  constructor(value: string, attributes: Record<string, string>, children: MathMLTag[]) {
+    super('mmultiscripts', value, attributes, children);
+  }
+
+  convert(): string {
+    if (this._children.length !== 3) throw new InvalidNumberOfChild(this._name, 2, this._children.length);
+
+    const base = this._children[0].convert();
+    const sub = this._children[1].convert();
+    const sup = this._children[2].convert();
+
+    const wrappedSub = new BracketWrapper().wrap(sub);
+    const wrappedSup = new BracketWrapper().wrap(sup);
+
+    return `${this._wrapInParenthesisIfThereIsSpace(base)}_${wrappedSub}^${wrappedSup}`;
+  }
+
+  private _wrapInParenthesisIfThereIsSpace(str: string): string {
+    if (!str.match(/\s+/g)) return str;
+    return new ParenthesisWrapper().wrap(str);
+  }
+}

src/converters/mathml-interfaces-to-latex/mathml-tag-to-latex/mathml-tags/index.ts

@@ -14,6 +14,7 @@ export { MPhantom } from './MPhantom';
 export { MSup } from './MSup';
 export { MSub } from './MSub';
 export { MSubsup } from './MSubsup';
+export { MMultiscripts } from './MMultiscripts';
 export { MText } from './MText';
 export { MUnderover } from './MUnderover';
 export { MTable } from './MTable';