devexpress-richedit/lib/common/rich-utils/display-numbering-string-formatter.js

DevExpress Rich Text Editor is an advanced word-processing tool designed for working with rich text documents.

export class DisplayNumberingStringFormatter {
    static format(str, items) {
        return str.replace(/{(\d+)}/g, (_match, index) => items[index] || '');
    }
}