Test, validate and match regular expressions
Matches lines of HTML markup starting with form elements such as <input>, <textarea>, or tags ending in TextBox/Field (common in ASP.NET WebForms markup) that include a name or id attribute with a quoted word-character value. With the gm flags it scans multiline documents line-by-line. Useful for detecting and extracting web form fields during HTML parsing, scraping, or security analysis.