Question

I have extracted html source from a web page, and was wondering how to extract texts like email addresses from that source. Im thinking of using jsoup like

public static String html2text(String html) {
    return Jsoup.parse(html).text();
}

but that would give me a lot of unwanted text as well.

Answer 1

You can strip all the tags (unless emails are inside tags). Then either apply regular expression or check every word if it matches an email pattern. I usually mark it as email if it contains @ inside the word and a . is found afterwords. According to standard email format, many emails will not match (eg. "hello [e-mail]"). Yes email supports space characters before @!