Question

I want to replace some text to other text which contains elements of basic text.

For example:

text text
blabla HYPERLINK "mailto:[e-mail]"[e-mail]
text text

I want to replace HYPERLINK "mailto:[e-mail]"[e-mail] to <a href="[e-mail]">[e-mail]</a>

So the result should be:

text text
blabla <a href="[e-mail]">[e-mail]</a>
text text

How can I do that using Java?

Answer 1

Here’s how you could do this:

String str = "text text\n" +
    "blabla HYPERLINK \"mailto:[e-mail]\"[e-mail]\n" +
    "text text";

str = str.replaceAll("HYPERLINK \\\"mailto:(.*?)\\\"\\1", "<a href=\"$1\">$1</a>");     
System.out.println(str);

EDIT:

You could possible take a cue from the hyperlink markdown used here at SO and do the following for a more generalised solution:

String str = 
    "text text\n" +
    "blabla (mailto:[e-mail])[this email] or (mailto:[e-mail])[[e-mail]]\n" +
    "text (http://www.google.com/)[this is google] text";

str = str.replaceAll("\\((.*?)\\)\\[(.*?)\\]", "<a href=\"$1\">$2</a>");       
System.out.println(str);