How to get the domain from an URL using regex?

Question

I need to display a word doc on a webpage. I am using a library named Docx4j to convert .doc to html. This is working fine. But, I'm getting the hyperlinks in the below format.

To search on google go to this link [#?] HYPERLINK \"http://www.google.com/\" [#?][#?] google[#?] and type the text.

I'm able to convert it to

To search on google go to this link  (http://www.google.com) google and type the text.

using the below code

String myText = "To search on google go to this link [#?] HYPERLINK \"http://www.google.com/\" [#?][#?] google[#?] and type the text.";
System.out.println(myText);
String firstReplace = myText.replaceAll("\\[", "").replaceAll("\\]", "").replaceAll("#\\?", "");
System.out.println(firstReplace);
String secondReplace = firstReplace.replaceAll("HYPER\\S+\\s+\"", "(");
System.out.println(secondReplace);
String finalReplace = secondReplace.replaceAll("/*\".", ")");
System.out.println("\n" + finalReplace);

Can someone please provide me a regex to convert the above string to

To search on google go to this link google (http://www.google.com) and type the text.

--EDIT--

There are some links which show up as

[#?] HYPERLINK \"http://www.google.com/\" [#?][#?] google page[#?]

I should change them to

google page (http://www.google.com)

How do I do this?

Kasravnd · Accepted Answer · 2015-11-06 08:15:27Z

2

You can use a group reference to match the word google which comes after the parenthesis.

You can replace the result of following regex:

'(\([^)]*\))\s?(\w+)'

With following :

'$2 $1'

You can use str.replaceAll() function for this aim.

Elaboration:

The first capture group (\([^)]*\)) will match the part between parenthesis, [^)]* is a negated character class which match any combination of characters except closing parenthesis.

And the second one (\w+) will match the words after that part, \w+ will match any combination of word characters.

edited Nov 6, 2015 at 8:15

answered Nov 6, 2015 at 8:05

Kasravnd

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3 Comments

Sumodh S Over a year ago

can you please elaborate?

Sumodh S Over a year ago

is there any way I can get "google.com" and replace it with "(google.com)" directly? I can't use this script given in the question since what I have is an HTML and replacing the " messes up my HTML

Aakash Over a year ago

Thanks @Kasramvd. I've edited the question, please have a look.

Klitos Kyriacou · Accepted Answer · 2015-11-06 14:32:10Z

0

Removing the [#?] markers as early as you do in your question, means that you lose essential information to make the required text adjustments later. The basic template of your input is:

[#?] HYPERLINK *target* [#?] [#?] *clickable textual description of link* [#?]

So why don't you use those markers to your advantage?

Some regexp like this (NOTE: not tested, probably wrong, but just to give you the basic idea):

mystring.replaceAll("\\[#\\?\\] HYPERLINK (.*) \\[#\\?\\] \\[#\\?\\] (.*) \\[#\\?\\]", "$2 ($1)");

The above is designed to give you "google page (http://www.google.com)". But I would also question why you want to display it like that. Normally for HTML web pages you want it to be <a href="http://www.google.com">google page</a>. To do that, just change the above code.

edited Nov 6, 2015 at 14:32

answered Nov 6, 2015 at 12:46

Klitos Kyriacou

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