<div>
The ? in (<a href="http://)?" rel="ugc">http://)?</a> makes the match of <a href="http://" rel="ugc nofollow">http://</a>&nbsp;optional<br />
The ? in ([\w-]+\.)? makes the match of [\w-]+\. optional<br />
The ? in ([:/].*)? makes the match of [:/].* optional
</div>


The ? in (http://)? [http://)?] makes the match of http:// [http://] optional
The ? in ([\w-]+\.)? makes the match of [\w-]+\. optional
The ? in ([:/].*)? makes the match of [:/].* optional

<div>
Tks<br />
<br />
([:/].*)? &nbsp;-<br />
<br />
For &quot;.*&quot; , &nbsp;what does it actually mean ?<br />
. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Matches any single character except a new line character<br />
* &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Matches preceding element zero or more times
</div>


Tks

([:/].*)?  -

For ".*" ,  what does it actually mean ?
.            Matches any single character except a new line character
*            Matches preceding element zero or more times

<div>
This matches any string which does not contain a new line. As it is zero or more times it will also match empty strings
</div>


This matches any string which does not contain a new line. As it is zero or more times it will also match empty strings

<div>
<div class="content wysiwyg-content">
&quot;(<a href="http://)?(" rel="ugc">http://)?(</a>[\w-]+\.)([\w-]+\.)?([\w<wbr />-]+)([:/].<wbr />*)?&quot;<br />
<br />
To verify my understanding, the submatch is<br />
1. (<a href="http://)?" rel="ugc">http://)?</a><br />
2. ([\w-]+\.)<br />
3. ([\w-]+\.)?<br />
4. ([\w-]+)<br />
5. ([:/].*)?<br />
<br />
The division of &quot;?&quot; is following the matching expression in each portion, correct ?<br />
<br />
For the 5th submatch : ([:/].*)?, &quot;?&quot; mean zero or more for the expression within (). but what does &quot;.*&quot; mean ? Tks<br />
<br />
<br />
Tks
</div>
</div>


"(http://)?([\w-]+\.)([\w-]+\.)?([\w-]+)([:/].*)?"

To verify my understanding, the submatch is
1. (http://)?
2. ([\w-]+\.)
3. ([\w-]+\.)?
4. ([\w-]+)
5. ([:/].*)?

The division of "?" is following the matching expression in each portion, correct ?

For the 5th submatch : ([:/].*)?, "?" mean zero or more for the expression within (). but what does ".*" mean ? Tks


Tks

Regex Expression in VBA

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.

Microsoft Excel

VBScript (Visual Basic Scripting Edition) is an interpreted scripting language developed by Microsoft that is modeled on Visual Basic, but with some important differences. VBScript is commonly used for automating administrative and other tasks in Windows operating systems (by means of the Windows Script Host) and for server-side scripting in ASP web applications. It is also used for client-side scripting in Internet Explorer, specifically in intranet web applications.

VB Script

Visual Basic is Microsoft’s event-driven programming language and integrated development environment (IDE) for its Component Object Model (COM) programming model. It is relatively easy to learn and use because of its graphical development features and BASIC heritage. It has been replaced with VB.NET, and is very similar to VBA (Visual Basic for Applications), the programming language for the Microsoft Office product line.