    [ -~]

It was [seen here][1]. It matches all ASCII characters from the space to the tilde.

So your implementation would be:

    xxx[ -~]+xxx

  [1]: http://www.catonmat.net/blog/my-favorite-regex/


If you really mean *any* and ASCII (not e.g. all Unicode characters):

    xxx[\x00-\x7F]+xxx

JavaScript example:

    var re = /xxx[\x00-\x7F]+xxx/;
    
    re.test(&#39;xxxabcxxx&#39;)
    // true
    
    re.test(&#39;xxx☃☃☃xxx&#39;)
    // false

Since US-ASCII characters are in the byte range of 0x00–0x7F (0–127):

    xxx[\x00-\x7F]+xxx

Accepts / Matches only ASCII characters 

    /^[\x00-\x7F]*$/

Try using `.+` instead of `[(\w)(\W)(\s)]+`.

Note that this actually includes more than you need - ASCII only defines the first 128 characters.

&lt;code&gt;.&lt;/code&gt; stands for any char, so you write your regex like this:

    xxx.+xxx

Depending on what you mean with &quot;ASCII character&quot; you could simply try:

    xxx.+xxx


    openssl s_client -connect some.https.server:443 -showcerts

is a nice command to run when you want to inspect the server&#39;s certificates and its certificate chain.

Is there a way to run this command when you are behind a HTTP/HTTPS proxy ?



openssl s_client using a proxy

I&#39;ve been working for a while on my Windows Forms project, and I decided to experiment with keyboard shortcuts. After a bit of reading, I figured I had to just write an event handler and bind it to the form&#39;s KeyDown event:

    private void Form1_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.Control &amp;&amp; e.Alt &amp;&amp; e.KeyCode == Keys.O)
        {
            MessageBox.Show(&quot;Ctrl+Alt+O: magic!&quot;);
        }
    }

I did that the good ol&#39; way of opening the Properties panel of the Visual Studio designer, then double-clicking on the KeyDown event of my form to generate the `Form1_KeyDown` event handler. But on testing my application, the form doesn&#39;t respond at all to the &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Alt&lt;/kbd&gt;+&lt;kbd&gt;O&lt;/kbd&gt; keyboard shortcut. The Visual Studio designer did generate the code to bind the event handler to the form though:

    private void InitializeComponent()
    {
        // ...

        this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.Form1_KeyDown);

        // ...
    }

So I tried adding a `Console.WriteLine()` call to the handler to check that it was being called at all, but no luck on that either.

Also, I tried to set a breakpoint on the event binding call (shown just above) and found that the program reaches that breakpoint just fine. But any breakpoints I set within the method definition itself are never reached.

To make sure I was doing the first few steps correctly, I tried repeating them with:

 - **A new form in the same solution.**  
&lt;del&gt;Same issue: the form doesn&#39;t respond when I press my &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Alt&lt;/kbd&gt;+&lt;kbd&gt;O&lt;/kbd&gt; keyboard shortcut and the debugger isn&#39;t even stepping into the event handler.&lt;/del&gt; Tried this again and it works.

 - **A brand new WinForms solution.**  
It works perfectly: the message dialog appears (the `Console.WriteLine()` call also works).

So I&#39;m quite lost here. What&#39;s preventing all the forms in this one project from receiving KeyDown events?

Forms not responding to KeyDown events

What is the regex to match `xxx[any ASCII character here, spaces included]+xxx`?

I am trying `xxx[(\w)(\W)(\s)]+xxx`, but it doesn&#39;t seem to work.



Regex any ASCII character

<p>What is the regex to match <code>xxx[any ASCII character here, spaces included]+xxx</code>?</p>
<p>I am trying <code>xxx[(\w)(\W)(\s)]+xxx</code>, but it doesn't seem to work.</p>


How do I remove all non alphanumeric characters from a string except dash and space characters?

How do I remove all non alphanumeric characters from a string except dash?

    var textTitle = &quot;this is a test&quot;
    var result = textTitle.replace(&#39; &#39;, &#39;%20&#39;);

But the replace functions stops at the first instance of the &quot; &quot; and I get the 

Result : `&quot;this%20is a test&quot;`

Any ideas on where Im going wrong im sure its a simple fix.

JavaScript .replace only replaces first Match

I have written a function for adding emails to newsletter base. Until I&#39;ve added checking validity of sent email it was working flawlessly. Now each time I&#39;m getting &quot;Wrong email&quot; in return. Can anybody see any errors here ? The regex used is :

`\b[\w\.-]+@[\w\.-]+\.\w{2,4}\b` and it is 100% valid (http://gskinner.com/RegExr/), but I may be using it wrong, or it may be some logic error :

    def newsletter_add(request):
        if request.method == &quot;POST&quot;:   
            try:
                e = NewsletterEmails.objects.get(email = request.POST[&#39;email&#39;])
                message = _(u&quot;Email is already added.&quot;)
                type = &quot;error&quot;
            except NewsletterEmails.DoesNotExist:
                if validateEmail(request.POST[&#39;email&#39;]):
                    try:
                        e = NewsletterEmails(email = request.POST[&#39;email&#39;])
                    except DoesNotExist:
                        pass
                    message = _(u&quot;Email added.&quot;)
                    type = &quot;success&quot;
                    e.save()
                else:
                    message = _(u&quot;Wrong email&quot;)
                    type = &quot;error&quot;

    import re
    
    def validateEmail(email):
    	if len(email) &gt; 6:
    		if re.match(&#39;\b[\w\.-]+@[\w\.-]+\.\w{2,4}\b&#39;, email) != None:
    			return 1
    	return 0

Checking validity of email in django/python

I thought it may be `[.\n]+` but that doesn&#39;t seem to work?



Any character including newline - Java Regex

I am wondering if there is a better to represent a fix amount of repeats in a regular expression. For example, if I just want to match exactly 14 letters/digits, I am using `^\w\w\w\w\w\w\w\w\w\w\w\w\w\w$` which will match a word like `UNL075BE499135` and not match `UNL075BE499135AAA`
is there a handy way to do it? In am currently doing it in java but I guess this may apply to other language as well. Thanks in advance.


How to represent a fix number of repeats in regular expression?

Is it possible to draw ASCII diagram using Graphviz?

Something like that:

    digraph
    {
      this -&gt; is
      this -&gt; a
      a -&gt; test
    }

Gives undesired result.

Instead, I would like to get similar ASCII representation:

       this
      /    \
    is      a
            |
           test

How to draw ascii diagrams from dot-files format?


Graphviz and ascii output

I&#39;m reading and parsing an Amazon XML file and while the XML file shows a &#39; , when I try to print it I get the following error:

    &#39;ascii&#39; codec can&#39;t encode character u&#39;\u2019&#39; in position 16: ordinal not in range(128) 

From what I&#39;ve read online thus far, the error is coming from the fact that the XML file is in UTF-8, but Python wants to handle it as an ASCII encoded character. Is there a simple way to make the error go away and have my program print the XML as it reads?

Python Unicode Encode Error

How can I encode my string as ASCII byte array?

Go string to ascii byte array

What was the original historical use of the vertical tab character (`\v` in the C language, ASCII 11)?

Did it ever have a key on a keyboard? How did someone generate it?

Is there any language or system still in use today where the vertical tab character does something interesting and useful?


What is a vertical tab?

I&#39;m trying to parse a file in C# that has field (string) arrays separated by ASCII character codes 0, 1 and 2 (in Visual Basic 6 you can generate these by using Chr(0) or Chr(1) etc.)

I know that for character code 0 in C# you can do the following:

    char separator = &#39;\0&#39;;

But this doesn&#39;t work for character codes 1 and 2?

Content Type	Original Author	Original Content on Stackoverflow
Question	ion	View Question on Stackoverflow
Solution 1 - Regex	luk3thomas	View Answer on Stackoverflow
Solution 2 - Regex	Matthew Flaschen	View Answer on Stackoverflow
Solution 3 - Regex	catwalk	View Answer on Stackoverflow
Solution 4 - Regex	Gumbo	View Answer on Stackoverflow
Solution 5 - Regex	Vaibhav Gaikwad	View Answer on Stackoverflow
Solution 6 - Regex	Mark Byers	View Answer on Stackoverflow
Solution 7 - Regex	m_vitaly	View Answer on Stackoverflow
Solution 8 - Regex	RoToRa	View Answer on Stackoverflow

Regex any ASCII character

Regex Problem Overview

Regex Solutions

Solution 1 - Regex

Solution 2 - Regex

Solution 3 - Regex

Solution 4 - Regex

Solution 5 - Regex

Solution 6 - Regex

Solution 7 - Regex

Solution 8 - Regex

Forms not responding to KeyDown events

openssl s_client using a proxy

Attributions