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Using regular expressions to parse HTML: why not?

... (From http://htmlparsing.com/regexes) Say you've got a file of HTML where you're trying to extract URLs from <img> tags. <img src="http://example.com/whatever.jpg"> So you write a regex like this in Perl: if ( $htm...
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How to get list of all installed packages along with version in composer?

I have been working on a project using Symfony 2.1 on my local machine. I have uploaded it to my server but when I try and install the vendor bundles using Composer, I'm getting a lot of dependency errors. Presumably this is something to do with the latest version of Symfony just being released an...
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Good tutorials on XMPP? [closed]

... at some open-source XMPP servers, and am familiar with the official page http://xmpp.org/ . But thus far I've not found anything in between " The Extensible Messaging and Presence Protocol (XMPP) is an open technology for real-time communication " and a list of XEP specifications. For instance art...
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Convert nullable bool? to bool

How do you convert a nullable bool? to bool in C#? 11 Answers 11 ...
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receiving error: 'Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN' while using npm

...pting to install any new modules via npm (I tested socket.io earlier using http, not https though & am wondering if that could have resulted in the issue with npm/unsigned certs). The error pops up once npm tries to resolve the ' https://registry.npmjs.org ' URL. Is there anyway I can ignore the e...
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Why would one use nested classes in C++?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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C: differences between char pointer and array [duplicate]

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How can I embed a YouTube video on GitHub wiki pages?

...u can put an image which links to a YouTube video: [![IMAGE ALT TEXT HERE](https://img.youtube.com/vi/YOUTUBE_VIDEO_ID_HERE/0.jpg)](https://www.youtube.com/watch?v=YOUTUBE_VIDEO_ID_HERE) For more information about Markdown look at this Markdown cheatsheet on GitHub. For more information about Yout...
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How to use getJSON, sending data with post method?

... The $.getJSON() method does an HTTP GET and not POST. You need to use $.post() $.post(url, dataToBeSent, function(data, textStatus) { //data contains the JSON object //textStatus contains the status: success, error, etc }, "json"); In that call, da...
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Boolean operators && and ||

...for || when the first operand is true. You can read more about this here: http://en.wikipedia.org/wiki/Short-circuit_evaluation From the table on that page you can see that && is equivalent to AndAlso in VB.NET, which I assume you are referring to. ...