How to replace "@" post tag with regex in PHP?

How to replace "@" post tag with regex in PHP?

By : AlexL
Date : November 22 2020, 03:01 PM
wish of those help Try using preg_replace with the pattern /@([^ ]*)/, which will allow you to capture the keyword username to be used in the replacement you want.
code :
$input = "aaaaa @username bbbb cc ddddddd";
$output = preg_replace("/@([^ ]*)/", "<a href=\"/$1/\">@$1</a>", $input);
echo $output;
aaaaa <a href="/username/">@username</a> bbbb cc ddddddd

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Replace "Environment.NewLine" inside a <div class="text"> with Regex

Replace "Environment.NewLine" inside a <div class="text"> with Regex

By : bobyrews
Date : March 29 2020, 07:55 AM
Any of those help I was asking myself if it possible to replace all the Environment.NewLine in a specific div with Regex? I tried some regex by myself but I didn't succeed in it. By the way, I know it's not the right way to parse HTML with Regex.
code :
  @"(?<=<div class=""text"">.*?)((?<!\n)\r\n|\n\r|\r|\n)(?=.*?</div>)", 
Use regex to replace "function" in string and use option="value" pairs within

Use regex to replace "function" in string and use option="value" pairs within

By : Diego Manuel Benitez
Date : March 29 2020, 07:55 AM
it should still fix some issue You can't. Sorry, but it's that simple. Most regex engines do not support capturing multiple values with a single capturing group. Which is equivalent to say, most regex engine support only a finite and fixed number of captures. .NET is the big exception here. But you are using PCRE - and PCRE will always return the last capture for each group (see here, official citation pending; but google for "PCRE repeated capturing group", all sources agree). And the number if groups is fixed by the number of parentheses in your pattern. Sometimes there are possible work arounds, where you transform your repeated captures into repeated matches, but I think that is not applicable either in your case.
So your solution is really the right way to go about it. You match the whole {{...}} block, and then parse out the key-value pairs within the callback separately.
Why String.replaceAll() in java requires 4 slashes "\\\\" in regex to actually replace "\"?

Why String.replaceAll() in java requires 4 slashes "\\\\" in regex to actually replace "\"?

By : Yael De Gale
Date : March 29 2020, 07:55 AM
I wish did fix the issue. @Peter Lawrey's answer describes the mechanics. The "problem" is that backslash is an escape character in both Java string literals, and in the mini-language of regexes. So when you use a string literal to represent a regex, there are two sets of escaping to consider ... depending on what you want the regex to mean.
But why is it like that?
Replace deprecated jQuery "live" to "on" format using RegEx?

Replace deprecated jQuery "live" to "on" format using RegEx?

By : user2448557
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , For the first case, with the string selectors, you'd want to
find \$\(\s*(["'][^"']*['"])\s*\)\.live\(([^,]*)
JavaScript + Regex:: Replace "foo" with "bar" across entire document, excluding URLs

JavaScript + Regex:: Replace "foo" with "bar" across entire document, excluding URLs

By : Chenyang Xie
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Yeah, you're not going to want to use regex to do this. What you want to do is replace the text of every text node in your DOM tree. Try something like this.
code :
var allElements = document.getElementsByTagName("*"); // Get every element.

for (var i = 0; i < allElements.length; i++) { 
    var children = allElements.item(i).childNodes; 

    for (var j = 0; j < children.length; j++) { 
        if (children[j].nodeType === 3 /* is this node a text node? */) { 
            children[j].nodeValue = children[j].nodeValue.replace(/* run your replacement regex here */). 
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