I'm trying to create a perl regular expression that matches a URL that is not preceded by an equal sign and one single or double quote (optional) ignoring whitespace. The code below gives an error: Warning: preg_replace(): Compilation failed: lookbehind…
I'm using the following IIS Rewrite Rule to block as many bots as possible. <rule name="BotBlock" stopProcessing="true"> <match url=".*" /> <conditions> <add input="{HTTP_USER_AGENT}" pattern="^$|bot|crawl|spider" /> </conditions> <action type="CustomResponse" statusCode="403" statusReason="Forbidden" statusDescription="Forbidden" /> </rule> This rule blocks all requests with an…
I have this regex that works perfectly with PHP: $que = preg_replace("/(?<=^| )([a-z])\1*(?= |$)K|([a-z])(?=\2)/","$3",$que); This regex removes repeated chars inside strings (for example, axxd becomes axd however xxx will still become xxx). The problem that I am facing, is because…
I have a Regular Expression .*/(d+)(?![^(]*)) that it works in other program e.g., C#. And I want to use it in MYSQL, and it return error SELECT REGEXP_SUBSTR(myStr, '.*/(d+)(?![^(]*))'), c.* FROM mytable c; /* SQL Error (1139): Regex error 'unmatched…
I have a string that looks like this: '"a": "...", "b": "...", "c": "...", "d": "...", "text": "Part to access and modify", "f": "...", "g": "..."' And i would like to access to the text after '"text":'. The way I…
I want to add functionality for user to add First name or Last name in any language for Eg. Spanish, French and Chinese. Right now I am using this RegEx: var firstNameRegex = /^[a-zA-Zu3000u3400-u4DBFu4E00-u9FFFu00C0-u017F-'s]{1,45}$/; But this is only working for…
I recently came across a code snippet (a joke) where the test() method of JavaScript's RegExp object was used with an empty object as an argument. Here's the code: console.log(new RegExp({}).test('mom')); // true console.log(new RegExp({}).test('dad')); // false Can someone explain…
I would like to match everything between start and end given the following string: const test = `this is the start a b c e f end g h `; I have the following regex const output = test.match(/start((.|n)*)end/m); No,…
How can I define a regex that groups a number into threes excluding decimals? Example 1123456789 -> ["1","123","456","789"] 1123456789.999 -> ["1","123","456","789"] I've tried this Regex: /d{1,3}(?=(d{3})*$)/g But it outputs the following: 1123456789 -> ["1","123","456","789"] 1123456789.999 -> ["999"] Edit: removed _…
I'm receiving a string from user for fields lable that can contain special characters and HTML tag as well. Examples: How will you be attending the event? select Education Level <i>some instruction</i> I want to trim the string before any…