regex

Regex to remove all (non numeric OR period)

I need for text like "joe ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5 ...

Why the following regex does not work in IE?

Why does the following javascript regex works in Firefox but not in IE (tested on IE8). myregexp = eval('/(?:^|;)\s*(\d+)\s*:[^;]*?megason[^;]*/gi'); myregexp.exec('0:QL12345ABC - MEGASONIAC BEST CAFE;'); //returns null in IE8 ...

Conditional Regex Replace in C# without MatchEvaluator

So, Im trying to make a program to rename some files. For the most part, I want them to look like this, [Testing]StupidName - 2[720p].mkv But, I would like to be able to change the format, if so desired. If I use MatchEvaluators, you would have to recompile every time. Thats why I don't want to use the MatchEvaluator. The problem I ha...

replace \n and \r\n with <br /> in java

This has been asked several times for several languages but I can't get it to work. I have a string like this String str = "This is a string.\nThis is a long string."; And I'm trying to replace the \n with <br /> using str = str.replaceAll("(\r\n|\n)", "<br />"); but the \n is not getting replaced. I tried to use this RegEx Tool to...

Find multiple line spanning text and replace using Powershell

Hello, I am using a regular expression search to match up and replace some text. The text can span multiple lines (may or may not have line breaks). Currently I have this: $regex = "\<\?php eval.*?\>" Get-ChildItem -exclude *.bak | Where-Object {$_.Attributes -ne "Directory"} |ForEach-Object { $text = [string]::Join("`n", (Get-Conte...

Is the JavaScript RegExp implicit method deprecated?

So everyone knows what I mean by "implicit methods"? They're like those default properties from the Windows COM days of yore, where you could type something like val = obj(arguments) and it would be interpreted as val = obj.defaultMethod(arguments) I just found out JavaScript has the same thing: the default method of a RegExp obje...

Named captured substring in pcre++

Hello, I want to capture named substring with the pcre++ library. I know the pcre library has the functionality for this, but pcre++ has not implemented this. This is was I have now (just a simple example): pcrepp::Pcre regex("test (?P<groupName>bla)"); if (regex.search("test bla")) { // Get matched group by name int pos = pc...

Is it safe to validate a URL with a regexp?

In my web app I've got a form field where the user can enter an URL. I'm already doing some preliminary client-side validation and I was wondering if I could use a regexp to validate if the entered string is a valid URL. So, two questions: Is it safe to do this with a regexp? A URL is a complex beast, and just like you shouldn't use a ...

Which is the correct shorthand - "regex" or "regexp".

Most of us computer programmers are pretty obsessed about correct terminology. I certainly am, especially because sometimes changing just one character in a word can drastically change its meaning. So... what is the correct shorthand for "regular expression"? Is it "regex" or "regexp"? On the internet I see both uses, although "regex" s...

javascript: a regular expression for "somestring A.B.C(anything can be here)"

Given a string like, "xyz A.B.C.(anything)" (there's at least one space/tab/newline between z and A.) I'd like to find "A.B.C". ...

vim - how am I suppose to read this command to remove all blanks at the end of a line

I happened across this page full of super useful and rather cryptic vim tips at http://rayninfo.co.uk/vimtips.html. I've tried a few of these and I understand what is happening enough to be able to parse it correctly in my head so that I can possibly recreate it later. One I'm having a hard time getting my head wrapped around though ar...

NSString simple pattern matching

Hi all, Mac OS 10.6, Cocoa project, 10.4 compatibility required. (Please note: my knowledge of regex is quite slight) I need to parse NSStrings, for matching cases where the string contains an embedded tag, where the tag format is: [xxxx] Where xxxx are random characters. e.g. "The quick brown [foxy] fox likes sox". In the ab...

How to Practically Split Values from CSV File into MySQL Database

Let's suppose I have the following line in a CSV file (I removed the header row in this example): "500,000",2,50,2,90000 I have a PHP script read the CSV file, break the file into individual lines, and store each line in an array called $linearray. Then, I use a foreach loop to look at each line individually. Within the foreach loop,...

How to substitute into a regular expression group in Python

>>> s = 'foo: "apples", bar: "oranges"' >>> pattern = 'foo: "(.*)"' I want to be able to substitute into the group like this: >>> re.sub(pattern, 'pears', s, group=1) 'foo: "pears", bar: "oranges"' Is there a nice way to do this? ...

JavaScript lazy regex for matching HTML tags

Hi, I'm having a problem writing a regular expression for matching HTML tags. I found a similar entry here, but this didn't quite work in my case. Here's my test string: <div id="div0" class="myclass">here's some text that may include whitespace</div><div id="div1" class="myclass"> and some more here </div> And here's my regex ba...

Reading the text using regular expressions

I want to extract all values from the text line below using regular expressions: (Sales (Type 0 0 0 0 000 0 0 0 0) "Product" "ProductType" "" "0000" "0000") ;;ProductName 000 How to write regular expression for this? am using C#. am using the following code to read the text file string expr = @"^\(Sales \(...

Some problem with regex

hello all in my site users can insert data using tabular format. that table can be of any style. but im using regex to give those tables a standard format of our site.but when im using regex it works well but it is removing colspan. but i need colspan widout it tables looks very odd. will anyone please tell me wats wrong with my regex?? ...

Retrieve all hashtags from a tweet in a PHP function

Hi. I want to retrieve all hashtags from a tweet using a PHP function. I know someone asked a similar question here, but there is no hint how exactly to implement this in PHP. Since I'm not very familiar with regular expressions, don't know how to write a function that returns an array of all hashtags in a tweet. So how do I do this,...

RegEx to match a pattern and exclude a part of the string

Hi, I have got some strings to be matched via RegEx. We have a java application which reads the regex from a config file and takes two groups of strings, number of which are specified in the same config. E.g. CustomAction.523274ca945f.dialogLabel=Executing Custom Code... will be matched with (?m)^(?!#)\s*(\S*)\s*=\s*(\S*.*) What...

What's the regex to solve this problem?

I have an array in PHP with URLs like below: http://example.com/apps/1235554/ http://example.com/apps/apple/ http://example.com/apps/126734 http://example.com/images/a.jpg http://example.com/images/b.jpg http://example.com/apps/2331234/ http://example.com/apps/orange/ How can I separate out these urls and push them to another array us...