regex

C regex problem

Hi, all! Q1.I want to match "&JOY" in a user input string, for example, "bla bla &JOY bla bla &JOY blabla" How can I write the regex expression for this, and are there any C regex functions could return all the positions where the matches happen? Q2.If I want to substitute &JOY with another string is there a convenient C function to do t...

asp.net regex.replace()

Hello, I have the following code to first remove html tags and then highlight the search term within the resulting text: protected void ListView1_ItemDataBound(object sender, ListViewItemEventArgs e) { try { // get search value query string string searchText = Request.QueryString["search"].Trim(); string ...

How can I match against multiple regexes in Perl?

I would like to check whether some string match any of a given set of regexes. How can I do that? ...

change string to match regex

Is it possible ( or why not possible ) to convert input string to a string that match regex in least Levenshtein distance ? i.e. if 1234 is string and ^([0-9]{6})$ is regex, i need output something like 123412 ( output string matches the regex and is 2 distance from original string, there may be other string but first result will do ) ...

How can I match subdirectory paths using a regex in Perl?

I would like to match paths like /this/is/my/dir/name/anything but not /this/is/my/dir/name/anything/anything2. In other words, I want to match all files and sub directories on the first level under `/this/is/my/dir/name/, but not anything on lower levels. ...

Perl metaprogramming: when is it unsafe to use quotemeta on the REPLACEMENT value of s///?

Perl's quotemeta operator typically works on the SEARCH side of s///, but in generating code to be compiled with eval, how should I protect the REPLACEMENT that should be used literally but may contain bits such as $1? With code of the form my $replace = quotemeta $literal_replacement; my $code = eval <<EOCode; sub { s/.../$replace/...

using xpaths in javascript

I have a large set of XPaths for selecting content in webpages and I want users to be able to use them in the browser (including IE). What do you recommend? Try and interpret the XPaths with JavaScript? Or perhaps convert to regex? Some existing JavaScript XPath work: http://js-xpath.sourceforge.net/xpath-example.html http://goog-aja...

What's the best way to modify StringTokenizer output for only English words that would be needed in a full text search?

To add full text search to my App Engine app I've added the following field to my model: private List<String> fullText; To test the search, I took the following text: Oxandrolone is a synthetic anabolic steroid derived from dihydrotestosterone by substituting 2nd carbon atom for oxygen (O). It is widely known for its exceptionally s...

Explain Ruby Commify large integer method

I found this snippet online and the purpose is to commify any number including numbers with decimals ... 99999999 => 99,999,999. I can see that it uses regex but I am confused by "$1.reverse, $2" def commify(n) n.to_s =~ /([^\.]*)(\..*)?/ int, dec = $1.reverse, $2 ? $2 : "" while int.gsub!(/(,|\.|^)(\d{3})(\d)/, '\1\2,\3') end ...

In Emacs, how to use align-regexp to align <- and = together

I've tried, with M-x align-regexp: <-|= (<-|=) \(<-|=\) \\(<-|=\\) And the ones with <- and = reversed. But none work? Example code as follows: (flags, params, errs) <- parseArgs <$> getArgs let options = foldr id [] flags -- Apply functions to list ...

Can you put a variable in a regexp?

I'm trying to validate wether a Model.category equals any existing Category name unless Category.exists?(:name => self.category.downcase) I had to put downcase in this to ensure all of them were downcased so they could match up as strings. But its a big server hit to update the attribute before_save, and I was thinking of just matchin...

Parsing a string of, whitespace separated, ordered but optional elements

This is a generalization of a specific problem I am trying to solve. Given a string of uniquely identifiable elements separated by a single space: 0 1 2 3 4 Without modifying the string, what regular expression will match this expression when any of the numbers are optional except one and the numbers are in order? Examples of other ...

Modify regex code, only one line

I have this code Dim parts As New List(Of String)(Regex.Split(RichTextBox2.Text, "~\d")) That splits lines in this format into parts: ~1Hello~2~3Bye~4~5Morning~6 So if I do MsgBox(parts(5)), it will show me "Morning". I want to do the exact same thing, but now my line is arranged like this: Hello, Bye, Morning, ...

Replace comma in parentheses using regex in java

I want to replace comma when its inside parentheses only. For Example Progamming languages (Java, C#, Perl) TO Progamming languages (Java or C# or Perl) but it should not repace comma in following string Progamming languages Java, C#, Perl CODE It will replace correctly but its not matching up. String test = "Progamm...

Including a hyphen in a regex character bracket?

$.validator.addMethod('AZ09_', function (value) { return /^[a-zA-Z0-9.-_]+$/.test(value); }, 'Only letters, numbers, and _-. are allowed'); When I use somehting like test-123 it still triggers as if the hyphen is invalid. I tried \- and -- ...

Ruby Regex: Math on Backreferences

I need to replace all minutes with hours in a file. Assume a raw file like this: 120m 90m Should change to: 2h 1.5h ...

php create array out of string one per line

i got a $str ="sometxt<br>another<br>moretext<br>evenmoretext<br>"; i'm trying to output the string in one array per line. kinda like this.. [0] => Array (['stuff'] => sometext ) [1] => Array (['stuff'] => another ) [2] => Array (['stuff'] => moretext ) [3] => Array (['stuff']...

RegEx match text in between delimiters

I need a regex that extract text inside a delimiter but I'm having problem extracting the value inside the delimiter [DATA n] and [END DATA] Here's my regex (?<=\[DATA\s+\d+\]).*(?=\[END DATA\]) Here's example data I want to match Some text here [DATA 1] data one some more data [END DATA] [DATA 2] data two more data data [END DAT...

Simple Perl Regex parser

Hey, I am working on a very basic parser. I am almost certain that my regex is correct, but values do not seem to be being stored in my $1 and $2. Am I doing something wrong? I am just looking for tips to alter my code. Thanks for any advice! Also, I am new to Perl, so if I did something wrong, I am looking to get off on the right foot a...

Regex to extract timestamp from a text in PHP

Hey guys, I have the following bit of text (or some similar variation of it): Recurring Event First start: 2010-09-16 17:00:00 EDT Duration: 4800 Event Status: confirmed I need to select the timestamp of the "First Start" field and the duration. Normally I would split the string at the colons, but since the tim...