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• regular expressions for class name

  - by user576701

  i need a regular expressions string to get all anchor tags in a page with a specific css class name, in c#/vb.net this is what i got so far "<a.*?href=""(.*?)"".*?>(.*?)</a>" but my attempts to add "class=name" isnt working, also is it possible to find links where the class name appears either before or after the href with one expression ? i am familiar with 3rd party html libraries, but thats an overkill for what i have in mind, so is the webbrowser control.

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• SSRS - Sort table based on column value

  - by Ehsan

  I am trying to sort the following table: hYear hSale ------------------------------------ [year] =Count(Fields!sale.Value) The table only has one row group (year) and no column group. I'd like to: -initially sort the table based on the calculated value; is it possible? -add interactive sort to calculated column based on the value. I assume I should sort 'Detail rows', but what will be the sort expression?

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• InfoPath: How to display a third column of a datasource?

  - by Michael Bray

  I have an InfoPath 2007 browser-enabled form that has a datasource with three columns, let's say columns A, B, and C. I have a dropdown that is keyed to column A and displays column B. Column C contains some data that I want to display in an expression box, and that I also want to use in some data validation against another field on the form. I'm looking for some help on how to reference that column C for displaying and use in validation. Thanks!

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• When is `x IS NOT NULL` not the same as `NOT(x IS NULL)`

  - by Mark Hurd

  For what x is The expression x IS NOT NULL is not equal to NOT(x IS NULL), as is the case in 2VL (quote from this answer, which is quoting Fabian Pascal Practical Issues in Database Management - A Reference for the Thinking Practitioner -- near the end of that answer) My guess is when x IS NULL is NULL, but I cannot guess when that would be (i.e. I haven't checked the SQL standard).

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• C++ WCHAR: Cannot allocate an array of constant size 0

  - by Rosarch

  I'm trying to create a WCHAR: LONG bufferSize = foo.bar() + 1; WCHAR wszBaz[bufferSize]; The compiler issues an error: error C2057: expected constant expression error C2466: cannot allocate an array of constant size 0 error C2133: 'wszBaz' unknown size What am I doing wrong? UPDATE: I added const but it still gives the same error: const LONG bufferSize = foo.bar() + 1; WCHAR wszBaz[bufferSize];

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• Linq List contains specific values.

  - by Raffaeu

  I need to know if the List I am working with contains only some specific values. var list = new List<string> { "First", "Second", "Third" }; If I want to know if the List contain at least one item with the value "First" I use the Any keyword: var result = list.Any(l => l == "First"); But how I can write a Linq expression that will return true/false only if the List contains "First" and "Second" values?

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• Retrieve all hashtags from a tweet in a PHP function

  - by snorpey

  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, using the following regular expression: #\S*\w

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• Restrict characters used in a string

  - by Jeremy Rudd

  How do I restrict a string to whitelisted characters? // "HOW am I to understand; this is, BAD" $str = restrictTo($str,"0-9a-z,. "); // " am I to understand this is, " Is there an inbuilt function in PHP that does something close? I can't formulate a regular expression for this though :(

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• Change a regexp in application.js from rails

  - by Markus

  I wand to change the regular expression in my application.js file from within a rails controller. Is that possible?

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• Negative look ahead java

  - by venu

  I need an expression to capture a string like this "A"[A string that is NOT atleast 5 and atmost 6 digits]"B", In other words capture anything that is NOT the following A[0-9][0-9][0-9][0-9][0-9]B A[0-9][0-9][0-9][0-9][0-9][0-9]B I have tried the negative look ahead regex = "a((?![0-9]{5,6}).)*d" ; But it fails to capture all scenarios. Please help venu

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• Find multiple line spanning text and replace using Powershell

  - by MrGrant

  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-Content $_)) $text -replace $RegEx ,"REPLACED"}

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• Rails: ruby script/generate model, where are the docs?

  - by yar

  I am running ruby script/generate scaffold or ruby script/generate model and I know the basic syntax, like ruby script/generate scaffold Dude name:string face:boolean but I do not know things like: should names of variables have underscores or be camelCased? what kind of variable types are acceptable? Where can I find such information? THANKS! P.S. The answers to my two questions would help for now, too :)

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• How do I perform multiple replacements with Perl?

  - by duenguyen

  I have Perl code: my $s = "The+quick+brown+fox+jumps+over+the+lazy+dog+that+is+my+dog"; I want to replace every + with space and dog with cat. I have this regular expression: $s =~ s/\+(.*)dog/ ${1}cat/g; But, it only matches the first occurrence of + and last dog.

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• Binary string search on one field.

  - by CrazyJoe

  I have 300 boolean fields in one table, and im trying to do somithing like that: One string field: 10000010000100100100100100010001 Ha a simple way to do a simple search os this field like: select * from table where field xor "10000010000100100100000000010001" Im tring this but is to long: select * from teste where mid(info,2,1) and mid(info,3,1) :) Help!!

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• passing Func<TSource, TKey> keySelector error

  - by user338429

  static void Main() { string[] a = { "a", "asd", "bdfsd", "we" }; a = a.OrderBy(fun).ToArray(); } private static int fun(string s) { return s.Length; } its is giving compile time error . I know that we can do this with Lambda expression like this. a.OrderBy(s=>s.Length).ToArray(); but i want to this do by defining different function . What mistake i have done?

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• How to get on which ListView has been a ContextItem selected?

  - by Pentium10

  I have a screen with three listviews, each having three different cursors, but all have the same ContextMenu show/resolve code and when the selection event fires, I want to get the ListView to refresh it. I can't use menuInfo.targetView, as that holds the LinearLayout for the ListView row, and not the ListView. in this method public boolean onContextItemSelected(MenuItem item) How is possible?

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• Integer separated by comma

  - by FrenchiInLa

  What's the best regular expression for integer separated by comma? It can also contain space between comma, and the field is not required which means it could be blank. 123,98549 43446 etc..

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• Haskell Tuple Size Limit

  - by SHiNKiROU

  Why I can't construct large tuples in Haskell? Why there's a tuple size limit? Prelude> (1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1) <interactive>:1:0: No instance for (Show (t, t1, t2, ... t23)) arising from a use of `print' at <interactive>:1:0-48 Possible fix: add an instance declaration for (Show (t, t1, t2, ... t23)) In a stmt of a 'do' expression: print it

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• Function of: if(/(file|http).*/.test(url)) { }

  - by WmasterJ

  I am wondering what this technique is called and what it does. It seems to be validating some regular expression on the variable url. I am customizing another persons code: var url = document.getElementById("editorURL").value; if(/(file|http).*/.test(url)) { } Maybe someone has a link to an article that explains this a bit more in-depth?

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• Custom Control in Silverlight ListBox

  - by jaime

  I have a custom control I created from a expression design I created and exported to xaml. I have put in it a bound itemtemplate/datatemplate of a ListBox contorl. It doesn't seem to be rendering more than once and/or it is rendering each item in the same place(kind of like the same x,y coordinates.

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• Is there a decent technique for SSIS Derived Column date formatting?

  - by theog

  I just had to write the most redonkulous expression in an SSIS Derived Column to get dates formatted like "01-JAN-2010".  It lookes like this:        There's got to be a better way... isn't there?

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• How can i check to see if a specific integer is within a array? For a switch statement.

  - by Tapha

  Is there a specific way to check for a specific integer within a switch statment. For example. $user = $ads[$i]->from_user; To check for the number 2 as $i in the above expression.

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• Converting upper-case string into title-case using Ruby

  - by wsb3383

  Hi, all. I'm trying to convert an all-uppercase string in Ruby into a lower case one, but with each word's first character being upper case. Example: convert "MY STRING HERE" to "My String Here". I know I can use the .downcase method, but that would make everything lower case ("my string here"). I'm scanning all lines in a file and doing this change, so is there a regular expression I can use through ruby to achieve this? Thanks!

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• Search Links on a page

  - by Ravi Vyas

  Hi everyone. I want to search my link on other pages by passing url address. After passing the url it should return some boolean value which will define the existence of my link. Preferred language ASP.net/C# If it is possible, Please help me.

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• Worst aspect of Python for a newbie

  - by schickb

  I'm wondering specifically what experienced programmers thought when they started developing in Python. I'm sure the answer depends on your background, but my own personal answer is the conversion of basically anything in the language to a True/False value in boolean contexts. Resulting in "oddities" like: if x: not meaning the same thing as: if x == True: I understand why, but it bugs me, and I certainly had to think about it a bit when I first ran into it.

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