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• How to enter decimal/binary numbers when creating byte objects in python?

  - by Eric

  I'm using python 3.1.1. I know that I can create byte objects using the byte literal in the form of b'...'. In these byte objects, each byte can be represented as a character(in ascii code if I'm not wrong) or as a hexadecimal/octal number. Hexadecimal and octal numbers can be entered using an escape of \x for hexadecimal numbers and just a \ for octal numbers. However, there's no escape sequences for decimal or binary numbers. Is there any way to enter them into byte objects?

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• Convert Python 3.x snippet to C#/LINQ.

  - by Hamish Grubijan

  I want to sort elements of a HashSet<string> and join them by a ; character. Python interpreter version: >>> st = {'jhg', 'uywer', 'nbcm', 'utr'} >>> strng = ';'.join(sorted(s)) >>> strng 'ASD;anmbh;ashgg;jhghjg' C# signature of a method I seek: private string getVersionsSorted(HashSet<string> versions); I can do this without using Linq, but I really want to learn it better. Many thanks!

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• Difference of answers while using split function in Ruby

  - by N L

  Given the following inputs: line1 = "Hey | Hello | Good | Morning" line2 = "Hey , Hello , Good , Morning" file1=length1=name1=title1=nil Using ',' to split the string as follows: file1, length1, name1, title1 = line2.split(/,\s*/) I get the following output: puts file1,length1,name1,title1 >Hey >Hello >Good >Morning However, using '|' to split the string I receive a different output: file1, length1, name1, title1 = line2.split(/|\s*/) puts file1,length1,name1,title1 >H >e >y Both the strings are same except the separating symbol (a comma in first case and a pipe in second case). The format of the split function I am using is also the same except, of course, for the delimiting character. What causes this variation?

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• Dynamic Column lookup with different pages in excel

  - by CinCity

  I have a multi page spread sheet in excel that needs to read information dynamically from columns on other pages and have these values show up on a main page. This is the formula I'm using: =IF(VLOOKUP($B:$B,'CP01'!$B:$BN,3,FALSE)="r","r", IF(VLOOKUP($B:$B,'CP01'!$B:$BN,3,FALSE)="a","a","")) CP01 is a sheet in the excel file and instead of look at the specific sheet I want it to look at all of the sheets in the file. Is there a way to do this as an excel formula or with excel-VBA? Edit: I also tried CP* (* being a wildcard character) and it didn't work. Edit2: Is there a way to match the value where the 'CP' is placed with its a other columns value?

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• Recursively looping through a drive and replacing illegal characters

  - by yeahumok

  Hi I have to create an app that drills into a specific drive, reads all file names and replaces illegal SharePoint characters with underscores. The illegal characters I am referring to are: ~ # % & * {} / \ | : <> ? - "" Can someone provide either a link to code or code itself on how to do this? I am VERY new to C# and need all the help i can possibly get. I have researched code on recursively drilling through a drive but i am not sure how to put the character replace and the recursive looping together. Please help!

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• RegularExpressionValidator always fails, but ValidationExpression works in testing

  - by Jerph

  I found the answer to this, but it's a bit of a gotcha so I wanted to share it here. I have a regular expression that validates passwords. They should be 7 to 60 characters with at least one numeric and one alpha character. Pretty standard. I used positive lookaheads (the (?= operator) to implement it: (?=^.{7,60}$)(?=.*[0-9].*)(?=.*[a-zA-Z].*) I checked this expression in my unit tests using Regex.IsMatch(), and it worked fine. However, when I use it in a RegularExpressionValidator, it always fails. Why?

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• How can I strip line breaks from my XML with XSLT?

  - by Eric

  I have this XSLT: <xsl:strip-space elements="*" /> <xsl:template match="math"> <img class="math"> <xsl:attribute name="src">http://latex.codecogs.com/gif.latex?<xsl:value-of select="text()" /></xsl:attribute> </img> </xsl:template> Which is being applied to this XML (notice the line break): <math>\text{average} = \alpha \times \text{data} + (1-\alpha) \times \text{average}</math> Unfortunately, the transform creates this: <img class="math" src="http://latex.codecogs.com/gif.latex?\text{average} = \alpha \times \text{data} + (1-\alpha) \times&#10;&#9;&#9;&#9;&#9;&#9;\text{average}" /> Notice the whitespace character literals. Although it works, it's awfully messy. How can I prevent this?

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• reading unicode

  - by user121196

  I'm using java io to retrieve text from a server that might output character such as é. then output it using System.err, they turn out to be '?'. I am using UTF8 encoding. what's wrong? int len=0; char[]buffer=new char[1024]; OutputStream os = sock.getOutputStream(); InputStream is = sock.getInputStream(); os.write(query.getBytes("UTF8"));//iso8859_1")); Reader reader = new InputStreamReader(is, Charset.forName("UTF-8")); do{ len = reader.read(buffer); if (len0) { if(outstring==null)outstring=new StringBuffer(); outstring.append(buffer,0,len); } }while(len0); System.err.println(outstring);

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• Excel VBA : Changing string in cells

  - by user1265125

  I have cells with data like these: ABCD123XYZ MPOP345MLU . . . . What I want to do is, to remove the 3rd and 4th character from all these cells, hence giving AB123XYZ MP345MLU How do I do this in VBA? I have no idea about this language, and if someone can guide me in the right direction, it'd be great :) I understand I have to: 1. Declare 2 string variables st1 and st2 2. Store data from cell A1 into the variable st1 3. Copy all but the 2nd and 3rd char into str2 4. Output Str2 into B1 5. Move to A2

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• MySQL Accept Any Password

  - by George

  Suppose that I have a test server with a large group of test accounts. The test accounts have unknown passwords which are hard-coded into the application's reports and are stored encrypted in the mysql.users table. Is there any option or hack which can be used to make mysql accept any text as the "correct" password for an account? For example: Update mysql.user Set Password="*" where 1=1 Note: The above line wouldn't work because it would literally set the password to "*" and not the wildcard character. However, I am looking for a way to create a mysql account which would accept anything as a valid password. This machine is disconnected from the network and I have full access to the mysql database...

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• c++ strings and file input

  - by Dalton Conley

  Ok, its been a while since I've done any file input or string manipulation but what I'm attempting to do is as follows while(infile >> word) { for(int i = 0; i < word.length(); i++) { if(word[i] == '\n') { cout << "Found a new line" << endl; lineNumber++; } if(!isalpha(word[i])) { word.erase(i); } if(islower(word[i])) word[i] = toupper(word[i]); } } Now I assume this is not working because skips the new line character?? If so, whats a better way to do this.

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• ASP.NET MVC2 - Trim white space from form submits before server-side validation?

  - by David Lively

  If I add a validation attribute: public class ProductDownloadListModel { //xxxxx-xxxxx-xxxxx [Required] [StringLength(17)] public string PSN { get; set; } public DateTime PsnExpirationDate { get; set; } public DataTable Downloads { get; set; } } and the user enters a 17-character string but includes white space on the end, I get a validation error because the string is greater than that specified by the [StringLength(17)] attribute. How can I prevent this? I'd prefer not to have to have javaScript trim the string before submits.

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• Fortran - String with unknown characters into substrings

  - by Masoud

  I am trying to put an input string into sub-string arrays. The number of data in the input file are less than 10 but unknown. The number of spaces between each data is also unclear. Example: Asd B Cwqe21 Ddsw Eww I am quite novice to Fortran, so I do not know which format I should use. My problem is that I do not know the number of data (here I assumed that there are 5), so how can I make the code work? I tried the following which did not work: CHARACTER (LEN=100), DIMENSION(10) :: string READ (1,*) (string,I=1,10) It seems that the error I got was because there was no 6th string to read and put into string(6). I tried using the "Index" to find the space, but since I do not know how many spaces are in the string, it did not help me.

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• Deterministic random number generator with context?

  - by user653133

  I am looking for a seeded random number generator that creates a pool of numbers as a context. It doesn't have to be too good. It is used for a game, but it is important, that each instance of the Game Engine has it's own pool of numbers, so that different game instances or even other parts of the game that use random numbers don't break the deterministic character of the generated numbers. Currently I am using rand() which obviously doesn't have this feature. Are there any c or objective-c generators that are capable of doing what I want? Best regards, Michael

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• Repeating characters in VIM insert mode

  - by Cthutu

  Is there a way of repeating a character while in Vim's insert mode? For example, say I would like to insert 80 dashes, in something like emacs I would type: Ctrl+U 8 0 - The only way I know how to do it in VIM is to exit normal mode for the repeat argument, then go back into insert mode to type the dash, then exit to insert the actual dashes, AND then go back into insert mode to carry on typing. The sequence is a really long: <ESC> 8 0 a - <ESC> a It would be nice not to switch in and out of modes. Thanks

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• Strange problem installing a setup that I have just created.

  - by robUK

  Hello, I have both VS 2005 and 2008 installed. Just today I created a setup project in 2005 and I got this error when I tried to installed it. "The folder path 'http://sharingcentre.info' contains an invalid character." So I decided to create a simple project and added a new setup in 2005 and got the same problem. I then converted the project to 2008 and added another new setup. The same problem happened again. However, a previous setup project I created before work ok. I can install my application. Its only from today I cannot install any of my new setup projects. Using either 2005 and 2008. Has anyone else had this same problem. Searching google doesn't give me any real responses, I give the error message is too vague. many thanks for any suggestions,

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• Replace multible data codes in a datafram with names

  - by Shabana

  I have a problem in replacing codes in a dataframe of 3890 observations. My dataframe has a character variable df$IJN which contains values from 1 to 27. I would like to replace these with meaningful data as follow If(1 OR 6 OR 10 OR 14 OR 18 OR 22 OR 26) should be replaced with UL. If(3 OR 7 OR 11 OR 15 OR 19 OR 23 OR 27) should be replaced with LL. If(4 OR 8 OR 12 OR 16 OR 20 OR 24) should be replaced with UR. If(5 OR 9 OR 13 OR 17 OR 21 OR 25) should be replaced with LR. (U,L,R,and L Refer to Upper, Lower, Right, and Left sites in the order) I thought of a for() with if() could not manage with it Also thought of df[which(df=="27")] ="LL" may work one by one not sure! Any help please. R v3.1 - Windows 7 E-H Shabana, Paris.

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• RBF neural networks

  - by Infinity

  Hello guys! I would like to apply RBF neural networks to teach my system. I have a system with an input: | 1 2 3 4 5 6 ... 32 | 33 | | 1000 0001 0010 0100 1000 1000 ... 0100 | 0 0 1 | You have to read this without the "|" character. I just wanted you to see that the last three elements in the input are staying together. The result have to be a number between 1-32, which has the value "1000" in the input. In my training set I will always have a result for an array of this kind. What kind of functions can I use for the teaching algorithm? Can you point me please to the right way? If you can't understand my description please don't hesitate to ask about it. Thank you guys for your help!

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• Is there a way to include commas in CSV columns without breaking the formatting?

  - by editor

  I've got a two column CSV with a name and a number. Some people's name use commas, for example "Joe Blow, CFA." This comma breaks the CSV format, since it's interpreted as a new column. I've read up and the most common prescription seems to be replacing that character, or replacing the delimiter, with a new value (e.g. "this|that|the, other"). I'd really like to keep the comma separator (I know excel supports other delimiters but other interpreters may not). I'd also like to keep the comma in the name, as "Joe Blow| CFA" looks pretty silly. Is there a way to include commas in CSV columns without breaking the formatting, for example by escaping them?

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• C Newbie, ascii control function

  - by user570607

  Hey there, I have written a program that works well in C that converts non-readable ASCII to their character values. I would appreciate if a C master? would show me a better way of doing it that I have currently done, mainly this section: if (isascii(ch)) { switch (ch) { case 0: printControl("NUL"); break; case 1: printControl("SOH"); break; .. etc (32 in total) case default: putchar(ch); break; } } Is it normal to make a switch that big? Or should I be using some other method (input from an ascii table?)

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• Identifying control characters in Perl

  - by sganesh

  Actually, I am doing one project. In that I want to implement the command line features as like in linux terminal. And I saw this in ftp command also. If I press tab I need to list the commands. If I press control characters I need to get that characters based on that I will do some action. And If I give any commands it should execute. For this I tried with Term::ReadKey that is non canonical mode. But here I am facing more problems like, If I press any control character or arrow I got three characters. Ex: for up arrow I got ascii as 279165. Can anyone help me out of this problem? And I feel that there will be a better solution for this. Thanks in Advance.

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• (.*) instead of (.*?)

  - by EBAGHAKI

  Suppose we have this html content, and we are willing to get Content1, Content2,.. with regular expression. <li>Content1</li> <li>Content2</li> <li>Content3</li> <li>Content4</li> If I use the line below preg_match_all('/<li>(.*)<\/li>/', $text, $result); i will get an array with a single row containing: Content1</li> <li>Content2</li> <li>Content3</li> <li>Content4 And by using this code: preg_match_all('/<li>(.*?)<\/li>/', $text, $result); i will get an array with 4 row containing Content1, Content2, ... Why (.*) is not working since it means match any character zero or more times

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• Iphone 3d games using Open Gl Es

  - by Dave

  Hi, I want to make 3d games for the iphone and with all this doubt about Unity and Apples new sdk agreement I'm wondering what the best way forward is? A lot of people recommend opengl es and point me in the direction of the open gl es bible and likewise, the problem is none of this actually talk about setting a game up i.e loading a character, scene , AI etc. Yet a lot of people are using Open GL es please could someone help me out, I really feel like I'm missing out on something. Are there any good tutorials/books that cover this? Thanks,

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• Strange postgresql behavior

  - by Sergey

  Hi can someone explain me why it works like this? = select client_id from clients_to_delete; ERROR: column "client_id" does not exist at character 8 but, when putting this inside an IN()... = select * from orders where client_id in(select client_id from clients_to_delete); it works! and select all rows in the orders table. Same when running delete/update. Why it doesn't produce an error like before? Thank you!

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• Are where any Visual Studio addings for true 'smart tabs'?

  - by Eye of Hell

  Hello. 'Smart Tabs' concept allows to automatically insert tab character for block indentation and space characters for in-block formatting. It's described here. Unfortunately, Visual Studio's 'smart tabs' option in text editor settings just indents text on enter press. Same name, completely different and near useless thing :). So, maybe someone knows of a visual studio addin that can change how 'tab' key work so it will insert tab characters and space characters according to rules mentioned above? Any hints are welcome.

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