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• newline in Rackspace Cron Job email

  - by senloe

  I'm running backups against multiple databases hosted at Rackspace. This is working fine. The problem I'm running into is with the results email. I'm using Response.Write to write a message to the web page which is used for logging and is also consumed by the results mail sent out by the job. The problem is I can't seem to get newlines to appear between log messages. The logfile stored on the server is correct, but only the first newline shows up in the email. The mail is in Plain Text format so I tried using "\n" and System.Environment.Newline and neither work. I also tried using <br/> with no luck. Does anybody have any ideas?

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• Return from parent sub in Perl

  - by JS Bangs

  I want to write a subroutine which causes the caller to return under certain conditions. This is meant to be used as a shortcut for validating input to a function. What I have so far is: sub needs($$) { my ($condition, $message) = @_; if (not $condition) { print "$message\n"; # would like to return from the *parent* here } return $condition; } sub run_find { my $arg = shift @_; needs $arg, "arg required" or return; needs exists $lang{$arg}, "No such language: $arg" or return; # etc. } The advantage of returning from the caller in needs would then be to avoid having to write the repetitive or return inside run_find and similar functions.

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• static recursion

  - by yoavstr

  is it possible to write a recursive static function in c lang ?... why ?...

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• Object for storing strings geted from prints

  - by evg

  class MyWriter: def __init__(self, stdout): self.stdout = stdout self.dumps = [] def write(self, text): self.stdout.write(smart_unicode(text).encode('cp1251')) self.dumps.append(text) def close(self): self.stdout.close() writer = MyWriter(sys.stdout) save = sys.stdout sys.stdout = writer I use self.dumps list to store geted data from prints. Is it exists more convinient object for storing string lines in memory? ideally i want dump it to one big string. I can get it like this "\n".join(self.dumps) from code above. Mb it's better to just concat strings - self.dumps += text ?

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• how to get a sub list from a list in ocaml

  - by romerun

  Hi, I'm looking at the List document. It seems the library does not provide a sublist function. I'm trying to get list of elements from i to j. Now I have to write it as: let rec sublist list i j = if i j then [] else (List.nth list i) :: (sublist list (i+1) j) which is quite concise but I'm questioning the efficiency of List.nth, because if it's O(n), I would rather have to write it in a less concise way. I'm wondering why didn't they provide List.sublist func, if List.nth is not O(1), because it's such a quite common operation..

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• Having onFocus do several things.

  - by Jakob

  So I have this input tag <input ... onFocus=...> and what I want is for a warning popup to come up if somebody clicks to write in the input field. After the person has read the warning he/she closes the popup and can continue to write in the field. I have managed to implement the popup just fine but my problem is that I lose focus on the input field when the popup comes up so the next time I click the field the popup comes back again and im back on square one. The system I work on uses php and javascript so and I cannot use anything other than that to solve the problem and my experience with both php and javascript is limited.

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• Can jQuery perform a compound select against the top level only?

  - by harpo

  Basically, is there a way to write a.children('.outer').children('.inner') without the intermediate selector? I can't write $('.outer > .inner', a) because I don't want to do full-depth search against a — I know that the .outer elements are immediate children of a. It's partly a matter of "elegance", but partly because I'm trying to avoid "throwaway" element sets. Yes, jQuery may in effect do the same thing, but it has a better chance of optimizing (at least in theory), when it knows the full query's intent.

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• are Hierarchical SIngletons in Java possible?

  - by Zach H

  I've been toying with an interesting idea (No idea if I'll include it in any code, but it's fun to think about) Let's say we have a program that requires a large number of classes, all of a certain subclass. And those classes all need to be singletons. Now, we could write the singleton pattern for each of those classes, but it seems wasteful to write the same code over and over, and we already have a common base class. It would be really nice to create a getSingleton method of A that when called from a subclass, returns a singleton of the B class (cast to class A for simplicity) class A{ public A getSingleton(){ //Wizardry } } class B extends A{ } A blargh = B.getSingleton() A gish = B.getSingleton() if(A == B) System.out.println("It works!") It seems to me that the way to do this would be to recognize and call B's default constructor (assuming we don't need to pass anything in.) I know a little of the black magic of reflection in Java, but i'm not sure if this can be done. Anyone interested in puzzling over this?

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• youtube api: display speaker statements like a caption

  - by zmol

  I'm doing something similar to close caption but not exactly the same. I have a youtube video, and I want to display certain messages at specific points in the video. When the video loads, I pull entries from the database in the format time and sentence. For example, at 0:20 the speaker says "don't forget to write down my email that you see on the side" and I want to display the email on the side. At 0:50, he says "and I'll post my office hours" so I want to show those office hours at that time. How can I do this. The video itself is hosted on youtube, but is being displayed on a private website. The div where I want to display the messages is <div id="write">.

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• Writing string, numeric data to Excel via C# works, but Excel does not treat numeric data correctly

  - by Chapax

  Hi, I'm getting result sets from Sybase that I return to a C# client. I use the below function to write the result set data to Excel: ***private static void WriteData(Excel.Worksheet worksheet, string cellRef, ref string[,] data) { Excel.Range range = worksheet.get_Range(cellRef, Missing.Value); if (data.GetLength(0) != 0) { range = range.get_Resize(data.GetLength(0), data.GetLength(1)); range.set_Value(Missing.Value, data); } }* The data gets written correctly. The issue is that since I'm using string array to write data (which is a mixture of strings and floats), Excel highlights every cell that contains numeric data with the message "Number Stored as Text". How do I get rid of this issue? Many thanks, Chapax

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• [SQL] Getting the sum of several columns from two tables

  - by romaintaz

  I want to get the sum of several columns from 2 different tables (these tables share the same structure). If I only consider one table, I would write this kind of query: SELECT MONTH_REF, SUM(amount1), SUM(amount2) FROM T_FOO WHERE seller = XXX GROUP BY MONTH_REF; However, I would like to also work with the data from the table T_BAR, and then have a select query that return the following columns: MONTH_REF SUM(T_FOO.amount1) + SUM(T_BAR.amount1) SUM(T_FOO.amount2) + SUM(T_BAR.amount2) everything grouped by the value of MONTH_REF. Note that a record for a given MONTH_REF can be found in one table but not in the other table. In this case, I would like to get the sum of T_FOO.amount1 + 0 (or 0 + T_BAR.amount1). How can I write my SQL query to get this information? For information, my database is Oracle 10g.

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• Sharing base object with inheritance

  - by max

  I have class Base. I'd like to extend its functionality in a class Derived. I was planning to write: class Derived(Base): def __init__(self, base_arg1, base_arg2, derived_arg1, derived_arg2): super().__init__(base_arg1, base_arg2) # ... def derived_method1(self): # ... Sometimes I already have a Base instance, and I want to create a Derived instance based on it, i.e., a Derived instance that shares the Base object (doesn't re-create it from scratch). I thought I could write a static method to do that: b = Base(arg1, arg2) # very large object, expensive to create or copy d = Derived.from_base(b, derived_arg1, derived_arg2) # reuses existing b object but it seems impossible. Either I'm missing a way to make this work, or (more likely) I'm missing a very big reason why it can't be allowed to work. Can someone explain which one it is? [Of course, if I used composition rather than inheritance, this would all be easy to do. But I was hoping to avoid the delegation of all the Base methods to Derived through __getattr__.]

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• How do I bind functions to all input elements using jQuery?

  - by bakkelun

  Hi, let's say I have this set of HTML-markup and CSS #CSS .inputhelp_text { background: #000; color: #fff; } .nodisplay { display: none; } <input class="inputhelp" id="firstname" /><span class="inputhelp_text nodisplay" id="help_firstname">Write in your firstname</span> <input class="inputhelp" id="lastname" /><span class="inputhelp_text nodisplay" id="help_lastname">Write in your lastname</span> Using jQuery, I need to bind a function to all input fields (I guess using jQuery's EACH function) so that when I click the input field, it should switch the class of each span to only "inputhelp_text". I've gotten this to work in two separate functions for each field, but since I have alot of fields, I know there's a better way to solve it. Any suggestions?

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• How to give permission to a directory using command prompt in Windows?

  - by Amitabh

  I have to give permissions (Read, Write, Modify) to a user to a directory using command line in Windows.

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• Is it possible to pass arithmetic operators to a method in java?

  - by drJames

  Right now I'm going to have to write a method that looks like this: public String Calculate(String Operator, Double Operand1, Double Operand2) { if (Operator.equals("+")) { return String.valueOf(Operand1 + Operand2); } else if (Operator.equals("-")) { return String.valueOf(Operand1 - Operand2); } else if (Operator.equals("*")) { return String.valueOf(Operand1 * Operand2); } else { return "error..."; } } It would be nice if I could write the code more like this: public String Calculate(String Operator, Double Operand1, Double Operand2) { return String.valueOf(Operand1 Operator Operand2); } So Operator would replace the Arithmetic Operators (+, -, *, /...) Does anyone know if something like this is possible in java?

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• Writing my first blackberry app

  - by skyeagle

  I am contemplating writing my first blackberry app. I am fundamentally, a C/C++ programmer (not Java), can anyone provide some guidelines on the quickest route (i.e. shallowest learning curve) to writing a blackberry app? Any resources/links would be useful. As an aside: In an ideal world, I would like to write once and deploy for both Blackberry and the iPhone, but since I am targetting largely business people, I guess blackberry should be my target - right? Is it possible to write once and deploy on BOTH iphone and BB?

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• Constructor in Servlet?

  - by cdb

  Can we write an argument constructor in a servlet? if yes, how can you call?

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• python writing a list to a file

  - by gfar90

  I need to write a list to a file in python. I know the list should be converted to a string with the join method, but since I have a tuple I got confused. I tried a lot to change my variables to strings etc, this is one of my first attempts: def perform(text): repository = [("","")] fdist = nltk.FreqDist(some_variable) for c in some_variable: repository.append((c, fdist[c])) return ' '.join(repository) but it gives me the following error: Traceback (most recent call last): File "", line 1, in qe = perform(entfile2) File "", line 14, in perform return ' '.join(repository) TypeError: sequence item 0: expected string, tuple found any ideas how to write the list 'repository' to a file? Thanks!

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• Writing jQuery functions that allow chaining.

  - by Rich Bradshaw

  I want to write some code that allows me to replace jQuery's animate function with one that does different things, but still allows me to call a secondary function on completion. At the moment, I'm writing lots of code like this; if (cssTransitions) { $("#content_box").css("height",0); window.setTimeout(function() { secondFunction(); }, 600); } else { $("#content_box").animate({ height:0 }, 600, function() { secondFunction(); }); } I'd much rather write a function that looks like this: function slideUpContent(object) { if (cssTransitions) { object.css("height",0); // Not sure how I get a callback here } else { $("#content_box").animate({ height:0 }, 600, function() { }); } } That I could use like this: slideUpContent("#content_box", function(){ secondFunction(); }); But I'm not sure how to get the functionality I need - namely a way to run another function once my one has completed. Can anyone help my rather addled brain?

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• call wcf asyncronously from silverlight

  - by punam

  I write wcf with function having enum as a returntpe how to call that from silverlight on combobox selection Help me.

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• Is there a way to force JUnit to fail on ANY unchecked exception, even if swallowed

  - by Uri

  I am using JUnit to write some higher level tests for legacy code that does not have unit tests. Much of this code "swallows" a variety of unchecked exceptions like NullPointerExceptions (e.g., by just printing stack trace and returning null). Therefore the unit test can pass even through there is a cascade of disasters at various points in the lower level code. Is there any way to have a test fail on the first unchecked exception even if they are swallowed? The only alternative I can think of is to write a custom JUnit wrapper that redirects System.err and then analyzes the output for exceptions.

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• iOS Downloading Videos and saving in Application Support folder

  - by Satyam svv

  In my application, i've to download videos around 10 to my application and play accordingly. Each video is around 50 MB. I'm using following code and then after downloading the video, i'm saving it to Application support folder to avoid icloud sync. But the problem is that when downloading the videos its crashing. [NSURLConnection sendAsynchronousRequest:req queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *rcvdDat, NSError * err) { . . . } What I'm thinking is that, while downloading the video, it resides in memory and so the total memory occupying by the app is increasing. Finally iOS is making the app to close. I would like to download the video and when ever a stream of data received, write to temp file and when completes move it to application support folder. Can some one help me on how to write it to file and save it at the end? I cannot use 3rd party libraries (unless its small) due to legal issues.

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• Returning string in java using 3 parameters

  - by user2905118

  Need to write a method describePerson() that takes 3 parameters, a String giving a person’s name, a boolean indicating their gender (true for female, false for male), and an integer giving their age. The method should return a String formatted as in the following examples: Lark is female. She is 2 years old. Or Jay is male. He is 1 year old. I am not sure how to write it correctly (my code): int describePerson(String name, boolean gender, int age) { String words=""; if(gender==true) return (name + "is "+gender+". "+"She is"+age+ "years old.); else return (name + "is "+gender+". "+"She is"+age+ "years old.); } The outcome "year" and "years" is also differs, but i don't know how to make it correct..

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• Which database should I use for best performance

  - by _simon_

  Hello, I am working in Visual Studio 2005, .NET 2.0. I need to write an application, which listens on COM port and saves incoming data to a database. Main feature: save incoming data (series of 13-digits numbers), if this number allready exists, then mark it as double. For example, there could be these records in database: 0000000000001 OK 0000000000002 OK 0000000000002 Double 0000000000003 OK 0000000000004 OK I could use SQL database, but I don't know if it is fast enough... Database should be able to store up to 10.000.000 records and write up to 100 records per minute (so it needs to check 100 times per minute if this record allready exists). Which database should I use? Maybe the whole database would need to be in RAM. Where could I learn more about this? Thanks

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• PHP , What is the difference between fopen r+ and r ! does it matter if i used r+ when not intending

  - by Naughty.Coder

  when I use fopen function , why don't I use r+ always , even when I'm not going to write any thing ... is there a reason for separating writing/reading process from only reading .. like , the file is locked for reading when I use r+ , because i might write new data into it or something ... another question : in php manual a+ : Open for reading and writing; place the file pointer at the end of the file. If the file does not exist, attempt to create it. What is supposed to be read if you are at the end of the file ..(pointer at the end) !!? where to learn more about the filesystem thing .... it's confusing

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