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• Gravatar XML-RPC request problem in Objective-C

  - by Erik

  Hi all, I'm trying to incorporate some Gravatar functionality using its XML-RPC API in an iPhone app I'm writing. I grabbed the Cocoa XML-RPC Framework by Eric Czarny (http://github.com/eczarny/xmlrpc) and it works well when I tested it with some of the Wordpress methods. However, when I try to use the Gravatar API, I always receive a response of "Error code: -9 Authentication error". I think I'm constructing the request correctly, but I've been wracking my brain and can't seem to figure it out. Maybe someone has some experience with this API or can see what I'm doing wrong. Here's the call: <?xml version="1.0"> <methodCall> <methodName>grav.addresses</methodName> <params> <param><value><string>PASSWORD_HERE</string></value></param> </params> </methodCall> Again, the Cocoa XML-RPC Framework worked like a dream with Wordpress, but it's choking on the Gravatar API for some reason. Thanks for your help.

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• Why is XML Deserilzation not throwing exceptions when it should.

  - by chobo2

  Hi Here is some dummy xml and dummy xml schema I made. schema <?xml version="1.0" encoding="utf-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.domain.com" xmlns="http://www.domain.com" elementFormDefault="qualified"> <xs:element name="vehicles"> <xs:complexType> <xs:sequence> <xs:element name="owner" minOccurs="1" maxOccurs="1"> <xs:simpleType> <xs:restriction base="xs:string"> <xs:minLength value="2" /> <xs:maxLength value="8" /> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="Car" minOccurs="1" maxOccurs="1"> <xs:complexType> <xs:sequence> <xs:element name="Information" type="CarInfo" minOccurs="0" maxOccurs="unbounded" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Truck"> <xs:complexType> <xs:sequence> <xs:element name="Information" type="CarInfo" minOccurs="0" maxOccurs="unbounded"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="SUV"> <xs:complexType> <xs:sequence> <xs:element name="Information" type="CarInfo" minOccurs="0" maxOccurs="unbounded" /> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> <xs:complexType name="CarInfo"> <xs:sequence> <xs:element name="CarName"> <xs:simpleType> <xs:restriction base="xs:string"> <xs:minLength value="1"/> <xs:maxLength value="50"/> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="CarPassword"> <xs:simpleType> <xs:restriction base="xs:string"> <xs:minLength value="6"/> <xs:maxLength value="50"/> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="CarEmail"> <xs:simpleType> <xs:restriction base="xs:string"> <xs:pattern value="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"/> </xs:restriction> </xs:simpleType> </xs:element> </xs:sequence> </xs:complexType> </xs:schema> xml sample <?xml version="1.0" encoding="utf-8" ?> <vehicles> <owner>Car</owner> <Car> <Information> <CarName>Bob</CarName> <CarPassword>123456</CarPassword> <CarEmail>[email protected]</CarEmail> </Information> <Information> <CarName>Bob2</CarName> <CarPassword>123456</CarPassword> <CarEmail>[email protected]</CarEmail> </Information> </Car> <Truck> <Information> <CarName>Jim</CarName> <CarPassword>123456</CarPassword> <CarEmail>[email protected]</CarEmail> </Information> <Information> <CarName>Jim2</CarName> <CarPassword>123456</CarPassword> <CarEmail>[email protected]</CarEmail> </Information> </Truck> <SUV> <Information> <CarName>Jane</CarName> <CarPassword>123456</CarPassword> <CarEmail>[email protected]</CarEmail> </Information> <Information> <CarName>Jane</CarName> <CarPassword>123456</CarPassword> <CarEmail>[email protected]</CarEmail> </Information> </SUV> </vehicles> Serialization Class using System; using System.Collections.Generic; using System.Xml; using System.Xml.Serialization; [XmlRoot("vehicles")] public class MyClass { public MyClass() { Cars = new List<Information>(); Trucks = new List<Information>(); SUVs = new List<Information>(); } [XmlElement(ElementName = "owner")] public string Owner { get; set; } [XmlElement("Car")] public List<Information> Cars { get; set; } [XmlElement("Truck")] public List<Information> Trucks { get; set; } [XmlElement("SUV")] public List<Information> SUVs { get; set; } } public class CarInfo { public CarInfo() { Info = new List<Information>(); } [XmlElement("Information")] public List<Information> Info { get; set; } } public class Information { [XmlElement(ElementName = "CarName")] public string CarName { get; set; } [XmlElement("CarPassword")] public string CarPassword { get; set; } [XmlElement("CarEmail")] public string CarEmail { get; set; } } Now I think this should all validate. If not assume it is write as my real file does work and this is what this dummy one is based off. Now my problem is this. I want to enforce as much as I can from my schema. Such as the "owner" tag must be the first element and should show up one time and only one time ( minOccurs="1" maxOccurs="1"). Right now I can remove the owner element from my dummy xml file and deseriliaze it and it will go on it's happy way and convert it to object and will just put that property as null. I don't want that I want it to throw an exception or something saying this does match what was expected. I don't want to have to validate things like that once deserialized. Same goes for the <car></car> tag I want that to appear always even if there is no information yet I can remove that too and it will be happy with that. So what tags do I have to add to make my serialization class know that these things are required and if they are not found throw an exception.

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• Mimic remote API or extend existing django model

  - by drozzy

  I am in a process of designing a client for a REST-ful web-service. What is the best way to go about representing the remote resource locally in my django application? For example if the API exposes resources such as: List of Cars Car Detail Car Search Dealership summary So far I have thought of two different approaches to take: Try to wrangle the django's models.Model to mimic the native feel of it. So I could try to get some class called Car to have methods like Car.objects.all() and such. This kind of breaks down on Car Search resources. Implement a Data Access Layer class, with custom methods like: Car.get_all() Car.get(id) CarSearch.search("blah") So I will be creating some custom looking classes. Has anyone encoutered a similar problem? Perhaps working with some external API's (i.e. twitter?) Any advice is welcome. PS: Please let me know if some part of question is confusing, as I had trouble putting it in precise terms.

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• How to find Part Time development/IT work?

  - by Jonathan

  I've been working in the IT field now for 10 years. Originally trained as an Engineer, started out with C++ and have been a .Net specialist since beta. Currently seconded to a major city and working in the finance industry as freelance, I really feel like i've hit the glass ceiling. Have been contracting now for 5 years as the company politics and frustration of not being promoted and poor pay rises for excellent work but during the last decade of corporate cost cutting took its toll on my morale. Freelance made all the difference and i've had a very decorated career for good clients. What any Engineering student could ever dream of when starting out. The problem is, it doesn't particularly make me happy. It's good work, and i enjoy the problem solving aspects of it and having something to do each day. However there is always a large overhead of non-technical work and dealing with poor managers etc. I guess the Engineering was always a bit of a mistake i made the best out of, and now having 10 years behind a computer hasn't done wonders for my health or eye sight. In a nutshell i am in the process of retraining as a therapist and would like to open my own clinic. However, never having done this before, the fast pace IT skills outdate and the fact that all my experience and skills are non transferrable, i am a little worried. Any ideas how i can find part time IT work as i build up my business? (it's incredibly hard to find freelancing work that doesn't require long hours and overtime). Or other ideas to make the transition easier, and perhaps backout if it financially doesn't work/or i have enough marketing skills? I'd be interested to hear from people who have made a similar transition, successfully or unsuccessfully. Many thanks

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• Convert MFC Doc/View to?

  - by Harvey

  My question will be hard to form, but to start: I have an MFC SDI app that I have worked on for an embarrassingly long time, that never seemed to fit the Doc/View architecture. I.e. there isn't anything useful in the Doc. It is multi-threaded and I need to do more with threading, etc. I dream about also porting it to Linux X Windows, but I know nothing about that programming environment as yet. Maybe Mac also. My question is where to go from here? I think I would like to convert from MFC Doc/View to straight Win API stuff with message loops and window procedures, etc. But the task seems to be huge. Does the Linux X Windows environment use a similar kind of message loop, window procedure architecture? Can I go part way? Like convert a little at a time without rendering my program unusable for long periods of work? What is the best book to read to help me to move in that direction.

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• Algorithm for finding the best routes for food distribution in game

  - by Tautrimas

  Hello, I'm designing a city building game and got into a problem. Imagine Sierra's Caesar III game mechanics: you have many city districts with one market each. There are several granaries over the distance connected with a directed weighted graph. The difference: people (here cars) are units that form traffic jams (here goes the graph weights). Note: in Ceasar game series, people harvested food and stockpiled it in several big granaries, whereas many markets (small shops) took food from the granaries and delivered it to the citizens. The task: tell each district where they should be getting their food from while taking least time and minimizing congestions on the city's roads. Map example Sample diagram Suppose that yellow districts need 7, 7 and 4 apples accordingly. Bluish granaries have 7 and 11 apples accordingly. Suppose edges weights to be proportional to their length. Then, the solution should be something like the gray numbers indicated on the edges. Eg, first district gets 4 apples from the 1st and 3 apples from the 2nd granary, while the last district gets 4 apples from only the 2nd granary. Here, vertical roads are first occupied to the max, and then the remaining workers are sent to the diagonal paths. Question What practical and very fast algorithm should I use? I was looking at some papers (Congestion Games: Optimization in Competition etc.) describing congestion games, but could not get the big picture. Any help is very appreciated! P. S. I can post very little links and no images because of new user restriction.

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• question/problem regarding assigning an array of char *

  - by Fantastic Fourier

  Hi I'm working with C and I have a question about assigning pointers. struct foo { int _bar; char * _car[MAXINT]; // this is meant to be an array of char * so that it can hold pointers to names of cars } int foofunc (void * arg) { int bar; char * car[MAXINT]; struct foo thing = (struct foo *) arg; bar = arg->_bar; // this works fine car = arg->_car; // this gives compiler errors of incompatible types in assignment } car and _car have same declaration so why am I getting an error about incompatible types? My guess is that it has something to do with them being pointers (because they are pointers to arrays of char *, right?) but I don't see why that is a problem. when i declared char * car; instead of char * car[MAXINT]; it compiles fine. but I don't see how that would be useful to me later when I need to access certain info using index, it would be very annoying to access that info later. in fact, I'm not even sure if I am going about the right way, maybe there is a better way to store a bunch of strings instead of using array of char *?

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• When is a>a true ?

  - by Cricri

  Right, I think I really am living a dream. I have the following piece of code which I compile and run on an AIX machine: AIX 3 5 PowerPC_POWER5 processor type IBM XL C/C++ for AIX, V10.1 Version: 10.01.0000.0003 #include <stdio.h> #include <math.h> #define RADIAN(x) ((x) * acos(0.0) / 90.0) double nearest_distance(double radius,double lon1, double lat1, double lon2, double lat2){ double rlat1=RADIAN(lat1); double rlat2=RADIAN(lat2); double rlon1=lon1; double rlon2=lon2; double a=0,b=0,c=0; a = sin(rlat1)*sin(rlat2)+ cos(rlat1)*cos(rlat2)*cos(rlon2-rlon1); printf("%lf\n",a); if (a > 1) { printf("aaaaaaaaaaaaaaaa\n"); } b = acos(a); c = radius * b; return radius*(acos(sin(rlat1)*sin(rlat2)+ cos(rlat1)*cos(rlat2)*cos(rlon2-rlon1))); } int main(int argc, char** argv) { nearest_distance(6367.47,10,64,10,64); return 0; } Now, the value of 'a' after the calculation is reported as being '1'. And, on this AIX machine, it looks like 1 1 is true as my 'if' is entered !!! And my acos of what I think is '1' returns NanQ since 1 is bigger than 1. May I ask how that is even possible ? I do not know what to think anymore ! The code works just fine on other architectures where 'a' really takes the value of what I think is 1 and acos(a) is 0.

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• I can't set a border around my StackPanel. Any help?

  - by Sergio Tapia

  Here's my XAML code: <Window x:Class="CarFinder.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Search for cars in TuMomo" Height="480" Width="600"> <DockPanel Margin="8"> <Border CornerRadius="6" BorderBrush="Gray" Background="LightGray" BorderThickness="2" Padding="8"> <StackPanel Orientation="Horizontal" DockPanel.Dock="Top" Height="25"> <TextBlock FontSize="14" Padding="0 0 8 0"> Search: </TextBlock> <TextBox x:Name="txtSearchTerm" Width="400" /> <Image Source="/CarFinder;component/Images/Chrysanthemum.jpg" /> </StackPanel> </Border> <StackPanel Orientation="Horizontal" DockPanel.Dock="Top" Height="25"> </StackPanel> </DockPanel> </Window> The border is set around the entire window. And also, when I create another StackPanel it's added to the right of my previous StackPanel instead of being added under it. What's the reason for this?

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• Xpath: Selecting all of an element type?

  - by Johannes

  I'm just starting to learn Xpath, I'm trying to write a line of code that will select all of the actors in EACH movie parent (through Java!). Below, I have an example of one movie, but there are multiple <Movie> elements, each with <Actor> elements. <Movie Genre = 'Other'> <Title>Requiem For A Dream</Title> <ReleaseYear>2000</ReleaseYear> <Director>Darren Aronofsky</Director> <Actor Character = 'Sara Goldfarb'>Ellen Burstyn</Actor> <Actor Character = 'Harry Goldfarb'>Jared Leto</Actor> <Actor Character = 'Marion Silver'>Jennifer Connelly</Actor> <Actor Character = 'Tyrone C. Love'>Marlon Wayans</Actor> </Movie> Currently, I can only select the first <Actor> element of each <Movie> element -- is it possible to select all of them without using a for loop? Here is my current line of code that displays the first <Actor> element of every <Movie> element: System.out.println("Starring: " + xpath.evaluate("Actor", movieNode) + " as " + xpath.evaluate("Actor/@Character", movieNode) + "\n"); Any and all help if much appreciated!

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• What are the benefits of the PHP the different PHP compression libraries?

  - by Christopher W. Allen-Poole

  I've been looking into ways to compress PHP libraries, and I've found several libraries which might be useful, but I really don't know much about them. I've specifically been reading about bcompiler and PHAR libraries. Is there any performance benefit in either of these? Are there any "gotchas" I need to watch out for? What are the relative benefits? Do either of them add to/detract from performance? I'm also interested in learning of other libs which might be out there which are not obvious in the documentation? As an aside, does anyone happen to know whether these work more like zip files which just happen to have the code in there, or if they operate more like Python's pre-compiling which actually runs a pseudo-compiler? ======================= EDIT ======================= I've been asked, "What are you trying to accomplish?" Well, I suppose the answer is that this is all hypothetical. It is a combination of these: What if my pet project becomes the most popular web project on earth and I want to distribute it quickly and easily? (hay, a man can dream, right?) It also seems if using PHAR can be done easily, it would be the best way to create a subversion snapshot. Python has this really cool pre-compiling policy, I wonder if PHP has something like that? These libraries seem to do something similar. Will they do that? Hey, these libraries seem pretty neat, but I'd like clarification on the differences as they seem to do the same thing

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• How to implement "business rules" in Rails?

  - by Zabba

  What is the way to implement "business rules" in Rails? Let us say I have a car and want to sell it: car = Cars.find(24) car.sell car.sell method will check a few things: does current_user own the car? check: car.user_id == current_user.id is the car listed for sale in the sales catalog? check: car.catalogs.ids.include? car.id if all o.k. then car is marked as sold. I was thinking of creating a class called Rules: class Rules def initialize(user,car) @user = user @car = car end def can_sell_car? @car.user_id == @user.id && @car.catalogs.ids.include? @car.id end end And using it like this: def Car def sell if Rules.new(current_user,self).can_sell_car ..sell the car... else @error_message = "Cannot sell this car" nil end end end As for getting the current_user, I was thinking of storing it in a global variable? I think that whenever a controller action is called, it's always a "fresh" call right? If so then storing the current user as a global variable should not introduce any risks..(like some other user being able to access another user's details) Any insights are appreciated! UPDATE So, the global variable route is out! Thanks to PeterWong for pointing out that global variables persist! I've now thinking of using this way: class Rules def self.can_sell_car?(current_user, car) ......checks.... end end And then calling Rules.can_sell_car?(current_user,@car) from the controller action. Any thoughts on this new way?

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• How to get JSON code into MYSQL database?

  - by the_boy_za

  I've created this form with a jQuery autocomplete function. The selected brand from the autocomplete list needs to get sent to a PHP file using $.ajax function. My code doesn't seem to work but i can't find the error. I don't know why the data isn't getting inserted into MYSQL database. Here is my code: JQUERY: $(document).ready(function() { $("#autocomplete").autocomplete({ minLength: 2 }); $("#autocomplete").autocomplete({ source: ["Adidas", "Airforce", "Alpha Industries", "Asics", "Bikkemberg", "Birkenstock", "Bjorn Borg", "Brunotti", "Calvin Klein", "Cars Jeans", "Chanel", "Chasin", "Diesel", "Dior", "DKNY", "Dolce & Gabbana"] }); $("#add-brand").click(function() { var merk = $("#autocomplete").val(); $("#selected-brands").append(" <a class=\"deletemerk\" href=\"#\">" + merk + "</a>"); //Add your parameters here var param = JSON.stringify({ Brand: merk }); $.ajax({ type: "POST", async: true, url: "scripttohandlejson.php", contentType: "application/json", data: param, dataType: "json", success: function (good){ //handle success alert(good) }, failure: function (bad){ //handle any errors alert(bad) } }); return false; }); }); PHP FILE: scripttohandlejson.php <?PHP $getcontent = json_decode($json, true); $getcontent->{'Brand'}; $vraag ="INSERT INTO kijken (merk) VALUES ='$getcontent' "; $voerin = mysql_query($vraag) or die("couldnt put into db"); <?

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• bug in NHunspell spelling checker

  - by Nikhil K

  I am using NHunspell for checking spelling.I added NHunspell.dll as a reference to my asp.net page.I added the namespace System.NHunspell. The problem i am facing is related to IDisposible. I put the downloaded code of NHunspell inside the button event. protected void Button1_Click(object sender, EventArgs e) { using (Hunspell hunspell = new Hunspell("en_us.aff", "en_us.dic")) { bool correct = hunspell.Spell("Recommendation"); var suggestions = hunspell.Suggest("Recommendatio"); foreach (string suggestion in suggestions) { Console.WriteLine("Suggestion is: " + suggestion); } } // Hyphen using (Hyphen hyphen = new Hyphen("hyph_en_us.dic")) { var hyphenated = hyphen.Hyphenate("Recommendation"); } * using (MyThes thes = new MyThes("th_en_us_new.idx", "th_en_us_new.dat")) { using (Hunspell hunspell = new Hunspell("en_us.aff", "en_us.dic")) { ThesResult tr = thes.Lookup("cars", hunspell); foreach (ThesMeaning meaning in tr.Meanings) { Console.WriteLine(" Meaning: " + meaning.Description); foreach (string synonym in meaning.Synonyms) { Console.WriteLine(" Synonym: " + synonym); } } } } The * shown above is the line of error.The error is: " type used in a using statement must be implicitly convertible to 'System.IDisposable'". Also there is a warning on that line :"'NHunspell.MyThes.MyThes(string, string)' is obsolete: 'idx File is not longer needed, MyThes works completely in memory'"; Can any one help me to correct this???

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• How to get the Video-ID of a just uploaded Youtube movie

  - by murze

  Hi, how can i get the video-id of a just uploaded Youtube movie? I'm using this code: $yt = new Zend_Gdata_YouTube($httpClient); // create a new Zend_Gdata_YouTube_VideoEntry object $myVideoEntry = new Zend_Gdata_YouTube_VideoEntry(); // create a new Zend_Gdata_App_MediaFileSource object $filesource = $yt->newMediaFileSource('mytestmovie.mov'); $filesource->setContentType('video/quicktime'); // set slug header $filesource->setSlug('mytestmovie.mov'); // add the filesource to the video entry $myVideoEntry->setMediaSource($filesource); $myVideoEntry->setVideoTitle('My Test Movie'); $myVideoEntry->setVideoDescription('My Test Movie'); $myVideoEntry->setVideoCategory('Comedy'); // Note that category must be a valid YouTube category ! // set keywords, please note that this must be a comma separated string // and that each keyword cannot contain whitespace $myVideoEntry->setVideoTags('cars, funny'); // upload URI for the currently authenticated user $uploadUrl = 'http://uploads.gdata.youtube.com/feeds/api/users/default/uploads'; // try to upload the video, catching a Zend_Gdata_App_HttpException if available // or just a regular Zend_Gdata_App_Exception try { $newEntry = $yt->insertEntry($myVideoEntry, $uploadUrl, 'Zend_Gdata_YouTube_VideoEntry'); } catch (Zend_Gdata_App_HttpException $httpException) { echo $httpException->getRawResponseBody(); } catch (Zend_Gdata_App_Exception $e) { echo $e->getMessage(); } I assume it 'll be a property of $newEntry but i can't seem to find it! Thanks!

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• Please help me with a Git workflow

  - by aaron carlino

  I'm an SVN user hoping to move to Git. I've been reading documentation and tutorials all day, and I still have unanswered questions. I don't know if this workflow will make sense, but here's my situation, and what I would like to get out of my workflow: Multiple developers, all developing locally on their work stations 3 versions of the website: Dev, Staging, Production Here's my dream: A developer works locally on his own branch, say "developer1", tests on his local machine, and commits his changes. Another developer can pull down those changes into his own branch. Merge developer1 - developer2. When the work is ready to be seen by the public, I'd like to be able to "push" to Dev, Staging, or Production. git push origin staging or maybe.. git merge developer1 staging I'm not sure. Like I said, I'm still new to it. Here are my main questions: -Do my websites (Dev, Staging, Production) have to be repositories? And do they have to be "bare" in order to be the recipients of new changes? -Do I want one repository or many, with several branches? -Does this even make sense, or am I on the wrong path? I've read a lot of tutorials, so I'm really hoping someone can just help me out with my specific situation. Thanks so much!

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• Truncate portions of a string to limit the whole string's length in Ruby

  - by Horace Loeb

  Suppose you want to generate dynamic page titles that look like this: "It was all a dream, I used to read word up magazine" from "Juicy" by The Notorious B.I.G I.e., "LYRICS" from "SONG_NAME" by ARTIST However, your title can only be 69 characters total and this template will sometimes generate titles that are longer. One strategy for solving this problem is to truncate the entire string to 69 characters. However, a better approach is to truncate the less important parts of the string first. I.e., your algorithm might look something like this: Truncate the lyrics until the entire string is <= 69 characters If you still need to truncate, truncate the artist name until the entire string is <= 69 characters If you still need to truncate, truncate the song name until the entire string is <= 69 characters If all else fails, truncate the entire string to 69 characters Ideally the algorithm would also limit the amount each part of the string could be truncated. E.g., step 1 would really be "Truncate the lyrics to a minimum of 10 characters until the entire string is <= 69 characters" Since this is such a common situation, I was wondering if someone has a library or code snippet that can take care of it.

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• c incompatible types in assignment, problem with pointers?

  - by Fantastic Fourier

  Hi I'm working with C and I have a question about assigning pointers. struct foo { int _bar; char * _car[MAXINT]; // this is meant to be an array of char * so that it can hold pointers to names of cars } int foofunc (void * arg) { int bar; char * car[MAXINT]; struct foo thing = (struct foo *) arg; bar = arg->_bar; // this works fine car = arg->_car; // this gives compiler errors of incompatible types in assignment } car and _car have same declaration so why am I getting an error about incompatible types? My guess is that it has something to do with them being pointers (because they are pointers to arrays of char *, right?) but I don't see why that is a problem. when i declared char * car; instead of char * car[MAXINT]; it compiles fine. but I don't see how that would be useful to me later when I need to access certain info using index, it would be very annoying to access that info later. in fact, I'm not even sure if I am going about the right way, maybe there is a better way to store a bunch of strings instead of using array of char *?

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• Creating Mobile Cross-Platform Scripting Solution

  - by Aplomb

  I am having the dream to design a Mobile cross-platform scripting solution to achieve Developer only need to code once by scripting language(it's possible be Javascript or others need further investigation), then the solution will be able to generate the installation files for multiple mobile platforms like J2me, Android, Symbian, BlackBerry, Palm, Windows Mobile/Phone, iPhone, etc. Using the scripting language, developer can code with unified platform API. And other extension frameworks under scripting language, like, 1. 2D UI framework Most probably using for Mobile Applications, the UI style will compete with native UI framework and no longer every application in particular platform looks similar. 2. 3D UI framework Provide the platforms who has 3D capability can represent their Mobile Application with more fashion 3D style which will be much more abstractive. 3. Variable game engine Developers can can use it for easily and high-quality build games. 4. etc This Mobile solution is providing three points, 1. Cross-Platform 2. Scripting 3. Middleware So guys, what do you think about this idea, is it good for Developers? is it profitable? where is the better direction for this idea?

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• OO vs Simplicity when it comes to user interaction

  - by Oetzi

  Firstly, sorry if this question is rather vague but it's something I'd really like an answer to. As a project over summer while I have some downtime from Uni I am going to build a monopoly game. This question is more about the general idea of the problem however, rather than the specific task I'm trying to carry out. I decided to build this with a bottom up approach, creating just movement around a forty space board and then moving on to interaction with spaces. I realised that I was quite unsure of the best way of proceeding with this and I am torn between two design ideas: Giving every space its own object, all sub-classes of a Space object so the interaction can be defined by the space object itself. I could do this by implementing different land() methods for each type of space. Only giving the Properties and Utilities (as each property has unique features) objects and creating methods for dealing with the buying/renting etc in the main class of the program (or Board as I'm calling it). Spaces like go and super tax could be implemented by a small set of conditionals checking to see if player is on a special space. Option 1 is obviously the OO (and I feel the correct) way of doing things but I'd like to only have to handle user interaction from the programs main class. In other words, I don't want the space objects to be interacting with the player. Why? Errr. A lot of the coding I've done thus far has had this simplicity but I'm not sure if this is a pipe dream or not for larger projects. Should I really be handling user interaction in an entirely separate class? As you can see I am quite confused about this situation. Is there some way round this? And, does anyone have any advice on practical OO design that could help in general?

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• why is OOP hard for me?

  - by netrox

  I have trouble writing OOP in PHP... I understand the concept but I never create classes for my projects... mainly because it's often a small project and nothing complex. But when I read OOP, it seems more difficult to code than writing simple procedural statements. It also seems to take a lot of room as well with so many empty abstract classes and that can be easily lost in the land of objects... it's becoming like a junkyard to me. Also, I noticed that virtually all instructions on how to use OOP use "car" or "cat" or "dog" analogies. Hello... we're not dealing with animals or cars... we're dealing with windows or consoles. You can talk about analogies to death and I will never learn. What I want is see a code that's written to show how objects are created - not, "aCow-moo!" For example, I want to see a browser window object displaying say... three inputs. I want to see an "object" created to output a window with three inputs then I want to see how overriding works, like change the window object to display only two inputs instead of three inputs. I think that would make learning more easy, wouldn't it? Any recommended tutorials of that nature instead of quacks, moos, and woofs.

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• A standard set of questions to ask an interviewer?

  - by Rob Wells

  We have had many questions for interviewers to ask interviewees. But none addressing information flow in the other direction, interviewee to interviewer. Just an indirect question about "deal breakers" and one about "finding dream jobs". What I'm after is when you're interviewing at a company do you have a set of questions that you like to ask to help get a feel for the company and the work environment? I have a series of questions that I like to ask that range from the development environment to testing techniques to how the team get on together. Anything else you'd like to ask? Edit: I moved my original list of interviewer questions to my answer below. I've also gone through the other answers and added the ones thought were useful in to that answer. The answer is community wiki so feel free to add anything useful. N.B. This is my first cut of categories. Feel free to modify/add/etc. the categories. Or to recategorise the questions themselves.

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• Automated Legal Processing

  - by Chris S

  Will it ever be possible to make legal systems quantifiable enough to process with computer algorithms? What technologies would have to be in place before this is possible? Are there any existing technologies that are already trying to accomplish this? Out of curiosity, I downloaded the text for laws in my local municipality, and tried applying some simple NLP tricks to extract rules from sentences. I had mixed results. Some sentences were very explicit (e.g. "Cars may not be left in the park overnight"), but other sentences seemed hopelessly vague (e.g. "The council's purpose is to ensure the well-being of the community"). I apologize if this is too open-ended a topic, but I've often wondered what society would look like if legal systems were based on less ambiguous language. Lawyers, and the legal process in general, are so expensive because they have to manually process a complex set of rules codified in ambiguous legal texts. If this system could be represented in software, this huge expense could potentially be eliminated, making the legal system more accessible for everyone.

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• AudioRecord problems with non-HTC devices

  - by Marc

  I'm having troubles using AudioRecord. An example using some of the code derived from the splmeter project: private static final int FREQUENCY = 8000; private static final int CHANNEL = AudioFormat.CHANNEL_CONFIGURATION_MONO; private static final int ENCODING = AudioFormat.ENCODING_PCM_16BIT; private int BUFFSIZE = 50; private AudioRecord recordInstance = null; ... android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO); recordInstance = new AudioRecord(MediaRecorder.AudioSource.MIC, FREQUENCY, CHANNEL, ENCODING, 8000); recordInstance.startRecording(); short[] tempBuffer = new short[BUFFSIZE]; int retval = 0; while (this.isRunning) { for (int i = 0; i < BUFFSIZE - 1; i++) { tempBuffer[i] = 0; } retval = recordInstance.read(tempBuffer, 0, BUFFSIZE); ... // process the data } This works on the HTC Dream and the HTC Magic perfectly without any log warnings/errors, but causes problems on the emulators and Nexus One device. On the Nexus one, it simply never returns useful data. I cannot provide any other useful information as I'm having a remote friend do the testing. On the emulators (Android 1.5, 2.1 and 2.2), I get weird errors from the AudioFlinger and Buffer overflows with the AudioRecordThread. I also get a major slowdown in UI responsiveness (even though the recording takes place in a separate thread than the UI). Is there something apparent that I'm doing incorrectly? Do I have to do anything special for the Nexus One hardware?

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• Offline Mapping API

  - by Aaron M

  Are there any services available that allow me to manipulate maps in an offline setting? I am working on a project that requires me to take a map and based on features on the map, generate a game world. I have looked at a few of the API's for different providers: Google, ms, etc. The API's I looked seem to be strictly showing a user a map. I am looking for something that allows me to create a derivative of a map (the Gameworld), that will never be seen by the public, and is only used by the game engine. However one caveat is that I would like to be able to link the derivative created for use by the game engine, with something I can show the user. As an example. Think of a cross country racing sim. Users cannot control the vehicles directly in this game, they can only control the cars setup, driver, etc. I create a gameworld from a map. The gameworld data (driver position, etc) is overlayed onto a real map. A race might last several days. The only interaction users have with the real map is viewing their position on the map, and where they are in relation to the others. I don't want to violate the terms of the API here. I read Googles API TOS, and it seems to me that creating the gameworld would violdate their TOS. The features I really need are the following The ability to locate a specific place on the map by lat/long The ability/rights to grab those maps and save them as an image file temporarily for processing The ability/rights to store a gameworld that is based on the real map The ability to show a user a map with an overlay (this is optional. I can use googles API, or any other one that supports lat/long.)

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