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• How do I find if string has alphabets (a-z or A-Z) using regex?

  - by Vishal

  Return true, if a string has alphabets (a-z or A-Z)!

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• Accessing an Internal Function in setInterval

  - by Phonethics

  (function($) { $.fn.myPlugin = function(options) { var _this; var timer1; var foo = function(n) { if (timer1 != null) return; // in action timer1 = setInterval("bar("+n+")", 500); }; var bar = function(n) { ... if ( ... ) clearInterval(timer1); }; return this.each(function() { _this = $(this); _this.bind("click", function(){ foo(10); }); }); } })(jQuery); This doesn't work because "bar is not defined."

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• Partially fattening a list

  - by alj

  This is probably a really silly question but, given the example code at the bottom, how would I get a single list that retain the tuples? (I've looked at the itertools but it flattens everything) What I currently get is: ('id', 20, 'integer') ('companyname', 50, 'text') [('focus', 30, 'text'), ('fiesta', 30, 'text'), ('mondeo', 30, 'text'), ('puma', 30, 'text')] ('contact', 50, 'text') ('email', 50, 'text') what I would like is a single level list like: ('id', 20, 'integer') ('companyname', 50, 'text') ('focus', 30, 'text') ('fiesta', 30, 'text') ('mondeo', 30, 'text') ('puma', 30, 'text') ('contact', 50, 'text') ('email', 50, 'text') def getproducts(): temp_list=[] product_list=['focus','fiesta','mondeo','puma'] #usually this would come from a db for p in product_list: temp_list.append((p,30,'text')) return temp_list def createlist(): column_title_list = ( ("id",20,"integer"), ("companyname",50,"text"), getproducts(), ("contact",50,"text"), ("email",50,"text"), ) return column_title_list for item in createlist(): print item Thanks ALJ

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• Append an onClick event to an anchor tag using jquery?

  - by M.Woodard

  I am trying to add an onClick event to an anchor tag ... Previously i had ... <a href="somlink.html" onClick="pageTracker._link(this.href); return false;"> But i am trying to avoid the inline onClick event because it interferes with another script.. So using jQuery i am trying the following code ... <script> $(document).ready(function() { $('a#tracked').attr('onClick').click(function() {window.onbeforeunload = null; pageTracker._link(this.href); return false; }); }); </script> with the html like so <a id="tracked" href="something.html"> So my question is should this be working, and if not what would be the best solution?

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• Input Iterator for a shared_ptr

  - by Baz

  I have an iterator which contains the following functions: ... T &operator*() { return *_i; } std::shared_ptr<T> operator->() { return _i; } private: std::shared_ptr<T> _i; ... How do I get a shared pointer to the internally stored _i? std::shared_ptr<Type> item = ??? Should I do: MyInterfaceIterator<Type> i; std::shared_ptr<Type> item = i.operator->(); Or should I rewrite operator*()?

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• JQuery input hidden bug

  - by Abude

  this is the code: Jsfiddle when you clear the url filed and leave it empty the input is hidden and disappear , need to return to the input tag wit h display if the value is empty by click or tab. i have a form with inputs the url input is edited by clicking on the link double click or click next to the link that means in the div area when it's done editing it converts the text to link the Problem: when you leave the input empty it make the attribute of the code and the input attribute hidden so no info is show neither can type an info. how can i make if that input with the id url0/url1 is empty to return to the input option to make it visible and can type?

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• endpoints (bug?) behavior in xts

  - by Alex

  If I try to get endpoints for every year, for example, and do the following: xts.data <- xts(1:10000, order.by=seq(from=as.Date("1970-01-01"), by=1, len=10000)) z <- endpoints(xts.data, on="months", k=12) The return value for this is: > z [1] 0 10000 Same with numbers higher than 12. Why would xts simply not return indices of every year or 13th month starting from the beginning. Is it limited by the number of periods in a year? That is if i did: z <- endpoints(xts.data, on="weeks", k=54) This seems to work fine.

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• php, OOP dosent allow me to fetch multilingual content?

  - by user3138823

  i have written bellow class for my database connection. class dbConnection { protected $dbLink; public $db_host = "127.0.0.1"; public $db_user = "root"; public $db_pass = ""; public $db_name = "answer"; function connect() { try { $dbLink = new PDO('mysql:host='.$this->db_host.';dbname='.$this->db_name, $this->db_user, $this->db_pass); return $dbLink; } catch (PDOException $e) { return $e->getMessage(); } } } but in my databse i have multilingual content ( collection type = utf8_general_ci ). when i try to fetch data it returns ???? instead of real data. please can any one tell me how can i improve my class to work with multilingual contents. Thanks.

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• Why does this basic class not work?

  - by kalaba2003

  I could not understand why my class does no t work. Returns nothing. Is there any mistake? class User { public $first_name; public $last_name; public function full_name() { if(isset($this->first_name) && isset($this->last_name)) { return $this->first_name . " " . $this->last_name; } else { return "No name!"; } } public function assign () { $this->first_name = "Name"; $this->last_name = "Surname"; } } $user = new User(); $user->assign(); $user->full_name(); ?>

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• Change macro in VisualStudio

  - by Vaccano

  The macro 'propdp' creates a dependency property like this: public int MyProperty { get { return (int)GetValue(MyPropertyProperty); } set { SetValue(MyPropertyProperty, value); } } // Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc... public static readonly DependencyProperty MyPropertyProperty = DependencyProperty.Register("MyProperty", typeof(int), typeof(ownerclass), new UIPropertyMetadata(0)); I would like to change it a bit. To look like this: public int MyProperty { get { return (int)GetValue(MyPropertyProperty); } set { SetValue(MyPropertyProperty, value); } } public static readonly DependencyProperty MyPropertyProperty = DependencyProperty.Register("MyProperty", typeof(int), typeof(ownerclass), new UIPropertyMetadata(0)); Can this be done? Does anyone know where to change this?

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• Upcasting in C#: Making a Fruit a Pear

  - by Adam Kane

  Why can't I upcast (?) a Fruit to a Pear? public static class PearGenerator { public static Pear CreatePear () { // Make a new generic fruit. Fruit genericFruit = new Fruit(); // Upcast it to a pear. (Throws exception: Can't cast a Fruit to a Pear.) Pear pear = (Pear)genericFruit; // Return freshly grown pear. return ( pear ); } } public class Fruit { // some code } public class Pear : Fruit { public void PutInPie () { // some code } } Thanks!

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• (Strange) C++ linker error in constructor

  - by Microkernel

  I am trying to write a template class in C++ and getting this strange linker error and can't figureout the cause, please let me know whats wrong with this! Here is the error message I am getting in Visula C++ 2010. 1>------ Rebuild All started: Project: FlashEmulatorTemplates, Configuration: Debug Win32 ------ 1> main.cpp 1> emulator.cpp 1> Generating Code... 1>main.obj : error LNK2019: unresolved external symbol "public: __thiscall flash_emulator<char>::flash_emulator<char>(char const *,struct FLASH_PROPERTIES *)" (??0?$flash_emulator@D@@QAE@PBDPAUFLASH_PROPERTIES@@@Z) referenced in function _main 1>C:\Projects\FlashEmulator_templates\VS\FlashEmulatorTemplates\Debug\FlashEmulatorTemplates.exe : fatal error LNK1120: 1 unresolved externals ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== Error message in g++ main.cpp: In function âint main()â: main.cpp:8: warning: deprecated conversion from string constant to âchar*â /tmp/ccOJ8koe.o: In function `main': main.cpp:(.text+0x21): undefined reference to `flash_emulator<char>::flash_emulator(char*, FLASH_PROPERTIES*)' collect2: ld returned 1 exit status There are 2 .cpp files and 1 header file, and I have given them below. emulator.h #ifndef __EMULATOR_H__ #define __EMULATOR_H__ typedef struct { int property; }FLASH_PROPERTIES ; /* Flash emulation class */ template<class T> class flash_emulator { private: /* Private data */ int key; public: /* Constructor - Opens an existing flash by name flashName or creates one with given FLASH_PROPERTIES if it doesn't exist */ flash_emulator( const char *flashName, FLASH_PROPERTIES *properties ); /* Constructor - Opens an existing flash by name flashName or creates one with given properties given in configFIleName */ flash_emulator<T>( char *flashName, char *configFileName ); /* Destructor for the emulator */ ~flash_emulator(){ } }; #endif /* End of __EMULATOR_H__ */ emulator.cpp #include <Windows.h> #include "emulator.h" using namespace std; template<class T>flash_emulator<T>::flash_emulator( const char *flashName, FLASH_PROPERTIES *properties ) { return; } template<class T>flash_emulator<T>::flash_emulator(char *flashName, char *configFileName) { return; } main.cpp #include <Windows.h> #include "emulator.h" int main() { FLASH_PROPERTIES properties = {0}; flash_emulator<char> myEmulator("C:\newEMu.flash", &properties); return 0; }

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• Personalize Diff Command in Ubuntu

  - by acidboy

  I have two files, both with a lot of data, what I need is compare the first word of each file (each file always starts with a number, and each number could have many digits). The files are identical when these numbers are the same. Example: I have 3 files: a.txt, b.txt and c.txt a.txt content is "1 a b c 3 5 6 hjkj" b.txt content is "1 c f a 1234 h" c.txt content is "2 a b c 3 5 6 hjkj" diff a.txt b.txt should return "files are identical" diff a.txt c.txt should return "files are different" How can I compare them using the diff command?

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• Search a List inside another with IQueryable

  - by ovini poornima

  public static IQueryable<Institution> WithFunds(this IQueryable<Institution> query, IEnumerable<Fund> allowedFunds) { return query. } I want to get the query to return all Institutions having any of the Fund given in 'allowedFunds' list in Institution.Funds. Please help. My class hierarchy goes like this. public partial class Institution { public int Id { get; set; } public virtual ICollection<Fund> Funds { get; set; } } public partial class Fund { public int Id { get; set; } public virtual Institution Institution { get; set; } }

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• In linux, is it possible to do partial reads on a regular file

  - by Jimm

  I need to write an application that spits out log entries to a regular file at a very fast rate. Also, there will be another process, that can read the same file concurrently at the time, other process would be writing to it. I have following questions How does read() determine EOF, specially in the case, where the underlying file could be concurrently being modified? Is it possible for read() to return partially written data from the other process write? For example, the write process wrote half a line and read would pick that half line and return? The application would be written in C on linux 2.6.x using Ex4 filesystem UPDATE: Below link points to the patch, that locks inode in EXT4, before reading and writing. http://patchwork.ozlabs.org/patch/91834/

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• partial string matching - R

  - by DonDyck

  I need to write a query in R to match partial string in column names. I am looking for something similar to LIKE operator in SQL. For e.g, if I know beginning, middle or end part of the string I would write the query in format: LIKE 'beginning%middle%' in SQL and it would return matching strings. In pmatch or grep it seems I can only specify 'beginning' , 'end' and not the order. Is there any similar function in R that I am looking for? For example, say I am looking in the vector: y<- c("I am looking for a dog", "looking for a new dog", "a dog", "I am just looking") Lets say I want to write a query which picks "looking for a new dog" and I know start of the string is "looking" and end of string is "dog". If I do a grep("dog",y) it will return 1,2,3. Is there any way I can specify beginning and end in grep?

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• Select a Dictionary<T1, T2> with LINQ

  - by Rich

  I have used the "select" keyword and extension method to return an IEnumerable<T> with LINQ, but I have a need to return a generic Dictionary<T1, T2> and can't figure it out. The example I learned this from used something in a form similar to the following: IEnumerable<T> coll = from x in y select new SomeClass{ prop1 = value1, prop2 = value2 }; I've also done the same thing with extension methods. I assumed that since the items in a Dictionary<T1, T2> can be iterated as KeyValuePair<T1, T2> that I could just replace "SomeClass" in the above example with "new KeyValuePair<T1, T2> { ...", but that didn't work (Key and Value were marked as readonly, so I could not compile this code). Is this possible, or do I need to do this in multiple steps? Thanks.

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• How do I deal with drupal hook_views_tables?

  - by wamp

  For the title field,I want to return node.title,but what I tried is not working: return array('og' => array('name' => 'og', 'join' => array('left' => array('table' => 'node', 'field' => 'nid' ), 'right' => array('field' => 'nid' ), ), 'fields' => array( 'title' => array('name' => t('OG: Group: Group name'), 'table' => 'node', 'handler' => 'og_handler_field_title', 'help' => t('show group name.'), 'sortable' => true, 'sort_handler' => 'views_og_query_ogname', 'notafield' => false, ),

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• rewrite condition for directory along with file

  - by RHR

  Any one please help me.I am new to .htaccess I want to check the following condition RewriteCond : IF !index.html AND !app/facebookapp/{[a-zA-Z0-9-/]}.html RewriteRule : ..... My code is RewriteCond %{REQUEST_URI} !index\.html RewriteCond %{REQUEST_URI} app/facebookapp/^([a-zA-Z0-9-/]+).html$ RewriteRule ...... its not working And one more question if the request url is header.html RewriteCond %{REQUEST_URI} header.html$ RewriteRule ^([a-zA-Z0-9-/]+).html$ position.php?position=$1 [L] $l will return header. if the request url is app/facebookapp/header.html we write the same above condition $l will return app/facebookapp/header.my question is how to get only the filename ?? thanks

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• Error message regarding IEnumerable.GetEnumerator().

  - by Bon_chan

  I get this error message and I can't figure out why! Error 1 'Exo5Chap12.ShortCollection<T>' does not implement interface member 'System.Collections.IEnumerable.GetEnumerator()'. 'Exo5Chap12.ShortCollection<T>.GetEnumerator()' cannot implement 'System.Collections.IEnumerable.GetEnumerator()' because it does not have the matching return type of 'System.Collections.IEnumerator'. E:\MyFolders\Dev\c#\Chapter12\Exo5Chap12\Exo5Chap12\exo5.cs 9 18 Exo5Chap12 Here is the code with an implementation of GetEnumerator(). What is wrong? public class ShortCollection<T> : IList<T> { protected Collection<T> innerCollection; protected int maxSize = 10; public IEnumerator<T> GetEnumerator() { return (innerCollection as IEnumerator<T>).GetEnumerator(); } }

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• function declaration

  - by robUK

  Hello, gcc 4.1.2 c89 I am reviewing some code and I have come across the following function. I have never seen a function declared like this before. There are no data types for the paraemeters. My best guess is that the function is using a list of data types separated by semi-colons. The return type seems to be returning a function with those parameters. However, the read function is not defined anywhere. What is the advantage and purpose of declaring a function like this? Many thanks for any advice, int my_read(fd, ptr, cnt) int fd; char *ptr; unsigned cnt; { printf("Read\n"); return(read(fd, ptr, cnt)); }

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• Android-SQLite: How to Count specific value from Column?

  - by sanpatil

  I have two table (TABLE_EXAM,TABLE_RESULT). Here is value of my TABLE_RESULT. result_id exam_id question_id correct_answer 1 2 4 y 2 2 5 y 3 2 6 n 4 2 7 y I need to count how many correct_answer='y' where exam_id=2. I try following code but it return 0. public int calculateResult(int examId,String confirmAnswer) { int correctAnswer=0; try { SQLiteDatabase db=this.getWritableDatabase(); String selectQuery=("select count(correctAnswer) from result where exam_id ='" + examId + "' and correctAnswer ='" + 'y' +"'" ); // String selectQuery=("SELECT COUNT(*)FROM result WHERE exam_id ='" + examId + "' and correctAnswer ='" + confirmAnswer +"'" ); Cursor cursor = db.rawQuery(selectQuery, null); if(cursor.moveToLast()) { correctAnswer=cursor.getInt(3); } } catch(Exception e) { e.printStackTrace(); } return correctAnswer; } In variable confirm_answer i pass "y". Give me some hint or reference. Any help is appreciated. Thanks in Advance

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• class T in c++ (your definition)

  - by JohnWong

  The one advantage of using class T in c++ is to reduce the time to redefine data types in a function, if those data types are defined in other function, for example, in int main. template <class T> void showabs(T number) { if (number < 0 ) number = -number; cout << number << endl; return 0; } int main() { int num1 = -4; float num2 = -4.23f; showabs(num1); showabs(num2); return 0; } So in this case, without class T, for each data type, we have to add its corresponding data-type condition, that is, another set of if statement for int, and another one for float. Am I correct?

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• How can I get the file extensions from relative links in HTML text using Perl?

  - by Structure

  For example, scanning the contents of an HTML page with a Perl regular expression, I want to match all file extensions but not TLD's in domain names. To do this I am making the assumption that all file extensions must be within double quotes. I came up with the following, and it is working, however, I am failing to figure out a way to exclude the TLDs in the domains. This will return "com", "net", etc. m/"[^<>]+\.([0-9A-Za-z]*)"/g Is it possible to negate the match if there is more than one period between the quotes that are separated by text? (ie: match foo.bar.com but not ./ or ../) Edit I am using $1 to return the value within parentheses.

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• C++ inheritance doubt

  - by Poiuyt

  Can you explain why this is not allowed, #include <stdio.h> class B { private: int a; public: int a; }; int main() { return 0; } while this is? #include <stdio.h> class A { public: int a; }; class B : public A{ private: int a; }; int main() { return 0; } In both the cases, we have one public and one private variable named a in class B.

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