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• Parallelizing a serial algorithm

  - by user643813

  Hej folks, I am working on porting a Text mining/Natural language application from single-core to a Map-Reduce style system. One of the steps involves a while loop similar to this: Queue<Element>; while (!queue.empty()) { Element e = queue.next(); Set<Element> result = calculateResultSet(e); if (!result.empty()) { queue.addAll(result); } } Each iteration depends on the result of the one before (kind of). There is no way of determining the number of iterations this loop will have to perform. Is there a way of parallelizing a serial algorithm such as this one? I am trying to think of a feedback mechanism, that is able to provide its own input, but how would one go about parallelizing it? Thanks for any help/remarks

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• Editable CATextLayer?

  - by Ron

  I have several CATextLayers. When I doubleclick one of them, I want to be able to edit it's string. Think of text as it's handled in Keynote or many other apps. Any ideas? I thought of putting an editable textfield right in front of the layer and then dismiss it on enter, but I didn't get far. :-( I target Mac OS X 10.5 with Objective-C 2.0 and Garbage Collection. Any help or pointers would be greatly appreciated. Thanks in advance!!

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• How to get the string value of a UItextView?

  - by cocos2dbeginner

  Hi, I have a UITextView and a NString; I made this: myS = [myInfoTextView text]; but i get this in the console and not the string which is in the uitextview ( "<UIToolbarTextButton: 0x4d200c0; frame = (6 0; 112 44); opaque = NO; layer = <CALayer: 0x4da5540>>", "<UIToolbarTextButton: 0x4da5bb0; frame = (128 0; 106 44); opaque = NO; layer = <CALayer: 0x4d9e640>>" ) PS: I'm using the iphone sdk 4.2.

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• depth first search graph by using linked list

  - by programmerwannabe

  im using mac book and i cannot read the text file using this code. moreover, can you guys please add function(graph is connected?, and is this graph tree?) inputA.txt consist 1 2 1 6 1 5 2 3 2 6 3 4 3 6 4 5 4 6 5 6 #include <stdio.h> #include <memory.h> #include <stdlib.h> #define MAX 10 #define TRUE 1 #define FALSE 0 typedef struct Graph{ int vertex; struct Graph* link; } g_node; typedef struct graphType{ int x; int visited[MAX]; g_node* adjList_H[MAX]; } graphType; typedef struct stack{ int data; struct stack* link; } s_node; s_node* top; void push(int item){ s_node* n=(s_node*)malloc(sizeof(s_node)); n->data = item; n->link = top; top = n; } int pop(){ int item; s_node* n=top; if(top == NULL){ puts("\nstack is empty!\n"); return 0; } else { item = n-> data; top = n->link; free(n); return item; } } void createGraph(graphType* g){ int v; g->x = 1; for(v=1 ; v < MAX ; v++){ g -> visited[v] = FALSE; g -> adjList_H[v] = NULL; } } void insertVertex(graphType* g, int v){ if(((g->x)) > MAX){ puts("\n it has been overed the number of vertex\n"); return ; } g -> x++; } void insertEdge(graphType* g, int u, int v){ g_node* node; if(u >= g -> x || v >= g -> x){ puts("\n no vertex in the graph\n"); return ; } node = (g_node*)malloc(sizeof(g_node)); node -> vertex = v; node -> link = g -> adjList_H[u]; g-> adjList_H[u] = node; } void print_adjList(graphType* g){ int i; g_node *p; for(i=1 ; i<g -> x ; i++){ printf("\n\t\t vertex %d adjacency list ", i); p = g -> adjList_H[i]; while(p){ printf("-> %d", p-> vertex); p = p-> link; } } } void DFS_adjList(graphType* g, int v) { g_node* w; top = NULL; push(v); g->visited[v] = TRUE; printf(" %d", v); while(top != NULL){ w=g->adjList_H[v]; while(w){ if (!g->visited[w->vertex]){ push(w->vertex); g->visited[w->vertex] = TRUE; printf(" %d", w->vertex); v = w->vertex; w=g->adjList_H[v]; } else w= w->link; } v = pop(); } } int main (int argc, const char * argv[]) { FILE *fp; char mychar; char arr[][2]={0, }; int j, k; int i; graphType *G9; G9 = (graphType*)malloc(sizeof(graphType)); createGraph(G9); for(i=1; i<7 ; i++) insertVertex(G9, i); fp = fopen("inputD.txt", "r"); for(j = 0 ; j< 10 ; j++){ for(k = 0 ; k < 2 ; k++){ mychar = fgetc(fp); if(mychar = EOF){ j=10; break; } else if(mychar == ' ') continue; else if(mychar <= '9' || mychar >= '1'){ arr[j][k] = mychar; printf("%d%d", arr[i][k]); } } } insertEdge(G9, 1, 2); insertEdge(G9, 1, 6); insertEdge(G9, 1, 5); insertEdge(G9, 2, 3); insertEdge(G9, 2, 6); insertEdge(G9, 3, 4); insertEdge(G9, 3, 6); insertEdge(G9, 4, 5); insertEdge(G9, 4, 6); insertEdge(G9, 5, 6); insertEdge(G9, 6, 5); insertEdge(G9, 6, 4); insertEdge(G9, 5, 4); insertEdge(G9, 6, 3); insertEdge(G9, 4, 3); insertEdge(G9, 6, 2); insertEdge(G9, 3, 2); insertEdge(G9, 5, 1); insertEdge(G9, 6, 1); insertEdge(G9, 2, 1); printf("\n graph adjacency list "); print_adjList(G9); printf("\n \n//////////////////////////////////////////////\n\n depth fist search >> "); DFS_adjList(G9, 1); return 0; }

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• A Tkinter StringVar() Question

  - by Graham

  I would like to create a StringVar() that looks something like this: someText = "The Spanish Inquisition" #Here's a normal variable whose value I will change eventually TkEquivalent = StringVar() #and here's the StringVar() TkEquivalent.set(string(someText)) #and here I set it equal to the normal variable. When someText changes, this variable will too... HOWEVER: TkEquivalent.set("Nobody Expects " + string(someText)) If I do this, the StringVar() will no longer automatically update! How can I include that static text and still have the StringVar() update to reflect changes made to someText? Thanks for your help.

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• Performance effect of using print statements in Python script

  - by Sudar

  I have a Python script that process a huge text file (with around 4 millon lines) and writes the data into two separate files. I have added a print statement, which outputs a string for every line for debugging. I want to know how bad it could be from the performance perspective? If it is going to very bad, I can remove the debugging line. Edit It turns out that having a print statement for every line in a file with 4 million lines is increasing the time way too much.

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• Which PHP IDE would you use on Windows, if you're used to TextMate on the Mac?

  - by Dycey

  Until now, most of my PHP development had been done on a Mac in TextMate. For a new client I need to work on a secured windows box, and I was wondering which IDEs I should be looking at, as someone used to working with TextMate. I've tried the 'E' editor, and I'm unconvinced. I've tried IDEs on the Mac, and they always seem like poor relations... but given that I'm having to move development platforms anyway, is there something better I should be looking at? Are there any decent text editors out there that I'm missing?

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• SMS Through Email

  - by Patcouch22

  I know this is a subject that has been well covered here and throughout the web, so I am not asking for a list of carrier emails, however my question is how to send a text without knowing the users carrier and preferably without going through a third party. The only solution that I thought of would be send out to all carriers. I would only be sending to US carriers, however would a large number of failed emails slow the mail server at all or cause any other problems? Any advice on this solution or thoughts of others would be great.

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• Line formatting with Ruby.

  - by dbtek

  There is a text file containing words with 1 space between each of them. And there is also a command line entry that gives the length of line (output) wanted. Output will be words that fit into the length of the line (taken from command line). Also the first word will be on the left side of the line and the last word will be right side of it. The spaces between each word will be same. Any help will be appreciated thanks for replying.

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• bash—Better way to store variable between runs?

  - by shardbearer

  I've made a bash script which I run every hour with crontab, and I need to store one variable so that I can access it the next time I run it. The script changes the variable every time it runs, so I can't hardcode it in. Right now I am writing it to a txt file and then reading it back. Is there a better way to do it than this? And the way I am reading the txt file is something I found on here, I don't understand it, and it's kinda clunky. Is there not a built in command for this? Anyway, here's the applicable code, with some of the variables changed to make it easier to read. while read x; do var=$x done < var.txt # Do some stuff, change var to a new value echo $var > var.txt The variable is only a single integer, so the text file feels overkill.

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• Different characters take more/less data?

  - by Nathan

  I am working on a personal project and I'm wondering if certain characters take up more data in a text file than others. I need to choose a character to seperate items in my file, but if a 0 uses less bytes than a ! or something, it would be best to do that. I know all characters have an ASCII value, but would a lower ASCII value mean the character can be stored in fewer bytes? This might be an incredibly stupid question, but I don't see any information on the topic online so I came here to check. Thanks!

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• internet explorer and google chrome rendering issues

  - by jeansymolanza

  hi guys, i'm trying to build a login and main page on dreamweaver for a client and testing them in google chrome and internet explorer but i am running into a lot of unexpected difficulties. the main thing has to be the way the tables are being rendered on the different pages. it seems to appear well on google chrome but when i test the page under internet explorer there have been issues with the way the footer is being rendered. i've included several images showing the problem: login page on IE8 http://i39.tinypic.com/iz9lw3.jpg login page on google chrome http://i44.tinypic.com/1zn0qd2.jpg main page on IE8 http://i41.tinypic.com/2d0gyhf.jpg main page on google chrome http://i42.tinypic.com/2ry58aw.jpg login fail on IE8 http://i40.tinypic.com/2jea9ac.jpg login fail on google chrome http://i43.tinypic.com/sl35h2.jpg please help! i have included the source code below. i spent an entire night trying to figure out what was wrong but to little success. login page: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" href="resources/css_01.css"> <link rel="shortcut icon" href="resources/favicon.ico"> <title>Speedy CMS</title> <script src="SpryAssets/SpryValidationTextField.js" type="text/javascript"></script> <script src="SpryAssets/SpryValidationPassword.js" type="text/javascript"></script> <link href="SpryAssets/SpryValidationTextField.css" rel="stylesheet" type="text/css" /> <link href="SpryAssets/SpryValidationPassword.css" rel="stylesheet" type="text/css" /> </head> <body class="oneColElsCtr" background="resources/bg_01.jpg"> <div id="container"> <div id="mainContent"> <!-- start #mainContent --> <table id="Table_01" width="1024" height="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <td valign="top" rowspan="3"> <img src="resources/login_01.png" width="93" height="440" alt=""></td> <td valign="top" rowspan="3"> <img src="resources/login_02.png" width="457" height="440" alt=""></td> <td valign="top"> <img src="resources/login_03.png" width="474" height="86" alt=""></td> </tr> <tr> <td valign="top"><img src="resources/login_04.png" width="474" height="89" /></td> </tr> <tr> <td valign="top" width="100%" height="100%" align="left"> <form ACTION="<?php echo $loginFormAction; ?>" METHOD="POST" name="login" > <h3 class="login">Username</h3> <span id="sprytextfield1"> <input name="username" type="text" class="input" /> </span> <h3 class="login">Password</h3> <span id="sprypassword1"> <input name="password" type="password" class="input" /> </span> <p></p> <div align="left" style="width:474px; padding-top: 10px; padding-left: 100px;"> <input name="login" type="submit" id="Log in" value="Log in" class="btn"/> </div> </p> </form> </td> </tr> </table> </div> </div> <!-- end #mainContent --> <!-- start #footer --> <?php include("resources/footer.php"); ?> <!-- end #footer --> <script type="text/javascript"> <!-- var sprytextfield1 = new Spry.Widget.ValidationTextField("sprytextfield1"); var sprypassword1 = new Spry.Widget.ValidationPassword("sprypassword1"); //--> </script> </body> </html> main page: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" href="resources/css_01.css"> <link rel="shortcut icon" href="resources/favicon.ico"> <title>Speedy CMS</title> <body class="oneColElsCtr" background="resources/bg_01.jpg"> <div id="container"> <div id="mainContent"> <!-- start #mainContent --> <table id="Table_01" width="1024" border="0" cellpadding="0" cellspacing="0"> <tr> <td rowspan="7"> <img src="resources/main_01.png" width="93" height="440" alt=""></td> <td colspan="2"> <img src="resources/main_02.png" width="457" height="95" alt=""></td> <td colspan="3" valign="bottom"> <!-- start #navbar --> <?php include("resources/navbar.php"); ?> <!-- end #navbar --> </td> </tr> <tr> <td colspan="2"> <img src="resources/main_04.png" width="457" height="1" alt=""></td> <td colspan="3" rowspan="2" valign="top"><a class="bottom2" href="<?php echo $logoutAction ?>">Log off</a></td> </tr> <tr> <td colspan="2"> <img src="resources/main_06.png" width="457" height="29" alt=""></td> </tr> <tr> <td rowspan="4"> <img src="resources/main_07.png" width="456" height="315" alt=""></td> <td colspan="2"> <img src="resources/main_08.png" width="75" height="94" alt=""></td> <td rowspan="3"> <img src="resources/main_09.png" width="6" height="281" alt=""></td> <td align="left" valign="middle" style="padding-left:20px;"><h2 class="home">Hello, <?php echo $_SESSION['MM_Username']; ?></h2></td> </tr> <tr> <td rowspan="3"> <img src="resources/main_11.png" width="1" height="221" alt="" /></td> <td> <img src="resources/main_12.png" width="74" height="90" alt=""></td> <td align="left" valign="middle" style="padding-left:20px;"><h3 class="home"><?php echo date("l F d, Y, h:i A"); ?></h3></td> </tr> <tr> <td> <img src="resources/main_14.png" width="74" height="97" alt="" /></td> <td align="left" valign="middle" style="padding-left:20px;"><h3 class="home">You currently have <a href="progress.php" class="main"><?php echo $totalCases; ?> claims</a> running</h3></td> </tr> <tr> <td colspan="3"> <img src="resources/main_16.png" width="474" height="34" alt=""></td> </tr> </table> </div> </div> <!-- end #mainContent --> <!-- start #footer --> <?php include("resources/footer.php"); ?> <!-- end #footer --> </body> </html> <?php mysql_free_result($tbl_accident); ?> login fail page <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" href="resources/css_01.css"> <link rel="shortcut icon" href="resources/favicon.ico"> <title>Speedy CMS</title> <script src="SpryAssets/SpryValidationTextField.js" type="text/javascript"></script> <script src="SpryAssets/SpryValidationPassword.js" type="text/javascript"></script> <link href="SpryAssets/SpryValidationTextField.css" rel="stylesheet" type="text/css" /> <link href="SpryAssets/SpryValidationPassword.css" rel="stylesheet" type="text/css" /> </head> <body class="oneColElsCtr" background="resources/bg_02.jpg"> <div id="container"> <div id="mainContent"> <table id="Table_01" width="1024" height="" border="0" cellpadding="0" cellspacing="0"> <tr> <td rowspan="4"> <img src="resources/default2_01.png" width="93" height="440" alt=""></td> <td colspan="2"><img src="resources/default_02.png" width="457" height="95" /></td> <td valign="bottom"></td> </tr> <tr> <td colspan="2"> <img src="resources/default2_03.png" width="457" height="1" alt=""></td> <td> <img src="resources/default2_04.png" width="474" height="1" alt=""></td> </tr> <tr> <td colspan="3"> <div align="left" style="padding-left: 18px;"> <h3 class="loginfail">Sorry, but your username and password is incorrect.</h3> <h4 class="loginfail">Please try again!</h4> <form ACTION="<?php echo $loginFormAction; ?>" METHOD="POST" name="login" > <h5 class="loginfail">Username</h5> <span id="sprytextfield1"> <input name="username" type="text" class="input2" /> </span> <h5 class="loginfail">Password</h5> <span id="sprypassword1"> <input name="password" type="password" class="input2" /> </span> <img src="resources/spacer.gif" width="1" height="5" alt="" /> <p></p> <div align="left" style="width:474px; padding-top: 10px;"> <input name="login" type="submit" id="Log in" value="Log in" class="btn"/> </div> </p> </form> </td> </tr> <tr> <td colspan="3" height="100%"> </td> </tr> <tr> <td> <img src="resources/spacer.gif" width="93" height="1" alt=""></td> <td> <img src="resources/spacer.gif" width="337" height="1" alt=""></td> <td> <img src="resources/spacer.gif" width="120" height="1" alt=""></td> <td> <img src="resources/spacer.gif" width="474" height="1" alt=""></td> </tr> </table> </div> </div> <!-- start #footer --> <?php include("resources/footer2.php"); ?> <!-- end #footer --> <script type="text/javascript"> <!-- var sprytextfield1 = new Spry.Widget.ValidationTextField("sprytextfield1"); var sprypassword1 = new Spry.Widget.ValidationPassword("sprypassword1"); //--> </script> </body> </html> footer.php <table width="1024px" border="0" cellspacing="0" cellpadding="0" style="padding-left: 200px; padding-top: 10px; padding-bottom: 36px; text-align: left;"> <!-- speedy claim links --> <td width="33%" valign="top"> <div class="bottom" style="padding-left: 40px; text-align: left;">Learn About Us</div> <div class="hr" style="margin-left: 40px; width: 200px;"><hr /></div> <div style="padding-left: 40px; text-align: left;"> <a href="http://www.speedyclaim.co.uk/php/gifts.php" class="bottom2" target="_blank">Free Gifts</a><BR /> <a href="http://www.speedyclaim.co.uk/php/calculator.php" class="bottom2" target="_blank">Injury Calculator</a><BR /> <a href="http://www.speedyclaim.co.uk/php/aboutus.php" class="bottom2" target="_blank">About Us</a><BR /> <a href="http://www.speedyclaim.co.uk/php/claimonline.php" class="bottom2" target="_blank">Claim Online</a><BR /> <a href="http://www.speedyclaim.co.uk/php/contactus.php" class="bottom2" target="_blank">Contact Us</a><BR /> </div> </td> <!-- speedy claim links --> <td width="33%" valign="top"> <div class="bottom" style="padding-left: 40px; text-align: left;">Get Help</div> <div class="hr" style="margin-left: 40px; width: 200px;"><hr /></div> <div style="padding-left: 40px;"> <a href="http://www.speedyclaim.co.uk/php/services.php#roadaccident" class="bottom2" target="_blank">Road Traffic Accident</a><BR /> <a href="http://www.speedyclaim.co.uk/php/services.php#workaccident" class="bottom2" target="_blank">Work Accident</a><BR /> <a href="http://www.speedyclaim.co.uk/php/services.php#criminalinjury" class="bottom2" target="_blank">Criminal Injury</a><BR /> <a href="http://www.speedyclaim.co.uk/php/services.php#medicalnegligence" class="bottom2" target="_blank">Medical Neglicence</a><BR /> <a href="http://www.speedyclaim.co.uk/php/services.php#publicl" class="bottom2" target="_blank">Public Liability</a><BR /> <a href="http://www.speedyclaim.co.uk/php/services.php#taxiaccident" class="bottom2" target="_blank">Taxi Related Accident</a><BR /> </div> <!-- speedline --> <td width="33%" valign="top"> <div class="bottom" style="padding-left: 40px; text-align: left;">Taxi Service</div> <div class="hr" style="margin-left: 40px; width: 200px;"><hr /></div> <div style="padding-left: 40px;"> <a href="http://www.speedlinetaxi.com/airport.asp" class="bottom2" target="_blank">Airport Meet & Greet</a><BR /> <a href="http://www.speedlinetaxi.com/register.asp" class="bottom2" target="_blank">Automated Booking</a><BR /> <a href="http://www.speedlinetaxi.com/business.asp" class="bottom2" target="_blank">Business Accounts</a><BR /> <a href="http://www.speedlinetaxi.com/technology.asp" class="bottom2" target="_blank">Technology</a><BR /> <a href="https://ebook.autocab.net/3037" class="bottom2" target="_blank">E-Booking</a><BR /> <a href="http://www.speedlinetaxi.com/recruitment.asp" class="bottom2" target="_blank">Recruitment</a><BR /> <a href="http://www.speedlinetaxi.com/feedback.asp" class="bottom2" target="_blank">Feedback</a><BR /> <BR /> </div> </td> <tr> <td colspan="3" valign="top" style="padding-top:5px; padding-left:40px;"> <span class="bottom"> &copy; <?php echo date("Y")?> Speedline </span> </td> </tr> </table> footer2.php <table width="100%" border="0" cellspacing="0" cellpadding="0" style="padding-left: 188px; padding-top: 10px; text-align: left;" align="center"> <!-- speedy claim links --> <tr> <td width="99%" valign="top" style="padding-top:5px; padding-left:40px; padding-bottom: 10px;"> <span class="bottom"> &copy; <?php echo date("Y")?> Speedline </span> </td> </tr> </table> css_01.css html, body { height: 100%; margin: 0 0 1px; padding: 0; } body { font: 100% Arial, Helvetica, sans-serif; background-repeat: repeat-x; margin: 0; /* it's good practice to zero the margin and padding of the body element to account for differing browser defaults */ padding: 0; text-align: center; /* this centers the container in IE 5* browsers. The text is then set to the left aligned default in the #container selector */ color: #000000; } .oneColElsCtr #container { width: 1024px; margin: 0 auto; /* the auto margins (in conjunction with a width) center the page */ text-align: left; /* this overrides the text-align: center on the body element. */ } .oneColElsCtr #mainContent { padding: 0 0px; /* remember that padding is the space inside the div box and margin is the space outside the div box */ text-align: right; } .loginfail { font-family: Arial, Helvetica, sans-serif; text-decoration:none; color: #3399cc; } .login { font-family: Arial, Helvetica, sans-serif; text-decoration:none; color: #3399cc; padding-left: 100px; } .navbar { font-family: Arial, Helvetica, sans-serif; text-decoration:none; color: #FFF; font-size: 16px; } .navbar:hover { font-family: Arial, Helvetica, sans-serif; text-decoration:underline; color: #FFF; font-size: 16px; } .login2 { font-family: Arial, Helvetica, sans-serif; font-size: 10px; text-decoration:none; color: #3399cc; } .window { font-family: Arial, Helvetica, sans-serif; font-size: 12px; text-decoration:none; } .login2:hover { font-family: Arial, Helvetica, sans-serif; font-size: 10px; text-decoration:underline; color: #3399cc; } .main { font-family: Arial, Helvetica, sans-serif; text-decoration:none; color: #3399cc; } .main:hover { font-family: Arial, Helvetica, sans-serif; text-decoration:underline; color: #3399cc; } .form { font-family: Arial, Helvetica, sans-serif; text-decoration:none; color: #3399cc; } .form:hover { font-family: Arial, Helvetica, sans-serif; text-decoration:underline; color: #3399cc; } .input { margin-left: 100px; background-color:#FFF; border: none; width: 14em; height: 1.2em; font-family: Arial, Helvetica, sans-serif; font-size: 22px; } .input2 { background-color: #F2F2F2; border: none; width: 14em; height: 1.2em; font-family: Arial, Helvetica, sans-serif; font-size: 22px; } .btn { height: 2em; width: 8em; color: #FFF; background: #3399cc; font-weight: bold; font-size: 18px; border: none; } .btn:hover { color: #FFF; background: #333; cursor: pointer; /* cursor: hand; for IE5 */ } .bottom { font-family: Arial, Helvetica, sans-serif; font-size: 12px; font-weight: bold; color: #7e8081; } .bottom2 { font-family: Arial, Helvetica, sans-serif; font-size: 12px; text-decoration: none; color: #7e8081; } .bottom2:hover { font-family: Arial, Helvetica, sans-serif; font-size: 12px; text-decoration: underline; color: #7e8081; } .bottom3 { font-family: Arial, Helvetica, sans-serif; font-size: 12px; text-decoration: none; color: #333; } .bottom3:hover { font-family: Arial, Helvetica, sans-serif; font-size: 12px; text-decoration: underline; color: #333; } div.hr { height: 1px; background: #CCC url(hr1.gif) no-repeat scroll center; } div.hr hr { display: none; } .home { font-family: Arial, Helvetica, sans-serif; text-decoration:none; color: #3399cc; } .form2 { font-family: Arial, Helvetica, sans-serif; text-decoration:none; font-size: 12px; } .rta {border-width: 1px; border-style: solid; border-color: #CCC; } .box { width: 100%; padding-right: 3px; color: #000; text-decoration:none; } .box:hover { width: 100%; padding-right: 3px; color: #000; text-decoration:underline;} .box2 { width: 100%; color: #C00; text-decoration:none; } .box2:hover { width: 100%; padding-right: 3px; color: #C00; text-decoration:underline;} thanking in you advance. God bless.

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• Why do I get a segmentation fault while redirecting sys.stdout to Tkinter.Text widget in Python?

  - by Brent Nash

  I'm in the process of building a GUI-based application with Python/Tkinter that builds on top of the existing Python bdb module. In this application, I want to silence all stdout/stderr from the console and redirect it to my GUI. To accomplish this purpose, I've written a specialized Tkinter.Text object (code at the end of the post). The basic idea is that when something is written to sys.stdout, it shows up as a line in the "Text" with the color black. If something is written to sys.stderr, it shows up as a line in the "Text" with the color red. As soon as something is written, the Text always scrolls down to view the most recent line. I'm using Python 2.6.1 at the moment. On Mac OS X 10.5, this seems to work great. I have had zero problems with it. On RedHat Enterprise Linux 5, however, I pretty reliably get a segmentation fault during the run of a script. The segmentation fault doesn't always occur in the same place, but it pretty much always occurs. If I comment out the sys.stdout= and sys.stderr= lines from my code, the segmentation faults seem to go away. I'm sure there are other ways around this that I will probably have to resort to, but can anyone see anything I'm doing blatantly wrong here that could be causing these segmentation faults? It's driving me nuts. Thanks! PS - I realize redirecting sys.stderr to the GUI might not be a great idea, but I still get segmentation faults even when I only redirect sys.stdout and not sys.stderr. I also realize that I'm allowing the Text to grow indefinitely at the moment. class ConsoleText(tk.Text): '''A Tkinter Text widget that provides a scrolling display of console stderr and stdout.''' class IORedirector(object): '''A general class for redirecting I/O to this Text widget.''' def __init__(self,text_area): self.text_area = text_area class StdoutRedirector(IORedirector): '''A class for redirecting stdout to this Text widget.''' def write(self,str): self.text_area.write(str,False) class StderrRedirector(IORedirector): '''A class for redirecting stderr to this Text widget.''' def write(self,str): self.text_area.write(str,True) def __init__(self, master=None, cnf={}, **kw): '''See the __init__ for Tkinter.Text for most of this stuff.''' tk.Text.__init__(self, master, cnf, **kw) self.started = False self.write_lock = threading.Lock() self.tag_configure('STDOUT',background='white',foreground='black') self.tag_configure('STDERR',background='white',foreground='red') self.config(state=tk.DISABLED) def start(self): if self.started: return self.started = True self.original_stdout = sys.stdout self.original_stderr = sys.stderr stdout_redirector = ConsoleText.StdoutRedirector(self) stderr_redirector = ConsoleText.StderrRedirector(self) sys.stdout = stdout_redirector sys.stderr = stderr_redirector def stop(self): if not self.started: return self.started = False sys.stdout = self.original_stdout sys.stderr = self.original_stderr def write(self,val,is_stderr=False): #Fun Fact: The way Tkinter Text objects work is that if they're disabled, #you can't write into them AT ALL (via the GUI or programatically). Since we want them #disabled for the user, we have to set them to NORMAL (a.k.a. ENABLED), write to them, #then set their state back to DISABLED. self.write_lock.acquire() self.config(state=tk.NORMAL) self.insert('end',val,'STDERR' if is_stderr else 'STDOUT') self.see('end') self.config(state=tk.DISABLED) self.write_lock.release()

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• Removing a pattern from the beggining and end of a string in ruby

  - by seaneshbaugh

  So I found myself needing to remove <br /> tags from the beginning and end of strings in a project I'm working on. I made a quick little method that does what I need it to do but I'm not convinced it's the best way to go about doing this sort of thing. I suspect there's probably a handy regular expression I can use to do it in only a couple of lines. Here's what I got: def remove_breaks(text) if text != nil and text != "" text.strip! index = text.rindex("<br />") while index != nil and index == text.length - 6 text = text[0, text.length - 6] text.strip! index = text.rindex("<br />") end text.strip! index = text.index("<br />") while index != nil and index == 0 text = test[6, text.length] text.strip! index = text.index("<br />") end end return text end Now the "<br />" could really be anything, and it'd probably be more useful to make a general use function that takes as an argument the string that needs to be stripped from the beginning and end. I'm open to any suggestions on how to make this cleaner because this just seems like it can be improved.

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• Scalable way to store files on server (PHP)?

  - by Nathaniel Bennett

  I'm creating my first web application - a really simplistic online text editor. What I need to do is find the best way to store text based files - a lot of them. These text files can be past 10,000 words in size (text words not computer words.) in essence I want the text documents to be limitless in size. I was thinking about storing the text files in my MySQL database - but thought there was a better way. Instead I'm planing on storing the text files in XML based format in a directory on my server. The rows in the database define the name of the xml based text file and the user who created the text along with basic metadata. An ID is generated using a V4 GUID generator , which gives the text an id and stores the text in the "/store" directory on my server. The text definitions in my server contain this id, and the android app I'm developing gets the contents of the text file by retrieving the text definition and then downloading the text to the local device using the GUID in the text definition. I just think this is a botch job? how can I improve this system? There has been cases of GUID colliding. I don't want this to happen. A "slim" possibility isn't good enough - I need to make sure there is absolutely no chance in a GUID collision. I was planning on checking the database for texts that have the same id before storing the text with a particular id - I however believe with over 20,000 pieces of text in my database this would take an long time and produce unneeded stress on the server. How can I make GUID safe? What happens when a GUID collides? The server backend is going to be written in PHP.

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• Could breadcrumbs be considered as rich anchor text, and drop my ranking?

  - by Gkhan14

  I have breadcrumbs on my site, and the anchor text for the links are an exact match for the keyword I want to rank for. So in other words, it's "rich" anchor text. An example of my breadcrumbs could look like: Home Apple Cheats Apple Points Cheats Apple Seeds Game Cheats Well I've also used RDF markup to construct my breadcrumbs, following the Google article Rich snippets - Breadcrumbs which will allow Google to recognize it. So overall, do I need to worry about exact match anchor text that will get me penalized by something like Penguin? If so, I can remove the breadcrumbs easily.

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• SEO for a list of products with filters

  - by dana

  I am a wondering if there is a recommended "best practice" for a product search SEO. I know to create a dynamic sitemap file that lists links to all products in the site. However, I want to implement a a bookmark-able "advanced search". Should I let search engines index any of the results? Take the following parameters for a search on a make believe used car website: minprice (minimum price in dollars) maxprice (maximum price in dollars) make (honda, audi, volvo) model (accord, A4, S40) minyear (minimum model year) maxyear (maximum model year) minmileage (minimum mileage) maxmileage (maximum mileage) Given these parameters, there could be an infinite number of search combinations: Price Between $10,000 and $20,000 /search?minprice=10000&maxprice&20000 Audis with less than 50k miles /search?model=audi&maxmileage=50000 More than 100,000 miles and less than $5,000 /search?minmileage=100000&maxprice=5000 etc. Over time, there may be inbound links to a variety of these types of searches, yet they are all slices of the same data. Should I allow for all of these searches to be indexed?

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• How can you print a text file via gedit from the command line?

  - by dan

  I'd like to use gedit or some similar program just as a page formatter and pipe some text through it and onto the printer. | lpr just doesn't cut it in the presentation department. The printed output is subpar, even if I try to tinker with the margin and font size options. But I like the way text looks like when printed from gedit. Is there a way to have the best of both worlds and use a command line pipeline to print a text file with gedit-quality formatting?

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• Page appears indexed in Google but not findable for any search terms?

  - by Jeff Atwood

  (Note that I am going to use screenshots here because I suspect writing about this will change the behavior over time.) If you do a Google search for uiviewcontroller best practices either with or without the quotes, you end up with results like this: Note that none of these pages resolve to the actual Stack Overflow question containing those words in the title. They resolve to either a) sites that are mirroring our creative commons data and correctly pointing back to the source question without nofollow, as properly specified by our attribution requirements or b) our own internal links to the question, but not the actual question itself. The actual page with the title ... Custom UIView and UIViewController best practices? ... does exist at this URL ... http://stackoverflow.com/questions/3300183/custom-uiview-and-uiviewcontroller-best-practices ... and apparently it is present in Google's index! But why does it not appear when we search for uiviewcontroller best practices ? We know that Google contains this page in its index Our search terms match the title of the question Stack Overflow has much higher pagerank than the other sites that are mirroring this question under Creative Commons I don't get it. What are we doing wrong here?

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• Why are there unknown URLs in router log?

  - by Martin

  I recently looked at my router log. Why are a lot of requests that I don't send originated from a computer in my home network? They do not look like 3rd-party advertisements / images embedded in a page. The request have patterns, such as: top-visitor.com/look.php www.dottip.com/search/result.php?aff=8755&req=nickelodeon+games www.placeca.com/search/result.php?aff=3778&req=wireless+cell+phone www.bb5a.com/search.php?username=3348&keywords=flights www.blazerbox.com/search.php?username=2341&keywords=colorado+springs+real+estate www.freeautosource.com/search.php?username=sun100&keywords=vehicle www.1sp2.com/search.php?username=20190&keywords=las+the+hotel+vegas www.loadgeo.com/search/result.php?aff=10357&req=winamp www.exalt123.com/portal.php?ref=seo2007 www.7catalogs.com/search.php?username=la24&keywords=shutter www.theloaninstitute.com/search.php?username=kevin&keywords=webcam www.grammt.com/search.php?username=2530&keywords=bob And there are hundreds of these requests send within a second. So what's happening?

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• Will search engines reindex a page that has been set to redirect on to a newer site page?

  - by Luke Duddridge

  We were asked by a client to change a website so that any pages/Urls we were hosting on an older site would now redirect to a newer site hosted somewhere else and a different domain name to boot. We did this by changing each page in the IIS site management, to redirect to a url on their new domain instead of rendering a page locally. According to the redirect tool here: http://www.webconfs.com/redirect-check.php . What we have done is search engine friendly. Problem now is... the client has been on a course learning all about meta tags and so thinks they have a better understanding of the "matrix" (remember there is no spoon). As Google still has the older site appearing in a search, this isnt helping matters. I have tried to explain, we have to wait for Google to reindex. I'm not blowing smoke am I? I'm now starting to wonder... will the older site always appear in a search, even though the pages don't exist? Is there a better way I should be redirecting their site to ensure google will stop keeping an index of pages that no longer exist and would instead replace them with the content in the newer site? a suggestion on the site mentioned above is to use the code: Response.Status="301 Moved Permanently" Response.AddHeader "Location","http://www.new-url.com/" Does using the option in the IIS management tool to redirect the url not do the same?

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• OpenSearchDescriptions good or bad signal in Google's eyes?

  - by JeremyB

  I noticed a site using this tag: <link rel="search" type="application/opensearchdescription+xml" title="XXXXXXXXX" href="http://www.XXXXXXXXXX.com/api/opensearch" /> As I understand it (based on http://www.opensearch.org/Home), this tag is a way of describing search results (so you use it on pages which contain search results) to make it easier for other search engines to understand and use your results. Given that Matt Cutts has said Google generally frowns on "search results within search results" is using this tag a bad idea on a page that you hope to achieve a good ranking in Google?

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• How to load a text file from a server into iPhone game with AS3 in Adobe AIR?

  - by Phil

  Im creating an iPhone game with Adobe AIR, and I want to be able to load a simple text msg into an dynamic text box on the games front screen from my server (and then be able to update that text file on the server, so it updates automatically in the game after the game is on the app store) How would I go about acheiving that? is it as simple as using a getURL? are there any specifical issues with trying to do this on the iPhone via AIR that I should be aware of? Thanks for any advice.

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• Asterix in URL?

  - by KajMagnus

  Are there any reasons I shouldn't use an asterix (*) in a URL? Background: With asterixes, I could provide these nice and user friendly (or what do you think??) URLs: example.com/some/folder/search-phrase* means search for pages with names starting with "search-phrase", located in /some/folder/. example.com/some/**/*search-phrase* means search for any page with "search-phrase" anywhere in its name. example.com/some/folder/* means list all pages in /some/folder/ (rather than showing the /some/folder/index page).

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• How to disable drag and drop of text within the textarea? [migrated]

  - by Manoj Agarwal

  I am working on UI Design, where I need to use Html textarea object. The sample code is: <textarea rows="5" cols="60" spellcheck="false" style="font-size:12px; font-family: Verdana;"> Abc Xyz Mnp Pqr </textarea> I don't want to disable the textarea, since there are some cross-browser issues. If I point on 'y' in 'xyz' and drag it after text 'Mnp', it will be shifted as 'Mnpyz'. I want to avoid this drag and drop feature of text within the text area.

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