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• Storing cvs data for further manipulation using Ruby

  - by ischnura

  I am dealing with a csv file that has some customer information (email, name, address, amount, [shopping_list: item 1, item 2]). I would like work with the data and produce some labels for printing... as well as to gather some extra information (total amounts, total items 1...) My main concern is to find the appropriate structure to store the data in ruby for future manipulation. For now I have thought about the following possibilities: multidimensional arrays: pretty simple to build, but pretty hard to access the data in a beautiful ruby way. hashes: having the email as key, and storing the information in different hashes (one hash for name, another hash for address, another hash for shopping list...) (getting the cvs data in to a Database and working with the data from ruby??) I would really appreciate your advice and guidance!!

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• Another floating point question

  - by jeffmax329

  I have read most of the posts on here regarding floating point, and I understand the basic underlying issue that using IEEE 754 (and just by the nature of storing numbers in binary) certain fractions cannot be represented. I am trying to figure out the following: If both Python and JavaScript use the IEEE 754 standard, why is it that executing the following in Python .1 + .1 Results in 0.20000000000000001 (which is to be expected) Where as in Javascript (in at least Chrome and Firefox) the answer is .2 However performing .1 + .2 In both languages results in 0.30000000000000004 In addition, executing var a = 0.3; in JavaScript and printing a results in 0.3 Where as doing a = 0.3 in Python results in 0.29999999999999999 I would like to understand the reason for this difference in behavior. In addition, many of the posts on OS link to a JavaScript port of Java's BigDecimal, but the link is dead. Does anyone have a copy?

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• Sending variables in URLs in PHP with echo

  - by alexpelan

  Hi all, I can't really find good guidelines through google searches of the proper way to escape variables in URLs. Basically I am printing out a bunch of results from a mysql query in a table and I want one of the entries in each row to be a link to that result's page. I think this is easy, that I'm just missing a apostrophe or backslash somewhere, but I can't figure it out. Here's the line that's causing the error: echo "<a href = \"movies.php/?movie_id='$row['movie_id']'\"> Who Owns It? </a> "; and this is the error I'm getting: Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING If you could elaborate in your answers about general guidelines for working with echo and variables in urls, that would be great. Thanks.

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• How do I get all data from a mysql table via php, and print out the contents of every cell ?

  - by roberto

  Hi. I've got a database table with at least three rows in it. From php, I have successfully connected to my db and extracted all table information with 'SELECT * from mytable' . Now I want to loop through first each row, and then each cell, printing out the contents of each cell. I know this might be a simple task for a more experienced programmer, but I can't figure it out, and I can't find any examples online and it's driving me stark raving bonkers. How can I do this ?

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• How to call a specific, unknown Python object attribute?

  - by Michael Morisy

  I'm working to create a simple Python script that will ultimately tell you how many blog entries were posted in a given month, and the pyblog app is proving very helpful. However, when I create the blog object, I don't know how to access it's various attributes. I can print them all out by printing one item from the dictionary, as shown (in excerpts) below: print blog.get_recent_posts(1) 'post_status': 'publish', 'date_created_gmt': <DateTime '20100601T19:27:17' at 2853300>, 'mt_excerpt': '', 'userid': '288', 'dateCreated': <DateTime '20100601T14:27:17' at 2853350>, 'custom_fields': [{'value': '', 'id': '1317', 'key': 'brightcove_code'}, {'value': 'http://bit.ly/d0Rywl', 'id': '1403', But how can I just get it to provide that DateTime information?

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• why is this dictionary line number count not working?

  - by jad

  i have this piece of code the last bit of the code starting from d = {} im trying to print the words with its line number located in the text but it is not working its only printing the words anyone know why ??? need help ASAP import sys import string text = [] infile = open(sys.argv[1], 'r').read() for punct in string.punctuation: infile = infile.replace(punct, "") text = infile.split() dict = open(sys.argv[2], 'r').read() dictset = [] dictset = dict.split() words = [] words = list(set(text) - set(dictset)) words = [text.lower() for text in words] words.sort() d = {} counter = 0 for lines in text: counter += 1 if word not in d: d[words] = [counter] else: d[words.append[counter] print(word, d)

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• Plugin methods are missing in Firefox 3.6

  - by splintor

  Hi, We have a plugin that we use to enable printing and saving from our app. We instantiate it using tag with all needed attributes, and then call Save() or Print() method on the document.embeds[0] object. This used to work perfectly on Firefox 3.5 and earlier, but it no longer works in Firefox 3.6. In 3.6, document.embeds[0].Save is null, that is our custom methods are not defined on this object. Any idea why this happens, and what has changed in Firefox 3.6 that causes it? Any idea on how to debug it and find the cause? And most important, any idea of a workaround that will allow us to access this methods? Thanks, splintor

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• printf not passing correct Hex Address to stack

  - by kriss

  I have a hickup in using printf . I am on ubuntu 10.04. Basically i have a C program asking for some input and then prints it back. It is OK for printing something after inputing. I tried to insert some Hex Address to Stack by following format:- printf "hello world!\x12\x23\x34" | ./input1 But i don't know what is the problem. If i give only string beyond 12 bytes it overwrites BUT If I give hex address(through printf), it doesn't overwrite on return address. Instead it stores some other thing. Could anyone help??? I can't proceed further becoz of this. Thanks in advance

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• Make Sphinx quiet (non-verbose)

  - by J. Pablo Fernández

  I'm using Sphinx through Thinking Sphinx in a Ruby on Rails project. When I create seed data and all the time, it's quite verbose, printing this: using config file '/Users/pupeno/projectx/config/development.sphinx.conf'... indexing index 'user_delta'... collected 7 docs, 0.0 MB collected 0 attr values sorted 0.0 Mvalues, 100.0% done sorted 0.0 Mhits, 99.6% done total 7 docs, 159 bytes total 0.042 sec, 3749.29 bytes/sec, 165.06 docs/sec Sphinx 0.9.8.1-release (r1533) Copyright (c) 2001-2008, Andrew Aksyonoff for every record that is created or so. Is there a way to suppress that output?

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• reading a file that doesn't exist

  - by John

  Hi, I have got a small program that prints the contents of files using the system call - read. unsigned char buffer[8]; size_t offset=0; size_t bytes_read; int i; int fd = open(argv[1], O_RDONLY); do{ bytes_read = read(fd, buffer, sizeof(buffer)); printf("0x%06x : ", offset); for(i=0; i<bytes_read; ++i) { printf("%c ", buffer[i]); } printf("\n"); offset = offset + bytes_read; }while(bytes_read == sizeof(buffer)); Now while running I give a file name that doesn't exist. It prints some kind of data mixed with environment variables and a segmentation fault at the end. How is this possible? What is the program printing? Thanks, John

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• How to debug Perl program sudden exits?

  - by taw

  I have Perl program based on io::async, and it sometimes just exits after a few hours/days without printing any error message whatsoever. There's nothing in dmesg or /var/log either. STDOUT/STDERR are both autoflush(1) so data shouldn't be lost in buffers. It doesn't actually exit from IO::Async::Loop->loop_forever - print I put there just to make sure of that never gets triggered. Now one way would be to keep peppering the program with more and more prints and hope one of them gives me some clue. Is there better way to get information what was going on in a program that made it exit/silently crash?

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• jQuery basics - selector

  - by rkrauter

  I feel dumb.. Why is my "header" div not being selected? It's background color is not being changed. I am learning about the + operator so I am not looking for a different selector. E + F an F element immediately preceded by an E element $("#divA + div").css("background-color", "red"); Html <div id="divA"> <div> Header</div> Lorem Ipsum is simply dummy text of the printing and typesetting industry. </div> Thanks!

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• PHP Export Date range

  - by menormedia

  I have a working database export to xls but I need it to export a particular date range based on the 'closed' date. (See code below). For example, I'd like it to export all 'closed' dates for last month and/or this month (Range: Sept 1, 2012 to Sept 30, 2012 or Oct 1, 2012 to Oct 31, 2012) <?PHP //EDIT YOUR MySQL Connection Info: $DB_Server = "localhost"; //your MySQL Server $DB_Username = "root"; //your MySQL User Name $DB_Password = ""; //your MySQL Password $DB_DBName = "ost_helpdesk"; //your MySQL Database Name $DB_TBLName = "ost_ticket"; //your MySQL Table Name //$DB_TBLName, $DB_DBName, may also be commented out & passed to the browser //as parameters in a query string, so that this code may be easily reused for //any MySQL table or any MySQL database on your server //DEFINE SQL QUERY: //edit this to suit your needs $sql = "Select ticketID, name, company, subject, closed from $DB_TBLName ORDER BY closed DESC"; //Optional: print out title to top of Excel or Word file with Timestamp //for when file was generated: //set $Use_Titel = 1 to generate title, 0 not to use title $Use_Title = 1; //define date for title: EDIT this to create the time-format you need $now_date = DATE('m-d-Y'); //define title for .doc or .xls file: EDIT this if you want $title = "MDT Database Dump For Table $DB_TBLName from Database $DB_DBName on $now_date"; /* Leave the connection info below as it is: just edit the above. (Editing of code past this point recommended only for advanced users.) */ //create MySQL connection $Connect = @MYSQL_CONNECT($DB_Server, $DB_Username, $DB_Password) or DIE("Couldn't connect to MySQL:<br>" . MYSQL_ERROR() . "<br>" . MYSQL_ERRNO()); //select database $Db = @MYSQL_SELECT_DB($DB_DBName, $Connect) or DIE("Couldn't select database:<br>" . MYSQL_ERROR(). "<br>" . MYSQL_ERRNO()); //execute query $result = @MYSQL_QUERY($sql,$Connect) or DIE("Couldn't execute query:<br>" . MYSQL_ERROR(). "<br>" . MYSQL_ERRNO()); //if this parameter is included ($w=1), file returned will be in word format ('.doc') //if parameter is not included, file returned will be in excel format ('.xls') IF (ISSET($w) && ($w==1)) { $file_type = "msword"; $file_ending = "doc"; }ELSE { $file_type = "vnd.ms-excel"; $file_ending = "xls"; } //header info for browser: determines file type ('.doc' or '.xls') HEADER("Content-Type: application/$file_type"); HEADER("Content-Disposition: attachment; filename=MDT_DB_$now_date.$file_ending"); HEADER("Pragma: no-cache"); HEADER("Expires: 0"); /* Start of Formatting for Word or Excel */ IF (ISSET($w) && ($w==1)) //check for $w again { /* FORMATTING FOR WORD DOCUMENTS ('.doc') */ //create title with timestamp: IF ($Use_Title == 1) { ECHO("$title\n\n"); } //define separator (defines columns in excel & tabs in word) $sep = "\n"; //new line character WHILE($row = MYSQL_FETCH_ROW($result)) { //set_time_limit(60); // HaRa $schema_insert = ""; FOR($j=0; $j<mysql_num_fields($result);$j++) { //define field names $field_name = MYSQL_FIELD_NAME($result,$j); //will show name of fields $schema_insert .= "$field_name:\t"; IF(!ISSET($row[$j])) { $schema_insert .= "NULL".$sep; } ELSEIF ($row[$j] != "") { $schema_insert .= "$row[$j]".$sep; } ELSE { $schema_insert .= "".$sep; } } $schema_insert = STR_REPLACE($sep."$", "", $schema_insert); $schema_insert .= "\t"; PRINT(TRIM($schema_insert)); //end of each mysql row //creates line to separate data from each MySQL table row PRINT "\n----------------------------------------------------\n"; } }ELSE{ /* FORMATTING FOR EXCEL DOCUMENTS ('.xls') */ //create title with timestamp: IF ($Use_Title == 1) { ECHO("$title\n"); } //define separator (defines columns in excel & tabs in word) $sep = "\t"; //tabbed character //start of printing column names as names of MySQL fields FOR ($i = 0; $i < MYSQL_NUM_FIELDS($result); $i++) { ECHO MYSQL_FIELD_NAME($result,$i) . "\t"; } PRINT("\n"); //end of printing column names //start while loop to get data WHILE($row = MYSQL_FETCH_ROW($result)) { //set_time_limit(60); // HaRa $schema_insert = ""; FOR($j=0; $j<mysql_num_fields($result);$j++) { IF(!ISSET($row[$j])) $schema_insert .= "NULL".$sep; ELSEIF ($row[$j] != "") $schema_insert .= "$row[$j]".$sep; ELSE $schema_insert .= "".$sep; } $schema_insert = STR_REPLACE($sep."$", "", $schema_insert); //this corrects output in excel when table fields contain \n or \r //these two characters are now replaced with a space $schema_insert = PREG_REPLACE("/\r\n|\n\r|\n|\r/", " ", $schema_insert); $schema_insert .= "\t"; PRINT(TRIM($schema_insert)); PRINT "\n"; } } ?>

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• How to print absolute line number in uncaught exception?

  - by DSblizzard

  When error occured Python prints something like this: Traceback (most recent call last): File "<stdin>", line 2, in <module> File "<stdin>", line 8, in m File "<stdin>", line 5, in exec_st File "<stdin>", line 9, in exec_assign File "<stdin>", line 48, in ref_by_id IndexError: list index out of range where 2, ... , 48 are relative line numbers which are not very convenient. How to print absolute line numbers in such error messages? EDIT: Maybe it's a dumb question, but answer will facilitate development a little. I'm printing text in several files. When done, press shortcut which runs python and copies contents of current file to console. Proposed solution forces to press excess keystrokes (Ctrl+S, Alt+Tab) and create additional files. I hope I have put it clear.

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• variable being weirdly deleted

  - by calccrypto

  im having a weird problem with one variable: its not being recognized but its still printing. i would post my code, but it is massive. the basic idea is: # pseudocode def function(stuff): <do stuff> # These are the only 2 conditions if tag == 3: pka = <a string> if tag == 4: pka = <a string> print pka # (1) print pka # (2) <do stuff not modifying pka> print pka # (3) if pka == 'RSA': <do stuff> elif pka == 'DSA': <do stuff> my code will error at (2). however, it will print out (1), (2), and (3), all of which are the same. is there any general explanation of why this is happening? if my code is really needed, i will post it, but otherwise, i would rather not due to its size update: now the code will error at the if statement after (3), saying UnboundLocalError: local variable 'pka' referenced before assignment even though (1),(2),(3) just printed

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• Issues using UITapGestureRecognizers in Interface Builder

  - by 5StringRyan

  I'm attempting to use the UITapGestureRecognizer object that can be found in Interface Builder. I've dragged a single "UITapGestureRecognizer" from the object library to a single view xib. I then create an IBAction method from this tap gesture, for a simple test, I'm just printing an "NSLog" message to the console once there is a tap on the view. I've run this, and the tap method isn't being called. I right click the view in IB and I noticed that there is a warning "!" on the view's "Outlook Collections" I see: Outlook Collections gestureRecognizers - Tap Gesture Recognizer (!) The warning states: UIView does not have an outlet collection named gestureRecognizers. What do I need to do to remedy this?

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• Barcode field length

  - by bestattendance

  I'm writing some attendance software. Each member will have an ID card with a barcode which they will use to sign in to events. How long should the barcode field be in my database? I'd like to accept Code 39 and Code 128 barcodes. I know these are variable length codes, so what should I set the max length to? Thanks! EDIT: My clients will be using a variety of third-party barcode printing tools.

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• How to print an isosceles triangle

  - by Steve

  Hello, I'm trying to learn programming by myself, I'm working from a book that has the following problem which I can't solve: Allow the user to input two values: a character to be used for printing an isosceles triangle and the size of the peak for the triangle. For example, if the user inputs # for the character and 6 for the peak, you should produce the following display: # ## ### #### ##### ###### ##### #### ### ## # This is the code I've got so far: char character; int peak; InputValues(out character, out peak); for (int row = 1; row < peak * 2; row++) { for (int col = 1; col <= row; col++) { Console.Write(character); } Console.WriteLine(); } Console.Read() // hold console open Thanks in advance.

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• Flush() not working in drupal

  - by fawad

  I'm trying to post data from one node to another. The other node contains the for loop which iterates for long time and finally generates the table. I want to display the result after each iteration. I have tried to put "flush();" but it is not working. What should i do to display each iteration result on the node page? Note: If i do it with ob_flush() it works but it then starts printing data above the header which is not suitable. I want all the data inside the node.

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• handling Javascript actions in PDF with Java

  - by Stroboskop

  I'm trying to make PDF forms (aka AcroForms) editable in Java. So far i got the GUI editing and printing working using Bruno Lowagie's iText and Sun's pdf-renderer. But now i'm close to scrapping it all, because after switching from try & error to reading the PDF specification, i realized that it's all worthless unless i can make the multitude of possible JavaScript actions work as well. I don't think iText can do that. So in short: are there any Java libraries that do proper form handling including actions? Or maybe even a Java GUI component to edit form data?

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• How are python pages coded and what can the language be compared to? [closed]

  - by avon_verma

  I have a few questions about python I've seen many pages like these on Google http://mail.google.com/support/bin/answer.py?answer=6583 https://www.google.com/adsense/support/bin/topic.py?topic=13488 ...that have .py extensions. 1: Are pages like these built on pure python code, but printing out html like print "<div etc..." or like the typical asp,jsp,php type of pages with html pages and embedded python code like: <html> <% some python code %> </html> 2: What is python mainly used for making? windows apps or web or .. ? 3: Are ruby and perl also similar to python?

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• Internal scala compilation. Working with interactive.Global

  - by scout

  I am trying to retrieve the AST from scala souce file. I have simplified the code (only relevant code) to following. trait GetAST { val settings = new Settings val global = new Global(settings, new ConsoleReporter(settings)) def getSt = "hello" //global.typedTree(src, true) } object Tre extends GetAST { def main(args:Array[String]) { println(getSt.getClass) println("exiting program") } } The above code compiles fine and runs fine. But the problem is the program does not exit. The prompt is not displayed after printing "exiting program". I have to use ^c to exit. Any idea what the problem might be

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• Byte order (endian) of int in NSLog?

  - by Eonil

  NSLog function accepts printf format specifiers. My question is about %x specifier. Does this print hex codes as sequence on memory? Or does it have it's own printing sequence style? unsigned int a = 0x000000FF; NSLog(@"%x", a); Results of above code on little or big endian processors are equal or different? And how about NSString's -initWithFormat method? Does it follows this rule equally?

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• Java long task - Did it stop writing to file?

  - by rockit

  I am writing a lot of data to a file, and while keeping my eye on the file it eventually stopped growing in size. Essentially my task is getting information from a database, and printing out all non-unique values in column A. Since there are many rows to the database table, and the database table is across my network, this is taking days to complete. Thus I'm concerned that since the file isn't growing, that it isn't actually writing to the file anymore. Which is odd, I have no "catch"'s in my code, so if there was a problem writing to file, wouldn't it have thrown an error?! Should I let the task complete (estimate 2-3 days from today), or is there something else that I don't know going on here making my application not write to the file?! my algorithm goes something like this Declare file Create new file Open file for writing get database connection get resultset from database for each row in the resultset - write column "A" to file - if row# % 100000 then write to screen "completed " + row# + " rows" when no more rows exist close file write to screen - "completed"

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• how to display a array value in view page

  - by udaya

  Hai I am using codeigniter...I my function phpcalview()... This is my function function phpcalview() { $year = $this->input->post('yearvv'); $data['year'] = $this->adminmodel->selectyear(); $data['date'] = $this->adminmodel->selectmonth(); print_r($data['date'] ); $this->load->view('phpcal',$data); } I am printing the values with print_r($data['date'] ); I get values like Array ( [0] => Array ( [dbdatenum] => 1 ) [1] => Array ( [dbdatenum] => 2 ) [2] => Array ( [dbdatenum] => 3 ) [3] => Array ( [dbdatenum] => 4 )) I want to display the array seperately as array[0],array[1] in my view page how can i do that

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