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  • iPhone dev question: "No provisioned iPhone OS is connected" error, I don't know what else to try fo

    - by dsobol
    Howdy, I am trying to compile and install my first application onto my iPhone after setting up a profile and certificate. At this point I am getting the "No provisioned iPhone OS is connected" error when I Build & Go. I am using iPhone OS 3.1.3, and Xcode 3.2.2 on 10.6.3. • I have verified that my iPhone is connected to my development machine (it is seen on the computer by both iTunes and Xcode Organizer (in Organizer, it has the green dot next to it)). • I have rebooted the iPhone and restarted Xcode multiple times. • I have verified that the Bundle Identifier in my appname.plist is set to com.. (with the appropriate values between the angle brackets). I have looked the error message up on the web, and so far have not found a hint that has gotten me over the hump.... Thanks for any and all assistance! Regards, Steve O'Sullivan

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  • Retrieve checkbox values in viewmodel

    - by Dean Ouellette
    This question has been asked many times but none that I really understand. I have a checkbox list in a generated table. I want to submit the form and retrieve the checkbox values and capture the checked boxes. In the view: <% foreach (var item in Model.Results) { % <%= Html.CheckBox("selectedItem", new { value = item.ItemId })% <% } % In the viewmodel, how should I declare "selectedItem"? as a Inumerable, Int[], .... In the controller I want the viewmodel to contain the list of objects that are selected,so I can submit to the database. Thanks, Dean

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  • Running another ruby script from a ruby script

    - by Andrew Grimm
    In ruby, is it possible to specify to call another ruby script using the same ruby interpreter as the original script is being run by? For example, if a.rb runs b.rb a couple of times, is it possible to replace system("ruby", "b.rb", "foo", "bar") with something like run_ruby("b.rb", "foo", "bar") so that if you used ruby1.9.1 a.rb on the original, ruby1.9.1 would be used on b.rb, but if you just used ruby a.rb on the original, ruby would be used on b.rb? I'd prefer not to use shebangs, as I'd like it to be able to run on different computers, some of which don't have /usr/bin/env. Edit: I didn't mean load or require and the like, but spawning new processes (so I can use multiple CPUs).

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  • How to bind DataTable to Chart series?

    - by user175908
    Hello, How to do bind data from DataTable to Chart series? I get null reference exception. I tried binding with square brackets and it did not worked either. So, how to do the binding? Thanks. P.S: I included DataGrid XAML and CS which works just fine. Converting data to List<KeyValuePair<string,int>> works good but it is kinda slow and is unnessesary trash in code. I use WPFToolkit (the latest version). XAML: <Window x:Class="BindingzTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="606" Width="988" xmlns:charting="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"> <Grid Name="LayoutRoot"> <charting:Chart Title="Letters and Numbers" VerticalAlignment="Top" Height="400"> <charting:Chart.Series> <charting:ColumnSeries Name="myChartSeries" IndependentValueBinding="{Binding Letter}" DependentValueBinding="{Binding Number}" ItemsSource="{Binding}" /> </charting:Chart.Series> </charting:Chart> <DataGrid Name="myDataGrid" VerticalAlignment="Stretch" Margin="0,400,0,50" ItemsSource="{Binding}" AutoGenerateColumns="False"> <DataGrid.Columns> <DataGridTextColumn Header="Letter" Binding="{Binding Letter}"/> <DataGridTextColumn Header="Number" Binding="{Binding Number}"/> </DataGrid.Columns> </DataGrid> <Button Content="Generate" HorizontalAlignment="Left" Name="generateButton" Width="128" Click="GenerateButtonClicked" Height="52" VerticalAlignment="Bottom" /> </Grid> CS: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } DataTable GenerateMyTable() { var myTable = new DataTable("MyTable"); myTable.Columns.Add("Letter"); myTable.Columns.Add("Number"); myTable.Rows.Add("A", 500); myTable.Rows.Add("B", 400); myTable.Rows.Add("C", 500); myTable.Rows.Add("D", 600); myTable.Rows.Add("E", 300); myTable.Rows.Add("F", 200); return myTable; } private void GenerateButtonClicked(object sender, RoutedEventArgs e) { var myGeneratedTable = GenerateMyTable(); myDataGrid.DataContext = myGeneratedTable; myChartSeries.DataContext = myGeneratedTable; // Calling this throws "Object reference not set to an instance of an object" exception } }

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  • How to store a numeric value which can have other statuses in a database?

    - by Jiho Han
    I need to store a set of numbers in a database which are imported from a spreadsheet. Sometimes a number is just a number. But in other times, a value can be "missing", "N/A", or blank and these all represent different things. What would be a good approach to store these numbers in the database? Originally I only had to account for N/A. So I made it -1 as I imported them (this only works if the number can never be negative obviously). I could use other negative numbers for other statuses. However, that seems clunky to me. Should I store the numbers as string then apply conversion at use time? Should I create a matching table that stores different statuses of each value?

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  • ASP.NET ASPX Designer question. Bug?

    - by Velika
    Check out this Screenshot. Shouldn't a hierarchy list of tags appear here? Usually it appears. Sometimes, the tag "appears" there but without text (but the tag object is there as evident when you hover over it.) Other times, like this, nothing appears. It's a usual feature to see the hierarchy or tags which gives me easily access to the tags from design view for easy altering in the properties window. I think too many developers love to do things the hard way and sludge thru tags in HTML view and hardly use this, but it frustrates me when it doesn't work all the time. Is it me? Nah....

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  • What happened to Perl?

    - by llasa
    I will try to keep this as objective as possible. I've been dealing with PHP since 3 years know, I have always known of Perl but never really "dived" into it. So I took a look at some Perl code examples and I thought: Wow, It's like PHP just failed at cloning it. My questions are: What is bad about Perl? What are the disadvantages that made it so extremely unpopular so that it is actually dying right know? Why could PHP take over? What does PHP have (or what did it have in the times of PHP4) that made it rise in popularity compared to Perl? I'm rather young and the questions above are a bit subjective and I think you can only really answer them when you have experienced the rise of PHP along with the fall of Perl. Unless my question before I hope that this one here can be more or less completely answered. There have to be definite disadvantages Perl has compared to PHP that made it fall.

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  • Nutch - how to crawl by small patches?

    - by Yurish
    Hi everyone! I am stuck! Can`t get Nutch to crawl for me by small patches. I start it by bin/nutch crawl command with parameters -depth 7 and -topN 10000. And it never ends. Ends only when my HDD is empty. What i need to do: Start to crawl my seeds with possibility to go further on outlinks. Crawl 20000 pages, then index them. Crawl another 20000 pages, index them and merge with first index. Loop step 3 n times. Tried also with scripts found in wiki, but all scripts i found don't go further. If i run them again, they do everything from beginning. And in the end of script i have the same index i had, when started to crawl. But, i need to continue my crawl. Some help would be very usefull!

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  • XCode 3.2 - can't create Objective-C class

    - by Urizen
    My installation of XCode 3.2 has begun to exhibit some strange behaviour. When I try to add a basic Objective-C classs (inheriting from NSObject), in my iPhone project, I get the following popup: "Alert. Couldn't load the next page". The above-mentioned error happens at the point of trying to create the file (i.e. the creation process doesn't get to the stage where you are asked to input the file name). It might also be worth mentioning that where there previously used to be a description for the file (in the file creation window) it now states "No description available". I can create other files (e.g. UIViewController subclass etc.) but not the basic Objective-C class. I have updated the documentation and restarted the machine and xcode several times without success. I would be extremely grateful for any assistance as I am relatively new to the XCode environment.

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  • Is Lucern.net good choice for website search of 1M item product database? (giving up on SQL Server

    - by Pete Alvin
    We currently have in production SQL Server 2005 and we use it's full text search for a eCommerce site search of a million product database. I've optimized it as much as possible (I think) and we're still seeing search times of five seconds. (We don't need site scrawl or PDF (etc.) document indexing features... JUST "Google" speed for site search.) I was going to buy dtSearch but now I realize I can just use Lucerne.net and save the $2,500 for two server license. I read on a post that Lucerne.Net is not good for website searches. Has anyone else used Lucerne.Net from ASP.Net? Does it take a lot of memory? Any problems? Any comments?

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  • Throw of a die in Java

    - by Arkapravo
    The throw of a die is a popular program in Java, public class Die { /* This program simulates rolling a die */ public static void main(String[] args) { int die; // The number on the die. die = (int)(Math.random()*6 + 1); System.out.println (die); } // end main() } // end class What I wish to do is make it repeat, 500 times. I have not been able to put this program into a loop of 500. I usually program in Python, thus I guess my Java has rusted ! Any help is most welcome !

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  • c# memory allocation and deallocation patterns

    - by Neal
    Since C# uses Garbage Collection. When is it necessary to use .Dispose to free the memory? I realize there are a few situations so I'll try to list the ones I can think of. If I close a Form that contains GUI type object, are those objects dereferenced and therefore will be collected? If I create a local object using new should I .Dispose of it before the method exits or just let the GC take care of it? What is good practice in this case? Are there any times in which forcing a GC is understandable? Are events collected by the GC when it's object is collected?

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  • how to obtain a stack trace when WAMP server crashes ?

    - by mithunmo
    Hello, Some times my WAMP server crashes . I get the following error. HTTP has encountered exception and needs to close. Unreferenced Memory. szAppName : httpd.exe szAppVer : 2.2.11.0 szModName : php5ts.dll szModVer : 5.3.0.0 offset : 0000c309 C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\httpd.exe.mdmp C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\appcompat.txt My question is how to obtain stack trace to debug this problem ? Should I use a windows debugger windows debugger or is there some setting in WAMP server configuration should i enable ?

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  • MySQL problem: How to get desired rows.

    - by Joonas Köppä
    I have been trying to solve this problem for 2 hours now but I cant understand the solutions others have given people with a similar problem. Ive seen some answers but can't apply it to my own needs. I have a table of users and their times in different sports events. I need to make a scoretable that shows the user with the best time, second best etc. The table before sorting and retrieving looks as follows: | Name | Time | Date | '''''''''''''''''''''''''''''''''''''''''''''' | Jack | 03:07:13 | 2010-12-01 | | Peter | 05:03:12 | 2010-12-03 | | Jack | 03:53:19 | 2010-12-04 | | Simon | 03:22:59 | 2010-12-02 | | Simon | 04:01:11 | 2010-12-09 | | Peter | 03:19:17 | 2010-12-06 | '''''''''''''''''''''''''''''''''''''''''''''' | Name | Time | Date | '''''''''''''''''''''''''''''''''''''''''' | Jack | 03:07:13 | 2010-12-01 | | Peter | 03:19:17 | 2010-12-06 | | Simon | 03:22:59 | 2010-12-02 | '''''''''''''''''''''''''''''''''''''''''' I know answers to this problem lie in another question asked on this very site: CLICK HERE I just have no idea how to apply it to fullfill my needs. Help is highly appreciated. Thank you -Joonas

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  • Can't Get Virtual Users Setup in VSFTPD -Tried Everything

    - by N.T.
    Have Ubuntu 11.10 with vsftpd installed and working. Can not get virtual users setup at all? Vsftpd will allow main Ubuntu owner account to login, but nothing else? I've followed several tutorials on adding virtual users, but nothing works? I just need to add 2 virtual users and have them be able to upload files to vsftpd Ubuntu computer from other computers on my Lan network. Everywhere I've looked, people just point toward tutorials on adding virtual users, but that just is NOT working. I've been struggling with this for over a week now! PLEASE Help. Thanks. I'll even give a donation if someone can figure this out. here is the vsftpd.conf file I am using. I copied the original, and make a new one, every time I try a tutorial. So far, none have worked. Here is the vsftpd.conf file I'm using. (I hope this helps?) # Example config file /etc/vsftpd.conf # # The default compiled in settings are fairly paranoid. This sample file # loosens things up a bit, to make the ftp daemon more usable. # Please see vsftpd.conf.5 for all compiled in defaults. # # READ THIS: This example file is NOT an exhaustive list of vsftpd options. # Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's # capabilities. # # # Run standalone? vsftpd can run either from an inetd or as a standalone # daemon started from an initscript. listen=YES # # Run standalone with IPv6? # Like the listen parameter, except vsftpd will listen on an IPv6 socket # instead of an IPv4 one. This parameter and the listen parameter are mutually # exclusive. #listen_ipv6=YES # # Allow anonymous FTP? (Disabled by default) anonymous_enable=YES # # Uncomment this to allow local users to log in. local_enable=YES # # Uncomment this to enable any form of FTP write command. write_enable=YES # # Default umask for local users is 077. You may wish to change this to 022, # if your users expect that (022 is used by most other ftpd's) local_umask=022 # # Uncomment this to allow the anonymous FTP user to upload files. This only # has an effect if the above global write enable is activated. Also, you will # obviously need to create a directory writable by the FTP user. #anon_upload_enable=YES # # Uncomment this if you want the anonymous FTP user to be able to create # new directories. anon_mkdir_write_enable=YES # # Activate directory messages - messages given to remote users when they # go into a certain directory. dirmessage_enable=YES # # If enabled, vsftpd will display directory listings with the time # in your local time zone. The default is to display GMT. The # times returned by the MDTM FTP command are also affected by this # option. use_localtime=YES # # Activate logging of uploads/downloads. xferlog_enable=YES # # Make sure PORT transfer connections originate from port 20 (ftp-data). connect_from_port_20=YES # # If you want, you can arrange for uploaded anonymous files to be owned by # a different user. Note! Using "root" for uploaded files is not # recommended! #chown_uploads=YES #chown_username=whoever # # You may override where the log file goes if you like. The default is shown # below. #xferlog_file=/var/log/vsftpd.log # # If you want, you can have your log file in standard ftpd xferlog format. # Note that the default log file location is /var/log/xferlog in this case. xferlog_std_format=YES # # You may change the default value for timing out an idle session. #idle_session_timeout=600 # # You may change the default value for timing out a data connection. #data_connection_timeout=120 # # It is recommended that you define on your system a unique user which the # ftp server can use as a totally isolated and unprivileged user. #nopriv_user=ftpsecure # # Enable this and the server will recognise asynchronous ABOR requests. Not # recommended for security (the code is non-trivial). Not enabling it, # however, may confuse older FTP clients. #async_abor_enable=YES # # By default the server will pretend to allow ASCII mode but in fact ignore # the request. Turn on the below options to have the server actually do ASCII # mangling on files when in ASCII mode. # Beware that on some FTP servers, ASCII support allows a denial of service # attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd # predicted this attack and has always been safe, reporting the size of the # raw file. # ASCII mangling is a horrible feature of the protocol. #ascii_upload_enable=YES #ascii_download_enable=YES # # You may fully customise the login banner string: ftpd_banner=Welcome to Sage FTP service. # # You may specify a file of disallowed anonymous e-mail addresses. Apparently # useful for combatting certain DoS attacks. #deny_email_enable=YES # (default follows) #banned_email_file=/etc/vsftpd.banned_emails # # You may restrict local users to their home directories. See the FAQ for # the possible risks in this before using chroot_local_user or # chroot_list_enable below. chroot_local_user=YES # # You may specify an explicit list of local users to chroot() to their home # directory. If chroot_local_user is YES, then this list becomes a list of # users to NOT chroot(). #chroot_local_user=YES #chroot_list_enable=YES # (default follows) #chroot_list_file=/etc/vsftpd.chroot_list # # You may activate the "-R" option to the builtin ls. This is disabled by # default to avoid remote users being able to cause excessive I/O on large # sites. However, some broken FTP clients such as "ncftp" and "mirror" assume # the presence of the "-R" option, so there is a strong case for enabling it. #ls_recurse_enable=YES # # Debian customization # # Some of vsftpd's settings don't fit the Debian filesystem layout by # default. These settings are more Debian-friendly. # # This option should be the name of a directory which is empty. Also, the # directory should not be writable by the ftp user. This directory is used # as a secure chroot() jail at times vsftpd does not require filesystem # access. secure_chroot_dir=/var/run/vsftpd/empty # # This string is the name of the PAM service vsftpd will use. pam_service_name=vsftpd local_root=/media/FilesDrive # # This option specifies the location of the RSA certificate to use for SSL # encrypted connections. rsa_cert_file=/etc/ssl/private/vsftpd.pem

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  • Hosting solution for images for website written in PHP

    - by tomaszs
    I've written a website in PHP and it will have ability for users to upload images. My website will have more than 100.000 users. Aprox. 1k users will upload image about 50 KB. And every image will be displayed on this website 5k times so it's transfer of: 1k x 50 KB x 5k = 250 GB per month. So my question is: Do you know any good solution (hosting or CDN network or else) that: will be payed for transfer not space used and no entrance fee will have API to upload images easily with PHP is extremely easy to use will be good for low budget will not require any special, complicated registration and formal things will allow commercial use will allow using this images in website layout ?

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  • Importing a function/class from a Python module of the same name

    - by Brendan
    I have a Python package mymodule with a sub-package utils (i.e. a subdirectory which contains modules each with a function). The functions have the same name as the file/module in which they live. I would like to be able to access the functions as follows, from mymodule.utils import a_function Strangely however, sometimes I can import functions using the above notation, however other times I cannot. I have not been able to work out why though (recently, for example, I renamed a function and the file it was in and reflected this rename in the utils.__init__.py file but it no longer imported as a functions (rather as a module) in one of my scripts. The utils.__init__.py reads something like, __all__ = ['a_function', 'b_function' ...] from a_function import a_function from b_function import b_function ... mymodule.__init__.py has no reference to utils Ideas?

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  • When is assembler faster than C?

    - by Adam Bellaire
    One of the stated reasons for knowing assembler is that, on occasion, it can be employed to write code that will be more performant than writing that code in a higher-level language, C in particular. However, I've also heard it stated many times that although that's not entirely false, the cases where assembler can actually be used to generate more performant code are both extremely rare and require expert knowledge of and experience with assembler. This question doesn't even get into the fact that assembler instructions will be machine-specific and non-portable, or any of the other aspects of assembler. There are plenty of good reasons for knowing assembler besides this one, of course, but this is meant to be a specific question soliciting examples and data, not an extended discourse on assembler versus higher-level languages. Can anyone provide some specific examples of cases where assembler will be faster than well-written C code using a modern compiler, and can you support that claim with profiling evidence? I am pretty confident these cases exist, but I really want to know exactly how esoteric these cases are, since it seems to be a point of some contention.

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  • JSON webservice response compression in IIS 7

    - by denisioru
    Hello! I have trouble with JSON response compression. I look to response headers after uploading website to production server (Windows 2008, IIS 7) and found uncompressed response. Turning on "Enabled static compression" and ""Enable dynamic compression" in IIS control panel does not effect. ASPX pages was responsed gzipped, but webservice response uncompressed. I looked to google, but no answer found about this trouble. Also, I try this http://stackoverflow.com/questions/2405595/json-ihttpmodule-compression way (and adding to web.config this module) - but this source is excellent working at development machine with ASP.NET development server (and have seven times response size reduced) and totally ignored at IIS7. How I can apply gzip compression to json responses from my webservice? Thanks. PS .NET 3.5

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  • It is okay to migrate to Asp.NET 4.0 now?

    - by Tarik
    Okay today, as most of you noticed Framework 4.0 has been released. I've been working on a project which is being built on framework 3.5. Since I want to use dynamic keyword and most of the asp.net features like Tableless Menu Control, ClientIDMode and clean web.config etc. I am kinda urging to migrate the unfinished project to 4.0 but I am little hesitating about that.Some times I think it is way better to wait for SP1. So what do you think about it? You guys will migrate to unfinished projects or will still hang out with 3.5 for a while. Thanks.

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  • Subclipse plugin doesn't work in Eclipse?

    - by blackicecube
    Hi, even though there was no error when installing Subclipse in Eclipse. I won't see the SVN perspective at all? I have tried with "Eclipse Classic 3.5.1" and with "Eclipse for PHP Developers". After downloading and unzipping the packages I used Eclipse's "Install Software" mechanism to install Subclipse 1.6.x. I followed the steps described here: http://www3.math.tu-berlin.de/jreality/mediawiki/index.php/Subclipse_installation_in_eclipse_galileo. But after Eclipse re-starts I don't get any SVN Repository perspective? I have tried to un-install/re-install all the software components many times now. Finally after 3 hours of trying I am giving up. Does anyone have any hint what I am missing? Thanks! Peter

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  • PHP code work on localhost but not webhotel ($_GET)

    - by Mestika
    Hi all, The following code works fine on my WAMP localhost server, but when I try to upload it, to my webhoste, it don't and I'm a bit confused about what's wrong. The code is: <?php if(isset($_GET['menu'])) { if($_GET['menu'] == 3) { echo "<!--Gallery Scripts-->\n"; echo gallery(); } } ?> The purpose is that if the URL is saying: index.php?menu=3 it will run the function "gallery()" which will load the gallery. I'm doing this "trick" several times to avoid the page to load all my JavaScript and function each time the page loads. Thanks Mestika

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  • python: how to convert list of lists into a single nested list

    - by Bhuski
    I have a python list of lists as shown below: mylist=[ [['orphan1', ['some value1']]], [['parent1', ['child1', ['child', ['some value2']]]]], [['parent1', ['child2', ['child', ['some value3']]]]] ] I need to convert the above list to some thing like this: result=[ ['orphan1', ['some value1']], ['parent1', ['child1', ['child', ['some value2']]], ['child2', ['child', ['some value3']]]] ] Kindly help me approach this problem. I have given only simple list. In actual scenario here, in my list, even grand parents/grand childs are there. How much ever deep the input nested list is, I need to convert it to a single nested list, with common list elements (parents and grand parents) appearing only once. (but the next to innermost list element('child' in above example) should appear as many times it occurs in the input list. I have been trying to do this last two days, but did not end up with working solution :(. I need to use the output in django template filter: unordered_list so that the resultant nested list appears as a nested unordered list in my html page ..

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  • How to correctly formalize the command line usage of GNU/Linux commands?

    - by Francesco Turco
    I'd like to write down a BNF-like formal grammar for describing the command line usage of some GNU/Linux tools. For example I can describe the usage of the cat command as: (cat-command) : 'cat' (arguments-list) (arguments-list) : (argument) (arguments-list) : (arguments-list) (argument) (argument) : (file) The problem is I can't write down a precise grammar for some commands such as md5sum. My first attempt at that would be the following: (md5sum-command) : 'md5sum' (arguments-list) (arguments-list) : (argument) (arguments-list) : (arguments-list) (argument) (argument) : (file) (argument) : '--check' But as you can see this grammar allows you to specify the --check argument as many times as you wish, which is incorrect as you should use it at most one time. How can I fix that? Also, what kind of formal grammars I should study for better treating this kind of problems? Thanks.

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  • Spring Weblfow 2 - Double Submit

    - by John W.
    Hello All, I am investigating a possible issue with double submits and I am looking at the possibilty of a double submit from a webflow execution. I have read many times that webflow will handle double submits, there are plenty references here. However I then came across I a forum response on the spring source forums contradicting what I read saying, SWF synchronizes on the conversation. Only one request will be processed at a time per conversation. Take note that if you're using snapshots, then it's possible repeatedly clicking on the submit button will generate a second request. I would recommend setting history to invalidate or discard in the transition from your view-state. We do have snapshots enabled but the book notes that using snapshots actually allows to solve the double submits. Does anyone have any insight on this? Thanks.

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