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  • Custom tool error: Command.proto:11:18: "Message2" is not defined.

    - by cornerback84
    I am using the latest version of protobuf-net with VS2008 integration. I have created 2 messages (Message1 and Message2), 1 message in 1 proto file. When I try to reference Message2 in Message1 the code generator tool gives me error "Message2" is not defined and won't generate the code file. The package for both messages is same. It look like that because of the integration of the tool with VS2008 it expects all the messages in same .proto file to compile. Currently I have to paste an empty message with same name in Message1.proto file, like this: message Message1 { optional Message2 message2 = 1; } message Message2 { } And then later on remove the declaration of class Message2 from Message1.cs. Are there any settings that I need to do so to avoid this error, or is providing an empty declaration the only way?

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  • Setting up Subsonic 3.0 on a ASP.NET web application on Visual Studio 2008

    - by Rob Paul
    I followed the steps on this tutorial video by at subsonic website. Everything seems to be self explanatory but when I copy the .tt files into my Visual Studio nothing happens. I have read other question relating to this problem on this website but they don't seem to fix this problem. I also went into the regedit to find out the generator key for .tt files and it is properly set. This is not a visual studio express or anything but a professional edition also I am trying to build a ASP.net web application and not a MVC application like the demo. Any help will be greatly appreciated. Thank You

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  • Best design for generating code from an AST?

    - by Sam Washburn
    I'm working on a pretty complex DSL that I want to compile down into a few high level languages. The whole process has been a learning experience. The compiler is written in java. I was wondering if anyone knew a best practice for the design of the code generator portion. I currently have everything parsed into an abstract syntax tree. I was thinking of using a template system, but I haven't researched that direction too far yet as I would like to hear some wisdom first from stack overflow. Thanks!

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  • Depth First Search Basics

    - by cam
    I'm trying to improve my current algorithm for the 8 Queens problem, and this is the first time I'm really dealing with algorithm design/algorithms. I want to implement a depth-first search combined with a permutation of the different Y values described here: http://en.wikipedia.org/wiki/Eight_queens_puzzle#The_eight_queens_puzzle_as_an_exercise_in_algorithm_design I've implemented the permutation part to solve the problem, but I'm having a little trouble wrapping my mind around the depth-first search. It is described as a way of traversing a tree/graph, but does it generate the tree graph? It seems the only way that this method would be more efficient only if the depth-first search generates the tree structure to be traversed, by implementing some logic to only generate certain parts of the tree. So essentially, I would have to create an algorithm that generated a pruned tree of lexigraphic permutations. I know how to implement the pruning logic, but I'm just not sure how to tie it in with the permutation generator since I've been using next_permutation. Is there any resources that could help me with the basics of depth first searches or creating lexigraphic permutations in tree form?

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  • Problems installing rdoc, irb, bluecloth, chronic on fedora 12

    - by Vineeth
    Hello, What do these errors mean? [root@localhost config]# gem install bluecloth Building native extensions. This could take a while... ERROR: Error installing bluecloth: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb can't find header files for ruby. Gem files will remain installed in /usr/lib64/ruby/gems/1.8/gems/bluecloth-2.0.7 for inspection. Results logged to /usr/lib64/ruby/gems/1.8/gems/bluecloth-2.0.7/ext/gem_make.out [root@localhost config]# And this [root@localhost config]# gem install chronic Successfully installed json_pure-1.4.3 Successfully installed rubyforge-2.0.4 Successfully installed hoe-2.6.0 Successfully installed chronic-0.2.3 4 gems installed /usr/lib64/ruby/gems/1.8/gems/rdoc-2.5.8/lib/rdoc/ruby_lex.rb:67: warning: parenthesize argument(s) for future version ERROR: While executing gem ... (Gem::DocumentError) ERROR: RDoc documentation generator not installed: no such file to load -- irb/slex [root@localhost config]# I have installed rdocs using "yum install ruby-rdocs". But I don't understand what this error means

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  • How to automatically change a parameter in Reporting Services when another is changed?

    - by Victor Rodrigues
    I have a 'Product' parameter in my report. Depending on the product the user chooses, it will call the report generator stored procedure from a different data source. Looking at this article, I've found how to do the first part of this solution. I've created two internal parameters, Server and Database, and the connection string will use them to connect to the right database. But I need to set this two parameters when the user chooses a product. How could I do this? (If @Product = X) = @Server = Y, @Database = Z

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  • How to preserve whitespace indentation of text enclosed in HTML <pre> tags excluding the current indentation level of the <pre> tag in the document?

    - by Michael Barton
    I'm trying to display my code on a website but I'm having problems preserving the whitespace indentation correctly. For instance given the following snippet: <html> <body> Here is my code: <pre> def some_funtion return 'Hello, World!' end </pre> <body> </html> This is displayed in the browser as: Here is my code: def some_funtion return 'Hello, World!' end When I would like it displayed as: Here is my code: def some_funtion return 'Hello, World!' end The difference is that that current indentation level of the HTML pre tag is being added to the indentation of the code. I'm using nanoc as a static website generator and I'm using google prettify to also add syntax highlighting. Can anyone offer any suggestions?

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  • Tools and ways to generate HTML help for built-in help system (QtHelp)?

    - by BastiBense
    Hello, I'm in the progress of implementing a built-in help system based on QtHelp into my application. Since QtHelp is based on Qt's help collection files, I need to produce a set of HTML pages. Since I won't be writing the documentation alone (a few of my colleagues will write, too), I am looking for the best way to produce these files. We are internally using a Wiki, and I know that the documentation should be written in some kind of markup language instead of giving all authors a WYSIWYG HTML editor. So my question is, are there tools out there which help with the process of generating documentation that can be exported as a set of HTML files, and possibly, as PDFs, too?. Thanks in advance! Update: I'm already using Doxygen for C++ documentation generation. But I'm not exactly looking for an API-Documentation generator, but something like LaTeX, which allows you to format the documentation contents like a markup document (much like a Wiki).

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  • Generating short license keys with OpenSSL

    - by Marc Charbonneau
    I'm working on a new licensing scheme for my software, based on OpenSSL public / private key encryption. My past approach, based on this article, was to use a large private key size and encrypt an SHA1 hashed string, which I sent to the customer as a license file (the base64 encoded hash is about a paragraph in length). I know someone could still easily crack my application, but it prevented someone from making a key generator, which I think would hurt more in the long run. For various reasons I want to move away from license files and simply email a 16 character base32 string the customer can type into the application. Even using small private keys (which I understand are trivial to crack), it's hard to get the encrypted hash this small. Would there be any benefit to using the same strategy to generated an encrypted hash, but simply using the first 16 characters as a license key? If not, is there a better alternative that will create keys in the format I want?

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  • How to implement a good system for login/out into a webapp

    - by Brandon Wang
    I am one of the developers at PassPad, a secure password generator and username storage system. We're still working on it, but I have a few questions on the best way to implement a secure login/out system. Right now, what we plan on doing is to have the login system save a cookie with the username and a session key, and that's all that serves as authentication. The server verifies the two to match. Upon login/out a new key is created. This is a security-related webapp and while we don't actually store any information that might make the user queasy, because it is security-oriented it makes it a necessity for us to at least appear secure in a way that the user would be happy with. Is there a better way to implement a login/out system in PHP? Preferably it won't take too much coding time or server resources. Is there anything else I need to implement, like brute-force protection, etc? How would I go about that?

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  • Obtaining references to function objects on the execution stack from the frame object?

    - by Marcin
    Given the output of inspect.stack(), is it possible to get the function objects from anywhere from the stack frame and call these? If so, how? (I already know how to get the names of the functions.) Here is what I'm getting at: Let's say I'm a function and I'm trying to determine if my caller is a generator or a regular function? I need to call inspect.isgeneratorfunction() on the function object. And how do you figure out who called you? inspect.stack(), right? So if I can somehow put those together, I'll have the answer to my question. Perhaps there is an easier way to do this?

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  • Quickly generate/publish RSS feeds from ASP.NET projects?

    - by jdk
    Under a timeline, therefore the salient point is "quickly" and willing to throw some $ at it too (doesn't have to be a free solution). Looking for an RSS feed generator usuable in .NET framework 2.0. Ideally it would be easy to use (inferred quick) but flexible enough to support the multiple standards (shown part way down this page). We have the business classes in .NET and want to publish RSS feeds on the ASP.NET website. Any software that's good? Doesn't have to be free. Must support .NET framework 2.0 Thanks.

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  • What does 'salt' refer to in string-to-key (s2k) specifier?

    - by WilliamKF
    What does 'salt' refer to in string-to-key (s2k) specifier? It appears to be a random number generator to shake things up, but I would like to know what 'salt' stands for? For example it is written: 3.6.1.2. Salted S2K This includes a "salt" value in the S2K specifier -- some arbitrary data -- that gets hashed along with the passphrase string, to help prevent dictionary attacks. Octet 0: 0x01 Octet 1: hash algorithm Octets 2-9: 8-octet salt value Salted S2K is exactly like Simple S2K, except that the input to the hash function(s) consists of the 8 octets of salt from the S2K specifier, followed by the passphrase. But salt is not defined, although its meaning seems clear.

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  • Cookie: ASP.NET SessionId Issue

    - by LB
    I have a load generator that appends a ASP.NET_SessionId to the Cookie when making a Soap test call from Machine A to Machine B. Cookie: ASP.NET_SessionId=gf0ouay24sdneiuicpiggn45; However, when I'm running the soap test hitting my local server it doesn't have an ASP.NET_Session variable in the cookie. Why is this happening? UPDATE: I'm getting this issue now on the server: Forms authentication failed for the request. Reason: The ticket supplied was invalid. I've followed this: http://msmvps.com/blogs/omar/archive/2006/08/20/108307.aspx But to no avail.

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  • Sequence Generators in T-SQL

    - by PaoloFCantoni
    We have an Oracle application that uses a standard pattern to populate surrogate keys. We have a series of extrinsic rows (that have specific values for the surrogate keys) and other rows that have intrinsic values. We use the following Oracle trigger snippet to determine what to do with the Surrogate key on insert: 'IF :NEW.SurrogateKey IS NULL THEN SELECT SurrogateKey_SEQ.NEXTVAL INTO :NEW.SurrogateKey FROM DUAL; END IF;' If the supplied surrogate key is null then get a value from the nominated sequence, else pass the supplied surrogate key through to the row. I can't seem to find an easy way to do this is T-SQL. There are all sorts of approaches, but none of which use the notion of a sequence generator like Oracle and other SQL-92 compliant DBs do. Anybody know of a really efficient way to do this in SQL Server T-SQL? BTW we're using SQL Server 2008 if that's any help. TIA, Paolo

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  • Hibernate: same generated value in two properties

    - by Markos Fragkakis
    Hi, I have an entity A with fields: aId (the system id) bId I want the first to be generated: @Id @Column(name = "PRODUCT_ID", unique = true, nullable = false, precision = 12, scale = 0) @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "PROD_GEN") @BusinessKey public Long getAId() { return this.aId; } I want the bId to be initially exactly as the aId. One approach is to insert the entity, then get the aId generated by the DB (2nd query) and then update the entity, setting the bId to be equal to aId (3rd query). Is there a way to get the bId to get the same generated value as aId? Note that afterwards, I want to be able to update bId from my gui. If the solution is JPA, even better.

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  • What does Rails script/server -d do differently that would cause a cells template to not be found

    - by Brian Deterling
    I'm using cells. I used the generator to create a cell so the path to my template was automatically chosen to be app/cells/displayer/table.html.erb where displayer is the name of the cell and table is the name of the state. When I run script/server in the foreground, everything works perfectly. But when I run script/server -d, I get "Missing template displayer/table.erb in view path app/cells:app/cells/layouts". Even if I change table.html.erb to table.erb, I see the same message - the ActionView code is checking both but not finding either. Even if you're not familiar with cells, does anyone know what happens differently in daemon mode related to view paths? In this case, it appears that the plugin is not correctly registering the view path.

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  • how to use random bits to simulate a fair 26-sided die?

    - by Michael Levin
    How do I use a random number generator that gives bits (0 or 1) to simulate a fair 26-sided die? I want to use a bitstream to pick letters of the English alphabet such that the odds of any one letter coming up is the same as the odds of any other letter (I know real words aren't like that and have specific frequency distributions for each letter but it doesn't matter here). What's the best way to use binary 0/1 decisions to pick letters fairly from the set A-Z? I can think of a few ways to map bits onto letters but it's not obvious to me that they won't be biased. Is there a known good way?

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  • Google Maps API Key alert problem

    - by taudorf
    I have a problem with my Google Maps API key. I get an alert saying "This web site needs a different Google Maps API key." When I prees OK to the alert the map are loading and working fine. The same problem is already posted: http://stackoverflow.com/questions/1803327/google-maps-api-key-not-working I have tried to request the API key for both "http://www.domain.com" and "http://domain.com" but I still get the alert. When I follow the instructions from their FQA and use alert(window.location.host) I get www.domain.com but the api key generator will only accept the domain if the prefix is http:// Does anyone have a solution to this?

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  • dompdf font family issue

    - by user335915
    Hello, I'm using Bamboo invoice as an invoice generator, and I'm trying to customize the invoice template, but no matter what I do, the font just won't seem to adjust. currently I have body { margin: 0.5in; font-family: 'helvetica'; font-size: 10pt;} I've read up on it, and helvetica is an installed font, so it should work to make sure I changed it to 'courier'; which is also in the lib/fonts directory, but the font remains the same. Any help? thanks in advance !

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  • JAVA: storing input into array

    - by Jann
    I need to write a program where the program would generate random letter and i would need to store this random character into an array char[] arrayRandom = new char[10]; for (int i = 0; i < 8; i++) { randomNumLet = (generator.nextInt(20) + 1); System.out.print(arrayRandomLetter[randomNumLet] + " "); arrayRandomLetter[randomNumLet] = arrayRandom[i]; } is there anything wrong with my code? because when i run this and printed the array i get boxes for all the values in the array and there are some letter that this line of code cannot print System.out.print(arrayRandomLetter[randomNumLet] + " "); Thanks

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  • How to generate a good random seed to pass to srand()?

    - by zr
    Hi, I am writing a C++ program which needs to create a temporary file for its internal usage. I would like to allow concurrent executions of the program by running multiple proccesses, so the temporary file name needs to be randomized, that way each spawned process will generate a unique temporary file name for its own use. I am using rand() to generate random characters for part of the file name, so i need to initialize the random number generator's seed using srand(). What options are there for passing a good argument to srand() such that two processes will not be initialized with the same seed value? My code needs to work both on Windows and pn Linux TIA.

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  • summer experiment: GWT & python for a trading game- arch question

    - by sadhu_
    Hi, As a summer learning experiment, I'm thinking of coding up a web front end for a trading game i wrote in python, that generates share prices and random snippets of text. I am sort of struggling with how this should work on the back-end though. I'd rather have my GWT client page interact with the python share price generator, than to try and re-code it in java. I suppose i could use an sqlite db, and then use jdbc to pick up the prices, but i was wondering if there is a better way, for me to be able to poll some python script either from my client page, or from the serverside java code ? I found this python wrapper, but i'm not sure how i could use it though: http://code.google.com/apis/visualization/documentation/dev/gviz_api_lib.html Thanks.

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  • Join a single row in one table to n random rows in another

    - by Einar Egilsson
    Is it possible to make a join in SQL server that joins each row from table A to n random rows in another? For example, say I have a Customer table, a Product table and an Order table. I want to join each customer to 5 random products and insert these rows into the order table. (And each customer should be joined to 5 random rows of his own, I don't want all customers joining to the same 5 rows). Is this possible? I'm using SQL Server 2005 and it's fine if the solution is specific to that. This is a weird requirement but I'm basically making a small data generator to generate some random data.

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  • How to use AVAudioPlayer to play M4P

    - by SimpleCode
    I want to use AVAudioPlayer to play M4p files from iTunes generator. I could use uiWebView to play it and it worked, but I want to put an image of my choice on the background of the player instead of the "quick time" logo. Can you help me as how to do this? Here is an example of the m4p file I want to play with AVAudioPlayer. http://a801.phobos.apple.com/us/r1000/059/Music/b9/0d/be/mzi.zqnndbil.aac.p.m4p Seriously, big thanks in advance!!

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