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  • How to parse a binary file using Javascript and Ajax

    - by Alex Jeffery
    I am trying to use JQuery to pull a binary file from a webserver, parse it in Javascript and display the contents. I can get the file ok and parse some of the file correctly. How ever I am running into trouble with one byte not coming out as expected. I am parsing the file a byte at a time, it is correct until I get to the hex value B6 where I am getting FD instead of B6. Function to read a byte data.charCodeAt(0) & 0xff; File As Hex: 02 00 00 00 55 4C 04 00 B6 00 00 00 The format I want to parse the file out into. short: 0002 short: 0000 string: UL short: 0004 long: 0000B6 Any hints as to why the last value is incorrect?

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  • display gnu diff in HTML

    - by acidzombie24
    Is there a lib i can use to diff between two pieces of code and display it in html? I am using diff - GNU diffutils version 2.7, C#, asp.net. I dont mind the code being in javascript. I would like just the output with color text + css. I'll build the page around it. Does anyone know a suitable lib?

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  • Find/parse server-side <?abc?>-like tags in html document

    - by Iggyhopper
    I guess I need some regex help. I want to find all tags like <?abc?> so that I can replace it with whatever the results are for the code ran inside. I just need help regexing the tag/code string, not parsing the code inside :p. <b><?abc print 'test' ?></b> would result in <b>test</b> Edit: Not specifically but in general, matching (<?[chars] (code group) ?>)

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  • How to tell when an HTML textarea has been changed by Javascript

    - by at
    A widget I'm using modifies an HTML textarea element. I need to know when that element has been modified and preferably I'd like to actually hide that element as well. I'm using jQuery, so I naturally tried the $('#textarea_id').change() event. But it's never triggered because I guess the textarea never loses focus. What's the best way to monitor that textarea, preferably hidden (css has display:none)? Please don't tell me setInterval...

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  • concatenating strings from two different rows in a table

    - by Azeem
    Hello, We are attempting to rework the SQL in a product. The product stores XML in a table as follows: XML_STORAGE - UID IDENTITY - PARENT_ID INTEGER - SEQ INTEGER - XML VARCHAR(3800) The current way of doing this is as follows: Retrieve all ROWS for PARENT_ID = n. Then go over the fetched rows in the code and concatenate the XML strings into one large XML before parsing. The SEQ column is used to ORDER the result so the XML strings can be concatenated properly. Hopefully that is clear. What we are attempting to do is rework this so we can use a SQL variant to retrieve the whole string and just fetch one row back from DB2. Is there a DB2 function that will allow us to concatenate the string in all of these rows into one large string in the resultset. How would such a SQL look. Please let me know. Any help is much appreciated. Thanks! - Azeem

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  • BeautifulSoup: Get the contents of a specific table

    - by Adam Matan
    Hi, My local airport disgracefully blocks users without IE, and looks awful. I want to write a Python scripts that would get the contents of the Arrival and Departures pages every few minutes, and show them in a more readable manner. My tools of choice are mechanize for cheating the site to believe I use IE, and BeautifulSoup for parsing page to get the flights data table. Quite honestly, I got lost in the BeautifulSoup documentation, and can't understand how to get the table (whose title I know) from the entire document, and how to get a list of rows from that table. Any ideas? Adam

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  • Can Hibernate default a Null String to Empty String

    - by sliver
    In our application we are pulling data from a DB2 mainframe database. If the database has "low values" in a field, hibernate sends a "null" value in the object. This occurs even if the column is defined as "not null". As we are doing XML parsing on this, Castor is having trouble with it. I would like to fix this in Hibernate. Also, all of the hibernate hbm files are generated, so we can't mess with them (they are regened from time to time.) Any way to intercept all Strings and replace nulls with ""?

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  • Adding custom styles to ckeditor

    - by Roland
    I recently added CKEditor to my app, I'm new to CKEditor and I would like to include my own css style sheets within the editor so that I can select them within the editor. Ho do I accomplish this my code sofar looks like this <script type="text/javascript"> CKEDITOR.replace( 'editor1',{ uiColor : '#9AB8F3', }); </script>

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  • How to retrieve email from GMail account using PHP?

    - by Tatu Ulmanen
    Hi, I'm trying to automatically retrieve some email from my GMail account for further parsing, but I can't get my head around on how to do that. I've searched the internets and it suggested that I use PHP's imap functions, like this: $server = '{imap.gmail.com:993/ssl}'; $connection = imap_open($server, '[email protected]', 'password'); But using that code, I get: Warning: imap_open() [function.imap-open]: Couldn't open stream {imap.gmail.com:993/ssl} Any idea what I am doing wrong? Any server setting that might be preventing me from making a connection to GMail (I'm using a shared service)? Is the address even right? Has anyone ever managed to do something like this? I've found tons of examples on how to send email via GMail, but very little of retrieving. Any help is much appreciated.

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  • xml pahsing issue..

    - by 3gwebtrain
    HI, any one help me in this xml parsing issue? my xml is : name my jquery is : $(function(){ $.get("shop.xml", function(data){ var shopInfo = $(data).find("shop").attr('title'); var showowner = $(data).find("raj").attr('title'); alert(shopInfo+':'+showowner); }) }) when i alret in firefox it alret the shopInfo as "null" and showowner "title" and i case if i check with ie, and chrome, i am getting "null:null" in the alert message. any one tell me what is the wrong i am doing here? i need my jquery need to get xml data properly from to all browsers, for that any suggestion please?

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  • how to translate Haskell into Scalaz?

    - by TOB
    One of my high school students and I are going to try to do a port of Haskell's Parsec parser combinator library into Scala. (It has the advantage over Scala's built-in parsing library that you can pass state around fairly easily because all the parsers are monads.) The first hitch I've come across is trying to figure out how Functor works in scalaz. Can someone explain how to convert this Haskell code: data Reply s u a = Ok a !(State s u) ParseError | Error ParseError instance Functor (Reply s u) where fmap f (Ok x s e) = Ok (f x) s e fmap _ (Error e) = Error e -- XXX into Scala (using Scalaz, I assume). I got as far as sealed abstract class Reply[S, U, A] case class Ok[S, U, A](a: A, state: State[S, U], error: ParseError) extends Reply[S, U, A] case class Error[S, U, A](error: ParseError) extends Reply[S, U, A] and know that I should make Reply extend the scalaz.Functor trait, but I can't figure out how to do that. (Mostly I'm having trouble figuring out what the F[_] parameter does.) Any help appreciated! Thanks, Todd

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  • HTTP caching confusion

    - by Keith
    I'm not sure whether this is a server issue, or whether I'm failing to understand how HTTP caching really works. I have an ASP MVC application running on IIS7. There's a lot of static content as part of the site including lots of CSS, Javascript and image files. For these files I want the browser to cache them for at least a day - our .css, .js, .gif and .png files rarely change. My web.config goes like this: <system.webServer> <staticContent> <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="1.00:00:00" /> </staticContent> </system.webServer> The problem I'm getting is that the browser (tested Chrome, IE8 and FX) doesn't seem to be caching the files as I'd expect. I've got the default settings (check for newer pages automatically in IE). On first visit the content downloads as expected HTTP/1.1 200 OK Cache-Control: max-age=86400 Content-Type: image/gif Last-Modified: Fri, 07 Aug 2009 09:55:15 GMT Accept-Ranges: bytes ETag: "3efeb2294517ca1:0" Server: Microsoft-IIS/7.0 X-Powered-By: ASP.NET Date: Mon, 07 Jun 2010 14:29:16 GMT Content-Length: 918 <content> I think that the Cache-Control: max-age=86400 should tell the browser not to request the page again for a day. Ok, so now the page is reloaded and the browser requests the image again. This time it gets an empty response with these headers: HTTP/1.1 304 Not Modified Cache-Control: max-age=86400 Last-Modified: Fri, 07 Aug 2009 09:55:15 GMT Accept-Ranges: bytes ETag: "3efeb2294517ca1:0" Server: Microsoft-IIS/7.0 X-Powered-By: ASP.NET Date: Mon, 07 Jun 2010 14:30:32 GMT So it looks like the browser has sent the ETag back (as a unique id for the resource), and the server's come back with a 304 Not Modified - telling the browser that it can use the previously downloaded file. It seems to me that would be correct for many caching situations, but here I don't want the extra round trip. I don't care if the image gets out of date when the file on the server changes. There are a lot of these files (even with sprite-maps and the like) and many of our clients have very slow networks. Each round trip to ping for that 304 status is taking about a 10th to a 5th of a second. Many also have IE6 which only has 2 HTTP connections at a time. The net result is that our application appears to be very slow for these clients with every page taking an extra couple of seconds to check that the static content hasn't changed. What response header am I missing that would cause the browser to aggressively cache the files? How would I set this in a .Net web.config for IIS7? Am I misunderstanding how HTTP caching works in the first place?

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  • How to unescape String in Rails

    - by Midday
    I have a long String from a WYSIWYG (in my case YUI) which I then send as html email. since its an email all CSS needs to be inline so how should i unescape this: <span style=\"color: #c00000; font-size: 14px;\"> Is .gsub '\"' , '"' enough?

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  • bad performance from too many caught errors?

    - by Christopher Klein
    I have a large project in C# (.NET 2.0) which contains very large chunks of code generated by SubSonic. Is a try-catch like this causing a horrible performance hit? for (int x = 0; x < identifiers.Count; x++) {decimal target = 0; try { target = Convert.ToDecimal(assets[x + identifiers.Count * 2]); // target % } catch { targetEmpty = true; }} What is happening is if the given field that is being passed in is not something that can be converted to a decimal it sets a flag which is then used further along in the record to determine something else. The problem is that the application is literally throwing 10s of thousands of exceptions as I am parsing through 30k records. The process as a whole takes almost 10 minutes for everything and my overall task is to improve that time some and this seemed like easy hanging fruit if its a bad design idea. Any thoughts would be helpful (be kind, its been a miserable day) thanks, Chris

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  • How to access system.webserver web.config node in .NET 2

    - by JK
    Are there any .NET APis that can read/update the system.webServer node in web.config? I know I can do it via reading/parsing the web.config file as xml but that's awkward. To read/update the system.web node in .NET 2 I can use: HttpModulesSection httpModulesSection = (HttpModulesSection)configuration.GetSection("system.web/httpModules"); But is there any API based way of accessing system.web/modules using .NET 2? I have to reference the .NET 2 version of system.web.configuration because I don't know in advance if my web app will be run on a server with .NET 2 or 3.5. So it is limited to .NET 2 API calls only. Thanks

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  • JSTL Session Lookup - Key Has Periods

    - by John W.
    Hello All, I am working with some legacy code, and at some point there is a key in the session that is something like session.setAttribute("com.org.something.Object",someObject); Now trying to access this in a jsp using jstl is a bit difficult becuase if I tried it like I normally would I would do: ${sessionScope.com.org.something.Object.someFieldGetter} As most of us can imagine it will fail because there is no com object in session scope. I also tried ${sessionScope.'com.org.something.Object'.someFieldGetter} And a parsing error was thrown. Does anyone know how to resolve this so that I can correctly get the object similar to session.getAttribute("com.org.something.Object") but through jstl? thank you.

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  • How to implement arrays in an interpreter?

    - by Ray
    I have managed to write several interpreters including Tokenizing Parsing, including more complicated expressions such as ((x+y)*z)/2 Building bytecode from syntax trees Actual bytecode execution What I didn't manage: Implementation of dictionaries/lists/arrays. I always got stuck with getting multiple values into one variable. My value structure (used for all values passed around, including variables) looks like this, for example: class Value { public: ValueType type; int integerValue; string stringValue; } Works fine with integers and strings, but how could I implement arrays? (From now on with array I mean arrays in my experimental language, not in C++) How can I fit the array concept into the Value class above? Is it possible? How should I make arrays able to be passed around just as you could pass around integers and strings in my language, using the class above? Accessing array elements or memory allocation wouldn't be the problem, I just don't know how to store them.

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  • Beginning OS X & iPhone Development: Reference texts

    - by twinbornJoint
    My programming experience is limited to xhtml, css, php, sql and some javascript. The books I have are: Programming in Objective-C 2nd Edition Beginning iPhone Development Cocoa(R) Programming for Mac(R) OS X (Paperback) Is there anything else I will need to get started on my journey into iPhone/OS X development?

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  • How do I display a jquery dialog box before the entire page is loaded?

    - by obarshay
    On my site a number of operations can take a long time to complete. When I know a page will take a while to load, I would like to display a progress indicator while the page is loading. Ideally I would like to say something along the lines of: $("#dialog").show("progress.php"); and have that overlay on top of the page that is being loaded (disappearing after the operation is completed). Coding the progress bar and displaying progress is not an issue, the issue is getting a progress indicator to pop up WHILE the page is being loaded. I have been trying to use JQuery's dialogs for this but they only appear after the page is already loaded. This has to be a common problem but I am not familiar enough with JavaScript to know the best way to do this. Here's simple example to illustrate the problem. The code below fails to display the dialog box before the 20 second pause is up. I have tried in Chrome and Firefox. In fact I don't even see the "Please Wait..." text. Here's the code I am using: <html> <head> <link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" /> <script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script> <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script> <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.dialog.js"></script> </head> <body> <div id="please-wait">My Dialog</div> <script type="text/javascript"> $("#please-wait").dialog(); </script> <?php flush(); echo "Waiting..."; sleep(20); ?> </body> </html>

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  • NHibernate Named Query Parameter Numbering @p1 @p2 etc

    - by IanT8
    A colleague recently ran into a problem where he was passing in a single date parameter to a named query. In the query, the parameter was being used twice, once in an expression and once in a GROUP BY clause. Much to our surprise, we discovered that NHibernate used two variables and sent the single named parameter in twice, as @p1 and @p2. This behaviour caused SQL to fail the query, with the usual "a column in the select clause is not in the group by clause" (I paraphrase ofcourse). Is this behaviour normal? Can it be changed? Seems to me that if you have a parameter name like :startDate, NHibernate only needs to pass in @p1 no matter how many times you might refer to :startDate in the query. Any comments? The problem was worked around by using another sub-query to overcome the SQL parsing error.

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