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  • LaTeX at symbol

    - by secondbanana
    What does the @ symbol mean in LaTeX? I'm looking at the source of apa.cls, and there's a declaration: \newsavebox\gr@box and later on \sbox\gr@box{\includegraphics[width=\linewidth]{#2}}. It seems like @ isn't acting as a normal character, but I can't figure out exactly what it's doing, and couldn't find anything after bit of googling (how I would love a Google regex feature!) Thanks. EDIT: Thanks for the help; of the links I looked through I found http://www.tug.org/pipermail/tugindia/2002-January/000178.html to be very helpful and concise. To summarize, the @ character is not normally allowed in the names of macros, so as a hack for scoping, LaTeX packages declare it internally to be a valid name character and use it for their macros. You can use \makeatletter in a document to access these macros, but you obviously must be very careful since you have can now overwrite essential LaTeX kernel macros; use \makeatother to revert.

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  • Polling duplex does not scale... what's the alternative?

    - by user80855
    Our tests showed that the polling duplex binding simply does not scale and can not be used on a service within a web-farm or even a web garden. We have looked at TCP/IP sockets for a client push method, but the firewall issue is does allow us to use sockets. I was wondering what is the alternative "free" solution to this problem? allowing us to scale and allowing us to push data to client... I have also tried the solution in this article http://tomasz.janczuk.org/2009/09/scale-out-of-silverlight-http-polling.html but at the end, there was too much polling on a database, and performance was affected. Our Silverlight application need a pub/sub design, but it needs to be reliable and scalable... any ideas?

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  • OpenGL Motion blur with the accumulation buffer in WxWidgets

    - by Klaus
    Hello, I'm trying to achieve a motion blur effect in my OpenGL application. I read somewhere this solution, using the accumulation buffer: glAccum(GL_MULT, 0.90); glAccum(GL_ACCUM, 0.10); glAccum(GL_RETURN, 1.0); glFlush(); at the end of the render loop. But nothing happens... What am I missing ? Additions after genpfault answer: Indeed I did not asked for an accumulation buffer when I initialized my context. So I tried to pass an array of attributes to the constructor of my wxGLCanvas, as described here: http://docs.wxwidgets.org/2.6/wx_wxglcanvas.html : int attribList[]={ WX_GL_RGBA , WX_GL_DOUBLEBUFFER , WX_GL_MIN_ACCUM_RED, WX_GL_MIN_ACCUM_GREEN, WX_GL_MIN_ACCUM_BLUE, 0} But all I get is a friendly Seg fault. Does someone understand how to use this ? (no problems with int attribList[]={ WX_GL_RGBA , WX_GL_DOUBLEBUFFER , 0})

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  • jcaptcha integration with struts

    - by xain
    Hi, I'm trying to interate a struts 1.3.8 app with jcaptcha-1.0; I added the jcaptcha jar to the app lib and added <%@ taglib uri="jcaptcha" prefix="jcaptcha"%> to my form The app couldn't find the file, so I added the following to the web.xml file <taglib-uri>jcaptcha</taglib-uri> <taglib-location>/WEB-INF/lib/jcaptcha-1.0-all.jar</taglib-location> </taglib> And now I get the null pointer exception: org.apache.jasper.JasperException: Unable to read TLD "META-INF/taglib.tld" from JAR file Any clues ? Thanks

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  • xml intellisense with Eclipse Europa?

    - by Maddy.Shik
    Please suggest some free tools or some in build feature in Eclipse for intellisense of xml. I am using Eclipse Europa which is for EE java developers. <?xml version ="1.0" encoding = "UTF-8"?> <tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://jtestcase.sourceforge.net/dtd/jtestcase2.xsd"> </tests> Xml code above is part of xml file i am working upon. I am expecting eclipse to suggest me tags based upon xsd specified above. I am using ctrl+space for suggestion of new tag. Please suggest if i am using wrong key for intellisense or am i missing some tool or plugin. Thanks

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  • simpledateformat parsing date with 'Z' literal

    - by DanInDC
    I am trying to parse a date that looks like this: 2010-04-05T17:16:00Z This is a valid date per http://www.ietf.org/rfc/rfc3339.txt. The 'Z' literal "imply that UTC is the preferred reference point for the specified time." If I try to parse it using SimpleDateFormat and this pattern: yyyy-MM-dd'T'HH:mm:ss It will be parsed as a Mon Apr 05 17:16:00 EDT 2010 SimpleDateFormat is unable to parse the string with these patterns: yyyy-MM-dd'T'HH:mm:ssz yyyy-MM-dd'T'HH:mm:ssZ I can explicitly set the TimeZone to use on the SimpleDateFormat to get the expected output, but I don't think that should be necessary. Is there something I am missing? Is there an alternative date parser?

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  • Creating XML with Rebol and rebelxml

    - by Rebol Tutorial
    The example in doc http://www.rebol.org/documentation.r?script=rebelxml.r to create XML works >> clear-xml-data == "" >> set-xml-data/content 'test/test "test" == "<test><test>test</test></test>" >> but when I want to create some variants it doesn't seem to work: >> clear-xml-data == "" >> set-xml-data/content 'test "test" ** Script Error: foreach expected data argument of type: series ** Where: set-xml-data ** Near: foreach tag path [ sub-rule: copy [] append sub-rule reduce [ 'thru to-open-tag tag ] if all [... >> this one doesn't work either: >> clear-xml-data == "" >> set-xml-data/content/with-attribute 'test/test "test" 'id "500" == "" >> Is there something wrong in my syntax ?

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  • Level of SVG SMIL (animation) support among the browsers

    - by user246114
    Hi, Does anyone know the current state of SVG SMIL animation support in the popular browsers? It looks like Safari, Chrome, and Opera support it. Firefox has confusing reports in their dev pages about SMIL support having been added, but I don't see it as of v3.6: https://bugzilla.mozilla.org/show_bug.cgi?id=216462 I am ignoring IE since they don't even support SVG at all, and probably never will, much less SMIL. The other thing - just comparing this test page between Safari, Chrome, and Opera: http://srufaculty.sru.edu/david.dailey/svg/ovaling.svg looks like Opera is the only one that renders it correctly. Should we not be using SMIL - kind of looks half-baked in all the browsers (sadly)? Blast. Thanks

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  • How does Facebook chat avoid continuous polling of the server?

    - by Chad Johnson
    I am trying to understand how Facebook's chat feature receives messages without continuously poling the server. Firebug shows me a single GET XmlHttpRequest continuously sitting there, waiting for a response from the server. After 5 minutes, this never timed out. How are they preventing timeout? An AJAX request can just sit there like that indefinitely, waiting for a response? Can I do this with JSONRequest? I see this at json.org: JSONRequest is designed to support duplex connections. This permits applications in which the server can asynchronously initiate transmissions. This is done by using two simultaneous requests: one to send and the other to receive. By using the timeout parameter, a POST request can be left pending until the server determines that it has timely data to send. Or is there another way to let an AJAX call just sit there, waiting, besides using JSONRequest?

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  • SLF4J, Common Logging, console output

    - by Mauricio Scheffer
    I have this 3rd party library that has: slf4j-api-1.5.5.jar slf4j-jdk14-1.5.5.jar jcl-over-slf4j-1.5.5.jar I want to write some tests against this library and see its log output, and I don't want to add any more logging libraries (no log4j or anything else). I understand that SLF4J and Common Logging are both logging abstractions so I probably need to write my own simple concrete logger (or maybe not, since jcl-over-slf4j includes org.apache.commons.logging.impl.SimpleLog?). If so, what interfaces should I implement, and more importantly, how do I set up SL4J/Common Logging to use my logger in my test? I read in the SLF4J docs that I have to modify the StaticLoggerBinder class... does that really mean that I actually have to download SLF4J sources, modify the class and recompile it?

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  • Python TKinter connect variable to entry widget

    - by Sano98
    Hi everyone, I'm trying to associate a variable with a Tkinter entry widget, in a way that: Whenever I change the value (the "content") of the entry, mainly by typing something into it, the variable automatically gets assigned the value of what I've typed. Without me having to push a button "Update value " or something like that first. Whenever the variable gets changed (by some other part of the programm), I want the entry value displayed to be adjusted automatically. I believe that this could work via the textvariable. I read the example on http://effbot.org/tkinterbook/entry.htm, but it is not exactly helping me for what I have in mind. I have a feeling that there is a way of ensuring the first condition with using entry's "validate". Any ideas? Thank you for your input! Sano

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  • regex to get current page or directory name?

    - by John Isaacks
    I am trying to get the page or last directory name from a url for example if the url is: http://www.example.com/dir/ i want it to return dir or if the passed url is http://www.example.com/page.php I want it to return page Notice I do not want the trailing slash or file extension. I tried this: $regex = "/.*\.(com|gov|org|net|mil|edu)/([a-z_\-]+).*/i"; $name = strtolower(preg_replace($regex,"$2",$url)); I ran this regex in PHP and it returned nothing. (however I tested the same regex in ActionScript and it worked!) So what am I doing wrong here, how do I get what I want? Thanks!!!

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  • strip extra quotes from html using uTidy

    - by mridang
    Hi, Could anyone tell me how I could remove extra-quotes from my HTML using uTidy. The malformed HTML tag looks like this: <th align="left""> <input type="submit" style="font-weight: bold;" value="Go"> </th> I would also like to remove some empty attributes in the HTML that looks like this (notice the alt tag): <img src="http://static.foobar.org/images/blank.gif" width="1" height="1" alt="" border="0"> Thank you.

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  • Internet Explorer shows error when downloading excel file in SSL site

    - by Billy
    I get the following error when downloading excel file in SSL site: Internet Explorer cannot download xxxx.aspx from mysite.com. Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. After googling, I suspect that it's the problem of the response header. I try the solution in this page and set the header: http://trac.edgewall.org/ticket/1020 HttpContext.Current.Response.AddHeader("Pragma", "no-cache"); HttpContext.Current.Response.CacheControl = "private"; But it doesn't work. Any suggestions?

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  • Enabling Hibernate second-level cache with JPA on JBoss 4.2

    - by Peter Hilton
    What are the steps required to enable Hibernate's second-level cache, when using the Java Persistence API (annotated entities)? How do I check that it's working? I'm using JBoss 4.2.2.GA. From the Hibernate documentation, it seems that I need to enable the cache and specify a cache provider in persistence.xml, like: <property name="hibernate.cache.use_second_level_cache" value="true" /> <property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider" /> What else is required? Do I need to add @Cache annotations to my JPA entities? How can I tell if the cache is working? I have tried accessing cache statistics after running a Query, but Statistics.getSecondLevelCacheStatistics returns null, perhaps because I don't know what 'region' name to use.

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  • Parsing SOAP response using libxml in Ruby

    - by abhishektiwari
    I am trying to parse following SOAP response coming from Savon SOAP api <?xml version='1.0' encoding='UTF-8'?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"> <soapenv:Body> <ns:getConnectionResponse xmlns:ns="http://webservice.jchem.chemaxon"> <ns:return> &lt;ConnectionHandlerId>connectionHandlerID-283854719&lt;/ConnectionHandlerId> </ns:return> </ns:getConnectionResponse> </soapenv:Body> </soapenv:Envelope> I am trying to use libxml-ruby without any success. Basically I want to extract anything inside tag and the connectionHandlerID value.

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  • jQuery CSS Custom Flyout Menu Styling Issue

    - by aherrick
    I'm close to nailing this flyout menu I have been working on, just have a couple of current pain points. I'm trying to get left/right padding on my submenu items, as you can see I am not quite there. Also when the first submenu is displayed, I want to create a bit of a gap between the first row of list items and the child. Below is my current code and a screen shot displaying what I want. Based on my current CSS, any thoughts on how to get this done in a clean way? <!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" /> <title></title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> <script type="text/javascript"> function mainmenu() { $("#nav ul").css({ display: "none" }); // Opera Fix $("#nav li").hover(function() { $(this).find('ul:first').css({ visibility: "visible", display: "none" }).show(400); }, function() { $(this).find('ul:first').css({ visibility: "hidden" }); }); } $(document).ready(function() { mainmenu(); }); </script> <style type="text/css"> * { padding: 0px; margin: 0px; } body { font-size: 0.85em; font-family: Verdana, Arial, Helvetica, sans-serif; } #nav, #nav ul { margin: 0; padding: 0; list-style-type: none; list-style-position: outside; position: relative; } #nav a { display: block; padding: 4px 0px 4px 0px; color: #dfca90; text-decoration: none; background-color: #ECE9D8; font-size: 9px; font-weight: bold; font: bold 15px Palatino, 'Palatino Linotype' , Georgia, serif; } #nav > li > a { font-size: 16px; font-variant: small-caps; border-right: 1px solid #dfca90; padding-right: 10px; padding-left: 10px; padding-bottom: 6px; padding-top: 6px; background-color: #fff; color: #dfca90; } #nav li ul li a:hover { color: #999; } #nav li { float: left; position: relative; } #nav ul { position: absolute; display: none; width: 170px; border: 2px solid #dfca90; } #nav ul li { } #nav li ul a { width: 170px; height: auto; float: left; } #nav ul ul { top: -2px; } #nav li ul ul { left: 170px; background-color: #ECE9D8; } #nav li:hover ul ul, #nav li:hover ul ul ul, #nav li:hover ul ul ul ul { display: none; } #nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li li li li:hover ul { display: block; } </style> </head> <body> <ul id="nav"> <li><a href="#">1 HTML</a></li> <li><a href="#">2 CSS</a></li> <li><a href="#">3 Javascript </a> <ul> <li><a href="#">3.1 jQuery</a> <ul> <li><a href="#">3.1.1 Download</a> </li> <li><a href="#">3.1.2 Tutorial</a> </li> </ul> </li> <li><a href="#">3.2 Mootools</a></li> <li><a href="#">3.3 Prototype</a></li> </ul> </li> </ul> </body> </html>

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  • Spring security access with multiple roles

    - by Evgeny Makarov
    I want to define access for some pages for user who has one of following roles (ROLE1 or ROLE2) I'm trying to configure this in my spring security xml file as following: <security:http entry-point-ref="restAuthenticationEntryPoint" access-decision-manager-ref="accessDecisionManager" xmlns="http://www.springframework.org/schema/security" use-expressions="true"> <!-- skipped configuration --> <security:intercept-url pattern="/rest/api/myUrl*" access="hasRole('ROLE1') or hasRole('ROLE2')" /> <!-- skipped configuration --> </security:http> I've tried various ways like: access="hasRole('ROLE1, ROLE2')" access="hasRole('ROLE1', 'ROLE2')" access="hasAnyRole('[ROLE1', 'ROLE2]')" etc but nothing seems to be working. I'm keep getting exception java.lang.IllegalArgumentException: Unsupported configuration attributes: or java.lang.IllegalArgumentException: Failed to parse expression 'hasAnyRole(['ROLE1', 'ROLE2'])' how should it be configured? Thanks

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  • Svn - get the list of all repos on a server so I can svnsync

    - by egarcia
    I'm attempting to create a backup of my client's existing svn repositories, which is publicly available over http. If possible, I'd like to be able to make new repositories automatically, from any computer, without having to give console access to the server to external parties (i.e. the users could do a ls on my svn repo dir) My problem is that I need to know the list of svn repositories on the server - it isn't a fixed list, since the user will add new repositories over time. I'm able to list the repositories on an html page via Apache's mod_dav_svn module, using the SVNListParentPath On directive. I got this page: http://svn.ohwr.org/ My question is: what is the easiest way to obtain a usable list of such repositories? I'll need to parse that list in order to make syncs, probably using shell commands. Must I parse the HTML with shell commands, or is there a better way to get that list?

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  • Unexpected JAXB error

    - by Mark Lewis
    Hello, From the documentation it's clear I need to use the following to get a simple unmarshalling to occur from my XML file/schema: JAXBContext jc = JAXBContext.newInstance("PackageName"); where PackageName is my package name. I've looked on google for a bit to no avail, to find out why I'm then getting this runtime error: Line:Col[2:142]:cvc-elt.1: Cannot find the declaration of element 'myconfig'. Line:Col[2:142]:unexpected element (uri:"http://www.w3.org", local:"myconfig"). Expected elements are <{}myconfig> Caught UnmarshalException This occurs at the top of all my class files, including the ones the XJC plugin for eclipse created for me (which I then moved out of PackageName.PackageName which it automatically created): package PackageName; so why is this error occurring?

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  • ServiceTracker in OSGi r4.1

    - by Schildmeijer
    Im using a org.osgi.util.tracker.ServiceTracker (PrintableServiceTracker implements ServiceTrackerCustomizer and simply prints when a new service is added). Filter filter = bc.createFilter("(objectClass=se.enea.print.Printable)"); tracker = new ServiceTracker(bc, filter, new PrintableServiceTracker(bc)); I've read about "pseudo registration" in the new ebook "OSGi in action" and I wonder if I have to do pseudo registration explicitly or if the framwork handles this automatically? (Will already installed Printable services be caught by the ServiceTracker. will ServiceTracker.addingService(ServiceReference) be called for each of the pre installed Printable services)

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  • What is the correct syntax for using HTML builder with mixed content in Groovy 1.7?

    - by stian
    On the Groovy example page there is an example of how to use Groovy HTML builder with mixed content: p [ "This is some", b"mixed", "text. For more see the", ahref:'http://groovy.codehaus.org' ["Groovy"], "project" ] This is however not working for me, I get an error message like: expecting ']', found 'mixed' @ line 33, column 23. b"mixed", ^ 1 error The Groovy example page states that: [Note: the syntax in some of these examples is slightly out-dated. See chapter 8 of GINA in the mean-time until these examples are updated.] My suspicion therefore is that the syntax of the HTML builder has changed, however I don't have the book so I cannot check and I cannot seem to find any relevant example of this working online. Does anyone know how the syntax is supposed to be in Groovy 1.7 and have got this working?

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  • wxruby - Set max length of ComboBox

    - by Jonas Söderström
    Is is possible to set the Max length of a ComboBox in wxruby? I have looked in the documentation but find nothing http://wxruby.rubyforge.org/doc/combobox.html But if i do my_combobox.methods.sort I get set_max_size and set_min_size in the list. But When I call it my_combobox.set_max_length(100) I only get undefined method 'set_max_length' for #<Wx::ComboBox:0x4d4a914> I've also tried to call it as a private method def my_combobox.max(i) set_max_length(i) end my_combobox.max(100) But with the same result. The issue I want to avoid is that if somebody pastes 6000+ characters in my Combobox the text becomes white.

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  • Microsft Jet oledb connection to excel loses formulae

    - by Saubhagya
    I have a dataset and I write it's values to an excel file using Microsoft Jet 4.0 Oledb provider. I want to put hyperlinks into the excel, for this I write "=HYPERLINK("http://www.abc.org/x.pdf")" in DS and then write it to excel. But when the excel is opened it prefixes a ' (quote/apostrophe) before the formula and there it comes as a text, not link. Can you help me removing that quote so that my excel file has hyperlinks instead of that as text? I need to use Microsoft Jet 4.0 provider (not excel component) as the client machine may or may not have MS-Excel installed on his machine.

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  • HTML/CSS - Website Help.

    - by gabeaudick
    I'm trying to build my first website from scratch. I mocked up the design in Photoshop, and have been trying to convert into code for a few hours. But I haven't got far. In fact, I'm stuck on the header's navigation bar. It looks right, but it doesn't work. I'm using an unordered-inline list, and trying to link different rectangles in the header. I can't click on anything in the header, though. The code for the html and css files, and a mockup of the header, are below. Any advice on why the header bar isn't working would be much appreciated. Here's a link to the image: http://rookery9.aviary.com.s3.amazonaws.com/3961000/3961027_eb89_625x625.jpg *Ideally, you would be able to click on either "". home.html: <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <!-- Title --> <title>I am Gabe Audick.</title> <!-- Meta --> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="Author" content="Gabe Audick" /> <meta name="Copyright" content="Gabe Audick" /> <!-- Stylesheets --> <link href="style.css" media="screen" rel="stylesheet" type="text/css" /> <!-- RSS --> <link rel="alternate" type="application/rss+xml" title="gabeaudick RSS" href="http://feeds.feedburner.com/gabeaudick" /> </head> <body> <!-- Navigation Bar --> <div id="wrap"> <div id="header"> <ul> <li><a href="#">Previous</a></li> <li><a href="#">Home</a></li> <li><a href="#">Next</a></li> </ul> </div> </div> <!-- END --> <!-- Google Analytics --> <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-5899101-4']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); </script> <!-- End of Google Analytics --> </body> </html> style.css: * { margin: 0; padding: 0; } body { background-color: #fff; color: #000; font-size: 14px; font-family: 'Century Gothic', Helvetica, sans-serif; position: relative; } #wrap { background-color: #000; color: #fbead; height: 26px; width: 100%; } #header { background: url(./images/home.gif) center no-repeat #000; height: 26px; } #header ul li{ float:left; list-style-type:none; margin-right:12px; text-indent:-9999px; } #header li a:link, #header li a:visited{ outline:none; display:block; height:26px; text-indent:-9999px; }

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