- xwiki-users@xwiki.org - lists.xwiki.org

Re: [xwiki-users] Users not displayed
by Christian Ribeaud 11 Aug '09

11 Aug '09

Thanks a lot, Niels. Really. I got it now. But this is really cumbersome! And when using the administration panel, I always get empty panels: rights, users, groups,... (only the number of items is displayed). To me it sounds like a show-stopper and it will definitely prevent us for using XWiki. I thought that this open-source application would be in a better shape. It is a pity but we have to look for something more useful. Thanks a lot and have a nice day, christian -- Canoo - Your Solution Provider for Rich Internet Applications Christian Ribeaud Canoo Engineering AG Kirschgartenstrasse 5 CH-4051 Basel Tel: +41 61 228 94 44 Fax: +41 61 228 94 49 christian.ribeaud(a)canoo.com http://www.canoo.com/

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[xwiki-users] Introducing the equation rendering component and the equation macro
by Sergiu Dumitriu 11 Aug '09

11 Aug '09

Hello Community, I have committed today the first implementation of a new XWiki feature: rendering mathematical equations into images. It is available as a standalone component, and as a syntax 2.0 macro. About the functionality. Equations are written in the TeX/LaTeX syntax, which is pretty simple, and seems to be the syntax of choice for mathematical equations in other wikis, too. The macro can distinguish between inline and block equations and render them accordingly. The output can be either PNG (the default one), GIF or JPEG. While PNG is definitely the best, I kept the other two in case somebody really wants to use ancient browsers that only understand GIF. Q: Should I leave just PNG as the output format? Another feature is that the font size can be specified, in order to render larger or smaller equations. All the font size commands from LaTeX (from \tiny to \Huge) have an equivalent. I renamed them to a more easy to understand name (also because the configuration is case insensitive, so there's no difference between large and LARGE). By default images are generated so that the font looks relatively OK with the default XWiki skin on a 72 or 96 DPI display. They might look disproportionate with a different DPI, or with a different default font size. Q: Is the default DPI setting OK? Second, a few technical details: The standalone component is located in platform/core/xwiki-equation-rendering. I don't know if the name is the best (Vincent complained). On one hand, this describes better what the component does: it renders equations. On the other hand, it might cause confusion with the xwiki-rendering system. The component currently has three implementations: - a native one, which relies on the latex system being present. It gives the best results, from a graphical point of view, but requires the presence of external programs, and involves a slight overhead for starting new processes and for working with the disk. Currently it might have some security problems, I'll have to see if opening input and output files from TeX is a problem, or how to disable this. Any help from someone who know more about TeX? Q: Does anybody know of any security issues with running latex, dvips or convert? Especially with the \openin and \openout commands? - one which uses MathTran as a remote service through HTTP requests. It gives results as good as the native one, enhanced with some metadata, and depending on the configuration of the server, it might have better performance than the native one. The disadvantage is that it relies heavily on a remote server. Note that MathTran is free software, and can be installed locally on the same or a neighboring server. Oh, another minor problem is that it uses a variant of the TeX syntax, not LaTeX. - one which uses SnuggleTeX and JEuclid to transform LaTeX into MathML, and then render it into images. The results are not as eye-pleasing as those obtained from LaTeX, but it is a self-contained solution, with no external dependencies. SnuggleTeX uses the liberal 3-clause BSD license, JEuclid uses the Apache v2 license, so both can be deployed. Together, they weight in at 730k, so it's not a big impact. The other two implementations are not contaminated by the licenses of the underlying system, so there's no license conflict. Q: Should either one be removed? Q: Do you know of any other (better) alternative? By default the native renderer is used, since it gives the best results and doesn't depend on an external service. SnuggleTeX is configured as a backup (safe) renderer which kicks in when the default one isn't working (missing tex subsystem, or communication error with the remote server). Q: Is this setup OK as the default one? (native by default, snuggletex as fallback). The generated images are stored in a cache (using the cache component), for improved performance. This new cache might increase the memory requirements, but fortunately it is easy to configure. The rendering macro is located in platform/core/xwiki-rendering/xwiki-renderig-macros/xwiki-rendering-macro-equation, and the macro can be used with {{equation}}\sum_{i=0}^{\infty}{{/equation}}. Q: Is the macro name appropriate? Do you know of a better one? Future work: - make sure that there are no security issues with the Native backend - add support for MathML display for the clients that understand it - improve the alignment of images (especially for the Native backend), as right now they are a bit raised above the text baseline Many thanks to Guillaume Legris who provided the starting point for this component. -- Sergiu Dumitriu http://purl.org/net/sergiu/

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[xwiki-users] [Proposal] Wiki 2.0 Menu
by Ecaterina Valica 11 Aug '09

11 Aug '09

Hi, Please give feedback on the menu iteration. You can view the mockups at http://incubator.myxwiki.org/xwiki/bin/view/Improvements/Skin20Menu 1. We need to decide the way we handle the actions we are able to do (depending on the rights we have): enable/disable them or hide them. 2. You can select to have an simple or advanced menu (View and Edit submenus affected) Thanks, Caty

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Re: [xwiki-users] [xwiki-devs] Introducing the equation rendering component and the equation macro
by Sergiu Dumitriu 11 Aug '09

11 Aug '09

Paul Libbrecht wrote: > I would suggest xwiki-formula-rendering > > All equations are formulæ, all formulæ are not equations! > Sergiu, is there a URL I can see this in more details? > Do you tackle baseline? (with javascript probably). No, it is in the Future Work list. > > > Le 10-août-09 à 18:27, Vincent Massol a écrit : > >> I haven't read the mail yet, I'm just reacting to the name. >> >> Equations means there is an equal sign (see http://en.wikipedia. >> org/wiki/Equation). >> I'd prefer formula which is more generic. -- Sergiu Dumitriu http://purl.org/net/sergiu/

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[xwiki-users] Where to download the documents of xwiki?
by flyisland 11 Aug '09

11 Aug '09

Hi all, I have just started my journey of xwiki (installed the standalone version of windows), and want to find more documents of xwiki. I can read the documents online on xwiki.org, but I prefer to read it offline and can not find the documents download links. Where to download the documents of xwiki? -- ----------------------------------------------------------------------------------------- 空中的一小块陆地 E-mail : fly.island(a)gmail.com Blog : http://flyisland.blogbus.com/ Twitter : http://twitter.com/flyisland -----------------------------------------------------------------------------------------

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[xwiki-users] Xwiki 1.8 WAR file?
by Travis Riggs 11 Aug '09

11 Aug '09

Is there any way that I could download the Xwiki WAR file of version 1.8? I had a server crash and my database backup didn't work. I was able to export all of the pages in my wiki as .xar files, but when I try to import some of them, I get messages that say there are no documents in the .xar files. I think this is because my new installation is 2.0, instead of 1.8. I tried 1.9, and it helped a little. I could import a few more of the pages, but there are still a couple that I cannot. I would try to use the files from the server, but it is officially toast now. Any help would be greatly appreciated. Thanks, travis

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[xwiki-users] upgrading wiki farm?
by Kelly Lakas 10 Aug '09

10 Aug '09

Hi - I have XEM 1.7.1/XE 2.0 milestone 1. I see that the Main.AllDocs issue is resolved with XE 2.0 milestone 2. Do I need to upgrade to XE 2.0 milestone 2 and then convert again to XEM 1.7.2, or can I just install XEM 1.7.2 war and that will fix the issue? Also, if I do upgrade to xe and then convert again, will I lose all the virtual wiki's I've created? Any help would be great, thanks. Kelly Kelly Lakas Project Manager next wave logistics inc. 28377 davis parkway, suite 607a warrenville, il 60555 ________________________ [office] 847.798.8897 [mobile] 312.307.2079 [web] www.nwlinc.com <http://www.nwlinc.com>

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[xwiki-users] XWiki Standalone installation on Vista
by Meilin Wong 10 Aug '09

10 Aug '09

Hi all, I installed XWiki using the standalone install on my Vista64 machine and it looks like the XWiki server starts up fine (using the start_xwiki.bat batch file). However when I try to access http://localhost:8080 with my browser, I keep getting errors as if there is no web server or wiki running at all. I accepted all the defaults when installing except that I installed it under "C:\XWiki Enterprise" and I ran the installer as administrator. (I'm not sure if I need Java 5. I have Java 6, Update 10.) The error I'm getting in my browser (Firefox 3.0.1) is "Page Load Error" Network Timeout The server at www.localhost.com is taking too long to respond. The requested site did not respond to a connection request and the browser has stopped waiting for a reply. * Could the server be experiencing high demand or a temporary outage? Try again later. * Are you unable to browse other sites? Check the computer's network connection. * Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing. * Still having trouble? Consult your network administrator or Internet provider for assistance. Has anyone had this kind of error before or have ideas on what I'm missing? Any advice would be greatly appreciated. Thanks! - Meilin

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[xwiki-users] [Fwd: [people] CFP: ISWC 2009 Workshop on Collaborative Construction, Management and Linking of Structured Knowledge]
by [Ricardo Rodriguez] Your EPEC Network ICT Team 08 Aug '09

08 Aug '09

Sorry for being late with this message! The deadline for paper submission is 10 August 2009, but only now I've regained access to the nepomuk-kde list. Greetings, Ricardo -- Ricardo Rodríguez Your EPEC Network ICT Team

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[xwiki-users] Questions on managing user workspaces.
by deaddecoy＠gmail.com 06 Aug '09

06 Aug '09

Hi, I recently installed xwiki workspaces on my ubuntu box and I'm having a few issues. I created two users: user_1 and user_2 whom I would like to be able to view each other's workspaces. For each user, I create a workspace and then click 'Manage Users' to allow others to read/author in my space. On clicking 'Manage Users' I get the following error in console: [ERROR] Left side ($request.action) of '==' operation has null value. If a reference, it may not be in the context. Operation not possible. Space_user_1.WebPreferences [line 27, column 22] [ERROR] Left side ($request.action) of '==' operation has null value. If a reference, it may not be in the context. Operation not possible. Space_user_1.WebPreferences [line 30, column 23] I then add user_2 to user_1's read list. The results are that user_2 can see updates and even read user_1's pages, but under 'My Dashboard'->'all my spaces' user_2 is not listed as a member of user_1's page. I'd like to know if I'm missing something or if users are allowed to share workspaces like this and how. Also, a bit of a side question, but where can I find out more about using xwiki to setup structured data? Thanks -Nathan

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