June 2011 - Dillo-dev - lists.mailman3.com

Time to celebrate!
by jcid＠dillo.org June 17, 2011

June 17, 2011

Hi, This means a lot to us: http://fltk.org/articles.php?L1086 !! :-) !! -- Cheers Jorge.-

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Development schedule for version 1.3
by rf.opensource＠gmail.com June 15, 2011

June 15, 2011

Hi guys, It seems that FLTK will release their final 1.3 version next week on June 8th. Are we waiting on that to release our own dillo 1.3? The reason I'm asking is that as you know I'm preparing an installable Mac OS package, which I hope to go on dillo's download page (and hopefully introduce dillo to many non-developer users). So I'd like to know if we are just waiting on that final release of FLTK 1.3, or whether there are still open bugs remaining for our next release? Thanks, Reza

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Update on segfault issues
by mr_semantics＠hotmail.com June 11, 2011

June 11, 2011

I have been playing around with the 1.3 port on my "broken" machine. Still no luck with sorting out the segfault. I have spent a fair amount of time in gdb and valgrind trying to track down the source of the trouble, but no luck. The best I can do when compiling with gcc is to use -O0, which produces an executable which does not segfault. I have tried gcc 4.4, 4.5, and 4.6, to no avail. I have wondered if it was something to do with my architecture; I am running an AMD E-350 fusion processor in my machine. In light of this, I tried using the appropriate -march setting with gcc 4.6, but again no luck. The only bright side of all of this was that I decided to compile with Clang, and it built nicely with only one warning (which I could not see the reason for): chain.c:189:50: warning: too many arguments in call to 'Chain_debug_msg' Chain_debug_msg(FuncStr, Op, Branch, Dir, Info); ~~~~~~~~~~~~~~~ ^ I will keep playing with this, to see if I can figure out the problem with gcc, but my hope is fading with regards to finding a solution. Rob

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Table::addCell() leak
by corvid＠lavabit.com June 9, 2011

June 9, 2011

http://starurchin.org/dillo/valgrind/10ca58f617a0693638facdb40bcf319af1bdfc… has a leak at dw/table.cc:323, and I found a way to trigger it: <table border=2> <tr><td>first<td rowspan=2>tall<td>third <tr><td colspan=2>wide<td>last </table> Jorge, you might remember a little something about tables. Can we simply check children->get() before putting anything there, or do we have to fix things somewhere if part of a span is stolen away?

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Ignore a command line option (for Mac OS bundles)
by rf.opensource＠gmail.com June 5, 2011

June 5, 2011

On Sun, Jun 5, 2011 at 11:31 AM, corvid <corvid(a)lavabit.com> wrote: > > I could use a bit of advice though. In my preliminary experiments, > > I'm having a bit of problem with the dpi related dynamic libraries. > > I can get dillo to run on another machine with libpng, libjpeg and > > zlib copied over to /usr/local/lib, but none of the plugins work. I > > have copied the usr/local/lib/dillo folder too, and also > > /usr/local/bin/dpid and /usr/local/bin/dpic, but still the plugins > > do not work in the target system. Any files I forgot to copy over? > > How about dpidrc? > > > Thanks, yes it works. I had forgotten the following: /usr/local/etc/dillo/dillorc /usr/local/etc/dillo/dpidrc /usr/local/etc/dillo/ Now most of the plugins seem to work, at least bookmarks work fine. There is still a problem remaining though. In the target machine, I cannot open sites that require SSL (for example www.gmail.com, mail.yahoo.com) I'm not sure why it happens. Is there any library that helps in SSL connections that I forgot copying over? BTW, I tried following Makefile to see what happens for make install, but since it is autogenerated by autoconf it's a bit too complex to follow manually :(

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Ignore a command line option (for Mac OS bundles)
by rf.opensource＠gmail.com June 5, 2011

June 5, 2011

I'm trying to create a Mac OS executable bundle for dillo. This will be immensely helpful in increasing the reach of dillo to Mac users, as majority of them shudder and run away when they hear they have to download, (compile and) install the following: 1. Xcode 3 (which is a 4GB download!) 2. FLTK 3. libjpeg 4. libpng 5. zlib I've so far managed to cross compile both 32 bit and 64 bit binaries of dillo (same with fltk, libjpeg, libpng, zlib), create a bundle (which fixes the icon problem) and almost get it to run on another machine. I have a small problem however and can use some help. It turns out Mac OS passes a command line argument to applications when it runs them as a bundle. The command line option is something like -psn_0_25790615, where the latter part of the number is different in each run. Dillo of course freaks out when it sees it, prints out the help text (correct usage and whatnot) and exits. Can you please add a case to the command line parsing code to ignore an option if it includes text "-psn_0"? I could give it a shot but chances are I'll break something else. Something like this should work: if (string(argv[1]).find("-psn_") == 0) { _MSG("Apparently a mac bundle", 0); _MSG(argv[1], 0); //ignore this option and move to the next; (Code sample from https://svn.janelia.org/penglab/projects/v3d/trunk/v3d_main/v3d/v3d_command…) Thanks, Reza

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Invitation to connect on LinkedIn
by sdliyong＠gmail.com June 2, 2011

June 2, 2011

LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Yong Yong Li platform software engineer at Hewlett-Packard China Confirm that you know Yong Li https://www.linkedin.com/e/m1sm8i-gofifhm7-1e/isd/2018522004/2K69vPKA/ -- (c) 2011, LinkedIn Corporation

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Connection problems on Mac OS X 10.6.7
by jcid＠dillo.org June 2, 2011

June 2, 2011

On Wed, Jun 01, 2011 at 03:47:32PM +0000, corvid wrote: > > How do you think that bug eluded detection for so many years? > I was very surprised by it all... I) Very special conditions are necessary to trigger the bug, so the code works for most cases, hiding the bug (e.g. the test case in fltk works). It is a race condition where you need: - Multiple file descriptors being watched. - Some of them being closed while others remain in activity. - The closing being in such a way that the fd with the higher number is closed before the others. and on top of it there's also a semantic problem, which is very hard to spot while reviewing the code: [in remove_fd():] ... if (n == _maxfd) _maxfd--; ... It looks quite correct, but a callback may be pending in the queue, and if so, it will not be honoured. -- Cheers Jorge.-

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Connection problems on Mac OS X 10.6.7
by rf.opensource＠gmail.com June 1, 2011

June 1, 2011

Hi guys, First post here, thanks for all your hard work on Dillo! I'm trying to compile and run dillo on Mac OS 10.6.7 (and report the bugs I find :D ). I followed instructions that Jorge sent me earlier, and it compiled without an error but a few warnings: $ make|grep : http.c: In function ?Http_connect_queued_sockets?: http.c:177: warning: cast from pointer to integer of different size dialog.cc: In function ?int a_Dialog_choice5(const char*, const char*, const char*, const char*, const char*, const char*)?: dialog.cc:177: warning: suggest a space before ?;? or explicit braces around empty body in ?for? statement make[2]: Nothing to be done for `all'. make[2]: Nothing to be done for `all-am'. The good news is that Dillo runs. It also seems to eventually connect to websites, which is good news too. But at least for me loading a page is a hit or miss experiment. Sometimes it waits for a long time (maybe 2-3 minutes) and couldn't connect, as if there was a DNS problem, other times it loads the same page easily in a few seconds. Here's the output from the terminal, after trying to connect to yahoo.com site unsuccessfully (waiting for a long time): $ src/dillo paths: creating directory /Users/farivar2/.dillo. paths: Cannot open file '/Users/farivar2/.dillo/dillorc' paths: Using /usr/local/etc/dillo/dillorc paths: Cannot open file '/Users/farivar2/.dillo/keysrc' paths: Using /usr/local/etc/dillo/keysrc dillo_dns_init: Here we go! (threaded) Cookies: Created file: /Users/farivar2/.dillo/cookiesrc Disabling cookies. Nav_open_url: new url='about:splash' Nav_open_url: new url='http://www.yahoo.com' Dns_server [0]: www.yahoo.com is 209.191.122.70 69.147.125.65 67.195.160.76 Connecting to 209.191.122.70 and it almost hangs here. During this time the CPU utilization hovers around 134% (on a dual core machine), with 3 threads and 48MB of memory usage. Is this behavior expected? Perhaps it's related to the warnings above? My guess is that it's either a DNS problem or an HTTP connection problem, resulting into a time-out case. P.S. Sometimes it seems if I open another tab and enter another address it will help the first tab to load, but I can't get it to consistently act like that. Other times, it seems a tab can get stuck waiting for the host and can never load the page. It also seems adding http:// to the beggining of addresses help some times, but not consistently. P.S.2 I checked my network connection with my other browser (chrome) and it has no problem connecting the mentioned websites. P.S.3 Are there reference rendering snapshots available? The Yahoo's web site and even Google's both render in a strange way (similar to the way links2 renders them). In fact the only website that I could get to render correctly is dillo.org (when it opens, other times it just decides not to open even after 5 minutes of waiting). P.S.4 Jorge's instructions to compile dillo-1.3 for Mac OS X are as follows: 1.- <install fltk-1.3-rc5 from fltk.org> 2.- <install auto* tools, X devel, C/C++, jpeg, png, etc> 3.- <install mercurial> 4.- $ hg clone http://hg.dillo.org/dillo_port1.3 5.- $ cd dillo_port1.3 6.- $ ./autogen.sh 7.- $ CFLAGS="-g -O0" CXXFLAGS="-g -O0" ./configure --enable-ssl 8.- $ make|grep : 9.- $ sudo make install (this will install dillo, dpid, dpidc and the dpis) 10.- $ src/dillo -Reza

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A chronology of discussions on floating elements support
by rf.opensource＠gmail.com June 1, 2011

June 1, 2011

A chronology of discussions on floating elements support, (or the floating element blues!) IMHO the number one missing feature of Dillo now is support for floating elements, which makes the rendering of majority of web sites unappealing / unreadable. So I became curious to see what sort of discussions has been going on in the past regarding this issue. It appears that this has been a goal for some time, at least as far back as 2004. Interestingly no one mentioned it in between 2004 and 2008, but from 2008 there has been interest in it again. Here's a little chronology I've put together from the discussions on the mailing list. I hope it raises interest in the community to finally address this feature. Oct 1, 2004 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2004-October/002218.html Jorge mentions that bug#598 is because Dillo doesn't support floating elements. I couldn't find bug#598 in the bugtracker page. Nov 6, 2004 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2004-November/002414.html<http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-May/006415.html> Jorge makes a priority task list of remaining issues. (This is before porting to FLTK2.) Based on this list support for floating objects should be added to DwPage. There Jorge claims "This is a bit difficult, since I'm not yet able to estimate the work." April 20, 2008 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2008-April/004101.html Jorge: "Planning for CSS, floating objects and TABS.(these are important features to a nice browsing experience)". Later Enrico mentions that he plans to write a universal but small CSS parser as a separate library to fix the missing CSS issue. Jorge suggests he look at RCSS by Raph Levien. July 3, 2008 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2008-July/004652.html As part of future of dillo2, Jorge: "In the near future, I'd like to have CSS and proper floating text rendering (DIV element), plus an API as a help browser." Nobody follows it up in that thread. Oct 22, 2008 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2008-October/005274.html Johannes proposes a plan to support CSS, and in parallel to make floating objects work in dw/textblocks.cc. Jorge mentions in reply that "currently I don't know which of these two is more urgent: * floats in textblock, * DIV element. I'd say DIV." Nov 7, 2008 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2008-November/005381.html Jorge mentions that Sebastian is apparently working on floating objects support. Jan 5, 2009 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-January/005608.html Jorge: "BTW, after we merge CSS into the main branch, it seems like floating objects will be the highest priority. Dillo rendering would improve a lot by using both!" Mar 4, 2009 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-March/006122.html Jorge mentions as a future goal: "Improve rendering: especially floating objects and the already good-looking CSS." May 10, 2009 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-May/006415.html Some discussion (with no clear conclusion) on "treatment of white spaces inside text blocks" between corvid, Jorge and Johannes. Jorge mentions that it will need changes to the textblock and that it is a task for dillo 2.2. Corvid hopes Johannes fixes it, Johannes hopes someone else fixes it, and Jorge mentions that Sebastian wanted to fix it but there's no news of him and apparently he has to tackle it himself. Jorge: "I remember doing this with table rendering algorithms, and it took months, but the end result was worth the effort. If somebody here wants to help along the way, it'd be more than welcomed." June 23, 2009 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-June/006645.html Jorge: "The column layout problem is mainly a lack of implementation of floating elements in the textblock. it is one of the top priorities for the next release (if not the topmost). We'll work on it and try to fix it. We're yet to find out how much work it will be." Oct 14, 2009 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-October/006918.html Jorge: "Right now, I see these ones very close: 1.Rendering of floating objects.(very visible for users)" Dec 11, 2009 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2009-December/007077.html TIm and Johannes give it s shot, but the issue remains unfixed. Johannes: "The real problem is what to do with those values. We need a way to render floating elements in dw/*" Oct 13, 2010 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2010-October/007760.html Jorge mentions: "Personally I believe the collapsing model and its baroque combinations are seldom used in the Web. Most sites are structured around floating DIVs these days,and even the last SPEC more or less recognizes the problem." Jan 26, 2011 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2011-January/008022.html Benjamin Johnson: "- Twelve years and three toolkits later, there's still no support for such basic functionality as floating elements (HTML "align=" or CSS "float:")." May 26, 2011 http://lists.auriga.wearlab.de/pipermail/dillo-dev/2011-May/008352.html Jorge mentions: "Dillo doesn't have support for "floating elements" yet. The web has become full of them because of slow rendering of tables. Well, we're supposed to work on it in the near future. For the meanwhile, you'll see weird "unrolled" pages."

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