- Dillo-dev - lists.mailman3.com

/. crap
by Andrew A. Gill Oct. 17, 2003

Oct. 17, 2003

[I'm not subscribed to the list, but I do read it in the archives.] Date: Fri, 17 Oct 2003 11:44:33 -0400 From: Jamie McCarthy <jamie(a)mccarthy.vg> Subject: Re: [secret-list] /. hubris superluser(a)frontiernet.net (Andrew A. Gill) writes: > For a while, users of Dillo (<http://www.dillo.org>) have been > having trouble reading Slashdot (<http://slashdot.org>). Looks > like a misplaced </td></tr> is to blame. Anybody want to > pester Cowboy Neal? Well, this is one of the fun things about working on a public project: I get bug reports through more than just the usual channels. Hi, I'm Jamie, I'm the one who wrote the bug, and I'm the one who will get around to fixing it... eventually. There's no immediately simple way to fix the HTML. What's going on is actually kind of interesting. Slashdot runs on Slash, which is a publicly available project used on hundreds of other websites. The look of Slashdot and its front-page table layout is fairly different under the hood from the layout of "Slashcode," which is the default theme that we ship. These differences are mostly encoded in template files, which are data chunks arranged mostly hierarchically that can be selected in all kinds of interesting ways. That means, sadly, that changing one template has many repercussions. Obviously I know where the buggy HTML output is; that's what that commented-out  tag is doing there. But I have to think about what that change would do not just to Slashdot, but to the Slashcode theme generically, to the sites that use that theme as-is, to the dozen other sites my company runs that have modified that theme, to the who-knows how many other sites that strangers run that have modified that theme, to "light mode," to the three or four separate scripts that use the template, I have to test with the pre-rendering caching, etc., etc. Slashdot's HTML layout has always been broken. Early this year I took it upon myself to fix it and quickly realized that there was no good way to fix just Slashdot, without either breaking Slashcode as well or introducing a large number of copy-and-pasted code as a difference between the two that would have to be maintained. What I did instead was write code for the Template Toolkit that lets these dozens of templates build the HTML tables dynamically. As new <TR> and <TD> tags are laid out, variables are incremented and decremented. By the time we get to the bottom of the page, the code knows how many <TD>s and <TR>s it's got to close, and how, in order to make the HTML all nice and pristine. That way, Slashdot.org and Slashcode.com can have wholly different columnar layouts and the low-level templates don't have to know about any of it. The CPU overhead is minimal, and overall it works great. Except there's one bug. It doesn't keep proper track of the tables it's building. It dumps errors in the log so I know about where it is. But it's difficult to narrow down. In my defense, it was broken before I wrote this code, and while it's still broken now, it's broken *less*. But it's broken *differently* and of course there is one browser that (unlike every other browser ever written) isn't smart enough to handle malformed table tags. <http://www.dillo.org/> This is the part where I rhetorically ask why anyone would write a web browser from scratch, the goal of which is to render 100% syntactically correct webpages really really fast. Are there not enough existing web browsers whose goals are to render pages really really fast? Is it perhaps not widely known that there exists, somewhere on the web, HTML code which just might not be 100% exactly correct? Is it smart to build a nitro-burning funny car dragster to carry your groceries and then complain to mailing lists about the potholes on Main Street? When version 0.7.2 of the funny car handled the potholes just fine, but 0.7.3 explodes on contact, should its designers necessarily be focused entirely on the potholes? And should anyone be surprised that writing a web browser is hard? If I could find a way to ask those questions without sounding like I was shifting the blame off my own fool self, I would. It's one of those things that is probably a nice easy single day of work. But I can't remember the last time I actually had a whole day to work on something. Our new load balancer is choking our webheads with unACK'd SYN's and I'm not sure whose fault it is. (And of course the new load balancer is named "pound," only the most common word in the English language, so good luck Googling for anyone else with the same problems.) Our new sites being launched are extending the code in ways it wasn't built for and we're having to scramble. DB replication on one of those new sites went down this morning, and while we built some kickass code to failover to the master, we hadn't had time to get that running yet. Oh, and either my ISP or my home router/gateway is flaky, so I keep falling off the internet. And of course, the day after I fix the HTML 3.2 table layout bug, I am quite certain my boss will email me to say it's finally time to start working on the switch to XHTML and CSS, which we've been planning for a year and just haven't had time for. So yes, I'd love to fix your bug. I don't like emitting broken HTML code either. I'm a big fan of adhering to standards, and I'm a big fan of not having my code embarrass me in public. I hate feeling like a jackass. But I have other things to worry about, and you have other browsers to choose from that render Slashdot just fine. Meanwhile, your bug sits right here, at Priority 5, where it's sat since we first diagnosed it in April: https://sourceforge.net/tracker/?func=detail&aid=719813&group_id=4421&atid=… -- Jamie McCarthy http://mccarthy.vg/ jamie(a)mccarthy.vg Date: Fri, 17 Oct 2003 12:50:48 -0400 From: Jamie McCarthy <jamie(a)mccarthy.vg> Subject: Re: [secret-list] /. hubris superluser(a)frontiernet.net (Andrew A. Gill) writes: > > Well, this is one of the fun things about working on a public > > project: I get bug reports through more than just the usual > > channels. Hi, I'm Jamie, I'm the one who wrote the bug, and > > I'm the one who will get around to fixing it... eventually. > > Do you mind if I forward this message to the Dillo people? If you do, mention to them that I'm not picking on them. This bug is my fault and I'll fix it. I wish them luck and I'm glad they're doing what they're doing (anyone writing GPL code is OK in my book). It's just that I won't fix it until it gets to the top of my priority list, fact of life, and there's a lot of other things up there... :( A workaround meanwhile is to try light mode, which you can get to past the black window with: http://slashdot.org/index.pl?light=1 http://slashdot.org/users.pl?op=edithome&light=1 and then check the "Light" box, and Save to make that your pref. -- Jamie McCarthy http://mccarthy.vg/ jamie(a)mccarthy.vg

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FLTK
by Jorge Arellano Cid Oct. 17, 2003

Oct. 17, 2003

On Fri, 3 Oct 2003, David Martin wrote: > Jorge, > > I would like to quickly comment on the todo list. > > [Snip] > > *Future Goals* (these may change in the future) > Port dillo to GTK+2.0 > > [/Snip] > > IMHO considering Dillo's concentration on speed and stability, it seems > like it would be more appropriate to port the future Dillo to fltk not > fat bloated GTK2.0. > > I would expect that a staticly compiled Dillo-fltk binary would be > considerably smaller then a dynamically compiled Dillo-GTK2 binary. > > > Food For Thought. The FLTK idea is certainly an insteresting issue to analize. The porting task would be far from simple (if possible at all). Dillo does not only uses GTK+ for the user interface but for HTML rendering. Dillo has its own widget system (Dw), that's embedded inside GTK+ widgets, and that at its turn can also embedd GTK+ widgets again. This is the core of the porting problem. The main reason for porting dillo to GTK+2 (instead of sticking to 1.2.10) is Unicode support (explained in the [Project Notes] link). And yes, I've been somewhat scared by the size of GTK+2. For instance in Slackware it jumps from 4Mb to 17Mb! Now, considering that FLTK has Unicode support, gathering more information becomes an interesting thing to do. I don't know FLTK :(, but here is a list with some preliminary concerns (AFAIK): * Does it provide C bindings, or is for C++ only? * Does it have a table widget or similar to GTK+'s layout? * Can it be extended with Dw in the way stated above? * Unicode and antialiasing support status? Please don't get me wrong. This email is just a RFC to make a more informed decision on the issue. The current plan is to go with GTK+2, but if this path shows better, things can change. This is also an RFC for information on GTK+2 (speed, size, linkings etc). Please back your opinions with links, docs, facts or with whatever helps better to understand the point. Maybe a single email can show there's no way to do it, or maybe not! Cheers Jorge.-

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PLEASE COME TO MY AID
by MR NZANGA JOSEPH MOBUTU Oct. 16, 2003

Oct. 16, 2003

FROM:Mr. Nzanga Joseph Mobutu ALTERNATIVE E-MAIL:nzanga_nzanga@tiscali.co.uk Dear Friend, I am the first son of the late Mobutu Sese Seko, the former President of the Congo Republic. I am presently under protective custody in Nigeria as a political refugee. I got your contact during my search for a stranger that can cooperate with me in this mutual transaction. I want you to note that this business will benefit both of us. However, you must confirm your ability to handle this because it involves a large amount of money. The money US$50 million US DOLLARS (Fifty Million United States DollarsOnly) is my share of my father's estate. I boxed and shippedthe money to a security company abroad at the peak of the war/politicalcrisis that rocked my country few years ago. Now the crisis has ended and Ineed a trustworthy person like you to proceed to the place of the securitycompany in order to clear the fund and invest on my behalf as I dont want myname to be used for now. Note that I will send to you the relevant documents that will enable you take possesion of the the fund for onward investment for our mutual benefit. All I need from you is as follows: 1. A letter of committment (duely signed) that you will keep the transaction strictly confidential. 2. Your confirmation of your abilityto handle this. 3. Your IDt or driving licence number for identification to the security company. 4. Your telephone and fax numbers for communication. 5. Your full permanent address. As soon as I get the above information from you, I will disclose to you the name and the country of the security company. I will forward your name and particulars to the securitycompany to enable them contact you accordingly. I will also send to you aLETTER OF AUTHORITY to enable you clear the fund on my behalf. Note thatthis is a very safe transaction as this money is my share of my father's estate. I am waiting for your response to enable us proceed. Regards, Mr. Nzanga Joseph Mobutu.

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PLEASE COME TO MY AID
by MR NZANGA JOSEPH MOBUTU Oct. 16, 2003

Oct. 16, 2003

FROM:Mr. Nzanga Joseph Mobutu ALTERNATIVE E-MAIL:nzanga_nzanga@tiscali.co.uk Dear Friend, I am the first son of the late Mobutu Sese Seko, the former President of the Congo Republic. I am presently under protective custody in Nigeria as a political refugee. I got your contact during my search for a stranger that can cooperate with me in this mutual transaction. I want you to note that this business will benefit both of us. However, you must confirm your ability to handle this because it involves a large amount of money. The money US$50 million US DOLLARS (Fifty Million United States DollarsOnly) is my share of my father's estate. I boxed and shippedthe money to a security company abroad at the peak of the war/politicalcrisis that rocked my country few years ago. Now the crisis has ended and Ineed a trustworthy person like you to proceed to the place of the securitycompany in order to clear the fund and invest on my behalf as I dont want myname to be used for now. Note that I will send to you the relevant documents that will enable you take possesion of the the fund for onward investment for our mutual benefit. All I need from you is as follows: 1. A letter of committment (duely signed) that you will keep the transaction strictly confidential. 2. Your confirmation of your abilityto handle this. 3. Your IDt or driving licence number for identification to the security company. 4. Your telephone and fax numbers for communication. 5. Your full permanent address. As soon as I get the above information from you, I will disclose to you the name and the country of the security company. I will forward your name and particulars to the securitycompany to enable them contact you accordingly. I will also send to you aLETTER OF AUTHORITY to enable you clear the fund on my behalf. Note thatthis is a very safe transaction as this money is my share of my father's estate. I am waiting for your response to enable us proceed. Regards, Mr. Nzanga Joseph Mobutu.

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PLEASE COME TO MY AID
by MR NZANGA JOSEPH MOBUTU Oct. 16, 2003

Oct. 16, 2003

FROM:Mr. Nzanga Joseph Mobutu ALTERNATIVE E-MAIL:nzanga_nzanga@tiscali.co.uk Dear Friend, I am the first son of the late Mobutu Sese Seko, the former President of the Congo Republic. I am presently under protective custody in Nigeria as a political refugee. I got your contact during my search for a stranger that can cooperate with me in this mutual transaction. I want you to note that this business will benefit both of us. However, you must confirm your ability to handle this because it involves a large amount of money. The money US$50 million US DOLLARS (Fifty Million United States DollarsOnly) is my share of my father's estate. I boxed and shippedthe money to a security company abroad at the peak of the war/politicalcrisis that rocked my country few years ago. Now the crisis has ended and Ineed a trustworthy person like you to proceed to the place of the securitycompany in order to clear the fund and invest on my behalf as I dont want myname to be used for now. Note that I will send to you the relevant documents that will enable you take possesion of the the fund for onward investment for our mutual benefit. All I need from you is as follows: 1. A letter of committment (duely signed) that you will keep the transaction strictly confidential. 2. Your confirmation of your abilityto handle this. 3. Your IDt or driving licence number for identification to the security company. 4. Your telephone and fax numbers for communication. 5. Your full permanent address. As soon as I get the above information from you, I will disclose to you the name and the country of the security company. I will forward your name and particulars to the securitycompany to enable them contact you accordingly. I will also send to you aLETTER OF AUTHORITY to enable you clear the fund on my behalf. Note thatthis is a very safe transaction as this money is my share of my father's estate. I am waiting for your response to enable us proceed. Regards, Mr. Nzanga Joseph Mobutu.

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PLEASE COME TO MY AID
by MR NZANGA JOSEPH MOBUTU Oct. 16, 2003

Oct. 16, 2003

FROM:Mr. Nzanga Joseph Mobutu ALTERNATIVE E-MAIL:nzanga_nzanga@tiscali.co.uk Dear Friend, I am the first son of the late Mobutu Sese Seko, the former President of the Congo Republic. I am presently under protective custody in Nigeria as a political refugee. I got your contact during my search for a stranger that can cooperate with me in this mutual transaction. I want you to note that this business will benefit both of us. However, you must confirm your ability to handle this because it involves a large amount of money. The money US$50 million US DOLLARS (Fifty Million United States DollarsOnly) is my share of my father's estate. I boxed and shippedthe money to a security company abroad at the peak of the war/politicalcrisis that rocked my country few years ago. Now the crisis has ended and Ineed a trustworthy person like you to proceed to the place of the securitycompany in order to clear the fund and invest on my behalf as I dont want myname to be used for now. Note that I will send to you the relevant documents that will enable you take possesion of the the fund for onward investment for our mutual benefit. All I need from you is as follows: 1. A letter of committment (duely signed) that you will keep the transaction strictly confidential. 2. Your confirmation of your abilityto handle this. 3. Your IDt or driving licence number for identification to the security company. 4. Your telephone and fax numbers for communication. 5. Your full permanent address. As soon as I get the above information from you, I will disclose to you the name and the country of the security company. I will forward your name and particulars to the securitycompany to enable them contact you accordingly. I will also send to you aLETTER OF AUTHORITY to enable you clear the fund on my behalf. Note thatthis is a very safe transaction as this money is my share of my father's estate. I am waiting for your response to enable us proceed. Regards, Mr. Nzanga Joseph Mobutu.

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Fw: Slashdot's HTML fix (fwd)
by Jorge Arellano Cid Oct. 16, 2003

Oct. 16, 2003

Hi, Here I quote the email Andreas sent to Rob Malda with regard to Slashdot's HTML (rendering problems). We haven't got an answer, so if you can contact Rob, please do so. I have tried. Currently also with gnu-darwin's maintainer we're trying to contact Slashdot's webmasters with a view to fix it. The problem is that we don't have anything but the generic email address, and surely it collects tons of emails. :( Please, if someone in this list has an inner track to /.'s webmasters, please help us to deliver this email. Cheers Jorge.- ---------------------------------------------------------------- Begin forwarded message: Date: Mon, 29 Sep 2003 17:07:31 +0200 From: Andreas Kemnade <akemnade(a)informatik.uni-bremen.de> To: malda(a)slashdot.org Subject: Slashdot's HTML fix Hello Rob, I (and many others) have some problems reading http://slashdot.org/ with dillo (http://www.dillo.org) It was ok for years but since some weeks the page is almost completely unreadable. Screenshot: http://users.auriga.wearlab.de/~andi/slash2.png Seeing so much black is really depressing ;-) tidy (a html cleanup program from the w3c) shows lots of warnings. But after tidy has cleaned up the html, dillo shows it almost correctly. After some more investigation, I have found the error which makes the page black:  <A HREF="//science.slashdot.org">Science</A>   3 more</TD></TR> <TR><TD >  <A HREF="//yro.slashdot.org">YRO</A></TD></TR> </TD></TR> ^^^^^^^^^^ There has to be only one </td></tr> pair. So it has to be this way:  <A HREF="//science.slashdot.org">Science</A>   3 more</TD></TR> <TR><TD >  <A HREF="//yro.slashdot.org">YRO</A></TD></TR>  without the extra </td></tr>. I guess after removing that table, you have forgotten the </td></tr>. Screenshot with that correction: http://users.auriga.wearlab.de/~andi/slash1.png It looks quite nice again. I hope you can easily find the html bug in the perl code. You'll make a lot of dillo users happy and the page a bit more W3C compiliant. Greetings Andreas Kemnade PS: Your site http://CmdrTaco.net/ also looks nice with dillo.

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Re: [Dillo-dev] FLTK
by Alex Pavloff Oct. 16, 2003

Oct. 16, 2003

> What *does* take far more time is the initial rendering, > while rewrapping is exactly as fast as before. This (and also > that Pango is only used for drawing, and determing the size > of fonts and words) lets me assume that Dw_page_shape_glyphs > is not very efficient. I've tried to track down this with > gprof, but somehow the profile does not give me much clues. > Perhaps it is worth to optimize this code. (The comparison is > a bit unfair because of the different grades of matureness :-) Hi guys, It seems obvious to me, that before an effort is made to rip out one widget system and replace it with another widget system, a little more profiling is in order to confirm indeed, that the problem is Pango. If Pango is the problem, again, before changing the underlying widget system, perhaps some investigation in concert with the Pango developers should be done to see if there's some way to optimize dillo or Pango. Just my $0.02. Alex Pavloff - apavloff(a)esatechnology.com ESA Technology ---- www.esatechnology.com ------- Linux-based industrial HMI ------ -------- www.esatechnology.com/5k -------

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[PATCH] bug in menu.c (SOLVED)
by Frank de Lange Oct. 16, 2003

Oct. 16, 2003

Stephan Goetter wrote: >Hi, > >I just got this, after opening a new tab, going to >http://www.foobar123.org/ (yes, it doesn't exist :) >and then trying to close the Tab. > >Program received signal SIGSEGV, Segmentation fault. >Menu_pick_url (widget=0x8158e80, client_data=0x8113f20) at menu.c:112 >112 gtk_object_remove_data(GTK_OBJECT (bw->menu_popup.over_image), "url2"); >(gdb) backtrace full >#0 Menu_pick_url (widget=0x8158e80, client_data=0x8113f20) at menu.c:112 > bw = (struct _BrowserWindow *) 0x8113f20 >#1 0x40142ef6 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0 >No symbol table info available. >#2 0x40187e16 in gtk_signal_remove_emission_hook () from /usr/lib/libgtk-1.2.so.0 >No symbol table info available. >#3 0x40186f3b in gtk_signal_handlers_destroy () from /usr/lib/libgtk-1.2.so.0 >No symbol table info available. >#4 0x40184b8e in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0 >No symbol table info available. >... > >Greets, >Stephan > Found the cause. This error is present in the CVS version of Dillo as well, but there it does not matter much (probably why it was not discovered before). In menu.c:Menu_add(): if (callback != NULL) { gtk_signal_connect(GTK_OBJECT(menuitem), "activate", (GtkSignalFunc) Menu_pick_url, data); ^^^^ "data" should be "bw", as Menu_pick_url() needs a BrowserWindow* as second parameter. In CVS Dillo "data" (which is used as user data for callbacks) happens to be always set to "bw", so this bug did not manifest itself. In the patched version, some callbacks expect a DilloDoc* as parameter though... So Menu_pick_url() is called with a DilloDoc* instead of a BrowserWindow*... The fix is simple: <PATCH> diff -pruN dillo/src/menu.c dillo_patched/src/menu.c --- dillo/src/menu.c 2003-09-25 15:10:24.000000000 +0200 +++ dillo_patched/src/menu.c 2003-10-16 14:56:38.733763968 +0200 @@ -109,7 +109,7 @@ static GtkWidget * } if (callback != NULL) { gtk_signal_connect(GTK_OBJECT(menuitem), "activate", - (GtkSignalFunc) Menu_pick_url, data); + (GtkSignalFunc) Menu_pick_url, bw); gtk_signal_connect(GTK_OBJECT(menuitem), "activate", (GtkSignalFunc) callback, data); } </PATCH> Jorge, can you commit this patchlet to CVS? Cheers//Frank -- WWWWW ________________________ ## o o\ / Frank de Lange \ }# \| / +46-734352015 \ \ `--| _/ <Hacker for Hire> \ `---' \ +31-640037120 / \ frank(a)unternet.org / `------------------------' [ "Omnis enim res, quae dando non deficit, dum habetur et non datur, nondum habetur, quomodo habenda est." ]

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Re: [Dillo-dev] [PATCH] version 1 of keyboard navigation patch
by Frank de Lange Oct. 16, 2003

Oct. 16, 2003

Glyn Kennington wrote: > I like most of it. But after a very short time, I've found some things > >that I think need improving. So, in order of decreasing importance: > >1) I've found a bug that will cause dillo to crash: > > Go to a page whose first link is in an alt-tagged image. (The one I've > been using for this bugreport is www.guardian.co.uk .) > > Press the key for `link DOWN'. This will make the image link the > current link (status bar reads "http://www.guardian.co.uk/0,6961,,00.html") > > Go to another page. This can be by clicking Home, Back etc, typing in > another URL, or activating a link on the current page. > > Once dillo is about to start rendering the new page, it dies with a > segfault. gdb tells me that it's at the end of Dw_image_destroy(): > g_free (image->alt_text); > >This crash still occurs if I move to the next link (outside the image) >before going to a different page. > > I have not been able to reproduce this yet, will try again and fix anything I find... But, as stated, it does not happen here... Could have something to do with your next remark? [ LIST: has anyone else seen this? ] >2) Patching problems. I know the email said `use cvs 14/10/2003', but >the patch filename includes the string 20031015, so I attempted to patch >against my just-updated checkout. This normally wouldn't be a problem >over the course of only a day, but today there was some change to the >arguments of a_Commands_set_selection which broke the patch. If you >could include on your webpage the exact date and time of the CVS >checkout, near the link to the patch, it would probably prevent this >sort of confusion from happening again. > > Hmmm... tricky. I'll add a GMT date/time to the CVS version to be used. The date-string on the patch is autogenerated by my patch scripts, it just tells the date I made a release. It is not necessarily related to the CVS date the patch is based on. Sometimes I make incremental changes to a patch without updating CVS. >3) The TODO mentions more bindings. Do you intend to make Back > bindable? > > I intend to make everything bindable. That is, everything which can be bound. That is 'the GTK+ way' of doing things... Cheers//Frank -- WWWWW ________________________ ## o o\ / Frank de Lange \ }# \| / +46-734352015 \ \ `--| _/ <Hacker for Hire> \ `---' \ +31-640037120 / \ frank(a)unternet.org / `------------------------' [ "Omnis enim res, quae dando non deficit, dum habetur et non datur, nondum habetur, quomodo habenda est." ]

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