Post by: hpguru on April 22, 2002, 08:22:27 PM
Name = "Remove Image Borders"
Active = TRUE
Bounds = "<imgs*>"
Limit = 256
Match = "(*((align|alt|class|controls|dir|dynsrc|height|hspace|id|"
"ismap|lang|longdesc|loop|lowsrc|name|onclick|ondblclick|"
"onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|"
"onmouseout|onmouseover|onmouseup|src|start|style|title|"
"usemap|vspace|width)((=$AV(*))|) )#)+ *"
Replace = "<img @ border="0">"
If there are attributes missing that you need you'll have to add them. Remove any you don't want.
Post by: altosax on April 22, 2002, 10:28:48 PM
hi hpguru,
i'm puzzled: why to remove the border from an image you have to match all other attributes?
perhaps i haven't understood in deep your filter, please explain it to me.
in the meantime, i suggest
Bounds = "<im(g|age)s*>"
sincerely,
altosax.
Post by: hpguru on April 23, 2002, 12:38:22 AM
This filter pushes all the existant attributes listed onto the replacement stack when matched. Attributes not listed (such as border) are not matched so they don't get pushed to the stack and are lost in the subsequent replacement.
In the replacement "@" dumps all the attributes stored in the replacement stack to the replacement string and the desired border attribute is inserted. This way border is added only once whether it exists or not and irregardless of it's position within the img tag. It acomplishes what it took two filters to do before.
I don't use "<im(g|age)s*>" because I've never seen an "<image>" tag used anywhere. I can't find any documentation of such a tag.
Edited by - hpguru on 23 Apr 2002 02:04:16
Post by: Jor on April 23, 2002, 02:00:17 AM
Alas it was taken up by some idiots, as Frontpage accepts it (and I believe some versions even use it instead of <img>). I've seen it a couple of times on other sites... fortunately it doesn't seem to be as wide-spread as other MS or NS "extensions" of HTML.
Post by: Jor on April 23, 2002, 02:11:55 AM
Name = "Remove Image Borders"work just as well? No need to add border="0" to all images... since the default is none.
Active = TRUE
Bounds = "<im(g|age)s*>"
Limit = 256
Match = "1 border=$AV(*) 2"
Replace = "1 border="0" 2"
Post by: hpguru on April 23, 2002, 02:31:13 AM
quote:
<image> is a MicroSoft "innovation"...
That's what I presumed but I couldn't find mention of it at
http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/dhtml_reference_entry.asp
I always investigate when I find an ad that wasn't blocked and this tag never showed up. Even if I do find it I doubt I'll modify my filters to accomidate it unless I think I'll be returning to the site frequently. Even then I may not do it since eDexter zaps almost all the ads. Even if I go *proxyless* I see no ads, just blank areas and a few outlines here and there.
Anyway this filter I posted is a little on the bulky side so when I find a better way to do it cleanly I'll post it.
Post by: hpguru on April 23, 2002, 02:35:37 AM
quote:
... since the default is none.
Yes but if the image is a link the browser draws a border. Err ahh IE and Netscape draw a border. Opera doesn't.
That filter won't match if the border attribute is missing.
Edited by - hpguru on 23 Apr 2002 03:44:47
Post by: Jor on April 23, 2002, 02:38:33 AM
BTW, can ANYONE open these MSDN urls from within Opera? No matter what config I try (Prox on, Prox off, Prox web bypassed, Prox headers bypassed, etc) I only see the following:
"Welcome to the MSDN Library
Component Development
Data Access
Development (General)
Enterprise Development
Graphics and Multimedia
Messaging and Collaboration
Mobile and Embedded Development
.NET Development
.NET Development
Networking and Directory Services
Office Solutions Development
Security
Security
Setup and System Administration
User Interface Design and Development
User Interface Design and Development
Visual Tools and Languages
Web Development
Windows Development
XML Web Services
XML Web Services
MSDN Library Archive"
These URLs are really the only sites I still need MSIE for.
Edited by - Jor on 23 Apr 2002 03:41:11
Post by: Jor on April 23, 2002, 02:40:34 AM
quote:
Yes but if the image is a link the browser draws a border.
It does? *L* Been a long while since I used MSIE as my default browser... Opera allows for full control over this. (Preferences -> Fonts and Colors -> My Link Style -> Always border on image links). I have it set for disabled.
Post by: pooms on April 23, 2002, 02:52:02 AM
up putting msdn.microsoft.com in my bypass list temporarily to
make it work. I never got around to looking at their site to see
why that was happening.
Post by: pooms on April 23, 2002, 03:03:55 AM
HTTP header value. Try changing Opera's Browser Identification value
to an MSIE value and I bet it works!
Post by: Jor on April 23, 2002, 03:13:12 AM
That's it... and MS also seems to accept Mozilla user agents. I've added it to my DumbSites list... and will send a complaint to them some time tomorrow ^.^
Post by: hpguru on April 23, 2002, 03:29:55 AM
quote:
I had that same problem with MSDN pages with IE6 as well. I ended
up putting msdn.microsoft.com in my bypass list temporarily to
make it work. I never got around to looking at their site to see
why that was happening.
Same here. I need the info more than I need to pick their site apart so they are in the bypass. :( Realistically though, MS didn't write those pages for any other browser but IE and unfortunately that is the only browser that will render them correctly.
Post by: hpguru on August 22, 2002, 05:17:46 AM
Name = "Remove Image Borders v2.1"
Active = TRUE
Multi = TRUE
URL = "$TYPE(htm)"
Bounds = "<imgs*>"
Limit = 300
Match = "( (border=$AV(0)>)1)|( (border=$AV(0)s)1 2)"
"|( (border=$AV([#1:10])>)$SET(1=border="0")$SET(2=>))"
"|( (border=$AV([#1:10])s)$SET(1=border="0" ) 2)"
"|( >)$SET(1= border="0")$SET(2=>)"
Replace = " 12"
Can anyone think of a way to make it fail to match in the bounds match if border="0" already exists?
Facing each other,
a thousand miles apart.
Post by: altosax on August 22, 2002, 10:27:03 AM
why not the filter jor proposed?
also, read my post in the if-then-else thread.
altosax.
Post by: altosax on August 22, 2002, 11:04:52 AM
i'm sorry, but i hadn't read first your answer to jor. so you need both to replace the border attribute when different from 0 and add border=0 when missing.
well, your filter works as expected but you can merge some option to make it simpler:
Name = "Remove Image Borders v2.2"
Active = TRUE
Multi = TRUE
URL = "$TYPE(htm)"
Bounds = "<im(g|age)s*>"
Limit = 300
Match = " border=$AV(*)2$SET(1=border="0")"
"| >$SET(1= border="0">)"
Replace = " 12"
altosax.
Post by: TEggHead on August 22, 2002, 12:52:23 PM
quote:
Match = " border=$AV(*)2$SET(1=border="0")| >$SET(1= border="0">)"
Aren't we overlooking a small thing here? this type of filters may follow a common logic, but that is certainly not the if-then-else logic but rather a no-matter-what logic, not? I mean, this is simply a case of
if it matches, fine, replace it, otherwise fine too, just insert it, so both branches end up doing the same thing, very atypical for an if-then-else structure, in fact quite the opposite, this looks more like an assertion
basically, the filter will need to always match (no matter if the attribute is there, the replacement is always inserted) so we do not need to complicate the match with all kinds of exceptions coz there's only one exception basically, the attribute not being present...
based on that I found the following format to always work
Match = "<TAG( ATTRIBUTE=$AV(*)| ) 1>"
Replace = "<TAG ATTRIBUTE=MyValue 1>"
HPGuru
quote:
Can anyone think of a way to make it fail to match in the bounds match if border="0" already exists?
This would be the same test to exclude a replacement from being matched by the filter again...something like
Bounds = "<TAG(^*ATTRIBUTE=MyValue)*>"
Edited by - TEggHead on 22 Aug 2002 14:06:14
Post by: hpguru on August 22, 2002, 05:47:37 PM
What I've opted for however is to globally set the border attribute to "0" via my injected style sheet. 
quote:
Aren't we overlooking a small thing here? this type of filters may follow a common logic, but that is certainly not the if-then-else logic but rather a no-matter-what logic, not?
Actually the implied logical structure is very similar to the IF-THEN-ELSE stuctures used in high level computer languages or like a CASE structure which is
CASE
(IF) test-clause_1 THEN true-clause_1
(IF) test-clause_2 THEN true-clause_2
...
(IF) test-clause_n THEN true-clause_n
default-clause
END
This runs through the (IF)-THEN tests till it finds a true result. If all tests are false it can process an optional default-clause or just fail the entire series of tests and exit without doing anything.
Years ago I wrote assembler code for HPs advanced scientific calculators such as the HP48 SX and GX series. Saturn Assembler being a low level machine language had no higher level branching structures but you could roll your own. It all depended on how you manipulated register/stack data and how you employed gotos and gosubs following simple bit and flag tests. So an IF-THEN-ELSE structure could be constructed as an implied meta structure but it wasn't actually there. Even so the code behaved as if it was there. This filter I posted has the same sort of *implied meta structure* that isn't really there but you get the same result you would if it was present.
Facing each other,
a thousand miles apart.
Edited by - hpguru on 22 Aug 2002 18:48:40
Post by: altosax on August 22, 2002, 06:37:06 PM
quote:
based on that I found the following format to always work
Match = "<TAG( ATTRIBUTE=$AV(*)| ) 1>"
Replace = "<TAG ATTRIBUTE=MyValue 1>"
using a slightly modified code, i think this structure could be used EVERY TIME we need to replace or set an attribute value:
Bounds = "<tags*>"
Match = "(1attribute=$AV(*)|1) 2"
Replace = "1attribute="my_value"2"
i had need to modify a little the tegghead structure to take in account all variations, with a particular attention to spaces between attributes.
the variable is just to consume parens when the attribute we are searching for is not present.
altosax.
Post by: hpguru on August 22, 2002, 06:51:45 PM
That filter will place the desired attribute outside the tag in the event the attribute was missing.
Facing each other,
a thousand miles apart.
Post by: altosax on August 22, 2002, 06:57:39 PM
Bounds = "<tags*>"
Match = "(1attribute=$AV(*)|1) 2>"
Replace = "1attribute="my_value"2>"
altosax.
Post by: altosax on August 22, 2002, 07:01:49 PM
Bounds = "<tags*>"
Match = "1(attribute=$AV(*)2|)>"
Replace = "1attribute="my_value"2>"
i think this is the state of the art for this kind of filters
altosax.
Post by: hpguru on August 22, 2002, 07:12:22 PM
<TAG(^*ATTRIBUTE="MY_VALUE")*>
Facing each other,
a thousand miles apart.
Post by: hpguru on August 22, 2002, 07:17:46 PM
<TAG(^*ATTRIBUTE=("|)MY_VALUE("|))*>
Facing each other,
a thousand miles apart.
Post by: hpguru on August 22, 2002, 07:21:54 PM
<TAG(^*ATTRIBUTE=$AV(MY_VALUE))*>
Facing each other,
a thousand miles apart.
Post by: hpguru on August 22, 2002, 07:40:26 PM
Replace = "1 attribute="my_value"2>"
Facing each other,
a thousand miles apart.
Post by: TEggHead on August 23, 2002, 12:15:24 AM
quote:
i think this structure could be used EVERY TIME we need to replace or set an attribute value:
It is just another form of the basic test for 'something or nothing' as described in "Tips And Tricks.html" ;)