Archive for the ‘Generative XML’ Category
Thursday, January 21st, 2016
python libxml2 dita
For correct transformation of DITA files (XML-standard for modular documentation), it is necessary to pull information from DTD (document type definition). In my python code, sometimes I did get this information and sometimes not. Now I’ve tracked the source of instability and corrected the code.
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Posted by olpa in Generative XML, publishing, python | No Comments »
Thursday, November 1st, 2012
Sometimes I dump binary data into XML. Being aware of illegal bytes (0-8,B-C,F-1F), I encode everything in base64. But there is a nice alernative way, just revealed by Roger Costello in the xml-dev maillist:
Move any illegal characters into the Private Use Area: for each illegal character add hex E000.
Posted by olpa in Generative XML | No Comments »
Tuesday, July 31st, 2007
Google Web Toolkit (GWT) allows developers to use the Java programming language to build no-compromise AJAX applications. After announcing my project in its discussion group, I got a reasonable question: “Can you explain how this could be used within the GWT client code?”
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Posted by olpa in Generative XML | 2 Comments »
Monday, July 30th, 2007
I’ve announced Generative XPath in few places. This entry is to assist tracking responses. xml-dev | comp.lang.xml | Google Web Toolkit | google-ajax-discuss | comp.lang.scheme(.lisp) | ssax-sxml.
Posted by olpa in Generative XML | No Comments »
Saturday, June 23rd, 2007
Unfortunately, I’m not going to speak at gttse’2007 participants workshop. My extended abstract (Recursion-free XPath 1.0 implementation) was rejected, the comment from the reviewers is below.
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Posted by olpa in Generative XML, science | 2 Comments »
Tuesday, June 19th, 2007
I like Prague, it’s a very beautiful city. My contribution to XML Prague 2007:
* paper “Generative XPath”
* presentation slides
* poster XML to beautiful documents, and how it looked like
Posted by olpa in consodoc, Generative XML, publishing, science, TeXML | No Comments »
Sunday, June 10th, 2007
Generative XPath (0.9.1) is an XPath 1.0 processor that can be adapted to different hierarchical memory structures and different programming languages. Customizing Generative XPath to a specific environment is several magnitudes of order easier than implementing XPath from scratch.
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Posted by olpa in Generative XML, science, XSieve | 2 Comments »
Wednesday, February 28th, 2007
I’ve just sent an extended abstract for the XML Prague 2007 conference. I hope it will be accepted.
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Posted by olpa in Generative XML, science, XSieve | 2 Comments »
Wednesday, February 7th, 2007
The expression “1+2+3” is converted to:
(list-ec
(:list e1 (gx:. gx:unit gx-ffi:number gx:fido (gx:unit 1)))
(:list e2
(gx:. gx:unit gx-ffi:number gx:fido
(list-ec
(:list e1 (gx:. gx:unit gx-ffi:number gx:fido (gx:unit 2)))
(:list e2 (gx:. gx:unit gx-ffi:number gx:fido (gx:unit 3)))
(+ e1 e2))))
(+ e1 e2))
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Posted by olpa in Generative XML | No Comments »
Wednesday, July 26th, 2006
I’ve dumped some my thoughts to text. Result is a draft of a possible paper: “Towards s-expression based XPath/XSLT implementation“.
Posted by olpa in Generative XML | 2 Comments »
Saturday, July 22nd, 2006
Recently I found the paper “XPath Filename Expansion in a Unix Shell” (HTML, PDF) by Kaspar Giger and Erik Wilde. I’m pleased the authors have referenced my developments (“find with XPath over file system“).
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Posted by olpa in Generative XML | No Comments »
Thursday, July 13th, 2006
Many XPath tutorials use file paths as an analogy of XPath. While it is ok from a high-level point of view, the analogy is misleading and actual technical implementations (one, another, my) are kludge (at least, my implementation). Here are some issues.
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Posted by olpa in Generative XML | 3 Comments »
Sunday, August 21st, 2005
Finally, my GTTSE 2005 photos are online. The start page is approximately 2Mb, and larger photos are of 300Kb-1Mb size. Unfortunately, I can’t describe how great was the event. Instead, read “Resume from GTTSE Summer School” by Steen Brahe.
Posted by olpa in Generative XML, science | No Comments »
Tuesday, June 21st, 2005
Finally, “with-param” in the Scheme function “x:apply-templates” works. It took some time because I forget an experience with making “mode” working. Again, parameter name should be in the dictionary. Unfortunately, namespaced parameters doesn’t work, probably due to a bug of libxslt. Reported, waiting.
Posted by olpa in Generative XML | No Comments »
Tuesday, June 14th, 2005
From the mail discussions: www.askemos.org. “This is actually a Scheme VM in byzantine synchronisation over a P2P network with some administration free (root-less) permission control system.” The point of interest for me is “Scheme VM”.
Posted by olpa in Generative XML | No Comments »
Wednesday, June 8th, 2005
I’ve submitted my new project XSieve to the Google’s Summer of Code program.
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Posted by olpa in Generative XML, XSieve | 1 Comment »
Tuesday, June 7th, 2005
I’ve published the article “Reusing XML Processing Code in non-XML Applications” ([PDF]) version 1.0 and posted announces to different forums.
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Posted by olpa in Generative XML, science | No Comments »
Sunday, June 5th, 2005
Some time ago I submitted an article to the Generative Programming and Component Engineering (GPCE’05) conference. Article is rejected, but to my great surprise I’ve got useful and inspiring comments.
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Posted by olpa in Generative XML, science | No Comments »
Friday, May 27th, 2005
A small test case revealed weak points in my code. Fixing each point was making the code worse and worse. Fortunately, I got insight. Why not to use a fake node? I did it, and code became simpler, hundred lines smaller, and I automatically fixed a weak point for which I had had no idea for a workaround.
Posted by olpa in Generative XML | No Comments »
Thursday, May 26th, 2005
A small firm has a Subversion server located in a local network. The network is secured by a firewall. The task: give access to the Subversion server from the outside, both to Linux and Windows users. The solution should be as secure as possible.
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Posted by olpa in Generative XML | 4 Comments »