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  • The Pragmatic Bookshelf: Programming Groovy

    The Pragmatic Bookshelf | Programming Groovy

    From the wikipedia article on Groovy:

    Most Java code is also syntactically valid Groovy. […]

    In July 2009, Strachan wrote on his blog that “I can honestly say if someone had shown me the Programming in Scala book by Martin Odersky, Lex Spoon & Bill Venners back in 2003 I’d probably have never created Groovy.”[1] Strachan left the project silently long before the Groovy 1.0 release in 2007.

    Maybe I better focus on Scala than on Groovy.

    Update 2011-07-01:
    Purchased it as a used book through Amazon.de.

  • The Pragmatic Bookshelf | Programming Scala

    The Pragmatic Bookshelf | Programming Scala

  • book: Programming Clojure

    The Pragmatic Bookshelf | Programming Clojure

    Lisp on the JVM – maybe a nice idea.

    Update 2011-08-07
    Found a Clojure User Group Berlin.
    Order the book through Amazon as used book, but with Amazon Prime service.

  • form fields in PDF – how to retrieve their details?

    This command line shows you a few details:

    $ pdftk … dump_data_fields

    Not enough details for me.

    What about CAM::PDF?
    It comes with a couple of nice sample utilities (the bin/ subdirectory), one of them is called listpdffields.pl . It also does not show me enough details, but I think I will enhance that one.

    Update / 2010-12-11:
    Yes, CAM::PDF works very well for me. I wrote another article on that.

  • CAM::PDF – PDF manipulation library by “Clotho Advanced Media”

    CAM::PDF – search.cpan.org

    I am currently into PDF “reading”, and this software looks rather promising.

    There are also a couple of nice command line utilities in the TAR ball’s bin/ subdirectory.

    • appendpdf.pl
    • asciify
    • changepagestring.pl
    • changepdfstring.pl
    • changerefkeys.pl
    • crunchjpg_tmpl.pdf
    • crunchjpgs.pl
    • deillustrate.pl
    • deletepdfpage.pl
    • extractallimages.pl
    • extractjpgs.pl
    • fillpdffields.pl
    • getpdffontobject.pl
    • getpdfpage.pl
    • getpdfpageobject.pl
    • getpdftext.pl
    • listfonts.pl
    • listimages.pl
    • listpdffields.pl – sic!!! – I adapted that a little, now it shows page num. (with a little extra help from Chris Dolan) and the position for each field
    • pdfinfo.pl
    • readpdf.pl – shows you the PDF data structure as perl data dump
    • renderpdf.pl
    • replacepdfobj.pl
    • revertpdf.pl
    • rewritepdf.pl
    • setpdfbackground.pl
    • setpdfpage.pl
    • stamppdf.pl
    • uninlinepdfimages.pl

    Of course, they all use /usr/bin/perl and not /usr/local/perlbrew/bin/perl, and I am currently still into perlbrew., so how would I replace all these occurrences?
    That reminded me of that fixin utility from the very old days, which updates the #! (“shebang”) line appropriately.

  • App::perlbrew : the man page and “perlbrew list”

    The man page makes you think, there is a “perlbrew list“, and older versions didn’t have it. Older versions had a “perlbrew installed” instead. Quite a good reason to upgrade you perlbrew.

  • editing JRXML in emacs using nxml-mode

    Just created an RELAG-NG (“compact”) grammar for editing JRXML files.

    I used trang for that, and the “input module” was a sample JRXML file. Yes, that means: occasionally some JRXML file will have tags or attributes, that my jasperreport.rnc does not know yet. But then re-running trang on an additional sample file is not really a big job.

    I really love editing XML.

    I re-ordered and “grouped” the XML pieces for the elements in my sample reports. That helps to clean up some things, that got a little messy over the time. In the end you recognize, how much duplicate code you have.

    You may want to fight the redundancy problems through JRXML subreports.
    I actually made my JRXML a “here document” for a shell script. A couple of hours later I knew, that a perl script is the better approach. Another couple of hours later there were plenty little parameterized “here documents“. I have solved my redundancy problem here through “looping over lists of configurations”.

  • Harry Potter and the Deathly Hallows: Part 1 (2010)

    Harry Potter and the Deathly Hallows: Part 1 (2010)

  • an alert on my FRITZ!Box 7390: “internet: Bonk Attack detected”

    I found this message today in my telnet session on my FRITZ!Box:

    Nov 26 10:16:25 dsld[2178]: internet: Bonk Attack detected (1)

    I think, this I saw this already a couple of months ago, and I think, the box rebooted then, but it didn’t do that no.

  • Adium, the free instant messaging application for Mac OS X

    Adium – Download

    It’s based on libpurple, and it can also deal with Skype and OKCUPID instant messaging.