Just a quick reminder:
To revert a complete working copy or a single file use:
svn merge -rHEAD:PREV .
# or
svn merge -rHEAD:PREV path/to/file
svn commit -m "reverted"
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Next time i see umlauts in source, I’ll scream. Loud.
In the mean time I try this:
find . -iname "*.java" -exec sh -c 'iconv -f cp1252 -t utf-8 {} > {}.utf8' \;
for i in `(find . -name "*.utf8")`; do mv $i ${i/.utf8/}; doneBefore you try this, make a backup of your files. It worked for me but i don’t guaranty that your files won’t vanish.
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I found no fancy graphical xml validator on OS X, but this isn’t a problem.
OS X includes libxml which comes with xmllint.
To validate a xml file against a schema:
xmllint --noout --schema sitemap.xsd sitemap.xml
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After a server crash a wanted to compare all actual files with the backuped data. An easy way is to compare the md5 hashes like that:
First create recursively md5 hashes from all files in that directory:
find ./backup -type f -print0 | xargs -0 md5sum > /checksums_backup.md5
Then check the actual data:
md5sum -c checksums_backup.md5
I was lucky, no files where damaged.
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Once again, a quick reminder for myself: Howto display the internet traffic on your Sony Ericsson C702:
Menü, #, 4th Tab, 5
(On a german phone: “Einstellungen / Anrufe / Zeit und Kosten”)
I guess that works with other SEs like K800i and K850i.
I remember an old SE that i had which always displayed the traffic after ending an internet session, i wonder why they changed it.
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Zooming with the CTRL+Mouse Wheel Up/Down has been in inversed in Firefox 3. In version 2 you zoomed in (enlarged the text) with CTRL+Mouse Wheel Down and zoomed out with CTRL+Mouse Wheel Up, its now in Firefox 3 the other way round.
The revert back to the old behaviour, change
mousewheel.withcontrolkey.numlines = 1
to
mousewheel.withcontrolkey.numlines = -1
in about config.
To me “pulling” the page towards myself always felt much more natural to me than the other way round, but that’s just me.
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Just a quick reminder for myself:
With the default installation of an Oracle Express (Oracle XE) comes two shell script with all the necessary environment variables to use sql*plus, exp, imp and the like on the command line:
source /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/oracle_env.sh
respectively
source /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/oracle_env.csh
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Hibernate supports multiple types of inheritance mapping, some of them (Table per class, Table per subclass) using a discriminator column to decide the class.
The type of the discriminator can be one of
string, character, integer, byte, short, boolean, yes_no, true_false
In case you need to use any other than string or character, i.e. integer, you have to give the base class a default discriminator-value like 0 or -1 or whatever fits, otherwise you’ll end up with a an exception like:
org.hibernate.MappingException: Could not format discriminator value to SQL string
as Hibernate uses the class name of the base class to derive a default value.
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Just a quick reminder for myself:
int a = 0/0; // Throws ArithmeticException
double d1 = 0/0.0; // d1 is NaN
double d2 = 1/0.0; // d2 is Infinity
double d3 = -1/0.0; // d3 is -Infinity
Can cause some headache if things fall apart in the JDBC driver and not before. Grmpf.
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A regular expression to replace all ampersands (&) in a text that are not part of an entity:
t = t.gsub(/&(?!#?\w+;)/, '&')
Language is ruby. The regexp feature used is called a negative lookahead.
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