This article shows how to make a Bourne Shell script translatable by means of the “gettext” toolchain and how it then operates with natural language strings translated into the user’s language.
“jack-autostart” – Setup and Start Scripts for jackd
9. September 2015 in GNU/Linux, Multimedia, Programming, Technology.
“jack-autostart” is essentially a start script (I use it for my XFCE sessions) that
- starts „jackd“ with appropriate command line parameters and
- configures as many applications as possible to route playback to the JACK service.
- For this purpose, redirect all ALSA playback to JACK, and
- set JACK as default audiosink/-source for GStreamer.
jack-autostart Architecture Overview
Adding Custom Format Buttons To tinyMCE in WordPress 4
25. August 2015 in Programming.
Introduction
In my technical articles I sometimes use inline fragments typed in a monospace font to highlight code or filenames that appear within floating paragraph text. Back in the days I did this with the <tt> element, nowadays I use <span class="tt"> and a CSS style like
.tt { font-family: monospace; }
I wanted to extend the tinyMCE in WordPress with a toggle button that behaves like the Bold or Italic buttons and surrounds selected text with such a <span class="tt"> element or, when pressed while an already surrounded text is selected, removes that surrounding again. Also, when the cursor is inside such an element, the button should switch to an “active” state that indicates that the character format can be deselected.
DTP With Free Software?
31. Juli 2015 in Multimedia, Technology.
In case anyone is wondering how to produce documents with
- complex structure,
- multiple pages and
- professional quality
using free software, the answer is of course: with LaTeX. Consider the alternatives: Office (Libre, Open, the KDE stuff) are a nuisance when it comes to properly customized sectioning, and for larger documents or 100% precise positioning they turn into an outright PITA. Scribus is too limited to really overcome the Office competition. Inkscape addresses a different problem.
PHP HTTPS Streams: Explicitly Using A CA For Verification
20. Juli 2015 in Programming, Technology.
When I tried setting my Owncloud Calendar’s ICS export URL (which uses HTTPS) as a calendar import URL in Dolibarr (currently installed are Owncloud 8.0 and Dolibarr from the version 3.6.2-3 Debian package), Dolibarr gave me these errors (taken from the error.log of the webserver, with some additional formatting):
PHP Warning:
file(): SSL operation failed with code 1.
OpenSSL Error messages:\nerror:14090086:SSL routines:
SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
in /usr/share/dolibarr/htdocs/comm/action/class/ical.class.php on line 60
PHP Warning:
file(): Failed to enable crypto
in /usr/share/dolibarr/htdocs/comm/action/class/ical.class.php on line 60
This makes sense, since my Owncloud’s HTTPS uses a certificate that is signed by my self-signed CA. PHP, as by version 5.6, requires HTTPS certificates to verify for streaming access by default, which is a good thing.
To solve this, I had to make the CA of the Owncloud web certificate known to Dolibarr.
Rollbare Ablage
27. Juni 2015 in Other, Technology.
Mit einfachsten Bauteilen aus dem Baumarkt habe ich mir eine Ablage mit Rollen Marke “No Bulls***” gebaut. Das Möbelstück ist stabil und ziemlich schwer (ich konnte es mit Ach und Krach alleine in den 2. Stock bringen), die Auflage ist relativ solide (es ist halt Grobspanplatte, als Werkzeugablage oder ähnlich ist sie gut zu gebrauchen), und der Stauraum entlastet meine Regale deutlich. Die Materialkosten liegen bei ca. 35 Euro.
Blick vom Königsstuhl auf die Rheinebene
25. Juni 2015 in Other.
Strömender Regen bei Auf- und Abstieg, aber genau als ich auf dem Gipfel war, gab es diese klasse Aussicht:
Etwas links der Bildmitte ist übrigens die durch Straßen und Feldwege gebildete “Achse” zu sehen, die in Schwetzingen durch Schlosspark und Schloss führt. Sie deutet ziemlich genau auf die Kalmit, den höchsten Berg des Pfälzerwalds.
Banana Pi Case Remod
25. Februar 2015 in GNU/Linux, Physics, Technology.
I cut a bay for my Clicktronic HDMI-to-DVI adapter into my Banana Pi case.
HDMI adapter bay milled into the case (lower half with board, power and display connectors attached).
To maintain structural stability of the case, I had to cut about one half of the bay into the lower half of the case and the other into its upper half. To do this, I had to raise the mount level of the board by about 5 milimeters (to some 15 milimeters above case interior bottom overall).
Luckily, the front and back panels do have generous enough openings for the other connectors (Ethernet, dual USB host ports, SD card) to still pass through.
Also, the (massive) HDMI connector/adapter thing is savely hinged into the cut of the bay, which fits it tightly, hindering the adapter from excessive tilting, which could lever the board out of it’s socketing or (worse) tear the HDMI connector from the board.
But the fix-mounted USB power supply now hung “in the open”, passing any stress on it directly over to the connector and board.