Mention the need for UTF-8.

diff --git a/blog/data/2018-07-31-exif-photo-rss.txt b/blog/data/2018-07-31-exif-photo-rss.txt
index 424d8c7e686b55e699b270ead9dcad7909451c5b..b59320377cf492ae8bc56c016962770c7c5e3997 100644 (file)
--- a/blog/data/2018-07-31-exif-photo-rss.txt
+++ b/blog/data/2018-07-31-exif-photo-rss.txt
@@ -9,11 +9,12 @@ working for data hoarders like Google or Dropbox.  The last few days I
 have drafted an approach that might work out, and I would like to
 share it with you.  I would like to publish images on a server under
 my control, and point some Internet connected display units using some
-free and open standard to the images I published.  Many years ago, I
-hoped to find a digital photo frame capable of reading a RSS feed with
-image references (aka using the <enclosure> RSS tag), but was
-unable to find a sensible supplier of such frames.  In the end I gave
-up that approach.</p>
+free and open standard to the images I published.  As my primary
+language is not limited to ASCII, I need to store metadata using
+UTF-8.  Many years ago, I hoped to find a digital photo frame capable
+of reading a RSS feed with image references (aka using the
+&lt;enclosure&gt; RSS tag), but was unable to find a sensible supplier
+of such frames.  In the end I gave up that approach.</p>
 
 <p>Some months ago, I discovered that
 <a href="https://www.jwz.org/xscreensaver/">XScreensaver</a> is able to
@@ -30,13 +31,15 @@ a Raspberry PI unit with LibreELEC, and wanted to provide them with a
 screen saver showing selected pictures from my selection.</p>
 
 <p>Armed with motivation and a test photo frame, I set out to generate
-a RSS feed for the Kodi instance.  I adjusted my
-<a href="https://freedombox.org/">Freedombox</a> instance, created
+a RSS feed for the Kodi instance.  I adjusted my <a
+href="https://freedombox.org/">Freedombox</a> instance, created
 /var/www/html/privatepictures/, wrote a small Perl script to extract
 title and description metadata from the photo files and generate the
 RSS file.  I ended up using Perl instead of python, as the
 libimage-exiftool-perl Debian package seemed to handle the EXIF/XMP
-tags I ended up using, while python3-exif did not.</p>
+tags I ended up using, while python3-exif did not.  The relevant EXIF
+tags only support ASCII, so I had to find better alternatives.  XMP
+seem to have the support I need.</p>
 
 <p>I am a bit unsure which EXIF/XMP tags to use, as I would like to
 use tags that can be easily added/updated using normal free software