Today, we went home from our stay in
Manderveen. We decided to search for two border
poles, but while drivingvthrough Germany, Conny thought that she saw some one. At first I dismissed it, thinking we
were too far from the border, but than we saw another one. We went back to
have a look at them. We visited the followein border poles:
This afternoon, Conny and I mada a walk
through the country side. At one point, while walking with the sun on our
backs, we noted some bright spots in the clouds. We noted some other bright
spots in some other clouds, and realized that they were on a bow. When we
walked further the bow became clearer. We also noticed some slight colouration:
red on the outside and blue on the inside. We took several pictures. Above one
that I stiched together (with Hugin) from two pictures. At home, I concluded that the phenomenon we
saw was like a fog bow, or
also called a white rainbow. Because it was not
in the fog, but in a cloud, I would call it a cloud bow.
Today is palindome date of the form (D)D-(M)M-YY
and/or YY.(M)M.(D)D: 12-1-21 and/or 21.1.12. This year there are nine
other palindrome date like this and six other special dates, one of which
we already have had. All of these, including today, are:
January 2: Palindrome date M/D/YY and YY.M.D, double date: D-M-YY.
January 12: Palindrome date DD-M-YY and YY.M.DD.
February 1: Palindrome date D-M-YY, double date M/D/YY and YY.D.M
February 10: Double date MM/DD/YY and YY.MM.DD.
February 12: Palindrome date DD-MM-YYYY, DD-M-YY and YY.M.DD.
March 12: Palindrome date DD-M-YY and YY.M.DD.
April 12: Palindrome date DD-M-YY and YY.M.DD.
May 12: Palindrome date DD-M-YY and YY.M.DD.
June 12: Palindrome date DD-M-YY and YY.M.DD.
July 12: Palindrome date DD-M-YY and YY.M.DD.
August 12: Palindrome date DD-M-YY and YY.M.DD.
September 12: Palindrome date DD-M-YY and YY.M.DD.
November 12: Palindrome date DD-MM-YY and YY.MM.DD.
December 2: Palindrome date MM/DD/YYYY and YYYY.MM.DD.
December 11: Palindrome date MM/DD/YY, double date MM/DD/YY and YY.MM.DD.
December 22: Palindrome date MM/DD/YY, double date MM/DD/YY and YY.MM.DD.
On March 20, I am going to give a (online) workshop on parsing. The workshop
will start of with a overview of parsing and than explain the decision I took
for implementing IParse. In
the second part of the workshop, will consist of writing some simple grammar
for IParse and test it on input. I am thinking about discussing RawParser, a reimplementation of IParse in 'raw' C, in the last part of
the workshop. In the past months I have been working on RawParser and trying to
add extensive documents to explain how it works, but I do not feel very happy
about all the restrictions that C imposes on the order and level of detail
you have to provide. A few days ago, I came across Build Your Own Text Editor and was rather charmed by it approach. It is
generated from a collection of Markdown files and a steps.diff file with the help of a program
called leg. This made me
thinking about using Markdown as the primary source of the code and write a
program to generate a C program from a collection of Markdown files. I think it
is possible to make the program smart enough to reorder the Markdown code
fragments and to allow a mechanism for extending the code without having to
include many instructions where to include which piece of the code as in
CWEB, a computer programming
system created by Donald Knuth and Silvio Levy as a follow-up to Knuth's WEB
literate programming system. I have started this approach on
RawParser/doc/grammar.md file. As a positive side effect, working
on this did result into some improvement of
Yesterday, on the news there was an issue about how today a snow front would go over the country from the west to the east. Yesterday
morning, I already saw some small snow specks fall from the sky, some of which
stayed on the roofs of the houses. In the evening, I made some curly kail hotchpotch (with no fried pork but with smoked sausage). Only
in the evening, it started to snow and some of it on the roads. At least about
2.5cm of snow fell during the evening, based on my own measurement. The coming
days the temperature is going to rise and the snow is expected to quickly melt
The authorities reported that the spread of the VUI - 202012/01COVID-19 variant in
the Netherlands is no longer contained. They estimate that now about 10% of the
COVID cases are the VUI - 202012/01 variant. I am not surprised about this. The
authorities have over and over failed in this respect. They are expecting that
by April it will be the dominant variant leading to next wave and advising the
government to take new measures. The government is thinking about a curfew from
20:00 till 4:00. The experts of the RIVM should have realized that the new variants with higher infection
rates were to arise and plan ahead to counter this. As far as I know, they did
not do anything. They even did not enough screening of variants to detect the
development of mutations. And once the new variant was discovered, they failed
to scale up testing to contain this variant. It seems that they only thing
they did was to estimate the spread of the new variant in order that they
could adise the government with respect to measures to be taken. That can be
seen as a clever strategy to avoid their primary responsibility to contain the
spread of infectious diseases. Over and over again our government has failed
to contain the spread of the virus by means of testing and contact research. It
is only since a few months that people who do not have symptoms can be tested.
This months interesting links