tcpip: (Default)
Diary of a B+ Grade Polymath ([personal profile] tcpip) wrote2019-04-15 05:17 pm
Entry tags:

RegEx, Studies, Entertainment

For a good portion of the past few days I've been working on a workshop on Regular Expressions, which are truly one of the greatest things imaginable when one starts with plain-text data and wants to build information. The workshops starts with a bit of the historical-mathematical aspects, revising some of searching with grep, subsitution with sed, and reporting with awk before moving into incorporating these in shell scripts. This is all parts of my introductory and advanced Linux workshops, which is what most people need. Then one delves into things like POSIX basic and extended regular expressions, grouping, backreferences, alternation. Then there's perl's own regular expression syntax which includes features like lookarounds, backtracking, named capture groups and even more - but for a four-hour workshop there are limits. The further one goes down this path the more complex the syntax becomes and more is tempted by the verbose, but clear, Simple Regex Language.

Naturally enough in the excess of spare time available, I've been continuing my studies and research. Research-wise there is another paper in the works for the HPC Certification forum in the Journal of Computational Science Education, plus there will be a BoF at the International Supercomputing Conference. Study-wise, most of the work has been in economics, but with a moderate amount for the higher education and information systems course. For the latter, I received a mid-term grade back this morning which I am less than happy with - it's a solid pass and all, but it's several percent below what I am used to and mainly because the tutor has assessed me on their criteria, rather than the advertised criteria. I will be putting in an appeal at the end of the course, regardless of what my final mark is. That sort of mistake needs to go on their record.

Speaking of records, last weekend was Record Store Day and [livejournal.com profile] caseopaya and I took the oportunity to visit Dutch Vinyl. There was quite a good selection of collectibles there with a moderate price-tag. I fell down the prog-rock path and picked up Hawkwind's Space Ritual, a truly great album for the original space rockers, and The Pentateuch of the Cosmogony, an early multi-media effort (art, book, music). It dove-tailed quite well with the weekend's session of Eclipse Phase which mostly involved debates of what to do about an increasingly powerful hive-mind of scientists and technicians who have acquired psychic powers and a double-agent within the group.