Ruby 2.4.1 Released: What’s Changed
I’m going to quickly run through what’s different compared to Ruby 2.4.0 and why you should consider upgrading (or not). I’ve tried to put things into a rough order of priority or personal interest. Most of the changes are fixes for regressions, with the Onigmo regular expression engine update introducing the only new “feature” I could find. Ch-ch-changesOnigmo, the regular expressions library and
The New ‘Absent Operator’ in Ruby’s Regular Expressions
A slide from possibly the most intimidating slidedeck I’ve seen so far in 2017.Ruby 2.4.1 was released this week and included an upgrade to its underlying regular expression engine, Onigmo. The headline feature in this update was support for ‘the absent operator’ but what is this and what is it for? An issue on the Onigmo repository about the absent operator pointed to a 2007 Japanese academic pap
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