2013-04-09T14:45:25-07:00 http://jmettraux.github.com/ John Mettraux jmettraux@gmail.com 2013-04-06T00:00:00-07:00 https://jmettraux.github.com/onedim-automata “There are a bunch of small worlds, from above, they look like circles, from a level point of view, they look somehow like 0 1 0 0 1 0 1 0” I started my mini-talk at Hiroshima.rb #31 by writing 0s and 1s on the whiteboard. I’m reading Complexity,... 2013-03-06T00:00:00-08:00 https://jmettraux.github.com/rufus-scheduler-2.0.18 This in-process block scheduling library just reached version 2.0.18. Here is the changelog: - support for "L" in cron lines (Thanks Andrew Davey) - reject invalid weekdays (Thanks pazustep) - support for negative time strings (Thanks Danny "northox" Fullerton) The first two changes are centered around the “cron” feature... 2013-03-04T00:00:00-08:00 https://jmettraux.github.com/papertrail On Saturday, I presented a few slides about PaperTrail at Hiroshima.rb. Not very Ruby-centric, but people were intrigued by a solution centralizing logs and providing excellent tools for accessing them.   // nada   The other talks went from the subtleties of Symbol in Ruby 2.0 to a very... 2013-02-28T00:00:00-08:00 https://jmettraux.github.com/neg Neg 1.1.0 is out. Neg is a small PEG parser library, very un-awesome and naive. One could say it’s a small brother of Parslet. The bulk of the work from 1.0.0 to 1.1.0 was the removal of the “UnconsumedInputError”. Consider this parser: class BlockParser < Neg::Parser parser do blocks... 2013-01-16T00:00:00-08:00 https://jmettraux.github.com/neg Neg is a neg narser, it could have been a peg parser, but it didn’t make it to the exam. I worked with Parslet a lot and at some point, tried to contribute to it (and failed). Neg is born out of the residual energy of those efforts. I... 2013-01-04T00:00:00-08:00 https://jmettraux.github.com/fenced-code-blocks Please ignore. ruby 10.times { puts "nada" } and bash cat file file.txt | grep stuff Second try. 2012-12-20T00:00:00-08:00 https://jmettraux.github.com/ruote-and-the-await-attribute tl;dr ruote has got a new “await” attribute (can be placed on any expression) that suspends the application of the expression until a condition (entering or leaving a tag or a participant) realizes. Useful when expressing graphs. (with an update thanks to Larry Marburger)   Ruote is a Ruby... 2012-09-03T00:00:00-07:00 https://jmettraux.github.com/ruote-2.3.0 Just released version 2.3.0 of ruote, a workflow engine for Ruby. The last release was beginning March 2011, it was the 2.2.0. Many things happened, I couldn’t find the time to release a new version, although the developement was very active. Blame it on Bundler, it makes it so... 2012-05-07T00:00:00-07:00 https://jmettraux.github.com/fear-of-a-new-line A friend made me a compliment the other day, describing my code as “clean”. I was fortunate to discover he referred both to its immediate appearance and to its structure. This post details the “style” as in “Ruby style guide” I’m following/expressing. Writing a blog post about the rest,... 2011-10-28T00:00:00-07:00 https://jmettraux.github.com/rufus-scheduler-2.0.12 rufus-scheduler is a thread-based scheduler written in Ruby. It lets you write code like: require 'rufus-scheduler' s = Rufus::Scheduler.start_new s.every '10m' do puts 'open the window for the cat' end s.at '2012-01-01 12:00' do puts 'reminder: wife's birthday' end s.cron '0 22 * * 1-5' do puts 'activate the... 2011-05-11T00:00:00-07:00 https://jmettraux.github.com/parslet-and-json Parslet is a small Ruby library for constructing parsers based on Parsing Expression Grammars (PEG). It’s written by Kaspar Schiess and various contributors. This blog post introduces Parslet with a parser example. Since JSON has very easy to grasp railroad diagrams for its syntax, it might make for a...