mvidner

#!/usr/bin/ruby

# parser-2.3.0.2 fails with fatal: unterminated string meets end of file
# ruby makebigfile.rb && ruby bigfile.rb && bundle exec ruby-parse --23 bigfile.rb

SIZE = 14500

header = <<EOS
#!/usr/bin/ruby
# encoding: utf-8

mvidner

Signal handling and Ruby

Salvaged from Google Cache of http://www.lps-it.fr/blog/20151218-signal-handling-and-ruby.html

December 18, 2015
Linux Ruby

Since version 2.0.0, signal handling in Ruby can be tricky. I bet if you're here, it's because you've seen this error message :

mvidner

  #propose
    proposes timeout to 8 seconds
    proposes gfx mode to auto
    proposes to disable recovery boot entry
    proposes empty distributor entry
    proposes serial console from its usage on kernel command line
    os_prober proposal
      on s390
        disable os probing
      on Power PC

mvidner

#!/bin/sh
ruby app.rb
ruby-lint -c cfg-top.yml    app.rb
ruby-lint -c cfg-nested.yml app.rb
exit

# the definitions were made like this
rake -r project-base generate:definitions[Project,.];     mv project.rb defs-project.rb
rake -r project-ui   generate:definitions[Project,.];     mv project.rb defs-ui-top.rb
rake -r project-ui   generate:definitions[Project::UI,.]; mv project.rb defs-ui-nested.rb

mvidner

#!/usr/bin/ruby
# Ruby Gotcha Quiz, by Martin Vidner
# Aimed at people who have written something in Ruby already

def command(s)
  system(s)
end

command   "echo A"

mvidner

# a dead stupid profiler/debugger
# usage: ruby -r .../trace_func_profiler.rb my_program.rb
set_trace_func proc { |event, file, line, id, binding, classname|
  unless ["line"].include? event
      m = "#{classname}.#{id}"
      t = Time.now.strftime("%H:%M:%S.%4N")
      printf "%s|%8s %s:%-2d %s\n", t, event, file, line, m
  end
}

mvidner

#!/usr/bin/ruby

require "fileutils"
require "pathname"

include FileUtils

FILTER_OUT_RES = [
  "warning: PO file header fuzzy",
  "warning: older versions of msgfmt will give an error on this",

mvidner

#!/usr/bin/ruby
# coding: utf-8

def char_as_4hex(c)
  format("%04x", c.ord)
end

REPLACEMENT = "\ufffd"          # �
FSI = "\u2068"                  # First Strong Isolate
PDI = "\u2069"                  # Pop Directional Isolate

mvidner

Vega is the second brightest star in the northern celestial hemisphere. Its name comes from the Arabic name "wāqi‘" (an-nasr al-wāqi‘), meaning "falling" (falling eagle). In the Arabic script, it is واقع (النسر الواقع).

Note how the parenthesized phrase ends up in the middle of the sentence, even though it should go at the end like this:

In the Arabic script, it is WAQE (ALNASR ALWAQE).

(Must include screenshots, because all renderers have their own incompatible sets of bugs)

mvidner

/*
 *  Copyright (c) 2014 Angelo Naselli <anaselli@linux.it>
 * 
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions: