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35 lines
803 B
Ruby
35 lines
803 B
Ruby
# -*- mode: ruby -*-
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require 'nokogiri'
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require 'open-uri'
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doc = Nokogiri::HTML(URI.open('https://www.timeanddate.com/time/zones/'))
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h = {}
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doc.css('#tz-abb tbody tr').each do |tr|
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tds = tr.css('td')
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abbr = tds[0].text.strip.downcase
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offset = tds[3].text.strip.gsub(/UTC\s*/, '')
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next if offset.include?('/') # skip ambiguous timezones
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next if offset.empty?
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hour, min = offset.split(':', 2)
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offset = (Integer(hour) * 60 + (Integer(min || 0)))*60
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if h.has_key?(abbr)
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h[abbr] = false
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else
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h[abbr] = offset
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end
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end
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h.delete_if{|_,v| !v}
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lines = File.readlines('zonetab.list')
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lines.select{|l| l.include?(',')}.
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map{|l| l.split(',', 2)[0]}.
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each{|a| h.delete(a)}
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lines.insert(-2, h.sort.map{|k,v| "#{k},#{v}\n"})
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lines.flatten!
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File.write('zonetab.list', lines.join)
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