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111 lines
2.4 KiB
Ruby
111 lines
2.4 KiB
Ruby
#! /usr/bin/env ruby
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# cal.rb: Written by Tadayoshi Funaba 1998-2002
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# $Id: cal.rb,v 2.4 2002-06-08 00:40:29+09 tadf Exp $
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require 'date'
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require 'getopts'
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$tab =
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{
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'cn' => true, # China
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'de' => 2342032, # Germany (protestant states)
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'dk' => 2342032, # Denmark
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'es' => 2299161, # Spain
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'fi' => 2361390, # Finland
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'fr' => 2299227, # France
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'gb' => 2361222, # United Kingdom
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'gr' => 2423868, # Greece
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'hu' => 2301004, # Hungary
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'it' => 2299161, # Italy
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'jp' => true, # Japan
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'no' => 2342032, # Norway
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'pl' => 2299161, # Poland
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'pt' => 2299161, # Portugal
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'ru' => 2421639, # Russia
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'se' => 2361390, # Sweden
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'us' => 2361222, # United States
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'os' => false, # (old style)
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'ns' => true # (new style)
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}
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$cc = 'gb'
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def usage
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warn 'usage: cal [-c iso3166] [-jmty] [[month] year]'
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exit 1
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end
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def pict(y, m, sg)
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d = (1..31).detect{|d| Date.valid_date?(y, m, d, sg)}
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fi = Date.new(y, m, d, sg)
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fi -= (fi.jd - $k + 1) % 7
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ve = (fi..fi + 6).collect{|cu|
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%w(S M Tu W Th F S)[cu.wday]
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}
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ve += (fi..fi + 41).collect{|cu|
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if cu.mon == m then cu.send($da) end.to_s
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}
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ve = ve.collect{|e| e.rjust($dw)}
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gr = group(ve, 7)
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gr = trans(gr) if $OPT_t
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ta = gr.collect{|xs| xs.join(' ')}
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ca = %w(January February March April May June July
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August September October November December)[m - 1]
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ca = ca + ' ' + y.to_s if not $OPT_y
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ca = ca.center($mw)
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ta.unshift(ca)
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end
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def group(xs, n)
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(0..xs.size / n - 1).collect{|i| xs[i * n, n]}
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end
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def trans(xs)
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(0..xs[0].size - 1).collect{|i| xs.collect{|x| x[i]}}
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end
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def unite(xs)
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if xs.empty? then [] else xs[0] + unite(xs[1..-1]) end
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end
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def block(xs, n)
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unite(group(xs, n).collect{|ys| trans(ys).collect{|zs| zs.join(' ')}})
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end
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def unlines(xs)
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xs.collect{|x| x + "\n"}.join
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end
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usage unless getopts('jmty', "c:#{$cc}")
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y, m = ARGV.values_at(1, 0).compact.collect{|x| x.to_i}
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$OPT_y ||= (y and not m)
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to = Date.today
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y ||= to.year
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m ||= to.mon
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usage unless m >= 1 and m <= 12
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usage unless y >= -4712
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usage if (sg = $tab[$OPT_c]).nil?
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$dw = if $OPT_j then 3 else 2 end
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$mw = ($dw + 1) * 7 - 1
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$mn = if $OPT_j then 2 else 3 end
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$tw = ($mw + 2) * $mn - 2
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$k = if $OPT_m then 1 else 0 end
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$da = if $OPT_j then :yday else :mday end
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print(if not $OPT_y
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unlines(pict(y, m, sg))
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else
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y.to_s.center($tw) + "\n\n" +
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unlines(block((1..12).collect{|m| pict(y, m, sg)}, $mn)) + "\n"
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end)
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