From: Tanaka Akira <akr@...17n.org>
Date: 2001-12-12T15:11:22+09:00
Subject: [ruby-list:32889] Re: newdate

In article <20011210180612F.tadf@funaba.org>,
  tadf@kt.rim.or.jp writes:

> $B$=$&$G$9$M$(!#JLL>$r9M$($F$_$^$7$g$&$+!#H=$j0W$/0l4S@-$N$"$kJLL>Jg=8!#(B

$B$H$j$"$($:!"(B

  new* $B$H$$$&L>A0$O(B($BIT;W5D$J$3$H$K(B)$B%3%s%9%H%i%/%?$K8+$($J$$(B

$B$H$$$&8D?ME*$J463P$K$h$j(B new $B$G;O$^$k(B(new $B0J30$N(B)$B%/%i%9%a%=%C%I$K$OJL(B
$BL>$,M_$7$$$H;W$C$F$$$^$9!#(B

new1    jd $B$J$$$7$O(B julian_date
new2    yday $B$J$$$7$O(B ordinal
neww    cweek $B$J$$$7$O(B commercial
newp    parse
(new3   civil)

$B>p=o$b$X$C$?$/$l$b$J$$$G$9$,!"FCD'E*$J%$%s%9%?%s%9%a%=%C%I$NL>A0$rN.MQ(B
$B$7$F$^$9!#(Bordinal, civil, commersial $B$,$I$NDxEY0lHLE*$JMQ8l$J$N$+$o$+(B
$B$i$J$+$C$?$N$G$9$,!"0lHLE*$JMQ8l$J$i(B yday $B$d(B cweek $B$h$j$b$=$C$A$N$[$&(B
$B$,$$$$$H;W$$$^$9!#$J$*!"(Bnew3 $B$K$O$9$G$K(B new $B$H$$$&JLL>$,$"$j!"$3$l$OE,(B
$B@Z$@$H;W$&$N$G(B civil $B$OFC$KM_$7$$$H$$$&$o$1$G$O$"$j$^$;$s$,!"BP>N@-$+(B
$B$i0l1~$"$2$F$"$j$^$9!#(B

fr1, fr2 $B$O?t;z$G$OCf?H$,A[A|$G$-$J$$$N$GJLL>$,M_$7$$$G$9!#(B

fr1     day_fraction
fr2     sec_fraction

$B$"$H!"(Bof $B$O;d$K$H$C$F>JN,$,7c$7$9$.$k$N$G$3$l$bJLL>$,M_$7$$$G$9!#(B

of      offset, utcoff, gmtoff
newof   $B$&$^$$$N$,;W$$$D$+$J$$(B... $B$I$s$JL>A0$,$$$$$@$m$&(B?

exist* $B$b(B new* $B$HF1MM$K$I$l$+$J$s$@$+$h$/$o$+$i$J$$$N$H!"JV$9$b$N$,(B
true/false $B$8$c$J$$$N$K(B ? $B$,$D$$$F$k$N$O5$$K$/$o$J$$$N$H!"$J$s$+(Bexist
$B$H$$$&$N$O463P$K9g$o$J$$$N$GBeBX0F$H$7$F(B check $B$J$$$7$O(B valid $B$r$"$2$k(B
$B$H!"$3$s$J46$8$G$9!#(B

exist1? {exist,check,valid}_jd
exist2? {exist,check,valid}_{yday,ordinal}
exist3? {exist,check,valid}_civil
existw? {exist,check,valid}_{cweek,commercial}

$B$"$H!"(Bos, ns, sg $B$C$F$J$s$NN,$J$s$G$7$g$&(B?
$B$?$V$s!"(Bo $B$,(B older, n $B$,(B newer $B$G!"(B3$B$D$N(B s $B$,F1$8$b$N$G$"$m$&$H$$$&$H(B
$B$3$m$^$G$O$o$+$k$s$G$9$,(B...
-- 
[$BEDCf(B $BE/(B][$B$?$J$+(B $B$"$-$i(B][Tanaka Akira]
$B!V$U$($m(B! $B$o$+$a$A$c$s:n@o$G$9$(C"=$B!W(B(Little Worker, $B7KM7@84](B)