diff options
Diffstat (limited to 'lib/date.rb')
| -rw-r--r-- | lib/date.rb | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/lib/date.rb b/lib/date.rb index 58179a7153..3422121298 100644 --- a/lib/date.rb +++ b/lib/date.rb @@ -1,5 +1,5 @@ -# date.rb: Written by Tadayoshi Funaba 1998-2000 -# $Id: date.rb,v 1.22 2000-07-16 10:23:40+09 tadf Exp $ +# date2.rb: Written by Tadayoshi Funaba 1998-2001 +# $Id: date2.rb,v 1.23 2001-01-18 12:09:47+09 tadf Exp $ class Date @@ -128,16 +128,15 @@ class Date end if d < 0 ny, nm = clfloor(y * 12 + m, 12) - nm, = clfloor(m + 1, 1) - la = nil - 31.downto 1 do |z| - break if la = exist3?(y, m, z, sg) - end - ns = ns?(la, sg) - d = jd_to_civil(civil_to_jd(ny, nm, 1, ns) + d, ns)[-1] + nm, = clfloor(nm + 1, 1) + jd = civil_to_jd(ny, nm, d + 1, sg) + ns = ns?(jd, sg) + return unless [y, m] == jd_to_civil(jd, sg)[0..1] + return unless [ny, nm, 1] == jd_to_civil(jd - d, ns) + else + jd = civil_to_jd(y, m, d, sg) + return unless [y, m, d] == jd_to_civil(jd, sg) end - jd = civil_to_jd(y, m, d, sg) - return unless [y, m, d] == jd_to_civil(jd, sg) jd end @@ -154,16 +153,15 @@ class Date def exist2? (y, d, sg=ITALY) if d < 0 - ny = y + 1 - la = nil - 366.downto 1 do |z| - break if la = exist2?(y, z, sg) - end - ns = ns?(la, sg) - d = jd_to_ordinal(ordinal_to_jd(ny, 1, ns) + d, ns)[-1] + ny, = clfloor(y + 1, 1) + jd = ordinal_to_jd(ny, d + 1, sg) + ns = ns?(jd, sg) + return unless [y] == jd_to_ordinal(jd, sg)[0..0] + return unless [ny, 1] == jd_to_ordinal(jd - d, ns) + else + jd = ordinal_to_jd(y, d, sg) + return unless [y, d] == jd_to_ordinal(jd, sg) end - jd = ordinal_to_jd(y, d, sg) - return unless [y, d] == jd_to_ordinal(jd, sg) jd end |