diff options
author | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
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committer | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
commit | 0dc342de848a642ecce8db697b8fecd83a63e117 (patch) | |
tree | 2b7ed4724aff1f86073e4740134bda9c4aac1a39 /trunk/lib/rexml/syncenumerator.rb | |
parent | ef70cf7138ab8034b5b806f466e4b484b24f0f88 (diff) |
added tag v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'trunk/lib/rexml/syncenumerator.rb')
-rw-r--r-- | trunk/lib/rexml/syncenumerator.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/trunk/lib/rexml/syncenumerator.rb b/trunk/lib/rexml/syncenumerator.rb new file mode 100644 index 0000000000..11609bdf3d --- /dev/null +++ b/trunk/lib/rexml/syncenumerator.rb @@ -0,0 +1,32 @@ +module REXML + class SyncEnumerator + include Enumerable + + # Creates a new SyncEnumerator which enumerates rows of given + # Enumerable objects. + def initialize(*enums) + @gens = enums + @length = @gens.collect {|x| x.size }.max + end + + # Returns the number of enumerated Enumerable objects, i.e. the size + # of each row. + def size + @gens.size + end + + # Returns the number of enumerated Enumerable objects, i.e. the size + # of each row. + def length + @gens.length + end + + # Enumerates rows of the Enumerable objects. + def each + @length.times {|i| + yield @gens.collect {|x| x[i]} + } + self + end + end +end |