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-rw-r--r--lib/diff/lcs.rb9
1 files changed, 4 insertions, 5 deletions
diff --git a/lib/diff/lcs.rb b/lib/diff/lcs.rb
index d8b6f08..5cb58ed 100644
--- a/lib/diff/lcs.rb
+++ b/lib/diff/lcs.rb
@@ -221,13 +221,12 @@ class << Diff::LCS
def lcs(seq1, seq2, &block) #:yields seq1[i] for each matched:
matches = Diff::LCS::Internals.lcs(seq1, seq2)
ret = []
+ string = seq.kind_of? String
matches.each_with_index do |e, i|
unless matches[i].nil?
- if block_given?
- ret << (yield seq1[i])
- else
- ret << seq1[i]
- end
+ v = string ? seq1[i, 1] : seq1[i]
+ v = block[v] if block
+ ret << v
end
end
ret