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SteveBenner/fname_incr.rb

Created May 6, 2014 03:26
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Function which returns a given filename or the incremented version thereof
Raw
fname_incr.rb
def fname_incr(fname)
!File.exists?(fname) ?
fname :
/([0-9]+)\./.match(fname) ?
fname_incr(fname.sub(/([0-9]+)/) { |m| (m.to_i+1).to_s }) :
fname_incr(fname.sub(/[^\.]*/) { |m| m+'1' })
end
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