[BUG] greedy gsub

[Ara.T.Howard]

this looks like a bug to me:


~/eg/ruby > cat bug.rb

# greedy gsub works fine a bos
k1, p1 = '=foo', %r/^(=*)/
p(p1.match(k1).to_a)
p(k1.gsub(p1, '!'))

# greedy gsub fails at eos
k0, p0 = 'foo=', %r/(=*)$/
p(p0.match(k0).to_a)
p(k0.gsub(p0, '!'))

~/eg/ruby > ruby bug.rb

["=", "="]
"!foo"
["=", "="]
"foo!!"

~/eg/ruby > ruby -v
ruby 1.8.0 (2003-10-15) [i686-linux]



-a
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[ts]

A> this looks like a bug to me:

no, no

A> k0, p0 = 'foo=', %r/(=*)$/
A> p(p0.match(k0).to_a)
A> p(k0.gsub(p0, '!'))

first match because there is `=' at the end
second match because the empty patterm /=*/ match at end



Guy Decoux