Bug #8828: regex matching not correct

• Status: Rejected
• Assignee: -
• Target version: -
• ruby -v: 2.0.0-p247
• Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN

[jjyr (Jinyang Jiang)]

str = " [1]: http://google.com/ "Google""

str =~ /\A\s*[(.+)]:\ (\S+)\s*((?<=").+(?="))/
#=> nil

#then i replace this part '(?<=").+(?=")' with '.+'

str =~ /\A\s*[(.+)]:\ (\S+)\s*(.+)/
#=> 0

$3
#=> ""Google""

$3 =~ /((?<=").+(?="))/
#=> 6

$1

=> "Google"

it can matching now! but i just replace a part of regex with .+, then retry the part, it should not matching? (or it should work at beginning)

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Rejected

Your bug.
Lookbehind matches the preceding part, which matches \s* in your regexp.