On 16 February 2011 03:41, Rob Biedenharn <[email protected]> wrote: > > On Feb 15, 2011, at 10:12 PM, Keith Raymond wrote: > >> I can't figure out why this regexp isn't working in my rails method. >> I've been testing it with the the firefox regular expression tester add >> on and it works there but not in the rails app. >> >> My expression is: /\Q[img['\E/ >> I'm trying to match: [img[' > > irb> /\[img\['/ =~ "[img['" > => 0 > > You need to ecsape the [ characters as they introduce a character set, e.g., > [a-z] or [0-9] or even [img] to match any of 'i', 'm', or 'g'.
It have noticed previously that some regexp engines are clever enough to work out that a mismatched [ does not need to be escaped, which is likely why it appeared to work in FF. I would have thought though that something that purports to be a 'tester' should enforce the rules rigorously. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
