I prefer [\\]. It does the same, but you don't need additional escaping. 2012/9/8 Bill Graham <[email protected]>
> To get \ in a regex you need to escape it to \\, since the slash is > reserved in the regex. Then each slash needs to be escaped again to be used > in a java string. Hence \\\\. Painful, yes. > > > On Fri, Sep 7, 2012 at 2:06 PM, Danfeng Li <[email protected]> wrote: > > > Hi, > > > > I'm little bit puzzled about REPLACE when there is backslash involved. > > > > I want to replace all the "dir" in the string with "\\test\sub", > > > > After a lot of try and error, I finally got it done, but I'm not sure why > > it is the case. Here's my code > > > > A = load 'a.txt' as (name:chararray); > > B = foreach A generate REPLACE(name,'dir','\\\\\\\\test\\\\sub'); > > dump B; > > > > The thing I'm confused about is why do I need to use "\\\\" in order to > > generate a "\", can anyone explain the reason? I'm using pig 0.9.1. > > > > Thanks. > > > > Dan > > > > > > -- > *Note that I'm no longer using my Yahoo! email address. Please email me at > [email protected] going forward.* > -- Best regards, Vitalii Tymchyshyn
