http://man7.org/linux/man-pages/man1/grep.1.html
On Wed, Aug 1, 2018 at 7:01 AM, Gordin, Ira <ira.gor...@sap.com> wrote: > Hi Tomoko, > > I need to search in many files and we use Lucene for this purpose. > > Thanks, > Ira > > -----Original Message----- > From: Tomoko Uchida <tomoko.uchida.1...@gmail.com> > Sent: Wednesday, August 1, 2018 1:49 PM > To: java-user@lucene.apache.org > Subject: Re: Search in lines, so need to index lines? > > Hi Ira, > >> I am trying to implement regex search in file > > Why are you using Lucene for regular expression search? > You can implement this by simply using java.util.regex package? > > Regards, > Tomoko > > 2018年8月1日(水) 0:18 Gordin, Ira <ira.gor...@sap.com>: > >> Hi Uwe, >> >> I am trying to implement regex search in file the same as in editors, in >> Notepad++ for example. >> >> Thanks, >> Ira >> >> -----Original Message----- >> From: Uwe Schindler <u...@thetaphi.de> >> Sent: Tuesday, July 31, 2018 6:12 PM >> To: java-user@lucene.apache.org >> Subject: RE: Search in lines, so need to index lines? >> >> Hi, >> >> you need to create your own tokenizer that splits tokens on \n or \r. >> Instead of using WhitespaceTokenizer, you can use: >> >> Tokenizer tok = CharTokenizer. fromSeparatorCharPredicate(ch -> ch=='\r' >> || ch=='\n'); >> >> But I would first think of how to implement the whole thing correctly. >> Using a regular expression as "default" query is slow and does not look >> correct. What are you trying to do? >> >> Uwe >> >> ----- >> Uwe Schindler >> Achterdiek 19, D-28357 Bremen >> http://www.thetaphi.de >> eMail: u...@thetaphi.de >> >> > -----Original Message----- >> > From: Gordin, Ira <ira.gor...@sap.com> >> > Sent: Tuesday, July 31, 2018 4:08 PM >> > To: java-user@lucene.apache.org >> > Subject: Search in lines, so need to index lines? >> > >> > Hi all, >> > >> > I understand Lucene knows to find query matches in tokens. For example >> if I >> > use WhiteSpaceTokenizer and I am searching with /.*nice day.*/ regular >> > expression, I'll always find nothing. Am I correct? >> > In my project I need to find matches inside lines and not inside words, >> so I >> > am considering to tokenize lines. How I should to implement this idea? >> > I'll really appriciate you have more ideas/implementations. >> > >> > Thanks in advance, >> > Ira >> > >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > -- > Tomoko Uchida --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
