Dear Enrico, Many thanks and Best Regards,
Ashim. On Thu, Jun 8, 2017 at 5:11 PM, Enrico Schumann <e...@enricoschumann.net> wrote: > > Zitat von Ashim Kapoor <ashimkap...@gmail.com>: > > > Dear All, >> >> My query is: >> >> Do we always need to use perl = TRUE option when doing ignore.case=TRUE? >> >> A small example : >> >> my_text = >> "RECOVERY OFFICER-II\nDEBTS RECOVERY TRIBUNAL-III\n RC No. 162/2015\nSBI >> VS RAMESH GUPTA.\n Dated: 01.03.2016 Item no.01\n >> Present: Ms. Sonakshi, the proxy counsel for Ms. Usha Singh, the counsel >> for ARCIL.\n None for the CDs.\n The counsel for the CHFI >> submitted that the matter has been assigned to ARCIL and deed of >> assignment, application for substituting the name and vakalatnama has been >> filed vide diary no. 1454 dated 08.02.2016\nIn the application it has been >> prayed that ARCIL may be substituted in place of SBI for the purpose of >> further proceedings in the matter. Request allowed.\nThe proxy counsel for >> CHFI further requested to issue demand notice thereby mentioning the name >> of ARCIL. Request allowed.\nRegistry is directed to issue fresh demand >> notice mentioning the name of ARCIL.\nCHFI is directed to file status of >> the mortgaged property as well as other assets of the CDs.\nList the case >> on 28.03.2016.\n (SUJEET KUMAR)\nRECOVERY OFFICER-II." >> >> My regular expression is: >> >> parties_present_start_1= >> regexpr("\n.*Present.*\n.*\n",my_text,ignore.case=TRUE,perl=T) >> >> parties_present_start_2= >> regexpr("\n.*Present.*\n.*\n",my_text,ignore.case=TRUE) >> >> parties_present_start_1 >>> >> [1] 138 >> attr(,"match.length") >> [1] 123 >> attr(,"useBytes") >> [1] TRUE >> >>> parties_present_start_2 >>> >> [1] 20 >> attr(,"match.length") >> [1] 949 >> attr(,"useBytes") >> [1] TRUE >> >>> >>> >> Why do I see the correct result only in the first case? >> >> Best Regards, >> Ashim >> >> > In Perl, '.' matches anything but a newline. > > In R, '.' matches any character. > > test <- "hello\n1" > regexpr(".*[0-9]", test) > ## [1] 1 > ## attr(,"match.length") > ## [1] 7 > ## attr(,"useBytes") > ## [1] TRUE > > regexpr(".*[0-9]", test, perl = TRUE) > ## [1] 7 > ## attr(,"match.length") > ## [1] 1 > ## attr(,"useBytes") > ## [1] TRUE > > > -- > Enrico Schumann > Lucerne, Switzerland > http://enricoschumann.net > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.