I think that here strings are parsed in a way to make the line-separator difference not matter too. Maybe that works best for you?
http://docs.racket-lang.org/reference/reader.html#%28idx._%28gentag._54._%28lib._scribblings%2Freference%2Freference..scrbl%29%29%29 Robby On Sat, Jun 21, 2014 at 1:25 AM, Jos Koot <jos.k...@gmail.com> wrote: > Thanks Robby, that's clear. > I often copy results from the interactions window to the definitions window > of DrRacket. > After reverting my preference file to defaults and reselecting my personal > preferences, the problem has disappeared. > Nevertheless I'll avoid the problem for the future. Four options I think: > 1: stick to your string-append advice. > 2: @ notation of scribble (which I have to try out yet, but may well be > preferable) > 3: replace all newlines in strings by \n (not nice for it makes the text > less readable) > 4: my trick to remove #\return from strings before comparing them. > Thanks, Jos > > >> -----Original Message----- >> From: Robby Findler [mailto:ro...@eecs.northwestern.edu] >> Sent: sábado, 21 de junio de 2014 0:51 >> To: Alexander D. Knauth >> Cc: Jos Koot; users >> Subject: Re: [racket] newlines in strings not the same in >> DrRacket and Racket >> >> The issue is probably that the file is being saved with CRLF. When the >> file is opened in DrRacket, DrRacket always treats newlines like that >> as if there were the "\n" character. But when racket reads the file it >> just puts whatever bytes are in the saved file into the string. >> >> The best path forward: don't use actual newlines in literals (like >> strings). Instead write things like: >> >> (string-append "first line\n" "second-line\n") >> >> Or use scribble's @ notation. >> >> Robby >> >> >> On Fri, Jun 20, 2014 at 5:20 PM, Alexander D. Knauth >> <alexan...@knauth.org> wrote: >> > Or are you using different editors? Different editors >> might use different >> > conventions for representing newlines. >> > >> > When the 32 bit one has the problem, what does it say? >> > >> > For example when I made the text file with DrRacket or >> TextEdit but ran it >> > with racket (not DrRacket), it worked, >> > but when I made the text file with Microsoft Word, it gave me this: >> > $ racket newline-3.txt >> > (format "~n") = "\n" >> > " >> > " = "\r" >> > Ran 1 check. >> > 0 checks passed. >> > Actual value >> > , the expected value. >> > In newline-3.txt at line 7 column 0 >> > >> > On Jun 20, 2014, at 5:14 PM, Jos Koot <jos.k...@gmail.com> wrote: >> > >> > Very strange. >> > I did the same on my other computer and there it has the >> same problem as >> > before. >> > I use windows 7 on both systems one with 64 bit OS and one >> with 32 bit OS. >> > The 64 bit version does well, the 32 bit windows 7 system >> has the problem. >> > May be my preferences? >> > Thanks, Jos >> > >> > -----Original Message----- >> > From: Jos Koot [mailto:jos.k...@gmail.com] >> > Sent: viernes, 20 de junio de 2014 23:03 >> > To: 'Alexander D. Knauth' >> > Cc: 'users'; 'Jos Koot' >> > Subject: RE: [racket] newlines in strings not the same in >> > DrRacket and Racket >> > >> > Gives me >> > >> > (format "~n") = "\n" >> > " >> > " = "\n" >> > The only test passed! >> > >> > both in DrRacket and Racket. >> > Very surprising. Can you explain what happens here? >> > I don't have a clue. >> > Thanks, >> > Jos >> > >> > >> > ________________________________ >> > >> > From: Alexander D. Knauth [mailto:alexan...@knauth.org] >> > Sent: viernes, 20 de junio de 2014 22:41 >> > To: Jos Koot >> > Cc: users >> > Subject: Re: [racket] newlines in strings not the same >> > in DrRacket and Racket >> > >> > >> > This doesn't exactly solve your problem, but what >> > happens (for both cases) when you do this?: >> > #lang racket >> > (require test-engine/racket-tests) >> > (display "(format \"~n\") = ") (format "~n") >> > (display "\"") (newline) >> > (display "\" = ") " >> > " >> > (check-expect (format "~n") " >> > ") >> > (test) >> > (void (read-line)) ; wait until the user has read the results. >> > >> > On Jun 20, 2014, at 3:02 PM, Jos Koot >> > <jos.k...@gmail.com> wrote: >> > >> > >> > Running the following in DrRacket goes well. >> > >> > #lang racket >> > (require test-engine/racket-tests) >> > (check-expect (format "~n") " >> > ") >> > (test) >> > (read-line) ; wait until the user has read the results. >> > >> > Displays: The only test passed! >> > >> > But running the same with Racket tells me the >> > test fails. >> > I have a solution for this by removing #\return >> > from the strings to be >> > compared. >> > >> > Question though: Can I solve this problem in a >> > simpler way? >> > May be I overlooked something in the docs? >> > >> > Best wishes, Jos >> > >> > >> > ____________________ >> > Racket Users list: >> > http://lists.racket-lang.org/users >> > >> > >> > >> > >> > >> > >> > >> > ____________________ >> > Racket Users list: >> > http://lists.racket-lang.org/users >> > > ____________________ Racket Users list: http://lists.racket-lang.org/users
