From: PeJaMa@... (Marcus Heyking)
Date: 2004-03-17T18:29:32+09:00
Subject: Re: ruby 1.8.1/cygwin: Writing text files (dos mode) broken?

paul.rogers@shaw.ca (Paul) wrote in message news:<4ee21163.0403161635.22d739f2@posting.google.com>...
> PeJaMa@web.de (Marcus Heyking) wrote in message news:<2b3b40bb.0403160853.639303b7@posting.google.com>...
> > I was recently running some tests before switching to ruby 1.8.1 on cygwin. I
> > found one problem that currently keeps me from installing ruby 1.8.1:
> > 
> > When writing text files they end up as unix files even though I explicitly
> > told setup.exe to use dos mode: 
> > 
> > f = File.new("test.txt","w")
> > f.puts("Where \n is the CR?")
> > f.close
> > 
> > Running above script on ruby 1.8.1 will create test.txt with only 0x0a (LF) 
> > as line delimiter. When using ruby 1.6.8 this correctly creates a dos-like 
> > text file (CR+LF)
> > 
> > My ruby app (a build engine) creates c/cpp headers and resource files to be 
> > used by cl.exe and friends - and some of them won't accept unix style files.
> > 
> > Maybe someone could verify/comment on that? Did I miss something here? IMHO 
> > line ending conversion should still be transparent to ruby scripts?
> > 
> > ps. Actually I think this is caused by io.c:line 4087 where cygwin_internal()
> > is used to unconditionally set file IO to binmode!?
> 
> 
> when installing cygwin you get the option to select the file type -
> unix or msdos - could you have set this and now ruby is correctly
> creating unix style files?

No, I was definitely using dos-mode when I installed cygwin. 

As mentioned before - I was already looking a bit further and I assume that 
this happens because now (since 1.8.x) _all_ file IO is done in binmode for
cygwin. IMHO this is what prevents the cygwin library from handling line 
ending conversion. 

If I write a file in C,bash,perl (also just using \n in strings) they 
do have DOS lineendings!