<snip href="perldoc perlport"> ISSUES Newlines In most operating systems, lines in files are terminated by newlines. Just what is used as a newline may vary from OS to OS. Unix traditionally uses `\012', one type of DOSish I/O uses `\015\012', and Mac OS uses `\015'.
Perl uses `\n' to represent the "logical" newline, where what is logical may depend on the platform in use. In MacPerl, `\n' always means `\015'. In DOSish perls, `\n' usually means `\012', but when accessing a file in "text" mode, STDIO translates it to (or from) `\015\012', depend ing on whether you're reading or writing. Unix does the same thing on ttys in canonical mode. `\015\012' is com monly referred to as CRLF. Because of the "text" mode translation, DOSish perls have limitations in using `seek' and `tell' on a file accessed in "text" mode. Stick to `seek'-ing to locations you got from `tell' (and no others), and you are usually free to use `seek' and `tell' even in "text" mode. Using `seek' or `tell' or other file operations may be non-portable. If you use `binmode' on a file, however, you can usually `seek' and `tell' with arbitrary values in safety. </snip> On Thu, 2002-01-31 at 08:46, Dave Benware wrote: > Bob Showalter wrote: > > No. A "\n" in your program is an ASCII linefeed (10) character > > on either platform. > > So, \n equals a LF, thank you. > > > > > > What happens on Windows is that when you are reading a file, > > each CR/LF pair from the file is changed to a single LF char > > before the data is returned to you. On output, the situation > > is reversed (LF is translated to CR/LF pair). On UNIX, no > > such translation is done. > > > > On Windows, if you don't want this translation done, you need > > to call binmode(). > > > > All the poop can be found at: > > > > perldoc -f binmode > > CR/LF has never been translated to a LF while reading a file > for me. If that were true, the whole situation would be > transparent and I would have never asked the question it seems. > I didn't see anything about this "translating" in the docs > on the binmode function. > > Bompa > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] -- Today is Sweetmorn the 31st day of Chaos in the YOLD 3168 Or is it? Missle Address: 33:48:3.521N 84:23:34.786W -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
