"Xavier Noria" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On Jun 6, 2006, at 14:16, John W. Krahn wrote: > >> Mr. Shawn H. Corey wrote: >>> >>> $output_file =~ s/\r//g; >>> # chomp only removes linefeed characters \n >>> >>> # BTW, there is no such thing as a newline; >>> # it is either a linefeed: \n ASCII LF 0x0A >>> # or a carriage return: \r ASCII CR 0x0D >> >> "\n" is inherited from the C programming language and is the newline >> escape >> sequence. On Unix and Unix-like systems the newline is equivalent to >> the >> ASCII line feed character but on other systems it could be one or more >> different characters. > > To be more precise, "\n" in Perl is eq "\012" everywhere except in Mac OS > pre-X, where it is eq "\015". In CRLF platforms like Win32 "\n" is > transparently converted to CRLF on writing and back on reading by PerlIO > in text mode. Thus, in a regular line-oriented script like > > while (my $line = <FH>) { > # work with $line > } > > $line ends with "\n" but does not contain a pair CRLF (assuming native > conventions in the input). On the other direction, the string "foo\n" has > length 4 in all systems. When you print that string into a file in text > mode on Windows the bytes on disk have an extra "\015", but that's > transparent to the programmer. That's the point of using "\n" as > logical/portable newline in Perl. > > I have written an article about newlines in Perl not yet published. All > those fine details are explained there. > > -- fxn > --expect me to read it..do give me a link once done, thanks.
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