Re^3: How to match last character of string, even if it happens to be a newline?

in reply to Re^2: How to match last character of string, even if it happens to be a newline?
in thread How to match last character of string, even if it happens to be a newline?

I didn't say it's a problem in general,

I said it's not always just one character like the OP suggested.

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery
FootballPerl is like chess, only without the dice}

Comment on Re^3: How to match last character of string, even if it happens to be a newline?

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Re^4: How to match last character of string, even if it happens to be a newline? by haj (Vicar) on May 13, 2019 at 05:46 UTC
In Perl, `"\n"` is always one character, regardless of the platform. It is written as two bytes if you use the default encoding on some platforms, Windows being the most popular. Newline has a nice overview. If you read a file containing `0D0A` using the default encoding on Unix platforms, or with binmode on any platform, you get two characters `"\r\n"` which you can (or have to) process.	[reply]
Re^5: How to match last character of string, even if it happens to be a newline? by LanX (Saint) on May 13, 2019 at 16:49 UTC
I think you are right, `\n` seems to be encoded as `0x0A` on all plattforms. Though didn't test writing and rereading, but I suppose the effect to be the same as long as I don't specify an open with the binmode option. Thanks! :) Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery FootballPerl is like chess, only without the dice}	[reply] [d/l] [select]
Re^6: How to match last character of string, even if it happens to be a newline? by haukex (Archbishop) on May 13, 2019 at 18:18 UTC
I think you are right, `\n` seems to be encoded as `0x0A` on all plattforms. I can't test right now, but perlport says differently: 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`. On EBCDIC platforms, `\n` could be `\025` or `\045`. In DOSish perls, `\n` usually means `\012`, but when accessing a file in "text" mode, perl uses the `:crlf` layer that translates it to (or from) `\015\012`, depending on whether you're reading or writing. Unix does the same thing on ttys in canonical mode. `\015\012` is commonly referred to as CRLF.	[reply] [d/l] [select]
Re^7: How to match last character of string, even if it happens to be a newline? by LanX (Saint) on May 13, 2019 at 20:34 UTC
Re^8: How to match last character of string, even if it happens to be a newline? by afoken (Chancellor) on May 14, 2019 at 18:01 UTC
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