Re^4: Count the sequence length of each entry in the file


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Re^4: Count the sequence length of each entry in the file

by haukex (Archbishop)

on Oct 03, 2020 at 07:44 UTC ( [id://11122509]=note: print w/replies, xml )

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in reply to Re^3: Count the sequence length of each entry in the file
in thread Count the sequence length of each entry in the file

If on windows also delete "\r" characters.

This is not necessary as the PerlIO :crlf layer is default on Windows and converts CRLF to LF on input. One can disable the translation with binmode or the :raw pseudolayer, but that's not the case in any of the code shown here. See also Newlines in perlport, and note that chomp also handles paragraph mode correctly.

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Re^5: Count the sequence length of each entry in the file by wazat (Monk) on Oct 03, 2020 at 20:25 UTC
You're right about CRLF conversion. If I'm using perl on windows it is often via cygwin. In that case perl defaults to UNIX behaviour. The poster didn't provide much in the way of detail, but embedded CRLF might explain the difference of 4. It's hard to tell the details. I wasn't aware of chomp's behaviour. I seldom use paragraph mode. Thanks for that detail.	[reply]

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