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perlio::eol(3) [osx man page]

eol(3)							User Contributed Perl Documentation						    eol(3)

PerlIO::eol - PerlIO layer for normalizing line endings VERSION
This document describes version 0.14 of PerlIO::eol, released December 18, 2006. SYNOPSIS
binmode STDIN, ":raw:eol(LF)"; binmode STDOUT, ":raw:eol(CRLF)"; open FH, "+<:raw:eol(LF-Native)", "file"; binmode STDOUT, ":raw:eol(CRLF?)"; # warns on mixed newlines binmode STDOUT, ":raw:eol(CRLF!)"; # dies on mixed newlines use PerlIO::eol qw( eol_is_mixed ); my $pos = eol_is_mixed( "mixed string " ); DESCRIPTION
This layer normalizes any of "CR", "LF", "CRLF" and "Native" into the designated line ending. It works for both input and output handles. If you specify two different line endings joined by a "-", it will use the first one for reading and the second one for writing. For example, the "LF-CRLF" encoding means that all input should be normalized to "LF", and all output should be normalized to "CRLF". By default, data with mixed newlines are normalized silently. Append a "!" to the line ending will raise a fatal exception when mixed newlines are spotted. Append a "?" will raise a warning instead. It is advised to pop any potential ":crlf" or encoding layers before this layer; this is usually done using a ":raw" prefix. This module also optionally exports a "eol_is_mixed" function; it takes a string and returns the position of the first inconsistent line ending found in that string, or 0 if the line endings are consistent. The "CR", "LF", "CRLF" and "NATIVE" constants are also exported at request. AUTHORS
Audrey Tang <>. Janitorial help by Gaal Yahas <>. Inspired by PerlIO::nline by Ben Morrow, <>. COPYRIGHT
Copyright 2004-2006 by Audrey Tang <>. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <> perl v5.16.2 2006-12-15 eol(3)

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MIME::QuotedPrint(3pm)					 Perl Programmers Reference Guide				    MIME::QuotedPrint(3pm)

MIME::QuotedPrint - Encoding and decoding of quoted-printable strings SYNOPSIS
use MIME::QuotedPrint; $encoded = encode_qp($decoded); $decoded = decode_qp($encoded); DESCRIPTION
This module provides functions to encode and decode strings into and from the quoted-printable encoding specified in RFC 2045 - MIME (Multipurpose Internet Mail Extensions). The quoted-printable encoding is intended to represent data that largely consists of bytes that correspond to printable characters in the ASCII character set. Each non-printable character (as defined by English Americans) is represented by a triplet consisting of the character "=" followed by two hexadecimal digits. The following functions are provided: encode_qp( $str) encode_qp( $str, $eol) encode_qp( $str, $eol, $binmode ) This function returns an encoded version of the string ($str) given as argument. The second argument ($eol) is the line-ending sequence to use. It is optional and defaults to " ". Every occurrence of " " is replaced with this string, and it is also used for additional "soft line breaks" to ensure that no line end up longer than 76 characters. Pass it as "1512" to produce data suitable for external consumption. The string " " produces the same result on many platforms, but not all. The third argument ($binmode) will select binary mode if passed as a TRUE value. In binary mode " " will be encoded in the same way as any other non-printable character. This ensures that a decoder will end up with exactly the same string whatever line ending sequence it uses. In general it is preferable to use the base64 encoding for binary data; see MIME::Base64. An $eol of "" (the empty string) is special. In this case, no "soft line breaks" are introduced and binary mode is effectively enabled so that any " " in the original data is encoded as well. decode_qp( $str ) This function returns the plain text version of the string given as argument. The lines of the result are " " terminated, even if the $str argument contains " " terminated lines. If you prefer not to import these routines into your namespace, you can call them as: use MIME::QuotedPrint (); $encoded = MIME::QuotedPrint::encode($decoded); $decoded = MIME::QuotedPrint::decode($encoded); Perl v5.8 and better allow extended Unicode characters in strings. Such strings cannot be encoded directly, as the quoted-printable encoding is only defined for single-byte characters. The solution is to use the Encode module to select the byte encoding you want. For example: use MIME::QuotedPrint qw(encode_qp); use Encode qw(encode); $encoded = encode_qp(encode("UTF-8", "x{FFFF} ")); print $encoded; COPYRIGHT
Copyright 1995-1997,2002-2004 Gisle Aas. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
MIME::Base64 perl v5.18.2 2013-11-04 MIME::QuotedPrint(3pm)
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