.\" Automatically generated by Pod::Man 4.10 (Pod::Simple 3.35) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "PerlIO::eol 3pm" .TH PerlIO::eol 3pm "2018-11-01" "perl v5.28.0" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" PerlIO::eol \- PerlIO layer for normalizing line endings .SH "VERSION" .IX Header "VERSION" This document describes version 0.15 of PerlIO::eol, released December 18, 2006. .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 3 \& 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\enstring\er" ); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" This layer normalizes any of \f(CW\*(C`CR\*(C'\fR, \f(CW\*(C`LF\*(C'\fR, \f(CW\*(C`CRLF\*(C'\fR and \f(CW\*(C`Native\*(C'\fR into the designated line ending. It works for both input and output handles. .PP If you specify two different line endings joined by a \f(CW\*(C`\-\*(C'\fR, it will use the first one for reading and the second one for writing. For example, the \&\f(CW\*(C`LF\-CRLF\*(C'\fR encoding means that all input should be normalized to \f(CW\*(C`LF\*(C'\fR, and all output should be normalized to \f(CW\*(C`CRLF\*(C'\fR. .PP By default, data with mixed newlines are normalized silently. Append a \f(CW\*(C`!\*(C'\fR to the line ending will raise a fatal exception when mixed newlines are spotted. Append a \f(CW\*(C`?\*(C'\fR will raise a warning instead. .PP It is advised to pop any potential \f(CW\*(C`:crlf\*(C'\fR or encoding layers before this layer; this is usually done using a \f(CW\*(C`:raw\*(C'\fR prefix. .PP This module also optionally exports a \f(CW\*(C`eol_is_mixed\*(C'\fR function; it takes a string and returns the position of the first inconsistent line ending found in that string, or \f(CW0\fR if the line endings are consistent. .PP The \f(CW\*(C`CR\*(C'\fR, \f(CW\*(C`LF\*(C'\fR, \f(CW\*(C`CRLF\*(C'\fR and \f(CW\*(C`NATIVE\*(C'\fR constants are also exported at request. .SH "EXPORTS" .IX Header "EXPORTS" .SS "\s-1CR\s0" .IX Subsection "CR" A carriage return constant. .SS "\s-1CRLF\s0" .IX Subsection "CRLF" A carriage return/line feed constant. .SS "\s-1LF\s0" .IX Subsection "LF" A line feed constant. .SS "\s-1NATIVE\s0" .IX Subsection "NATIVE" The native line ending. .SS "eol_is_mixed" .IX Subsection "eol_is_mixed" This module also optionally exports a \f(CW\*(C`eol_is_mixed\*(C'\fR function; it takes a string and returns the position of the first inconsistent line ending found in that string, or \f(CW0\fR if the line endings are consistent. .SH "AUTHORS" .IX Header "AUTHORS" Audrey Tang . .PP Janitorial help by Gaal Yahas . .PP Inspired by PerlIO::nline by Ben Morrow, . .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2004\-2006 by Audrey Tang . .PP This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. .PP See