Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 171 insertions, 0 deletions

diff --git a/upstream/debian-unstable/man3/Encode::Alias.3perl b/upstream/debian-unstable/man3/Encode::Alias.3perl
new file mode 100644
index 00000000..beab9203
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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" 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
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+.    ds C` ""
+.    ds C' ""
+'br\}
+.el\{\
+.    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 "Encode::Alias 3perl"
+.TH Encode::Alias 3perl 2024-01-12 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" 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
+Encode::Alias \- alias definitions to encodings
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 5
+\&  use Encode;
+\&  use Encode::Alias;
+\&  define_alias( "newName" => ENCODING);
+\&  define_alias( qr/.../ => ENCODING);
+\&  define_alias( sub { return ENCODING if ...; } );
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+Allows newName to be used as an alias for ENCODING. ENCODING may be
+either the name of an encoding or an encoding object (as described 
+in Encode).
+.PP
+Currently the first argument to \fBdefine_alias()\fR can be specified in the
+following ways:
+.IP "As a simple string." 4
+.IX Item "As a simple string."
+.PD 0
+.IP "As a qr// compiled regular expression, e.g.:" 4
+.IX Item "As a qr// compiled regular expression, e.g.:"
+.PD
+.Vb 1
+\&  define_alias( qr/^iso8859\-(\ed+)$/i => \*(Aq"iso\-8859\-$1"\*(Aq );
+.Ve
+.Sp
+In this case, if \fIENCODING\fR is not a reference, it is \f(CW\*(C`eval\*(C'\fR\-ed
+in order to allow \f(CW$1\fR etc. to be substituted.  The example is one
+way to alias names as used in X11 fonts to the MIME names for the
+iso\-8859\-* family.  Note the double quotes inside the single quotes.
+.Sp
+(or, you don't have to do this yourself because this example is predefined)
+.Sp
+If you are using a regex here, you have to use the quotes as shown or
+it won't work.  Also note that regex handling is tricky even for the
+experienced.  Use this feature with caution.
+.IP "As a code reference, e.g.:" 4
+.IX Item "As a code reference, e.g.:"
+.Vb 1
+\&  define_alias( sub {shift =~ /^iso8859\-(\ed+)$/i ? "iso\-8859\-$1" : undef } );
+.Ve
+.Sp
+The same effect as the example above in a different way.  The coderef
+takes the alias name as an argument and returns a canonical name on
+success or undef if not.  Note the second argument is ignored if provided.
+Use this with even more caution than the regex version.
+.PP
+\fIChanges in code reference aliasing\fR
+.IX Subsection "Changes in code reference aliasing"
+.PP
+As of Encode 1.87, the older form
+.PP
+.Vb 1
+\&  define_alias( sub { return  /^iso8859\-(\ed+)$/i ? "iso\-8859\-$1" : undef } );
+.Ve
+.PP
+no longer works.
+.PP
+Encode up to 1.86 internally used "local \f(CW$_\fR" to implement this older
+form.  But consider the code below;
+.PP
+.Vb 6
+\&  use Encode;
+\&  $_ = "eeeee" ;
+\&  while (/(e)/g) {
+\&    my $utf = decode(\*(Aqaliased\-encoding\-name\*(Aq, $1);
+\&    print "position:",pos,"\en";
+\&  }
+.Ve
+.PP
+Prior to Encode 1.86 this fails because of "local \f(CW$_\fR".
+.SS "Alias overloading"
+.IX Subsection "Alias overloading"
+You can override predefined aliases by simply applying \fBdefine_alias()\fR.
+The new alias is always evaluated first, and when necessary,
+\&\fBdefine_alias()\fR flushes the internal cache to make the new definition
+available.
+.PP
+.Vb 2
+\&  # redirect SHIFT_JIS to MS/IBM Code Page 932, which is a
+\&  # superset of SHIFT_JIS
+\&
+\&  define_alias( qr/shift.*jis$/i  => \*(Aq"cp932"\*(Aq );
+\&  define_alias( qr/sjis$/i        => \*(Aq"cp932"\*(Aq );
+.Ve
+.PP
+If you want to zap all predefined aliases, you can use
+.PP
+.Vb 1
+\&  Encode::Alias\->undef_aliases;
+.Ve
+.PP
+to do so.  And
+.PP
+.Vb 1
+\&  Encode::Alias\->init_aliases;
+.Ve
+.PP
+gets the factory settings back.
+.PP
+Note that \fBdefine_alias()\fR will not be able to override the canonical name
+of encodings. Encodings are first looked up by canonical name before
+potential aliases are tried.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+Encode, Encode::Supported