1Data::HexDump(3)      User Contributed Perl Documentation     Data::HexDump(3)
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NAME

6       Data::HexDump - Hexadecial Dumper
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SYNOPSIS

9       Functional interface:
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11         use Data::HexDump;
12         print HexDump($data_string);
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14       OO interface:
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16         use Data::HexDump;
17         my $dumper = Data::HexDump->new();
18         print while $_ = $dumper->dump;
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DESCRIPTION

21       This module will generate a hexadecimal dump of a data string or file.
22       You can either use the exported function, as shown in the SYNOPSIS
23       above, or the OO interface, described below.
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25       The second example from the SYNOPSIS generated this output:
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27                  00 01 02 03 04 05 06 07 - 08 09 0A 0B 0C 0D 0E 0F  0123456789ABCDEF
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29        00000000  23 21 2F 75 73 72 2F 62 - 69 6E 2F 70 65 72 6C 0A  #!/usr/bin/perl.
30        00000010  75 73 65 20 73 74 72 69 - 63 74 3B 0A 75 73 65 20  use strict;.use
31        00000020  77 61 72 6E 69 6E 67 73 - 3B 0A 0A 70 72 69 6E 74  warnings;..print
32        00000030  20 22 48 65 6C 6C 6F 2C - 20 77 6F 72 6C 64 5C 6E   "Hello, world\n
33        00000040  22 3B 0A                                           ";.
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35       The result is returned in a string.  Each line of the result consists
36       of the offset in the source in the leftmost column of each line,
37       followed by one or more columns of data from the source in hexadecimal.
38       The rightmost column of each line shows the printable characters (all
39       others are shown as single dots).
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41   Functional Interface
42       This module exports a single function, "HexDump", which takes a scalar
43       value and returns a string which contains the hexdump of the passed
44       data.
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46   OO Interface
47       You first construct a "Data::HexDump" object, then tell it where to get
48       the data from, and then generate the hex dump:
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50           my $dh = Data::HexDump->new();
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52           $dh->data($scalar);      # dump the data in this scalar
53           $dh->fh($fh);            # read this filehandle
54           $dh->file($filename);    # read this file and dump contents
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56           print while $_ = $dh->dump;
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58       The different potential sources for data are considered in the order
59       given above, so if you pass to the "data" method, then any subsequent
60       calls to "fh()" or "file()" will have no effect.
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SEE ALSO

63       Data::Hexify, by Johan Vromans, is another simple option, similar to
64       this module. Last release in 2004.
65
66       Data::Hexdumper (by David Cantrell, DCANTRELL) is another hex dumper,
67       with more features than this module.
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69       App::colourhexdump (by Kent Fredric, RIP) provides a script which gives
70       colourised output with character class highlighting.
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72       Data::HexDump::Range provides more functions, colour output, and the
73       ability to skip uninteresting parts of the input data.
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75       Data::HexDump::XXD provides hex dumps like xxd.  It doesn't say what
76       xxd is, or provide a link, and there's no example output.  But if you
77       know and like xxd, this might be the one for you!
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79       Devel::Hexdump provides some configuration options, but there are other
80       more featured modules, and this one doesn't have example output in the
81       doc.
82
83       Data::Peek is a collection of functions for displaying data, including
84       "DHexDump" which generates a simple hex dump from a string.
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86       String::HexConvert will convert ASCII strings to hex and reverse.
87

AUTHOR

89       Fabien Tassin <fta@oleane.net>
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92       Copyright (c) 1998-1999 Fabien Tassin. All rights reserved.  This
93       program is free software; you can redistribute it and/or modify it
94       under the same terms as Perl itself.
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98perl v5.34.0                      2022-01-21                  Data::HexDump(3)
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