1PrintControl(3)       User Contributed Perl Documentation      PrintControl(3)
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NAME

6       PDL::Perldl2::Plugin::PrintControl - disable default print output
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SYNOPSIS

9         pdl> $a = 3;
10         3
11         pdl> $_REPL->load_plugin('PDL::Perldl2::Plugin::PrintControl');
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13         pdl> $a;
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15         pdl> $_REPL->print_by_default(1);
16         1
17         pdl> $a;
18         3
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DESCRIPTION

21       By default the Devel::REPL always prints the results of its evaluation.
22       This is fine for small objects but for things like large data objects
23       (e.g. a 100x100 matrix in PDL) the result can be hundreds of lines of
24       output for each command.
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26       This plugin disables the default print output and adds an attribute
27       with accessor method "print_by_default" which can be used to toggle the
28       print default on or off.
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METHODS

31   print_by_default
32       By default, the "PrintControl" plugin sets "print_by_default" to 0
33       (false), which disables automatic printing of results.  Call the
34       print_by_default accessor with a 1 (true value) to enable default
35       printing.
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37   do_print
38       This is a convenience accessor for the print_by_default attribute.  If
39       you call this method without a value, it toggles the current setting.
40       Otherwise, it just sets print_by_default to the value.
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42       It is also available in the "pdl2" shell as the do_print sub with the
43       same operation but with an implicit use of $_REPL.
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SEE ALSO

46       "Devel::REPL"
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AUTHOR

49       Chris Marshall, "<chm at cpan dot org>"
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52       Copyright (C) 2010 by Christopher Marshall
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54       This library is free software; you can redistribute it and/or modify it
55       under the same terms as Perl itself.
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59perl v5.28.0                      2018-05-05                   PrintControl(3)
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