1Data::Printer::Profile(U3s)er Contributed Perl DocumentatDiaotna::Printer::Profile(3)
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6 Data::Printer::Profile - customize your Data::Printer with code
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9 package Data::Printer::Profile::MyProfile;
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11 sub profile {
12 return {
13 show_tainted => 1,
14 show_unicode => 0,
15 array_max => 30,
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17 # ...and so on...
18 }
19 }
20 1;
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22 Then put in your '.dataprinter' file:
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24 profile = MyProfile
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26 or load it at compile time:
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28 use DDP profile => 'MyProfile';
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30 or anytime during execution:
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32 p $some_data, profile => 'MyProfile';
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35 Usually a ".dataprinter" file is enough to customize Data::Printer. But
36 sometimes you want to use actual code to create special filters and
37 rules, like a dynamic color scheme depending on terminal background or
38 even the hour of the day, or a custom message that includes the
39 hostname. Who knows!
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41 Or maybe you just want to be able to upload your settings to CPAN and
42 load them easily anywhere, as shown in the SYNOPSIS.
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44 For all those cases, use a profile class!
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46 Creating a profile class
47 Simply create a module named "Data::Printer::Profile::MyProfile"
48 (replacing, of course, "MyProfile" for the name of your profile).
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50 That class doesn't have to inherit from "Data::Printer::Profile", nor
51 add Data::Printer as a dependency. All you have to do is implement a
52 subroutine called "profile()" that returns a hash reference with all
53 the options you want to use.
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55 Load order
56 Profiles are read first and expanded into their options. So if you have
57 a profile called MyProfile with, for example:
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59 show_tainted = 0
60 show_lvalue = 0
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62 And your ".dataprinter" file contains something like:
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64 profile = MyProfile
65 show_lvalue = 1
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67 The specific 'show_lvalues = 1' will override the other setting in the
68 profile and the final outcome will be as if your setup said:
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70 show_tainted = 0
71 show_lvalue = 1
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73 However, that is of course only true when the profile is loaded
74 together with the other settings. If you set a profile later, for
75 instance as an argument to "p()" or "np()", then the profile will
76 override any previous settings - though it will still be overriden by
77 other inline arguments.
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80 Data::Printer Data::Printer::Filter
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84perl v5.34.0 2021-07-22 Data::Printer::Profile(3)