Data::Printer::Theme - create your own color themes for DDP!
package Data::Printer::Theme::MyCustomTheme;
sub colors {
return {
array => '#aabbcc', # array index numbers
number => '#aabbcc', # numbers
string => '#aabbcc', # strings
class => '#aabbcc', # class names
method => '#aabbcc', # method names
undef => '#aabbcc', # the 'undef' value
hash => '#aabbcc', # hash keys
regex => '#aabbcc', # regular expressions
code => '#aabbcc', # code references
glob => '#aabbcc', # globs (usually file handles)
vstring => '#aabbcc', # version strings (v5.30.1, etc)
lvalue => '#aabbcc', # lvalue label
format => '#aabbcc', # format type
true => '#aabbcc', # boolean type (true)
false => '#aabbcc', # boolean type (false)
repeated => '#aabbcc', # references to seen values
caller_info => '#aabbcc', # details on what's being printed
weak => '#aabbcc', # weak references flag
tainted => '#aabbcc', # tainted flag
unicode => '#aabbcc', # utf8 flag
escaped => '#aabbcc', # escaped characters (\t, \n, etc)
brackets => '#aabbcc', # (), {}, []
separator => '#aabbcc', # the "," between hash pairs, array elements, etc
quotes => '#aabbcc', # q(")
unknown => '#aabbcc', # any (potential) data type unknown to Data::Printer
};
}
1;
Then in your .dataprinter
file:
theme = MyCustomTheme
That's it! Alternatively, you can load it at runtime:
use DDP theme => 'MyCustomTheme';
Data::Printer colorizes your output by default. Originally, the only way to customize colors was to override the default ones. Data::Printer 1.0 introduced themes, and now you can pick a theme or create your own.
Data::Printer comes with several themes for you to choose from:
Run examples/try_me.pl
to see them in action on your own terminal!
A theme is a module in the Data::Printer::Theme
namespace. It doesn't have to inherit or load any module. All you have to do is implement a single function, colors
, that returns a hash reference where keys are the expected color labels, and values are the colors you want to use.
Feel free to copy & paste the code from the SYNOPSIS and customize at will :)
Setting any color to undef
means "Don't colorize this". Otherwise, the color is a string which can be one of the following:
Only 8 named colors are supported:
black, red, green, yellow, blue, magenta, cyan, white
and their bright_XXX
, on_XXX
and on_bright_XXX
variants.
Those are provided only as backards compatibility with older versions of Data::Printer and, because of their limitation, we encourage you to try and use one of the other representations.
You may provide any SGR escape sequence, and they will be honored as long as you use double quotes (e.g. "\e[38;5;196m"
). You may use this to achieve extra control like blinking, etc. Note, however, that some terminals may not support them.
'rgb(0,255,30)'
'#00FF3B'
NOTE: There may not be a real 1:1 conversion between RGB and terminal colors. In those cases we use approximation to achieve the closest option.