Pretty-printer for Ruby objects.
Which seems better?
non-pretty-printed output by #p is:
#<PP:0x81fedf0 @genspace=#<Proc:0x81feda0>, @group_queue=#<PrettyPrint::GroupQueue:0x81fed3c @queue=[[#<PrettyPrint::Group:0x81fed78 @breakables=[], @depth=0, @break=false>], []]>, @buffer=[], @newline="\n", @group_stack=[#<PrettyPrint::Group:0x81fed78 @breakables=[], @depth=0, @break=false>], @buffer_width=0, @indent=0, @maxwidth=79, @output_width=2, @output=#<IO:0x8114ee4>>
pretty-printed output by #pp is:
#<PP:0x81fedf0
@buffer=[],
@buffer_width=0,
@genspace=#<Proc:0x81feda0>,
@group_queue=
#<PrettyPrint::GroupQueue:0x81fed3c
@queue=
[[#<PrettyPrint::Group:0x81fed78 @break=false, @breakables=[], @depth=0>],
[]]>,
@group_stack=
[#<PrettyPrint::Group:0x81fed78 @break=false, @breakables=[], @depth=0>],
@indent=0,
@maxwidth=79,
@newline="\n",
@output=#<IO:0x8114ee4>,
@output_width=2>
I like the latter. If you do too, this library is for you.
Usage
pp(obj)
output obj
to $> in pretty printed format.
It returns nil
.
Output Customization
To define your customized pretty printing function for your classes, redefine a method #pretty_print(pp
) in the class. It takes an argument pp
which is an instance of the class PP. The method should use PP#text, PP#breakable, PP#nest, PP#group and PP#pp to print the object.
Author
Tanaka Akira <[email protected]>