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Feature #13047

Use String literal instead of `String#+` for multiline pretty-printing of multiline strings

Added by mtsmfm (Fumiaki Matsushima) over 3 years ago. Updated over 3 years ago.

Status:
Assigned
Priority:
Normal
Target version:
-
[ruby-core:78708]

Description

Multiline pretty-printing of multiline strings is introduced. (https://bugs.ruby-lang.org/issues/12664)

> pp "bundler.rb"=> "module Bundler\n  BundlerError = Class.new(Exception)\n  def self.setup\n  end\nend\n"
{"bundler.rb"=>
  "module Bundler\n" +
  "  BundlerError = Class.new(Exception)\n" +
  "  def self.setup\n" +
  "  end\n" +
  "end\n"}

It is awesome but we can use String literal instead of String#+:

> pp "bundler.rb"=> "module Bundler\n  BundlerError = Class.new(Exception)\n  def self.setup\n  end\nend\n"
{"bundler.rb"=>
  "module Bundler\n" \
  "  BundlerError = Class.new(Exception)\n" \
  "  def self.setup\n" \
  "  end\n" \
  "end\n"}

It seems that pp want to output evaluable snippet but we can override String#+ so it may not work well.

Non-broken String will be:

> pp "bundler.rb"=> "module Bundler\nend\n"
{"bundler.rb"=> "module Bundler\n" "end\n"}

How do you think?


I tried to write patch but I can't find a way to append "\" to broken line only by current PP's API.

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