Class: YAMLRewriter::Rewriter

Inherits:

Object

• Object
• YAMLRewriter::Rewriter

Defined in:

lib/yaml_rewriter/rewriter.rb

Overview

Usage:

class MyRewriter < YAMLRewriter::Rewriter
  define_rule ['foo' => 'bar']
  define_rule ['one', 'two', 'threeee' => 'three']
end

MyRewriter.new('foo: baz').rewrite # => 'bar: baz'

rewriter = MyRewriter.new(<<-END)
  one:
    two:
      threeee: 123
END
rewriter.rewrite # => one:
                        two:
                          three: 123

Direct Known Subclasses

Mry::Rewriters::Rewriter_0, Mry::Rewriters::Rewriter_0_41_0, Mry::Rewriters::Rewriter_0_42_0, Mry::Rewriters::Rewriter_0_43_0, Mry::Rewriters::Rewriter_0_44_0, Mry::Rewriters::Rewriter_0_45_0, Mry::Rewriters::Rewriter_0_46_0, Mry::Rewriters::Rewriter_0_47_0, Mry::Rewriters::Rewriter_0_48_0, Mry::Rewriters::Rewriter_0_49_0, Mry::Rewriters::Rewriter_0_50_0, Mry::Rewriters::Rewriter_0_51_0, Mry::Rewriters::Rewriter_0_52_0, Mry::Rewriters::Rewriter_0_53_0, Mry::Rewriters::Rewriter_0_54_0, Mry::Rewriters::Rewriter_0_55_0, Mry::Rewriters::Rewriter_0_56_0, Mry::Rewriters::Rewriter_0_57_0, Mry::Rewriters::Rewriter_0_58_0, Mry::Rewriters::Rewriter_0_59_0, Mry::Rewriters::Rewriter_Master

Class Method Summary

• .define_rule(rule) ⇒ Object
• .rules ⇒ Object

Instance Method Summary

• #initialize(yaml, reverse: false) ⇒ Rewriter constructor

  A new instance of Rewriter.

• #rewrite ⇒ String

Constructor Details

#initialize(yaml, reverse: false) ⇒ Rewriter

Returns a new instance of Rewriter.

Parameters:

• yaml (String)
• reverse (true|false) (defaults to: false)

# File 'lib/yaml_rewriter/rewriter.rb', line 22

def initialize(yaml, reverse: false)
  @yaml = yaml.dup
  @reverse = reverse
  @offset = 0
end

Class Method Details

.define_rule(rule) ⇒ Object

Parameters:

• rule (Array)

# File 'lib/yaml_rewriter/rewriter.rb', line 29

def self.define_rule(rule)
  rules.push(Rule.new(rule))
end

.rules ⇒ Object

# File 'lib/yaml_rewriter/rewriter.rb', line 33

def self.rules
  @rules ||= []
end

Instance Method Details

#rewrite ⇒ String

Returns:

• (String)

# File 'lib/yaml_rewriter/rewriter.rb', line 38

def rewrite
  tree = Parser.new.parse(@yaml).handler.root
  traverse(tree)
  @yaml
end