Class: Prosereflect::Transform::DeleteStep

Inherits:
Step
  • Object
show all
Defined in:
lib/prosereflect/transform/insert_step.rb

Overview

Delete content in a range

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Step

#merge, #pos

Constructor Details

#initialize(from, to) ⇒ DeleteStep

Returns a new instance of DeleteStep.



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# File 'lib/prosereflect/transform/insert_step.rb', line 62

def initialize(from, to)
  super()
  @from = from
  @to = to
end

Instance Attribute Details

#from ⇒ Object (readonly)

Returns the value of attribute from.



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# File 'lib/prosereflect/transform/insert_step.rb', line 60

def from
  @from
end

#to ⇒ Object (readonly)

Returns the value of attribute to.



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# File 'lib/prosereflect/transform/insert_step.rb', line 60

def to
  @to
end

Class Method Details

.from_json(_schema, json) ⇒ Object 



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# File 'lib/prosereflect/transform/insert_step.rb', line 102

def self.from_json(_schema, json)
  new(json["from"], json["to"])
end

Instance Method Details

#apply(doc) ⇒ Object 



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# File 'lib/prosereflect/transform/insert_step.rb', line 68

def apply(doc)
  return Result.fail("Invalid positions") if @from > @to
  return Result.fail("from < 0") if @from.negative?
  return Result.fail("to > doc size") if @to > doc.node_size

  begin
    replace_step = ReplaceStep.new(@from, @to, Slice.empty)
    replace_step.apply(doc)
  rescue StandardError => e
    Result.fail(e.message)
  end
end

#get_map ⇒ Object 



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# File 'lib/prosereflect/transform/insert_step.rb', line 81

def get_map
  StepMap.delete(@from, @to)
end

#invert(doc) ⇒ Object 



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# File 'lib/prosereflect/transform/insert_step.rb', line 85

def invert(doc)
  # Find what was deleted
  deleted = content_between(doc, @from, @to)
  InsertStep.new(@from, deleted)
end

#step_type ⇒ Object 



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# File 'lib/prosereflect/transform/insert_step.rb', line 91

def step_type
  "delete"
end

#to_json(*_args) ⇒ Object 



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# File 'lib/prosereflect/transform/insert_step.rb', line 95

def to_json(*_args)
  json = super
  json["from"] = @from
  json["to"] = @to
  json
end