Class: Treat::Workers::Formatters::Visualizers::Standoff

Inherits:
Object
  • Object
show all
Defined in:
lib/treat/workers/formatters/visualizers/standoff.rb

Overview

Visualization of entities in standoff (tag-bracketed) format, based on the Stanford tag-bracketed format.

Constant Summary collapse

DefaultOptions =

Start out with an indent of 0.

{ :indent => 0 }
Recurse =

A lambda to recursively visualize the children of an entity.

lambda do |entity, options|
  v = ''
  entity.each { |child| v += visualize(child, options) }
  v
end

Class Method Summary collapse

Class Method Details

.ptb_escape(val) ⇒ Object 



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# File 'lib/treat/workers/formatters/visualizers/standoff.rb', line 45

def self.ptb_escape(val)
  Treat.tags.ptb.escape_characters.each do |char, esc|
    val.gsub!(char, val)
  end
  
  val
end

.visualize(entity, options = {}) ⇒ Object

Fix - brackets Visualize the entity using standoff notation. This can only be called on sentences and smaller entities, as it is not a suitable format to represent larger entities.



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# File 'lib/treat/workers/formatters/visualizers/standoff.rb', line 21

def self.visualize(entity, options = {})
  options = DefaultOptions.merge(options)
  value = '';  spaces = ''
  options[:indent].times { spaces << '   '}
  options[:indent] += 1
  if entity.is_a?(Treat::Entities::Token)
    val = ptb_escape(entity.value)
    value += "#{spaces}(#{entity.tag} #{val})"
  elsif entity.is_a?(Treat::Entities::Phrase)
    tag = entity.has?(:tag) ? entity.tag : ''
    value += ("#{spaces}(#{tag}\n" +
    "#{Recurse.call(entity, options)})\n")
  elsif entity.is_a?(Treat::Entities::Sentence)
    value += ("#{spaces}(S\n" +
    "#{Recurse.call(entity, options)})\n")
  else
    raise 'Standoff format is unsuitable to represent' +
    ' entities larger than sentences.'
  end
  options[:indent] -= 1
  value.gsub!(")\n)", "))")
  value
end