class Mmtrix::Agent::RulesEngine::SegmentTermsRule

Constants

ADJACENT_PLACEHOLDERS_REGEX
ADJACENT_PLACEHOLDERS_REPLACEMENT
SEGMENT_PLACEHOLDER

Attributes

prefix[R]
terms[R]

Public Class Methods

new(options) click to toggle source
# File lib/mmtrix/agent/rules_engine/segment_terms_rule.rb, line 15
def initialize(options)
  @prefix          = options['prefix']
  @terms           = options['terms']
  @trim_range      = (@prefix.size..-1)
end

Public Instance Methods

apply(string) click to toggle source
# File lib/mmtrix/agent/rules_engine/segment_terms_rule.rb, line 29
def apply(string)
  rest          = string[@trim_range]
  leading_slash = rest.slice!(LEADING_SLASH_REGEX)

  segments = rest.split(SEGMENT_SEPARATOR)
  segments.map! { |s| @terms.include?(s) ? s : SEGMENT_PLACEHOLDER }
  transformed_suffix = collapse_adjacent_placeholder_segments(segments)

  "#{@prefix}#{leading_slash}#{transformed_suffix}"
end
collapse_adjacent_placeholder_segments(segments) click to toggle source
# File lib/mmtrix/agent/rules_engine/segment_terms_rule.rb, line 40
def collapse_adjacent_placeholder_segments(segments)
  joined = segments.join(SEGMENT_SEPARATOR)
  joined.gsub!(ADJACENT_PLACEHOLDERS_REGEX, ADJACENT_PLACEHOLDERS_REPLACEMENT)
  joined
end
matches?(string) click to toggle source
# File lib/mmtrix/agent/rules_engine/segment_terms_rule.rb, line 25
def matches?(string)
  string.start_with?(@prefix)
end
terminal?() click to toggle source
# File lib/mmtrix/agent/rules_engine/segment_terms_rule.rb, line 21
def terminal?
  true
end