Method: Litbuild::BlueprintParser#initialize

Defined in:
lib/litbuild/blueprint_parser.rb

#initialize(file_text) ⇒ BlueprintParser

Returns a new instance of BlueprintParser.



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# File 'lib/litbuild/blueprint_parser.rb', line 20

def initialize(file_text)
  @text = file_text
  @phase_directives = {}
  @phase_grafs = {}
  phase_chunks = @text.split(/^phase: ([a-z -_]+)$/)

  # The first part of the blueprint, before any phase directive,
  # becomes the base directives and base narrative for the
  # blueprint. If there are no phase directives, this is the entire
  # blueprint, obvs.
  @base_grafs = []
  @base_directives = parse_phase(phase_chunks.shift, {}, @base_grafs)
  @base_directives['full-name'] ||= @base_directives['name']

  # The rest of the blueprint, if any, consists of directives and
  # narrative for specific phases. The directives for each phase
  # include all the base directives, as well as those specific to
  # the phase.
  until phase_chunks.empty?
    phase_name = phase_chunks.shift
    phase_contents = phase_chunks.shift
    grafs = []
    @phase_directives[phase_name] = parse_phase(phase_contents,
                                                @base_directives,
                                                grafs)
    @phase_grafs[phase_name] = grafs
  end

  # Any directives at the beginning of a blueprint are actually a
  # file header that should not be considered as part of the
  # narrative for it.
  @base_grafs.shift while @base_grafs[0].is_a?(Hash)
rescue StandardError => e
  msg = "Cannot parse blueprint starting: #{@text.lines[0..3].join}"
  raise(Litbuild::ParseError, "#{msg} -- #{e}")
end