Class: ActsAsScriptural::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/acts_as_scriptural/parser.rb

Instance Method Summary collapse

Instance Method Details

#parse_reference(reference) ⇒ Object 



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# File 'lib/acts_as_scriptural/parser.rb', line 4

def parse_reference(reference)
  result = ParsedReference.new
  # this reference needs to have no spaces to be parsed properly;
  # the matches will contain (if applicable)
  # match 1: first book name
  # match 2: first chapter
  # match 3: second book name (if present)
  # match 4: last chapter
  regex = /^([0-9]?[a-zA-Z]+)\.?([0-9]+)(?:-|..)?(?:([0-9]?[a-zA-Z]+)?\.?([0-9]+))?/
  match = reference.gsub(/\s+/,'').match(regex)
  if match
    if (match[3].nil? && match[4].nil?)  # only one chapter
      result.first_book = match[1]
      result.last_book = match[1]
      result.first_chapter = match[2].to_i
      result.last_chapter = match[2].to_i
    elsif match[3]  # the range must include two books
      result.first_book = match[1]
      result.last_book = match[3]
      result.first_chapter = match[2].to_i
      result.last_chapter = match[4].to_i
    else  # just one book in the range
      result.first_book = match[1]
      result.last_book = match[1]
      result.first_chapter = match[2].to_i
      result.last_chapter = match[4].to_i
    end
      result.first_book_index = ActsAsScriptural::AbbreviationLookup.new.index_number(result.first_book)
      result.last_book_index = ActsAsScriptural::AbbreviationLookup.new.index_number(result.last_book)
      result = validate_chapter_ranges(result)
      result
  else
    nil
  end
end

#validate_chapter_ranges(result) ⇒ Object 



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# File 'lib/acts_as_scriptural/parser.rb', line 40

def validate_chapter_ranges(result)
  # doesn't allow nonsensical chapter numbers
  bible = ActsAsScriptural::Bible.new
  max_first_book_chapters = bible.chapters_in_book(result.first_book_index)
  max_last_book_chapters = bible.chapters_in_book(result.last_book_index)

  result.first_chapter = 1 if result.first_chapter < 1
  result.last_chapter = 1 if result.first_chapter < 1
  result.first_chapter = max_first_book_chapters if result.first_chapter > max_first_book_chapters
  result.last_chapter = max_last_book_chapters if result.last_chapter > max_last_book_chapters

  result
end