Module: Redmine::WikiFormatting::SectionHelper

Included in:
CommonMark::Formatter, Markdown::Formatter, Textile::Formatter
Defined in:
lib/redmine/wiki_formatting/section_helper.rb

Instance Method Summary collapse

Instance Method Details

#extract_sections(index) ⇒ Object 



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# File 'lib/redmine/wiki_formatting/section_helper.rb', line 39

def extract_sections(index)
  sections = [+'', +'', +'']
  offset = 0
  i = 0
  l = 1
  inside_pre = false
  @text.split(/(^(?:\S+\r?\n\r?(?:\=+|\-+)|#+.+|(?:~~~|```).*)\s*$)/).each do |part|
    level = nil
    if part =~ /\A(~{3,}|`{3,})(\s*\S+)?\s*$/
      if !inside_pre
        inside_pre = true
      elsif !$2
        inside_pre = false
      end
    elsif inside_pre
      # nop
    elsif part =~ /\A(#+).+/
      level = $1.size
    elsif part =~ /\A.+\r?\n\r?(\=+|\-+)\s*$/
      level = $1.include?('=') ? 1 : 2
    end
    if level
      i += 1
      if offset == 0 && i == index
        # entering the requested section
        offset = 1
        l = level
      elsif offset == 1 && i > index && level <= l
        # leaving the requested section
        offset = 2
      end
    end
    sections[offset] << part
  end
  sections.map(&:strip)
end

#get_section(index) ⇒ Object 



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# File 'lib/redmine/wiki_formatting/section_helper.rb', line 23

def get_section(index)
  section = extract_sections(index)[1]
  hash = Digest::MD5.hexdigest(section)
  return section, hash
end

#update_section(index, update, hash = nil) ⇒ Object 



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# File 'lib/redmine/wiki_formatting/section_helper.rb', line 29

def update_section(index, update, hash=nil)
  t = extract_sections(index)
  if hash.present? && hash != Digest::MD5.hexdigest(t[1])
    raise Redmine::WikiFormatting::StaleSectionError
  end

  t[1] = update unless t[1].blank?
  t.reject(&:blank?).join "\n\n"
end