Class: Redmine::WikiFormatting::Markdown::Formatter

Inherits:
Object
  • Object
show all
Defined in:
lib/redmine/wiki_formatting/markdown/formatter.rb

Instance Method Summary collapse

Constructor Details

#initialize(text) ⇒ Formatter

Returns a new instance of Formatter.


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# File 'lib/redmine/wiki_formatting/markdown/formatter.rb', line 46

def initialize(text)
  @text = text
end

Instance Method Details

#extract_sections(index) ⇒ Object 


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# File 'lib/redmine/wiki_formatting/markdown/formatter.rb', line 78

def extract_sections(index)
  sections = ['', '', '']
  offset = 0
  i = 0
  l = 1
  inside_pre = false
  @text.split(/(^(?:.+\r?\n\r?(?:\=+|\-+)|#+.+|~~~.*)\s*$)/).each do |part|
    level = nil
    if part =~ /\A~{3,}(\S+)?\s*$/
      if $1
        if !inside_pre
          inside_pre = true
        end
      else
        inside_pre = !inside_pre
      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/markdown/formatter.rb', line 63

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

#to_html(*args) ⇒ Object 


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# File 'lib/redmine/wiki_formatting/markdown/formatter.rb', line 50

def to_html(*args)
  html = formatter.render(@text)
  # restore wiki links eg. [[Foo]]
  html.gsub!(%r{\[<a href="(.*?)">(.*?)</a>\]}) do
    "[[#{$2}]]"
  end
  # restore Redmine links with double-quotes, eg. version:"1.0"
  html.gsub!(/(\w):&quot;(.+?)&quot;/) do
    "#{$1}:\"#{$2}\""
  end
  html
end

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


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# File 'lib/redmine/wiki_formatting/markdown/formatter.rb', line 69

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