class PolyrexLinks

Public Class Methods

new(rawx='links/link[title,url]', delimiter: ' click to toggle source

Calls superclass method

# File lib/polyrex-links.rb, line 9
def initialize(rawx='links/link[title,url]', delimiter: ' # ', debug: false)

  x, _ = RXFReader.read(rawx)
  obj = x.lstrip.sub(/<\?polyrex-links\?>/,
                '<?polyrex schema="links/link[title,url]" delimiter=" # "?>')
  puts 'obj: ' + x.inspect if debug

  super(obj)
  @delimiter = self.delimiter = delimiter
  @debug = debug

end

Public Instance Methods

find(s) click to toggle source

# File lib/polyrex-links.rb, line 22
def find(s)

  found = find_by_link_title s

  if found then

    path = backtrack_path found
    [link(path.join('/')), path.join('/')]

  end

end

index() click to toggle source

returns a listing of all links sorted by title in alphabetical order

# File lib/polyrex-links.rb, line 37
def index()

  a = []
  each_recursive {|link|  a << [link.title, link.url, backtrack_path(link)] }
  a.sort_by {|title, _, _| title.downcase}

end

link(s) click to toggle source

Returns the Polyrex element for the given path

# File lib/polyrex-links.rb, line 62
def link(s)

  self.rxpath(s.split('/').map {|x| "link[title='%s']" % x}.join('/')).first

end

locate(raw_path) click to toggle source

Returns the url and remaining arguments for the given path

# File lib/polyrex-links.rb, line 70
def locate(raw_path)

  return nil if raw_path.nil? or raw_path.strip.empty?
  path = raw_path.sub(/^\//,'')
  a = path.split('/')
  a2 = []
  (a2 << a.clone; a.pop) while a.any?
  return nil if a2.empty?

  mask = "records/link[summary/title='%s']"

  begin
    c = a2.shift; xpath = c.map{|x| mask % x}.join + '/summary/url/text()'
    r = self.element xpath
  end until r or a2.empty?

  # return the found path along with any remaining string which
  #   it didn't find, or it will return nil.

  puts "c: %s\npath: %s\nr: %s" % [c, path, r].map(&:inspect) if @debug

  r ? [r, path.sub(c.join('/'),'')] : nil
end

migrate(raws) click to toggle source

# File lib/polyrex-links.rb, line 45
def migrate(raws)

  s, _ = RXFReader.read(raws)
  pl = PolyrexLinks.new("<?polyrex-links?>\n\n" +
                        s.sub(/<\?[^\?]+\?>/,'').lstrip)

  pl.each_recursive do |x|
    link, linkpath = find(x.title)
    x.url = link.url if link and link.url
  end

  pl

end

save(filepath) click to toggle source

Calls superclass method

# File lib/polyrex-links.rb, line 94
def save(filepath)

  super(filepath)
  export(filepath.sub(/\.xml$/,'.txt'))

end

search(keyword) click to toggle source

# File lib/polyrex-links.rb, line 101
def search(keyword)
  index().select {|x| x.first =~ /\b#{keyword}/}
end

to_h() click to toggle source

Return a flat Hash object containing all the links. The link path is used as the key and the value is the url

# File lib/polyrex-links.rb, line 109
def to_h()

  h = {}

  each_link {|key, value| h[key] = value }
  h

end

to_s() click to toggle source

Calls superclass method

# File lib/polyrex-links.rb, line 118
def to_s()
  "<?polyrex-links?>\n\n" + super(header: false)
end

Private Instance Methods

backtrack_path(e, a5=[]) click to toggle source

# File lib/polyrex-links.rb, line 124
def backtrack_path(e, a5=[])

  backtrack_path(e.parent, a5)  if e.parent?
  a5 << e.title

  return a5
end

each_link() { |map(&:title).join('/'), url| ... } click to toggle source

# File lib/polyrex-links.rb, line 133
def each_link()

  a = []

  self.each_recursive() do |record, _, i|

      a.slice!(i..-1)
      a[i] = record
      yield(a.map(&:title).join('/'), record.url) if block_given?

  end

end