Class: ExtendedHtml

Inherits:
SM::ToHtml
  • Object
show all
Defined in:
lib/wee-pm/slideshtml.rb

Direct Known Subclasses

SlidesHtml

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#block_processor ⇒ Object

We’re invoked with a potential external hyperlink.

mailto:

just gets inserted.

http:

links are checked to see if they reference an image. If so, that image gets inserted using an <img> tag. Otherwise a conventional <a href> is used.



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# File 'lib/wee-pm/slideshtml.rb', line 12

def block_processor
  @block_processor
end

Instance Method Details

#accept_verbatim(am, fragment) ⇒ Object 



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# File 'lib/wee-pm/slideshtml.rb', line 95

def accept_verbatim(am, fragment)
  lines = fragment.txt.split("\n")

  # remove leading whitespace
  margin = if lines.first =~ /^(\s+)/ then $1.size else 0 end
  if lines.all? {|l| l[0, margin].strip.empty? }
    lines.map!{|l| l[margin..-1]}
  end

  first_line = lines.first.strip

  case first_line
  when  /^\!\!([^:]*)(:(.*))?$/
    processor, option = $1, $3
    @res << @block_processor.call(processor, option, lines[1..-1].join("\n"))
  else
    @res << annotate("<pre>")
    output = CGI.escapeHTML(lines.join("\n"))

    # strip whitespaces on the right
    if pos = (output =~ /\s*\z/)
      output = output[0,pos] 
    end

    @res << output
    @res << annotate("</pre>") << "\n"
  end
end

#handle_special_HYPERLINK(special) ⇒ Object 



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# File 'lib/wee-pm/slideshtml.rb', line 14

def handle_special_HYPERLINK(special)
  url = special.text
  if url =~ /([A-Za-z]+):(.*)/
    type = $1
    path = $2
  else
    # www.
    type = "http"
    path = url
    url  = "http://#{url}"
  end

  img_attrs = {}
  if type == "http" &&  url =~ /\.(gif|png|jpg|jpeg|bmp)((;.*)?)$/   #((;\w+[=][^;]*)*)
    if $2.nil? or $2.empty?
      attr_size = 0
    else
      attr_size = $~.offset(2)[1] - $~.offset(2)[0]
      m = $2.to_s[1..-1]
      m.split(";").each {|a| 
        k, v = a.split("=", 2)
        img_attrs[k] = v
      }
    end

    s = img_attrs.keys.grep(/^\d+x\d+$/)
    width, height = s.first.split("x", 2) if s.size == 1
    width = img_attrs['w'] || img_attrs['width'] || width
    height = img_attrs['h'] || img_attrs['height'] || height

    attrs = ""
    attrs << 'width="' + width + '" ' if width 
    attrs << 'height="' + height + '" ' if height 
    attrs << 'style="float: left;padding-right: 40px;" ' if img_attrs['floating'] == 'left'

    src = 
    if path[0,2] == "./"
      path[2..(-1-attr_size)]
    elsif path[0,2] == "//"
      "http:" + path[0..(-1-attr_size)]
    else
      "http://" + path[0..(-1-attr_size)]
    end
    %{<a href="#{src}"><img src="#{src}" #{ attrs } border="0"></a>}
  else
    "<a href=\"#{url}\">#{url.sub(%r{^\w+:/*}, '')}</a>"
  end
end

#handle_special_RUBYTALK(special) ⇒ Object 



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# File 'lib/wee-pm/slideshtml.rb', line 63

def handle_special_RUBYTALK(special)
  if special.text =~ /^ruby-talk:(\d+)$/
    num = $1.to_i
    %(<a href="http://rubytalk.com/cgi-bin/scat.rb/ruby/ruby-talk/#{ num }">ruby-talk:#{ num }</a>)
  else
    raise
  end
end

#handle_special_TIDYLINK(special) ⇒ Object

Here’s a hypedlink where the label is different to the URL

<label>[url]



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# File 'lib/wee-pm/slideshtml.rb', line 76

def handle_special_TIDYLINK(special)
  text = special.text
  unless text =~ /\{(.*?)\}\[(.*?)\]/ or text =~ /(\S+)\[(.*?)\]/ 
    return text
  end
  label = $1
  url   = $2
  
  if url !~ /\w+?:/ 
    if url =~ /\./
      url = "http://#{url}"
      #else
      #return find_wiki_word(url, label)
    end
  end
  
  "<a href=\"#{url}\">#{label}</a>"
end