Class: Texta::T

Inherits:
String show all
Defined in:
lib/texta.rb

Instance Method Summary collapse

Methods included from StringAdapter

#texta

Constructor Details

#initialize(html) ⇒ T

Returns a new instance of T.



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# File 'lib/texta.rb', line 42

def initialize(html)
  body = Nokogiri.HTML(html).css("body").first
  super children(body).join("\n")
end

Instance Method Details

#children(node) ⇒ Object 



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# File 'lib/texta.rb', line 47

def children(node)
  nodes = node.children.map do |n|
    process(n)
  end.compact
end

#process(node) ⇒ Object 



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# File 'lib/texta.rb', line 53

def process(node)
  case node.name
  when "meta", "link", "style"
    ""
    
  # bold
  when "b", "strong"
    "**" + children(node).join(" ") + "**"
  # italic
  when "i", "em"
    "_" + children(node).join(" ") + "_"
  # plain
  when "u", "span", "font"
    children(node).join(" ")
  when "p", "div"
    children(node).join(" ") + "\n"
  when "br"
    "\n"

  # links
  when "a"
    return ""
    return "" unless node["href"]
    "[" + children(node).join(" ") + "]" + "(" + node["href"] + ")"

  # headlines
  when /h([1-2])/
    char = $1 == "1" ? "=" : "-"
    s = children(node).join(" ")
    "#{s}\n" + char * [ [s.length, 6].min, 32 ].max + "\n\n"
  when /h([1-6])/   
    "#" * $1.to_i + " " + children(node).join(" ") + "\n\n"
  
  # images
  
  when "img"
    alt = node["alt"]
    alt = nil if alt == ""
    alt = node["title"] if !alt

    if alt && alt != ""
      "[#{alt}]"
    end
    
  # text nodes

  when "text"
    s = node.to_s.gsub(/(^\s+)|(\s+$)/, "")
    s == "" ? nil : s 
  
  # tables
  
  when "table"
    children(node).join("")
  when "tr"
    children(node).join(" ") + "\n"
  when "th"
    "**" + children(node).join(" ") + "**"
  when "td"
    children(node).join(" ")

  # lists

  when "ul"
    children(node).map { |s| "- #{s}\n" }.join + "\n"
  when "li"
    children(node).join(" ")

  when "comment"
    ""
  else
    raise Error, "node <#{node.name}>"
  end
end