Module: Dyndoc::Converter

Defined in:
lib/dyndoc-converter.rb

Constant Summary collapse

SOFTWARE = 
{}
@@markdown = 
nil

Class Method Summary collapse

Class Method Details

.asciidoctor(code) ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 122

def Converter.asciidoctor(code)
  require 'asciidoctor'
  Asciidoctor.convert(code,:attributes => {"icons" => "font"})
end

.convert(input, format, outputFormat, to_protect = nil) ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 167

def Converter.convert(input,format,outputFormat,to_protect=nil)
  ##
  format=format.to_s unless format.is_a? String
  ## Dyndoc.warn "convert input",[input,format]
  outputFormat=outputFormat.to_s unless outputFormat.is_a? String
  res=""
  input.split("__PROTECTED__FORMAT__").each_with_index do |code,i|
    ##Dyndoc.warn "code",[i,code,format,outputFormat]
    if i%2==0
      res << case format+outputFormat
      when "adoc>html"
        Dyndoc::Converter.asciidoctor(code)
      when "md>html"
        ## DEBUG MODE
        ##tmp=Dyndoc::Converter.markdown(code)
        ##Dyndoc.warn :res,[code,tmp]
        ##tmp
        ## Normal Mode
        Dyndoc::Converter.markdown(code)
      when "md>tex"
        #puts "latex documentclass";p Dyndoc::Utils.dyndoc_globvar("_DOCUMENTCLASS_")
        if Dyndoc::Utils.dyndoc_globvar("_DOCUMENTCLASS_")=="beamer"
          Dyndoc::Converter.pandoc(code,"-t beamer")
        else
          Dyndoc::Converter.pandoc(code,"-t latex")
        end
      when "md>odt"
        ##PandocRuby.new(code, :from => :markdown, :to => :opendocument).convert
        Dyndoc::Converter.pandoc(code,"-t opendocument")
      when "txtl>html"
        # (rc=RedCloth.new(code))
        # rc.hard_breaks=false
        # rc.to_html
        Dyndoc::Converter.pandoc(code,"-f textile -t html")
      when "txtl>tex"
        # RedCloth.new(code).to_latex
        Dyndoc::Converter.pandoc(code,"-f textile -t latex")
      when "ttm>html"
        Dyndoc::Converter.ttm(code,"-e2 -r -y1 -L").gsub(/<mtable[^>]*>/,"<mtable>").gsub("\\ngtr","<mtext>&ngtr;</mtext>").gsub("\\nless","<mtext>&nless;</mtext>").gsub("&#232;","<mtext>&egrave;</mtext>")
      when "tex>odt"
        puts "tex => odt"
        tmp="<text:p><draw:frame draw:name=\""+`uuidgen`.strip+"\" draw:style-name=\"mml-inline\" text:anchor-type=\"as-char\" draw:z-index=\"0\" ><draw:object>"+Dyndoc::Converter.pandoc(code,"--mathml -f latex -t html").gsub(/<\/?p>/,"").gsub(/<(\/?)([^\<]*)>/) {|e| "<"+($1 ? $1 : "")+"math:"+$2+">"}+"</draw:object></draw:frame></text:p>"
        ##p tmp
        tmp
      when "tex>html"
        ##PandocRuby.new(code, :from => :markdown, :to => :html).convert
        Dyndoc::Converter.pandoc(code,"--mathjax -f latex -t html")
      when "ttm>tex", "html>html",'tex>tex'
        code
      else
        ## the rest returns nothing!
        Dyndoc.warn "Warning: unknown conversion!"
        ""
      end
    else
      res << code
    end
    #Dyndoc.warn "res",res
  end
  return (to_protect ? "__PROTECTED__FORMAT__"+res+"__PROTECTED__FORMAT__": res)
end

.markdown(code) ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 151

def Converter.markdown(code)
  if Dyndoc::Converter.markdown_engine == :pandoc
    if Dyndoc::Converter.pandoc_available?
      return Dyndoc::Converter.pandoc(code)
    else
      Converter.markdown_engine=:redcarpet
    end
  end
  if Dyndoc::Converter.markdown_engine == :redcarpet
    Converter.redcarpet(code)
  else
    ## default output if no available engine found
    ""
  end
end

.markdown_engine ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 147

def Converter.markdown_engine
  (@@markdown_engine ||= :pandoc)
end

.markdown_engine=(engine) ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 142

def Converter.markdown_engine=(engine)
   @@markdown_engine=engine unless Dyndoc::Converter.markdown_engine == engine

end

.mathlink(input) ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 27

def Converter.mathlink(input)
  unless SOFTWARE[:mathlink]
    cmd=`type "math"`
    unless cmd.empty?
      require 'mathematica'
      SOFTWARE[:mathlink]=Mathematica::Mathematica.new.start  #cmd.strip.split(" ")[2] unless cmd.empty?
    end
  end
  SOFTWARE[:mathlink] ? SOFTWARE[:mathlink].eval_foreground(input) : ""
end

.pandoc(input, opt = '') ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 71

def Converter.pandoc(input,opt='')
  output = ''
  if Converter.pandoc_available?
    ##DEBUG: p [:pandoc_soft, SOFTWARE[:pandoc]+" #{opt}"]
    if input
      ##DEBUG: p [:pandoc_iput,input]
      ##DEBUG: p [:pandoc_options, opt]
      Open3::popen3(SOFTWARE[:pandoc]+" #{opt}") do |stdin, stdout, stderr|
        stdin.puts input
        stdin.close
        output = stdout.read.strip
      end
      ##DEBUG: p [:pandoc_output,output]
      output
    else
      ##DEBUG: p SOFTWARE[:pandoc]+" #{opt}"
      system(SOFTWARE[:pandoc]+" #{opt}")
    end
  else
    if $dyn_logger
      $dyn_logger.write("ERROR pandoc: software not installed!\n")
    else
      Dyndoc.warn "ERROR pandoc: software not installed!\n"
    end
    ""
  end
end

.pandoc_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dyndoc-converter.rb', line 57

def Converter.pandoc_available?
  unless SOFTWARE[:pandoc]
    if File.exist? File.join(ENV["HOME"],".cabal","bin","pandoc")
      SOFTWARE[:pandoc]=File.join(ENV["HOME"],".cabal","bin","pandoc")
    else
      cmd = Dyndoc.which_path("pandoc")
      SOFTWARE[:pandoc]=cmd unless cmd.empty?
      #cmd=`type "pandoc"`
      #SOFTWARE[:pandoc]=cmd.strip.split(" ")[2] unless cmd.empty?
    end
  end
  SOFTWARE[:pandoc]
end

.pdflatex(input, opt = '') ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 38

def Converter.pdflatex(input,opt='')
  output = ''
  unless SOFTWARE[:pdflatex]
    cmd=`type "pdflatex"`
    SOFTWARE[:pdflatex]=cmd.strip.split(" ")[2] unless cmd.empty?
  end
  if SOFTWARE[:pdflatex]
    Open3.popen3("#{SOFTWARE[:pdflatex]} #{opt}") {|stdin,stdout,stderr|
      stdin.print input
      stdin.close
      output=stdout.read
    }
    return nil
  else
    $dyn_logger.write("ERROR pdflatex: software not installed!\n")
    return nil
  end
end

.redcarpet(code) ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 137

def Converter.redcarpet(code)
    Dyndoc::Converter.redcarpet_engine ? @@markdown.render(code) : ""
end

.redcarpet_engine ⇒ Object 



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# File 'lib/dyndoc-converter.rb', line 129

def Converter.redcarpet_engine
  unless @@markdown
    require 'redcarpet'
    @@markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML)
  end
  @@markdown
end

.ttm(input, opt = '-e2') ⇒ Object

ttm converter



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# File 'lib/dyndoc-converter.rb', line 100

def Converter.ttm(input,opt='-e2')
#puts "ttm:begin"
  output=nil
  unless SOFTWARE[:ttm]
    cmd=`type "ttm"`
    SOFTWARE[:ttm]=cmd.strip.split(" ")[2] unless cmd.empty?
  end
  if SOFTWARE[:ttm]
    Open3.popen3("#{SOFTWARE[:ttm]} #{opt}") {|stdin,stdout,stderr|
    	stdin.print input
    	stdin.close
    	output=stdout.read
  #puts "ttm:wait"
    }
  #puts "ttm:end"
    output.gsub("__VERBATIM__","verbatim").sub(/\A\n*/,"") #the last is because ttm adds 6 \n for nothing!
  else
     $dyn_logger.write("ERROR ttm: software not installed!\n")
    ""
  end
end