Module: Slideshow::Syntax::ShHelper

Included in:
Gen
Defined in:
lib/slideshow/helpers/syntax/sh_helper.rb

Constant Summary collapse

SH_LANG =

sh option defaults

'ruby'
SH_LINE_NUMBERS = 
'true'

Instance Method Summary collapse

Instance Method Details

#sh_worker(code, opts) ⇒ Object 



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# File 'lib/slideshow/helpers/syntax/sh_helper.rb', line 11

def sh_worker( code, opts )
  
  lang         = opts.fetch( :lang, headers.get( 'code-language', SH_LANG ))
  line_numbers_value = opts.fetch( :line_numbers, headers.get( 'code-line-numbers', SH_LINE_NUMBERS ))
  line_numbers = (line_numbers_value =~ /true|yes|on/i) ? true : false
     
  # note: code gets highlighted at runtime in client (using JavaScript)  
  code_highlighted = CGI::escapeHTML( code )
  
  css_class = 'code'
  css_class_opt = opts.fetch( :class, nil ) #  large, small, tiny, etc.
  css_class << " #{css_class_opt}" if css_class_opt   # e.g. use/allow multiple classes -> code small, code large, etc.
   
  out =  %{<div class='#{css_class}'><pre class='brush: #{lang} toolbar: false gutter: #{line_numbers ? 'true' : 'false'}'>}
  out << code_highlighted
  out << %{</pre></div>\n}
    
  name        = opts.fetch( :name, nil )
  txmt_value  = opts.fetch( :txmt, headers.code_txmt )
  txmt        = (txmt_value =~ /true|yes|on/i) ? true : false
    
  # add optional href link for textmate
  if name
    out << %{<div class="codeurl">}
    out << %{<a href="txmt://open?url=file://#{File.expand_path(name)}">} if txmt  
    out << name
    out << %{</a>} if txmt
    out << %{</div>\n}
  end
          
  return out 
end

#sv(*args, &blk) ⇒ Object 



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# File 'lib/slideshow/helpers/syntax/sh_helper.rb', line 44

def sv( *args, &blk )   
  # check for optional hash for options
  opts = args.last.kind_of?(Hash) ? args.pop : {}
   
  code = capture_erb(&blk)
  return if code.empty?
    
  code_highlighted = sv_worker( code, opts )
    
  concat_erb( guard_block( code_highlighted ), blk.binding )
  return
end