Class: DamageControl::DiffHtmlizer

Inherits:
Object
  • Object
show all
Defined in:
lib/damagecontrol/diff_htmlizer.rb

Overview

Visitor that can visit an array of diffs and produce nice HTML TODO: add line numbers.

Instance Method Summary collapse

Constructor Details

#initialize(io) ⇒ DiffHtmlizer

Creates a new DiffHtmlizer that will write HTML to the IO object io when visiting an array of diffs.



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# File 'lib/damagecontrol/diff_htmlizer.rb', line 8

def initialize(io)
  @io = io
end

Instance Method Details

#visitDiff(diff) ⇒ Object 



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# File 'lib/damagecontrol/diff_htmlizer.rb', line 12

def visitDiff(diff)
  @io << "<div>\n"
end

#visitDiffEnd(diff) ⇒ Object 



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# File 'lib/damagecontrol/diff_htmlizer.rb', line 16

def visitDiffEnd(diff)
  @io << "</div>\n"
end

#visitLine(line) ⇒ Object 



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# File 'lib/damagecontrol/diff_htmlizer.rb', line 20

def visitLine(line)
  if(line.removed?)
    @io << "<pre class='diff' id='removed'>"
    if(line.removed)
      @io << line.prefix.html_encoded
      @io << "<span id='removedchars'>"
      @io << line.removed.html_encoded
      @io << "</span>"
      @io << line.suffix.html_encoded
    else
      @io << line.html_encoded
    end
    @io << "</pre>"
  elsif(line.added?)
    @io << "<pre class='diff' id='added'>"
    if(line.added)
      @io << line.prefix.html_encoded
      @io << "<span id='addedchars'>"
      @io << line.added.html_encoded
      @io << "</span>"
      @io << line.suffix.html_encoded
    else
      @io << line.html_encoded
    end
    @io << "</pre>"
  else
    @io << "<pre class='diff' id='context'>"
    @io << line.html_encoded
    @io << "</pre>"
  end
end