Chris@0: # Redmine - project management software
Chris@1494: # Copyright (C) 2006-2014  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@909: #
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@909: #
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: module Redmine
Chris@0:   module SyntaxHighlighting
Chris@909: 
Chris@0:     class << self
Chris@0:       attr_reader :highlighter
Chris@909: 
Chris@0:       def highlighter=(name)
Chris@0:         if name.is_a?(Module)
Chris@0:           @highlighter = name
Chris@0:         else
Chris@0:           @highlighter = const_get(name)
Chris@0:         end
Chris@0:       end
Chris@1517: 
Chris@1517:       def highlight_by_filename(text, filename)
Chris@1517:         highlighter.highlight_by_filename(text, filename)
Chris@1517:       rescue
Chris@1517:         ERB::Util.h(text)
Chris@1517:       end
Chris@1517: 
Chris@1517:       def highlight_by_language(text, language)
Chris@1517:         highlighter.highlight_by_language(text, language)
Chris@1517:       rescue
Chris@1517:         ERB::Util.h(text)
Chris@1517:       end
Chris@0:     end
Chris@909: 
Chris@0:     module CodeRay
Chris@0:       require 'coderay'
Chris@909: 
Chris@0:       class << self
Chris@0:         # Highlights +text+ as the content of +filename+
Chris@0:         # Should not return line numbers nor outer pre tag
Chris@0:         def highlight_by_filename(text, filename)
Chris@0:           language = ::CodeRay::FileType[filename]
Chris@1115:           language ? ::CodeRay.scan(text, language).html(:break_lines => true) : ERB::Util.h(text)
Chris@0:         end
Chris@909: 
Chris@0:         # Highlights +text+ using +language+ syntax
Chris@0:         # Should not return outer pre tag
Chris@0:         def highlight_by_language(text, language)
Chris@1115:           ::CodeRay.scan(text, language).html(:wrap => :span)
Chris@0:         end
Chris@0:       end
Chris@0:     end
Chris@0:   end
Chris@909: 
Chris@0:   SyntaxHighlighting.highlighter = 'CodeRay'
Chris@0: end