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# Redmine - project management software
# Copyright (C) 2006-2016 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
module Redmine
module SyntaxHighlighting
class << self
attr_reader :highlighter
def highlighter=(name)
if name.is_a?(Module)
@highlighter = name
else
@highlighter = const_get(name)
end
end
def highlight_by_filename(text, filename)
highlighter.highlight_by_filename(text, filename)
rescue
ERB::Util.h(text)
end
def highlight_by_language(text, language)
highlighter.highlight_by_language(text, language)
rescue
ERB::Util.h(text)
end
def language_supported?(language)
if highlighter.respond_to? :language_supported?
highlighter.language_supported? language
else
true
end
rescue
false
end
end
module CodeRay
require 'coderay'
def self.retrieve_supported_languages
::CodeRay::Scanners.list +
# Add CodeRay scanner aliases
::CodeRay::Scanners.plugin_hash.keys.map(&:to_sym) -
# Remove internal CodeRay scanners
%w(debug default raydebug scanner).map(&:to_sym)
end
private_class_method :retrieve_supported_languages
SUPPORTED_LANGUAGES = retrieve_supported_languages
class << self
# Highlights +text+ as the content of +filename+
# Should not return line numbers nor outer pre tag
def highlight_by_filename(text, filename)
language = ::CodeRay::FileType[filename]
language ? ::CodeRay.scan(text, language).html(:break_lines => true) : ERB::Util.h(text)
end
# Highlights +text+ using +language+ syntax
# Should not return outer pre tag
def highlight_by_language(text, language)
::CodeRay.scan(text, language).html(:wrap => :span)
end
def language_supported?(language)
SUPPORTED_LANGUAGES.include?(language.to_s.downcase.to_sym)
rescue
false
end
end
end
end
SyntaxHighlighting.highlighter = 'CodeRay'
end
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