/usr/lib/ruby/vendor_ruby/erubis/helpers/rails_helper.rb is in ruby-erubis 2.7.0-3.
This file is owned by root:root, with mode 0o644.
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### $Release: 2.7.0 $
### copyright(c) 2006-2011 kuwata-lab.com all rights reserved.
###
require 'erubis'
require 'erubis/preprocessing'
module Erubis
class Eruby
include ErboutEnhancer # will generate '_erbout = _buf = ""; '
end
class FastEruby
include ErboutEnhancer # will generate '_erbout = _buf = ""; '
end
module Helpers
##
## helper module for Ruby on Rails
##
## howto:
##
## 1. add the folliwng code in your 'config/environment.rb'
##
## require 'erubis/helpers/rails_helper'
## #Erubis::Helpers::RailsHelper.engine_class = Erubis::Eruby # or Erubis::FastEruby
## #Erubis::Helpers::RailsHelper.init_properties = {}
## #Erubis::Helpers::RailsHelper.show_src = false # set true for debugging
## #Erubis::Helpers::RailsHelper.preprocessing = true # set true to enable preprocessing
##
## 2. restart web server.
##
## if Erubis::Helper::Rails.show_src is true, Erubis prints converted Ruby code
## into log file ('log/development.log' or so). if false, it doesn't.
## if nil, Erubis prints converted Ruby code if ENV['RAILS_ENV'] == 'development'.
##
module RailsHelper
#cattr_accessor :init_properties
@@engine_class = ::Erubis::Eruby
#@@engine_class = ::Erubis::FastEruby
def self.engine_class
@@engine_class
end
def self.engine_class=(klass)
@@engine_class = klass
end
#cattr_accessor :init_properties
@@init_properties = {}
def self.init_properties
@@init_properties
end
def self.init_properties=(hash)
@@init_properties = hash
end
#cattr_accessor :show_src
@@show_src = nil
def self.show_src
@@show_src
end
def self.show_src=(flag)
@@show_src = flag
end
#cattr_accessor :preprocessing
@@preprocessing = false
def self.preprocessing
@@preprocessing
end
def self.preprocessing=(flag)
@@preprocessing = flag
end
## define class for backward-compatibility
class PreprocessingEruby < Erubis::PreprocessingEruby # :nodoc:
end
module TemplateConverter
## covert eRuby string into ruby code
def _convert_template(template) # :nodoc:
#src = ::Erubis::Eruby.new(template).src
klass = ::Erubis::Helpers::RailsHelper.engine_class
properties = ::Erubis::Helpers::RailsHelper.init_properties
show_src = ::Erubis::Helpers::RailsHelper.show_src
show_src = ENV['RAILS_ENV'] == 'development' if show_src.nil?
## preprocessing
if ::Erubis::Helpers::RailsHelper.preprocessing
preprocessor = _create_preprocessor(template)
template = preprocessor.evaluate(_preprocessing_context_object())
_logger_info "** Erubis: preprocessed==<<'END'\n#{template}END\n" if show_src
end
## convert into ruby code
src = klass.new(template, properties).src
#src.insert(0, '_erbout = ')
_logger_info "** Erubis: src==<<'END'\n#{src}END\n" if show_src
return src
end
def _create_preprocessor(template)
return PreprocessingEruby.new(template, :escape=>true)
end
def _preprocessing_context_object
return self
end
def _logger_info(message)
logger.info message
end
end
end
end
end
class ActionView::Base # :nodoc:
include ::Erubis::Helpers::RailsHelper::TemplateConverter
include ::Erubis::PreprocessingHelper
private
# convert template into ruby code
def convert_template_into_ruby_code(template)
#ERB.new(template, nil, @@erb_trim_mode).src
return _convert_template(template)
end
end
require 'action_pack/version'
rails22 = false
if ActionPack::VERSION::MAJOR >= 2 ### Rails 2.X
if ActionPack::VERSION::MINOR >=2 ### Rails 2.2, 2.3 or higher
rails22 = true
module ActionView
module TemplateHandlers
class ErubisHandler < TemplateHandler
include Compilable
include ::Erubis::Helpers::RailsHelper::TemplateConverter
include ::Erubis::PreprocessingHelper
def compile(template)
#src = ::ERB.new("<% __in_erb_template=true %>#{template.source}", nil, erb_trim_mode, '@output_buffer').src
return _convert_template("<% __in_erb_template=true %>#{template.source}")
end
end
end
handler_klass = TemplateHandlers::ErubisHandler
Template.register_default_template_handler :erb, handler_klass
Template.register_template_handler :rhtml, handler_klass
end
module Erubis::Helpers::RailsHelper::TemplateConverter
def _logger_info(message)
#logger.info message # logger.info seems not available in Rails 2.2
ActionController::Base.new.logger.info message
end
end
elsif ActionPack::VERSION::MINOR >=1 ### Rails 2.1
module ActionView
module TemplateHandlers # :nodoc:
class ErubisHandler < TemplateHandler
include Compilable
include Erubis::Helpers::RailsHelper::TemplateConverter
include Erubis::PreprocessingHelper
#
def compile(template)
return _convert_template(template.source) # template.is_a?(ActionView::Template)
end
def logger #:nodoc:
return @view.controller.logger
end
def _preprocessing_context_object #:nodoc:
return @view.controller.instance_variable_get('@template')
end
#
def cache_fragment(block, name = {}, options = nil) #:nodoc:
@view.fragment_for(block, name, options) do
#eval(ActionView::Base.erb_variable, block.binding)
eval('_buf', block.binding)
end
end
end
end
handler_klass = TemplateHandlers::ErubisHandler
Template.register_default_template_handler :erb, handler_klass
Template.register_template_handler :rhtml, handler_klass
end
elsif ActionPack::VERSION::TINY >= 2 ### Rails 2.0.X (X >= 2)
module ActionView
module TemplateHandlers # :nodoc:
class ErubisHandler < TemplateHandler
include Erubis::Helpers::RailsHelper::TemplateConverter
include Erubis::PreprocessingHelper
def compile(template)
return _convert_template(template) # template.is_a?(String)
end
def logger #:nodoc:
return @view.controller.logger
end
def _preprocessing_context_object #:nodoc:
return @view.controller.instance_variable_get('@template')
end
end
end
Base.class_eval do
handler_klass = TemplateHandlers::ErubisHandler
register_default_template_handler :erb, handler_klass
register_template_handler :rhtml, handler_klass
end
end
else ### Rails 2.0.0 or 2.0.1
class ActionView::Base # :nodoc:
private
# Method to create the source code for a given template.
def create_template_source(extension, template, render_symbol, locals)
if template_requires_setup?(extension)
body = case extension.to_sym
when :rxml, :builder
content_type_handler = (controller.respond_to?(:response) ? "controller.response" : "controller")
"#{content_type_handler}.content_type ||= Mime::XML\n" +
"xml = Builder::XmlMarkup.new(:indent => 2)\n" +
template +
"\nxml.target!\n"
when :rjs
"controller.response.content_type ||= Mime::JS\n" +
"update_page do |page|\n#{template}\nend"
end
else
#body = ERB.new(template, nil, @@erb_trim_mode).src
body = convert_template_into_ruby_code(template)
end
#
@@template_args[render_symbol] ||= {}
locals_keys = @@template_args[render_symbol].keys | locals
@@template_args[render_symbol] = locals_keys.inject({}) { |h, k| h[k] = true; h }
#
locals_code = ""
locals_keys.each do |key|
locals_code << "#{key} = local_assigns[:#{key}]\n"
end
#
"def #{render_symbol}(local_assigns)\n#{locals_code}#{body}\nend"
end
end
end #if
else ### Rails 1.X
if ActionPack::VERSION::MINOR > 12 ### Rails 1.2
class ActionView::Base # :nodoc:
private
# Create source code for given template
def create_template_source(extension, template, render_symbol, locals)
if template_requires_setup?(extension)
body = case extension.to_sym
when :rxml
"controller.response.content_type ||= 'application/xml'\n" +
"xml = Builder::XmlMarkup.new(:indent => 2)\n" +
template
when :rjs
"controller.response.content_type ||= 'text/javascript'\n" +
"update_page do |page|\n#{template}\nend"
end
else
#body = ERB.new(template, nil, @@erb_trim_mode).src
body = convert_template_into_ruby_code(template)
end
#
@@template_args[render_symbol] ||= {}
locals_keys = @@template_args[render_symbol].keys | locals
@@template_args[render_symbol] = locals_keys.inject({}) { |h, k| h[k] = true; h }
#
locals_code = ""
locals_keys.each do |key|
locals_code << "#{key} = local_assigns[:#{key}]\n"
end
#
"def #{render_symbol}(local_assigns)\n#{locals_code}#{body}\nend"
end
end
else ### Rails 1.1
class ActionView::Base # :nodoc:
private
# Create source code for given template
def create_template_source(extension, template, render_symbol, locals)
if template_requires_setup?(extension)
body = case extension.to_sym
when :rxml
"xml = Builder::XmlMarkup.new(:indent => 2)\n" +
"@controller.headers['Content-Type'] ||= 'application/xml'\n" +
template
when :rjs
"@controller.headers['Content-Type'] ||= 'text/javascript'\n" +
"update_page do |page|\n#{template}\nend"
end
else
#body = ERB.new(template, nil, @@erb_trim_mode).src
body = convert_template_into_ruby_code(template)
end
#
@@template_args[render_symbol] ||= {}
locals_keys = @@template_args[render_symbol].keys | locals
@@template_args[render_symbol] = locals_keys.inject({}) { |h, k| h[k] = true; h }
#
locals_code = ""
locals_keys.each do |key|
locals_code << "#{key} = local_assigns[:#{key}] if local_assigns.has_key?(:#{key})\n"
end
#
"def #{render_symbol}(local_assigns)\n#{locals_code}#{body}\nend"
end
end
end #if
## make h() method faster (only for Rails 1.X)
module ERB::Util # :nodoc:
ESCAPE_TABLE = { '&'=>'&', '<'=>'<', '>'=>'>', '"'=>'"', "'"=>''', }
def h(value)
value.to_s.gsub(/[&<>"]/) {|s| ESCAPE_TABLE[s] }
end
module_function :h
end
end ###
## finish
ActionController::Base.new.logger.info "** Erubis #{::Erubis::VERSION}"
$stdout.puts "** Erubis #{::Erubis::VERSION}" if rails22
|