Class: ActionView::Template::Handlers::ERB

Inherits:
Object
  • Object
show all
Defined in:
lib/action_view/template/handlers/erb.rb,
lib/action_view/template/handlers/erb/erubi.rb more...

Defined Under Namespace

Classes: Erubi

Constant Summary collapse

ENCODING_TAG = 
Regexp.new("\\A(<%#{ENCODING_FLAG}-?%>)[ \\t]*")

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.call(template, source) ⇒ Object

[View source]

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# File 'lib/action_view/template/handlers/erb.rb', line 24

def self.call(template, source)
  new.call(template, source)
end

Instance Method Details

#call(template, source) ⇒ Object

[View source]

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# File 'lib/action_view/template/handlers/erb.rb', line 36

def call(template, source)
  # First, convert to BINARY, so in case the encoding is
  # wrong, we can still find an encoding tag
  # (<%# encoding %>) inside the String using a regular
  # expression
  template_source = source.b

  erb = template_source.gsub(ENCODING_TAG, "")
  encoding = $2

  erb.force_encoding valid_encoding(source.dup, encoding)

  # Always make sure we return a String in the default_internal
  erb.encode!

  # Strip trailing newlines from the template if enabled
  erb.chomp! if strip_trailing_newlines

  options = {
    escape: (self.class.escape_ignore_list.include? template.type),
    trim: (self.class.erb_trim_mode == "-")
  }

  if ActionView::Base.annotate_rendered_view_with_filenames && template.format == :html
    options[:preamble] = "@output_buffer.safe_append='<!-- BEGIN #{template.short_identifier} -->';"
    options[:postamble] = "@output_buffer.safe_append='<!-- END #{template.short_identifier} -->';@output_buffer.to_s"
  end

  self.class.erb_implementation.new(erb, options).src
end

#handles_encoding? ⇒ Boolean

Returns:

  • (Boolean)
[View source]

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# File 'lib/action_view/template/handlers/erb.rb', line 32

def handles_encoding?
  true
end

#supports_streaming? ⇒ Boolean

Returns:

  • (Boolean)
[View source]

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# File 'lib/action_view/template/handlers/erb.rb', line 28

def supports_streaming?
  true
end