Class: Temple::Filters::Encoding

Inherits:
Parser show all
Defined in:
lib/temple/filters/encoding.rb

Overview

Try to encode input string

Constant Summary

Constants included from Utils

Utils::ESCAPE_HTML, Utils::ESCAPE_HTML_PATTERN

Instance Attribute Summary

Attributes included from Mixins::Options

#options

Instance Method Summary collapse

Methods included from Mixins::Options

included, #initialize

Methods included from Utils

#empty_exp?, #escape_html, #escape_html_safe, #indent_dynamic, #unique_name

Instance Method Details

#call(s) ⇒ Object 



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# File 'lib/temple/filters/encoding.rb', line 10

def call(s)
  if options[:encoding] && s.respond_to?(:encoding)
    old_enc = s.encoding
    s = s.dup if s.frozen?
    s.force_encoding(options[:encoding])
    # Fall back to old encoding if new encoding is invalid
    unless s.valid_encoding?
      s.force_encoding(old_enc)
      s.force_encoding(::Encoding::BINARY) unless s.valid_encoding?
    end
  end
  s
end