Contents

require 'plezi/activation'
require 'plezi/router/router'

module Plezi
  module_function

  # attempts to convert a string's encoding to UTF-8, but only when the string is a valid UTF-8 encoded string.
  def try_utf8!(string, encoding = ::Encoding::UTF_8)
    return nil unless string
    string.force_encoding(::Encoding::ASCII_8BIT) unless string.force_encoding(encoding).valid_encoding?
    string
  end

  # Sanitizes hash data, attempting to "rubyfy" any Hash Strings to reversible Ruby objects. i.e:
  #
  #          {"go" => "<tag>home</tag>", "now" => "false", "count" => "8", "float" => "0.7", "empty" => ""}
  #
  # Will become:
  #
  #          {go: "&lt;tag>home&lt;/tag&gt;", now: false, count: 8, float: "0.7", empty: nil}
  #
  # As you may notice, float Strings aren't "rubyfied". Any "rubyfied" object will revert back to the same String form using `to_s`.
  def rubyfy(hash)
    case hash
    when Hash
      cpy = Hash.new(&hash_proc_4symstr)
      hash.each { |k, v| cpy[k.is_a?(String) ? k.to_sym : k] = rubyfy(v) }
      hash = cpy
    when String
      hash = if hash.empty?
               nil
             elsif hash.to_i.to_s == hash
               hash.to_i
             elsif hash == 'true'.freeze
               true
             elsif hash == 'false'.freeze
               false
             else
               ERB::Util.h try_utf8!(hash)
             end
    when Array
      hash = hash.map { |i| rubyfy(i) }
    end
    hash
  end

  # Catches String/Symbol mixups. Add this to any Hash using Hash#default_proc=
  def hash_proc_4symstr
    @hash_proc_4symstr ||= proc do |hash, key|
      case key
      when String
        tmp = key.to_sym
        hash.key?(tmp) ? hash[tmp] : nil
      when Symbol
        tmp = key.to_s
        hash.key?(tmp) ? hash[tmp] : nil
      end
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
plezi-0.14.4	lib/plezi/helpers.rb
plezi-0.14.3	lib/plezi/helpers.rb
plezi-0.14.2	lib/plezi/helpers.rb
plezi-0.14.1	lib/plezi/helpers.rb
plezi-0.14.0	lib/plezi/helpers.rb