Class: WulffeldSlug::PrepareString

Inherits:
Object
  • Object
show all
Defined in:
lib/wulffeld_slug/prepare_string.rb

Constant Summary collapse

VALID_WORD_REGEX = 
/^[\sa-zA-Z0-9-]+$/i

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(words, options = {}) ⇒ PrepareString

Returns a new instance of PrepareString.



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# File 'lib/wulffeld_slug/prepare_string.rb', line 9

def initialize(words, options = {})
  # Original words. Will not be touched.
  @words             = [*words]
  
  # Converted words.
  @slug_words        = []
  
  @options           = options
  @options[:max]   ||= 239
  @options[:case]  ||= :downcase
  @options[:kinds] ||= [:latin, :danish, :norwegian, :german, :swedish, :spanish, :russian, :bulgarian, :cyrillic, :greek, :macedonian, :romanian, :serbian, :ukrainian]
  
  @slug              = ''
  
  prepare_string
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/wulffeld_slug/prepare_string.rb', line 3

def options
  @options
end

#slug ⇒ Object

Returns the value of attribute slug.



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# File 'lib/wulffeld_slug/prepare_string.rb', line 3

def slug
  @slug
end

#words ⇒ Object

Returns the value of attribute words.



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# File 'lib/wulffeld_slug/prepare_string.rb', line 3

def words
  @words
end

Instance Method Details

#prepare_string ⇒ Object

Use dashes to join. www.mattcutts.com/blog/dashes-vs-underscores/



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# File 'lib/wulffeld_slug/prepare_string.rb', line 28

def prepare_string
  prepare_words
  prepare_case
  combine_words
end

#prepare_word(word) ⇒ Object 



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# File 'lib/wulffeld_slug/prepare_string.rb', line 34

def prepare_word(word)
  word = word.dup
  # Blow away apostrophes
  word.gsub! /['`ยด]/, ''

  # @ --> at, and & --> and
  word.gsub! /\s*@\s*/, " at "
  word.gsub! /\s*&\s*/, " and "

  # First see if transliteration produces something worthwhile.
  options[:kinds].each do |kind|
    w = Babosa::Identifier.new(word).transliterate!(kind)
    if w =~ VALID_WORD_REGEX && word.length - w.length < 10
      word = w
      break
    end
  end

  # More brutality needed.
  if word !~ VALID_WORD_REGEX
    potential = []
    options[:kinds].each do |kind|
      potential << Babosa::Identifier.new(word).transliterate!(kind).gsub(/[^\sa-zA-Z0-9]+/i, '-').split('-').map(&:strip).reject(&:blank?).join('-')
    end
    
    potential.sort {|a,b| b.length <=> a.length }.each do |w|
      if w =~ VALID_WORD_REGEX
        word = w
        break
      end
    end
  end

  word.strip!

  # Convert spaces to dashes.
  word.gsub!(/[\s]+/i, '-')

  # Remove non-alpha/num.
  word.gsub!(/[^a-zA-Z0-9-]+/i, '')

  # Remove dashes at start and end of word.
  word.gsub!(/^\-+/, '')
  word.gsub!(/\-+$/, '')

  @slug_words << word unless word.blank?
end