Class: Vortex::StringUtils

Inherits:
Object
  • Object
show all
Defined in:
lib/vortex_client/string_utils.rb

Overview

String utilities

Class Method Summary collapse

Class Method Details

.create_filename(sentence) ⇒ Object

Turn a normal sentence into a valid, readable filename.

Example:

"A small test" => "a-small-test.html"



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# File 'lib/vortex_client/string_utils.rb', line 15

def self.create_filename(sentence)
  if(sentence.size > 10)then
    truncated_title = sentence.sub(/:.*/,"").sub(/;/,"").sub(/&/,"").sub(/\(/,"").sub(/\)/,"")
    html_filename = self.snake_case(truncated_title)
  else
    html_filename = self.snake_case(sentence)
  end

  # Just keep the 100 first chars, to nearest word.
  if(html_filename.size > 100)then
    html_filename = html_filename.gsub(/\.html$/,"")
    html_filename = html_filename[0..100]
    html_filename = html_filename.gsub(/_[^_]*$/,"") + ".html"
  end
  return html_filename
end

.remove_accents(str) ⇒ Object

Filter accents and some special characters



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# File 'lib/vortex_client/string_utils.rb', line 52

def self.remove_accents(str)
  accents = {
    ['á','à','â','ä','ã','Ã','Ä','Â','À'] => 'a',
    ['é','è','ê','ë','Ë','É','È','Ê'] => 'e',
    ['í','ì','î','ï','I','Î','Ì'] => 'i',
    ['ó','ò','ô','ö','õ','Õ','Ö','Ô','Ò'] => 'o',
    ['œ'] => 'e',
    ['ß'] => 'ss',
    ['ú','ù','û','ü','U','Û','Ù'] => 'u',
    ['æ'] => 'ae',
    ['ø'] => 'o',
    ['å'] => 'a',
    ['Æ'] => 'ae',
    ['Ø'] => 'o',
    ['Å'] => 'a',
    ['§'] => ''
  }
  accents.each do |ac,rep|
    ac.each do |s|
      str.gsub!(s, rep)
    end
  end

  # Remove the rest of the accents and special characters
  conv = Iconv.new("ASCII//TRANSLIT//IGNORE", "UTF-8")
  str = conv.iconv(str)
  return str
end

.snake_case(camel_cased_word_input) ⇒ Object 



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# File 'lib/vortex_client/string_utils.rb', line 32

def self.snake_case(camel_cased_word_input)
  camel_cased_word = camel_cased_word_input + "" # create local copy of string
  camel_cased_word = remove_accents(camel_cased_word)
  camel_cased_word = camel_cased_word.to_s.gsub(/::/, '/').
    gsub(/([A-Z]+)([A-Z][a-z])/,'\1\2').
    gsub(/([a-z\d])([A-Z])/,'\1\2').downcase

  camel_cased_word = camel_cased_word.to_s.gsub(/ /,'-')
  camel_cased_word = camel_cased_word.to_s.gsub(/^_/,'')
  camel_cased_word = camel_cased_word.gsub("__","_")

  # sanitize the string
  camel_cased_word = camel_cased_word.gsub(/[^a-z._0-9 -]/i, "").
    tr(".", "_").gsub(/(\s+)/, "_").gsub(/_/, '-').downcase
  camel_cased_word = camel_cased_word.to_s.gsub(/--*/,'-')
  return camel_cased_word
end