Class: AdLocalize::Sanitizers::IOSToAndroidSanitizer

Inherits:
Object
  • Object
show all
Defined in:
lib/ad_localize/sanitizers/ios_to_android_sanitizer.rb

Instance Method Summary collapse

Instance Method Details

#sanitize(value:) ⇒ Object 



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# File 'lib/ad_localize/sanitizers/ios_to_android_sanitizer.rb', line 5

def sanitize(value:)
  return if value.blank?

  processedValue = value.gsub(/(?<!\\)'/, '&#39;') # match ' unless there is a \ before
  processedValue = processedValue.gsub(/(?<!\\)\"/, '&#34;') # match " unless there is a \ before
  processedValue = processedValue.gsub(">", '&gt;')
  processedValue = processedValue.gsub("<", '&lt;')
  hasFormatting = processedValue.match(/(%(\d+\$)?@)/)
  processedValue = processedValue.gsub(/(%(\d+\$)?@)/, '%\2s') # should match values like %1$s and %s
  hasFormatting = hasFormatting || processedValue.match(/(%((\d+\$)?(\d+)?)i)/)
  processedValue = processedValue.gsub(/(%((\d+\$)?(\d+)?)i)/, '%\2d') # should match values like %i, %3$i, %01i, %1$02i
  # On Android, '%' must be escaped with a second '%' if and only if the string has at least one formatting pattern. In this specific case,
  # a Java formatting method will be used which interprets every non escaped '%' as the start of a formatting pattern.
  if hasFormatting
    processedValue = processedValue.gsub(/%(?!((\d+\$)?(s|(\d+)?d)))/, '%%') # negative lookahead: identifies when user really wants to display a %
  else
    processedValue = processedValue.gsub(/%(?!((\d+\$)?(s|(\d+)?d)))/, '%') # negative lookahead: identifies when user really wants to display a %
  end
  processedValue = processedValue.gsub("\\U", "\\u")
  processedValue = processedValue.gsub(/&(?!((#\d+)|(\w+));)/, '&#38;')
  processedValue = processedValue.gsub(/&/) { |match| match.replace('\&') }
  "\"#{processedValue}\""
end