escape_xpath_string

escape_xpath_string.rb

# escape_xpath_string("'Allo 'Allo is the dogs'")
# #=> %Q{concat('',"'",'Allo ',"'",'Allo is the dogs',"'",'')}
#
# ... which is fine, but I'd prefer it if it returned ...
#
# #=> %Q{concat("'",'Allo ',"'",'Allo is the dogs',"'")}
def escape_xpath_string(string)
  return string unless string.include?("'")
  components = string.split("'", -1).map do |component|
    "'#{component}'" unless component == ""
  end.compact
  %{concat("'",#{components.join(%Q{,"'",})},"'")}
end

escape_xpath_string("'Allo 'Allo is the dogs'") # => "concat(\"'\",'Allo ',\"'\",'Allo is the dogs',\"'\")"