module CGI::Util

Utility methods for CGI.

Public Instance Methods

Source

# File lib/cgi/util.rb, line 35
def pretty(string, shift = "  ")
  lines = string.gsub(/(?!\A)<.*?>/m, "\n\\0").gsub(/<.*?>(?!\n)/m, "\\0\n")
  end_pos = 0
  while end_pos = lines.index(/^<\/(\w+)/, end_pos)
    element = $1.dup
    start_pos = lines.rindex(/^\s*<#{element}/i, end_pos)
    lines[start_pos ... end_pos] = "__" + lines[start_pos ... end_pos].gsub(/\n(?!\z)/, "\n" + shift) + "__"
  end
  lines.gsub(/^((?:#{Regexp::quote(shift)})*)__(?=<\/?\w)/, '\1')
end

Prettify (indent) an HTML string.

string is the HTML string to indent. shift is the indentation unit to use; it defaults to two spaces.

print CGI.pretty("<HTML><BODY></BODY></HTML>")
  # <HTML>
  #   <BODY>
  #   </BODY>
  # </HTML>

print CGI.pretty("<HTML><BODY></BODY></HTML>", "\t")
  # <HTML>
  #         <BODY>
  #         </BODY>
  # </HTML>

rfc1123_date (time)

Source

# File lib/cgi/util.rb, line 14
def rfc1123_date(time)
  time.getgm.strftime("%a, %d %b %Y %T GMT")
end

Format a Time object as a String using the format specified by RFC 1123.

CGI.rfc1123_date(Time.now)
  # Sat, 01 Jan 2000 00:00:00 GMT