Class: REXML::SourceFactory

Inherits:
Object show all
Defined in:
lib/rexml/source.rb

Overview

Generates Source-s. USE THIS CLASS.

Class Method Summary collapse

Class Method Details

.create_from(arg) ⇒ Object

Generates a Source object

Parameters:

  • arg —

    Either a String, or an IO

Returns:

  • a Source, or nil if a bad argument was given



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# File 'lib/rexml/source.rb', line 10

def SourceFactory::create_from(arg)
  if arg.respond_to? :read and
      arg.respond_to? :readline and
      arg.respond_to? :nil? and
      arg.respond_to? :eof?
    IOSource.new(arg)
  elsif arg.respond_to? :to_str
    require 'stringio'
    IOSource.new(StringIO.new(arg))
  elsif arg.kind_of? Source
    arg
  else
    raise "#{arg.class} is not a valid input stream.  It must walk \n"+
      "like either a String, an IO, or a Source."
  end
end