RDoc -f option and RDOCOPT demonstration

gistfile1.txt

√ quintus@ikarus => ~/Desktop/abc
$ echo $RDOCOPT

√ quintus@ikarus => ~/Desktop/abc
$ cat test.rb 
#This is the Foo class.
class Foo

  #This is the bar method.
  def bar
    puts "Hello, World!"
  end

end
√ quintus@ikarus => ~/Desktop/abc
$ export RDOCOPT="-f hanna"
√ quintus@ikarus => ~/Desktop/abc
$ rdoc test.rb
Parsing sources...
100% [ 1/ 1]  test.rb                                                           

Generating Hanna format into /home/quintus/Desktop/abc/doc...

Files:      1

Classes:    1 (0 undocumented)
Modules:    0 (0 undocumented)
Constants:  0 (0 undocumented)
Attributes: 0 (0 undocumented)
Methods:    1 (0 undocumented)

Total:      2 (0 undocumented)
100.00% documented

Elapsed: 0.3s
√ quintus@ikarus => ~/Desktop/abc
$ rm -r doc
√ quintus@ikarus => ~/Desktop/abc
$ rdoc -f darkfish test.rb
invalid options: -f generator already set to hanna
(invalid options are ignored)
Parsing sources...
100% [ 1/ 1]  test.rb                                                           

Generating Hanna format into /home/quintus/Desktop/abc/doc...

Files:      1

Classes:    1 (0 undocumented)
Modules:    0 (0 undocumented)
Constants:  0 (0 undocumented)
Attributes: 0 (0 undocumented)
Methods:    1 (0 undocumented)

Total:      2 (0 undocumented)
100.00% documented

Elapsed: 0.2s
√ quintus@ikarus => ~/Desktop/abc
$