to_yaml and options hash

[Ara.T.Howard]

iccording to the docs, this should emit the version:

~/eg/ruby > ruby -r yaml -e 'print([0,1,2].to_yamlUseVersion => true))'

but it simply outputs

---
- 0
- 1
- 2

other options seem to be ignored too Separator, etc). my questions are

a) what's up with the options hash? it does not seem to work the way the
docs imply:

...
puts [[ 'Crispin', 'Glover' ]].to_yaml( :Indent => 4, :UseHeader => true, :UseVersion => true )
# prints:
# --- %YAML:1.0
# -
# - Crispin
# - Glover
...

~/eg/ruby > ruby -r yaml -e "puts [['Crispin','Glover']].to_yamlIndent=>4,:UseHeader=>true,:UseVersion=>true)"
---
-
- Crispin
- Glover



b) is there an option that will cause

[ 0, 1, 2 ].to_yaml

to be emitted as

[ 0, 1, 2 ]

rather than

---
- 0
- 1
- 2


thanks for any assistance.

-a
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