Psych YAML problems

ruby-talk
1

Caught Psych::SyntaxError: (xxxxxx.yaml): couldn't parse YAML at line 168 column 8
        c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:154:in `parse'
        c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:154:in `parse_stream'
        c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:125:in `parse'
        c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:112:in `load'
        c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:229:in `load_file'
...

...
- !ruby/object:Command
  cmd: :cmd_gc <--OFFENDING LINE
  help: runs garbage collection
  name: @gc

Similar previous objects are parsed correctly.
This is the last object in the file.
There are no tabs, contains only \n as linefeeds.

ruby 1.9.3p0 (2011-10-30) [i386-mingw32]

Works in rubies 1.8.[4,6,7] and 1.9.1.

2

I suspect it is @gc, not :cmd_gc:

% ruby19 -rpsych -ryaml -e 'p YAML.dump(:cmd => :cmd_gc)'
"---\n:cmd: :cmd_gc\n"

% ruby19 -rpsych -ryaml -e 'p YAML.dump(:cmd => "@gc")'
"---\n:cmd: ! '@gc'\n"

···

On Feb 3, 2012, at 16:25 , Jon Lambert wrote:

Caught Psych::SyntaxError: (xxxxxx.yaml): couldn't parse YAML at line 168 column 8
      c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:154:in `parse'
      c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:154:in `parse_stream'
      c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:125:in `parse'
      c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:112:in `load'
      c:/apps/ruby193/lib/ruby/1.9.1/psych.rb:229:in `load_file'
...

...
- !ruby/object:Command
cmd: :cmd_gc <--OFFENDING LINE
help: runs garbage collection
name: @gc