Problem with Ruby 1.9.3 RC1 and YAML files

I am trying to get ruby 1.9.3 rc1 to work and it fails because of my
yaml files:

psych.rb:154:in `parse’: (/test/system.yml): couldn’t parse YAML at line
0 column 0 (Psych::SyntaxError)

If I do this however:

YAML::ENGINE.yamler = ‘syck’

And then load the same yaml file, everything works.

Now the problem is …

I do not know why psych hates my yaml files and I do not know
whether it is easy to fix. But my yaml files are critical,
and I would rather simply want to use syck and not bother about
psych, as psych chokes on yaml files which were easily usable
with syck (and older ruby versions).

Is that possible or am I stuck now?

Ideally, what I would love to tell ruby would be to permanently
use syck as the default YAML Engine to use and completely ignore
psych everywhere. But I do not want to do this:

YAML::ENGINE.yamler = ‘syck’
require ‘yaml’

In all my .rb files that need to use yaml …

HELP!

2011/10/1 Luis L. [email protected]

Either you stick to 1.9.2 and Syck or help us solve any possible issue
with YAML files.


Luis L.


Posted via http://www.ruby-forum.com/.

Is this a related problem:

$ uname -a
Linux rcc 2.6.32-24-generic #38-Ubuntu SMP Mon Jul 5 09:20:59 UTC 2010
x86_64 GNU/Linux

$ ruby -v
ruby 1.9.3dev (2011-09-23 revision 33323) [x86_64-linux]

$ sudo gem install rake
/usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>’:
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your
ruby.

Prasad

Marc H. wrote in post #1024429:

I am trying to get ruby 1.9.3 rc1 to work and it fails because of my
yaml files:

psych.rb:154:in `parse’: (/test/system.yml): couldn’t parse YAML at line
0 column 0 (Psych::SyntaxError)

Does your yaml files contains tabs or UTF BOM identifications?

Please include a sample of your YAML files so we can do testing.

Psych is the default YAML parser of 1.9.3, issues with it should be
addressed (if valid)

Either you stick to 1.9.2 and Syck or help us solve any possible issue
with YAML files.


Luis L.

On Mon, Oct 3, 2011 at 9:01 AM, prasad [email protected] wrote:

2011/10/1 Luis L. [email protected]

Either you stick to 1.9.2 and Syck or help us solve any possible issue
with YAML files.

/usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>’:
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.

The cause could be this:

$ cat -n ruby-1.9.pc
1 arch=i386-cygwin
2 sitearch=${arch}
3 prefix=/usr/local
4 exec_prefix=${prefix}
5 bindir=${exec_prefix}/bin
6 libdir=${exec_prefix}/lib
7 includedir=${prefix}/include
8 MAJOR=1
9 MINOR=9
10 TEENY=1
11 ruby_version=1.9.1
12 RUBY_PROGRAM_VERSION=1.9.3
13 RUBY_BASE_NAME=ruby
14 RUBY_SO_NAME=${RUBY_BASE_NAME}191
15 RUBY_INSTALL_NAME=${RUBY_BASE_NAME}19
16 DEFFILE=
17 LIBPATH=
18 LIBRUBY_A=lib${RUBY_SO_NAME}-static.a
19 LIBRUBY_SO=cyg${RUBY_SO_NAME}.dll
20 LIBRUBY=lib${RUBY_SO_NAME}.dll.a
21 LIBRUBYARG_SHARED=-l${RUBY_SO_NAME}
22 LIBRUBYARG_STATIC=-l${RUBY_SO_NAME}-static
23 LIBRUBYARG=${LIBRUBYARG_SHARED}
24 LIBS=-lpthread -lrt -ldl -lcrypt
25 DLDFLAGS= -Wl,–enable-auto-image-base,–enable-auto-import
26 ruby=${bindir}/${RUBY_INSTALL_NAME}.exe
27 rubyhdrdir=${includedir}/${RUBY_BASE_NAME}-${ruby_version}
28 vendorhdrdir=${rubyhdrdir}/vendor_ruby
29 sitehdrdir=${rubyhdrdir}/site_ruby
30
31 Name: Ruby
32 Description: Object Oriented Script Language
33 Version: ${ruby_version}
34 URL: http://www.ruby-lang.org
35 Cflags: -I${rubyhdrdir}/${arch} -I${rubyhdrdir}
36 Libs: ${DLDFLAGS} ${LIBRUBYARG_SHARED} ${LIBS}
37 Requires:

See line 10, 11 and 14. Is this the way it must be?

Kind regards

robert

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