[YAML] what happened to :SortKeys option to #to_yaml?

ruby-talk
1

I think this used to produce sorted output in 1.8.2:

irb(main):002:0> h = {}
=> {}
irb(main):003:0> 10.times {|i| h[i] = i}
=> 10
irb(main):004:0> puts h.to_yaml(:SortKeys => true)

···

---
5: 5
0: 0
6: 6
1: 1
7: 7
2: 2
8: 8
3: 3
9: 9
4: 4
=> nil

Is there still a way to do this?

--
      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407

2

i just happened to be working on this today

   jib:~/eg/ruby/alib/alib-0.3.1 > cat a.rb
   require "alib"

   oh = ALib::OrderedHash::new

   ("a".."z").to_a.reverse.each{|x| oh = x}

   oh.yaml_inline!

   y oh

   jib:~/eg/ruby/alib/alib-0.3.1 > RUBYLIB=./lib ruby a.rb
   --- { z: z, y: y, x: x, w: w, v: v, u: u, t: t, s: s, r: r, q: q, p: p, o: o, n: n, m: m, l: l, k: k, j: j, i: i, h: h, g: g, f: f, e: e, d: d, c: c, b: b, a: a }

the class is in alib now, but the yaml_inline will break on 1.8.4. releasing soon.

cheers.

-a

···

On Sat, 4 Feb 2006, Joel VanderWerf wrote:

I think this used to produce sorted output in 1.8.2:

irb(main):002:0> h = {}
=> {}
irb(main):003:0> 10.times {|i| h[i] = i}
=> 10
irb(main):004:0> puts h.to_yaml(:SortKeys => true)
---
5: 5
0: 0
6: 6
1: 1
7: 7
2: 2
8: 8
3: 3
9: 9
4: 4
=> nil

Is there still a way to do this?

--
happiness is not something ready-made. it comes from your own actions.
- h.h. the 14th dali lama

3

Not quite the same, is it?

I don't want to preserve the order in which I add keys. I just want the
YAML output to be sorted by key.

Also, I want the old behavior of :SortKeys, which was to do this
recursively to all hashes hanging off the object you call #to_yaml on.

This is mostly for aesthetic reasons (and being able to find keys in the
output doc).

···

ara.t.howard@noaa.gov wrote:

On Sat, 4 Feb 2006, Joel VanderWerf wrote:

I think this used to produce sorted output in 1.8.2:

irb(main):002:0> h = {}
=> {}
irb(main):003:0> 10.times {|i| h[i] = i}
=> 10
irb(main):004:0> puts h.to_yaml(:SortKeys => true)
---
5: 5
0: 0
6: 6
1: 1
7: 7
2: 2
8: 8
3: 3
9: 9
4: 4
=> nil

Is there still a way to do this?

i just happened to be working on this today

  jib:~/eg/ruby/alib/alib-0.3.1 > cat a.rb
  require "alib"

  oh = ALib::OrderedHash::new

  ("a".."z").to_a.reverse.each{|x| oh = x}

  oh.yaml_inline!

  y oh

  jib:~/eg/ruby/alib/alib-0.3.1 > RUBYLIB=./lib ruby a.rb
  --- { z: z, y: y, x: x, w: w, v: v, u: u, t: t, s: s, r: r, q: q, p:
p, o: o, n: n, m: m, l: l, k: k, j: j, i: i, h: h, g: g, f: f, e: e, d:
d, c: c, b: b, a: a }

the class is in alib now, but the yaml_inline will break on 1.8.4.
releasing soon.

cheers.

-a

--
      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407

4

Not quite the same, is it?

you're right.

I don't want to preserve the order in which I add keys. I just want the YAML
output to be sorted by key.

Also, I want the old behavior of :SortKeys, which was to do this recursively
to all hashes hanging off the object you call #to_yaml on.

This is mostly for aesthetic reasons (and being able to find keys in the
output doc).

hmmm. ifirc yaml always does this for hashes now... i may be mistaken though.

i actually hit that same bug today!

-a

···

On Fri, 3 Feb 2006, Joel VanderWerf wrote:

--
happiness is not something ready-made. it comes from your own actions.
- h.h. the 14th dali lama