Re: YPath into nested omaps

> >      sauce = "--- !map
> >  - a:
> >    - !omap
> >      - sku         : BL394D
> >      - quantity    : 4
> >      - description : Basketball
> >  - b: two"
> >      o = YAML::parse(sauce)
> >      p o.emit

> How close is YPath to working there? '/a/sku' should work, right?

I got this to work:

    assert_equal 'BL394D', o.select('/0/a/0/0/sku')[0].value

The technical problem is I can't tell if it follows the chain of Seq
and Map objects that represent the OMap, or if there are too many
redundant /0 segments.

The esthetic problem is I'm trying to write a paper, and I need to
show low-level elegance here.

Curiously, '//a//sku' works correctly! I will proceed with that tweak...

-- 
  Phlip
  http://c2.com/cgi/wiki?ZeekLand  <-- NOT a blog!!

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