Re: YAML and blanks

On Apr 19, 2:16 pm, Dan Stromberg <[email protected]> wrote:
> We have a build process that uses YAML - pyyaml specifically, not
> pyyaml-legacy.
>
> When our automated processes put things in the YAML files, the YAML
> parsing works.  But every once in a while a human adds something to a
> YAML file, and sometimes these humans don't add blanks after the colons,
> and then the process blows up.
>
> I've been asked to come up with a YAML parser that will be more lenient
> about not having a blank after a colon.  EG, right now, this doesn't
> work for us:
>
> invoice: 34843
> date   : 2001-01-23
> bill-to: &id001
>      given  :Chris
>      family : Dumars
>
> ...because "given  :Chris" has no space after the colon.
>
> So I have some questions:
> 1) Is there already a YAML parser that relaxes this?
> 2) How can I tell what version of pyyaml we are using?  I see the module
> names match those of pyyaml, but when grep'ing those modules for
> "version", I don't see anything that looks like a version string
> 3) I see that pyyaml's trunk has a "tests" directory - how would I
> invoke these?  Can anyone comment on how comprehensive these tests are?
> 4) Does pyyaml currently insist on a blank after a colon for a good
> reason?  Would eliminating the requirement introduce an ambiguity?

Maybe a simple pre-parser suffice?

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