I took another look at the library this morning and I agree with Jeff Garland that this library has potential. Howewver, it is hard to get my head around this library becouse it contains two very different things: 1) a recursive property-tree container and 2) six parsers to populate this container. I'm not a low-level container author so I cant speak to the merits pro/con of this implementation of a recursive property-tree. Nevertheless, I would like the review to focus on this, without regard to the parser grammers. I think that my objections could be resolved by removing the six-parsers from the review. Assuming the "property-tree" container is approved, lets schedule another review for these six-parsers. Either all of them at once, or one at a time. If the library author would be willing to delay the review the parser grammers until later this year, I might be persuaded to give this library another review.