Map forum?

[philippeqc]

although less than 24 hours ago I attempted to write a parser based on Armagetron's code (since I'm not familiar with libxml). That got me wondering if a parser should parse

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<Wall><Point x="10" y="0"/><Point x="20" y="0"/><RestorePos/><Point x="-10" y="0"/><Point x="-20" y="0"/></Wall>

with the same results as

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<Wall><Point x="10" y="0"/><Point x="20" y="0"/></Wall><Wall><Point x="-10" y="0"/><Point x="-20" y="0"/></Wall>

, or maybe not at all (even though it works in Armagetron).

You seem to be lacking a SavePos in the first example, so I dont know the value to pop out of RestorePos.

I've seen the code. It starts a new wall (same if you SavePos before Point). But the point is, is this officially supported ("because the game does it") and should any parser accept it?

Hi Jonathan,

I've investigated your question and my answer is "no, it is not officially supported.". It is mostly an unexpected behavior. SavePos and RestorePos are now deprecated, so I'd keep to their formal definition.

-ph

Nota: it was quite a twisted question there. Very good observation. I failed to understand it for a while as I kept thinking about its purpose, not the exact code. Sorry for the delay.

[Jonathan]

I've investigated your question and my answer is "no, it is not officially supported.". It is mostly an unexpected behavior. SavePos and RestorePos are now deprecated, so I'd keep to their formal definition.

OK. So it is unspecified/undefined behavior.

Nota: it was quite a twisted question there. Very good observation. I failed to understand it for a while as I kept thinking about its purpose, not the exact code.

Hehe. Sometimes I just somehow see unexpected stuff in code. Like the (now fixed) bug which allowed me to kick z-man off his own server "by the server administrator".

Sorry for the delay.

No problem.