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(...) True. That's why I suggested a strong recommendation of using whatever comment prefix we will agree on. Then let's say the future L3P -check will raise a warning for omitting that prefix. /Tore (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: LDraw Versioning (Was Re: Backwards Compatibility)
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This thread has grown so much since Friday it's hard to know exactly where to interject.... so I just picked a spot. I'll have more to say later after reading the thread again but wanted to throw a few comments out. (...) YES! Exactly. And one could (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) As Steve would say - LDraw and LEdit exist as a benchmark. I would add - for the _original_ LDraw spec - that is, everything LDraw/LEdit can do. 1.0.0 spec, which is essentially what Kevin is working on - documenting all meta-commands up to (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) We already have a standard comment prefix: 0. For better or for worse, meta-commands are just comments that get interpreted to have meaning. I think it's unrealistic to expect users to remember to add a second comment prefix in addition to the (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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Orion Pobursky wrote: What are we going to do when DOS support in PC OS's goes away completely? I have run into this problem with Windows XP, not so much with LEdit and LDraw--I use L3P more often. Thankfully, there is still a Win98 SE computer in (...) (22 years ago, 15-Mar-03, to lugnet.cad.dev)
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| | Re: LDraw Versioning (Was Re: Backwards Compatibility)
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(...) Excellent suggestion, Wayne. (...) I like this - with one reservation. We should only focus on documenting 1.0.0 right now. Additions, which would go in a future version (1.1.0) are being openly discussed. Actual decisions on that version (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) I disagree. Let's stick with the current method of meta-commands until a standards body officially determines the syntax of future generation commands. No hold on anything, innovation can continue (just in the same disorganized fashion it (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) If tags were the way to go, I agree. BUT, ultimately I side with Kevin, just add comment marks, not meta-command ones. I think that option makes the most sense. But as Dan also said, I'm not a programmer who will be implementing this, so I (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) This is all the main idea behind my suggestion for a branch of the namespace to be considered 'open to all' without discussion. I originally suggested 0 APP appname COMMAND but now I wonder if 0 UNOFFICIAL appname COMMAND, or something (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) Well this was one of the reasons behind my original suggestion. (This thread sure did take off while I was away skiing this weekend.) I suggested that a new meta command group be made today, albeit before the creation of a standards body, so (...) (22 years ago, 17-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) Ah, I see the confusion. In saying //, what I really meant was "0 //", where // is the meta-command that means comment. Rather than place all new meta-commands in <>, or (), or {}, I'd rather have a token that means "the rest of this line is a (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) As I tried to indicate in one of my posts much earlier in this thread, I realized after my original post that the presense of the {} would negate the need for a {META} tag. It would probably work just as well with (). The whole reason I (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | LDraw Versioning (Was Re: Backwards Compatibility)
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(...) All: There are gazillions of file formats out there and most of them have had to undergo some amount format evolution. Format evolution is a healthy and common situation. A common first step towards evolving a file format is to introduce a (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) What I mean is: (URL) for example. Quite corrupted and hard to read - even for us who understand Swedish. ;-) I don't know whether brackets will be cause the same kind of problems, but there is a risk. Then a line from a posted part or model (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) I don't know about American keyboards, but at my Swedish kb, '{' and '}' are at AltGr+7 and AltGr+0, and it collides with Swedish special characters in the ASCII table; it has to be set on codepage 850 or whatever it was. I find them somewhat (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) The exact same argment can be used in favor of dillineated comments. ;-) (...) Nope. Any program that does not recognize // (picking one as an example) simply ignores it. Just like (META). (...) I don't want to get sidetracked here, but (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) right. (...) but you just said you're doing that anyway - "if you do not recognize the first token in a line type 0 record, it is a comment". Is adding '{META}' to the list of recognizable tokens an issue? Also, you don't have to add it - if (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: Backwards Compatibility (Was Calling all Meta-commands)
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(...) I think we cannot ignore the backwards compatibility issue though. What we want is an explicit way to differentiate comments from meta-commands. I think defining an explicit mechanism for comments is completely backward compatible, because if (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | Re: LDraw file spec
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Cool! More thoughts later, I'm off for the afternoon. -Tim (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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| | LDraw file spec
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In light of recent discussion, I'm working on a consolidated file spec. Basically my aim is to combined the original spec with the 'Official' additions and mention the other additions and where to find definitions. The 'Official' group: The original (...) (22 years ago, 16-Mar-03, to lugnet.cad.dev)
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