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That a bury interesting idea. Of corpse I'd like to reply, intern, but the weather's enbalm-y state and I'd rather go out and play.
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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If they had them late it would be dark!
Monday starts Diarrhea awareness week, runs until Friday!
JaxCoder.com
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And will the early worm get the bird?
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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Is this another of your crypt-ic clues?
If you can't laugh at yourself - ask me and I will do it for you.
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I hope you all realize that we're all just "worm bait on the hoof".
We have technology and ultimately medical care improvements for the simple reason that, since worms don't have refrigeration, it keeps us fresh longer.
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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The other day I went to the zoo and there was just one small dog in a cage.
I guess you could say it was a Shih tzu!
Monday starts Diarrhea awareness week, runs until Friday!
JaxCoder.com
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"Sh*t zoo" === "Shih Tzu"
- I would love to change the world, but they won’t give me the source code.
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There is something fishy going on here - I know he's carp at puns, but ...
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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Phew! I small a rat!
... no sorry, it's just my mouse, I miss steak.
after many otherwise intelligent sounding suggestions that achieved nothing the nice folks at Technet said the only solution was to low level format my hard disk then reinstall my signature. Sadly, this still didn't fix the issue!
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lopatir wrote: I miss steak.
...that's what the vegan said.
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Forogar wrote: "Sh*t zoo" === "Shih Tzu"
okayyyyyy.  Thanks for the enlightenment. 
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It'll really be a bitch if that canine's a female.
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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you know pretty much all women have female canines (though some don't have any wisdom left).
after many otherwise intelligent sounding suggestions that achieved nothing the nice folks at Technet said the only solution was to low level format my hard disk then reinstall my signature. Sadly, this still didn't fix the issue!
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if it were an Afghan could you pet it, wear it, eat it, or shake hands with it?
after many otherwise intelligent sounding suggestions that achieved nothing the nice folks at Technet said the only solution was to low level format my hard disk then reinstall my signature. Sadly, this still didn't fix the issue!
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Despite all his rage
He was just a dog in a cage
GCS d--(d+) s-/++ a C++++ U+++ P- L+@ E-- W++ N+ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t+ 5? X R+++ tv-- b+(+++) DI+++ D++ G e++ h--- r+++ y+++* Weapons extension: ma- k++ F+2 X
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I've got a coding problem that I don't know if there's a solution to and it's pretty important.
This isn't a coding question. It's more of a rant.
When a bottom up parser parses input it kind of does things backward.
You get your inputs into the queue:
1. term a
2. term b
3. non-term C
Then a reduce action with a rule
4. Reduce D-> a b C
which tells me to pop C, b, a, and then push D, effectively "replacing" the first 3 entries with 1 entry from step 4
This is all well and good, except when there's errors in the input
let's say there was an error parsing step 1 above - and the error recovery "ate" 2 and 3 leaving me with
1. error #ERROR
Well even if i figured out to reduce to D (which i probably wouldn't) I have the wrong number of items on the stack.
So my tree building fails.
I've tried inserting artificial tokens. I've tried rule rewriting, nothing works. I don't have enough information at any given point to reconstruct what's left of the tree. 
So I can do a pull parse on it, but the tree can't be generated from the input.
i get my info back with a class that works like XmlReader with the pull parser
but there's no way to generate a hierarchy for it because the tree is built from the leaves to the root, and a corrupt subtree will corrupt its parents due to the stack issue - and that's IF you don't wind up ending early by trying to pop from an empty stack!
This is my life right now. I never did solve this problem last time I encountered it either.
EDIT: Woo I got it working somewhat
Real programmers use butterflies
modified 20-Feb-20 10:35am.
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Maybe I am reading it wrong, but it's confusing... are you saying that even if you hit an error you still want to continue parsing anyway? Surely if the input in invalid then it should just terminate?
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Yes, I want to continue.
Could you imagine if C#'s compiler stopped at the first parse error?
Real programmers use butterflies
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But that parser has an easier job.
It seems to me that it starts counting matching brackets top down, and if they match up it parses the stuff in between brackets bottom up.
modified 20-Feb-20 10:28am.
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No, it is all bottom up. It recognizes things called viable prefixes using a state machine. When it recognizes a right hand side, it removes that from the stack and replaces it with the appropriate reduction.
Real programmers use butterflies
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Tested a bit, and it seems you're right.
But in a file with 500 rows, one well placed bracket renders 80 errors.
Now factor in how many man years MS has poured into VS.
The lady witch doth protest too much, methinks
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Yeah. What's interesting is a team at Microsoft Research reimplemented the C# front-end to use a GLR parser like the one I've made. It's not used in production though.
Real programmers use butterflies
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honey the codewitch wrote: Could you imagine if C#'s compiler stopped at the first parse error?
Or the converse, which I encountered many years ago in PASCAL -- a forgotten semicolon would result it reams, and I mean REAMS of "missing ;" errors. Stupid parser.
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I left a full stop off the end of a line of COBOL once and managed to get 82 error messages - none of which said "missing full stop".
- I would love to change the world, but they won’t give me the source code.
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