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Save all vars. and everything
Message
From
15/07/2006 15:12:48
Dragan Nedeljkovich (Online)
Now officially retired
Zrenjanin, Serbia
 
 
To
15/07/2006 01:57:10
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9 SP1
Miscellaneous
Thread ID:
01136273
Message ID:
01136703
Views:
9
>>If Mark's idea was to dump variables into a text file of some sort just for debugging purposes, then List Status is the way. Save/Restore is just plain dirty IMO, and very risky. It may have unexpected effects.
>
>I agree with your points (especially the prefixing stuff). But it is also astonishingly fast if you have complex array structures in need of persistence - it is also an arrow to keep in mind for interprocess communication if large amounts of data need to be exchanged. "Dirty" is not always bad (and never if WE do it <bg>).

Just today I've found a bit of code where I had a bunch of g_* prefixed variables (in my old DOS code that I'm converting) in a .mem file, and it read them from the file, saved again into a memo in a temp cursor, then stuffed them in name-type-value triplets into an array:
rest from g_var
save to memo mm
n=occu('G_',mm)
dime var(n,3)
set text on
for u=1 to n
	gdev=at('G_',mm,u)
	gcut=subs(mm,gdev,16)
	gname=left(gcut,at(chr(0),gcut)-1)
	gtype=subs(gcut,12,1)
	var(u,1)=Proper(gname)
    var(u,2)= gtype
	var(u,3)=eval(gname)
endf
Then I used this array to generate a .prg which'd have all these variables set as globals. But that's pretty much the only place where I used the Save command.

I agree, if you know the dangers and know how to apply proper limits, Save/Restore may be the tool of choice for some situations.

To Tore: see, it's not encrypted, just somewhat binary :).

back to same old

the first online autobiography, unfinished by design
What, me reckless? I'm full of recks!
Balkans, eh? Count them.
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