Evaluating contents of a string

[drathbone]

Hi,

I'm trying to parse a load of text and have a string that contains the following &quot;if endurance_percent < 50&quot;.

There's loads of these lines that I need to check, but what I need to do is evaluate if the line would be true or false, so if the string X contained the above, is there anyway I can do something like IF X THEN..... ??

I've written the program in Perl and use the EVAL function, but I'm now trying to port it to VB6.

Also, it would prove difficult to pull out the individual parts of the string and evaluate them, as the string may contain numerous checks, like &quot;if endurance_percent < 50 and score = 1 and opponent = weak....&quot;.

Hope someone can help...
Darren Rathbone

 

[sunaj]

Hi,

There is no EVAL function in VB (unfortunately). You have a few options, parte the entire file (a paint to program and as you mention not easy for the more complex expressions). Use VBScript or an evaluator (See thread222-1859).

Good Luck Sunaj
'The gap between theory and practice is not as wide in theory as it is in practice'

 

[rvBasic]

VB Script Control may be your best friend: have a look at

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/vtoriVBScript.asp

for additional information.

VB scripting contains a EVAL/EXECUTE statements and is pretty much based on Perl's scripting capabilities.

Other usefull information can be found in
VBSCRIPT in a Nutshell
Mat Childs, Paul Lomax & Ron Petrusha
O'Reilly
1-56692-720-6



_________________________________
In theory, there is no difference between theory and practice. In practice, there is. [attributed to Yogi Berra]

 

[drathbone]

Thanks.

I've no experience with VBSCript, but it sounds the way to go. I presume that there's a control that'll let me use VB Script within a VB 6 application.

Anyway, I'll have a dig around and see what I can come up with.

Thanks again for your help.