Hi @jcl,

If the History variable is not set, the manual says it defaults to the History subfolder.

This appears to be incorrect if HistoryFolder is set in Zorro[Fix].ini. In that case, History defaults to that HistoryFolder, as expected.

This appears to be the only case that HistoryFolder affects History. If the History variable is set, HistoryFolder appears to be ignored.

If History includes a relative path, it is relative to the Zorro folder. This allows specifying a subfolder of History via, f.i., "History\\subfolder\\*.t6".

I would like to be able to use History to specify subfolders of HistoryFolder, in this same way. Is there a way to do that?

If not, can History be enhanced to default to HistoryFolder if specified, so that one could then do, f.i., "subfolder\\*.t6" to point History to HistoryFolder\subfolder\*.t6?

Thanks.

Hi @jcl,

I think in any case History should be initialized to the value of HistoryFolder.

In addition, can History's value be included in the Performance Report as a record of what History was used?

Thanks.

That makes sense. I've put it on the todo list and we'll implement it in a future version.

Update: I have been informed that it is already so. History uses the HistoryFolder unless you enter some other folder. For a subfolder of a different history folder, you must enter the full path.

Hi @jcl,

I just ran a few tests on 2.48:

- Fresh install. Select New Script. At the end of the template that comes up, add "printf("\nHistory=%s", History);". Save. Click Test. Zorro crashes (window just disappears). Log file is 0 bytes.

- Restart Zorro. Add "History="whatever";" before the printf. Save. Click Test. "History=whatever" prints.

- Copy Zorro.ini to ZorroFix.ini. In ZorroFix.ini change HistoryFolder to "somewhere". Restart Zorro. Click Test. Zorro complains there's no history for EUR/USD in somewhere, then prints "History=somewhere".

- Comment out the "History="whatever":" statement. Save. Click Test. Zorro complains there's no history for EUR/USD in somewhere, then prints "History=".

Seems not quite right...

Thanks.

What seems not quite right? The crash?

When you print something without setting it before, it is an empty pointer. It will of course crash.

Thanks @Petra. Based on @jcl's comment above, History should be initialized to HistoryFolder's value, therefore should not be an empty pointer, therefore should not crash! It appears that History is in fact not being initialized...

History is a string to be set by the user. It has no content when you dont set it. And when you set it it defaults to the historyfolder unless you explicitly set a different folder.

https://zorro-project.com/manual/en/script.htm

Thanks @Petra. Actually, the linked page is labelled "Predefined Strings" and says History has a default value when not set by the user. This simply appears not to be the case. At least not completely. It appears to take a non-default HistoryFolder value, but appears to be uninitialized when HistoryFolder is its default "History". I believe it should be initialized in all cases, no?

Hi @jcl. Not sure if you continued following this thread. Thanks for @Petra's help! But it still appears there's a problem/bug in the initialization of History.

What problem do you have still?