OpenEuphoria

Re: How check for "path/file exists"?

• Posted by Kat <gertie at PELL.NET> Sep 03, 2000
• 471 views

On 3 Sep 2000, at 19:13, Dan B Moyer wrote:

> Wolf, all,
>
> How can I check for whether a specified "path/file" exists??
>
> I'm trying to use Wolf's "jumpto" (or perhaps his "ShellExecute2") to run
> another program from within my program (to jump to it); when this is a
> program with a "stable" path, no problem.  But I'm wanting to be able to
> jump to Wolf's tutorial, which isn't always at a known place in the Euphoria
> folder, so I need to be able to *test* for whether the path/file I
> tentatively specify actually exists or not, so I can activate the "open
> file" dialog if it doesn't.
>
> I changed Wolf's "jumpto" to a function, thinking to use the return as a
> test, but while it worked if the path was correct, when the path/file wasn't
> correct it just bombed & output an error message about "can't open file".
>
> Any thoughts?

Try opening the file for a read before you try to exec it. If it cannot be
opened, then it's
not there or it's locked,, either way, you can't run it.

Kat