OpenEuphoria

Re: Detecting the Eu version

• Posted by Jason Gade <jaygade at yahoo.com> Dec 15, 2004
• 575 views

Ferlin Scarborough wrote:
> 
> Unkmar wrote:
> > 
> > So many of you still don't understand the problem.
> > 
> 
> What we need is a Version function added to Euphoria that works something like
> this:
> }}}
<eucode>
> version_message="This program requires Euphoria Version 2.5 or greater!"
> 
> if version("2.5") = 0 then
>   abort_parse()
>   abort(0)
> end if
> </eucode>
{{{

> 
<snip>

Ferlin, the main pont is that version() will never be executed.  The file is
parsed entirely first, so if newer versions have any syntax changes a
compile-time error will occur before any part of the program is executed.

Some people think that an acceptable solution is to cause a deliberate syntax
error that will then print a message and the end user will have to manually edit
the source to fix it.

The second solution is to add a 'stub' program that detects the interpreter
version and either executes it or exits with a message.

The best solution would be for RDS to include a compile-time directive to detect
the version and let the program act accordingly.

Can we let this thread die now?  End users should get all proper files when a
program is distributed to them.  Developers should read the docs and be aware of
what versions they need.

> Ferlin Scarborough
> 
> Learn To Program Games in Free Courses At
> <a href="http://www.gameuniv.net">http://www.gameuniv.net</a>
> 
> My Euphoria Home Page
> <a
> href="http://mywebpage.netscape.com/shadetreesoft">http://mywebpage.netscape.com/shadetreesoft</a>
> 


=====================================
Too many freaks, not enough circuses.

j.