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RfD: One-time file loading   Message List  
Reply | Forward Message #41 of 425 |
Re: [forth200x] RfD: One-time file loading

> > I would argue that since INCLUDE isn't specified (but should
> > be) both REQUIRE and INCLUDE can be specified as desired.
>
> My interpretation is that since the standard does not explicitly
> allow that INCLUDED changes, e.g., BASE, in a standard system
> INCLUDED must leave BASE alone, just like : must leave BASE and
> the search order alone, or like most other words must leave them
> alone.

No - I said INCLUDE - not INCLUDED. Again, this is why wording
like " functionality of <name>" is important. INCLUDE and
REQUIRE are *not* standard words, and consequently my proposed
behaviour is just a matter of opinion until that name is claimed
in a future standard.

> The standard does not allow that INCLUDED does something to the
> dictionary. However, allowing that would simplify the
> implementation of REQUIRED (the filename could be stored in a
> special wordlist), and probably would not break existing
> programs; Win32Forth already does this, and apparently nobody has
> complained about it. So one might consider adding this
> restriction to INCLUDED.

Remove? But then VFX Forth has done this by default since its
introduction and so have other MPE systems before VFX. This
makes VFX Forth non-compliant. Are we going to change it? Not
until someone gives a compelling reason for the change. Non-
compliance is not a compelling reason alone. The rationale
behind the rule may be, if it applies to the system.

Stephen
--
Stephen Pelc, stephen@...
MicroProcessor Engineering Ltd - More Real, Less Time
133 Hill Lane, Southampton SO15 5AF, England
tel: +44 23 80 631441, fax: +44 23 80 339691
web: http://www.mpeforth.com - free VFX Forth downloads



Thu Jan 12, 2006 9:40 am

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Message #41 of 425 |
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The HTML version of this RfD is <http://www.complang.tuwien.ac.at/forth/ansforth/required.html> CHANGE HISTORY 2001-08-14: Changed stack effect from ( i*x...
Anton Ertl
anton@...
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Jan 2, 2006
3:20 pm

... In MPE Forths, REQUIRES refers to the module mechanism. However, since REQUIRED and REQUIRE do not produce a name conflict, I can live with these names. As...
Stephen Pelc
sfprem
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Jan 9, 2006
12:44 pm

... So should I change, e.g., "perform INCLUDED" into "perform the function of INCLUDED"? Or do you have a bigger change in mind? ... Currently INCLUDED is...
Anton Ertl
anton@...
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Jan 10, 2006
7:05 pm

... No - that's enough. ... I would argue that since INCLUDE isn't specified (but should be) both REQUIRE and INCLUDE can be specified as desired. Setting base...
Stephen Pelc
sfprem
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Jan 11, 2006
8:13 pm

... My interpretation is that since the standard does not explicitly allow that INCLUDED changes, e.g., BASE, in a standard system INCLUDED must leave BASE...
Anton Ertl
anton@...
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Jan 11, 2006
10:59 pm

... No - I said INCLUDE - not INCLUDED. Again, this is why wording like " functionality of <name>" is important. INCLUDE and REQUIRE are *not* standard words,...
Stephen Pelc
sfprem
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Jan 12, 2006
9:38 am

... Ok. In that case, I see two options: - We want to allow that behaviour of INCLUDE along with behaviour that does not change the BASE (since both variants...
Anton Ertl
anton@...
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Jan 12, 2006
9:23 pm

... Seems good enough, although a statement that it is legal just to select DECIMAL would be more direct. As a side note, the MPE standard source file template...
Stephen Pelc
sfprem
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Jan 13, 2006
10:23 am

... IMO get-context get-current base @ only forth definitions decimal at the start and base ! set-current set-context at the end is better style (and actually...
Anton Ertl
anton@...
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Jan 13, 2006
10:03 pm

... Ugly, ugly, ugly! Yes, it works, but it's guru code. Most of our clients really don't want to know this sort of stuff and the crash caused when there's a...
Stephen Pelc
sfprem
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Jan 17, 2006
12:22 pm
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