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Article 2 of 10 in IE
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%From: $C11 RDW   (Roderick Widdowson) $B0
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How do I initialise null buffers. (IE what is the null stream called on
the fred machine / why doesn't IE like N: or :N)

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%From: $C11 RWT   (Rainer Thonnes) $B0
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> How do I initialise null buffers.
What a pervert!  Can't think why you'd want to...
> (IE what is the null stream called on the fred machine?
It is indeed called :n.
> why doesn't IE like N: or :N)
Probably because it attempts to access files, not streams.

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%From: $C11 RDW   (Roderick Widdowson) $B0
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%Date: $C11 25/02/85 at 10.24 $B0
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>> How do I initialise null buffers.
> What a pervert!  Can't think why you'd want to...

The reason was that I wanted to create a file (while still in the editor)
This is one of the nasty hacks that IE lets you do.  (it used to be the only
way of duplicating buffers

>> why doesn't IE like N: or :N)
> Probably because it attempts to access files, not streams.
Dead right, judging from the trace the file is Z 'ed down.  I'm told the
incantation is nl: (shades of VMS) which is wrong

---
PS   "its a long day and it ain't going any faster
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%From: $C11 RMM   (Richard Marshall) $B0
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The incantation is indeed "NL:", which is, as you say, wrong.
The reason is that when IE was firts mounted on the Fred Machine all that
was definite was ".N" in VECCE.  As I (in my perverse fashion) wanted to
create files called ".N" this was very annoying!    "N" is much better than
"NL:" as someone called Nigel Lawson would have all his files disappear.

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%From: $C11 GDMR   (George Ross) $B0
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> From: RMM   (Richard Marshall)
> The incantation is indeed "NL:", which is, as you say, wrong.
> The reason is that when IE was firts mounted on the Fred Machine all that
> was definite was ".N" in VECCE.  As I (in my perverse fashion) wanted to
> create files called ".N" this was very annoying!    "N" is much better than
> "NL:" as someone called Nigel Lawson would have all his files disappear.
> 
Wasn't 'N' defined to be some pile of system stuff when the single-character
"username" business was promulgated?

(Personally, I don't see anything wrong in taking some of the possible set of
valid things for some special use.  UNIX has '/', the filestores won't like
passwords with ',' in them, etc., not to mention, of course, the "file"
DIRECTORY.  You can create it.  You can write to it.  You can access open it
again using OpenMod.  Just try and OpenR it again, though!)

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%From: $C11 DAK   (David Kerr) $B0
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What would the initial reaction be if I asked:
"Could IE be translated into PASCAL (say) or C and then ported onto
 something like an IBM PC for example using a comercial PASCAL
 compiler"

My initial thoughts are yes possible, but Yuk 7000 odd lines of code!
Alternatively is there any other way of puting IE on other machines
which don't support IMP (yet?). Would it be easier to put IMP on the
other machines then port IE?

Comments please. etc etc etc

  David

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I will leave this one to richard, its more his field.  But I always thought
that, as a superset of C, Imp could be compiled using C you just say

#DEFINE $%start  {
#DEFINE $%begin  {
#DEFINE $%end    }
#DEFINE $%finish }
and so forth

By the way, this belong in some other topic but I dunno which one

---
PS   "its a long day and it ain't going any faster
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%From: $C11 NC   (! "V2" C Development FDC) $B0
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Missed out a lot of smiley faces there, didn't you Rod ? :-)

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%From: $C11 GDMR   (George Ross) $B0
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> What would the initial reaction be if I asked:
> "Could IE be translated into PASCAL (say) or C and then ported onto
>  something like an IBM PC for example using a comercial PASCAL
>  compiler"

Yes, but almost certainly quicker to rewrite it from scratch!  It needs
rewritten, anyway.

> Alternatively is there any other way of puting IE on other machines
> which don't support IMP (yet?). Would it be easier to put IMP on the
> other machines then port IE?

You'd probably be quicker rewriting IE (from scratch).  Alternatively, LLL
have lots of back ends for various machines -- that would give you decent
Imp, Pascal and C, and anything else they happen to come up with.

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TOPIC IE
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This is a forum for the discussion of the IE Editor.

It should contain comments, suggestions, bug reports etc.

Created by: NEWS_S
Date: 18/02/85 at 16.18
2$C6 RDW$C20 IE bug $B0
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5$C6 RMM$C20 IE and Null buffers $B0
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7$C6 DAK$C20 IE portability $B0
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