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Re: ANS' EVALUATE and related issues

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Rod Pemberton <do_not_have@notemailnot.cmm> wrote:
> 
> 6.1.1360 EVALUATE
> "[...] Make the string described by 'c-addr' and 'u' both the input source
> and input buffer, [...] "
> 
> Does that mean I can CMOVE the EVALUATE string to TIB?

No, because

  foo bar evaluate baz bonce

typed into the TIB must work.

> Or, must the original string in it's original location be parsed?
> It says to make the string *described* by ...  It doesn't say the
> original string, in the original location, must be used or parsed in
> place.  Is that an acceptable interpretation?  Or, am I placing
> emphasis where it's not present?  What is the intent here?  I.e., is
> it legitimate to copy the original string to another buffer and
> process that secondary buffer?

Sure, use a buffer elsewhere as long as it doesn't overwrite anything
else.

> That's what I did, copying it to TIB .  That works - via INTERPRET
> calling WORD.  Basically, the EOL of the prior input is not detected
> when "0 >IN !" is set by EVALUATE.  So, INTERPRET continues parsing
> instead of return to QUIT when EVALUATE is executed.  Is using PAD
> as the secondary buffer acceptable too?

No.  TIB belongs to the user.

> 3.3.3.5 Input Buffers
> "[...] or a buffer specified by EVALUATE.  In all cases, SOURCE returns the
> beginning address and length in characters of the current input buffer."
> 
> Does that mean something must also set #TIB when EVALUATE is used?

No.  EVALUATE doesn't affect TIB.

> What about setting SPAN ?

No.  SPAN is set by EXPECT , and not by EVALUATE .

> A.6.2.2040 QUERY
> "The function QUERY may be performed with ACCEPT and EVALUATE."
> 
> If I (now) have ACCEPT and EVALUATE as well as a QUERY (TIB based),
> should I rewrite QUERY to use ACCEPT and EVALUATE ?  They both
> currently use TIB too ...  It seems, at least from my definitions,
> that QUERY was broken into ACCEPT and EVALUATE, and reworked for a
> generic buffer.  The issue I have - which really isn't a problem yet
> - is that ACCEPT and EVALUATE can use _any_ buffer.  However, the
> remainder of my parsing words are all TIB based, some explicitly so,
> like WORD .

I think you should just fix that.  Get rid of the dependency on TIB of
your parsing words.  It'll be a lot easier.

Andrew.

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Thread

ANS' EVALUATE and related issues "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-07-02 19:46 -0400
  Re: ANS' EVALUATE and related issues BruceMcF <agila61@netscape.net> - 2012-07-02 17:01 -0700
    Re: ANS' EVALUATE and related issues Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-03 15:00 +0000
      Re: ANS' EVALUATE and related issues anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-07-03 15:33 +0000
  Re: ANS' EVALUATE and related issues Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-07-03 02:54 -0500
    Re: ANS' EVALUATE and related issues Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-07-03 03:32 -0500
  Re: ANS' EVALUATE and related issues Mark Wills <markrobertwills@yahoo.co.uk> - 2012-07-03 03:53 -0700
    Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-03 08:50 -1000
  Re: ANS' EVALUATE and related issues Mark Wills <markrobertwills@yahoo.co.uk> - 2012-07-03 03:47 -0700
    Re: ANS' EVALUATE and related issues "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-07-04 05:14 -0400
      Re: ANS' EVALUATE and related issues Mark Wills <markrobertwills@yahoo.co.uk> - 2012-07-04 04:10 -0700
        Re: ANS' EVALUATE and related issues Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-07-04 06:34 -0500
          Re: ANS' EVALUATE and related issues Mark Wills <markrobertwills@yahoo.co.uk> - 2012-07-04 05:22 -0700
            Re: ANS' EVALUATE and related issues Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-05 04:08 +0000
              Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-04 18:32 -1000
                Re: ANS' EVALUATE and related issues Alex McDonald <blog@rivadpm.com> - 2012-07-05 05:25 -0700
                Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-05 08:04 -1000
          Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-04 08:02 -1000
        Re: ANS' EVALUATE and related issues Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-07-05 03:58 +0000
  Re: ANS' EVALUATE and related issues anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-07-03 10:22 +0000
  Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-03 09:19 -1000
    Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-03 09:35 -1000
    Re: ANS' EVALUATE and related issues "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-07-04 05:12 -0400
      Re: ANS' EVALUATE and related issues Coos Haak <chforth@hccnet.nl> - 2012-07-04 17:53 +0200
      Re: ANS' EVALUATE and related issues BruceMcF <agila61@netscape.net> - 2012-07-04 08:53 -0700
      Re: ANS' EVALUATE and related issues "Elizabeth D. Rather" <erather@forth.com> - 2012-07-04 08:10 -1000
  Re: ANS' EVALUATE and related issues BruceMcF <agila61@netscape.net> - 2012-07-03 16:09 -0700

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