Re: Questions about strings

From	anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups	comp.lang.forth
Subject	Re: Questions about strings
Date	2015-10-17 17:10 +0000
Organization	Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID	<2015Oct17.191057@mips.complang.tuwien.ac.at> (permalink)
References	<a094319a-c257-452a-8009-e5d55ab1cdf6@googlegroups.com>

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Chris Curl <ccurl609@gmail.com> writes:
>Assuming that the count is at the beginning of a string, is the count the same size as the characters in the string?

If you use a COUNTed string, the count is a character.  Most words
dealing with strings take and produce strings represented as c-addr u,
where u specifies the length in characters, and c-addr points to the
first character.

>And are the characters "wide" (16 bits), or are they 8-bit entities?

In practice, 8-bit entities on byte-addressed machines.

>In other words, to get the length of a string, would I use C@ or @?

Most of the time, you would use NIP.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2015: http://www.rigwit.co.uk/EuroForth2015/

Thread

Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-17 06:46 -0700
  Re: Questions about strings rickman <gnuarm@gmail.com> - 2015-10-17 11:25 -0400
    Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-17 10:43 -0700
      Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-17 17:52 +0000
      Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-17 07:56 -1000
      Re: Questions about strings rickman <gnuarm@gmail.com> - 2015-10-17 14:07 -0400
      Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-18 12:50 +1000
  Re: Questions about strings Ron Aaron <rambamist@gmail.com> - 2015-10-17 19:30 +0300
  Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-17 17:10 +0000
  Re: Questions about strings Jason Damisch <jasondamisch@yahoo.com> - 2015-10-17 10:41 -0700
    Re: Questions about strings foxaudioresearch@gmail.com - 2015-10-17 21:41 -0700
    Re: Questions about strings Johan Kotlinski <kotlinski@gmail.com> - 2015-10-18 15:40 -0700
      Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-18 13:41 -1000
        Re: Questions about strings Johan Kotlinski <kotlinski@gmail.com> - 2015-10-19 07:58 -0700
          Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-19 08:36 -1000
          Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-23 00:08 +1000
      Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-19 07:15 +0000
        Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-19 05:03 -0700
          Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-19 08:38 -1000
            Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-19 14:28 -0700
            Re: Questions about strings Alfred Singlestone <vitonis@gmail.com> - 2015-10-21 16:21 -0700
              Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-22 11:07 +1000
                Re: Questions about strings Lars Brinkhoff <lars.spam@nocrew.org> - 2015-10-27 11:29 +0100
                Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-27 06:14 -0700
                Re: Questions about strings Lars Brinkhoff <lars.spam@nocrew.org> - 2015-10-27 15:04 +0100
                Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-27 07:01 -0700
                Re: Questions about strings Lars Brinkhoff <lars.spam@nocrew.org> - 2015-10-27 15:04 +0100
                Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-27 14:26 -0700
                Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-27 11:45 -1000
                Re: Questions about strings Lars Brinkhoff <lars.spam@nocrew.org> - 2015-10-28 07:43 +0100
        Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-19 23:25 +1000
      Re: Questions about strings rickman <gnuarm@gmail.com> - 2015-10-20 14:47 -0400
        Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-20 09:48 -1000
          Re: Questions about strings rickman <gnuarm@gmail.com> - 2015-10-20 23:25 -0400
            Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-21 15:11 +1000
              Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-22 11:21 +1000
                Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-21 18:31 -1000
                Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-22 05:51 +0000
                Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-24 12:44 +1000
                Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-25 10:17 +0000
                Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-26 15:14 +1100
                Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-26 11:20 +0000
                Re: Questions about strings "HAA" <someone@microsoft.com> - 2015-10-31 00:20 +1100
                Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-30 19:06 -1000
                Re: Questions about strings Paul Rubin <no.email@nospam.invalid> - 2015-10-30 23:27 -0700
                Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-30 21:28 -1000
                Re: Questions about strings Paul Rubin <no.email@nospam.invalid> - 2015-10-31 00:37 -0700
                Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-30 21:48 -1000
          Re: Questions about strings anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-10-21 06:10 +0000
  Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-31 10:48 -0700
    Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-31 09:57 -1000
      Re: Questions about strings Chris Curl <ccurl609@gmail.com> - 2015-10-31 13:34 -0700
        Re: Questions about strings "Elizabeth D. Rather" <erather@forth.com> - 2015-10-31 12:06 -1000
    Re: Questions about strings "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-11-02 02:34 -0500

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