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Groups > comp.sys.acorn.programmer > #6119

Re: case sensitive file test

From Bob Latham <bob@sick-of-spam.invalid>
Subject Re: case sensitive file test
Newsgroups comp.sys.acorn.programmer
Message-ID <5876d4740ebob@sick-of-spam.invalid> (permalink)
References (1 earlier) <5876b6c3c3bob@sick-of-spam.invalid> <c775bd7658.Kevin@Kevsoft> <mpro.qay50z05bfl4p02mn.news@stevefryatt.org.uk> <5876c928b4bob@sick-of-spam.invalid> <mpro.qay87d069uaym02mn.news@stevefryatt.org.uk>
Organization None
Date 2020-05-26 19:46 +0100

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In article <mpro.qay87d069uaym02mn.news@stevefryatt.org.uk>,
   Steve Fryatt <news@stevefryatt.org.uk> wrote:
> On 26 May, Bob Latham wrote in message
>     <5876c928b4bob@sick-of-spam.invalid>:

> > I presume this is a means to test a directory listing to make
> > sure an entry is lower case?

> No, it's just a generic "is this string lower case" test. The two
> SWIs return pointers to tables of bit flags (so 32 bytes of 8 bits
> each, for all 256 characters in a RISC OS character set). In
> alpha_table%, a bit is set if the character is alphabetic; in
> lower_table%, its set if the character is considered lower case.

> You still need OS_GBPB to find the names to test.

Understood, thank you.

Cheers,

Bob.

-- 
Bob Latham
Stourbridge, West Midlands

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Thread

case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 12:46 +0100
  Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 14:21 +0100
    Re: case sensitive file test Kevin Wells <kev@kevsoft.co.uk> - 2020-05-26 15:34 +0100
      Re: case sensitive file test Steve Fryatt <news@stevefryatt.org.uk> - 2020-05-26 17:12 +0100
        Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 17:42 +0100
          Re: case sensitive file test Steve Fryatt <news@stevefryatt.org.uk> - 2020-05-26 18:21 +0100
            Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 19:46 +0100
        Re: case sensitive file test Steve Drain <steve@kappa.me.uk> - 2020-05-27 13:14 +0100
          Re: case sensitive file test jgh@mdfs.net - 2020-05-27 16:25 -0700
            Re: case sensitive file test Steve Drain <steve@kappa.me.uk> - 2020-05-28 14:16 +0100
              Re: case sensitive file test druck <news@druck.org.uk> - 2020-06-01 20:01 +0100
      Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 17:29 +0100
        Re: case sensitive file test Steve Fryatt <news@stevefryatt.org.uk> - 2020-05-26 17:52 +0100
          Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 18:06 +0100
        Re: case sensitive file test "John Williams (News)" <UCEbin@tiscali.co.uk> - 2020-05-26 18:00 +0100
          Re: case sensitive file test "John Williams (News)" <UCEbin@tiscali.co.uk> - 2020-05-26 18:07 +0100
          Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 19:40 +0100
    Re: case sensitive file test David Higton <dave@davehigton.me.uk> - 2020-05-26 18:08 +0100
      Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-05-26 19:40 +0100
  Re: case sensitive file test Erik G <noreply123@xs4all.nl> - 2020-06-01 03:19 +0200
    Re: case sensitive file test Bob Latham <bob@sick-of-spam.invalid> - 2020-06-01 15:53 +0100
    Re: case sensitive file test druck <news@druck.org.uk> - 2020-06-01 20:57 +0100
    Re: case sensitive file test jgh@mdfs.net - 2020-06-04 09:23 -0700
      Re: case sensitive file test Martin <News03@avisoft.f9.co.uk> - 2020-06-04 17:51 +0100
      Re: case sensitive file test druck <news@druck.org.uk> - 2020-06-04 20:49 +0100
        Re: case sensitive file test jgh@mdfs.net - 2020-06-04 16:18 -0700
          Re: case sensitive file test druck <news@druck.org.uk> - 2020-06-05 11:27 +0100

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