From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,HTML_MESSAGE,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 8402 invoked from network); 23 Nov 2021 08:31:18 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 23 Nov 2021 08:31:18 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 21C0B9CBFD; Tue, 23 Nov 2021 18:31:17 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 54B009C76C; Tue, 23 Nov 2021 18:28:38 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="W8xRRNDz"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 8100B9C76C; Tue, 23 Nov 2021 18:28:36 +1000 (AEST) Received: from mail-pj1-f43.google.com (mail-pj1-f43.google.com [209.85.216.43]) by minnie.tuhs.org (Postfix) with ESMTPS id 7EA8D9C280 for ; Tue, 23 Nov 2021 18:28:35 +1000 (AEST) Received: by mail-pj1-f43.google.com with SMTP id fv9-20020a17090b0e8900b001a6a5ab1392so2271010pjb.1 for ; Tue, 23 Nov 2021 00:28:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=IXMwfVVLpXxD9DqwFbig8l5Bx+6lROy9hiv/lbUbS8o=; b=W8xRRNDzsWchHc2PvAWrYMM9zteyuJLU0MNlzPmhbg9RgKQ530BZwZk9BL3DtqZ0nR /EeO26zNuyGL+k/q63mdF7Tnb4LkZQj2FmruAXmYBt/Lay/nflIQy9oOF9OI7p+PX8CX 0ttqyKm4dtXcVrFvekC1ZvTN/XZhkIFoevY9aHK0fA8CUXIG20+16vO/6uM79PEzOwm7 SZSsd4yvjWpztHQ2mKIDQIbpT9etU5jFPhPhH1Iwv/+DfD/nxVAj/uBUHWO8/FTFO+qF 32z+5fwTmZxGBh6KSxpTdvFcNdUMZJDY42hRnWURAu+G7CiNlPEciJxZPwDEC5/rocZn Fpdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=IXMwfVVLpXxD9DqwFbig8l5Bx+6lROy9hiv/lbUbS8o=; b=Stuf1g6fZony8SbJHNcub5xuVy08ZeagSQOOGhALdERNY6+axoaS0dBghr5o9XBcCr JlaJzsrx7XSebxx7SNYMC2xmP9pd9IMUpp8b7+F9VsPFVEevizPYTfw9VGxp/e4z5Sdh /r9MfpbbM62Wjv8tFjlqd43+U+EuNxpQK/OtsHk8mW48rW6dZYzToWhuhTK8IjuP+lSh A02yEP6Ev8KnJi1Pg2EYvN1PQDoudYtoyp7D+U/29G3CHYxdTiTz8/JdVdJ4gZ0ykOvS mejE+5x/AZJz3kxkFNglPfaMrtWgZGwmJ0b8Hu645Ss4ingNkIAK8hladOPky3ypEtOq OU4A== X-Gm-Message-State: AOAM531xGBaVwx5UOFalSPwOkGUe3RQyRQAEfQ85rWENbWaNLa8q0yP1 caHj08+CWgrdA91ToZJ2XTecIXOZHPC3kBaoNgc= X-Google-Smtp-Source: ABdhPJzzUSMAR7UwBbSTS+77eP2QPumyXq3HDFHewMFQbgZbT7zvKUh19oPfmS7swMGGUx8n+/2+zXSl4yVFP4yubk8= X-Received: by 2002:a17:903:1208:b0:143:e4e9:4ce3 with SMTP id l8-20020a170903120800b00143e4e94ce3mr4195837plh.21.1637656114856; Tue, 23 Nov 2021 00:28:34 -0800 (PST) MIME-Version: 1.0 References: <202111230810.1AN8Ag1c012469@freefriends.org> In-Reply-To: <202111230810.1AN8Ag1c012469@freefriends.org> From: Henry Bent Date: Tue, 23 Nov 2021 03:28:23 -0500 Message-ID: To: Aharon Robbins Content-Type: multipart/alternative; boundary="000000000000fd860705d17086e3" Subject: Re: [TUHS] Book Recommendation X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000fd860705d17086e3 Content-Type: text/plain; charset="UTF-8" On Tue, 23 Nov 2021 at 03:10, wrote: > Henry Bent wrote: > > > On Mon, 22 Nov 2021 at 21:31, Mary Ann Horton wrote: > > > > > PL/I was my favorite mainframe programming language my last two years > as > > > an undergrad. I liked how it incorporated ideas from FORTRAN, ALGOL, > and > > > COBOL. My student job was to enhance a PL/I package for a History > > > professor. > > > > > > > What language were the PL/I compilers written in? > > > > Wikipedia claims that IBM is still developing a PL/I compiler, which I > > suppose I have no reason to disbelieve, but I'm very curious as to who is > > using it and for what purpose. > > > > -Henry > > PL/1 compiler for Linux: http://www.iron-spring.com/ > > PL/1 front end for GCC (looks dead): pl1gcc.sourceforge.net "Expect some more releases soon" and the last release was 0.0.whatever, in 2007. I think that speaks volumes as to how popular PL/I is today. That being said, the Linux compiler does appear to be actively developed, and I suppose I shouldn't be surprised that the two platforms for active development are Linux and OS/2 (!). I have a vague recollection of installing and playing with a PL/I compiler demo for Ultrix, but I figured that the language was essentially dead at that point. I suppose I shouldn't be too surprised that there are still people using it, as this is the world of "we wrote the specifications in 1975 and there's no reason to update them," but I have a hard time imagining those companies being truly competitive, and an even harder time imagining them attracting talent under retirement age. -Henry --000000000000fd860705d17086e3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Tue, 23 Nov 2021 at 03:10, <arnold@skeeve.com> wrote:
H= enry Bent <h= enry.r.bent@gmail.com> wrote:

> On Mon, 22 Nov 2021 at 21:31, Mary Ann Horton <mah@mhorton.net> wrote:
>
> > PL/I was my favorite mainframe programming language my last two y= ears as
> > an undergrad. I liked how it incorporated ideas from FORTRAN, ALG= OL, and
> > COBOL. My student job was to enhance a PL/I package for a History=
> > professor.
> >
>
> What language were the PL/I compilers written in?
>
> Wikipedia claims that IBM is still developing a PL/I compiler, which I=
> suppose I have no reason to disbelieve, but I'm very curious as to= who is
> using it and for what purpose.
>
> -Henry

PL/1 compiler for Linux: http://www.iron-spring.com/

PL/1 front end for GCC (looks dead): pl1gcc.sourceforge.net
=C2=A0
"Expect some more releases soon" and t= he last release was 0.0.whatever, in 2007.=C2=A0 I think that speaks volume= s as to how popular PL/I is today.=C2=A0 That being said, the Linux compile= r does appear to be actively developed, and I suppose I shouldn't be su= rprised that the two platforms for active development are Linux and OS/2 (!= ).

I have a vague recollection of installing and p= laying with a PL/I compiler demo for Ultrix, but I figured that the languag= e was essentially dead at that point.=C2=A0 I suppose I shouldn't be to= o surprised that there are still people using it, as this is the world of &= quot;we wrote the specifications in 1975 and there's no reason to updat= e them," but I have a hard time imagining those companies being truly = competitive, and an even harder time imagining them attracting talent under= retirement age.

-Henry
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