Re: SDL, SDLC, PL/I (was Re: VMS Pascal article)

On 1/4/2025 2:14 PM, Stephen Hoffman wrote:

On 2025-01-03 14:30:37 +0000, Robert A. Brooks said:

On 1/3/2025 7:59 AM, Arne Vajhøj wrote:

On 1/2/2025 10:48 PM, Robert A. Brooks wrote:

On 1/2/2025 10:32 PM, Arne Vajhøj wrote:

I thought it was PL/I. Which is why I asked.

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Rewritten in the early 2000's.

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Ah. So it was rewritten for Itanium instead of being AEST'ed.
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I wonder whether it was because someone at HP decided to do the right thing or because AEST couldn't handle it.

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I am not aware of an attempt to AEST it; it was rewritten by Walter Breu (sp?) of HP Germany.  He was not in VMS Engineering, so I wasn't paying a lot of attention when he was doing the work.
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Pretty sure it was part of the "get rid of all PL/I" initiative.

 That's basically correct, yes. And Walter Breu was the author of the SDLC port and of some related updates. One of the goals of that SDLC port was character-level-formatting compatibility with the PL/I version of the SDL tool; matching DIFF'ing.
 Various factors that triggered this port including the transition of PL/ I to Uniprise and later Kednos — and particularly the lack of a PL/I compiler on Itanium — and caused an interest in reducing the usage of PL/I within OpenVMS. MONITOR was the biggest existing user of PL/I.

Walter Braeu
I tried installing 2.3 on VMS Alpha.
And the installation procedure attempts to send an
email to him at hp.com.
Unusual!
Arne