[Info-vax] Suggestion: Enhance DCL to support proper escape quoting.

[Dave Froble]

On 1/22/2022 3:37 AM, Johnny Billquist wrote:
> On 2022-01-22 01:09, Dave Froble wrote:
>> On 1/21/2022 5:13 PM, Johnny Billquist wrote:
>>> On 2022-01-21 22:46, Arne Vajhøj wrote:
>>>> On 1/21/2022 4:03 PM, Bill Gunshannon wrote:
>>>>> On 1/21/22 3:25 PM, Dave Froble wrote:
>>>>>> On 1/21/2022 1:27 PM, Simon Clubley wrote:
>>>>>>> On 2022-01-20, Arne Vajhøj <arne at vajhoej.dk> wrote:
>>>>>>>> PS: In the original post Larry Wall also claimed to be inspired by
>>>>>>>>      BASIC-PLUS, which did not run on Unix.
>>>>>>>
>>>>>>> Ok, that's a new one. :-)
>>>>>>>
>>>>>>> How do you get from BASIC-PLUS to Perl ? :-)
>>>>>>
>>>>>> Basic+ is a interpreter and also allowed immediate execution of
>>>>>> instructions. Perhaps those features could be an inspiration?
>>>>>
>>>>> Basic+ was compilable. File extension BAC.
>>>>
>>>> This is before my time, so I don't know anything about.
>>>>
>>>> Should such a .BAC file contain native PDP-11 code (like
>>>> a VMS EXE file) or does it contain some binary version
>>>> of the source code (like Python .pyc or Java .class)?
>>>
>>> BASIC+ just compiled to tokens. So it wasn't really "compiled".
>>> But I could thing that various string handling in Perl could have been inspired
>>> by BASIC+.
>>>
>>> BASIC+2 was a bit more properly compiled. But it can also run in interactive
>>> mode.
>>>
>>>   Johnny
>>
>> That's not what I remember, but, I've tried very hard to forget.
>>
>> With BP2, one compiled to object modules, then (gasp) there was the dreaded
>> <<<TKB>>> ...
>>
>> I'll admit to learning much from overlays, but, it was still torture ..
>
> .set /host
> Host=MIM RSX-11M-PLUS V4.6  BL87mP
> .bp2
>
> PDP-11 BASIC-PLUS-2 V2.7-C
>
> BASIC2
>
> print ert$(i) for i=1 to 10
>
>
> ?Bad directory for device
> ?Illegal file name
> ?Account or device in use
> ?No room for user on device
> ?Can't find file or account
> ?Not a valid device
> ?I/O channel already open
> ?Device not available
> ?I/O channel not open
> ?Protection violation
>
> BASIC2
>
> show
> PDP-11 BASIC-PLUS-2 V2.7-C  using FPU with  run support
> ENVIRONMENT INFORMATION:             RMS FILE ORGANIZATION:
>     Current edit line : 0               NO Index
>     NO Modules loaded                   NO Relative
>     NO Main module loaded               NO Sequential
>                                         NO Virtual
> DEFAULT DATA TYPE INFORMATION:       LISTING FILE INFORMATION:
>     Data type : REAL                    NO Source
>     Real size : SINGLE                  NO Cross Reference
>     Integer size : WORD                 NO Keywords
>     Scale factor : 0                       60 lines by 132 columns
> COMPILATION QUALIFIERS:              BUILD QUALIFIERS:
>        Object                           NO Dump
>     NO Macro                            NO Map
>        Lines                            NO Cluster
>        Warnings                            I- and D-Space
>     NO Debug records                    Task extend  : 512
>     NO Syntax checking                  RMS ODL file : LB:[1,1]RMS11X
>     Flag : Declining                    BP2 Disk lib : LB:[1,1]BP2OTS
>     Variant : 0                         BP2 Resident lib : NONE
>                                         RMS Resident lib : NONE
>
> BASIC2
>
>
> Interactive and run support was optional. You are able to choose whether to
> include that or not when you do the installation.
> Maybe wherever you was using it, they had not included it then?
>
>   Johnny

That is interesting.  I never used RSX.  Other than the RSX runtime on RSTS.  It 
has been a very long time, some might say a "lifetime", since I saw a RSTS system.

-- 
David Froble                       Tel: 724-529-0450
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