Allow applications to establish environments for scripts (ADDRESS) , allow call-backs from within scripts and access the variables of the scripts. I wish that I could do that from within Perl, although I'd take the time to learn Python or Ruby if they supported that.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of David Crayford [dcrayf...@gmail.com] Sent: Wednesday, June 23, 2021 3:19 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Coding for the future On 23/06/2021 10:38 am, Seymour J Metz wrote: > None of those are relevant to what REXX does best. Again, it's the plumbing, > not the syntactic sugar. What exactly does REXX do best? What does it do better than Python? > > As to large applications, I believe that there are some pretty big ones in > Perl and REXX, so why should I be surprised by large applications in, e.g., > Python, Ruby? > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of > David Crayford [dcrayf...@gmail.com] > Sent: Tuesday, June 22, 2021 7:25 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Coding for the future > > On 22/06/2021 10:19 pm, Seymour J Metz wrote: >> It's not a question of what environment it can run in; it's a question of >> what facilities it supports in those environments. > Indeed. Lua supports TSO, ISPF, CICS, IMS, the full MVS file system > including VSAM. DB2 SQL + a SQLite API. A date/time module that supports > dates that are greater than Mon Jan 01 1000000 BCE 00:00:00 and less > than Mon Jan 01 1000001 00:00:00 etc, etc. > We presented at SHARE where we demonstrated how to use Lua integration > to convert a 3270 CICS BMS application to a mobile web app > https://secure-web.cisco.com/1LTRemd3KBmC5tUUKSeo9EC5h9xyRF7Bz3PhdCSMXFnXeU9xUYZAMVe5chb0ZaeK3DMtRGm6fXidrWX-DdewRuiBFuunmJgylrBSK2m0dxTkBwteMqPfIErfpIkx2t0yKE_X4Vvjo2z5bwL3x5Gzol57ueWGXt0mRa5LkbagnGSXpBSeh0a0sqCHTv7dZ_yP7bvWRZEdnEhIKqF6yOijhnDFn7l75N3TqnoUwxHNnsOFWy_ZGihMqSRgOpFgNGT29c3jEMR9BWE6SwalS5Fq9qCm5mI3QT3QGXbhUjO6A4bL_zu9qSlFAFZM7PJeBTr73ngdhubfDFqh0fRWaFg5cyBhzcMGUTVbEV5QWTr76UNB_zRihnfVeyioclr2jou2HVmP2A7PlvHHZDFG0y1o-fR5mEjE0DxE6Jrzclf2Oy-W2TISt9m1rarhndnanZuca/https%3A%2F%2Fshare.confex.com%2Fshare%2F123%2Fwebprogram%2FHandout%2FSession15892%2F15892%2520Mobile%2520CICS%2520Application%2520Using%2520Lua.pdf. > > I spent a lot of time making sure Lua integrated well into the TSO/MVS > environment. The irony is I spend very little time in TSO/ISPF these > days. I spend most of my time in a shell and switch the ISPF when I want > to use SDSF. I write new scripting code in Python which is enhanced > ASCII so only > runs in z/OS UNIX. Rocket and IBM don't see any value in integrating > ported tools with TSO as it's not strategic. The main focus is on > containers. > > BTW, did you know that the photo sharing app Instagram is written in > Python? It's staggering to imagine that what we would consider a > scripting language is serving over 1 billion monthly users. > > >> -- >> Shmuel (Seymour J.) Metz >> http://mason.gmu.edu/~smetz3 >> >> >> ________________________________________ >> From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of >> David Crayford <dcrayf...@gmail.com> >> Sent: Tuesday, June 22, 2021 9:57 AM >> To: IBM-MAIN@LISTSERV.UA.EDU >> Subject: Re: Coding for the future >> >> On 22/06/2021 8:55 pm, Seymour J Metz wrote: >>> What distinguishes REXX is not syntactic sugar but the plumbing that >>> enables close coupling of scripts with applications. Lua is missing that. >> Maybe. But I can't think of an environment that REXX runs in that Lua >> can't. I could port Python to run in TSO if I had the time but it's a >> heavy lift. IBM have ported golang now which is compiled. We've had a >> look at it and it's interesting. >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
