True! But with one terminal emulator I use a lot, there is no APL
character support. There are still GE (Graphic Escape) characters, but
those are just for display. If you try to copy the GE characters ISPF
uses for boxes, the sides and corners are converted to ASCII characters
like this:
Menu Utilities Compilers Options Status Help
+-----------------------------+ ---------------------
| 1. Settings | Primary Option Menu
| 2. View |
| 3. Edit | More:
| 4. ISPF Command Shell | er parameters
| 5. Dialog Test... | data or listings
| 6. Other IBM Products... | e source data
| 7. SCLM | functions
| 8. ISPF Workplace | guage processing
| 9. Status Area... | language processing
| 10. Exit | rkstation commands
+-----------------------------+ testing
9 IBM Products IBM program development products
10 SCLM SW Configuration Library Manager
I can't remember what happens when you try to copy any of the other GE
characters to the clipboard. Most likely you just get junk or blanks or
maybe dots.
On 10/10/2023 8:37 PM, Seymour J Metz wrote:
In addition to all of the other translations that may be invoked, a 3270 with
text or APL has two built-in code pages and uses the GE character to select the
alternate page. ISPF has to deal with that if you select the appropriate
terminal type.
________________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of Grant
Taylor <[email protected]>
Sent: Tuesday, October 10, 2023 10:22 PM
To: [email protected]
Subject: Re: TN3270, EBCDIC and ASCII
On 10/10/23 3:15 PM, Rick Troth wrote:
The copy-n-paste point makes me wonder if the fonts are actually mapped
to ASCII values.
I was wondering the same thing.
I'm watching the thread to learn more.
I don't know graphical environments well enough to analyze it. But it
would mean that, yes, there *is* A/E translation happening even in the
graphical 3270 emulators. (In hopes of not steering Juan wrong with what
I said before.)
I would have naively assumed that the A/E translation is happening
between the TN3270* protocol and the in memory screen buffer.
This would mean that the buffer can be displayed with any font the user
chooses /and/ it would more cleanly support copy / paste.
*I actually assume that similar would happen with communications using
more traditional SNA on the LAN; e.g. DLC. -- If memory even remotely
serves after a long day.
--
Grant. . . .
unix || die
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