ISO: A good explanation of EBCDIC control seuqnces

[Chuck Guzis]

On 8 Feb 2007 at 9:52, Kevin Handy wrote:

> Many WP file formats use these "out-of-band" control
> characters that did not have any printable form for this
> purpose. WordPerfect, WordStar, DecWord, etc. all do this.

I hadn't realized that WordPerfect, WordStar, DecWord, etc. operated 
in EBCDIC.

If it's EBCDIC, I'm clearly talking about IBM, who usually has better 
quality of standardization and documentation for this kind of stuff 
than the "DLE means what we say it means" ASCII-oriented WP software. 
I'm sure you're aware that unlike ASCII, which seems to be built for 
7-level TTY, EBCDIC has a very rich set of control characters with 
very specific typographic functions (e.g. SBS, SPS, PLU, HTJ, HTS, 
NBSP, RNL).

In particular, I'm interested in the CSP+'M' sequences; I've already 
found documents on the CSP+''L' sequences.  And there most likely is 
an IBM document that spells out the difference between HT, IT, PT and 
HTJ, all of which are varietes of horizontal tabulation. 

Thanks,
Chuck