[Info-vax] The option to the Cobol foreground-color/background-color options

[Jan-Erik Söderholm]

Hi.

When defining screens using the "screen section" in Cobol,
one can add "foreground-color is n" and "background-color is n".

Now, the numeric parameter n has valid values between 0 and 7.
But our terminal emulator (and the ANSI/VT ESC sequence standard)
has 16 settings. In our emulator (Extra!) they are 0-15.

0="black"
7="white"
15="bright white"

If I try to set the value to 15 I get:


%COBOL-F-SCRCOLVAL, FOREGROUND-COLOR or BACKGROUND-COLOR clause
   value must be between 0 and 7 inclusive.

We are looking at options like redefining "colour 7" in Extra!
to be 255,255,255 (pure white) instead of the current 192,192,192
which results in a light grey background.

I'll ask VSI directly also if this restriction can be expanded
to include all colour options as can be seen here:
https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
but thought I'd just ask if someone have seen this before
and might have some other solution.

Regards,
Jan-Erik.