#156 MF LINE and COL screen clauses

[Edward Hart]

Micro Focus supports the following kind of LINE and COLUMN clause:

SCREEN SECTION.
01  scr.
   03  x PIC 9 LINE 4, COL 4.
   03  y PIC 9 LINE, COL.

Here LINE is shorthand for LINE + 1 and COL is shorthand for COL + 1.

[Simon Sobisch]

Strange syntax... Please add a quote of their docs mentioning this.
And yes: you're free to implement it if MF supports it (the "bad" thing here [it is not that bad and we should have more of these]: to be "correct" we'd need a compiler configuration for this).

[Edward Hart]

For the COLUMN clause:

Omitting the NUMBER phrase results in a default value of +1.

For the LINE clause:

Omitting the NUMBER phrase results in a default value of PLUS 1.

Attached is a patch for this feature. Quite a large chunk of the screen description code had to be re-arranged to avoid a reduce/reduce error involving the GLOBAL clause. Do you think it's acceptable?

[Simon Sobisch]

I think we find a better way. Can you please commit the parts that aren't part of this issue already?

I'm thinking about:

• re-rename of _symbolic_collection->symbolic_collection; do we need the SHIFT_PREFER there, btw?
• screen_col_number and screen_line_number
• PENDING
• rename of global_screen_opt->screen_global_clause

[Edward Hart]

Can you please commit the parts that aren't part of this issue already?

Sure; done in [r1501].

[Simon Sobisch]

This got somehow lost - @edward-h please send an updated patch towards current SVN and/or de-assign yourself.