6530 Programmer's Guide

Block Mode Operation
6530 Programmer’s Guide 3-19
Back Tab (Esc i)
The Esc i sequence moves the cursor to the previous tab stop in
nonprotect submode. If no previous tab stops exist on the current row, the
cursor moves to the first column of the row. If the cursor is initially in
column l, a back tab moves the cursor to the right-most tab stop of the
previous row. If the cursor is initially in row 1, column l, the cursor
moves to the right-most tab stop of the last row.
In protect submode, a back tab moves the cursor to the first position of the
current unprotected field. If the cursor is initially in the first position of a
field, the cursor moves to the first position of the previous unprotected
field.
Tab Settings This group of escape sequences sets or clears tab stops. The 6530
maintains only one set of tab stops, which applies to all pages. These
escape sequences are valid only in nonprotect submode; they are ignored
in protect submode.
Set Tab (Esc 1)
The Esc 1 sequence sets a horizontal tab stop at the column position of
the current buffer address. Once a tab is set, it applies to that column
position for all rows on every page until it is cleared. The tab stop does
not take up a position on the screen.
Clear Tab (Esc 2)
The Esc 2 sequence clears a previously set tab stop at the column position
of the current buffer address. This tab stop is cleared from that column for
all rows on every page.
Clear All Tabs (Esc 3)
The Esc 3 sequence clears all previously set tab stops from all column
positions on every page.