Delete Character With Wraparound - HP 262SA Reference Manual

Display Control
When Format mode is on and the cursor is positioned within an unprotected or transmit-only
field, this function affects only those characters from the cursor position through the end of
the current field. If the field definition also includes a video enhancement and/or an alternate
character set, those characteristics are not altered by the delete character function. Block
terminators and non-displaying terminators are treated the same as when Format mode is
off. If the cursor is not within a protected or transmit-only field, the delete character function
has no effect.
In the User Key menu and any configuration menu, delete character acts the same as for
unprotected and transmit-only fields in Format mode.
From the keyboard, each time you press the
III
key the terminal deletes one character. If
you hold the key down, the terminal continues to delete characters until either the key is
released or there are no non-blank characters between the cursor position and the right
margin. In the latter case, pressing or continuing to hold down this key has no further effect.
From a program executing in a host computer, you delete the character at the current cursor
position using the following escape sequence:
Ec P
Delete Character with Wraparound
When you use the delete character with wraparound edit function, the cursor remains sta-
tionary, the character at the cursor position is deleted, all characters between the cursor and
the right margin roll left one column, and one character rolls from the left margin of the next
lower text line into the current line from the right margin. As a character rolls in from the
next lower line, the remaining characters in that line roll one column to the left and a blank
rolls in from the right margin.
The delete character with wraparound edit function affects only the line containing the
cursor and the next lower text line.
This edit function is meant to be used within that portion of the workspace delineated by the
left and right margins. If you position the cursor to the left of the left margin, the delete
character with wraparound function works as described above. If you position the cursor
beyond the right margin, however, the delete character function is performed without
wraparound and it affects only those characters from the cursor position through the right
boundary of the workspace.
The movement of existing characters during a ((delete character with wraparound" editing
operation is illustrated in figure 4-6.
4-17