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Display Control
Left
Margin
Right
Margin
Cursor
I
Cursor
....... Character Movement
Cursor
Figure 4-6. Delete Character with Wraparound
When Format mode is off, any unprotected, transmit-only, alternate character set, and/or
video ennancement fields to the right of or in the line below the cursor move to the left with
the displayable characters. If part or all of such a field moves into the line containing the
cursor the character positions that have been wrapped maintain their field, character set,
and video enhancement characteristics. Those character that were not wrapped will lose only
their field characteristics. If the cursor is positioned within any such field, the delete charac-
ter with wraparound function shortens the range of the field by one position for each charac-
ter deleted (you cannot, however, delete the end-of-field marker in unprotected or
transmit-only fields). Deleting the first character position of an unprotected or transmit-only
field changes the rest of the field to protected. Deleting characters at the start of or within a
video enhancement and/or alternate character set field does not alter the characteristics of
the rest of the field. Block terminators and non-displaying terminators to the right of the
cursor move to the left along with the displayable characters and are deleted if they are at
the cursor position when this function is executed.
From the keyboard, each time you press the _
and •
keys, the terminal deletes one
character with wraparound. If you hold these keys down, the terminal continues to delete
characters with wraparound until either the keys are released or until there are no non-
blank characters remaining between the cursor and the right margin of the next lower line.
From a program executing in a host computer, you delete the character at the current cursor
position with wraparound using the following escape sequence:
Ec 0
Clear Display
When Format mode is off, pressing the. key deletes all displaying and non-displaying
characters from the current cursor position through the end of the workspace.
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