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| ☜ | Open-Ended Definitions1995 Version of ANSI (Equivalent to Current ISO Version) of Standard | ☞ | ||||
Under some conditions, the behavior specified by X3.64 is either ambiguous or optional. The following clarifies the behavior to ensure consistency:
| CBT | Move the cursor to the last horizontal tabulator-stop in the previous line. If no such tabulator-stop exists, don’t move the cursor. |
| CHA | when a location outside
the available horizontal range is specified: Move the cursor in the direction suggested by the parameter-value to either the rightmost (parameter value greater than current position) or leftmost (parameter value less than current position) position. |
| CHT | when no further forward
horizontal tabulator-stops have been defined in the current
line: Move the cursor to the first horizontal tabulator-stop in the next line. If no such tabulator-stop exists, don’t move the cursor. |
| CNL | when the cursor is moved
forward beyond the last line on the device: Do not move the cursor. If the output device is a CRT-screen, scroll up one line. |
| CPL | when the cursor is moved
backward beyond the first line on the device: Do not move the cursor. If the output device is a CRT-screen, scroll down one line. |
| CUB | when the cursor is moved
backward beyond the first position on a line: Do not move the cursor. |
| CUD | when the cursor is moved
downward beyond the last line on a device: Do not move the cursor. |
| CUF | when the cursor is moved
forward beyond the last position on a line: Do not move the cursor. |
| CUP | when a location outside
the available horizontal or vertical ranges is specified: Do not move the cursor. |
| CUU | when the cursor is moved
upward beyond the last line on a device: Do not move the cursor. |
| CVT | when no further forward
vertical tabulator-stops have been defined on the device: Move the cursor to the first vertical tabulator-stop in the next page. If no such tabulator-stop exists, don’t move the cursor. |
| HPA | when a location outside
the available horizontal range is specified: Move the cursor in the direction suggested by the parameter-value to either the rightmost (parameter value greater than current position) or leftmost (parameter value less than current position) position. |
| HPR | when a location outside
the available horizontal range is specified: Move the cursor in the direction suggested by the parameter-value to either the rightmost (parameter value positive) or leftmost (parameter value negative) position. |
| HTJ | when no further forward
horizontal tabulator-stops have been defined in the current
line: Move the cursor to the first horizontal tabulator-stop in the next line. If no such tabulator-stop exists, don’t move the cursor. |
| HVP | when a location outside
the available horizontal or vertical ranges is specified: Do not move the cursor. |
| IND | when the cursor is moved
downward beyond the last line on a device: Move the cursor to the corresponding horizontal position in the first line on the next page. |
| NEL | when the cursor is moved
downward beyond the last line on a device: Move the cursor to the first position on the first line on the next page. |
| PLD | this function may or may
not be similar to CUD or IND. The effect of two successive PLD
operations may or may not be equal to the effect of one single
CUD or IND operation: This function will be identical to CUD. The effect of PLD and PLU will be complementary, i.e. .PLD immediately followed by PLU will effectively not move the cursor. |
| PLU | this function may or may
not be similar to CUU or RI. The effect of two successive PLU
operations may or may not be equal to the effect of one single
CUU or RI operation: This function will be identical to CUU. The effect of PLD and PLU will be complementary, i.e. .PLU immediately followed by PLD will effectively not move the cursor. |
| RI | when the cursor is moved
upward beyond the first line on a device: Move the cursor to the corresponding horizontal position in the last line on the previous page. |
| VPA | when a location outside
the vertical range is specified: Move the cursor in the direction suggested by the parameter-value to either the bottommost (parameter value greater than current position) or topmost (parameter value less than current position) position. |
| VPR | when a location outside
the vertical range is specified: Move the cursor in the direction suggested by the parameter-value to either the bottommost (parameter value positive) or topmost (parameter value negative) position. |
The following functions shall not cause the cursor to move: ICH, JFY, MC, NP, DL and PP.
The following functions shall move the cursor so that it will point to the same character in the new projection of the information: SD, SL, SR and SU. Boundary conditions will be similar to CUD, CUB, CUF and CUU respectively.
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Copyright © Standard Documents; 1977-2024 MUMPS Development Committee;
Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.
This page most recently updated on 16-Nov-2023, 11:44:38.
For comments, contact Ed de Moel (demoel@jacquardsystems.com)