B
Moves the buffer pointer in the active input buffer back to the previous parameter.
Syntax
B
Operation
The input buffer pointer moves backward until it finds an attribute mark.
If the pointer is on the first character of a parameter, it is treated as though it were on the preceding attribute mark, and the pointer is moved back to the attribute mark of the previous parameter.
If the pointer does not find an attribute mark, it is positioned at the beginning of the input buffer.
If the pointer is already at the beginning of the buffer when the B command is issued, there is no change.
Example 1
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Command |
PIB Before |
PIB After |
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Example 2
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Command |
PIB Before |
PIB After |
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