October 1, 1979 FRESS COMMANDS BLOCK TRAIL CONTINUOUS
Display
BT
• BT Block Trail Continuous ______________________________
BTCONTINUOUS creates a logically continuous Trail of all Blocks
online whose Keywords satisfy the boolean request, for ______ perusal
not (FULLPRINT will ___ follow a Block Trail).
BTcontinuous <bool>° <wind>°
NOTES _____
• <bool> defaults to the previous specification of <bool>.
• Display is set at the top of the first Block.
• All Blocks are displayed contiguously, one after the other.
Thus, SCROLLing over the end of a Block in a continuous Trail
will automatically cause the display to move to the top of the
next Block in the Trail. However, if Block boundaries are
crossed to find a pattern (e.g., to LOCATE through a Trail),
the Trail will be lost and must be explicitly reestablished.
This can be done by simply issuing the "Block Trail" command
without the <bool> parameter (it will default).
• TRAIL may be used to travel forward or backward along the
Trail, as well as returning to the Trail if it is left.
• The Block Trail environment may be left by any non-linear
travel function (e.g., DSPACE, GLABEL).
• Nested Blocks will only be retrieved if each higher level Block
also satisfies the request.
• If Weights are specified in the boolean request, the Blocks are
retrieved in order of Weight, from highest to lowest.
122 -- Section 5 Release 9.1 FRESS Resource Manual
Display
BT
• BT Block Trail Continuous ______________________________
BTCONTINUOUS creates a logically continuous Trail of all Blocks
online whose Keywords satisfy the boolean request, for ______ perusal
not (FULLPRINT will ___ follow a Block Trail).
BTcontinuous <bool>° <wind>°
NOTES _____
• <bool> defaults to the previous specification of <bool>.
• Display is set at the top of the first Block.
• All Blocks are displayed contiguously, one after the other.
Thus, SCROLLing over the end of a Block in a continuous Trail
will automatically cause the display to move to the top of the
next Block in the Trail. However, if Block boundaries are
crossed to find a pattern (e.g., to LOCATE through a Trail),
the Trail will be lost and must be explicitly reestablished.
This can be done by simply issuing the "Block Trail" command
without the <bool> parameter (it will default).
• TRAIL may be used to travel forward or backward along the
Trail, as well as returning to the Trail if it is left.
• The Block Trail environment may be left by any non-linear
travel function (e.g., DSPACE, GLABEL).
• Nested Blocks will only be retrieved if each higher level Block
also satisfies the request.
• If Weights are specified in the boolean request, the Blocks are
retrieved in order of Weight, from highest to lowest.
122 -- Section 5 Release 9.1 FRESS Resource Manual
