block.face.isgroup
Syntax
- b := block.face.isgroup(bfp,s<,slot>)
Check if the group s is associated with the block face. Will return true if a match is found in any slot. If the optional third argument slot is provided, then it will only check that slot.
A group pointer or a slot index may be provided instead of strings for efficiency. See the
group.find
andgroup.find.slot
intrinsics.Returns: Arguments: bfp - a pointer to a block face
s - a group name
slot - an optional slot specification. If not provided, the check will occur on all slots that have been assigned to the block face.
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