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✏️ Editing: InternalStructure3.html

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<center>LST
 Cursor On Cursor
 Add C
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 <img SRC="InternalStructure3.gif" ALT="LST - Cursor On Cursor - Add C" BORDER=0 height=247 width=647>
 
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Description
This diagram depicts a cursor (C) which
is based upon another cursor (B). It shows how a list can be incrementally
reduced using calls to lstOpenCursor() with a filter function.
Notice that the item (C1) is a direct reference
to the root list (A) even though the cursor is based upon (B).
Symantics
(B) and (C) are cursors.
(C) is based upon (B).
(B) is the base list for (C).
(A) is the root list for (B) and (C).
(A) is the base list for (B).
Related Functions
lstOpenCursor()

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