vle-search


(vle-search  item  lst  asIdx)

searches for 'item' in list 'lst' and returns either the index of 'item' in 'lst' (if 'asIdx' is non-NIL), or the list starting with 'item' (if 'asIdx' is NIL), or NIL if 'item' is not contained in 'lst'

Arguments

item  object to search for in lst

lst  list of items to search in

asIdx  flag defining the type of result;:if NIL, the list starting with item is returned; if non-NIL, the index of item in lst is returned

Return

the index of item in lst, or the sub-list starting with item, depending on asIdx flag;
if item is not contained in 'lst', NIL is returned

Example

(vle-search 11 '(1 2 3 11 22 33 ) nil)   returns   '(11 22 33)
(vle-search 11 '(1 2 3 11 22 33 ) t)      returns   3

Alias


Remarks

returned index is 0-based


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