Difference between revisions of "ListXequY"
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Ugleh Ulrik (talk | contribs) |
Void Singer (talk | contribs) m (examples should at least compile) |
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list l1 = ["a","b","c","d"]; | list l1 = ["a","b","c","d"]; | ||
list l2 = ["a","1","b","2","c","3"]; | list l2 = ["a","1","b","2","c","3"]; | ||
integer ListXequY(list lx, list ly) { | |||
if (llList2CSV( ListXnotY(lx,ly) ) =="") return TRUE; | |||
else return FALSE; | |||
} | |||
list ListXnotY(list lx, list ly) {// return elements in X list that are not in Y list | |||
list lz = []; | |||
integer i = 0; | |||
integer n = llGetListLength(lx); | |||
for (; i < n; i++) | |||
if (llListFindList(ly,llList2List(lx,i,i)) == -1) | |||
lz += llList2List(lx,i,i); | |||
return lz; | |||
} | |||
default{ | default{ |
Revision as of 23:27, 25 June 2010
LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Function: integer ListXequY(list lx, list ly);
Answers the question: is list X identical to list Y?
Returns the number 1 if true, 0 if false
Note: requires also the function ListXnotY .
The opposite function is ListXneqY .
See also: Lists
<lsl> integer ListXequY(list lx, list ly) {
if (llList2CSV( ListXnotY(lx,ly) ) =="") return TRUE; else return FALSE;
} </lsl>
Example:
<lsl> list l1 = ["a","b","c","d"]; list l2 = ["a","1","b","2","c","3"];
integer ListXequY(list lx, list ly) {
if (llList2CSV( ListXnotY(lx,ly) ) =="") return TRUE; else return FALSE;
}
list ListXnotY(list lx, list ly) {// return elements in X list that are not in Y list
list lz = []; integer i = 0; integer n = llGetListLength(lx); for (; i < n; i++) if (llListFindList(ly,llList2List(lx,i,i)) == -1) lz += llList2List(lx,i,i); return lz;
}
default{
state_entry() { llSay(0, "Are we the same lists? " + (string)ListXequY(l1,l2)) //will say in this example: 0 , meaning No }
} </lsl>
Posted with the kind permission of Very Keynes, who originated this script June 2007 in the SL scripters forum http://forums-archive.secondlife.com/54/e4/194138/1.html