Difference between revisions of "ListXandY"
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{{LSL Header}} __NOTOC__ | {{LSL Header}} __NOTOC__ | ||
[[Category: | [[Category:LSL_User-Defined Functions]] | ||
<div id="box"> | <div id="box"> | ||
== Function: [[list]] ListXandY([[list]] {{LSL Param|lx}}, [[list]] {{LSL Param|ly}}); == | == Function: [[list]] ListXandY([[list]] {{LSL Param|lx}}, [[list]] {{LSL Param|ly}}); == | ||
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See also: [[List|Lists]] | See also: [[List|Lists]] | ||
< | <source lang="lsl2"> | ||
list ListXandY(list lx, list ly) {// return a list of elements common to both lists | list ListXandY(list lx, list ly) {// return a list of elements common to both lists | ||
list lz = []; integer x; | list lz = []; integer x; | ||
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return lz; | return lz; | ||
} | } | ||
</ | </source> | ||
Example:<br /> | Example:<br /> | ||
< | <source lang="lsl2"> | ||
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"]; | ||
list ListXandY(list lx, list ly) {// return a list of elements common to both lists | |||
list lz = []; integer x; | |||
for (x = 0; x < llGetListLength(ly); x++) { | |||
if (~llListFindList(lx,llList2List(ly,x,x))) { | |||
lz = lz + llList2List(ly,x,x); | |||
} | |||
else { | |||
; | |||
} | |||
} | |||
return lz; | |||
} | |||
default{ | default{ | ||
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} | } | ||
} | } | ||
</ | </source> | ||
</div> | </div> | ||
Latest revision as of 15:24, 22 January 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Function: list ListXandY(list lx, list ly);
This function examines two lists, and returns a new list composed of the elements that both lists have in common.
See also: Lists
list ListXandY(list lx, list ly) {// return a list of elements common to both lists
list lz = []; integer x;
for (x = 0; x < llGetListLength(ly); x++) {
if (~llListFindList(lx,llList2List(ly,x,x))) {
lz = lz + llList2List(ly,x,x);
}
else {
;
}
}
return lz;
}
Example:
list l1 = ["a","b","c","d"];
list l2 = ["a","1","b","2","c","3"];
list ListXandY(list lx, list ly) {// return a list of elements common to both lists
list lz = []; integer x;
for (x = 0; x < llGetListLength(ly); x++) {
if (~llListFindList(lx,llList2List(ly,x,x))) {
lz = lz + llList2List(ly,x,x);
}
else {
;
}
}
return lz;
}
default{
state_entry() {
llSay(0, "The two lists have the following items in common: " + llList2CSV(ListXandY(l1,l2)) );
//will say: a, b, c
}
}
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