User:Fred Gandt/Scripts/Functions

My Contributions

I have implemented a V# system to make it more obvious if a function is updated. The V# forms part of the title of each function.

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All my scripting is written for compilation as MONO

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Functions for specific tasks (this page)

Legal Stuff

The legal stuff about contributing to this wiki (worth reading).

PJIRA Issue Tracker

The issues I have filed on the PJIRA

Tuition

Tuition scripts, notes, videos and screenshots etc. (hardly any content yet)

Functions

Here is some stuffs wot does fings

GetUniqueListEntries ( V1 )

Feed a list in and get out a list which contains no duplicate entries. Nice and fast.

<lsl>// V1 //

list GetUniqueListEntries(list src) {

   integer index = 0;
   list output = [];
   list entry = [];
   do
   {
       output += (entry = llList2List(src, 0, 0));
       src = llDeleteSubList(src, 0, 0);
       while((index = llListFindList(src, entry)) != -1)
       src = llDeleteSubList(src, index, index);
   }
   while(llGetListLength(src));
   return output;

}

// Usage Example //

list source = ["How", "much", "wood", "would", "a", "woodchuck", "chuck", "if", "a", "woodchuck", "could", "chuck", "wood", "?"];

default {

   state_entry()
   {
       llOwnerSay(llDumpList2String(GetUniqueListEntries(source), ", "));
       // Return == "Object: How, much, wood, would, a, woodchuck, chuck, if, could, ?"
   }

}</lsl>

MultiListReplace ( V1 )

Replace entries in a list with other entries.

<lsl>// V1 //

list MultiListReplace(list src, list thisnthats) {

   integer index = 0;
   integer lc = 0;
   integer ll = llGetListLength(thisnthats);
   do
   {
       list this = llList2List(thisnthats, lc, lc);
       ++lc;
       while((index = llListFindList(src, this)) != -1)
       src = llListReplaceList(src, llList2List(thisnthats, lc, lc), index, index);
   }
   while((++lc) < ll);
   return src;

}

// Usage Example //

list source = ["How", "much", "wood", "would", "a", "woodchuck", "chuck", "if", "a", "woodchuck", "could", "chuck", "wood", "?"];

default {

   state_entry()
   {
       llOwnerSay(llDumpList2String(MultiListReplace(source, ["woodchuck", "primrezzer", "much", "many", "wood", "prims", "chuck", "rez"]), ", "));
       // Return == "Object: How, many, prims, would, a, primrezzer, rez, if, a, primrezzer, could, rez, prims, ?"
   }

}</lsl>

MultiStringReplace ( V3 )

Replace parts of a string with other strings.

<lsl>// V3 //

string MultiStringReplace(string src, list thisnthats) {

   integer index = 0;
   integer lc = 0;
   integer ll = llGetListLength(thisnthats);
   do
   {
       string this = llList2String(thisnthats, lc);
       ++lc;
       while((index = llSubStringIndex(src, this)) != -1)
       src = llInsertString(llDeleteSubString(src, index, (index + (llStringLength(this) - 1))),
                            index, llList2String(thisnthats, lc));
   }
   while((++lc) < ll);
   return src;

}

// Usage Examples //

string source = "How much wood would a woodchuck chuck if a woodchuck could chuck wood?";

default {

   state_entry()
   {
       llOwnerSay(MultiStringReplace(source, ["woodchuck", "primrezzer", "much", "many", "wood", "prims", "chuck", "rez"]));
       // Return == "Object: How many prims would a primrezzer rez if a primrezzer could rez prims?"
       
       llOwnerSay(MultiStringReplace(source, ["much", "many", "wood", "prims", "woodchuck", "primrezzer", "chuck", "rez"]));
       // Return == "Object: How many prims would a primsrez rez if a primsrez could rez prims?"
       
       llOwnerSay(MultiStringReplace(source, ["farmers", "primrezzer", "much", "many", "wood", "prims", "chuck", "rez"]));
       // Return == "Object: How many prims would a primsrez rez if a primsrez could rez prims?"
       
       llOwnerSay(MultiStringReplace(source, ["much", "many", "wood", "prims", "farmers", "primrezzer", "chuck", "rez"]));
       // Return == "Object: How many prims would a primsrez rez if a primsrez could rez prims?"
       
       llOwnerSay(MultiStringReplace(source, ["woodchuck", "primrezzer", "much", "many", "wood", "prims", "farmers", "piggies", "chuck", "rez"]));
       // Return == "Object: How many prims would a primrezzer rez if a primrezzer could rez prims?"
   }

}</lsl>

StrideOfList ( V1 )

Get strided entries from a list. And yes, I know about llList2ListStrided. Frankly, this works better.

<lsl>// V1 //

list StrideOfList(list src, integer stride, integer start, integer end) {

   list l = [];
   integer ll = llGetListLength(src);
   if(start < 0)start = (ll + start);
   if(end < 0)end = (ll + end);
   if(end < start) return llList2List(src, start, start); // Better than nothing.
   while(start <= end)
   {
       l += llList2List(src, start, start);
       start += stride;
   }
   return l;

}

// Usage Examples //

list source = ["How", "much", "wood", "would", "a", "woodchuck", "chuck", "if", "a", "woodchuck", "could", "chuck", "wood?"];

default {

   state_entry()
   {
       llOwnerSay(llDumpList2String(StrideOfList(source, 1, 0, -1), ", "));
       // Return == "Object: How, much, wood, would, a, woodchuck, chuck, if, a, woodchuck, could, chuck, wood?"

       llOwnerSay(llDumpList2String(StrideOfList(source, 2, 0, -2), ", "));
       // Return == "Object: How, wood, a, chuck, a, could"

       llOwnerSay(llDumpList2String(StrideOfList(source, 4, 3, -1), ", "));
       // Return == "Object: would, if, chuck"

       llOwnerSay(llDumpList2String(StrideOfList(source, 5, 0, -4), ", "));
       // Return == "Object: How, woodchuck"

       llOwnerSay(llDumpList2String(StrideOfList(source, 3, 6, -7), ", "));
       // Return == "Object: chuck"
       
       llOwnerSay(llDumpList2String(StrideOfList(source, 3, 7, -7), ", "));
       // Return == "Object: if"
   }

}</lsl>