User talk:ANSI Soderstrom/Misc useful functions

printf

Your printf will have a problem if the text being inserted contains "%s". I'd recommend either splitting the input string into a list or copying the output into a new string so that it doesn't get the opportunity to chew on it's own tail. -- Strife ^{(talk|contribs)} 12:10, 14 May 2013 (PDT)

<lsl> // modify a string in ANSI-C style // returns a string with all replacements for "modifier".... based on the equivalent positions in the list-content string printf(string sentence, list insertation) {

   integer count = llGetListLength(insertation);
   if(count) {
       list modifiers = ["%s"];
       list split = llParseString2List(sentence, [], modifiers);
       integer last = llGetListLength(split) - 1;
       integer i = 0;
       integer k = -1;
       do {
           while(!~llListFindList(modifiers, llList2List(split, ++k, k))) {
               if(k == last) {//this is an error!
                   return (string)split;
               }
           }
           //string splitter = llList2String(split, k);
           //if (splitter == "%s")
           split = llListReplaceList(split, llList2List(split, i, i), k, k);
       } while(count > ++i);
       return (string)split;
   }
   return "Error, the insertation list is empty!\n(sentence: " + sentence + ")";

} </lsl>

Soderstrom's function got me thinking, but I find this version more useful. The text to be tailored can contain a number of specifically identified insertion points, the order not being important. Insertion points are identified as %0 to %9. Please don't complain that it'll fail if any insertion text includes a % ... I just won't script that possibility. Similarly I wouldn't script a null insertion list :) Omei Qunhua 06:43, 15 May 2013 (PDT)

<lsl> string CustomiseText(string sentence, list insertation) {

   integer i;
   integer match;
   while ( (match = llSubStringIndex(sentence, "%") ) != -1)
   {
       i = (integer) llGetSubString(sentence, match+1, match+1);
       sentence = llDeleteSubString(sentence, match, match +1);
       sentence = llInsertString(sentence, match, llList2String(insertation, i) );
   }
   return sentence;

}

string OwnerName;    // script will contain code to populate this
string WelcomeMsg = "Hello %0, welcome to this home owned by %1";   // Typically this text might come from a notecard

   llSay(0, CustomiseText(WelcomeMsg, [llDetectedName(0), OwnerName]) );
   

</lsl>