Difference between revisions of "EOF"

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(Undo revision 438292 by Draconis Neurocam (Talk) Older example version seems of greater value.)
Line 9: Line 9:
 
|notes=EOF is an acronym that stands for "End Of File".
 
|notes=EOF is an acronym that stands for "End Of File".
 
|examples=
 
|examples=
<lsl>
+
<lsl>integer iLine;
integer nline;
+
string card = "~config"
string card;
+
key myquery;
key query;
+
 
list notedata;
+
default{
+
     state_entry() {
default
+
{
+
     state_entry()  
+
    {
+
        card=llGetInventoryName(INVENTORY_NOTECARD,0);
+
 
         if(llGetInventoryType(card) != INVENTORY_NONE)
 
         if(llGetInventoryType(card) != INVENTORY_NONE)
        {
+
             myquery = llGetNotecardLine(card, iLine = 0);
             query = llGetNotecardLine(card, nline = 0);
+
         else
         }
+
            llSay("The \"" + card + "\" notecard is missing! Cannot proceed!");
 
     }
 
     }
+
   
     dataserver(key queryid, string data)
+
     dataserver(key request, string sdata){
    {
+
         if(request == myquery){
         if(queryid == query)
+
             if(sdata == EOF){ // no more text in the notecard
        {
+
                 state ready; //move to the next state
             if(data == EOF)
+
            {  
+
                 llOwnerSay(llDumpList2String(notedata,"\n"));  
+
 
             }
 
             }
             else  
+
             else {
            {
+
                 //here you would process the data
                 notedata+=[data];
+
                //llOwnerSay(sdata);
                 query = llGetNotecardLine(card, ++nline);
+
                 myquery = llGetNotecardLine(card, ++iLine); // now read in next line, and start the dataserver process all over again
 
             }
 
             }
 
         }
 
         }
 +
    }
 +
}
 +
 +
state ready{
 +
    state_entry(){
 +
        llOwnerSay("I'm ready for action!");
 
     }
 
     }
 
}
 
}

Revision as of 23:08, 13 September 2009

Description

Constant: string EOF = "\n\n\n";

The string constant EOF has the value "\n\n\n"

EOF is a value returned by the dataserver event, as a result of a call to llGetNotecardLine, specifically when the requested line is past the end of the notecard. The value returned equals "\n\n\n", which is to say, three newline characters (0x0a).

Essentially, it is used to let you know when you have finished reading information (usually user configurable parameters) from a notecard, and are ready to move onto the next stage or state of the script.

Related Articles

Functions

•  llGetNotecardLine

Events

•  dataserver

Examples

<lsl>integer iLine; string card = "~config" key myquery;

default{

   state_entry() {
       if(llGetInventoryType(card) != INVENTORY_NONE)
           myquery = llGetNotecardLine(card, iLine = 0);
       else
           llSay("The \"" + card + "\" notecard is missing! Cannot proceed!");
   }
    
   dataserver(key request, string sdata){
       if(request == myquery){
           if(sdata == EOF){ // no more text in the notecard
               state ready; //move to the next state
           }
           else {
               //here you would process the data
               //llOwnerSay(sdata);
               myquery = llGetNotecardLine(card, ++iLine); // now read in next line, and start the dataserver process all over again
           }
       }
   }

}

state ready{

   state_entry(){
       llOwnerSay("I'm ready for action!");
   }

} </lsl>

Notes

EOF is an acronym that stands for "End Of File".

Deep Notes

Search JIRA for related Issues

Signature

string EOF = <span title="Three newline characters (0x0a)" style="border-bottom:1px dotted; cursor:help;">"\n\n\n"</span>;