Difference between revisions of "User:Void Singer/Functions"

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m (new goodies for timestamp handling)
m (tweak)
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{{void-box
{{void-box
|title=Arbitrary Timestamp Converters
|title=Timestamp: Converters
|content=
|content=
* These Functions are companions to [[llGetUnixTime]] and [[llGetTimestamp]].
* These Functions are companions to [[llGetUnixTime]] and [[llGetTimestamp]].
=== Unix Timecode to <nowiki>[Y, M, D, h, m, s]</nowiki> list format. ===
=== Unix time code to list format. ===
<lsl>
<lsl>
/*//-- Notes:
/*//-- Notes:
  Time codes before the year 1902 or past the end of 2037
Time codes before the year 1902 or past the end of 2037
  are capped to the first second of 1902 and 2038 respectively
  are capped to the first second of 1902 and 2038 respectively
 
  This version could be improved.
Output is [Y, M, D, h, m, s] list format.
This version could be improved.
//*/
//*/


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/*//--                                                                --//*/</lsl>
/*//--                                                                --//*/</lsl>


=== <nowiki>[Y, M, D, h, m, s]</nowiki> list format to Unix Timecode. ===
=== List format to Unix time code. ===
<lsl>/*//-- Notes:
<lsl>/*//-- Notes:
  Time codes before the year 1902 or past the end of 2037
  Time codes before the year 1902 or past the end of 2037
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{{void-box
{{void-box
|title=Get Weekday from timestamp
|title=Timestamp: Get Weekday from timestamp
|content=
|content=
* These Functions are related to [[llGetUnixTime]] and [[llGetTimestamp]].
* These Functions are related to [[llGetUnixTime]] and [[llGetTimestamp]].

Revision as of 05:17, 13 January 2010

String: Get Reverse Order

Reverse String Order (faster version)

<lsl>string uStringRevF( string vStrSrc ){ 

   integer vIntCnt = llStringLength( vStrSrc );
   @Loop; if (vIntCnt--){
       vStrSrc += llGetSubString( vStrSrc, vIntCnt, vIntCnt );
       jump Loop;
   }
   return llGetSubString( vStrSrc, llStringLength( vStrSrc ) >> 1, -1 );

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

Reverse String Order (smaller memory version)

<lsl>string uStringRevS( string vStrSrc ){ 

   integer vIntCnt = llStringLength( vStrSrc );
   @Loop; if (vIntCnt--){
       vStrSrc += llGetSubString( vStrSrc, vIntCnt, vIntCnt );
       vStrSrc = llDeleteSubString( vStrSrc, vIntCnt, vIntCnt );
       jump Loop;
   }
   return vStrSrc;

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

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String: Find Last Index

Get Last Index of String Test in String Source

<lsl>integer uGetStrIdxRev1( string vStrSrc, string vStrTst ){ 

   integer vIdxFnd =
     llStringLength( vStrSrc ) -
     llStringLength( vStrTst ) -
     llStringLength(
       llList2String(
         llParseStringKeepNulls( vStrSrc, (list)vStrTst, [] ),
         -1)
       );
return (vIdxFnd

List: Get Reverse Order

Reverse List Order (faster version)

<lsl>list uListRevF( list vLstSrc ){ 

   integer vIntCnt = (vLstSrc != []);
   @Loop; if (vIntCnt--){
       vLstSrc += llList2List( vLstSrc, vIntCnt, vIntCnt );
       jump Loop;
   }
   return llList2List( vLstSrc, (vLstSrc != []) >> 1, -1 );

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

Reverse List Order (smaller memory version)

<lsl>list uListRevS( list vLstSrc ){ 

   integer vIntCnt = (vLstSrc != []);
   @Loop; if (vIntCnt--){
       vLstSrc += llList2List( vLstSrc, vIntCnt, vIntCnt );
       vLstSrc = llDeleteSubList( vLstSrc, vIntCnt, vIntCnt );
       jump Loop;
   }
   return vLstSrc;

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

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List: Find Last Index

  • This function is a companion to llListFindList.
    • SPECIAL NOTE: this is only designed to work on string data that will NOT contain the "•" character(alt+7)... please use a different character to suit your needs.

Get Last Index of List Test in List Source

<lsl>integer uGetLstIdxRev( list vLstSrc, list vLstTst ){ 

   integer vIdxFnd =
     (vLstSrc != []) +
     ([] != vLstTst) +
     ([] != llParseString2List(
              llList2String(
                llParseStringKeepNulls(
                  llDumpList2String( vLstSrc, "•" ),
                  (list)llDumpList2String( vLstTst, "•" ),
                  [] ),
                -1 ),
              (list)"•",
              [] ));
return (vIdxFnd

List: Multi-Find Index (First or Last)

Get First Index in List Source of any element in List Test

<lsl>integer uMatchLstIdxFwd( list vLstSrc, list vLstTst ){ 

 return ((llParseString2List( 
            llList2String(
              llParseStringKeepNulls(
                llDumpList2String( vLstSrc, ";" ),
                vLstTst, [] ),
              0 ),
            (list)";", [] ) != []) + 1) %
        ((vLstSrc != []) + 1) - 1;

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

Get Last Index in List Source of any element in List Test

<lsl>integer uMatchLstIdxRev( list vLstSrc, list vLstTst ){ 

 return (vLstSrc != []) -
   (llParseString2List(
      llList2String(
        llParseString2List( 
          llDumpList2String( vLstSrc, ";" ),
          vLstTst, [] ),
        -1 ),
      (list)";",
      [] ) != []) - 1;

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

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Timestamp: Converters

Unix time code to list format.

<lsl> /*//-- Notes: 

Time codes before the year 1902 or past the end of 2037
 are capped to the first second of 1902 and 2038 respectively

Output is [Y, M, D, h, m, s] list format.

This version could be improved.

//*/

list uUnix2StampLst( integer vIntDate ){ if (-llAbs( vIntDate ) < -2145916800){

vIntDate = 2145916800 * (1

Timestamp: Get Weekday from timestamp

Weekday from Unix timestamp

<lsl>/*//-- Note: 

Accurate from 1901 to 2099 (no limiting code)

//*/

string uUnix2WeekdayStr( integer vIntDat ){ 

   return llList2String( ["Thursday", "Friday", "Saturday", "Sunday", "Monday", "Tuesday", "Wednesday"],
                          vIntDate % 604800 / 86400  - (vIntDate < 0) );

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

Weekday from ( Y, M, D ) format

<lsl>/*//-- Note: 

Accurate from 1901 to 2099 (no limiting code)

This version could be improved.

//*/

string uStamp2WeekdayStr( integer vIntYear, integer vIntMonth, integer vIntDay ){ return llList2String ( ["Friday", "Saturday", "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday"], 

                      (vIntYear + (vIntYear >> 2) - ((vIntMonth < 3) & !(vIntYear & 3)) + vIntDay
                      + (integer)llGetSubString( "_033614625035", vIntMonth, vIntMonth )) % 7 );

} /*//-- Anti-License Text --//*/ /*// Contributed Freely to the Public Domain without limitation. //*/ /*// 2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ] //*/ /*// Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ] //*/ /*//-- --//*/</lsl>

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Questions or Comments?

Feel free to leave me a note on my User Talk page.
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