BubbleUp()

It's just the olde standard bubble sort routine. But it does tanslates into k2k rather nicely.

code:

---

break on

; sort some strings...

$array = Peach,Pumpkin,Orange,Grape,Lime,Apple,Rasberry,Cherry,Lemon
$array = bubbleup($array)
for each $element in $array
 ? $element
next

; sort some integers...

$array = 109,75,200,25,38,19,150,11,20
$array = bubbleup($array)
for each $element in $array
 ? $element
next

exit

;============================================
; Bubble sort argv(0)...argv(n) increasing...
;============================================

function bubbleup($argv)
;
 if ubound($argv)
  $i=0
  while $i < ubound($argv)
   $m = $argv[$i]
   $j = $i + 1
   while $j < ubound($argv)+1
    if $argv[$j] < $m
     $m = $argv[$j]
     $argv[$j] = $argv[$i]
     $argv[$i] = $m
    endif
    $j=$j+1
   loop
  $i=$i+1
  loop
 endif
 $bubbleup = $argv
;
endfunction

---

I was once asked if it was possible to sort the NT Eventlog system sources string after one appended a new source...

manupilate Reg_multi_sz key

My answer was that it was basically a pain in the a$$ because one would have to write a routine to parse the "string|string|string" REG_MULTI_SZ thingy, then sort it, then rebuild the "string|string|string" thingy (phew!)...

Well, now that k2k has the SPLIT() function, and with a bubble sort UDF, at least 2/3rd's of the job is covered-off!

code:

---

break on

$system = "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\EventLog\System"

; read the eventlog string, append a new source just before the
; workstation service (whazzup?), sort it and display it !

$sources = bubbleup(split(readvalue("$system", "sources")+"whazzup?","|"))

for each $source in $sources
 ? $source
next

exit

function bubbleup($argv)
;
 if ubound($argv)
  $i=0
  while $i < ubound($argv)
   $m = $argv[$i]
   $j = $i + 1
   while $j < ubound($argv)+1
    if $argv[$j] < $m
     $m = $argv[$j]
     $argv[$j] = $argv[$i]
     $argv[$i] = $m
    endif
    $j=$j+1
   loop
  $i=$i+1
  loop
 endif
 $bubbleup = $argv
;
endfunction

---

Shawn.

[This message has been edited by Shawn (edited 07 April 2001).]