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version sorting works

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Luke Sampson
2013-06-20 14:52:29 +10:00
parent ca56937c45
commit a47d9564a1
1 changed files with 21 additions and 8 deletions
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29
qsort-test.ps1
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@@ -12,17 +12,30 @@ function qsort($ary, $fn) {
return @() + $lesser + @($pivot) + $greater
}
function comp_ver($a, $b) {
if($a -lt $b) { return -1 }
if($a -gt $b) { return 1 }
function version($ver) {
$ver.split('.') | % {
$num = $_ -as [int]
if($num) { $num } else { $_ }
}
}
function compare_versions($a, $b) {
$ver_a = version $a
$ver_b = version $b
for($i=0;$i -lt $ver_a.length;$i++) {
if($i -gt $ver_b.length) { return 1; }
if($ver_a[$i] -gt $ver_b[$i]) { return 1; }
if($ver_a[$i] -lt $ver_b[$i]) { return -1; }
}
if($ver_b.length -gt $ver_a.length) { return -1 }
return 0
}
$test = "10.1.1,4.2.4,4.2.25,4.2,10.1.1.r0-preview,10.1.1.r2-final".split(',')
#comp_ver 'a', 1
$test = "fred,1,6,2,7,9,12,89,45,12,65,1,12,amy".split(',')
#$test = "fred,1,6".split(',')
$sorted = qsort $test comp_ver
#split_version '10.1.r0-preview'
compare_versions '4.2.4' '4.2.4.25'
$sorted = qsort $test compare_versions
$sorted |% { write-host "'$_'," -no }
write-host ""