18 lines
387 B
PowerShell
18 lines
387 B
PowerShell
function Compress-RLE ($s) {
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$re = [regex] '(.)\1*'
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$ret = ""
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foreach ($m in $re.Matches($s)) {
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$ret += $m.Length
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$ret += $m.Value[0]
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}
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return $ret
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}
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function Expand-RLE ($s) {
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$re = [regex] '(\d+)(.)'
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$ret = ""
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foreach ($m in $re.Matches($s)) {
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$ret += [string] $m.Groups[2] * [int] [string] $m.Groups[1]
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}
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return $ret
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}
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