I want to pass a function call(which returns a string) as a replacement string to Powershell's replace function such that each match found is replaced with a different string.
Something like -
$global_counter = 0
Function callback()
{
$global_counter += 1
return "string" + $global_counter
}
$mystring -replace "match", callback()
Python allows this through 're' module's 'sub' function which accepts a callback function as input. Looking for something similar
Perhaps you are looking for Regex.Replace Method (String, MatchEvaluator). In PowerShell a script block can be used as MatchEvaluator
. Inside this script block $args[0]
is the current match.
$global_counter = 0
$callback = {
$global_counter += 1
"string-$($args[0])-" + $global_counter
}
$re = [regex]"match"
$re.Replace('zzz match match xxx', $callback)
Output:
zzz string-match-1 string-match-2 xxx
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