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Re: Matching backslash in regexp negative lookbehind

by AnomalousMonk (Chancellor)
on Jan 02, 2018 at 22:53 UTC ( #1206567=note: print w/replies, xml ) Need Help??

in reply to Matching backslash in regexp negative lookbehind

I don't understand the significance of the  (?<!\\\\) assertion in the regex in the OP (copied as-is in tybalt89's reply). It suppresses elision of secret values when the single- or double-quoted key phrase is immediately preceded by a  \\ double backslash but not by a single backslash. Is this intended? Output from tybalt89's working code with a few minor output formatting modifications:

c:\@Work\Perl\monks\1nickt>perl {'password' => 'secret'} -> {'password' => '***'} {"password" => "sec\"ret"} -> {"password" => "***"} {\'password' => 'secret'} -> {\'password' => '***'} {\"password" => "sec\"ret"} -> {\"password" => "***"} {\\'password' => 'secret'} -> {\\'password' => 'secret'} {\\"password" => "sec\"ret"} -> {\\"password" => "sec\"ret"}

Give a man a fish:  <%-{-{-{-<

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Re^2: Matching backslash in regexp negative lookbehind
by 1nickt (Monsignor) on Jan 03, 2018 at 00:16 UTC

    The double backslash thing was an artifact, not needed in the code that tybalt89 gave. Thank you for your solutions also.

    The way forward always starts with a minimal test.

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