#!/usr/bin/perl -l

# http://perlmonks.org/?node_id=1206551

use strict;
use warnings;

my $param = 'password';
for ( q~{'password' => 'secret'}~, q~{"password" => "sec\"ret"}~ )
  {
  local $_ = $_;
  s/
        (                   # capture everything up to the start of th
+e value
          (                   # capture the quotation mark we are usin
+g
            (?<!\\\\)         # not escaped
            [ ' " ]           # either kind of quote
          )                   # end capture quotation mark
          $param              # the key
          \2                  # the same quotation mark
          \s*                 # any amount of space
          (?: => | : )        # perl or JSON key-value "connector"
          \s*                 # any amount of space
          \2                  # the same quotation mark
        )                   # end capture everything up to start of th
+e value
        (?:                 # group but do not capture the value
          \\. | (?!\2) .    # defined as any character except the same
+ quote
        )*                  # any number of times
    /$1***/smxg;            # the closing quotation mark will remain i
+n place

  print $_;
  }

[download]

Outputs: 

{'password' => '***'}
{"password" => "***"}

[download]

In reply to Re: Matching backslash in regexp negative lookbehind by tybalt89
in thread Matching backslash in regexp negative lookbehind by 1nickt

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.