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Re: Regex substitution trouble

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On 2014-10-28 12:28, massi_srb@msn.com wrote:
> Hi Chris, thanks for the reply. I tried to use look ahead assertions, in particular I modified the regex this way:
>
> newstring = re.sub(ur"""(?u)(\$\"[\s\w(?<=\\)\"]+\")""", subst, oldstring)
>
> but it does not work. I'm absolutely not a regex guru so I'm surely missing something. The strings I'm dealing with are similar to formulas, let's say something like:
>
> '$["simple_input"]+$["messed_\\"_input"]+10'
>
> Thanks for any help!
>
Your original post said you wanted to match strings like:

$"somechars_with\\"doublequotes".

This regex will do that:

ur'\$"[^"\\]*(?:\\.[^"\\]*)*"'

However, now you say you want to match:

'$["simple_input"]'

This is different; it has '[' immediately after the '$' instead of '"'.

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Regex substitution trouble massi_srb@msn.com - 2014-10-28 04:02 -0700
  Re: Regex substitution trouble Chris Angelico <rosuav@gmail.com> - 2014-10-28 22:24 +1100
    Re: Regex substitution trouble massi_srb@msn.com - 2014-10-28 05:28 -0700
      Re: Regex substitution trouble Chris Angelico <rosuav@gmail.com> - 2014-10-28 23:59 +1100
      Re: Regex substitution trouble MRAB <python@mrabarnett.plus.com> - 2014-10-28 17:52 +0000
  Re: Regex substitution trouble TP <wingusr@gmail.com> - 2014-10-28 06:25 -0700
  Re: Regex substitution trouble Tim <jtim.arnold@gmail.com> - 2014-10-28 09:38 -0700
  Re: Regex substitution trouble Cameron Simpson <cs@zip.com.au> - 2014-10-29 13:14 +1100
  Re: Regex substitution trouble Eugene <hexumg@gmail.com> - 2014-11-05 13:44 +0300

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