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Re: I can't understand re.sub

From Jussi Piitulainen <harvesting@is.invalid>
Newsgroups comp.lang.python
Subject Re: I can't understand re.sub
Date 2015-12-01 07:28 +0200
Organization A noiseless patient Spider
Message-ID <lf5r3j6ka9q.fsf@ling.helsinki.fi> (permalink)
References <af27abe4-f81e-4d44-a504-c58d9e71986a@googlegroups.com> <mailman.26.1448872519.14615.python-list@python.org> <lf54mg3eupq.fsf@ling.helsinki.fi> <mailman.49.1448933226.14615.python-list@python.org>

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Erik writes:
> On 30/11/15 08:51, Jussi Piitulainen wrote:
[- -]
>> If you wish to,
>> say, replace "spam" in your foo with "REDACTED" but leave it intact in
>> "May the spammer be prosecuted", a regex might be attractive after all.
>
> But that's not what the OP said they wanted to do. They said
> everything was very fixed - they did not want a general purpose human
> language text processing solution ... ;)

Language processing is not what I had in mind here. Merely this, that
there is some sort of word boundary, be it punctuation, whitespace, or
an end of the string:

   >>> re.sub(r'\bspam\b', '****', 'spamalot spam')
   'spamalot ****'

That's not perfect either, but it's simple and might be somewhat
proportional to the problem.

A real solution should be aware of the actual structure of those lines,
assuming they follow some defined syntax.

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Thread

I can't understand re.sub Mr Zaug <matthew.herzog@gmail.com> - 2015-11-29 13:36 -0800
  Re: I can't understand re.sub Denis McMahon <denismfmcmahon@gmail.com> - 2015-11-29 22:01 +0000
    Re: I can't understand re.sub Mr Zaug <matthew.herzog@gmail.com> - 2015-11-29 17:20 -0800
  Re: I can't understand re.sub Rick Johnson <rantingrickjohnson@gmail.com> - 2015-11-29 17:12 -0800
    Re: I can't understand re.sub Mr Zaug <matthew.herzog@gmail.com> - 2015-11-29 17:24 -0800
  Re: I can't understand re.sub Erik <python@lucidity.plus.com> - 2015-11-29 21:53 +0000
    Re: I can't understand re.sub Jussi Piitulainen <harvesting@is.invalid> - 2015-11-30 10:51 +0200
      Re: I can't understand re.sub Erik <python@lucidity.plus.com> - 2015-12-01 01:26 +0000
        Re: I can't understand re.sub Jussi Piitulainen <harvesting@is.invalid> - 2015-12-01 07:28 +0200
          Re: I can't understand re.sub Erik <python@lucidity.plus.com> - 2015-12-01 21:31 +0000

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