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Re: replace only full words

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On 28/09/2013 17:11, cerr wrote:
> Hi,
>
> I have a list of sentences and a list of words. Every full word that appears within sentence shall be extended by <WORD> i.e. "I drink in the house." Would become "I <drink> in the <house>." (and not "I <d<rink> in the <house>.")I have attempted it like this:
>    for sentence in sentences:
>      for noun in nouns:
>        if " "+noun+" " in sentence or " "+noun+"?" in sentence or " "+noun+"!" in sentence or " "+noun+"." in sentence:
> 	sentence = sentence.replace(noun, '<' + noun + '>')
>
>      print(sentence)
>
> but what if The word is in the beginning of a sentence and I also don't like the approach using defined word terminations. Also, is there a way to make it faster?
>
It sounds like a regex problem to me:

import re

nouns = ["drink", "house"]

pattern = re.compile(r"\b(" + "|".join(nouns) + r")\b")

for sentence in sentences:
     sentence = pattern.sub(r"<\g<0>>", sentence)
     print(sentence)

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replace only full words cerr <ron.eggler@gmail.com> - 2013-09-28 09:11 -0700
  Re: replace only full words Tim Chase <python.list@tim.thechases.com> - 2013-09-28 11:54 -0500
    Re: replace only full words cerr <ron.eggler@gmail.com> - 2013-09-28 10:43 -0700
      Re: replace only full words MRAB <python@mrabarnett.plus.com> - 2013-09-28 19:07 +0100
        Re: replace only full words cerr <ron.eggler@gmail.com> - 2013-09-28 11:25 -0700
      Re: replace only full words Tim Chase <python.list@tim.thechases.com> - 2013-09-28 13:17 -0500
        Re: replace only full words cerr <ron.eggler@gmail.com> - 2013-09-28 11:25 -0700
  Re: replace only full words MRAB <python@mrabarnett.plus.com> - 2013-09-28 18:00 +0100
    Re: replace only full words Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2013-09-28 20:37 +0300

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