help on regexp to extract words between ""

조회 수: 2 (최근 30일)
raym
raym 2019년 9월 24일
답변: the cyclist 2019년 9월 24일
aMajorLine = 'var _0x3f86=["\x72\x65\x64","\x67\x72\x65\x65\x6E","\x62\x6C\x75\x65"]';
[a,b] = regexp(aMajorLine,'var _0x3f86=\[\"([\w\\]+)\",?]+\]','tokens')
I want to extract the words inside "". The results is empty. Is there something wrong?

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the cyclist
the cyclist 2019년 9월 24일
I find it difficult to debug someone else's regexp. :-(
Before seeing @Ruger28's elegant solution, I would have done
matches = regexp(aMajorLine,'"[\w*,\\]*"','match')
matches = regexprep(matches,'"','');
Note that I first pull out with the double-quote characters, then strip them out in the second line. It is possible to do this in one regexp step instead, using "lookaround" assertions, but I find that less easy to understand.

추가 답변 (1개)

Ruger28
Ruger28 2019년 9월 24일
if using R2016b or later
aMajorLine = 'var _0x3f86=["\x72\x65\x64","\x67\x72\x65\x65\x6E","\x62\x6C\x75\x65"]';
extractedText = extractBetween(aMajorLine,'"','"');
which gives:
extractedText =
3×1 cell array
{'\x72\x65\x64' }
{'\x67\x72\x65\x65\x6E'}
{'\x62\x6C\x75\x65' }
  댓글 수: 3
Ruger28
Ruger28 2019년 9월 24일
It is pretty amazing! There is also extractBefore and extractAfter, and they are imensly useful when convoluted regexp's are normally needed. Only thing is that they are 2016 or later.
raym
raym 2019년 9월 24일
Unlucky I'm using R2016a

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