正则表达式不带引号

Question

I have a very nice regex, which selects quotations from text:

(["']).+?\1

But I need a regex which selects quotations from text without the quotation marks.

For example, I have:

The whales comprise eight extant families: "Balaenopteridae" (the rorquals), "Balaenidae" (right whales), "Cetotheriidae" (the pygmy right whale), "Eschrichtiidae" (the gray whale), "Monodontidae" (belugas and narwhals), "Physeteridae" (the sperm whale), ...

I need to extract texts between quotation marks:

Balaenopteridae, Balaenidae, Cetotheriidae, ...

To extract texts between brackets I use regex: (?<=\\().+?(?=\\)) . It works great, but similar regex for quotation marks does not work. I want use the regex in php.

I tried to use this:

(?<=(["'])).+?(?=\1)

But it doesn't work. Can you help me?

Answer 1

(["'])(.+?)\1

然后只需获取第二组的值即可。