如何使用正则表达式将双引号替换为字符串内的单引号？

Question

I have a page which contains //script[@data-type="application/ld+json"]

the contents of this script are similar to the following.

<script>
{
  "one": "some text here",
  "two": "some "other" text here"
}
</script>

Is it possible to replace double quotes with single quotes using regex so I have:

"two": "some 'other' text here"

Or just remove the inner quotes completely

I can use the replace function

The main problem is I don't know how to match only quotes inside of a string.

Answer 1

In general, it can't be done because your content is ambiguous. Consider:

{
  "one": "some text here",
  "two": "some ", "three": " text here"
}

You would have to adopt some rule like saying that the " after some is treated as a terminal quote if followed by , or } (optionally preceded by whitespace), or as the start quote of a nested string otherwise. That kind of logic seems far beyond what you can express in regular expressions. And in any case, it will sometimes give you the wrong answer.

Answer 2

If it is like this, maybe you should try something like the below regex.

"(?=\w+"| )(?!\w+":)

I don't have all of your scope, I just wrote based on your pattern that you put here.

You can test your regex on Sublime or https://regexr.com/