正则表达式读取用引号和分号分隔的行

Question

For example, I have one line of code:

"12345";"ISBN345";"8"

I want to write a regular expression to extract 12345, ISBN345, 8.

How do I write this regular expression?

updated:sorry.

I did not make it clear. There are my real data :

"276729";"052165615X";"3"

(my data has many lines and this line is only an example). I want to extract 276729 (user id) as one element, 052165615X (book number) as one, 3 (book rating) as one(that means we need to match with the regular expression three times per line,so I can create three objects each time we read one line) but not extract 276729 052165615X 3 at one time

Answer 1

Option 1: Will match and split into num, num, letters, num

"(\d+)";"(\d+)(.+)";"(\d+)"

Option 2: Will match and split into num, numletters, num

"(\d+)";"(\d+.+)";"(\d+)"

Answer 2

"([^"]+)"(;"([^"]+)")*

[^"]+ will match a non-empty sequence of non-quote characters. You can switch + to * if the strings can be empty.

This entire regex will a one quote sequence of not-quotes followed by zero or more quoted sequences separated by semicolons.

Answer 3

I think this should do it for you.

"(\\d+)";"(.*?)";"(\\d+)"

Presuming the first and third values are always numbers, and only numbers. The second value seems like it could be anything so .*? will allow everything to be there until the first double quote it encounters.