正则表达式选择双引号之间的特定字符

Question

I would like to extract specific character ie ; that are located between quotes ( " ) with a Regex expression.

String example :

Lorem;ipsum;"dolor;sit;";amet;

Should select every ; in quotes :

Lorem;ipsum;"dolor ; sit ; ";amet;

I tried this one but it doesn't work

(?<=\")(;)*(?=\")

Any idea ? Thank you in advance

Answer 1

You will have to do it in two steps:

1. select every parts between quotes: /"[^"]+"/gm
2. in these matchs, search for ;

you should be able to use String.prototype.replace with the given regex and look for ";" in your replace callback.

here is a demo:

 function escapeCsvDelimiter(input) { return input.replace(/"[^"]+"/gm, (match) => match.replace(/;/g, '\\\\;')); } const test = 'Lorem;ipsum;"dolor;sit;";amet;"jhv;"'; const result = escapeCsvDelimiter(test); console.log(result);