How can I match a quote-delimited string with a regex?

Question

If I\'m trying to match a quote-delimited string with a regex, which of the following is \"better\" (where \"better\" means both more efficient and less likely to do somethi

Answer 1

More complicated, but it handles escaped quotes and also escaped backslashes (escaped backslashes followed by a quote is not a problem)

/(["'])((\\{2})*|(.*?[^\\](\\{2})*))\1/

Examples:
  "hello\"world" matches "hello\"world"
  "hello\\"world" matches "hello\\"