regex - 如何确保数字中的某些数字不相同

Question

我有几个数字字符串，如下所示:

0000000
0000011
0000012

我想验证模式是这样的:

AAAAABC

哪里 A , B和 C都是不同的数字。所以在这个例子中，只有 0000012应该匹配。

到目前为止，我的正则表达式是 (\d)\1\1\1\1\d\d ，但它不能确保数字不同。我需要做什么？

Answer 1

我想你想要

(\d)\1{4}(?!\1)(\d)(?!\1|\2)\d

说明:

(\d)       # Match a digit, capture in group 1
\1{4}      # Match the same digit as before four times
(?!\1)     # Assert that the next character is not the same digit as before
(\d)       # Match another digit, capture in group 2
(?!\1|\2)  # Assert the next character is different from both previous digits
\d         # Match another digit.

见 regex101 .