Vanity Formats [img]
To make matters worse, vain fleshlings will sometimes represent phone numbers with words. These so-called vanity phone numbers start with 1 and the area code (ie. 1-123-) but after that they will continue with a mix of letters (upper or lowercase), numbers and dashes. They are restricted to using exactly 7 letters and numbers (following the 1 and area code), but dashes can be inserted at any point other than immediately after another dash. Flahlings make things so complicated!
我一直在解决这个难题;我已经能够处理第一组整数和破折号,但我不能让字母数字部分工作。 我使用的是Python3,到目前为止我已经做到了:
vanity_number = r'[+]?(1-)[0-9]{3}-[a-zA-Z0-9-]{7}'
这在一定程度上是可行的,但是我需要它来分别计算破折号和字母数字,这样像1-345-qpG-8s-vd这样的东西仍然适合这个模式。谢谢你的帮助。你知道吗
最后一部分应该由7个字母组成。如果我理解正确的话,每个破折号后面都可以有一个可选的破折号,但是不能有两个破折号相邻,可能不应该以破折号结尾。你知道吗
如果允许以破折号结尾,则删除结尾处的单词边界
\b
。你知道吗Here is a demo at regex101
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