ruby-on-rails - 如何使用正则表达式获取城市和密码

Question

我的地址很少，我想通过正则表达式获取该地址中的密码和城市名称

这些是地址

M G Road, Dlf City Phase I Gurgaon, Gurgaon - 122001, Near Sikanderpur Metro Station
Plot 32, Central Business District, Shahdara, Delhi - 110032
Sardar Patel Marg, Chanakya Puri, Delhi - 110021, Diplomatic Enclave
Golf Course Road, Gurgaon Sector 56, Gurgaon - 122011, Near Ghata Gaon

查看只有 6 位数字的密码及其城市名称

    M G Road, Dlf City Phase I Gurgaon, Gurgaon - 122001, Near Sikanderpur Metro Station = Gurgaon - 122001

Plot 32, Central Business District, Shahdara, Delhi - 110032 = Delhi - 110032

Sardar Patel Marg, Chanakya Puri, Delhi - 110021, Diplomatic Enclave = Delhi - 110021

Golf Course Road, Gurgaon Sector 56, Gurgaon - 122011, Near Ghata Gaon = Gurgaon - 122011

我怎样才能得到它？即使也有昏迷，但它的顺序是随机的，有时它出现在前面，有时出现在中间和最后。但必须有 6 位数的密码和 , - 也在那里。

请帮我看看结果

Answer 1

▶ addr = %q|M G Road, Dlf City Phase I Gurgaon, Gurgaon - 122001, Near Sikanderpur Metro Station
▷ Plot 32, Central Business District, Shahdara, Delhi - 110032
▷ Sardar Patel Marg, Chanakya Puri, Delhi - 110021, Diplomatic Enclave
▷ Golf Course Road, Gurgaon Sector 56, Gurgaon - 122011, Near Ghata Gaon|
▶ addr.scan(/(\w+\s+-\s+\d+)(?=,|$)/).flatten
#⇒ [
#  [0] "Gurgaon - 122001",
#  [1] "Delhi - 110032",
#  [2] "Delhi - 110021",
#  [3] "Gurgaon - 122011"
# ]