例如,是否可以使用正则表达式来匹配“2009年2月”?
答案 0 :(得分:42)
沿着
的路线\b(?:Jan(?:uary)?|Feb(?:ruary)?|...|Dec(?:ember)?) (?:19[7-9]\d|2\d{3})(?=\D|$)
这是
\b # a word boundary (?: # non-capturing group Jan(?:uary)? # Jan(uary) |Feb(?:ruary)? # |... # and so on |Dec(?:ember)? # Dec(ember) ) # end group # a space (?: # non-capturing group 19[7-9]\d|2\d{3} # 1970-2999 ) # end group (?=\D|$) # followed by: anything but a digit or the end of string
答案 1 :(得分:20)
我必须在这方面努力匹配一些边缘的例子,但我最终使用
(\b\d{1,2}\D{0,3})?\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?)\D?(\d{1,2}\D?)?\D?((19[7-9]\d|20\d{2})|\d{2})
以日期为单位捕捉日期
答案 2 :(得分:1)
修改Beerswiller的答案,如果你想要“st”/“nd”/“rd”变种:
(\b\d{1,2}\D{0,3})?\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?)\D?(\d{1,2}(st|nd|rd|th)?)?(([,.\-\/])\D?)?((19[7-9]\d|20\d{2})|\d{2})*
答案 3 :(得分:0)
此正则表达式说明了逗号之间的一些间距。
有时候并不总是在正确的地方。
((\b\d{1,2}\D{0,3})?\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?)\D?)(\d{1,2}(st|nd|rd|th)?)?((\s*[,.\-\/]\s*)\D?)?\s*((19[0-9]\d|20\d{2})|\d{2})*