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作者 LPH66 在 PTT [ RegExp ] 看板的留言(推文), 共298則
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1F推:囧 我打錯了 那裡應該是(b|ab(bb)*a)04/20 18:20
2F→:等等我回一篇試著拆的解釋法好了04/20 18:20
2F→:就是上學期修過印象還很深XD04/20 03:58
3F推:/((aa)*b(bb)*)*/04/20 00:47
4F→:唔等等...04/20 00:47
5F→:它可以弄出DFA 沒道理寫不出regexp...@_@04/20 00:48
1F推:在(.*)+後面加上?即可04/18 18:06
2F→:呃我說的是任意字元或換行那裡04/18 18:06
2F推:^[^[]*?\[ 這樣呢? (因為在[]裡[是無意義的)03/29 15:01
3F→:等等我剛剛發現是在uedit32用的@_@03/29 15:03
2F→:你原本的式子是找出一排在行尾的#03/24 00:04
1F推:直覺想到的是排列組合...02/28 23:53
9F推:其實0rz的連結可能會有全數字的喔XD02/24 08:47
10F→:不過看你的需求是要抓出那五個字來的意思吧?02/24 08:48
11F→:[^0-9A-Za-z]([0-9A-Za-z]{5})[^0-9A-Za-z] 再取\1就有了02/24 08:48
12F→:原理是利用前後兩個[^...]來去掉更長的字串02/24 08:49
13F→:不過這樣沒有排除全英文的...要再想想 @@02/24 08:50
14F→:應該中間改([0-9]{5}|[A-Za-z][0-9A-Za-z]{4}|...)排列組合02/24 08:50
15F→:就可以了吧@_@02/24 08:51
1F推:標點喔...U+20xx有一些 U+FExx有一些 U+FFxx也有一些02/12 23:03
2F→:看你想要哪些...(U+20xx如‘“… U+FExx如︵︶︷︸02/12 23:03
3F→:U+FFxx則是ASCII字元的全形版)02/12 23:05
4F→:忘了引號了 它們在U+30xx02/12 23:05
5F→:當然以上並不是全部都是 也不是只有這些地方有02/12 23:06
1F推:那是perl-compatible的語法 需要有前後分隔字元01/23 17:52
2F→:一般是用/ 不過這樣一來pattern中有/時就要用\/01/23 17:52
3F→:所以可以自行換掉 只要前後分隔字元相同即可01/23 17:52
4F→:那這個regexp中就是用#來當分隔字元01/23 17:53
7F推:對 不過有些人在寫為了統一 不管哪裡的+啦*啦都給\掉01/24 14:38
8F→:這樣可以不用去記到底誰在[]裡沒有意義01/24 14:39
9F→:反正因為\的關係一定能正確表示他要的字元01/24 14:39