作者查詢 / LPH66
作者 LPH66 在 PTT [ RegExp ] 看板的留言(推文), 共297則
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6F推:樓上看來也不對 他要的東西裡面有 Math.sqrt(169)05/13 00:52
1F推:中間是 Tab 嗎? \t 可以抓到 Tab03/16 12:19
2F推:attribute? 是只限 alt="" 還是連 value=""也要抓?12/27 08:38
3F→:所有的 "" 裡都要抓的話12/27 08:38
4F→:/<[^>"]*("[^>"]*"[^>"]*)*"[^>"]搜尋目標[^>]*>/g12/27 08:39
5F→:也就是搜尋目標前有奇數個 " 為條件12/27 08:39
6F→:這樣萬一你要找的字正好是 title 或 value 時就不會出事12/27 08:40
1F推:在代表 $3 的那組 \( \) 外面再包個 () 然後黏個 ? 這樣?12/14 06:09
2F→:當然這下原本的 $3 就變成 $4 了12/14 06:10
3F→:或者可以看我上一篇回文 用 (?: ) 包起來再黏 ?12/14 06:10
4F→:這樣 $3 就還是 $312/14 06:10
1F推:你問的那段是個一大塊的character-class11/24 22:58
2F→:\w 印象中是whitespace 以及許多其他字11/24 22:59
1F推:都知道 .* 了那何不試試 [a-zA-Z]*11/10 04:34
1F推:/(.{5}) (.{6}) (.{14}) (.{7}) (.{7})/\1,\2,\3,\4,\5/10/21 03:27
2F→:(應該看得懂吧...第一個 / / 之間的更換成第二個 / / 之間10/21 03:27
3F→: 數字就請自行計算填入吧..我是照你這個隨手打的例子打的XD)10/21 03:28
1F推:原來是用了遞迴的 pattern....10/09 03:45
2F→:http://php.net/manual/en/regexp.reference.recursive.php10/09 03:46
3F→:給不知道的人的連結10/09 03:46
4F→:那這樣這系列的語法能表示的字串又多很多了@_@10/09 03:47
1F推:前面判斷用字元用()括起來 然後取代成 \1 ?03/13 09:58
1F推:基本上括號只是分組用啊...除非該式子後面還有\1等02/26 11:05
2F→:另外你確定不是 <body> 和 </body> 的一對嗎?02/26 11:05