정규식 - 웹 개발시 필요한 주요 레귤러 익스프레션들

번역은 필요 없을 듯해서 생략요 ^^

http://www.mkyong.com/tutorials/java-regular-expression-tutorials/

아래에 그대로 카피해서 올려둡니다.

• Username regular expression
  Username regular expression example in Java and unit tested with TestNG.

  ^[a-z0-9_-]{3,15}$

• Password regular expression
  Password regular expression example in Java and unit tested with TestNG.

  ((?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%]).{6,20})

• Hex color code regular expression
  Hex color code regular expression example in Java and unit tested with TestNG.

  ^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$

• E-mail address regular expression
  E-mail address regular expression example in Java and unit tested with TestNG.

  ^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@
  [A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$

• Image file extension regular expression
  Image file extension regular expression example in Java and unit tested with TestNG.

  ([^\s]+(\.(?i)(jpg|png|gif|bmp))$)

• IP Address regular expression
  IP Address regular expression example in Java and unit tested with TestNG.

  ^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.
  ([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\.([01]?\\d\\d?|2[0-4]\\d|25[0-5])$

• Time in 12 Hours format regular expression
  Time in 12 Hours format regular expression example in Java and unit tested with TestNG.

  (1[012]|[1-9]):[0-5][0-9](\\s)?(?i)(am|pm)

• Time in 24 Hours format regular expression
  Time in 24 Hours format regular expression example in Java and unit tested with TestNG.

  ([01]?[0-9]|2[0-3]):[0-5][0-9]

• Date regular expression
  Date regular expression example in Java and unit tested with TestNG.

  (0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[012])/((19|20)\\d\\d)

• HTML tag regular expression
  HTML tag regular expression example in Java and unit tested with TestNG.

  <("[^"]*"|'[^']*'|[^'">])*>

• HTML Links regular expression
  HTML links regular expression example in Java and unit tested with TestNG.

  (?i)<a([^>]+)>(.+?)</a>

  \s*(?i)href\s*=\s*(\"([^"]*\")|'[^']*'|([^'">\s]+));