Question

我想只削减ALLS，直到佛罗伦萨才结束。这意味着关闭所有许可证。

如何编写表达式？

<<THIS ELECTRONIC VERSION OF THE COMPLETE WORKS OF WILLIAM
SHAKESPEARE IS COPYRIGHT 1990-1993 BY WORLD LIBRARY, INC., AND IS
PROVIDED BY PROJECT GUTENBERG ETEXT OF ILLINOIS BENEDICTINE COLLEGE
WITH PERMISSION.  ELECTRONIC AND MACHINE READABLE COPIES MAY BE
DISTRIBUTED SO LONG AS SUCH COPIES (1) ARE FOR YOUR OR OTHERS
PERSONAL USE ONLY, AND (2) ARE NOT DISTRIBUTED OR USED
COMMERCIALLY.  PROHIBITED COMMERCIAL DISTRIBUTION INCLUDES BY ANY
SERVICE THAT CHARGES FOR DOWNLOAD TIME OR FOR MEMBERSHIP.>>


ALLS WELL THAT ENDS WELL

by William Shakespeare


Dramatis Personae

  KING OF FRANCE
  THE DUKE OF FLORENCE
  BERTRAM, Count of Rousillon
  LAFEU, an old lord
  PAROLLES, a follower of Bertram
  TWO FRENCH LORDS, serving with Bertram

  STEWARD, Servant to the Countess of Rousillon
  LAVACHE, a clown and Servant to the Countess of Rousillon
  A PAGE, Servant to the Countess of Rousillon

  COUNTESS OF ROUSILLON, mother to Bertram
  HELENA, a gentlewoman protected by the Countess
  A WIDOW OF FLORENCE.
  DIANA, daughter to the Widow


  VIOLENTA, neighbour and friend to the Widow
  MARIANA, neighbour and friend to the Widow

  Lords, Officers, Soldiers, etc., French and Florentine  



<<THIS ELECTRONIC VERSION OF THE COMPLETE WORKS OF WILLIAM
SHAKESPEARE IS COPYRIGHT 1990-1993 BY WORLD LIBRARY, INC., AND IS
PROVIDED BY PROJECT GUTENBERG ETEXT OF ILLINOIS BENEDICTINE COLLEGE
WITH PERMISSION.  ELECTRONIC AND MACHINE READABLE COPIES MAY BE
DISTRIBUTED SO LONG AS SUCH COPIES (1) ARE FOR YOUR OR OTHERS
PERSONAL USE ONLY, AND (2) ARE NOT DISTRIBUTED OR USED
COMMERCIALLY.  PROHIBITED COMMERCIAL DISTRIBUTION INCLUDES BY ANY
SERVICE THAT CHARGES FOR DOWNLOAD TIME OR FOR MEMBERSHIP.>>

Answer 1

在这种特殊情况下，我的意思是“仅针对此特定输入”，您可以将其与以下内容匹配：

>>([^<]+)<<

确保您使用的任何实现都支持在字符串中间匹配，而不是仅在开头。括号表示捕获组。

如果您需要获得不在该组中的测试，您可以使用：

([^>]+>>)[^<]+(<<[.]+)

现在，两个捕获组都有您想要的文本。

编辑：由于您使用的是Java，因此请确保在第一种情况下使用Matcher.find()而不是Matcher.matches()。

Answer 2

可能更灵活，只需删除＆lt;＆lt;。＆gt;＆gt;＆gt;中包含的评论

在perl：

$string =~ s/<<.*?>>//g

正则表达式删除括在双尖括号中的块

2 个答案: