发道题目，大家共勉一下！

stephen412

原帖由 waker 于 2006-8-23 08:57 发表
俺是中国人

看来要写全拼了　Ｎａｎ　Ｊｉｎｇ　
^_^

webyuhang

支持楼主一下，无论技术高低，无论能力大小；大家来到这里都是为了学习和提高；而且waker、烈火兄等几位斑竹做的非常的不错。同时也非常的优秀！楼主的目的也就是让大家了解一下换行下sed的替换工作模式；更多的了解一下sed的工作原理。所以我强烈支持！！！

r2007

楼主的代码还需改进，稍微改动一下原文就不灵了。请继续努力。^_^
改动的原文：

1. I am a student , I like UNIX , I aways read the User and Operation
   
2. Documents, I know it is very important for me .
   
3. But , I do not like the User and Operation Documents . Since it is so
   
4. difficult for reading and understanding . *** User
   
5. and Operation Documents ***
   
6. Last Sunday , one of my friend told me that the User and
   
7. Operation
   
8. Documents
   
9. will upgraded to the Version 3.1 .
   

复制代码

运行楼主的代码后，结果如下
运行的结果：
I am a student , I like UNIX , I aways read the Instruction Documents, I know it is very important for me .
But , I do not like the Instruction Documents . Since it is so
difficult for reading and understanding . *** User
and Operation Documents ***
Last Sunday , one of my friend told me that the User and
Operation
Documents
will upgraded to the Version 3.1 .

stephen412

呵呵！
问题又来了哦！
Let me think about it !

Mr. 2007 ，你将源文件修改为 ：

# more 2.txt
I am a student , I like UNIX , I aways read the User and Operation
Documents, I know it is very important for me .
But , I do not like the User and Operation Documents . Since it is so
difficult for reading and understanding . *** User
and Operation Documents ***
Last Sunday , one of my friend told me that the User and
Operation
Documents
will upgraded to the Version 3.1 .

那么这道题目的目的应该是挑战一下，大家对于NEXT概念的理解了。
当通过NEXT将下一个行text读入自己的sed模式空间后，sed 无法发现在第二个
行中的匹配/User/ .

首先， sed 会逐行读取text ， 但是当他发现匹配的模式后（/User/ /Operation/） , 会进入
       多行的模式空间。
然后， sed 读入第二行，对其进行替换的工作。
但是， 这个时候，我们位于句尾的 User 是无法被匹配上的哦。

例如， 当你将*** User and Operation Documents *** 放在文章的最后，就可以替换了阿！

所以，我这边有一个简单的解决这个问题的答案哦！

就是：

# more 2.txt
I am a student , I like UNIX , I aways read the User and Operation
Documents, I know it is very important for me .
But , I do not like the User and Operation Documents . Since it is so
difficult for reading and understanding . *** User
and Operation Documents ***
Last Sunday , one of my friend told me that the User and
Operation
Documents
will upgraded to the Version 3.1 .

# sed 's/User and Operation Documents/Instruction Documents/g' 2.txt | sed -f sedscrip
I am a student , I like UNIX , I aways read the Instruction Documents, I know it is very important for me .
But , I do not like the Instruction Documents . Since it is so
difficult for reading and understanding . *** Instruction Documents ***
Last Sunday , one of my friend told me that the Instruction Documents
will upgraded to the Version 3.1 .


还是我的那个旧有的sedscript 。

不知道，我的分析，大家认可吗？

[ 本帖最后由 stephen412 于 2006-8-23 14:33 编辑 ]

r2007

还是根据样本数据来设计代码，LZ似乎在解题而不是在提供一个解决方案

样本又变了一下：似乎代码又不灵了，可以说这个代码还有待改善。
I am a student , I like UNIX , I aways read the User and Operation
Documents, I know it is very important for me .
But , User and I do not like the User and Operation Documents . Since it is so
difficult for reading and understanding . *** User
and Operation Documents ***
Last Sunday , one of my friend told me that the User and
Operation
Documents
will upgraded to the Version 3.1 .

stephen412

原帖由 r2007 于 2006-8-23 14:49 发表
还是根据样本数据来设计代码，LZ似乎在解题而不是在提供一个解决方案

样本又变了一下：似乎代码又不灵了，可以说这个代码还有待改善。
I am a student , I like UNIX , I aways read the User and Operation
...

呵呵！同意！

[ 本帖最后由 stephen412 于 2006-8-23 15:07 编辑 ]

Suchangyu

原帖由 r2007 于 2006-8-23 14:49 发表
还是根据样本数据来设计代码，LZ似乎在解题而不是在提供一个解决方案

样本又变了一下：似乎代码又不灵了，可以说这个代码还有待改善。
I am a student , I like UNIX , I aways read the User and Operation
...

与其说是stephen412，不如说是r2007让我更深入的了解了sed。


想问下r2007（和各位兄弟），当原文变成你说的那样：

1. 
   
2. I am a student , I like UNIX , I aways read the User and Operation
   
3. Documents , I know it is very important for me .
   
4. But , User and I do not like the User and Operation Documents . Since it is so
   
5. difficult for reading and understanding .   User
   
6. and Operation Documents
   
7. Last Sunday , one of my friend told me that the User and
   
8. Operation
   
9. Documents
   
10. will upgraded to the Version 3.1 .
    

复制代码

又应该怎么做呢？

[ 本帖最后由 Suchangyu 于 2006-8-25 17:29 编辑 ]

r2007

13, 22, 25楼应该都可以的
25楼的我试了一下，结果如下：

I am a student , I like UNIX , I aways read the ^_^ , I know it is very important for me .
But , User and I do not like the ^_^ . Since it is so
difficult for reading and understanding .   ^_^
Last Sunday , one of my friend told me that the ^_^
will upgraded to the Version 3.1 .

zongyaotang

如果要大量处理这种替换，可以考虑先把原始文本处理成每句一行。
然后统一进行替换。
最后进行排版。

stephen412

原帖由 Suchangyu 于 2006-8-25 17:24 发表


与其说是stephen412，不如说是r2007让我更深入的了解了sed。


想问下r2007（和各位兄弟），当原文变成你说的那样：

[code]
I am a student , I like UNIX , I aways read the User and Operati ...

同意啊 ！r2007 确实很强，但是我的帖子就是一个共勉的帖子啊 ！

PS：又在争谁的贡献这个问题！我们国人的一个很大的....