如何匹配這個表達式？

tgwz88

<div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">

我想把上面這個字符串匹配出來，通過sed s///g 或者awk的gsub 進行替換。
可我怎么也匹配不出來，有什么好方法嗎？

詳情可參見9樓

Herowinter

回復 14# tgwz88
其實用sed就可以了，這樣在時間后面加#會容易點。

1. sed -r 's/<[^>]*>//g;s/\s*&nbsp;\s*/\n/g;s/\n+/\n/g;s/\n[0-9]{2}:[0-9]{2}/&#/g' i
   
2. May 30, 2014
   
3. 05:00#Russia political and economic calendar: May 30
   
4. May 29, 2014
   
5. 23:09#Poroshenko discusses help to Ukraine with EBRD chief - statement
   
6. 22:50#Donetsk militia sends 34 Russian volunteers' bodies to Russia - leader
   
7. 22:39#Abkhazia parliament fires PM, urges president to go
   
8. 22:16#EEU to be economically, politically attractive for some states - Federation Council (Part 2)
   
9. 22:05#Abkhazia parliament to consider dismissal of president - opposition leader
   
10. 21:57#Abkhaz opposition ready to discuss all issues related to Ankvab's safety if he resigns voluntarily
    
11. 21:57#Arms depot destroyed in attack on Ukraine National Guard base - statement
    
12. 21:56#Abkhazia leader denies he is stepping down
    
13. 21:56#EEU to be economically, politically attractive for some states - Federation Council
    
14. 21:40#ABKHAZ OPPOSITION READY TO DISCUSS ALL ISSUES RELATED TO ANKVAB'S SAFETY IN CASE HE RESIGNS VOLUNTARILY - ABKHAZ NATIONAL COUNCIL MEMBER SHAMBA
    
15. 21:37#Businessman shot dead in center of Moscow
    
16. 21:36#ABKHAZ PRESIDENT ANKVAB SAYS THAT RUMORS ON HIS RESIGNATION ARE NOT TRUE AND THAT HE CONTINUES CARRYING OUT PRESIDENTIAL DUTIES
    
17. 21:12#Abkhaz opposition passes memorandum demanding reforms, "unconditional legal order"
    
18. 21:10#Fighting under way in Luhansk region's Aleksandrovsk - Ukrainian army (Part 2)
    
19. 20:47#Protestors in central Kharkiv demand Kyiv authorities stop bloodshed
    
20. 20:46#Poroshenko, CoE secretary general discuss investigating Maidan, Odessa events
    
21. 20:41#Pro-Kyiv volunteers says are forming special battalion
    
22. 20:07#Ukraine receives $750 million from World Bank
    
23. 20:05#Soldier dies as army truck attacked in east Ukraine - source
    
24. 19:58#Dollar, euro gain as Ukraine situation keeps ruble under pressure
    
25. 19:52#Main indexes of the Russia stock market for May 29
    
26. 19:51#Potanin disposes of 0.1% direct stake in Norilsk Nickel (Part 2)
    
27. 19:41#Sisi victory in Egypt presidential poll means closer ties with Russia - lawmaker
    
28. 19:39#Donetsk militia detain suspected looters
    
29. 19:37#Police arrest suspected rapist, robber operating in Moscow since 1987 - RIC (Part 2)
    
30. 19:35#First talks between govt, opposition reps take place in Sukhumi
    
31. 19:34#Sibur plans to bid for 17.5% stake in Polief
    
32. 19:30#Potanin disposes of 0.1% direct stake in Norilsk Nickel
    
33. 19:27#Russian stock market ends Thursday up, unaffected by weak U.S. GDP statistics
    
34. Select page:
    
35. 1
    
36. 2
    
37. 3
    
38. 4
    
39. Next

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expert1

40px/20px這2個數(shù)字么？
regexp好難啊感覺。

grep -o 可以么

expert1

哦字符串啊
[^<[^>]+>]
這個呢？

expert1

這樣就好了吧
"^>[^>]+>$"

以^開頭，中間若干個非>的字符，最后>結尾。

expert1

此外，真要替換的話，regexp的greedy match不就行了嗎

<.*> 會匹配最多的，不知道你的目的是，難道又是X-Y problem ?

tgwz88

回復 4# expert1


    謝謝，可一行文本中有N個這樣相同的字符串……,而且這些字符串相鄰之間包含如下字符：
data</div><div style=''><a style=''>data

Herowinter

回復 1# tgwz88
沒看懂題目，是從很大的一個html文件中找出類似

1. <div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">

復制代碼

的片段？

Herowinter

回復 6# tgwz88
能提供一下類似的原始文本數(shù)據(jù)嗎？

   

tgwz88

回復 8# Herowinter

我想根據(jù)數(shù)據(jù)得到如下內容：
May 30, 2014
09:56#Luhansk militia detains 4 Europeans, presumably from OSCE (Part 3)
………等等………


數(shù)據(jù)如下：
<div style="width: 140px; float: left; height: 20px;"><b style='color: #536570;'>May 30, 2014</b></div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:56</div><div style=''><a href=/newsinf.asp?id=509761 style=''>Luhansk militia detains 4 Europeans, presumably from OSCE (Part 3)</a></div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;color:red;">09:50</div><div style='color:red'>RIGHT SECTOR MILITANTS SUSPECTED OF PLOTTING TERROR ACTS DETAINED IN CRIMEA - RUSSIA'S FSB</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:48</div><div style=''>OSCE Minsk Group co-chairs to hold meetings in Baku</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:41</div><div style=''>TGK-2 negotiating sale of plants with Spring, joint projects with Chinese cos</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:41</div><div style=''>Luhansk militia detains 4 Europeans, presumably from OSCE (Part 2)</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:39</div><div style=''>Abkhaz president reiterates he will not resign or dismiss prime minister</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:37</div><div style=''>Lukoil boosts oil production 1.9% in Q1 to 22.5 mln tonnes, production in West Siberia falls 2.8%</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:34</div><div style=''>Retail lending growth in Russia has slowed to "acceptable" 25-30% - CBR</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:31</div><div style=''>Luhansk militia detains 4 Europeans, presumably from OSCE</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:31</div><div style=''>RusHydro investment program without subsidiaries might exceed plan by 25% in 2015-2017</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:30</div><div style=''>Banks have 1020.8 bln rbs on CBR correspondent accounts on May 30.</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:28</div><div style=''><a href=/newsinf.asp?id=509750 style=''>CBR to auction up to 1.2 trln rubles in 3-month loans backed by nonmarket assets June 9, July 14</a></div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:25</div><div style=''>Luhansk militiamen claim to have "disarmed" Ukraine military unit</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:21</div><div style=''>Moscow press review for May 30, 2014</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:20</div><div style=''>Moscow press review for May 30, 2014</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:20</div><div style=''>Moscow press review for May 30, 2014</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:19</div><div style=''>Moscow press review for May 30, 2014</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:17</div><div style=''>Ankvab's refusal to resign a "silly attempt to cling to power" - Abkhaz opposition</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:13</div><div style=''>7 children injured in Ukraine's Donetsk region fighting between May 9 and May 28</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">09:00</div><div style=''>RUSSIA AND FSU GENERAL NEWS</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">08:35</div><div style=''>Results of forex trading on Moscow Exchange on May 29</div><div style="float: none; clear: left;">&nbsp;</div><div class=nws_date style="width: 40px; float: left; height: 20px;;">05:00</div><div style=''><a href=/newsinf.asp?id=509740 style=''>Russia political and economic calendar: May 30</a></div><div style="float: none; clear: left;">&nbsp;</div>