Question

我在html td标签中有一个url，分为多行，我需要加入。

示例：

<div class="a">
<div><img src="https://lh6.googleusercontent.com/-duniA1A1C0c/UXWqPdzXeCI/AAAAAAAAKio/Mj3DIbKXV7s/w126-h126-p/HD_beautiful_nature_landsacpe_2.jpg" /></div>
<div><img src="https://lh5.googleusercontent.com/-IdeJ_2r_7hk/UJ9DtKJx0TI/AAAAAAAAFnw/sZ8FQ-8lGjE/w126-h126-p/fabulous-nature-scenery-25-photos-12.jpg" /></div>
<div><img src="https://lh6.googleusercontent.com/--0CjkmkSU_8/U-DkyWhcX5I/AAAAAAAAIf8/hvpgW5UCnb0/w126-h126-p/Nature-0057.jpg" /></div>
<div><img src="https://lh3.googleusercontent.com/-etqb2vA6RFg/T0Jmv2PtprI/AAAAAAAAEmY/Rz30YnMNX7E/w126-h126-p/Japanese+Nature+Picture+%2818%29.jpg" /></div>
<div><img src="https://lh6.googleusercontent.com/-Hf-iWqukw-w/UJ9Ds7xTYQI/AAAAAAAAFns/wNQ-2K9no-Y/w126-h126-p/fabulous-nature-scenery-25-photos-11.jpg" /></div>
</div>
<div class="b">
<div><img src="https://lh6.googleusercontent.com/-duniA1A1C0c/UXWqPdzXeCI/AAAAAAAAKio/Mj3DIbKXV7s/w126-h126-p/HD_beautiful_nature_landsacpe_2.jpg" /></div>
<div><img src="https://lh5.googleusercontent.com/-IdeJ_2r_7hk/UJ9DtKJx0TI/AAAAAAAAFnw/sZ8FQ-8lGjE/w126-h126-p/fabulous-nature-scenery-25-photos-12.jpg" /></div>
<div><img src="https://lh6.googleusercontent.com/--0CjkmkSU_8/U-DkyWhcX5I/AAAAAAAAIf8/hvpgW5UCnb0/w126-h126-p/Nature-0057.jpg" /></div>
<div><img src="https://lh3.googleusercontent.com/-etqb2vA6RFg/T0Jmv2PtprI/AAAAAAAAEmY/Rz30YnMNX7E/w126-h126-p/Japanese+Nature+Picture+%2818%29.jpg" /></div>
<div><img src="https://lh6.googleusercontent.com/-Hf-iWqukw-w/UJ9Ds7xTYQI/AAAAAAAAFns/wNQ-2K9no-Y/w126-h126-p/fabulous-nature-scenery-25-photos-11.jpg" /></div>
</div>

我需要加入一切看起来像这样：

<td>
<a
href="fix_detail.jsp?fix=23056&list=yes">PICTURE
ROCKS</a>&nbsp;
</td>

我更愿意实现一个sed循环，但我不明白如何循环搜索结束＆＃34; td＆＃34;标签

<a href="fix_detail.jsp?fix=23056&list=yes">PICTURE ROCKS</a>&nbsp;</td>

Answer 1

保持理智，只需使用awk：

$ cat file
foo
<td>
<a
href="fix_detail.jsp?fix=23056&list=yes">PICTURE
ROCKS</a>&nbsp;
</td>
bar

$ awk '/<td>/{f=1} /<\/td>/{f=0} {ORS=(f?" ":"\n"); print}' file
foo
<td> <a href="fix_detail.jsp?fix=23056&list=yes">PICTURE ROCKS</a>&nbsp; </td>
bar

在20世纪70年代中期发明awk时，所有神秘的sed构造在多行中做事都变得过时了，它们今天只用作脑筋急转弯。

Answer 2

这是一个sed one liner

sed '/<td>/{:loop;/<\/td>/!{N;s/\n/ /}; t loop}' file

输出

<td> <a href="fix_detail.jsp?fix=23056&list=yes">PICTURE ROCKS</a>&nbsp; </td>

首先匹配“＆lt; td＆gt;”，然后它会启动一个追加行的循环，并在到达“＆lt; / td＆gt;”时终止标签

使用sed加入html行

2 个答案: