blocks|key|2341818|text|(defun+remove-dos-eol+()
++"Do+not+show+%5EM+in+files+containing+mixed+UNIX+and+DOS+line+endings."
++(interactive)
++(setq+buffer-display-table+(make-display-table))
++(aset+buffer-display-table+?\%5EM+[]))|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2341819|作者声明:+Solution+by+Johan+Bockg­rd.我发现它是here。|unstyled|offset|length|2341820|entityMap|0|LINK|mutability|MUTABLE|url|https://web.archive.org/web/20150713053259/http://www.archivum.info/comp.emacs/2007-06/00348/Re-Ignore-%5EM-in-mixed-(LF-and-CR%2BLF)-line-ended-textfiles.html)^0|0|12|4|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|R|8|@]|9|@$G|S|H|T|1|U]]|A|$]]|$1|I|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<pre><code>(defun remove-dos-eol ()
 "Do not show ^M in files containing mixed UNIX and DOS line endings."
 (interactive)
 (setq buffer-display-table (make-display-table))
 (aset buffer-display-table ?\^M []))
</code></pre>

Solution by Johan Bockgård. I found it <a href="https://web.archive.org/web/20150713053259/http://www.archivum.info/comp.emacs/2007-06/00348/Re-Ignore-%5EM-in-mixed-(LF-and-CR+LF)-line-ended-textfiles.html" rel="noreferrer">here</a>.

blocks|key|5870342|text|现代版本的emacs知道如何同时处理UNIX和DOS行结尾，所以当%5EM出现在文件中时，这意味着文件中混合了这两种情况。当存在这样的混合时，emacs默认为UNIX模式，因此%5EMs是可见的。真正的修复方法是修复创建文件的程序，使其使用一致的行尾。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5870343|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Modern versions of emacs know how to handle both UNIX and DOS line endings, so when ^M shows up in the file, it means that there's a mixture of both in the file. When there is such a mixture, emacs defaults to UNIX mode, so the ^Ms are visible. The real fix is to fix the program creating the file so that it uses consistent line-endings.

blocks|key|1788085|text|关于?|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1788086|C-x+RET+c+dos+RET+C-x+C-f+FILENAME+RET|code-block|syntax|javascript|1788087|我制作了一个有两行的文件，第二行有一个回车符。Emacs会以Unix编码打开文件，而切换编码系统则不做任何事情。但是，上面的universal-coding-system-argument可以正常工作。|offset|length|style|CODE|1788088|entityMap^0|0|0|1Q|W|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

What about?

<pre><code>C-x RET c dos RET C-x C-f FILENAME RET
</code></pre>

I made a file that has two lines, with the second having a carriage return. Emacs would open the file in Unix coding, and switching coding system does nothing. However, the <code>universal-coding-system-argument</code> above works.

blocks|key|1788025|text|我相信您可以使用以下命令将文件使用的行编码系统更改为Unix格式|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1788026|C-x+RET+f+UNIX+RET|code-block|syntax|javascript|1788027|如果这样做，那么模式行应该更改为添加单词"(Unix)"，并且所有这些%5EM都应该消失。|1788028|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I believe you can change the line coding system the file is using to the Unix format with 

<pre><code>C-x RET f UNIX RET
</code></pre>

If you do that, the mode line should change to add the word "(Unix)", and all those ^M's should go away.

blocks|key|4454515|text|如果您想查看日志文件并简单地隐藏%5EM而不是实际替换它们，您可以使用Drew+Adam的highlight+extension来做到这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4454516|您可以编写elisp代码或创建键盘宏来执行以下操作|4454517|select+the+whole+buffer
hlt-highlight-regexp-region
C-q+C-M
hlt-hide-default-face|code-block|syntax|javascript|4454518|这将首先突出显示%5EM，然后隐藏它们。如果你想要它们回来，使用``hlt+show-default-face‘|4454519|entityMap|0|LINK|mutability|MUTABLE|url|http://www.emacswiki.org/emacs/HighLight^0|17|J|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

If you'd like to view the log files and simply hide the ^M's rather than actually replace them you can use Drew Adam's <a href="http://www.emacswiki.org/emacs/HighLight" rel="nofollow noreferrer">highlight extension</a> to do so. 

You can either write elisp code or make a keyboard macro to do the following

<pre><code>select the whole buffer
hlt-highlight-regexp-region
C-q C-M
hlt-hide-default-face
</code></pre>

This will first highlight the ^M's and then hide them. If you want them back use `hlt-show-default-face'

blocks|key|1791593|text|Edric的回答应该得到更多的关注。约翰·博克加德的解决方案确实解决了发帖者的抱怨，因为它使%5EM不可见，但这只是掩盖了根本问题，并鼓励进一步混合Unix和DOS行尾。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1791594|正确的解决方案是执行全局M-x+replace-regexp，将所有行尾转换为DOS结尾(或Unix，视情况而定)。然后关闭并重新打开文件(不确定M-x+revert-buffer是否足够)，%5EM要么全部不可见，要么全部消失。|offset|length|style|CODE|1791595|entityMap^0|0|C|I|21|H|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

Edric's answer should get more attention. Johan Bockgård's solution does address the poster's complaint, insofar as it makes the ^M's invisible, but that just masks the underlying problem, and encourages further mixing of Unix and DOS line-endings.

The proper solution would be to do a global <code>M-x replace-regexp</code> to turn all line endings to DOS ones (or Unix, as the case may be). Then close and reopen the file (not sure if <code>M-x revert-buffer</code> would be enough) and the ^M's will either all be invisible, or all be gone.

blocks|key|4454692|text|您可以更改can+M+(%5EM)字符的显示表条目，使其显示为空白，甚至完全消失(空白)。请参阅库pp-c-l.el+(Pretty+Control-L)中的代码以获取灵感。它以任意方式显示%5EL字符。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4454693|编辑:哦，我刚刚注意到@binOr已经提到了这个方法。|4454694|entityMap|0|LINK|mutability|MUTABLE|url|http://www.emacswiki.org/emacs/download/pp-c-l.el|1|http://www.emacswiki.org/emacs/PrettyControlL^0|C|2|1B|9|2L|2|1B|9|0|1M|G|1|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@$9|Y|A|Z|1|10]|$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

You can change the display-table entry of the Control-M (<code>^M</code>) character, to make it displayable as whitespace or even disappear totally (vacuous). See the code in library <a href="http://www.emacswiki.org/emacs/download/pp-c-l.el" rel="nofollow"><code>pp-c-l.el</code></a> (<a href="http://www.emacswiki.org/emacs/PrettyControlL" rel="nofollow">Pretty Control-L</a>) for inspiration. It displays <code>^L</code> chars in an arbitrary way.

Edited: Oops, I just noticed that @binOr already mentioned this method.

blocks|key|1788166|text|把这个放到你的.emacs里：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1788167|(defun+dos2unix+()
++"Replace+DOS+eolns+CR+LF+with+Unix+eolns+CR"
++(interactive)
++++(goto-char+(point-min))
++++++(while+(search-forward+"\r"+nil+t)+(replace-match+"")))|code-block|syntax|javascript|1788168|现在您可以简单地调用dos2unix并删除所有的%5EM字符。|offset|length|style|CODE|1788169|entityMap^0|0|0|A|8|O|2|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

Put this in your .emacs:

<pre><code>(defun dos2unix ()
 "Replace DOS eolns CR LF with Unix eolns CR"
 (interactive)
 (goto-char (point-min))
 (while (search-forward "\r" nil t) (replace-match "")))
</code></pre>

Now you can simply call <code>dos2unix</code> and remove all the <code>^M</code> characters.

blocks|key|5870461|text|如果您在Gnus中的已接收邮件中遇到CRs，可以使用W+c+(清洗CRs)，或者|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5870462|(setq+gnus-treat-strip-cr+t)|code-block|syntax|javascript|5870463|entityMap^0|Q|3|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

If you encounter <code>^M</code>s in received mail in Gnus, you can use <code>W c</code> (wash CRs), or 

<pre><code>(setq gnus-treat-strip-cr t)
</code></pre>

blocks|key|2341845|text|使用dos2unix，unix2dos+(现在的tofrodos)怎么样？|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2341846|entityMap|0|LINK|mutability|MUTABLE|url|http://packages.debian.org/sid/tofrodos^0|O|8|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

what about using dos2unix, unix2dos (now <a href="http://packages.debian.org/sid/tofrodos" rel="nofollow">tofrodos</a>)?

blocks|key|2341918|text|Sudededino008的答案对我不起作用(我不能评论他的答案，所以我必须添加我自己的答案。)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2341919|我可以使用下面的代码来修复它：|2341920|(defun+dos2unix+()
++"Replace+DOS+eolns+CR+LF+with+Unix+eolns+CR"
++(interactive)
++++(goto-char+(point-min))
++++++(while+(search-forward+(string+?\C-m)+nil+t)+(replace-match+"")))|code-block|syntax|javascript|2341921|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

sudeepdino008's answer did not work for me (I could not comment on his answer, so I had to add my own answer.). 

I was able to fix it using this code:

<pre><code>(defun dos2unix ()
 "Replace DOS eolns CR LF with Unix eolns CR"
 (interactive)
 (goto-char (point-min))
 (while (search-forward (string ?\C-m) nil t) (replace-match "")))
</code></pre>

blocks|key|4454771|text|就像binOr说的那样，把这个添加到你在windows上的%25APPDATA%25.emacs.d\init.el中，或者你的配置在哪里。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4454772|;;+Windows+EOL
(defun+hide-dos-eol+()
++"Hide+%5EM+in+files+containing+mixed+UNIX+and+DOS+line+endings."
++(interactive)
++(setq+buffer-display-table+(make-display-table))
++(aset+buffer-display-table+?\%5EM+[]))

(defun+show-dos-eol+()
++"Show+%5EM+in+files+containing+mixed+UNIX+and+DOS+line+endings."
++(interactive)
++(setq+buffer-display-table+(make-display-table))
++(aset+buffer-display-table+?\%5EM+?\%5EM))

(add-hook+'text-mode-hook+'hide-dos-eol)|code-block|syntax|javascript|4454773|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Like binOr said add this to your %APPDATA%.emacs.d\init.el on windows or where ever is your config.

<pre><code>;; Windows EOL
(defun hide-dos-eol ()
 "Hide ^M in files containing mixed UNIX and DOS line endings."
 (interactive)
 (setq buffer-display-table (make-display-table))
 (aset buffer-display-table ?\^M []))

(defun show-dos-eol ()
 "Show ^M in files containing mixed UNIX and DOS line endings."
 (interactive)
 (setq buffer-display-table (make-display-table))
 (aset buffer-display-table ?\^M ?\^M))

(add-hook 'text-mode-hook 'hide-dos-eol)
</code></pre>

Sometimes I need to read log files that have ^M (control-M) in the line endings. I can do a global replace to get rid of them, but then something more is logged to the log file and, of course, they all come back.

Setting unix-style or dos-style end-of-line encoding doesn't seem to make much difference (but unix-style is my default). I'm using the undecided-(unix|dos) coding system.

I'm on windows, reading log files created by log4net (although log4net obviously isn't the only source of this annoyance).

Any hints?

Hiding ^M in emacs

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有时我需要读取行结尾为^M (control-M)的日志文件。我可以做一个全局替换来消除它们，但是更多的东西会记录到日志文件中，当然，它们都会回来。设置unix风格或dos风格的行尾编码似乎没有太大区别(但unix风格是我的默认设置)。我使用的是未决定的-(unix|dos)编码系统。我在windows上阅读log4net创建的日志文件(尽管log4net显然不是这种烦恼的唯一来源)。有什么提示吗

问在emacs中隐藏^M
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