如何通过重定向符号（LT;和＆gt;），以Windows批处理文件功能？ [英] How to pass redirect symbols (< and >) to a Windows batch file function?

问题描述

假设这个批处理文件

call :SomeFunction "a string with an > arrow"

goto:eof

:SomeFunction
  echo %~1
goto:eof

的这个输出是

call :SomeFunction "a string with an > arrow"
echo a string with an  1>arrow
goto:eof
goto:eof

和一个名为箭头创建包含一个字符串的。注意 1方式＆gt;

and a file named arrow is created which contains a string with an. Note the 1>.

我怎样才能prevent从国际preting命令处理器的＆GT; 在这种情况下，一个重定向符号？ （提示：我试过 ^＆GT; 这不是吧）

How can I prevent the command processor from interpreting the > as a redirection symbol in this situation? (Hint: I've tried ^> and that's not it.)

编辑：在其他运营商（ | 和＆安培; ），当然也影响了

The other operators (| and &) are of course also affected.

推荐答案

您可以使用 FOR / F 命令，代替：

You can use FOR /F command for that, instead of:

echo %~1

使用这样的：

FOR /F "delims=" %%i IN ("%~1") DO echo %%i

编辑：注意，现在你需要传递时，用双引号分隔的参数来处理怪逃跑的行为。例如一^ 2将逃跑的如一^^ 2如果你试图用没有问题一^^ 2或一\\ ^ 2。你可以这样做（从您自己的评论）是使用一个临时变量，做逃逸（然后去除双引号）：

note that now you need to deal with strange escaping behaviors when you pass an argument delimited with double quotes. For example "a^2" will be escaped as "a^^2", no matters if you try with "a^^2" or "a\^2". What you may do (from your own comment) is to use a temporary variable and do escaping (then removing double quotes):

set TEMP=%TEMP:>=^>%

如果你不想去关心逃脱你也可以尝试：

If you do not want to care about escaping you may also try:

set "tmp="many \ ^ > ' characters and quotes""

请注意双引号括设置参数和许多的特殊的字符串中的字符。在这种情况下 TMP 环境变量确实将：多\\ ^＆GT;'字符和引号，你可以只是作为：

Note double quotes to enclose set argument and many special characters in the string. In this case tmp environment variable will literally be: "many \ ^ > ' characters and quotes", you can simply use it as:

FOR /F "delims=" %%1 IN (%tmp%) DO echo %%1

请注意％1 而不是的％〜1。现在让我们来使其更加复杂。如果你需要双引号<大骨节病>您的字符串，然后有些字符不会被转义内（<大骨节病>＆安培; 和<大骨节病> | 为例）。你可能只是删除报价：

Note %1 instead of "%~1". Let's now make it more complicated. If you need double quotes " inside your string then some characters won't be escaped (& and | for example). You may simply remove quotes:

set "tmp=many \ ^ > ' | & characters and quotes"

用于：

FOR /F "delims=" %%1 IN ("%tmp%") DO echo %%1

或者

FOR /F "delims== tokens=2" %%1 IN ('set tmp') DO echo %%1

不要忘了，你可以使用backtips划的字符串，如果您指定有usebackq 选项。您可以使用一个临时文件或... ...好PowerShell脚本...

Don't forget you can use backtips to delimit FOR string if you specify usebackq option. You may use a temporary file or...better...a PowerShell script...

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