TCL:反斜杠问题(regsub) [英] TCL: Backslash issue (regsub)

问题描述

我在尝试读取像 \\server\directory 这样的列表的成员时遇到问题当我尝试使用 lindex 命令获取此变量时出现问题，该命令继续进行 TCL 替换，因此结果是:

I have an issue while trying to read a member of a list like \\server\directory The issue comes when I try to get this variable using the lindex command, that proceeds with TCL substitution, so the result is:

\serverdirectory

然后，我想我需要使用 regsub 命令来避免反斜杠替换，但我没有得到正确的过程.

Then, I think I need to use a regsub command to avoid the backslash substitution, but I did not get the correct proceedure.

我想要的一个例子应该是:

An example of what I want should be:

set mistring "\\server\directory"
regsub [appropriate regular expresion here]
puts "mistring: '$mistring'"  ==> "mistring: '\\server\directory'"

我已经检查了一些关于此的帖子，并保持 \\ 没问题，但是在尝试始终保持单个 \ 后跟任何其他内容时仍然遇到问题可以来到这里的角色.

I have checked some posts around this, and keep the \\ is ok, but I still have problems when trying to keep always a single \ followed by any other character that could come here.

更新:具体例子.我实际上想要保留的是列表中元素的初始格式.该列表由外部应用程序接收.原来的代码是这样的:

UPDATE: specific example. What I am actually trying to keep is the initial format of an element in a list. The list is received by an outer application. The original code is something like this:

set mytable $__outer_list_received
puts "Table: '$mytable'"
for { set i 0 } { $i < [llength $mitabla] } { incr i } {
   set row [lindex $mytable $i]
   puts "Row: '$row'"
   set elements [lindex $row 0]
   puts "Elements: '$elements'"
}

这个的输出，在这种情况下是:

The output of this, in this case is:

Table: '{{
   address \\server\directory
   filename foo.bar
}}'
Row: '{
   address \\server\directory
   filename foo.bar
}'
Elements: '
   address \\server\directory
   filename foo.bar
'

所以我尝试获取地址的值(在这种特定情况下，\\server\directory)以便将其写入配置文件，同时保留原始格式和数据.我希望这能澄清问题.

So I try to get the value of address (in this specific case, \\server\directory) in order to write it in a configuration file, keeping the original format and data. I hope this clarify the problem.

推荐答案

如果您不想替换，请将有问题的字符串放在花括号内.

If you don't want substitutions, put the problematic string inside curly braces.

% puts "\\server\directory"
\serverdirectory

这不是你想要的.但是

% puts {\\server\directory}
\\server\directory

根据您的需要.

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