将列表传递给 Tcl 过程 [英] Passing list to Tcl procedure

问题描述

将列表传递给 Tcl 过程的规范方法是什么?

What is the canonical way to pass a list to a Tcl procedure?

如果我能得到它，我真的很喜欢它，以便将列表自动扩展为可变数量的参数.

I'd really like it if I could get it so that a list is automatically expanded into a variable number of arguments.

所以类似:

set a {b c}
myprocedure option1 option2 $a

和

myprocedure option1 option2 b c

是等价的.

我确定我以前看过这个，但我在网上找不到它.任何使这两种情况等效的帮助(和代码)将不胜感激.

I am sure I saw this before, but I can't find it anywhere online. Any help (and code) to make both cases equivalent would be appreciated.

这是否被认为是标准的 Tcl 约定.或者我什至吠错了树?

Is this considered a standard Tcl convention. Or am I even barking up the wrong tree?

推荐答案

这取决于您使用的 Tcl 版本，但是:对于 8.5:

It depends on the version of Tcl you're using, but: For 8.5:

set mylist {a b c}
myprocedure option1 option2 {*}$mylist

对于 8.4 及以下:

For 8.4 and below:

set mylist {a b c}
eval myprocedure option1 option2 $mylist
# or, if option1 and 2 are variables
eval myprocedure [list $option1] [list $option2] $mylist
# or, as Bryan prefers
eval myprocedure \$option1 \$option2 $mylist

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