Vim 脚本：扩展字符串中的通配符

发布于 2024-08-12 10:11:28 字数 197 浏览 4 评论 0原文

有一个 vim 变量，其字符串值如下：

foo%:p:r:sbar

%:p:r:s 是 vim 通配符。

如何展开字符串变量中的所有通配符？

不幸的是，expand(my_variable) 没有帮助。我需要指定任何其他参数或使用其他 vim 函数吗？

谢谢。

原文

There is a vim variable with the string value like this:

foo%:p:r:sbar

%:p:r:s is a vim wildcard.

How can I expand all wildcards in the string variable?

Unfortunately expand(my_variable) doesn't help.
Do I need to specify any additional argument or use other vim function?

Thanks.

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缱绻入梦 2024-08-19 10:11:28

尝试 :help Expand()

文档的这一部分似乎与您特别相关：

            Modifiers:
                    :p              expand to full path
                    :h              head (last path component removed)
                    :t              tail (last path component only)
                    :r              root (one extension removed)
                    :e              extension only

            Example: >
                    :let &tags = expand("%:p:h") . "/tags"
            Note that when expanding a string that starts with '%', '#' or
            '<', any following text is ignored.  This does NOT work: >
                    :let doesntwork = expand("%:h.bak")
            Use this: >
                    :let doeswork = expand("%:h") . ".bak"

看起来您的尾随（可能还有前导）字符串无法与 expand() 一起使用。

但这确实有效：

:echo "foo" . expand("%:p:r:s") . "bar"

您可能可以重新编写脚本，以便在与其他字符串组合之前扩展通配符。或者，您可以尝试拆分连接的字符串，展开通配符，然后重新连接。

Try :help expand()

This section of the docs seems especially relevant to you:

            Modifiers:
                    :p              expand to full path
                    :h              head (last path component removed)
                    :t              tail (last path component only)
                    :r              root (one extension removed)
                    :e              extension only

            Example: >
                    :let &tags = expand("%:p:h") . "/tags"
            Note that when expanding a string that starts with '%', '#' or
            '<', any following text is ignored.  This does NOT work: >
                    :let doesntwork = expand("%:h.bak")
            Use this: >
                    :let doeswork = expand("%:h") . ".bak"

It looks like your trailing (and possibly leading) strings won't work with expand().

This does work though:

:echo "foo" . expand("%:p:r:s") . "bar"

Possibly you can rework your script so wildcards are expanded before they are combined with other strings. Alternatively you could try to split the concatenated string, expand the wildcards, then re-concatenate.

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