autocmd 检查vim 中的文件名？
我想写一些自动命令来检查文件名是这个还是那个..
我一直在尝试：
autocmd VimEnter * if % is "preamble" | Explore | endif
autocmd VimEnter * if %=="preamble" | Explore | endif
autocmd VimEnter * if &filename == "preamble" | Explore | endif
但是这些都不起作用？
我应该怎么办？
（这个例子过于简单，请注意，我还想有一个 else 语句）。
I want to write some autocmd's that check if the filename is this or that..
I've been trying:
autocmd VimEnter * if % is "preamble" | Explore | endif
autocmd VimEnter * if %=="preamble" | Explore | endif
autocmd VimEnter * if &filename == "preamble" | Explore | endif
but none of this works?
WHat should I do?
(this example is over-simplified, note that I'd also like to have an else statement).
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您应该获取当前文件名
@%。例如，echo @%将为您提供文件名，而echo %则不会。但是，对于文件上的操作，请使用%，例如source %。这可能应该适合您想做的事情：
You should get the current file name as
@%. For e.g.,echo @%will give you the filename, whereasecho %will not. However, for actions on the file, use%, e.g.source %.This should probably work for what you want to do:
原帖中的示例有两个问题：
%和&filename都不会返回您使用的文件名。查看
expand()函数的帮助，了解如何获取文件名：:h Expand()您忽略了 autocmd 中的槽，其中通常会指定 file-matching-pattern。 autocmd 中的第三个槽（在您的版本中为
*）实际上是匹配文件名的模式。请参阅:h autocmd-patterns。如果您想忽略模式槽，它应该可以正常工作，但如果是这样，您必须解决上面第 1 段中的问题。例如，autocmd BufRead,BufNewFile * if Expand('%') =~ "前导码" |探索 |结束There are two problems with the examples in the original post:
Neither the
%nor&filenamewill return the filename as you've used them.Look at the help for the
expand()function to see how to get the filename::h expand()You're ignoring the slot in autocmd where a file-matching-pattern would ordinarily be specified. The third slot in the autocmd (
*in your versions) is actually a pattern to match filenames. See:h autocmd-patterns. It should work okay if you want to ignore the pattern slot, but if so, you've got to fix the problem in paragraph 1 above. E.g.,autocmd BufRead,BufNewFile * if expand('%') =~ "preamble" | Explore | endif其他信息 在 autocmd 中使用 '@%'
某些
autocmd事件 不支持@%命名寄存器读取当前文件 姓名。在这些情况下，最好使用Additional Info Using '@%' with autocmd
Some
autocmdevents do not support the@%named register to read the current file name. In these cases it is better to use <afile>: