在 vi 中自定义单词分隔符
vi 将破折号 - 和空格 视为命令（例如 dw 和 cw）的单词分隔符。
有没有办法添加下划线_？
我经常想更改包含下划线的变量名的一部分，例如将 src_branch 更改为 dest_branch。 我最终计算字符并使用 s （如 3sdest），但使用 cw （如 cwdest< /代码>）。
vi treats dash - and space as word separators for commands such as dw and cw.
Is there a way to add underscore _ as well?
I quite often want to change part of a variable name containing underscores, such as changing src_branch to dest_branch. I end up counting characters and using s (like 3sdest), but it would be much easier to use cw (like cwdest).
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什么是或不是关键字的成员字符取决于语言。 有关 iskeyword 的帮助，请使用
:help iskeyword。What is, and is not a member character to keywords depends on the language. For help on iskeyword use
:help iskeyword.如果您使用的是 vim，则可以通过设置
iskeyword选项 (:he iskeyword) 来更改它。 如果这不是一个选项，您始终可以使用ct_而不是计数。In case you're using vim, you can change that by setting the
iskeywordoption (:he iskeyword). If that is not an option, you can always usect_instead of counting.在这种情况下，另一个不错的选择是使用 camelcasemotion 插件。
它添加了新的动作
,b、,e和,w，其工作方式与b、类似>e和w，只不过它们识别 CamelCase 和 Snake_case 单词。 有了它，您就可以使用它，如果您的光标位于“src_branch”的第一个字符上，这会将“src_branch”替换为“dest_branch”。
One other good option in such cases is to use camelcasemotion plugin.
It adds new motions
,b,,e, and,w, which work analogously withb,e, andw, except that they recognize CamelCase and snake_case words. With it you can useand this will replace "src_branch" with "dest_branch" if your cursor was on first character of "src_branch".
您可以输入 cf_dest_ 并保存计数部分。
编辑：或按照建议：
ct_更改文本直到下划线字符之前。 （我更多地使用f动作，所以它对我来说更自然）或者你可以重新定义
'iskeyword'(:help iskeyword了解详情）。You could type
cf_dest_and save the counting part.Edit: or as suggested:
ct_changes text until right before the underline character. (I'm using thefmotion more, so it came more naturally to me)Or you could redefine
'iskeyword'(:help iskeywordfor details).我只是自己看一下并将其添加到我的 .vimrc 中：
我的 .vimrc 有 ^| 问题 和 ^"，这是我设置的默认 iskeyword 的一部分，所以我更改为它们的 ascii 值并且工作正常。我的主要修改是在默认设置的末尾添加“^_”以防止 vim 看到下划线作为单词的一部分。
I was just looking at this myself and added this to my .vimrc:
My .vimrc had issues with ^| and ^", which was part of the default iskeyword for my setup, so I changed to their ascii values and it works fine. My main modification was to add "^_" to the end of the default setting to keep vim from seeing underscore as being part of a word.
要删除到下一个下划线，请输入“df_”
要更改为下一个下划线，请输入“cf_”
注意：不要包含双引号。
To delete to the next underscore enter "df_"
To change to the next underscore enter "cf_"
NOTE: don't include the double quotes.