How to use kotlin.ctags

[wuseal]

Hello, After putting the content in kotlin.ctags into ~/.ctags file. I run this command:
ctags --list-languages
It doesn't contains Kotlin.

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I am using Universal-ctags.

Hi, Bro, I need your help 😢

[daveyarwood]

My file is located at ~/.ctags.d/kotlin.ctags. Give that a try and see if it fixes the issue.

[wuseal]

@daveyarwood Hi, Thanks for you reply.
After putting the content in ~/.ctags.d/kotlin.ctags as you said, It seems do work, but there is an error throw out when I run
ctags --list-languages

ctags: Non-alphanumeric char is used in kind name: 'data classes' in "--regex-kotlin" option

May something not compatible with current Universal-ctags?

[wuseal]

Hi, I follow the solution here:https://gist.github.com/kittinunf/25484de6294a0c4263c86dda3aa1580c#gistcomment-3171742

Because you can't have spaces in Kind names. Replacing line 6 with the line below fixes the problem.
--regex-kotlin=/^[[:space:]]*((abstract|final|sealed|implicit|lazy|open)[[:space:]]*)*(private[^ ]*|protected)?[[:space:]]*((abstract|final|sealed|implicit|lazy)[[:space:]]*)*data[[:space:]]+class[[:space:]]+([[:alnum:]_:]+)/\6/d,dataclasses/

It works for me.
Thank you for your help, best wishes to you 😄

[wuseal]

It seems do not work with TagbarToggle

No file tags could be found 😢

[daveyarwood]

Are you generating the ctags? You can do it manually with ctags -R followed by the directory that your source code is in. For example, ctags -R . or ctags -R src

Having to do this manually every time your source code changes would be really annoying, so there are Vim plugins to automate it. I use https://github.com/ludovicchabant/vim-gutentags and it works well.

[masatake]

You will be interested in universal-ctags/ctags#2769.

[daveyarwood]

Nice! Looks like I might be able to simplify my setup once that is released.

[daveyarwood]

I've since deleted my Kotlin ctags config, as there now seems to be good built-in support for Kotlin (possibly related to the commit linked above).