nvim-treesitter/doc/nvim-treesitter.txt

*nvim-treesitter.txt*         Treesitter parser and query installer for Neovim

Authors:
  Kiyan Yazdani <yazdani.kiyan@protonmail.com>
  Thomas Vigouroux <tomvig38@gmail.com>
  Stephan Seitz <stephan.seitz@fau.de>
  Steven Sojka <Steven.Sojka@tdameritrade.com>
  Santos Gallegos <stsewd@protonmail.com>
  https://github.com/nvim-treesitter/nvim-treesitter/graphs/contributors

                                       Type |gO| to see the table of contents.

==============================================================================
INTRODUCTION                                           *nvim-treesitter-intro*

Nvim-treesitter provides functionalities for managing treesitter parsers and
compatible queries for core features (highlighting, injections, fold, indent).

WARNING: This is work in progress and requires the latest commit on Neovim
`master`.

==============================================================================
QUICK START                                       *nvim-treesitter-quickstart*

Install the parser for your language

>vim
  :TSInstall {language}
<

To get a list of supported languages

>vim
  :TSInstall <tab>
<

To install supported parsers and queries, put this in your `init.lua` file:

>lua
  require'nvim-treesitter.config'.setup {
    -- A directory to install the parsers and queries to.
    -- Defaults to the `stdpath('data')/site` dir.
    install_dir = "/some/path/to/store/parsers",

    -- A list of parser names, or "stable", "unstable", "unmaintained", "unsupported"
    ensure_install = { "stable", "rust" },

    -- List of parsers to ignore installing (for "stable" etc.)
    ignore_install = { "javascript" },
  }

<
To check installed parsers and queries, use `:checkhealth nvim-treesitter`.

==============================================================================
COMMANDS                                            *nvim-treesitter-commands*

								  *:TSInstall*
:TSInstall {language} ... ~

Install one or more treesitter parsers.
You can use |:TSInstall| `all` to install all parsers. Use |:TSInstall!| to
force the reinstallation of already installed parsers.

								   *:TSUpdate*
:TSUpdate {language} ... ~

Update the installed parser for one more {language} or all installed parsers
if {language} is omitted. The specified parser is installed if it is not already
installed.

								*:TSUninstall*
:TSUninstall {language} ... ~

Deletes the parser for one or more {language}. You can use 'all' for language
to uninstall all parsers.

==============================================================================
INDENTATION                                        *nvim-treesitter-indentation*

Indentation based on treesitter for the |=| operator.
NOTE: this is an experimental feature and will be upstreamed to Neovim when
stable.

To enable it for a supported parser, add the following to a corresponding
`FileType` autocommand or `ftplugin/<lang>.lua`:  >lua

  vim.bo.indentexpr = 'v.lua:require'nvim-treesitter'.indentexpr()'

<

Indentation for a language is controlled by `indents.scm` queries. The
following captures are supported:


`@indent`				    *nvim-treesitter-indentation-queries*
Queries can use the following captures: `@indent.begin` and `@indent.dedent`,
`@indent.branch`, `@indent.end` or `@indent.align`. An `@indent.ignore` capture tells
treesitter to ignore indentation and a `@indent.zero` capture sets
the indentation to 0.

`@indent.begin`			    *nvim-treesitter-indentation-indent.begin*
The `@indent.begin` specifies that the next line should be indented.  Multiple
indents on the same line get collapsed. Eg.

>query
  (
   (if_statement)
   (ERROR "else") @indent.begin
  )
<
Indent can also have `indent.immediate` set using a `#set!` directive, which
permits the next line to indent even when the block intended to be indented
has no content yet, improving interactive typing.

eg for python:
>query
 ((if_statement) @indent.begin
   (#set! indent.immediate 1))
<

Will allow:
>python
  if True:<CR>
      # Auto indent to here

`@indent.end`				*nvim-treesitter-indentation-indent.end*
An `@indent.end` capture is used to specify that the indented region ends and
any text subsequent to the capture should be dedented.  

`@indent.branch`		    *nvim-treesitter-indentation-indent.branch*
An `@indent.branch` capture is used to specify that a dedented region starts
at the line including the captured nodes.

`@indent.dedent`		    *nvim-treesitter-indentation-indent.dedent*
A `@indent.dedent` capture specifies dedenting starting on the next line.
>
`@indent.align`		    *nvim-treesitter-indentation-aligned_indent.align*
Aligned indent blocks may be specified with the `@indent.align` capture.
This permits

>
  foo(a,
      b,
      c)
<
As well as
>
  foo(
    a,
    b,
    c)
<
and finally
>
  foo(
    a,
    b,
    c
  )
<
To specify the delimiters to use `indent.open_delimiter` and
`indent.close_delimiter` should be used.  Eg.
>query
 ((argument_list) @indent.align
  (#set! indent.open_delimiter "(")
  (#set! indent.close_delimiter ")"))
<

For some languages the last line of an `indent.align` block must not be
the same indent as the natural next line.

For example in python:

>python
  if (a > b and
      c < d):
      pass

Is not correct, whereas
>python
  if (a > b and
	c < d):
      pass

Would be correctly indented.  This behavior may be chosen using
`indent.avoid_last_matching_next`.  Eg.

>query
 (if_statement
  condition: (parenthesized_expression) @indent.align
  (#set! indent.open_delimiter "(")
  (#set! indent.close_delimiter ")")
  (#set! indent.avoid_last_matching_next 1)
 )
<
Could be used to specify that the last line of an `@indent.align` capture
should be additionally indented to avoid clashing with the indent of the first
line of the block inside an if.

vim:tw=78:ts=8:expandtab:noet:ft=help:norl: