| @primary                 | Captures primary elements              |
| @property                | Captures properties                    |
| @punctuation             | Captures punctuation                   |
| @punctuation.bracket     | Captures brackets                      |
| @punctuation.delimiter   | Captures delimiters                    |
| @punctuation.list_marker | Captures list markers                  |
| @punctuation.special     | Captures special punctuation           |
| @string                  | Captures string literals               |
| @string.escape           | Captures escaped characters in strings |
| @string.regex            | Captures regular expressions           |
| @string.special          | Captures special strings               |
| @string.special.symbol   | Captures special symbols               |
| @tag                     | Captures tags                          |
| @tag.doctype             | Captures doctypes (e.g., in HTML)      |
| @text.literal            | Captures literal text                  |
| @title                   | Captures titles                        |
| @type                    | Captures types                         |
| @variable                | Captures variables                     |
| @variable.special        | Captures special variables             |
| @variant                 | Captures variants                      |

### Bracket matching

The `brackets.scm` file defines matching brackets.

Here's an example from a `brackets.scm` file for JSON:

```scheme
("[" @open "]" @close)
("{" @open "}" @close)
("\"" @open "\"" @close)
```

This query identifies opening and closing brackets, braces, and quotation marks.

| Capture | Description                                   |
| ------- | --------------------------------------------- |
| @open   | Captures opening brackets, braces, and quotes |
| @close  | Captures closing brackets, braces, and quotes |

### Code outline/structure

The `outline.scm` file defines the structure for the code outline.

Here's an example from an `outline.scm` file for JSON:

```scheme
(pair
  key: (string (string_content) @name)) @item
```

This query captures object keys for the outline structure.

| Capture        | Description                                                                          |
| -------------- | ------------------------------------------------------------------------------------ |
| @name          | Captures the content of object keys                                                  |
| @item          | Captures the entire key-value pair                                                   |
| @context       | Captures elements that provide context for the outline item                          |
| @context.extra | Captures additional contextual information for the outline item                      |
| @annotation    | Captures nodes that annotate outline item (doc comments, attributes, decorators)[^1] |


### Auto-indentation

The `indents.scm` file defines indentation rules.

Here's an example from an `indents.scm` file for JSON:

```scheme
(array "]" @end) @indent
(object "}" @end) @indent
```

This query marks the end of arrays and objects for indentation purposes.

| Capture | Description                                        |
| ------- | -------------------------------------------------- |
| @end    | Captures closing brackets and braces               |
| @indent | Captures entire arrays and objects for indentation |

### Code injections

The `injections.scm` file defines rules for embedding one language within another, such as code blocks in Markdown or SQL queries in Python strings.

Here's an example from an `injections.scm` file for Markdown:

```scheme
(fenced_code_block
  (info_string
    (language) @injection.language)
  (code_fence_content) @injection.content)

((inline) @content
 (#set! injection.language "markdown-inline"))
```

This query identifies fenced code blocks, capturing the language specified in the info string and the content within the block. It also captures inline content and sets its language to "markdown-inline".