WIP - add extractor, generate snippet_data

node_modules/unist-util-stringify-position/readme.md

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+# unist-util-stringify-position [![Build Status][build-badge]][build-page] [![Coverage Status][coverage-badge]][coverage-page]
+
+Stringify a [**Unist**][unist] [`Position`][position] or [`Point`][point].
+
+## Installation
+
+[npm][]:
+
+```bash
+npm install unist-util-stringify-position
+```
+
+## Usage
+
+```javascript
+var stringify = require('unist-util-stringify-position')
+
+// Point
+stringify({line: 2, column: 3}) // => '2:3'
+
+// Position
+stringify({
+  start: {line: 2},
+  end: {line: 3}
+}) // => '2:1-3:1'
+
+// Node
+stringify({
+  type: 'text',
+  value: '!',
+  position: {
+    start: {line: 5, column: 11},
+    end: {line: 5, column: 12}
+  }
+}) // => '5:11-5:12'
+```
+
+## API
+
+### `stringifyPosition(node|position|point)`
+
+Stringify one point, a position (start and end points), or
+a node’s position.
+
+###### Parameters
+
+*   `node` ([`Node`][node])
+    — Node whose `'position'` property to stringify
+*   `position` ([`Position`][position])
+    — Position whose `'start'` and `'end'` points to stringify
+*   `point` ([`Point`][point])
+    — Point whose `'line'` and `'column'` to stringify
+
+###### Returns
+
+`string?` — A range `ls:cs-le:ce` (when given `node` or
+`position`) or a point `l:c` (when given `point`), where `l` stands
+for line, `c` for column, `s` for `start`, and `e` for
+end.  `null` is returned if the given value is neither `node`,
+`position`, nor `point`.
+
+## Contribute
+
+See [`contributing.md` in `syntax-tree/unist`][contributing] for ways to get
+started.
+
+This organisation has a [Code of Conduct][coc].  By interacting with this
+repository, organisation, or community you agree to abide by its terms.
+
+## License
+
+[MIT][license] © [Titus Wormer][author]
+
+<!-- Definition -->
+
+[build-badge]: https://img.shields.io/travis/syntax-tree/unist-util-stringify-position.svg
+
+[build-page]: https://travis-ci.org/syntax-tree/unist-util-stringify-position
+
+[coverage-badge]: https://img.shields.io/codecov/c/github/syntax-tree/unist-util-stringify-position.svg
+
+[coverage-page]: https://codecov.io/github/syntax-tree/unist-util-stringify-position?branch=master
+
+[npm]: https://docs.npmjs.com/cli/install
+
+[license]: LICENSE
+
+[author]: http://wooorm.com
+
+[unist]: https://github.com/syntax-tree/unist
+
+[node]: https://github.com/syntax-tree/unist#node
+
+[position]: https://github.com/syntax-tree/unist#position
+
+[point]: https://github.com/syntax-tree/unist#point
+
+[contributing]: https://github.com/syntax-tree/unist/blob/master/contributing.md
+
+[coc]: https://github.com/syntax-tree/unist/blob/master/code-of-conduct.md