unified

Project: syntax-tree/unist-util-remove-position

Package: unist-util-remove-position@4.0.1

  1. Dependents: 0
  2. unist utility to remove positions from a tree
  1. util 136
  2. utility 132
  3. unist 128
  4. unist-util 25
  5. remove 10
  6. position 9
  7. clean 6
  8. location 4

unist-util-remove-position

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unist utility to remove positional info from a tree.

Contents

What is this?

This is a small utility that helps you remove the position field from nodes in a unist tree.

When should I use this?

Often, positional info is the whole reason, or an important reason, for using ASTs. Sometimes, especially when comparing trees, or when inserting one tree into another, the positional info is at best useless and at worst harmful. In those cases, you can use this utility to remove position fields from a tree.

You might find the utility unist-util-position useful to instead get clean position info from a tree, or unist-util-generated useful to check whether a node is considered to be generated (not in the original input file).

You might also enjoy unist-util-stringify-position when you want to display positional info to users.

Install

This package is ESM only. In Node.js (version 12.20+, 14.14+, 16.0+, 18.0+), install with npm:

npm install unist-util-remove-position

In Deno with esm.sh:

import {removePosition} from "https://esm.sh/unist-util-remove-position@4"

In browsers with esm.sh:

<script type="module">
  import {removePosition} from "https://esm.sh/unist-util-remove-position@4?bundle"
</script>

Use

import {fromMarkdown} from 'mdast-util-from-markdown'
import {removePosition} from 'unist-util-remove-position'

const tree = fromMarkdown('Some _emphasis_, **importance**, and `code`.')

removePosition(tree, true)

console.dir(tree, {depth: null})

Yields:

{
  type: 'root',
  children: [
    {
      type: 'paragraph',
      children: [
        {type: 'text', value: 'Some '},
        {type: 'emphasis', children: [{type: 'text', value: 'emphasis'}]},
        {type: 'text', value: ', '},
        {type: 'strong', children: [{type: 'text', value: 'importance'}]},
        {type: 'text', value: ', and '},
        {type: 'inlineCode', value: 'code'},
        {type: 'text', value: '.'}
      ]
    }
  ]
}

API

This package exports the identifier removePosition. There is no default export.

removePosition(node[, force])

Remove the position field from a tree (Node). If force is given (boolean, default: false), uses delete to remove the field entirely, otherwise it’s set to undefined.

Returns

The given, modified, node (Node).

Types

This package is fully typed with TypeScript. It exports no additional types.

Compatibility

Projects maintained by the unified collective are compatible with all maintained versions of Node.js. As of now, that is Node.js 12.20+, 14.14+, 16.0+, and 18.0+. Our projects sometimes work with older versions, but this is not guaranteed.

Contribute

See contributing.md in syntax-tree/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.

License

MIT © Titus Wormer