unist-util-lsp
v2.1.0
Published
Utility to convert between unist and language server protocol
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unist-util-lsp
unist utility to convert positional info between unist and language server protocol
Contents
What is this?
This package is a utility that converts positional info between unist and language server protocol.
When should I use this?
You can use this package when you are dealing with both unist ASTs and a language server.
Install
This package is ESM only. In Node.js (version 16+), install with npm:
npm install unist-util-lsp
In Deno with esm.sh
:
import {fromPoint, fromPosition, toPoint, toPosition} from 'https://esm.sh/unist-util-lsp@2'
In browsers with esm.sh
:
<script type="module">
import {fromPoint, fromPosition, toPoint, toPosition} from 'https://esm.sh/unist-util-lsp@2?bundle'
</script>
Use
Say we have the following example.md
:
## Hello **World**!
…and next to it a module example.js
:
import fs from 'node:fs/promises'
import {fromMarkdown} from 'mdast-util-from-markdown'
import {
fromPlace,
fromPoint,
fromPosition,
toPoint,
toPosition
} from 'unist-util-lsp'
const markdown = String(await fs.readFile('example.md'))
const mdast = fromMarkdown(markdown)
console.log(mdast.position)
const range = fromPosition(mdast.position)
console.log(range)
const position = toPosition(range)
console.log(position)
const startPosition = fromPoint(mdast.position.start)
console.log(startPosition)
const startPoint = toPoint(startPosition)
console.log(startPoint)
const fullRange = fromPlace(mdast.position)
console.log(fullRange)
const startRange = fromPlace(mdast.position.start)
console.log(startRange)
…now running node example.js
yields:
{
start: { line: 1, column: 1, offset: 0 },
end: { line: 2, column: 1, offset: 20 }
}
{ start: { character: 0, line: 0 }, end: { character: 0, line: 1 } }
{ start: { column: 1, line: 1 }, end: { column: 1, line: 2 } }
{ character: 0, line: 0 }
{ column: 1, line: 1 }
{ start: { character: 0, line: 0 }, end: { character: 0, line: 1 } }
{ start: { character: 0, line: 0 }, end: { character: 0, line: 0 } }
API
This package exports the identifiers fromPlace
,
fromPoint
, fromPosition
,
toPoint
, and toPosition
.
There is no default export.
fromPlace(place)
Convert a unist point or position to an LSP range.
Parameters
place
(UnistPoint |UnistPosition
) — the unist point or position to convert
Returns
The LSP range (Range
).
fromPoint(point)
Turn a unist point into an LSP position.
Parameters
point
(Point
) — the unist point to convert
Returns
The LSP position (LspPosition
).
fromPosition(unistPosition)
Convert a unist position to an LSP range.
Parameters
unistPosition
(UnistPosition
) — the unist position to convert
Returns
The LSP range (Range
).
toPoint(lspPosition)
Convert a language server protocol position to a unist point.
Parameters
lspPosition
(LspPosition
) — the LSP position to convert
Returns
The unist point (Point
).
toPosition(range)
Convert an LSP range to a unist position.
Parameters
range
(Range
) — the LSP range to convert
Returns
The range converted to a unist position (UnistPosition
).
Types
This package is fully typed with TypeScript. It exports no additional types.
Compatibility
Projects maintained by the unified collective are compatible with maintained versions of Node.js.
When we cut a new major release, we drop support for unmaintained versions of
Node.
This means we try to keep the current release line, unist-util-lsp@^2
,
compatible with Node.js 16.
Security
This package is safe.
Related
unist
— specification for abstract syntax trees- Language server protocol — protocol to communicate between editors and language servers
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.