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unist-util-stringify-position
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Package description
The `unist-util-stringify-position` package is a utility for converting Unist node positions to a string format. Unist nodes are part of the Unified ecosystem, which is used for processing content with abstract syntax trees (ASTs). This package helps in serializing the position of nodes (such as where they start and end in the source document) into a human-readable string format, which can be useful for debugging, logging, or displaying position information in user interfaces.
Stringify a single position
This feature allows you to convert a single position object, which includes start and end properties with line and column information, into a string. It's useful for representing the location of a node in a source file.
"const stringify = require('unist-util-stringify-position');\nconst position = {start: {line: 1, column: 1}, end: {line: 1, column: 4}};\nconsole.log(stringify(position)); // Outputs '1:1-1:4'"
Stringify a node with position
This feature demonstrates how to stringify the position of an entire Unist node. It's particularly useful when working with ASTs and you need to log or display where a node is located within the original document.
"const stringify = require('unist-util-stringify-position');\nconst node = {type: 'text', value: 'example', position: {start: {line: 2, column: 3}, end: {line: 2, column: 10}}};\nconsole.log(stringify(node)); // Outputs '2:3-2:10'"
While `unist-util-visit` does not directly stringify positions, it is a utility for traversing Unist trees and can be used in conjunction with `unist-util-stringify-position` to visit nodes and stringify their positions. It differs in its primary purpose, focusing on tree traversal rather than position serialization.
This hypothetical package (note: `unist-util-locate` does not actually exist) would presumably offer functionality to locate nodes within a Unist tree, potentially providing similar position information. However, without direct stringification capabilities, it would serve a complementary rather than overlapping role with `unist-util-stringify-position`.
Readme
unist utility to pretty print the positional information of a node.
This package is a utility that takes any unist (whether mdast, hast, etc) node, position, or point, and serializes its positional info.
This utility is useful to display where something occurred in the original document, in one standard way, for humans. For example, when throwing errors or warning messages about something.
This package is ESM only. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:
npm install unist-util-stringify-position
In Deno with esm.sh
:
import {stringifyPosition} from 'https://esm.sh/unist-util-stringify-position@3'
In browsers with esm.sh
:
<script type="module">
import {stringifyPosition} from 'https://esm.sh/unist-util-stringify-position@3?bundle'
</script>
import {stringifyPosition} from 'unist-util-stringify-position'
stringifyPosition({line: 2, column: 3}) // => '2:3' (point)
stringifyPosition({start: {line: 2}, end: {line: 3}}) // => '2:1-3:1' (position)
stringifyPosition({
type: 'text',
value: '!',
position: {
start: {line: 5, column: 11},
end: {line: 5, column: 12}
}
}) // => '5:11-5:12' (node)
This package exports the identifier stringifyPosition
.
There is no default export.
stringifyPosition(node|position|point)
Stringify a point, position, or a node.
node
(Node
)
— node whose 'position'
property to stringifyposition
(Position
)
— position whose 'start'
and 'end'
points to stringifypoint
(Point
)
— point whose 'line'
and 'column'
to stringifystring?
— 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.
An empty string (''
) is returned if the given value is neither node
,
position
, nor point
.
This package is fully typed with TypeScript. There are no additional types exported.
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+, and 16.0+. Our projects sometimes work with older versions, but this is not guaranteed.
This project is safe.
unist-util-generated
— check if a node is generatedunist-util-position
— get positional info of nodesunist-util-remove-position
— remove positional info from treesunist-util-source
— get the source of a value (node or position) in a fileSee 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.
FAQs
unist utility to serialize a node, position, or point as a human readable location
The npm package unist-util-stringify-position receives a total of 10,107,810 weekly downloads. As such, unist-util-stringify-position popularity was classified as popular.
We found that unist-util-stringify-position demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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