unist utility to inspect trees
This is a tiny, but useful, package that pretty prints any unist tree.
This utility pretty prints the tree in a format custom made for unist trees. This is useful for spotting bugs, as well as getting an idea of whats going on in the tree. Both trees and node lists can be printed.
This package is ESM only.
In Node.js (version 18+) with yarn:
yarn add @flex-development/unist-util-inspectSee Git - Protocols | Yarn for details regarding installing from Git.
In Deno with esm.sh:
import { inspect } from 'https://esm.sh/@flex-development/unist-util-inspect'In browsers with esm.sh:
<script type="module">
import { inspect } from 'https://esm.sh/@flex-development/unist-util-inspect'
</script>Suppose we have the file dbl-linear.ts, and the following module, example.ts:
import type * as docast from '@flex-development/docast'
import { fromDocs } from '@flex-development/docast-util-from-docs'
import { inspect } from '@flex-development/unist-util-inspect'
import { read } from 'to-vfile'
import type { VFile } from 'vfile'
const file: VFile = await read('dbl-linear.ts')
const tree: docast.Root = fromDocs(file)
console.log(inspect(tree))...running node --loader=./loader.mjs example.ts yields:
root[7]
├─0 comment[3] (1:1-5:4, 0-106)
│ ├─0 blockTag<@file>[1] (2:4-2:19, 7-22)
│ │ └─0 text "dblLinear" (2:10-2:19, 13-22)
│ ├─1 blockTag<@module>[1] (3:4-3:21, 26-43)
│ │ └─0 text "dblLinear" (3:12-3:21, 34-43)
│ └─2 blockTag<@see>[1] (4:4-4:59, 47-102)
│ └─0 text "https://codewars.com/kata/5672682212c8ecf83e000050" (4:9-4:59, 52-102)
├─1 comment[7] (7:1-27:4, 108-684)
│ ├─0 description[7] (8:4-14:68, 115-416)
│ │ ├─0 paragraph[5] (8:4-8:60, 115-171)
│ │ │ ├─0 text "Consider a sequence " (8:4-8:24, 115-135)
│ │ │ ├─1 inlineCode "u" (8:24-8:27, 135-138)
│ │ │ ├─2 text " where " (8:27-8:34, 138-145)
│ │ │ ├─3 inlineCode "u" (8:34-8:37, 145-148)
│ │ │ └─4 text " is defined as follows:" (8:37-8:60, 148-171)
│ │ ├─1 break (8:60-9:1, 171-172)
│ │ ├─2 break (9:3-10:1, 174-175)
│ │ │ data: {"blank":true}
│ │ ├─3 list[3] (1:1-1:1)
│ │ │ │ ordered: true
│ │ │ │ start: 1
│ │ │ │ spread: false
│ │ │ ├─0 listItem[4] (10:5-10:53, 179-227)
│ │ │ │ │ spread: false
│ │ │ │ │ checked: null
│ │ │ │ ├─0 text "The number " (10:8-10:19, 182-193)
│ │ │ │ ├─1 inlineCode "u(0) = 1" (10:19-10:29, 193-203)
│ │ │ │ ├─2 text " is the first one in " (10:29-10:50, 203-224)
│ │ │ │ └─3 inlineCode "u" (10:50-10:53, 224-227)
│ │ │ ├─1 listItem[11] (11:5-11:77, 232-304)
│ │ │ │ │ spread: false
│ │ │ │ │ checked: null
│ │ │ │ ├─0 text "For each " (11:8-11:17, 235-244)
│ │ │ │ ├─1 inlineCode "x" (11:17-11:20, 244-247)
│ │ │ │ ├─2 text " in " (11:20-11:24, 247-251)
│ │ │ │ ├─3 inlineCode "u" (11:24-11:27, 251-254)
│ │ │ │ ├─4 text ", " (11:27-11:29, 254-256)
│ │ │ │ ├─5 inlineCode "y = 2x + 1" (11:29-11:41, 256-268)
│ │ │ │ ├─6 text " and " (11:41-11:46, 268-273)
│ │ │ │ ├─7 inlineCode "z = 3x + 1" (11:46-11:58, 273-285)
│ │ │ │ ├─8 text " must be in " (11:58-11:70, 285-297)
│ │ │ │ ├─9 inlineCode "u" (11:70-11:73, 297-300)
│ │ │ │ └─10 text " too" (11:73-11:77, 300-304)
│ │ │ └─2 listItem[2] (12:5-12:41, 309-345)
│ │ │ │ spread: false
│ │ │ │ checked: null
│ │ │ ├─0 text "There are no other numbers in " (12:8-12:38, 312-342)
│ │ │ └─1 inlineCode "u" (12:38-12:41, 342-345)
│ │ ├─4 break (12:41-13:1, 345-346)
│ │ ├─5 break (13:3-14:1, 348-349)
│ │ │ data: {"blank":true}
│ │ └─6 paragraph[5] (14:4-14:68, 352-416)
│ │ ├─0 text "Given an index, " (14:4-14:20, 352-368)
│ │ ├─1 inlineCode "n" (14:20-14:23, 368-371)
│ │ ├─2 text ", the function returns the element at " (14:23-14:61, 371-409)
│ │ ├─3 inlineCode "u(n)" (14:61-14:67, 409-415)
│ │ └─4 text "." (14:67-14:68, 415-416)
│ ├─1 blockTag<@example>[1] (16:4-17:28, 423-459)
│ │ └─0 code "await dblLinear(0) // 1" (17:5-17:28, 436-459)
│ │ lang: null
│ │ meta: null
│ ├─2 blockTag<@example>[1] (18:4-19:30, 463-501)
│ │ └─0 code "await dblLinear(10) // 22" (19:5-19:30, 476-501)
│ │ lang: null
│ │ meta: null
│ ├─3 blockTag<@example>[1] (20:4-21:32, 505-545)
│ │ └─0 code "await dblLinear(100) // 447" (21:5-21:32, 518-545)
│ │ lang: null
│ │ meta: null
│ ├─4 blockTag<@example>[1] (22:4-23:36, 549-593)
│ │ └─0 code "await dblLinear(7687) // 111718" (23:5-23:36, 562-593)
│ │ lang: null
│ │ meta: null
│ ├─5 blockTag<@param>[2] (25:4-25:46, 600-642)
│ │ ├─0 typeExpression "number" (25:11-25:19, 607-615)
│ │ └─1 text "n - Sequence element index" (25:20-25:46, 616-642)
│ └─6 blockTag<@return>[3] (26:4-26:38, 646-680)
│ ├─0 typeExpression "number" (26:12-26:20, 654-662)
│ ├─1 text "Element at " (26:21-26:32, 663-674)
│ └─2 inlineCode "u(n)" (26:32-26:38, 674-680)
├─2 comment[2] (29:3-33:6, 727-781)
│ ├─0 description[1] (30:6-30:15, 736-745)
│ │ └─0 paragraph[1] (30:6-30:15, 736-745)
│ │ └─0 text "Sequence." (30:6-30:15, 736-745)
│ └─1 blockTag<@const>[2] (32:6-33:1, 756-776)
│ ├─0 typeExpression "number[]" (32:13-32:23, 763-773)
│ └─1 text "u" (32:24-32:25, 774-775)
├─3 comment[2] (36:3-40:6, 811-900)
│ ├─0 description[1] (37:6-37:54, 820-868)
│ │ └─0 paragraph[3] (37:6-37:54, 820-868)
│ │ ├─0 text "Index of x in " (37:6-37:20, 820-834)
│ │ ├─1 inlineTag<@linkcode> "u" (37:20-37:33, 834-847)
│ │ └─2 text " used to calculate y." (37:33-37:54, 847-868)
│ └─1 blockTag<@var>[2] (39:6-40:1, 879-895)
│ ├─0 typeExpression "number" (39:11-39:19, 884-892)
│ └─1 text "j" (39:20-39:21, 893-894)
├─4 comment[2] (43:3-47:6, 924-1013)
│ ├─0 description[1] (44:6-44:54, 933-981)
│ │ └─0 paragraph[3] (44:6-44:54, 933-981)
│ │ ├─0 text "Index of x in " (44:6-44:20, 933-947)
│ │ ├─1 inlineTag<@linkcode> "u" (44:20-44:33, 947-960)
│ │ └─2 text " used to calculate z." (44:33-44:54, 960-981)
│ └─1 blockTag<@var>[2] (46:6-47:1, 992-1008)
│ ├─0 typeExpression "number" (46:11-46:19, 997-1005)
│ └─1 text "j" (46:20-46:21, 1006-1007)
├─5 comment[2] (52:5-56:8, 1118-1173)
│ ├─0 description[1] (53:8-53:12, 1129-1133)
│ │ └─0 paragraph[2] (53:8-53:12, 1129-1133)
│ │ ├─0 inlineCode "y" (53:8-53:11, 1129-1132)
│ │ └─1 text "." (53:11-53:12, 1132-1133)
│ └─1 blockTag<@const>[2] (55:8-56:1, 1148-1166)
│ ├─0 typeExpression "number" (55:15-55:23, 1155-1163)
│ └─1 text "y" (55:24-55:25, 1164-1165)
└─6 comment[2] (59:5-63:8, 1215-1270)
├─0 description[1] (60:8-60:12, 1226-1230)
│ └─0 paragraph[2] (60:8-60:12, 1226-1230)
│ ├─0 inlineCode "z" (60:8-60:11, 1226-1229)
│ └─1 text "." (60:11-60:12, 1229-1230)
└─1 blockTag<@const>[2] (62:8-63:1, 1245-1263)
├─0 typeExpression "number" (62:15-62:23, 1252-1260)
└─1 text "z" (62:24-62:25, 1261-1262)This package exports the identifiers inspect, inspectColor, and
inspectNoColor.
There is no default export.
Inspect a tree, with color in Node, without color in browsers.
tree(unknown) — tree to inspectoptions(Options|null|undefined) — configuration options
(string) Pretty printed tree.
Inspect a tree, with color.
Otherwise the same as inspect.
Inspect a tree, without color.
Otherwise the same as inspect.
Configuration options (TypeScript type).
positions?(boolean | null | undefined) — include positional information- default:
true
- default:
This package is fully typed with TypeScript.
See CONTRIBUTING.md.
This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.