Use ESM

Author: wooorm

Diff for: .gitignore

@@ -1,8 +1,5 @@
 .DS_Store
 *.log
-.nyc_output/
 coverage/
 node_modules/
-hast-util-to-nlcst.js
-hast-util-to-nlcst.min.js
 yarn.lock

Diff for: .prettierignore

@@ -1,6 +1,3 @@
 coverage/
-hast-util-to-nlcst.js
-hast-util-to-nlcst.min.js
 *.html
-*.json
 *.md

Diff for: index.js

@@ -1,23 +1,26 @@
-'use strict'
-
-var embedded = require('hast-util-embedded')
-var convert = require('hast-util-is-element/convert')
-var phrasing = require('hast-util-phrasing')
-var textContent = require('hast-util-to-string')
-var whitespace = require('hast-util-whitespace')
-var toString = require('nlcst-to-string')
-var position = require('unist-util-position')
-var vfileLocation = require('vfile-location')
-
-module.exports = toNlcst
+import {embedded} from 'hast-util-embedded'
+import {convertElement} from 'hast-util-is-element'
+import {phrasing} from 'hast-util-phrasing'
+import toString from 'hast-util-to-string'
+import {whitespace} from 'hast-util-whitespace'
+import {toString as nlcstToString} from 'nlcst-to-string'
+import {pointStart} from 'unist-util-position'
+import vfileLocation from 'vfile-location'
 
 var push = [].push
 
-var source = convert(['code', dataNlcstSourced])
-var ignore = convert(['script', 'style', 'svg', 'math', 'del', dataNlcstIgnore])
-var explicit = convert(['p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'])
+var source = convertElement(['code', dataNlcstSourced])
+var ignore = convertElement([
+  'script',
+  'style',
+  'svg',
+  'math',
+  'del',
+  dataNlcstIgnore
+])
+var explicit = convertElement(['p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'])
 
-var flowAccepting = convert([
+var flowAccepting = convertElement([
   'body',
   'article',
   'section',
@@ -44,10 +47,10 @@ var flowAccepting = convert([
 ])
 
 // See: <https://html.spec.whatwg.org/multipage/dom.html#paragraphs>
-var unravelInParagraph = convert(['a', 'ins', 'del', 'map'])
+var unravelInParagraph = convertElement(['a', 'ins', 'del', 'map'])
 
 // Transform `tree` to nlcst.
-function toNlcst(tree, file, Parser) {
+export function toNlcst(tree, file, Parser) {
   var parser
   var location
   var results
@@ -67,7 +70,7 @@ function toNlcst(tree, file, Parser) {
     throw new Error('hast-util-to-nlcst expected parser')
   }
 
-  if (!position.start(tree).line || !position.start(tree).column) {
+  if (!pointStart(tree).line || !pointStart(tree).column) {
     throw new Error('hast-util-to-nlcst expected position on nodes')
   }
 
@@ -130,7 +133,7 @@ function toNlcst(tree, file, Parser) {
   function add(node) {
     var result = ('length' in node ? all : one)(node)
 
-    if (result.length) {
+    if (result.length > 0) {
       results.push(parser.tokenizeParagraph(result))
     }
   }
@@ -182,15 +185,15 @@ function toNlcst(tree, file, Parser) {
         replacement = [parser.tokenizeWhiteSpace('\n')]
         change = true
       } else if (source(node)) {
-        replacement = [parser.tokenizeSource(textContent(node))]
+        replacement = [parser.tokenizeSource(toString(node))]
         change = true
       } else {
         replacement = all(node.children)
       }
     }
 
     return change
-      ? patch(replacement, location, location.toOffset(position.start(node)))
+      ? patch(replacement, location, location.toOffset(pointStart(node)))
       : replacement
   }
 
@@ -224,7 +227,7 @@ function toNlcst(tree, file, Parser) {
         patch(node.children, location, start)
       }
 
-      end = start + toString(node).length
+      end = start + nlcstToString(node).length
 
       node.position = {
         start: location.toPoint(start),

Diff for: package.json

@@ -26,50 +26,41 @@
   "contributors": [
     "Titus Wormer <[email protected]> (https://wooorm.com)"
   ],
+  "sideEffects": false,
+  "type": "module",
+  "main": "index.js",
   "files": [
     "index.js"
   ],
   "dependencies": {
-    "hast-util-embedded": "^1.0.0",
-    "hast-util-is-element": "^1.0.0",
-    "hast-util-phrasing": "^1.0.0",
+    "hast-util-embedded": "^2.0.0",
+    "hast-util-is-element": "^2.0.0",
+    "hast-util-phrasing": "^2.0.0",
     "hast-util-to-string": "^1.0.0",
-    "hast-util-whitespace": "^1.0.0",
-    "nlcst-to-string": "^2.0.0",
-    "unist-util-position": "^3.0.0",
+    "hast-util-whitespace": "^2.0.0",
+    "nlcst-to-string": "^3.0.0",
+    "unist-util-position": "^4.0.0",
     "vfile-location": "^3.1.0"
   },
   "devDependencies": {
-    "browserify": "^17.0.0",
-    "is-hidden": "^1.0.0",
-    "negate": "^1.0.0",
-    "nyc": "^15.0.0",
-    "parse-dutch": "^4.0.0",
-    "parse-english": "^4.0.0",
-    "parse-latin": "^4.0.0",
+    "c8": "^7.0.0",
+    "is-hidden": "^2.0.0",
+    "parse-dutch": "^5.0.0",
+    "parse-english": "^5.0.0",
+    "parse-latin": "^5.0.0",
     "prettier": "^2.0.0",
     "rehype": "^11.0.0",
     "remark-cli": "^9.0.0",
     "remark-preset-wooorm": "^8.0.0",
     "tape": "^5.0.0",
-    "tinyify": "^3.0.0",
     "vfile": "^4.0.0",
-    "xo": "^0.38.0"
+    "xo": "^0.39.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
-    "build-bundle": "browserify . -s hastUtilToNlcst -o hast-util-to-nlcst.js",
-    "build-mangle": "browserify . -s hastUtilToNlcst -o hast-util-to-nlcst.min.js -p tinyify",
-    "build": "npm run build-bundle && npm run build-mangle",
-    "test-api": "node test",
-    "test-coverage": "nyc --reporter lcov tape test/index.js",
-    "test": "npm run format && npm run build && npm run test-coverage"
-  },
-  "nyc": {
-    "check-coverage": true,
-    "lines": 100,
-    "functions": 100,
-    "branches": 100
+    "test-api": "node test/index.js",
+    "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov node test/index.js",
+    "test": "npm run format && npm run test-coverage"
   },
   "prettier": {
     "tabWidth": 2,
@@ -81,15 +72,10 @@
   },
   "xo": {
     "prettier": true,
-    "esnext": false,
     "rules": {
-      "unicorn/explicit-length-check": "off",
-      "unicorn/no-fn-reference-in-iterator": "off",
-      "unicorn/prefer-optional-catch-binding": "off"
-    },
-    "ignores": [
-      "hast-util-to-nlcst.js"
-    ]
+      "no-var": "off",
+      "prefer-arrow-callback": "off"
+    }
   },
   "remarkConfig": {
     "plugins": [

Diff for: readme.md

@@ -14,6 +14,9 @@
 
 ## Install
 
+This package is [ESM only](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c):
+Node 12+ is needed to use it and it must be `import`ed instead of `require`d.
+
 [npm][]:
 
 ```sh
@@ -35,16 +38,16 @@ Say we have the following `example.html`:
 …and next to it, `index.js`:
 
 ```js
-var rehype = require('rehype')
-var vfile = require('to-vfile')
-var English = require('parse-english')
-var inspect = require('unist-util-inspect')
-var toNlcst = require('hast-util-to-nlcst')
+import rehype from 'rehype'
+import vfile from 'to-vfile'
+import {ParseEnglish} from 'parse-english'
+import {inspect} from 'unist-util-inspect'
+import {toNlcst} from 'hast-util-to-nlcst'
 
 var file = vfile.readSync('example.html')
 var tree = rehype().parse(file)
 
-console.log(inspect(toNlcst(tree, file, English)))
+console.log(inspect(toNlcst(tree, file, ParseEnglish)))
 ```
 
 Which, when running, yields:
@@ -73,6 +76,9 @@ RootNode[2] (1:1-6:1, 0-134)
 
 ## API
 
+This package exports the following identifiers: `toNlcst`.
+There is no default export.
+
 ### `toNlcst(tree, file, Parser)`
 
 Transform the given [**hast**][hast] [*tree*][tree] to [**nlcst**][nlcst].

Diff for: test/index.js

@@ -1,16 +1,13 @@
-'use strict'
-
-var fs = require('fs')
-var path = require('path')
-var test = require('tape')
-var rehype = require('rehype')
-var vfile = require('vfile')
-var Latin = require('parse-latin')
-var Dutch = require('parse-dutch')
-var English = require('parse-english')
-var negate = require('negate')
-var hidden = require('is-hidden')
-var toNlcst = require('..')
+import fs from 'fs'
+import path from 'path'
+import test from 'tape'
+import rehype from 'rehype'
+import vfile from 'vfile'
+import {ParseLatin} from 'parse-latin'
+import {ParseDutch} from 'parse-dutch'
+import {ParseEnglish} from 'parse-english'
+import {isHidden} from 'is-hidden'
+import {toNlcst} from '../index.js'
 
 test('hast-util-to-nlcst', function (t) {
   t.throws(
@@ -63,7 +60,7 @@ test('hast-util-to-nlcst', function (t) {
 
   t.throws(
     function () {
-      toNlcst({type: 'text', value: 'foo'}, vfile(), Latin)
+      toNlcst({type: 'text', value: 'foo'}, vfile(), ParseLatin)
     },
     /hast-util-to-nlcst expected position on nodes/,
     'should fail when not given positional information'
@@ -80,7 +77,7 @@ test('hast-util-to-nlcst', function (t) {
         }
       },
       vfile(),
-      English
+      ParseEnglish
     )
   }, 'should accept a parser constructor')
 
@@ -95,7 +92,7 @@ test('hast-util-to-nlcst', function (t) {
         }
       },
       vfile(),
-      new Dutch()
+      new ParseDutch()
     )
   }, 'should accept a parser instance')
 
@@ -108,7 +105,7 @@ test('hast-util-to-nlcst', function (t) {
           position: {start: {}, end: {}}
         },
         vfile(),
-        Latin
+        ParseLatin
       )
     },
     /hast-util-to-nlcst expected position on nodes/,
@@ -126,7 +123,7 @@ test('hast-util-to-nlcst', function (t) {
         }
       },
       vfile('foo'),
-      Latin
+      ParseLatin
     )
 
     st.equal(node.position.start.offset, 0, 'should set starting offset')
@@ -143,7 +140,7 @@ test('hast-util-to-nlcst', function (t) {
         position: {start: {line: 1, column: 1}, end: {line: 1, column: 9}}
       },
       vfile('<!--a-->'),
-      Latin
+      ParseLatin
     )
 
     st.deepEqual(
@@ -166,8 +163,8 @@ test('hast-util-to-nlcst', function (t) {
 })
 
 test('Fixtures', function (t) {
-  var root = path.join(__dirname, 'fixtures')
-  var files = fs.readdirSync(root).filter(negate(hidden))
+  var root = path.join('test', 'fixtures')
+  var files = fs.readdirSync(root)
   var index = -1
   var input
   var output
@@ -176,14 +173,16 @@ test('Fixtures', function (t) {
   var expected
 
   while (++index < files.length) {
+    if (isHidden(files[index])) continue
+
     input = path.join(root, files[index], 'input.html')
     output = path.join(root, files[index], 'output.json')
     file = vfile(fs.readFileSync(input))
-    actual = toNlcst(rehype().parse(file), file, Latin)
+    actual = toNlcst(rehype().parse(file), file, ParseLatin)
 
     try {
       expected = JSON.parse(fs.readFileSync(output))
-    } catch (_) {
+    } catch {
       fs.writeFileSync(output, JSON.stringify(actual, null, 2) + '\n')
       return
     }