Use ESM

Author: wooorm

.gitignore

@@ -1,7 +1,5 @@
-.DS_Store
-*.log
-.nyc_output/
 coverage/
 node_modules/
+*.log
+.DS_Store
 yarn.lock
-mdast-util-to-markdown.min.js

.prettierignore

@@ -1,3 +1,2 @@
 coverage/
-*.json
 *.md

index.js

@@ -1 +1 @@
-module.exports = require('./lib/index.js')
+export {toMarkdown} from './lib/index.js'

lib/configure.js

@@ -1,6 +1,4 @@
-module.exports = configure
-
-function configure(base, extension) {
+export function configure(base, extension) {
   var index = -1
   var key
 

lib/handle/blockquote.js

@@ -1,11 +1,9 @@
-module.exports = blockquote
+import {containerFlow} from '../util/container-flow.js'
+import {indentLines} from '../util/indent-lines.js'
 
-var flow = require('../util/container-flow.js')
-var indentLines = require('../util/indent-lines.js')
-
-function blockquote(node, _, context) {
+export function blockquote(node, _, context) {
   var exit = context.enter('blockquote')
-  var value = indentLines(flow(node, context), map)
+  var value = indentLines(containerFlow(node, context), map)
   exit()
   return value
 }

lib/handle/break.js

@@ -1,8 +1,6 @@
-module.exports = hardBreak
+import {patternInScope} from '../util/pattern-in-scope.js'
 
-var patternInScope = require('../util/pattern-in-scope.js')
-
-function hardBreak(node, _, context, safe) {
+export function hardBreak(node, _, context, safe) {
   var index = -1
 
   while (++index < context.unsafe.length) {

lib/handle/code.js

@@ -1,13 +1,11 @@
-module.exports = code
-
-var repeat = require('repeat-string')
-var streak = require('longest-streak')
-var formatCodeAsIndented = require('../util/format-code-as-indented.js')
-var checkFence = require('../util/check-fence.js')
-var indentLines = require('../util/indent-lines.js')
-var safe = require('../util/safe.js')
-
-function code(node, _, context) {
+import repeat from 'repeat-string'
+import {longestStreak} from 'longest-streak'
+import {formatCodeAsIndented} from '../util/format-code-as-indented.js'
+import {checkFence} from '../util/check-fence.js'
+import {indentLines} from '../util/indent-lines.js'
+import {safe} from '../util/safe.js'
+
+export function code(node, _, context) {
   var marker = checkFence(context)
   var raw = node.value || ''
   var suffix = marker === '`' ? 'GraveAccent' : 'Tilde'
@@ -20,7 +18,7 @@ function code(node, _, context) {
     exit = context.enter('codeIndented')
     value = indentLines(raw, map)
   } else {
-    sequence = repeat(marker, Math.max(streak(raw, marker) + 1, 3))
+    sequence = repeat(marker, Math.max(longestStreak(raw, marker) + 1, 3))
     exit = context.enter('codeFenced')
     value = sequence
 

lib/handle/definition.js

@@ -1,10 +1,8 @@
-module.exports = definition
+import {association} from '../util/association.js'
+import {checkQuote} from '../util/check-quote.js'
+import {safe} from '../util/safe.js'
 
-var association = require('../util/association.js')
-var checkQuote = require('../util/check-quote.js')
-var safe = require('../util/safe.js')
-
-function definition(node, _, context) {
+export function definition(node, _, context) {
   var marker = checkQuote(context)
   var suffix = marker === '"' ? 'Quote' : 'Apostrophe'
   var exit = context.enter('definition')

lib/handle/emphasis.js

@@ -1,17 +1,16 @@
-module.exports = emphasis
-emphasis.peek = emphasisPeek
+import {checkEmphasis} from '../util/check-emphasis.js'
+import {containerPhrasing} from '../util/container-phrasing.js'
 
-var checkEmphasis = require('../util/check-emphasis.js')
-var phrasing = require('../util/container-phrasing.js')
+emphasis.peek = emphasisPeek
 
 // To do: there are cases where emphasis cannot “form” depending on the
 // previous or next character of sequences.
 // There’s no way around that though, except for injecting zero-width stuff.
 // Do we need to safeguard against that?
-function emphasis(node, _, context) {
+export function emphasis(node, _, context) {
   var marker = checkEmphasis(context)
   var exit = context.enter('emphasis')
-  var value = phrasing(node, context, {before: marker, after: marker})
+  var value = containerPhrasing(node, context, {before: marker, after: marker})
   exit()
   return marker + value + marker
 }

lib/handle/heading.js

@@ -1,10 +1,8 @@
-module.exports = heading
+import repeat from 'repeat-string'
+import {formatHeadingAsSetext} from '../util/format-heading-as-setext.js'
+import {containerPhrasing} from '../util/container-phrasing.js'
 
-var repeat = require('repeat-string')
-var formatHeadingAsSetext = require('../util/format-heading-as-setext.js')
-var phrasing = require('../util/container-phrasing.js')
-
-function heading(node, _, context) {
+export function heading(node, _, context) {
   var rank = Math.max(Math.min(6, node.depth || 1), 1)
   var exit
   var subexit
@@ -14,7 +12,7 @@ function heading(node, _, context) {
   if (formatHeadingAsSetext(node, context)) {
     exit = context.enter('headingSetext')
     subexit = context.enter('phrasing')
-    value = phrasing(node, context, {before: '\n', after: '\n'})
+    value = containerPhrasing(node, context, {before: '\n', after: '\n'})
     subexit()
     exit()
 
@@ -35,7 +33,7 @@ function heading(node, _, context) {
   sequence = repeat('#', rank)
   exit = context.enter('headingAtx')
   subexit = context.enter('phrasing')
-  value = phrasing(node, context, {before: '# ', after: '\n'})
+  value = containerPhrasing(node, context, {before: '# ', after: '\n'})
   value = value ? sequence + ' ' + value : sequence
   if (context.options.closeAtx) {
     value += ' ' + sequence