planning

node_modules/mdast-util-to-hast/lib/one.js

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+'use strict'
+
+module.exports = one
+
+var u = require('unist-builder')
+var all = require('./all')
+
+var own = {}.hasOwnProperty
+
+// Transform an unknown node.
+function unknown(h, node) {
+  if (text(node)) {
+    return h.augment(node, u('text', node.value))
+  }
+
+  return h(node, 'div', all(h, node))
+}
+
+// Visit a node.
+function one(h, node, parent) {
+  var type = node && node.type
+  var fn = own.call(h.handlers, type) ? h.handlers[type] : null
+
+  // Fail on non-nodes.
+  if (!type) {
+    throw new Error('Expected node, got `' + node + '`')
+  }
+
+  return (typeof fn === 'function' ? fn : unknown)(h, node, parent)
+}
+
+// Check if the node should be renderered a text node.
+function text(node) {
+  var data = node.data || {}
+
+  if (
+    own.call(data, 'hName') ||
+    own.call(data, 'hProperties') ||
+    own.call(data, 'hChildren')
+  ) {
+    return false
+  }
+
+  return 'value' in node
+}