Add support for implicit paragraphs

Closes GH-27.

Author: wooorm

handlers/blockquote.js

@@ -3,7 +3,8 @@
 module.exports = blockquote;
 
 var all = require('../all');
+var wrap = require('../wrap');
 
 function blockquote(h, node) {
-  return h(node, 'blockquote', all(h, node));
+  return h(node, 'blockquote', wrap(all(h, node)));
 }

handlers/list-item.js

@@ -4,6 +4,7 @@ module.exports = listItem;
 
 var is = require('hast-util-is-element');
 var all = require('../all');
+var wrap = require('../wrap');
 
 function listItem(h, node) {
   var children = node.children;
@@ -26,7 +27,7 @@ function listItem(h, node) {
     }
   }
 
-  content = all(h, node);
+  content = wrap(all(h, node));
 
   /* Remove initial spacing if we previously found a checkbox. */
   if (checked !== null) {
@@ -49,11 +50,7 @@ function listItem(h, node) {
   } else if (content.length === 1) {
     head = content[0];
 
-    if (head.type === 'text') {
-      /* Wrap `text` in `paragraph` (always tight). */
-      content = [{type: 'paragraph', children: content}];
-      loose = false;
-    } else if (head.type === 'paragraph') {
+    if (head.type === 'paragraph') {
       /* One `paragraph`, always tight. Ensure it isn’t empty. */
       loose = false;
 

handlers/root.js

@@ -3,7 +3,8 @@
 module.exports = root;
 
 var all = require('../all');
+var wrap = require('../wrap');
 
 function root(h, node) {
-  return h(node, 'root', all(h, node));
+  return h(node, 'root', wrap.optional(all(h, node)));
 }

package.json

@@ -15,7 +15,8 @@
     "handlers",
     "index.js",
     "one.js",
-    "all.js"
+    "all.js",
+    "wrap.js"
   ],
   "repository": "https://github.com/syntax-tree/hast-util-to-mdast",
   "bugs": "https://github.com/syntax-tree/hast-util-to-mdast/issues",
@@ -31,6 +32,7 @@
     "hast-util-is-element": "^1.0.0",
     "hast-util-to-string": "^1.0.0",
     "rehype-minify-whitespace": "^2.0.0",
+    "unist-util-is": "^2.1.0",
     "unist-util-visit": "^1.1.1",
     "xtend": "^4.0.1"
   },

tests/fixtures/gh-27/index.html

@@ -0,0 +1,5 @@
+<ol>
+<li><code>something</code> Hello World? And now <code>channel</code>.</li>
+</ol>
+
+A <code>for</code> loop… ye?

tests/fixtures/gh-27/index.json

@@ -0,0 +1,3 @@
+{
+  "fragment": true
+}

tests/fixtures/gh-27/index.md

@@ -0,0 +1,3 @@
+1.  `something` Hello World? And now `channel`.
+
+A `for` loop… ye?

tests/fixtures/implicit-paragraphs/index.html

@@ -0,0 +1,13 @@
+<article>
+  An <strong>implicit</strong> paragraph.
+  <h1>An <em>explicit</em> paragraph</h1>
+</article>
+
+<ol>
+<li><em>Emphasis</em> and <strong>importance</strong>.</li>
+</ol>
+
+<blockquote>
+  <h1>Heading</h1>
+  Another <em>implicit</em> paragraph.
+</blockquote>

tests/fixtures/implicit-paragraphs/index.json

@@ -0,0 +1,3 @@
+{
+  "fragment": true
+}

tests/fixtures/implicit-paragraphs/index.md

@@ -0,0 +1,9 @@
+An **implicit** paragraph.
+
+# An _explicit_ paragraph
+
+1.  _Emphasis_ and **importance**.
+
+> # Heading
+>
+> Another _implicit_ paragraph.