Fix breaks at end of paragraphs

Previously this behavior was solved on hast.
Now, it is solved on hast, which works just as well, and better.

Closes remarkjs/remark-rehype#27.

Author: wooorm

lib/all.js

@@ -18,30 +18,8 @@ export function all(h, parent) {
   /** @type {Array<MdastNode>} */
   const values = []
   let index = -1
-  let length = nodes.length
-  let child = nodes[index + 1]
-
-  // Trim initial and final `<br>`s.
-  // They’re not semantic per HTML, and they can’t be made in markdown things
-  // like paragraphs or headings.
-  while (child && child.type === 'element' && child.tagName === 'br') {
-    index++
-    child = nodes[index + 1]
-  }
-
-  child = nodes[length - 1]
 
-  while (
-    length - 1 > index &&
-    child &&
-    child.type === 'element' &&
-    child.tagName === 'br'
-  ) {
-    length--
-    child = nodes[length - 1]
-  }
-
-  while (++index < length) {
+  while (++index < nodes.length) {
     // @ts-expect-error assume `parent` is a parent.
     const result = one(h, nodes[index], parent)
 
@@ -52,5 +30,18 @@ export function all(h, parent) {
     }
   }
 
-  return values
+  let start = 0
+  let end = values.length
+
+  while (start < end && values[start].type === 'break') {
+    start++
+  }
+
+  while (end > start && values[end - 1].type === 'break') {
+    end--
+  }
+
+  return start === 0 && end === values.length
+    ? values
+    : values.slice(start, end)
 }

test/fixtures/br/index.html

@@ -9,3 +9,4 @@
 <p><br><br>juliett<br><br></p>
 <h1><br>kilo</h1>
 <h1>lima<br></h1>
+<p>mike</p>november<br><p></p>

test/fixtures/br/index.md

@@ -19,3 +19,7 @@ juliett
 # kilo
 
 # lima
+
+mike
+
+november