Support blocks with unindented content

list items only contain content that is indented to their respective
level. Except when that content is inside a block. To allow for this we have to
ignore the parentStop when parsing a block and just include everything until
the end of that block.
Can't think of any problems with this right now. Let's see if this comes
back to bite me.

org/block.go

@@ -31,24 +31,24 @@ func (d *Document) parseBlock(i int, parentStop stopFn) (int, Node) {
 	name, parameters := t.content, strings.Fields(t.matches[3])
 	trim := trimIndentUpTo(d.tokens[i].lvl)
 	stop := func(d *Document, i int) bool {
-		return parentStop(d, i) || (d.tokens[i].kind == "endBlock" && d.tokens[i].content == name)
+		return i >= len(d.tokens) || (d.tokens[i].kind == "endBlock" && d.tokens[i].content == name)
 	}
-	block, consumed, i := Block{name, parameters, nil}, 0, i+1
+	block, i := Block{name, parameters, nil}, i+1
 	if isRawTextBlock(name) {
 		rawText := ""
 		for ; !stop(d, i); i++ {
 			rawText += trim(d.tokens[i].matches[0]) + "\n"
 		}
-		consumed = i - start
 		block.Children = d.parseRawInline(rawText)
 	} else {
-		consumed, block.Children = d.parseMany(i, stop)
-		consumed++ // line with BEGIN
+		consumed, nodes := d.parseMany(i, stop)
+		block.Children = nodes
+		i += consumed
 	}
-	if parentStop(d, i) {
-		return 0, nil
+	if i < len(d.tokens) && d.tokens[i].kind == "endBlock" && d.tokens[i].content == name {
+		return i + 1 - start, block
 	}
-	return consumed + 1, block
+	return 0, nil
 }
 
 func trimIndentUpTo(max int) func(string) string {

org/org.go

@@ -162,8 +162,11 @@ func (w *OrgWriter) writeFootnoteDefinition(f FootnoteDefinition) {
 }
 
 func (w *OrgWriter) writeParagraph(p Paragraph) {
-	w.writeNodes(p.Children...)
-	w.WriteString("\n")
+	content := w.nodesAsString(p.Children...)
+	if len(content) > 0 && content[0] != '\n' {
+		w.WriteString(w.indent)
+	}
+	w.WriteString(content + "\n")
 }
 
 func (w *OrgWriter) writeExample(e Example) {

org/testdata/blocks.html

@@ -86,3 +86,41 @@ paragraphs
 <script>
 console.log("Hello World!")
 </script>
+<ul>
+<li>
+<p>
+list item 1
+blocks can contain unindented lines that would normally end a list item
+</p>
+<pre class="example">
+this line is not indented - if it was outside of a block the list item would end
+</pre>
+<p>
+now we&#39;re outside the block again and the following unindented line will be outside of the list item
+</p>
+</li>
+</ul>
+<p>
+this unindented line is outside of the list item
+</p>
+<ul>
+<li>
+<p>
+list item 2
+</p>
+<div class="highlight">
+<pre>
+#+BEGIN_EXAMPLE
+</pre>
+</div>
+<p>
+#+END_EXAMPLE
+</p>
+<p>
+#+BEGIN_QUOTE
+</p>
+<pre class="example">
+#+END_QUOTE
+</pre>
+</li>
+</ul>

org/testdata/blocks.org

@@ -48,3 +48,21 @@ blocks can contain other elements like
 console.log("Hello World!")
 </script>
 #+END_EXPORT
+
+- list item 1
+  blocks can contain unindented lines that would normally end a list item
+  #+BEGIN_EXAMPLE
+this line is not indented - if it was outside of a block the list item would end
+  #+END_EXAMPLE
+  now we're outside the block again and the following unindented line will be outside of the list item
+this unindented line is outside of the list item
+- list item 2
+  #+BEGIN_SRC
+  #+BEGIN_EXAMPLE
+  #+END_SRC
+  #+END_EXAMPLE
+
+  #+BEGIN_QUOTE
+  #+BEGIN_EXAMPLE
+  #+END_QUOTE
+  #+END_EXAMPLE

org/testdata/blocks.pretty_org

@@ -48,3 +48,21 @@ blocks can contain other elements like
 console.log("Hello World!")
 </script>
 #+END_EXPORT
+
+- list item 1
+  blocks can contain unindented lines that would normally end a list item
+  #+BEGIN_EXAMPLE
+  this line is not indented - if it was outside of a block the list item would end
+  #+END_EXAMPLE
+  now we're outside the block again and the following unindented line will be outside of the list item
+this unindented line is outside of the list item
+- list item 2
+  #+BEGIN_SRC
+  #+BEGIN_EXAMPLE
+  #+END_SRC
+  #+END_EXAMPLE
+
+  #+BEGIN_QUOTE
+  #+BEGIN_EXAMPLE
+  #+END_QUOTE
+  #+END_EXAMPLE