Misc cleanup: SETUP_FILE -> SETUPFILE, empty example lines, ...

org/example.go

@@ -8,11 +8,11 @@ type Example struct {
 	Children []Node
 }
 
-var exampleLineRegexp = regexp.MustCompile(`^(\s*): (.*)`)
+var exampleLineRegexp = regexp.MustCompile(`^(\s*):(\s(.*)|\s*$)`)
 
 func lexExample(line string) (token, bool) {
 	if m := exampleLineRegexp.FindStringSubmatch(line); m != nil {
-		return token{"example", len(m[1]), m[2], m}, true
+		return token{"example", len(m[1]), m[3], m}, true
 	}
 	return nilToken, false
 }

org/inline.go

@@ -118,13 +118,10 @@ func (d *Document) parseExplicitLineBreak(input string, start int) (int, Node) {
 	if start == 0 || input[start-1] == '\n' || start+1 >= len(input) || input[start+1] != '\\' {
 		return 0, nil
 	}
-	for i := start + 2; ; i++ {
-		if i == len(input)-1 || input[i] == '\n' {
+	for i := start + 2; unicode.IsSpace(rune(input[i])); i++ {
+		if i >= len(input) || input[i] == '\n' {
 			return i + 1 - start, ExplicitLineBreak{}
 		}
-		if !unicode.IsSpace(rune(input[i])) {
-			break
-		}
 	}
 	return 0, nil
 }
@@ -202,7 +199,7 @@ func (d *Document) parseAutoLink(input string, start int) (int, int, Node) {
 
 func (d *Document) parseRegularLink(input string, start int) (int, Node) {
 	input = input[start:]
-	if len(input) < 3 || input[1] != '[' || input[2] == '[' {
+	if len(input) < 3 || input[:2] != "[[" || input[2] == '[' {
 		return 0, nil
 	}
 	end := strings.Index(input, "]]")

org/keyword.go

@@ -52,7 +52,7 @@ func (d *Document) parseComment(i int, stop stopFn) (int, Node) {
 func (d *Document) parseKeyword(i int, stop stopFn) (int, Node) {
 	k := parseKeyword(d.tokens[i])
 	switch k.Key {
-	case "SETUP_FILE":
+	case "SETUPFILE":
 		return d.loadSetupFile(k)
 	case "INCLUDE":
 		return d.newInclude(k)

org/org.go

@@ -191,8 +191,10 @@ func (w *OrgWriter) writeParagraph(p Paragraph) {
 
 func (w *OrgWriter) writeExample(e Example) {
 	for _, n := range e.Children {
-		w.WriteString(w.indent + ":" + " ")
-		w.writeNodes(n)
+		w.WriteString(w.indent + ":")
+		if content := w.nodesAsString(n); content != "" {
+			w.WriteString(" " + content)
+		}
 		w.WriteString("\n")
 	}
 }

org/testdata/blocks.html

@@ -35,6 +35,7 @@ src, example & export blocks treat their content as raw text
 <pre class="example">
 examples like this
 are also supported
+
 note that /inline/ *markup* ignored
 </pre>
 <blockquote>

org/testdata/blocks.org

@@ -29,6 +29,7 @@ src, example & export blocks treat their content as raw text
 
 : examples like this
 : are also supported
+:
 : note that /inline/ *markup* ignored
 
 #+BEGIN_QUOTE

org/testdata/blocks.pretty_org

@@ -29,6 +29,7 @@ src, example & export blocks treat their content as raw text
 
 : examples like this
 : are also supported
+:
 : note that /inline/ *markup* ignored
 
 #+BEGIN_QUOTE

org/testdata/headlines.org

@@ -1,4 +1,4 @@
-#+SETUP_FILE: setup_file_org
+#+SETUPFILE: setup_file_org
 * Simple Headline [1/2]
 - [X] checked
 - [ ] unchecked

org/testdata/headlines.pretty_org

@@ -1,4 +1,4 @@
-#+SETUP_FILE: setup_file_org
+#+SETUPFILE: setup_file_org
 * Simple Headline [1/2]
 - [X] checked
 - [ ] unchecked

org/testdata/misc.html

@@ -43,7 +43,7 @@ src block
 </p>
 <div class="highlight">
 <pre>
-#+SETUP_FILE: setup_file_org
+#+SETUPFILE: setup_file_org
 * Simple Headline [1/2]
 - [X] checked
 - [ ] unchecked