Restructure directory layout: org subpackage

org/keyword.go

@@ -0,0 +1,36 @@
+package org
+
+import (
+	"regexp"
+	"strings"
+)
+
+type Keyword struct {
+	Key   string
+	Value string
+}
+
+type Comment struct{ Content string }
+
+var keywordRegexp = regexp.MustCompile(`^(\s*)#\+([^:]+):\s(.*)`)
+var commentRegexp = regexp.MustCompile(`^(\s*)#(.*)`)
+
+func lexKeywordOrComment(line string) (token, bool) {
+	if m := keywordRegexp.FindStringSubmatch(line); m != nil {
+		return token{"keyword", len(m[1]), m[2], m}, true
+	} else if m := commentRegexp.FindStringSubmatch(line); m != nil {
+		return token{"comment", len(m[1]), m[2], m}, true
+	}
+	return nilToken, false
+}
+
+func (d *Document) parseKeyword(i int, stop stopFn) (int, Node) {
+	t := d.tokens[i]
+	k, v := t.matches[2], t.matches[3]
+	d.BufferSettings[k] = strings.Join([]string{d.BufferSettings[k], v}, "\n")
+	return 1, Keyword{k, v}
+}
+
+func (d *Document) parseComment(i int, stop stopFn) (int, Node) {
+	return 1, Comment{d.tokens[i].content}
+}