all: export meta name for author, description, and keywords

By exporting this meta name, any frontend for this library can use
it to check for key and value.

2 files changed, 10 insertions, 10 deletions

diff --git a/document.go b/document.go
index c4bbd0c..bb51c65 100644
--- a/document.go
+++ b/document.go
@@ -180,13 +180,13 @@ func (doc *Document) ToHTML(out io.Writer) (err error) {
 
 	fmt.Fprint(buf, _htmlBegin)
 
-	var metaValue string = doc.Attributes[metaNameDescription]
+	var metaValue string = doc.Attributes[MetaNameDescription]
 	if len(metaValue) > 0 {
 		fmt.Fprintf(buf, "\n<meta name=\"description\" content=%q>",
 			metaValue)
 	}
 
-	metaValue = doc.Attributes[metaNameKeywords]
+	metaValue = doc.Attributes[MetaNameKeywords]
 	if len(metaValue) > 0 {
 		fmt.Fprintf(buf, "\n<meta name=\"keywords\" content=%q>", metaValue)
 	}
@@ -203,8 +203,7 @@ func (doc *Document) ToHTML(out io.Writer) (err error) {
 		metaAuthors.WriteString(author.FullName())
 	}
 	if metaAuthors.Len() > 0 {
-		fmt.Fprintf(buf, "\n<meta name=%q content=%q>",
-			attrValueAuthor, metaAuthors.String())
+		fmt.Fprintf(buf, "\n<meta name=%q content=%q>", MetaNameAuthor, metaAuthors.String())
 	}
 
 	var title string = doc.Title.String()
@@ -348,7 +347,7 @@ func (doc *Document) unpackRawAuthor() {
 	)
 
 	if len(doc.rawAuthors) == 0 {
-		v = doc.Attributes[metaNameAuthor]
+		v = doc.Attributes[MetaNameAuthor]
 		if len(v) > 0 {
 			doc.rawAuthors = v
 		}
@@ -374,7 +373,7 @@ func (doc *Document) unpackRawAuthor() {
 	}
 
 	var (
-		authorKey     = metaNameAuthor
+		authorKey     = MetaNameAuthor
 		emailKey      = metaNameEmail
 		initialsKey   = metaNameAuthorInitials
 		firstNameKey  = metaNameFirstName
@@ -395,7 +394,7 @@ func (doc *Document) unpackRawAuthor() {
 			doc.Attributes[lastNameKey] = author.LastName
 		}
 
-		authorKey = fmt.Sprintf("%s_%d", metaNameAuthor, x+1)
+		authorKey = fmt.Sprintf("%s_%d", MetaNameAuthor, x+1)
 		emailKey = fmt.Sprintf("%s_%d", metaNameEmail, x+1)
 		initialsKey = fmt.Sprintf("%s_%d", metaNameAuthorInitials, x+1)
 		firstNameKey = fmt.Sprintf("%s_%d", metaNameFirstName, x+1)
diff --git a/parser.go b/parser.go
index f8b658b..54ab11d 100644
--- a/parser.go
+++ b/parser.go
@@ -180,15 +180,16 @@ const (
 
 // List of document metadata.
 const (
-	metaNameAuthor         = attrValueAuthor
+	MetaNameAuthor      = "author"
+	MetaNameDescription = "description"
+	MetaNameKeywords    = "keywords"
+
 	metaNameAuthorInitials = "authorinitials"
-	metaNameDescription    = "description"
 	metaNameDocTitle       = "doctitle"
 	metaNameEmail          = attrValueEmail
 	metaNameFirstName      = "firstname"
 	metaNameIDPrefix       = "idprefix"
 	metaNameIDSeparator    = "idseparator"
-	metaNameKeywords       = "keywords"
 	metaNameLastName       = "lastname"
 	metaNameMiddleName     = "middlename"
 	metaNameNoFooter       = "nofooter"