add api AppendFile

structdoc.go

@@ -284,12 +284,7 @@ newdoclop:
 	return
 }
 
-func (p *Paragraph) copymedia(to *Docx) (np Paragraph) {
+func (r *Run) copymedia(to *Docx) *Run {
-	np = *p
-	np.Children = make([]interface{}, 0, len(p.Children))
-	np.file = to
-	for _, pc := range p.Children {
-		if r, ok := pc.(*Run); ok {
 	nr := *r
 	nr.Children = make([]interface{}, 0, len(r.Children))
 	nr.file = to
@@ -300,7 +295,28 @@ func (p *Paragraph) copymedia(to *Docx) (np Paragraph) {
 		}
 		nr.Children = append(nr.Children, rc)
 	}
-			np.Children = append(np.Children, &nr)
+	return &nr
+}
+
+func (p *Paragraph) copymedia(to *Docx) (np Paragraph) {
+	np = *p
+	np.Children = make([]interface{}, 0, len(p.Children))
+	np.file = to
+	for _, pc := range p.Children {
+		if r, ok := pc.(*Run); ok {
+			np.Children = append(np.Children, r.copymedia(to))
+			continue
+		}
+		if h, ok := pc.(*Hyperlink); ok {
+			tgt, err := p.file.ReferTarget(h.ID)
+			if err != nil {
+				continue
+			}
+			rid := to.addLinkRelation(tgt)
+			np.Children = append(np.Children, &Hyperlink{
+				ID:  rid,
+				Run: *h.Run.copymedia(to),
+			})
 			continue
 		}
 		np.Children = append(np.Children, pc)
@@ -330,3 +346,19 @@ func (t *Table) copymedia(to *Docx) (nt Table) {
 	}
 	return
 }
+
+// AppendFile appends all contents in af to f
+func (f *Docx) AppendFile(af *Docx) {
+	for _, item := range af.Document.Body.Items {
+		switch o := item.(type) {
+		case *Paragraph:
+			np := o.copymedia(f)
+			f.Document.Body.Items = append(f.Document.Body.Items, &np)
+		case *Table:
+			nt := o.copymedia(f)
+			f.Document.Body.Items = append(f.Document.Body.Items, &nt)
+		default:
+			f.Document.Body.Items = append(f.Document.Body.Items, o)
+		}
+	}
+}

unpack.go

@@ -23,7 +23,9 @@ package docx
 import (
 	"archive/zip"
 	"encoding/xml"
+	"errors"
 	"io"
+	"strconv"
 	"strings"
 )
 
@@ -108,9 +110,23 @@ func (f *Docx) parseDocRelation(file *zip.File) error {
 	defer zf.Close()
 
 	f.docRelation.Xmlns = XMLNS_R
-	//TODO: find last rID
+	err = xml.NewDecoder(zf).Decode(&f.docRelation)
-	f.rID = 100000
+	if err != nil {
-	return xml.NewDecoder(zf).Decode(&f.docRelation)
+		return err
+	}
+	for _, r := range f.docRelation.Relationship {
+		if !strings.HasPrefix(r.ID, "rId") {
+			return errors.New("invalid rel ID: " + r.ID)
+		}
+		id, err := strconv.ParseUint(r.ID[3:], 10, 64)
+		if err != nil {
+			return err
+		}
+		if f.rID < uintptr(id) {
+			f.rID = uintptr(id)
+		}
+	}
+	return nil
 }
 
 // parseMedia add the media into Docx struct