Handle multi row inline strings

The inline string struct is actually the same
as the shared strings struct, reuse it.

Note that Go version 1.10 is required.

Fixes #462

1 files changed, 15 insertions, 1 deletions

diff --git a/xmlSharedStrings.go b/xmlSharedStrings.go
index 3fcf3d5..48d4464 100644
--- a/xmlSharedStrings.go
+++ b/xmlSharedStrings.go
@@ -9,7 +9,10 @@
 
 package excelize
 
-import "encoding/xml"
+import (
+	"encoding/xml"
+	"strings"
+)
 
 // xlsxSST directly maps the sst element from the namespace
 // http://schemas.openxmlformats.org/spreadsheetml/2006/main. String values may
@@ -33,6 +36,17 @@ type xlsxSI struct {
 	R []xlsxR `xml:"r"`
 }
 
+func (x xlsxSI) String() string {
+	if len(x.R) > 0 {
+		var rows strings.Builder
+		for _, s := range x.R {
+			rows.WriteString(s.T)
+		}
+		return rows.String()
+	}
+	return x.T
+}
+
 // xlsxR directly maps the r element from the namespace
 // http://schemas.openxmlformats.org/spreadsheetml/2006/main - currently I have
 // not checked this for completeness - it does as much as I need.