fix issue 19

Author: tamerh

go.mod

@@ -0,0 +1,5 @@
+module github.com/tamerh/xml-stream-parser
+
+go 1.12
+
+require github.com/tamerh/xpath v1.0.0 // indirect

go.sum

@@ -0,0 +1,2 @@
+github.com/tamerh/xpath v1.0.0 h1:NccMES/Ej8slPCFDff73Kf6V1xu9hdbuKf2RyDsxf5Q=
+github.com/tamerh/xpath v1.0.0/go.mod h1:t0wnh72FQlOVEO20f2Dl3EoVxso9GnLREh1WTpvNmJQ=

sample.xml

@@ -18,8 +18,9 @@
     </tag1>
     <!-- some comments <> "" '' -->
     <tag1 att1="<att1>" att2="att1">
-        <tag11 att1="att1">InnerText2</tag11>
-        <tag12 att1="att1"/>
+        <tag11 att1= "att1">InnerText2</tag11>
+        <tag12 att1= 
+        "att1"/>
         <tag13>InnerText213</tag13>
         <tag14 />
     </tag1>

xmlparser.go

@@ -425,6 +425,13 @@ search_close_tag:
 				return nil, false, x.defaultError()
 			}
 
+			for x.isWS(cur) {
+				cur, err = x.readByte()
+				if err != nil {
+					return nil, false, x.defaultError()
+				}
+			}
+
 			if !(cur == '"' || cur == '\'') {
 				return nil, false, x.defaultError()
 			}
@@ -842,7 +849,7 @@ func (x *XMLParser) string(start byte) (string, error) {
 }
 
 // scratch taken from
-//https://github.com/bcicen/jstream
+// https://github.com/bcicen/jstream
 type scratch struct {
 	data []byte
 	fill int