diff options
Diffstat (limited to 'src/encoding/xml/marshal.go')
| -rw-r--r-- | src/encoding/xml/marshal.go | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/encoding/xml/marshal.go b/src/encoding/xml/marshal.go index 0554b0d204..d8a04a95a2 100644 --- a/src/encoding/xml/marshal.go +++ b/src/encoding/xml/marshal.go @@ -345,8 +345,11 @@ func (p *printer) createAttrPrefix(url string) string { if prefix == "" || !isName([]byte(prefix)) || strings.Contains(prefix, ":") { prefix = "_" } - if strings.HasPrefix(prefix, "xml") { - // xmlanything is reserved. + // xmlanything is reserved and any variant of it regardless of + // case should be matched, so: + // (('X'|'x') ('M'|'m') ('L'|'l')) + // See Section 2.3 of https://www.w3.org/TR/REC-xml/ + if len(prefix) >= 3 && strings.EqualFold(prefix[:3], "xml") { prefix = "_" + prefix } if p.attrNS[prefix] != "" { |