Add vendor files for go build

vendor/github.com/alecthomas/chroma/lexers/x/xml.go

@@ -0,0 +1,45 @@
+package x
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// XML lexer.
+var XML = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "XML",
+		Aliases:   []string{"xml"},
+		Filenames: []string{"*.xml", "*.xsl", "*.rss", "*.xslt", "*.xsd", "*.wsdl", "*.wsf", "*.svg"},
+		MimeTypes: []string{"text/xml", "application/xml", "image/svg+xml", "application/rss+xml", "application/atom+xml"},
+		DotAll:    true,
+	},
+	Rules{
+		"root": {
+			{`[^<&]+`, Text, nil},
+			{`&\S*?;`, NameEntity, nil},
+			{`\<\!\[CDATA\[.*?\]\]\>`, CommentPreproc, nil},
+			{`<!--`, Comment, Push("comment")},
+			{`<\?.*?\?>`, CommentPreproc, nil},
+			{`<![^>]*>`, CommentPreproc, nil},
+			{`<\s*[\w:.-]+`, NameTag, Push("tag")},
+			{`<\s*/\s*[\w:.-]+\s*>`, NameTag, nil},
+		},
+		"comment": {
+			{`[^-]+`, Comment, nil},
+			{`-->`, Comment, Pop(1)},
+			{`-`, Comment, nil},
+		},
+		"tag": {
+			{`\s+`, Text, nil},
+			{`[\w.:-]+\s*=`, NameAttribute, Push("attr")},
+			{`/?\s*>`, NameTag, Pop(1)},
+		},
+		"attr": {
+			{`\s+`, Text, nil},
+			{`".*?"`, LiteralString, Pop(1)},
+			{`'.*?'`, LiteralString, Pop(1)},
+			{`[^\s>]+`, LiteralString, Pop(1)},
+		},
+	},
+))