xmlwriter is a Go library providing a procedural XML generation API based on libxml2's xmlwriter module.
The package is extensively documented on GoDoc.
Quick example:
func main() {
b := &bytes.Buffer{}
w := xmlwriter.Open(b)
ec := &xmlwriter.ErrCollector{}
defer ec.Panic()
ec.Do(
w.StartDoc(xmlwriter.Doc{})
w.StartElem(xmlwriter.Elem{Name: "foo"})
w.WriteAttr(xmlwriter.Attr{Name: "a1", Value: "val1"})
w.WriteAttr(xmlwriter.Attr{Name: "a2", Value: "val2"})
w.WriteComment(xmlwriter.Comment{"hello"})
w.StartElem(xmlwriter.Elem{Name: "bar"})
w.WriteAttr(xmlwriter.Attr{Name: "a1", Value: "val1"})
w.WriteAttr(xmlwriter.Attr{Name: "a2", Value: "val2"})
w.StartElem(xmlwriter.Elem{Name: "baz"})
w.EndAllFlush()
)
fmt.Println(b.String())
}xmlwriter is about twice as quick as using the stdlib's encoding/xml and
offers total control of the output. If you don't require that level of control,
it's probably better to stick with encoding/xml
BenchmarkWriterHuge-4 100 13228917 ns/op 4944 B/op 4 allocs/op
BenchmarkWriterSmall-4 200000 6639 ns/op 4944 B/op 4 allocs/op
BenchmarkGolangHuge-4 50 32770333 ns/op 4324496 B/op 60008 allocs/op
BenchmarkGolangSmall-4 100000 13161 ns/op 5936 B/op 28 allocs/op
xmlwriter is exhaustively tested using a fairly insane mess of C scripts you
can find in the tester/ directory.
xmlwriter uses the Apache License 2.0. I pulled in about 60 lines of code from
the xml/encoding package in the Go sources and retained the copyright. Not sure
the exact implications, IANAL. Please file an issue if I've done something wrong.