golang动态解析xml

package main import (	"encoding/xml"	"fmt"	"mahonia"	"os"	"strconv"	"text/template" ) type Attribute struct {	Name string	Value string } type Token struct {	Name string	Attributes []Attribute	Tokens []Token } type Result struct {	Root Token } var result = Result{} func main() {	if !parse("config.xml") {	return	}	if !output("code_h.tpl", "code.h") {	return	}	if !output("code_cpp.tpl", "code.cpp") {	return	}	fmt.Println("OK") } func parse_token(decoder *xml.Decoder, tt xml.Token, mytoken *Token) {	token := tt.(xml.StartElement)	name := token.Name.Local	mytoken.Name = name	for _, attr := range token.Attr {	attrName := attr.Name.Local	attrValue := attr.Value	attr := Attribute{Name: attrName, Value: attrValue}	mytoken.Attributes = append(mytoken.Attributes, attr)	}	var t xml.Token	var err error	for t, err = decoder.Token(); err == nil; t, err = decoder.Token() {	switch t.(type) {	// 处理元素开始（标签）	case xml.StartElement:	mytoken.Tokens = append(mytoken.Tokens, Token{})	parse_token(decoder, t, &mytoken.Tokens[len(mytoken.Tokens)-1])	// 处理元素结束（标签）	case xml.EndElement:	return	case xml.CharData:	default:	return	}	} } func parse(filename string) bool {	file, err := os.Open(filename)	if err != nil {	fmt.Println(err)	return false	}	var t xml.Token	decoder := xml.NewDecoder(file)	t, decerr := decoder.Token()	if decerr != nil {	fmt.Println(decerr)	return false	}	parse_token(decoder, t, &result.Root)	fmt.Println("result", result.Root)	return true } func genlist(n string) []string {	num, _ := strconv.Atoi(n)	ret := make([]string, num)	for i := 0; i < num; i++ {	ret[i] = strconv.Itoa(i)	}	return ret } func iconv(str string) string {	enc := mahonia.NewEncoder("gb2312")	return enc.ConvertString(str) } func output(src string, des string) bool {	file, err := os.Create(des)	if err != nil {	fmt.Println(err)	return false	}	t := template.New("text")	if err != nil {	fmt.Println(err)	return false	}	t = t.Funcs(template.FuncMap{"genlist": genlist, "iconv": iconv})	srcfile, err := os.Open(src)	if err != nil {	fmt.Println(err)	return false	}	var buffer [1024 * 1024]byte	n, rerr := srcfile.Read(buffer[0:])	if rerr != nil {	fmt.Println(rerr)	return false	}	t, err = t.Parse(string(buffer[0:n]))	if err != nil {	fmt.Println(err)	return false	}	err = t.Execute(file, result.Root)	if err != nil {	fmt.Println(err)	return false	}	return true } 

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