golang工具基礎——xml、template

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go檔案

package main import ("fmt""encoding/xml""os""text/template")type Member struct {Name string `xml:"name,attr"`Comment string `xml:"comment,attr"`}type Struct struct {Name string `xml:"name,attr"`Comment string `xml:"comment,attr"`Members []Member `xml:"member"`}type Result struct {XMLName xml.Name `xml:"result"`Structs []Struct `xml:"struct"`}var result = Result{}func main() {if !parse() {return}if !output() {return}fmt.Print("OK")}func parse() bool {file, err := os.Open("struct.xml")if err != nil {fmt.Print(err)return false}var buffer [1024]byten, rerr := file.Read(buffer[0:])if rerr != nil {fmt.Print(rerr)return false}err = xml.Unmarshal(buffer[0:n], &result)if err != nil {fmt.Print(err)return false}return true}func output() bool {file, err := os.Create("Struct.h")if err != nil {fmt.Print(err)return false}t, err := template.ParseFiles("Struct_h.tpl")  if err != nil {fmt.Print(err)return false}err = t.Execute(file, result.Structs)  if err != nil {fmt.Print(err)return false}return true}

xml檔案

<?xml version="1.0" encoding="utf-8" standalone="yes"?><result><struct name="A" comment="a結構"><member name="A1" comment="A1注釋"/><member name="A2" comment="A2注釋"/><member name="A3" comment="A3注釋"/></struct><struct name="B" comment="b結構"><member name="B1" comment="B1注釋"/><member name="B2" comment="B2注釋"/><member name="B3" comment="B3注釋"/></struct></result>

tpl檔案

{{range .}}  // {{.Comment}}struct {{.Name}}{    {{range .Members}}    // {{.Comment}}    uint32_t {{.Name}};    {{end}}};{{end}}

輸出

  // a結構struct A{        // A1注釋    uint32_t A1;        // A2注釋    uint32_t A2;        // A3注釋    uint32_t A3;    };  // b結構struct B{        // B1注釋    uint32_t B1;        // B2注釋    uint32_t B2;        // B3注釋    uint32_t B3;    };