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utils.go
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// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
import (
"encoding/xml"
"net/http"
"path"
"reflect"
"runtime"
"strings"
)
func WrapF(f http.HandlerFunc) HandlerFunc {
return func(c *Context) {
f(c.Writer, c.Request)
}
}
func WrapH(h http.Handler) HandlerFunc {
return func(c *Context) {
h.ServeHTTP(c.Writer, c.Request)
}
}
type H map[string]interface{}
// Allows type H to be used with xml.Marshal
func (h H) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
start.Name = xml.Name{
Space: "",
Local: "map",
}
if err := e.EncodeToken(start); err != nil {
return err
}
for key, value := range h {
elem := xml.StartElement{
Name: xml.Name{Space: "", Local: key},
Attr: []xml.Attr{},
}
if err := e.EncodeElement(value, elem); err != nil {
return err
}
}
if err := e.EncodeToken(xml.EndElement{Name: start.Name}); err != nil {
return err
}
return nil
}
func filterFlags(content string) string {
for i, char := range content {
if char == ' ' || char == ';' {
return content[:i]
}
}
return content
}
func chooseData(custom, wildcard interface{}) interface{} {
if custom == nil {
if wildcard == nil {
panic("negotiation config is invalid")
}
return wildcard
}
return custom
}
func parseAccept(acceptHeader string) []string {
parts := strings.Split(acceptHeader, ",")
out := make([]string, 0, len(parts))
for _, part := range parts {
index := strings.IndexByte(part, ';')
if index >= 0 {
part = part[0:index]
}
part = strings.TrimSpace(part)
if len(part) > 0 {
out = append(out, part)
}
}
return out
}
func lastChar(str string) uint8 {
size := len(str)
if size == 0 {
panic("The length of the string can't be 0")
}
return str[size-1]
}
func nameOfFunction(f interface{}) string {
return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
}
func joinPaths(absolutePath, relativePath string) string {
if len(relativePath) == 0 {
return absolutePath
}
finalPath := path.Join(absolutePath, relativePath)
appendSlash := lastChar(relativePath) == '/' && lastChar(finalPath) != '/'
if appendSlash {
return finalPath + "/"
}
return finalPath
}