Golang Decoder.InputOffset方法代碼示例

//.........這裏部分代碼省略.........
			case interface{}: // a non-nil simple element: string, float64, bool
				v := map[string]interface{}{"#text": val, "#seq": seq}
				seq++
				val = v
			}

			// 'na' holding sub-elements of n.
			// See if 'key' already exists.
			// If 'key' exists, then this is a list, if not just add key:val to na.
			if v, ok := na[key]; ok {
				var a []interface{}
				switch v.(type) {
				case []interface{}:
					a = v.([]interface{})
				default: // anything else - note: v.(type) != nil
					a = []interface{}{v}
				}
				a = append(a, val)
				na[key] = a
			} else {
				na[key] = val // save it as a singleton
			}
		case xml.EndElement:
			if skey != "" {
				tt := t.(xml.EndElement)
				var name string
				if len(tt.Name.Space) > 0 {
					name = tt.Name.Space + `:` + tt.Name.Local
				} else {
					name = tt.Name.Local
				}
				if skey != name {
					return nil, fmt.Errorf("element %s not properly terminated, got %s at #%d",
						skey, name, p.InputOffset())
				}
			}
			// len(n) > 0 if this is a simple element w/o xml.Attrs - see xml.CharData case.
			if len(n) == 0 {
				// If len(na)==0 we have an empty element == "";
				// it has no xml.Attr nor xml.CharData.
				// Empty element content will be  map["etag"]map["#text"]""
				// after #seq injection - map["etag"]map["#seq"]seq - after return.
				if len(na) > 0 {
					n[skey] = na
				} else {
					n[skey] = "" // empty element
				}
			}
			return n, nil
		case xml.CharData:
			// clean up possible noise
			tt := strings.Trim(string(t.(xml.CharData)), "\t\r\b\n ")
			if skey == "" {
				// per Adrian (http://www.adrianlungu.com/) catch stray text
				// in decoder stream -
				// https://github.com/clbanning/mxj/pull/14#issuecomment-182816374
				// NOTE: CharSetReader must be set to non-UTF-8 CharSet or you'll get
				// a p.Token() decoding error when the BOM is UTF-16 or UTF-32.
				continue
			}
			if len(tt) > 0 {
				// every simple element is a #text and has #seq associated with it
				na["#text"] = cast(tt, r)
				na["#seq"] = seq
				seq++
			}