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path.go
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/
path.go
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// SPDX-License-Identifier: MIT
package doc
import (
"encoding/xml"
"github.com/caixw/apidoc/v5/internal/locale"
)
// Path 路径信息
// <path path="/users/{id}">
// <param name="id" type="number" summary="summary" />
// <query name="page" type="number" summary="page" default="1" />
// </path>
type Path struct {
Path string `xml:"path,attr"`
Params []*Param `xml:"param,omitempty"`
Queries []*Param `xml:"query,omitempty"`
Reference string `xml:"ref,attr,omitempty"`
}
type shadowPath Path
// UnmarshalXML xml.Unmarshaler
func (p *Path) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
field := "/" + start.Name.Local
shadow := (*shadowPath)(p)
if err := d.DecodeElement(shadow, &start); err != nil {
return fixedSyntaxError(err, "", field, 0)
}
if shadow.Path == "" {
return newSyntaxError(field+"#path", locale.ErrRequired)
}
params, err := parsePath(shadow.Path)
if err != nil {
return fixedSyntaxError(err, "", field+"#path", 0)
}
if len(params) != len(shadow.Params) {
return newSyntaxError(field+"#path", locale.ErrPathNotMatchParams)
}
for _, param := range shadow.Params {
if _, found := params[param.Name]; !found {
return newSyntaxError(field+"#path", locale.ErrPathNotMatchParams)
}
}
// queries 不作判断,同名会被当作数据处理
return nil
}
func parsePath(path string) (params map[string]struct{}, err error) {
start := -1
for i, b := range path {
switch b {
case '{':
if start != -1 {
return nil, locale.Errorf(locale.ErrInvalidFormat)
}
start = i + 1
case '}':
if start == -1 {
return nil, locale.Errorf(locale.ErrInvalidFormat)
}
if params == nil {
params = make(map[string]struct{}, 3)
}
params[path[start:i]] = struct{}{}
start = -1
default:
}
}
if start != -1 { // 没有结束符号
return nil, locale.Errorf(locale.ErrInvalidFormat)
}
return params, nil
}