vendor/github.com/vmihailenco/msgpack/tag.go

   1 package msgpack
   2
   3 import (
   4         "strings"
   5 )
   6
   7 type tagOptions string
   8
   9 func (o tagOptions) Get(name string) (string, bool) {
  10         s := string(o)
  11         for len(s) > 0 {
  12                 var next string
  13                 idx := strings.IndexByte(s, ',')
  14                 if idx >= 0 {
  15                         s, next = s[:idx], s[idx+1:]
  16                 }
  17                 if strings.HasPrefix(s, name) {
  18                         return s[len(name):], true
  19                 }
  20                 s = next
  21         }
  22         return "", false
  23 }
  24
  25 func (o tagOptions) Contains(name string) bool {
  26         _, ok := o.Get(name)
  27         return ok
  28 }
  29
  30 func parseTag(tag string) (string, tagOptions) {
  31         if idx := strings.IndexByte(tag, ','); idx != -1 {
  32                 name := tag[:idx]
  33                 if strings.IndexByte(name, ':') == -1 {
  34                         return name, tagOptions(tag[idx+1:])
  35                 }
  36         }
  37
  38         if strings.IndexByte(tag, ':') == -1 {
  39                 return tag, ""
  40         }
  41         return "", tagOptions(tag)
  42 }