53 lines
1,019 B
Go
53 lines
1,019 B
Go
package models
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"regexp"
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"strconv"
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"time"
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)
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type Meta struct {
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Key string
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Value any
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}
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func (m Meta) MarshalText() ([]byte, error) {
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if regexp.MustCompile(`\s`).MatchString(m.Key) {
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return []byte{}, fmt.Errorf("whitespace is now allowed in key: %s", m.Key)
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}
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buff := &bytes.Buffer{}
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buff.WriteRune('@')
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buff.WriteString(m.Key)
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buff.WriteRune(' ')
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switch v := m.Value.(type) {
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default:
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return nil, fmt.Errorf("Unknown type %T", v)
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case nil:
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return []byte{}, nil
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case string:
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buff.WriteString(v)
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case int:
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buff.WriteString(strconv.Itoa(v))
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case float64:
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buff.WriteString(strconv.FormatFloat(v, 'f', -1, 64))
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case json.Number:
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buff.WriteString(v.String())
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case json.RawMessage:
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buff.Write(v)
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case []byte:
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buff.Write(v)
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case byte:
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buff.WriteByte(v)
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case rune:
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buff.WriteString(string(v))
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case bool:
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buff.WriteString(strconv.FormatBool(v))
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case time.Time:
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buff.WriteString(v.Format(time.RFC3339))
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}
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return buff.Bytes(), nil
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}
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