mirror of https://github.com/goharbor/harbor.git
84 lines
1.4 KiB
Go
84 lines
1.4 KiB
Go
package pgtype
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import (
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"bytes"
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"fmt"
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)
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type UntypedTextMultirange struct {
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Elements []string
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}
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func ParseUntypedTextMultirange(src string) (*UntypedTextMultirange, error) {
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utmr := &UntypedTextMultirange{}
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utmr.Elements = make([]string, 0)
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buf := bytes.NewBufferString(src)
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skipWhitespace(buf)
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r, _, err := buf.ReadRune()
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if err != nil {
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return nil, fmt.Errorf("invalid array: %v", err)
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}
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if r != '{' {
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return nil, fmt.Errorf("invalid multirange, expected '{': %v", err)
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}
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parseValueLoop:
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for {
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r, _, err = buf.ReadRune()
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if err != nil {
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return nil, fmt.Errorf("invalid multirange: %v", err)
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}
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switch r {
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case ',': // skip range separator
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case '}':
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break parseValueLoop
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default:
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buf.UnreadRune()
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value, err := parseRange(buf)
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if err != nil {
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return nil, fmt.Errorf("invalid multirange value: %v", err)
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}
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utmr.Elements = append(utmr.Elements, value)
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}
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}
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skipWhitespace(buf)
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if buf.Len() > 0 {
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return nil, fmt.Errorf("unexpected trailing data: %v", buf.String())
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}
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return utmr, nil
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}
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func parseRange(buf *bytes.Buffer) (string, error) {
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s := &bytes.Buffer{}
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boundSepRead := false
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for {
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r, _, err := buf.ReadRune()
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if err != nil {
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return "", err
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}
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switch r {
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case ',', '}':
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if r == ',' && !boundSepRead {
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boundSepRead = true
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break
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}
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buf.UnreadRune()
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return s.String(), nil
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}
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s.WriteRune(r)
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}
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}
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