54 lines
1.1 KiB
Go
54 lines
1.1 KiB
Go
package deadlinks
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import (
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"errors"
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"fmt"
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"net/url"
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)
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// URL is a standard universal resource identifier, normalized particularly for
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// this package.
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type URL string
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// ParseURL parses and returns a URL based on the given string, or an error.
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func ParseURL(urlStr string) (URL, error) {
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u, err := url.Parse(urlStr)
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if err != nil {
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return "", err
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}
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return URL(u.String()), nil
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}
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func parseURLs(urlStrs []string) ([]URL, error) {
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var (
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res = make([]URL, 0, len(urlStrs))
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errs []error
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)
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for _, urlStr := range urlStrs {
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u, err := ParseURL(urlStr)
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if err == nil {
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res = append(res, u)
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} else {
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errs = append(errs, err)
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}
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}
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return res, errors.Join(errs...)
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}
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func (u URL) toStd() *url.URL {
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uu, err := url.Parse(string(u))
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if err != nil {
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panic(fmt.Sprintf("parsing URL %q: %v", u, err))
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}
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return uu
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}
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// ResolveReference is equivalend to the method of the same name in `net/url`.
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func (u URL) ResolveReference(u2Str string) (URL, error) {
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u2, err := url.Parse(u2Str)
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if err != nil {
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return "", err
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}
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return URL(u.toStd().ResolveReference(u2).String()), nil
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}
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