Commit 1193c44e authored by Kirill Smelkov's avatar Kirill Smelkov

go/internal/xurl: New package (draft)

With xurl.ParseQuery being simpler analog of url.ParseQuery.
Simpler: It returns regular map instead of url.Values by not allowing duplicates.
parent 20e8f37b
// Copyright (C) 2020-2021 Nexedi SA and Contributors.
// Kirill Smelkov <kirr@nexedi.com>
//
// This program is free software: you can Use, Study, Modify and Redistribute
// it under the terms of the GNU General Public License version 3, or (at your
// option) any later version, as published by the Free Software Foundation.
//
// You can also Link and Combine this program with other software covered by
// the terms of any of the Free Software licenses or any of the Open Source
// Initiative approved licenses and Convey the resulting work. Corresponding
// source of such a combination shall include the source code for all other
// software used.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
//
// See COPYING file for full licensing terms.
// See https://www.nexedi.com/licensing for rationale and options.
// Package xurl complements standard package net/url.
package xurl
import (
"fmt"
"net/url"
)
// ParseQuery parses query string into regular map.
// see also url.ParseQuery
func ParseQuery(query string) (map[string]string, error) {
qv, err := url.ParseQuery(query)
if err != nil {
return nil, err
}
q := map[string]string{}
for k, vv := range qv {
if len(vv) == 0 {
return nil, fmt.Errorf("parameter %q without value", k)
}
if len(vv) != 1 {
return nil, fmt.Errorf("duplicate parameter %q ", k)
}
q[k] = vv[0]
}
return q, nil
}
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