mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-22 09:15:50 +03:00
64 lines
2 KiB
Go
64 lines
2 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package util
|
|
|
|
import "net/url"
|
|
|
|
// UniqueStrings returns a deduplicated version of the given
|
|
// slice of strings, without changing the order of the entries.
|
|
func UniqueStrings(strings []string) []string {
|
|
var (
|
|
l = len(strings)
|
|
keys = make(map[string]any, l) // Use map to dedupe items.
|
|
unique = make([]string, 0, l) // Return slice.
|
|
)
|
|
|
|
for _, str := range strings {
|
|
// Check if already set as a key in the map;
|
|
// if not, add to return slice + mark key as set.
|
|
if _, set := keys[str]; !set {
|
|
keys[str] = nil // Value doesn't matter.
|
|
unique = append(unique, str)
|
|
}
|
|
}
|
|
|
|
return unique
|
|
}
|
|
|
|
// UniqueURIs returns a deduplicated version of the given
|
|
// slice of URIs, without changing the order of the entries.
|
|
func UniqueURIs(uris []*url.URL) []*url.URL {
|
|
var (
|
|
l = len(uris)
|
|
keys = make(map[string]any, l) // Use map to dedupe items.
|
|
unique = make([]*url.URL, 0, l) // Return slice.
|
|
)
|
|
|
|
for _, uri := range uris {
|
|
uriStr := uri.String()
|
|
|
|
// Check if already set as a key in the map;
|
|
// if not, add to return slice + mark key as set.
|
|
if _, set := keys[uriStr]; !set {
|
|
keys[uriStr] = nil // Value doesn't matter.
|
|
unique = append(unique, uri)
|
|
}
|
|
}
|
|
|
|
return unique
|
|
}
|