78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
/*
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* Copyright (C) 2020-2022, IrineSistiana
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*
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* This file is part of mosdns.
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*
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* mosdns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* mosdns is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package utils
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import (
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"github.com/mitchellh/mapstructure"
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"golang.org/x/exp/constraints"
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"strconv"
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)
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func SetDefaultNum[K constraints.Integer | constraints.Float](p *K, d K) {
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if *p == 0 {
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*p = d
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}
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}
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func SetDefaultUnsignNum[K constraints.Integer | constraints.Float](p *K, d K) {
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if *p <= 0 {
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*p = d
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}
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}
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func SetDefaultString(p *string, d string) {
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if len(*p) == 0 {
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*p = d
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}
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}
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func CheckNumRange[K constraints.Integer | constraints.Float](v, min, max K) bool {
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if v < min || v > max {
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return false
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}
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return true
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}
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// WeakDecode decodes args from config to output.
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func WeakDecode(in any, output any) error {
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config := &mapstructure.DecoderConfig{
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ErrorUnused: true,
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Result: output,
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WeaklyTypedInput: true,
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TagName: "yaml",
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}
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decoder, err := mapstructure.NewDecoder(config)
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if err != nil {
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return err
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}
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return decoder.Decode(in)
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}
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func ParseNameOrNum[T constraints.Integer](s string, m map[string]T) (T, bool) {
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i, err := strconv.Atoi(s)
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if err != nil {
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v, ok := m[s]
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return v, ok
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}
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return T(i), true
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}
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