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/*
macli - Unofficial CLI-Based MyAnimeList Client
Copyright © 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package util
import (
"fmt"
"os"
"strconv"
)
func ParseNumeric(input string, prevValue int) int {
inputInt, err := strconv.Atoi(input)
if err != nil {
fmt.Println("Error while parsing input", err)
os.Exit(1)
}
switch input[0:1] {
case "+", "-":
// works both for increment and decrement
return prevValue + inputInt
default:
return inputInt
}
}
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