adventofcode/2018/internal/util/input.go
2018-12-05 03:49:03 -05:00

38 lines
732 B
Go

package util
import (
"bufio"
"bytes"
"io/ioutil"
"os"
)
// ReadInput isn't here to make friends. It is highly specific to this domain.
// It assumes the first argument on the command-line is a file with input. It
// returns an array of strings containing the lines of that file.
func ReadInput() []string {
file, err := os.Open(os.Args[1])
if err != nil {
panic(err)
}
lines := []string{}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
return lines
}
// ReadInputS is like ReadInput, but returns a byte array.
func ReadInputBytes() []byte {
rawData, err := ioutil.ReadFile(os.Args[1])
if err != nil {
panic(err)
}
return bytes.TrimRight(rawData, "\n")
}