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@@ -0,0 +1,76 @@
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+package main
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+
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+import (
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+ "bufio"
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+ "fmt"
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+ "log"
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+ "os"
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+ "strings"
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+)
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+
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+type Directions struct {
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+ left string
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+ right string
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+}
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+
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+type Network struct {
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+ moves string
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+ paths map[string]Directions
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+}
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+
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+func readInput(file *os.File) Network {
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+ scanner := bufio.NewScanner(file)
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+ var network Network
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+ readMoves := false
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+
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+ for scanner.Scan() {
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+ line := scanner.Text()
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+ if line == "" {
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+ if !readMoves {
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+ readMoves = true
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+ continue
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+ }
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+
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+ break
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+ }
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+
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+ if !readMoves {
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+ network.moves = line
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+ network.paths = make(map[string]Directions)
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+ } else {
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+ fromParts := strings.Split(line, " = ")
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+ if len(fromParts) != 2 {
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+ log.Fatalf("Wrong number of fromParts: %s", line)
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+ }
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+
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+ from := fromParts[0]
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+ parts := strings.Split(fromParts[1], ", ")
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+ if len(parts) != 2 {
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+ log.Fatalf("Wrong number of parts: %s", fromParts[1])
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+ }
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+
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+ var directions Directions
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+ directions.left = parts[0]
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+ directions.right = parts[1]
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+ network.paths[from] = directions
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+ }
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+ }
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+
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+ return network
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+}
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+
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+func main() {
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+ if len(os.Args) < 2 {
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+ log.Fatal("You need to specify a file!")
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+ }
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+
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+ filePath := os.Args[1]
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+ file, err := os.Open(filePath)
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+ if err != nil {
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+ log.Fatalf("Failed to open %s!\n", filePath)
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+
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+ }
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+
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+ network := readInput(file)
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+ fmt.Println(network)
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+}
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