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@@ -0,0 +1,60 @@
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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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+)
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+
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+type sequence struct {
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+ action string
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+ value int
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+}
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+
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+func readFile(file *os.File) ([]sequence, error) {
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+ var sequences []sequence
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+ scanner := bufio.NewScanner(file)
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+ for scanner.Scan() {
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+ var p sequence
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+ line := scanner.Text()
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+ if line == "" {
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+ break
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+ }
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+
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+ n, err := fmt.Sscanf(line, "%1s%d\n", &p.action, &p.value)
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+ if err != nil || n != 2 {
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+ return sequences, fmt.Errorf("Error scanning '%s': %s", line, err)
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+ }
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+
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+ sequences = append(sequences, p)
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+ }
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+ if err := scanner.Err(); err != nil {
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+ return sequences, fmt.Errorf("Scanner error: %s", err)
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+ }
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+
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+ return sequences, nil
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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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+ file, err := os.Open(os.Args[1])
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+ if err != nil {
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+ log.Fatalf("Failed to open %s!\n", os.Args[1])
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+
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+ }
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+
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+ sequences, err := readFile(file)
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+ if err != nil {
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+ log.Fatalf("Can't read sequences!\n%s", err)
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+ }
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+
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+ for _, item := range sequences {
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+ fmt.Println(item)
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+ }
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+
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+ file.Close()
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+}
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