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@@ -0,0 +1,61 @@
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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 rule struct {
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+ name string
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+ firstSegment [2]int
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+ secondSegment [2]int
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+}
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+
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+var rules []rule
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+
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+func readRule(line string) {
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+ var newRule rule
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+ n, err := fmt.Sscanf(line, "%s %d-%d or %d-%d\n", &newRule.name, &newRule.firstSegment[0], &newRule.firstSegment[1], &newRule.secondSegment[0], &newRule.secondSegment[1])
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+ if err != nil || n != 5 {
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+ log.Fatalf("Error scanning '%s': %s", line, err)
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+ }
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+
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+ rules = append(rules, newRule)
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+}
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+
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+func readFile(file *os.File) {
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+ scanner := bufio.NewScanner(file)
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+ for scanner.Scan() {
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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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+ readRule(line)
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+ }
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+ if err := scanner.Err(); err != nil {
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+ log.Fatalf("Scanner error: %s", err)
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+ }
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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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+ readFile(file)
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+ if err := file.Close(); err != nil {
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+ log.Fatalf("Failed to close file: %s", err)
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+ }
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+
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+ fmt.Println(rules)
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+}
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