|
|
@@ -0,0 +1,62 @@
|
|
|
+package main
|
|
|
+
|
|
|
+import (
|
|
|
+ "bufio"
|
|
|
+ "fmt"
|
|
|
+ "log"
|
|
|
+ "os"
|
|
|
+ "strings"
|
|
|
+)
|
|
|
+
|
|
|
+func getTokens(line string) ([]string, error) {
|
|
|
+ scanner := bufio.NewScanner(strings.NewReader(line))
|
|
|
+ scanner.Split(bufio.ScanWords)
|
|
|
+ var tokens []string
|
|
|
+ for scanner.Scan() {
|
|
|
+ tokens = append(tokens, scanner.Text())
|
|
|
+ }
|
|
|
+ if err := scanner.Err(); err != nil {
|
|
|
+ return tokens, fmt.Errorf("Scanner error: %s", err)
|
|
|
+ }
|
|
|
+
|
|
|
+ return tokens, nil
|
|
|
+}
|
|
|
+
|
|
|
+func readFile(file *os.File) {
|
|
|
+ scanner := bufio.NewScanner(file)
|
|
|
+ for scanner.Scan() {
|
|
|
+ line := scanner.Text()
|
|
|
+ if line == "" {
|
|
|
+ continue
|
|
|
+ }
|
|
|
+
|
|
|
+ tokens, err := getTokens(line)
|
|
|
+ if err != nil {
|
|
|
+ log.Fatalf("Error scanning %s: %s", line, err)
|
|
|
+ }
|
|
|
+
|
|
|
+ fmt.Println(strings.Join(tokens, ","))
|
|
|
+
|
|
|
+ }
|
|
|
+ if err := scanner.Err(); err != nil {
|
|
|
+ log.Fatalf("Scanner error: %s", err)
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+func main() {
|
|
|
+ if len(os.Args) < 2 {
|
|
|
+ log.Fatal("You need to specify a file!")
|
|
|
+ }
|
|
|
+
|
|
|
+ filePath := os.Args[1]
|
|
|
+ file, err := os.Open(filePath)
|
|
|
+ if err != nil {
|
|
|
+ log.Fatalf("Failed to open %s!\n", filePath)
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ readFile(file)
|
|
|
+ if err := file.Close(); err != nil {
|
|
|
+ log.Fatalf("Failed to close file: %s", err)
|
|
|
+ }
|
|
|
+}
|
