36 lines
587 B
Go
36 lines
587 B
Go
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package main
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import "fmt"
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import "io"
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import "io/ioutil"
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import "log"
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import "os"
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import "strings"
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func wc(r io.Reader) map[string]uint {
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words := make(map[string]uint)
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if text, err := ioutil.ReadAll(r); err != nil {
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log.Fatalln(err)
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} else {
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for _, word := range strings.Fields(string(text)) {
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words[word]++
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}
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}
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return words
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}
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func openFile(path *string) *os.File {
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f, err := os.Open(os.Args[1])
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if err != nil {
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log.Fatalln(err)
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}
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return f
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}
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func main() {
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if len(os.Args) <= 1 {
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log.Fatalln("Missing file")
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}
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f := openFile(&os.Args[1])
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fmt.Println(wc(f))
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}
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