46 lines
765 B
Go
46 lines
765 B
Go
package main
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import "fmt"
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import "io"
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import "log"
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import "os"
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import "bufio"
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import "strings"
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var PUNCTUATION = []string{".", ",", "\"", "—", "-", "/"}
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func longest(r io.Reader) string {
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lw := ""
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s := bufio.NewScanner(r)
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s.Split(bufio.ScanWords)
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for s.Scan() {
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word := s.Text()
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word = strings.ToLower(word)
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for _, c := range PUNCTUATION {
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word = strings.Replace(word, c, " ", -1)
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}
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for _, word := range strings.Fields(word) {
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if len(word) > len(lw) {
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lw = word
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}
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}
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}
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return lw
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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(longest(f))
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}
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