updated format to look like gopl.io format

This commit is contained in:
Derek McQuay 2015-12-03 19:32:40 -08:00
parent 4fd6aaaeff
commit 2cf179e6a4
2 changed files with 88 additions and 0 deletions

51
ch1/dup/1_4.go Normal file
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@ -0,0 +1,51 @@
package main
import (
"bufio"
"fmt"
"log"
"os"
"strings"
)
func main() {
counts := make(map[string][]string)
file := os.Args[1:]
if len(file) == 0 {
countLines(os.Stdin, counts)
} else {
for _, i := range file {
f, err := os.Open(i)
if err != nil {
log.Print(err)
}
countLines(f, counts)
f.Close()
}
}
for lines, n := range counts {
if len(n) > 1 {
fmt.Printf("%v\t\"%s\"\n", n, strings.Trim(lines, " "))
}
}
}
func contains(slice []string, file string) bool {
for _, i := range slice {
if i == file {
return true
}
}
return false
}
func countLines(f *os.File, counts map[string][]string) {
input := bufio.NewScanner(f)
for input.Scan() {
cur := counts[input.Text()]
if !contains(cur, f.Name()) {
cur = append(cur, f.Name())
counts[input.Text()] = cur
}
}
}

37
ch1/dup/dup2.go Normal file
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@ -0,0 +1,37 @@
package main
import (
"bufio"
"fmt"
"log"
"os"
)
func main() {
counts := make(map[string]int)
file := os.Args[1:]
if len(file) == 0 {
countLines(os.Stdin, counts)
} else {
for _, i := range file {
f, err := os.Open(i)
if err != nil {
log.Print(err)
}
countLines(f, counts)
f.Close()
}
}
for lines, n := range counts {
if n > 1 {
fmt.Printf("%d\t%s\n", n, lines)
}
}
}
func countLines(f *os.File, counts map[string]int) {
input := bufio.NewScanner(f)
for input.Scan() {
counts[input.Text()]++
}
}