58 lines
864 B
Go
58 lines
864 B
Go
|
package mergelbl
|
||
|
|
|
||
|
|
import(
|
||
|
|
"os"
|
||
|
|
"fmt"
|
||
|
|
"bufio"
|
||
|
|
"flag"
|
||
|
|
"log"
|
||
|
|
)
|
||
|
|
|
||
|
|
func
|
||
|
|
Run(args []string) int {
|
||
|
|
var(
|
||
|
|
e error
|
||
|
|
buf string
|
||
|
|
)
|
||
|
|
rsep := '\n'
|
||
|
|
wsep := "\n"
|
||
|
|
//del := ""
|
||
|
|
status := 0
|
||
|
|
arg0 := args[0]
|
||
|
|
args = args[1:]
|
||
|
|
flagSet := flag.NewFlagSet(arg0, flag.ExitOnError)
|
||
|
|
flagSet.Usage = func() {
|
||
|
|
fmt.Fprintf(os.Stderr, "usage: %s <file1> <file2> .. [fileN]\n", arg0)
|
||
|
|
flagSet.PrintDefaults()
|
||
|
|
}
|
||
|
|
flagSet.Parse(args)
|
||
|
|
args = flagSet.Args()
|
||
|
|
|
||
|
|
files := make([]*os.File, len(args))
|
||
|
|
for i, v := range args {
|
||
|
|
files[i], e = os.Open(v)
|
||
|
|
if e!=nil {
|
||
|
|
log.Fatal(e)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
rds := make([]*bufio.Reader, len(files))
|
||
|
|
for i, v := range files {
|
||
|
|
rds[i] = bufio.NewReader(v)
|
||
|
|
}
|
||
|
|
|
||
|
|
for{
|
||
|
|
s := ""
|
||
|
|
for _, r := range rds{
|
||
|
|
buf, e = r.ReadString(byte(rsep))
|
||
|
|
if e!=nil {
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
s += buf[:len(buf)-1]
|
||
|
|
}
|
||
|
|
fmt.Printf("%s%s", s, wsep)
|
||
|
|
}
|
||
|
|
return status
|
||
|
|
}
|
||
|
|
|