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go/doc/progs/echo.go
Rob Pike 293c8f8c65 casify tutorial examples
will bring document in line in a later CL, which may include revisiting some of the names

R=rsc
DELTA=58  (0 added, 0 deleted, 58 changed)
OCL=22906
CL=22908
2009-01-15 17:54:07 -08:00

33 lines
555 B
Go

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"os";
"flag";
)
var n_flag = flag.Bool("n", false, "don't print final newline")
const (
kSpace = " ";
kNewline = "\n";
)
func main() {
flag.Parse(); // Scans the arg list and sets up flags
var s string = "";
for i := 0; i < flag.NArg(); i++ {
if i > 0 {
s += kSpace
}
s += flag.Arg(i)
}
if !*n_flag {
s += kNewline
}
os.Stdout.WriteString(s);
}