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more fun with triv.go: flags and arguments

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R=rsc
DELTA=23  (23 added, 0 deleted, 0 changed)
OCL=25088
CL=25134
This commit is contained in:
Rob Pike 2009-02-17 19:35:01 -08:00
parent d0424faf17
commit 03d6909ff7
1 changed files with 23 additions and 0 deletions
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23
src/lib/http/triv.go
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@ -45,6 +45,27 @@ func FileServer(c *http.Conn, req *http.Request) {
fmt.Fprintf(c, "[%d bytes]\n", n);
}
// simple flag server
var booleanflag = flag.Bool("boolean", true, "another flag for testing")
func FlagServer(c *http.Conn, req *http.Request) {
c.SetHeader("content-type", "text/plain; charset=utf-8");
fmt.Fprint(c, "Flags:\n");
flag.VisitAll(func (f *flag.Flag) {
if f.Value.String() != f.DefValue {
fmt.Fprintf(c, "%s = %s [default = %s]\n", f.Name, f.Value.String(), f.DefValue);
} else {
fmt.Fprintf(c, "%s = %s\n", f.Name, f.Value.String());
}
});
}
// simple argument server
func ArgServer(c *http.Conn, req *http.Request) {
for i, s := range sys.Args {
fmt.Fprint(c, s, " ");
}
}
// a channel (just for the fun of it)
type Chan chan int
@ -66,6 +87,8 @@ func main() {
flag.Parse();
http.Handle("/counter", new(Counter));
http.Handle("/go/", http.HandlerFunc(FileServer));
http.Handle("/flags/", http.HandlerFunc(FlagServer));
http.Handle("/args/", http.HandlerFunc(ArgServer));
http.Handle("/go/hello", http.HandlerFunc(HelloServer));
http.Handle("/chan", ChanCreate());
err := http.ListenAndServe(":12345", nil);