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1 package main
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2
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3 import (
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4 "flag"
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5 "fmt"
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6 "html/template"
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7 "log"
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8 "net/http"
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9 "os"
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10 )
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11
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12 type rate struct {
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13 year int
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14 rate0 float64
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15 rate1 float64
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16 }
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17
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18 type rates []rate
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19
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20 func main() {
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21
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22 var s = flag.Bool( "s", false, "server mode" )
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23 var p = flag.Int( "p", 8080, "port")
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24 flag.Parse()
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25
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26 if *s {
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27 host := "localhost:" + fmt.Sprintf( "%d", *p )
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28 fmt.Fprintf( os.Stderr, "starting server (%d)...\n", *p )
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29
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30 r0 := rate{ 2001, 0.1, 0.2 }
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31 r1 := rate{ 2002, 0.2, 0.3 }
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32 rt := rates{ r0, r1 }
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33
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34 http.HandleFunc( "/", handler )
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35 http.HandleFunc( "/list", rt.list )
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36 log.Fatal( http.ListenAndServe( host, nil ) )
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37
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38 } else {
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39 files := flag.Args()
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40
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41 if len( files ) == 3 {
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42 fmt.Println( "ok" )
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43 } else {
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44 fmt.Fprintln( os.Stderr, "not ok" )
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45 }
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46 }
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47 }
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48
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49 func handler( w http.ResponseWriter, r *http.Request ) {
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50
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51 const tmpl = `<p> Hello, Template ! </p>`
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52 t := template.Must( template.New( "hoge" ).Parse( tmpl ) )
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53 err := t.Execute( w, nil ); if err != nil {
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54 log.Fatal( err )
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55 }
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56 fmt.Fprintf( w, "url.path = %q\n", r.URL.Path )
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57 }
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58
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59 func ( r rate ) String() string {
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60 return fmt.Sprintf( "%d年,%.2f ％,%.2f ％", r.year, r.rate0, r.rate1 )
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61 }
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62
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63 func ( rt rates ) list( w http.ResponseWriter, r *http.Request ) {
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64 for i, v := range rt {
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65 fmt.Fprintf( w, "%d,%v\n", i, v )
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66 }
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67 }
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68
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