Mercurial > mercurial > hgweb_golang.cgi

annotate src/entai_app/entai_app.go @ 11:c3a589f0521d

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refine code.
author pyon@macmini
date Tue, 07 Nov 2017 21:14:31 +0900
parents f4ba4cfb09fd
children
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1 /****************************************************************************/
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2 /* Entai_app.go */
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3 /* Last Change: 2016-10-28 Fri 19:33:15. */
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4 /* By T.Mutoh */
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5 /****************************************************************************/
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6
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7 package main
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8
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9 import (
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10 "bufio"
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11 "encoding/csv"
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12 "flag"
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13 "fmt"
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14 "io"
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15 "log"
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16 "net/http"
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17 "os"
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18 "strconv"
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19 "strings"
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20 "time"
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21
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22 "entai"
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23 )
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24
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25 var ver = "0.4"
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26 var e entai.Entai
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27
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28 func main() {
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29
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30 // arguments
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31 h := flag.Bool( "h", false, "help" )
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32 c := flag.String( "c", "", "config csv file" )
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33 r := flag.Bool( "r", false, "print rate" )
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34 b := flag.Bool( "b", false, "batch mode" )
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35 l := flag.Bool( "l", false, "1-liner mode" )
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36 v := flag.Bool( "v", false, "print verbose in 1-liner mode")
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37 i := flag.Bool( "i", false, "print input value in 1-liner mode")
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38 d := flag.Bool( "d", false, "intaracitve mode")
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39 s := flag.Bool( "s", false, "server mode" )
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40 p := flag.Int( "p", 8080, "listen port in server mode" )
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41
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42 flag.Parse()
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43
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44 if flag.NFlag() == 0 {
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45 printTile()
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46 flag.PrintDefaults()
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47 fmt.Fprint( os.Stderr, "\n" )
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48 os.Exit( 1 )
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49 }
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50
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51 // Setting rates
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52 if *c == "" {
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53 e.DefaultRates()
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54 } else {
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55 f, err := os.Open( *c ); if err != nil {
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56 fmt.Fprintf( os.Stderr, "cannot open config-file : %v\n", err )
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57 os.Exit( 1 )
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58 }
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59
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60 r := csv.NewReader( f )
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61 r.Comment = '#'
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62 r.TrimLeadingSpace = true
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63 for {
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64 record, err := r.Read()
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65 if err == io.EOF {
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66 break
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67 } else if err != nil {
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68 log.Fatal( err )
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69 }
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70 e.AddRates( record[1], record[2], record[3] )
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71 }
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72 f.Close()
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74 }
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75
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76 switch {
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77
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78 // Show examples
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79 case *h :
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80 printTile()
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81 fmt.Fprint( os.Stderr, "1-liner mode:\n" )
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82 fmt.Fprint( os.Stderr, "> entai_app -l 30000 20160731 20161224\n\n" )
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83 fmt.Fprint( os.Stderr, "> entai_app -i -l 29000 20160731 20161224\n\n" )
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84 fmt.Fprint( os.Stderr, "> entai_app -i -v -l 15000 20160731 20161224\n\n" )
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85 fmt.Fprint( os.Stderr, "> entai_app -c conf/entai.conf -l 15000 20160731 20161224\n\n" )
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86 fmt.Fprint( os.Stderr, "batch mode:\n" )
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87 fmt.Fprint( os.Stderr, "> entai_app -b 1.csv 2.csv ...\n\n" )
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88 fmt.Fprint( os.Stderr, "server mode:\n" )
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89 fmt.Fprint( os.Stderr, "> entai_app -s -p 3000\n" )
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90 os.Exit( 1 )
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91
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92 // Show rates
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93 case *r :
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94 printTile()
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95 fmt.Fprint( os.Stderr, e.GetRates() )
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96 os.Exit( 0 )
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97
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98 // Server-mode ( not implement )
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99 case *s :
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100 s := fmt.Sprintf( "localhost:%d", *p )
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101 http.HandleFunc( "/", httpHandler )
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102 log.Fatal( http.ListenAndServe( s, nil ) )
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103
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104 // Intaractive-mode
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105 case *d :
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106 printTile()
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107 fmt.Print( e.GetRates() )
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108 fmt.Print( "-----------\n\n" )
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109
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110 var t, d, p string
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111 for {
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112 t = getFromTerminal( "Input Tax ", t )
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113 d = getFromTerminal( "Input Due ", d )
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114 p = getFromTerminal( "Input Paid", p )
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115
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116 result, detail, err := processEntai( t, d, p )
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117 if err != nil {
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118 fmt.Printf( "%v\n", err )
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119 }
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120 fmt.Printf( " = %d", result )
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121
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122 fmt.Print( "\t\t\t... Continue [Enter] / Detail [1] / Quit [9] ? " )
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123 input := bufio.NewScanner( os.Stdin )
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124 input.Scan()
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125 switch input.Text() {
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126 case "1" :
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127 fmt.Printf( " = %s\n\n", detail )
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128 case "9" :
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129 os.Exit( 0 )
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130 default :
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131 }
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132 }
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133
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134 // 1-Liner-mode
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135 case *l :
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136 p := flag.Arg(2)
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137 if p == "" {
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138 layout := "20060102"
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139 p = time.Now().Format( layout );
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140 }
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141
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142 if *i {
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143 fmt.Printf( "%s,%s,%s,", flag.Arg(0), flag.Arg(1), p )
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144 }
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145
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146 result, detail, err := processEntai( flag.Arg(0), flag.Arg(1), p )
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147 if err != nil {
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148 fmt.Fprintf( os.Stderr, "%s : %v\n", detail, err )
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149 os.Exit( 1 )
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150 }
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151 fmt.Print( result )
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152
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153 if *v {
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154 fmt.Print( ",", detail )
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155 }
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156 fmt.Print( "\n" )
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157
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158 os.Exit( 0 )
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159
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160 // Batch-mode
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161 case *b :
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162 files := flag.Args()
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163
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164 if len( files ) == 0 {
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165 fmt.Fprint( os.Stderr, "no input file.\n" )
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166 os.Exit( 1 )
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167 } else {
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168
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169 for _, file := range files {
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170 f, err := os.Open( file ); if err != nil {
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171 fmt.Fprintf( os.Stderr, "cannot open file.[%v]\n", err )
3dafd57af3b1 bug-fix.
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172 os.Exit( 1 )
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173 }
2
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174
1
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175 input := bufio.NewScanner( f )
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176 b := bufio.NewWriter( os.Stdout )
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177 for input.Scan() {
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178 s := strings.Split( input.Text(), "," )
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179 if strings.HasPrefix( input.Text(), "#" ) {
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180 if strings.Contains( input.Text(), "@@" ) {
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181 buf := strings.Replace( input.Text(), "#", "", 1 )
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182 buf = strings.Replace( buf, "@@", "", 1 )
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183 fmt.Fprintf( b, "%s\n", buf )
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184 }
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185 continue
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186 }
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187 result, detail, err := processEntai( s[0], s[1], s[2] )
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188 if err != nil {
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189 fmt.Fprintf( os.Stderr, "%s : %v\n", detail, err )
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190 os.Exit( 1 )
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191 }
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192 fmt.Fprintf( b, "%s,%s,%s,%d,%s\n", s[0], s[1], s[2], result, detail )
1
3dafd57af3b1 bug-fix.
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193 }
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194 b.Flush()
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195 f.Close()
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196 }
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197 os.Exit( 0 )
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198 }
0
de451fa0c9cd golang repository.
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199 }
de451fa0c9cd golang repository.
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200 }
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201
3
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202 // Subroutines
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203 func processEntai( tax, due, paid string ) ( int, string, error ) {
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204 t, msg, err := validInt( tax ); if err != nil {
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205 return -1, msg, err
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206 }
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207
2
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208 d, msg, err := validDate( due ); if err != nil {
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209 return -1, msg, err
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210 }
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211 p, msg, err := validDate( paid ); if err != nil {
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212 return -1, msg, err
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213 }
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214
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215 e.Set( d, p, t )
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216 result, detail := e.Result()
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217
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218 return result, detail, nil
0
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219 }
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220
2
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221 func validDate( s string ) ( time.Time, string, error ) {
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222 layout := "20060102"
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223 t, err := time.Parse( layout, s ); if err != nil {
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224 return t, "bad date format.", err
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225 }
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226 return t, "", nil
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227 }
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228
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229 func validInt( s string ) ( int, string, error ) {
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230 i, err := strconv.Atoi( s )
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diff changeset
231 if err != nil || i < 0 {
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232 return -1, "bad money format.", err
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233 }
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234 return i, "", nil
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235 }
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236
3
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237 func getFromTerminal( prompt, last string ) ( string ) {
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238 fmt.Printf( "%s > ", prompt )
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239 input := bufio.NewScanner( os.Stdin )
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240 input.Scan()
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241 s := input.Text()
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pyon@macmini
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diff changeset
242 if s == "." {
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diff changeset
243 s = last
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diff changeset
244 fmt.Printf( "%s > %s\n", prompt, s )
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diff changeset
245 }
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246 return s
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247 }
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248
5
e4066309b04f refactoring.
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diff changeset
249 func httpHandler( w http.ResponseWriter, r *http.Request ) {
e4066309b04f refactoring.
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250 fmt.Fprintf( w, "RemoteAddr: %q\n", r.RemoteAddr )
e4066309b04f refactoring.
pyon@macmini
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diff changeset
251 if err := r.ParseForm(); err != nil {
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pyon@macmini
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diff changeset
252 log.Print( err )
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253 }
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254 for k, v := range r.Form {
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255 fmt.Fprintf( w, "%q: %q\n", k, v )
e4066309b04f refactoring.
pyon@macmini
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diff changeset
256 }
e4066309b04f refactoring.
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diff changeset
257 }
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258
2
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diff changeset
259 func printTile() {
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260 fmt.Fprint( os.Stderr, "\n==================================================\n" )
3
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diff changeset
261 fmt.Fprintf( os.Stderr, " Entai_app ver %s ( 2016.10.19 ) - since 2016\n", ver )
2
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diff changeset
262 fmt.Fprint( os.Stderr, "==================================================\n\n" )
451c99c1d9de implement intaractive mode.
pyon@macmini
parents: 1
diff changeset
263 }
451c99c1d9de implement intaractive mode.
pyon@macmini
parents: 1
diff changeset
264