1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
package mintage
import (
"encoding/csv"
"io"
"os"
"path/filepath"
"strconv"
"time"
)
func Parse(country string) ([3]Data, error) {
if data, ok := cache[country]; ok {
return data, nil
}
var (
data [3]Data
err error
path = filepath.Join("data", "mintages", country)
)
data[TypeCirc].Standard, err = parseS(path + "-s-circ.csv")
if err != nil {
return data, err
}
data[TypeNifc].Standard, err = parseS(path + "-s-nifc.csv")
if err != nil {
return data, err
}
data[TypeProof].Standard, err = parseS(path + "-s-proof.csv")
if err != nil {
return data, err
}
data[TypeCirc].Commemorative, err = parseC(path + "-c-circ.csv")
if err != nil {
return data, err
}
data[TypeNifc].Commemorative, err = parseC(path + "-c-nifc.csv")
if err != nil {
return data, err
}
data[TypeProof].Commemorative, err = parseC(path + "-c-proof.csv")
if err == nil {
cache[country] = data
}
return data, err
}
func parseS(path string) ([]SRow, error) {
rows := make([]SRow, 0, guessRows(false))
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
r := csv.NewReader(f)
r.Comment = '#'
r.FieldsPerRecord = 11
r.ReuseRecord = true
/* Skip header */
if _, err := r.Read(); err != nil {
return nil, err
}
for {
record, err := r.Read()
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
data := SRow{
Mintmark: record[1],
Reference: record[10],
}
data.Year, err = strconv.Atoi(record[0])
if err != nil {
return nil, err
}
for i, s := range record[2:10] {
if s == "" {
data.Mintages[i] = Unknown
} else {
data.Mintages[i], err = strconv.Atoi(s)
if err != nil {
data.Mintages[i] = Invalid
}
}
}
rows = append(rows, data)
}
return rows, nil
}
func parseC(path string) ([]CRow, error) {
rows := make([]CRow, 0, guessRows(true))
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
r := csv.NewReader(f)
r.Comment = '#'
r.FieldsPerRecord = 5
r.ReuseRecord = true
/* Skip header */
if _, err := r.Read(); err != nil {
return nil, err
}
for {
record, err := r.Read()
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
data := CRow{
Name: record[1],
Mintmark: record[2],
Reference: record[4],
}
data.Year, err = strconv.Atoi(record[0])
if err != nil {
return nil, err
}
s := record[3]
if s == "" {
data.Mintage = Unknown
} else {
data.Mintage, err = strconv.Atoi(s)
if err != nil {
data.Mintage = Invalid
}
}
rows = append(rows, data)
}
return rows, nil
}
func guessRows(commemorativep bool) int {
/* Try to guess the number of rows for Germany, because nobody needs more
rows than Germany. */
n := (time.Now().Year() - 2002) * 5
if commemorativep {
return n * 2
}
return n
}
|
