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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
package scfg_test
import (
"fmt"
"log"
"reflect"
"strings"
"testing"
"go.lindenii.runxiyu.org/lindenii-common/scfg"
)
func ExampleDecoder() {
var data struct {
Foo int `scfg:"foo"`
Bar struct {
Param string `scfg:",param"`
Baz string `scfg:"baz"`
} `scfg:"bar"`
}
raw := `foo 42
bar asdf {
baz hello
}
`
r := strings.NewReader(raw)
if err := scfg.NewDecoder(r).Decode(&data); err != nil {
log.Fatal(err)
}
fmt.Printf("Foo = %v\n", data.Foo)
fmt.Printf("Bar.Param = %v\n", data.Bar.Param)
fmt.Printf("Bar.Baz = %v\n", data.Bar.Baz)
// Output:
// Foo = 42
// Bar.Param = asdf
// Bar.Baz = hello
}
type nestedStructInner struct {
Bar string `scfg:"bar"`
}
type structParams struct {
Params []string `scfg:",param"`
Bar string
}
type textUnmarshaler struct {
text string
}
func (tu *textUnmarshaler) UnmarshalText(text []byte) error {
tu.text = string(text)
return nil
}
type textUnmarshalerParams struct {
Params []textUnmarshaler `scfg:",param"`
}
var barStr = "bar"
var unmarshalTests = []struct {
name string
raw string
want interface{}
}{
{
name: "stringMap",
raw: `hello world
foo bar`,
want: map[string]string{
"hello": "world",
"foo": "bar",
},
},
{
name: "simpleStruct",
raw: `MyString asdf
MyBool true
MyInt -42
MyUint 42
MyFloat 3.14`,
want: struct {
MyString string
MyBool bool
MyInt int
MyUint uint
MyFloat float32
}{
MyString: "asdf",
MyBool: true,
MyInt: -42,
MyUint: 42,
MyFloat: 3.14,
},
},
{
name: "simpleStructTag",
raw: `foo bar`,
want: struct {
Foo string `scfg:"foo"`
}{
Foo: "bar",
},
},
{
name: "sliceParams",
raw: `Foo a s d f`,
want: struct {
Foo []string
}{
Foo: []string{"a", "s", "d", "f"},
},
},
{
name: "arrayParams",
raw: `Foo a s d f`,
want: struct {
Foo [4]string
}{
Foo: [4]string{"a", "s", "d", "f"},
},
},
{
name: "pointers",
raw: `Foo bar`,
want: struct {
Foo *string
}{
Foo: &barStr,
},
},
{
name: "nestedMap",
raw: `foo {
bar baz
}`,
want: struct {
Foo map[string]string `scfg:"foo"`
}{
Foo: map[string]string{"bar": "baz"},
},
},
{
name: "nestedStruct",
raw: `foo {
bar baz
}`,
want: struct {
Foo nestedStructInner `scfg:"foo"`
}{
Foo: nestedStructInner{
Bar: "baz",
},
},
},
{
name: "structParams",
raw: `Foo param1 param2 {
Bar baz
}`,
want: struct {
Foo structParams
}{
Foo: structParams{
Params: []string{"param1", "param2"},
Bar: "baz",
},
},
},
{
name: "textUnmarshaler",
raw: `Foo param1
Bar param2
Baz param3`,
want: struct {
Foo []textUnmarshaler
Bar *textUnmarshaler
Baz textUnmarshalerParams
}{
Foo: []textUnmarshaler{{"param1"}},
Bar: &textUnmarshaler{"param2"},
Baz: textUnmarshalerParams{
Params: []textUnmarshaler{{"param3"}},
},
},
},
{
name: "directiveStructSlice",
raw: `Foo param1 param2 {
Bar baz
}
Foo param3 param4`,
want: struct {
Foo []structParams
}{
Foo: []structParams{
{
Params: []string{"param1", "param2"},
Bar: "baz",
},
{
Params: []string{"param3", "param4"},
},
},
},
},
{
name: "directiveMapSlice",
raw: `Foo {
key1 param1
}
Foo {
key2 param2
}`,
want: struct {
Foo []map[string]string
}{
Foo: []map[string]string{
{"key1": "param1"},
{"key2": "param2"},
},
},
},
}
func TestUnmarshal(t *testing.T) {
for _, tc := range unmarshalTests {
tc := tc // capture variable
t.Run(tc.name, func(t *testing.T) {
testUnmarshal(t, tc.raw, tc.want)
})
}
}
func testUnmarshal(t *testing.T, raw string, want interface{}) {
out := reflect.New(reflect.TypeOf(want))
r := strings.NewReader(raw)
if err := scfg.NewDecoder(r).Decode(out.Interface()); err != nil {
t.Fatalf("Decode() = %v", err)
}
got := out.Elem().Interface()
if !reflect.DeepEqual(got, want) {
t.Errorf("Decode() = \n%#v\n but want \n%#v", got, want)
}
}
|
