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
|
package config
import (
"bytes"
"errors"
"fmt"
"io"
)
func (p *configParser) parseKeyValue(cfg *Config) error {
if p.currentSection == "" {
return errors.New("key-value pair before any section header")
}
var key bytes.Buffer
for {
ch, err := p.nextChar()
if errors.Is(err, io.EOF) {
break
}
if err != nil {
return err
}
if ch == '=' || ch == '\n' || isSpace(ch) {
p.unreadChar(ch)
break
}
if !isKeyChar(ch) {
return fmt.Errorf("invalid character in key: %q", ch)
}
key.WriteByte(toLower(ch))
}
keyStr := key.String()
if len(keyStr) == 0 {
return errors.New("empty key name")
}
if !isLetter(keyStr[0]) {
return errors.New("key must start with a letter")
}
for {
ch, err := p.nextChar()
if errors.Is(err, io.EOF) {
cfg.entries = append(cfg.entries, ConfigEntry{
Section: p.currentSection,
Subsection: p.currentSubsec,
Key: keyStr,
Kind: ValueValueless,
Value: "",
})
return nil
}
if err != nil {
return err
}
if ch == '\n' {
cfg.entries = append(cfg.entries, ConfigEntry{
Section: p.currentSection,
Subsection: p.currentSubsec,
Key: keyStr,
Kind: ValueValueless,
Value: "",
})
return nil
}
if ch == '#' || ch == ';' {
err := p.skipToEOL()
if err != nil && !errors.Is(err, io.EOF) {
return err
}
cfg.entries = append(cfg.entries, ConfigEntry{
Section: p.currentSection,
Subsection: p.currentSubsec,
Key: keyStr,
Kind: ValueValueless,
Value: "",
})
return nil
}
if ch == '=' {
break
}
if !isSpace(ch) {
return fmt.Errorf("unexpected character after key: %q", ch)
}
}
value, err := p.parseValue()
if err != nil {
return err
}
cfg.entries = append(cfg.entries, ConfigEntry{
Section: p.currentSection,
Subsection: p.currentSubsec,
Key: keyStr,
Kind: ValueString,
Value: value,
})
return nil
}
|
